1996-02-13 09:26:53 +00:00
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/* Machine-dependent ELF dynamic relocation inline functions. m68k version.
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2021-01-02 19:32:25 +00:00
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Copyright (C) 1996-2021 Free Software Foundation, Inc.
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1996-12-04 01:41:27 +00:00
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This file is part of the GNU C Library.
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1996-02-13 09:26:53 +00:00
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1996-12-04 01:41:27 +00:00
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The GNU C Library is free software; you can redistribute it and/or
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2001-07-06 04:56:23 +00:00
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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1996-02-13 09:26:53 +00:00
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1996-12-04 01:41:27 +00:00
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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2001-07-06 04:56:23 +00:00
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Lesser General Public License for more details.
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1996-02-13 09:26:53 +00:00
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2001-07-06 04:56:23 +00:00
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You should have received a copy of the GNU Lesser General Public
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2012-03-09 23:56:38 +00:00
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License along with the GNU C Library. If not, see
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Prefer https to http for gnu.org and fsf.org URLs
Also, change sources.redhat.com to sourceware.org.
This patch was automatically generated by running the following shell
script, which uses GNU sed, and which avoids modifying files imported
from upstream:
sed -ri '
s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g
s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g
' \
$(find $(git ls-files) -prune -type f \
! -name '*.po' \
! -name 'ChangeLog*' \
! -path COPYING ! -path COPYING.LIB \
! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \
! -path manual/texinfo.tex ! -path scripts/config.guess \
! -path scripts/config.sub ! -path scripts/install-sh \
! -path scripts/mkinstalldirs ! -path scripts/move-if-change \
! -path INSTALL ! -path locale/programs/charmap-kw.h \
! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \
! '(' -name configure \
-execdir test -f configure.ac -o -f configure.in ';' ')' \
! '(' -name preconfigure \
-execdir test -f preconfigure.ac ';' ')' \
-print)
and then by running 'make dist-prepare' to regenerate files built
from the altered files, and then executing the following to cleanup:
chmod a+x sysdeps/unix/sysv/linux/riscv/configure
# Omit irrelevant whitespace and comment-only changes,
# perhaps from a slightly-different Autoconf version.
git checkout -f \
sysdeps/csky/configure \
sysdeps/hppa/configure \
sysdeps/riscv/configure \
sysdeps/unix/sysv/linux/csky/configure
# Omit changes that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines
git checkout -f \
sysdeps/powerpc/powerpc64/ppc-mcount.S \
sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
# Omit change that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline
git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
2019-09-07 05:40:42 +00:00
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<https://www.gnu.org/licenses/>. */
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1996-02-13 09:26:53 +00:00
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1996-07-17 16:14:42 +00:00
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#ifndef dl_machine_h
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#define dl_machine_h
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1996-02-13 09:26:53 +00:00
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#define ELF_MACHINE_NAME "m68k"
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1997-05-07 14:32:55 +00:00
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#include <sys/param.h>
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2006-10-03 Richard Sandiford <richard@codesourcery.com>
* sysdeps/m68k/bits/mathdef.h: Moved from sysdeps/m68k to
sysdeps/m68k/m680x0.
* sysdeps/m68k/m68020/submul_1.S: Likewise.
* sysdeps/m68k/m68020/Makefile: Likewise.
* sysdeps/m68k/m68020/mul_1.S: Likewise.
* sysdeps/m68k/m68020/wordcopy.S: Likewise.
* sysdeps/m68k/m68020/addmul_1.S: Likewise.
* sysdeps/m68k/m68020/bits/string.h: Likewise.
* sysdeps/m68k/m68020/bits/atomic.h: Likewise.
* sysdeps/m68k/sub_n.S: Likewise.
* sysdeps/m68k/add_n.S: Likewise.
* sysdeps/m68k/s_isnanl.c: Likewise.
* sysdeps/m68k/fpu/s_log1p.c: Likewise.
* sysdeps/m68k/fpu/e_asinf.c: Likewise.
* sysdeps/m68k/fpu/s_cosl.c: Likewise.
* sysdeps/m68k/fpu/s_isinff.c: Likewise.
* sysdeps/m68k/fpu/k_rem_pio2.c: Likewise.
* sysdeps/m68k/fpu/s_ccos.c: Likewise.
* sysdeps/m68k/fpu/s_expm1.c: Likewise.
* sysdeps/m68k/fpu/slowexp.c: Likewise.
* sysdeps/m68k/fpu/k_rem_pio2l.c: Likewise.
* sysdeps/m68k/fpu/s_ccoshf.c: Likewise.
* sysdeps/m68k/fpu/s_ilogbl.c: Likewise.
* sysdeps/m68k/fpu/Makefile: Likewise.
* sysdeps/m68k/fpu/s_expm1f.c: Likewise.
* sysdeps/m68k/fpu/s_significandf.c: Likewise.
* sysdeps/m68k/fpu/e_pow.c: Likewise.
* sysdeps/m68k/fpu/s_csinh.c: Likewise.
* sysdeps/m68k/fpu/e_exp.c: Likewise.
* sysdeps/m68k/fpu/s_remquof.c: Likewise.
* sysdeps/m68k/fpu/s_ilogbf.c: Likewise.
* sysdeps/m68k/fpu/s_truncl.c: Likewise.
* sysdeps/m68k/fpu/s_frexpf.c: Likewise.
* sysdeps/m68k/fpu/s_cos.c: Likewise.
* sysdeps/m68k/fpu/fraiseexcpt.c: Likewise.
* sysdeps/m68k/fpu/branred.c: Likewise.
* sysdeps/m68k/fpu/s_frexpl.c: Likewise.
* sysdeps/m68k/fpu/s_atan.c: Likewise.
* sysdeps/m68k/fpu/e_rem_pio2f.c: Likewise.
* sysdeps/m68k/fpu/e_scalbl.c: Likewise.
* sysdeps/m68k/fpu/e_exp2.c: Likewise.
* sysdeps/m68k/fpu/s_cexpf.c: Likewise.
* sysdeps/m68k/fpu/mplog.c: Likewise.
* sysdeps/m68k/fpu/s_rintf.c: Likewise.
* sysdeps/m68k/fpu/s_tanh.c: Likewise.
* sysdeps/m68k/fpu/e_scalbf.c: Likewise.
* sysdeps/m68k/fpu/s_csinhl.c: Likewise.
* sysdeps/m68k/fpu/s_floorl.c: Likewise.
* sysdeps/m68k/fpu/k_tanf.c: Likewise.
* sysdeps/m68k/fpu/k_tanl.c: Likewise.
* sysdeps/m68k/fpu/e_fmodf.c: Likewise.
* sysdeps/m68k/fpu/e_atanhf.c: Likewise.
* sysdeps/m68k/fpu/s_isnanf.c: Likewise.
* sysdeps/m68k/fpu/s_fpclassifyl.c: Likewise.
* sysdeps/m68k/fpu/s_modf.c: Likewise.
* sysdeps/m68k/fpu/e_log2.c: Likewise.
* sysdeps/m68k/fpu/e_acosf.c: Likewise.
* sysdeps/m68k/fpu/s_log1pl.c: Likewise.
* sysdeps/m68k/fpu/e_log2f.c: Likewise.
* sysdeps/m68k/fpu/mpa.c: Likewise.
* sysdeps/m68k/fpu/t_exp.c: Likewise.
* sysdeps/m68k/fpu/e_acos.c: Likewise.
* sysdeps/m68k/fpu/s_expm1l.c: Likewise.
* sysdeps/m68k/fpu/s_ccoshl.c: Likewise.
* sysdeps/m68k/fpu/s_sinf.c: Likewise.
* sysdeps/m68k/fpu/k_tan.c: Likewise.
* sysdeps/m68k/fpu/k_cosl.c: Likewise.
* sysdeps/m68k/fpu/e_remainder.c: Likewise.
* sysdeps/m68k/fpu/s_trunc.c: Likewise.
* sysdeps/m68k/fpu/s_sincos.c: Likewise.
* sysdeps/m68k/fpu/s_scalbnl.c: Likewise.
* sysdeps/m68k/fpu/s_finitef.c: Likewise.
* sysdeps/m68k/fpu/s_tanhl.c: Likewise.
* sysdeps/m68k/fpu/s_lrintl.c: Likewise.
* sysdeps/m68k/fpu/slowpow.c: Likewise.
* sysdeps/m68k/fpu/mpexp.c: Likewise.
* sysdeps/m68k/fpu/s_isnanl.c: Likewise.
* sysdeps/m68k/fpu/e_expf.c: Likewise.
* sysdeps/m68k/fpu/s_significand.c: Likewise.
* sysdeps/m68k/fpu/e_sinhf.c: Likewise.
* sysdeps/m68k/fpu/s_tanl.c: Likewise.
* sysdeps/m68k/fpu/s_tanhf.c: Likewise.
* sysdeps/m68k/fpu/s_cexp.c: Likewise.
* sysdeps/m68k/fpu/e_sqrtf.c: Likewise.
* sysdeps/m68k/fpu/s_isinf.c: Likewise.
* sysdeps/m68k/fpu/s_nearbyint.c: Likewise.
* sysdeps/m68k/fpu/e_fmod.c: Likewise.
* sysdeps/m68k/fpu/sincos32.c: Likewise.
* sysdeps/m68k/fpu/e_sqrtl.c: Likewise.
* sysdeps/m68k/fpu/s_sincosl.c: Likewise.
* sysdeps/m68k/fpu/e_atan2f.c: Likewise.
* sysdeps/m68k/fpu/s_nearbyintf.c: Likewise.
* sysdeps/m68k/fpu/e_fmodl.c: Likewise.
* sysdeps/m68k/fpu/e_coshf.c: Likewise.
* sysdeps/m68k/fpu/s_csinf.c: Likewise.
* sysdeps/m68k/fpu/s_ccosl.c: Likewise.
* sysdeps/m68k/fpu/e_sqrt.c: Likewise.
* sysdeps/m68k/fpu/s_sin.c: Likewise.
* sysdeps/m68k/fpu/e_asin.c: Likewise.
* sysdeps/m68k/fpu/mptan.c: Likewise.
* sysdeps/m68k/fpu/e_exp10f.c: Likewise.
* sysdeps/m68k/fpu/e_scalb.c: Likewise.
* sysdeps/m68k/fpu/s_finitel.c: Likewise.
* sysdeps/m68k/fpu/e_log10.c: Likewise.
* sysdeps/m68k/fpu/k_sinl.c: Likewise.
* sysdeps/m68k/fpu/e_remainderl.c: Likewise.
* sysdeps/m68k/fpu/s_remquol.c: Likewise.
* sysdeps/m68k/fpu/s_scalblnf.c: Likewise.
* sysdeps/m68k/fpu/s_llrint.c: Likewise.
* sysdeps/m68k/fpu/e_rem_pio2.c: Likewise.
* sysdeps/m68k/fpu/e_asinl.c: Likewise.
* sysdeps/m68k/fpu/e_logl.c: Likewise.
* sysdeps/m68k/fpu/s_cosf.c: Likewise.
* sysdeps/m68k/fpu/s_rint.c: Likewise.
* sysdeps/m68k/fpu/s_ceill.c: Likewise.
* sysdeps/m68k/fpu/s_modfl.c: Likewise.
* sysdeps/m68k/fpu/s_csinl.c: Likewise.
* sysdeps/m68k/fpu/s_tan.c: Likewise.
* sysdeps/m68k/fpu/s_sincosf.c: Likewise.
* sysdeps/m68k/fpu/dosincos.c: Likewise.
* sysdeps/m68k/fpu/e_powl.c: Likewise.
* sysdeps/m68k/fpu/s_ilogb.c: Likewise.
* sysdeps/m68k/fpu/s_llrintl.c: Likewise.
* sysdeps/m68k/fpu/e_expl.c: Likewise.
* sysdeps/m68k/fpu/libm-test-ulps: Likewise.
* sysdeps/m68k/fpu/s_tanf.c: Likewise.
* sysdeps/m68k/fpu/mpsqrt.c: Likewise.
* sysdeps/m68k/fpu/s_sinl.c: Likewise.
* sysdeps/m68k/fpu/mathimpl.h: Likewise.
* sysdeps/m68k/fpu/e_acosl.c: Likewise.
* sysdeps/m68k/fpu/e_cosh.c: Likewise.
* sysdeps/m68k/fpu/s_cexpl.c: Likewise.
* sysdeps/m68k/fpu/s_fabsl.c: Likewise.
* sysdeps/m68k/fpu/halfulp.c: Likewise.
* sysdeps/m68k/fpu/s_modff.c: Likewise.
* sysdeps/m68k/fpu/s_isnan.c: Likewise.
* sysdeps/m68k/fpu/e_atan2.c: Likewise.
* sysdeps/m68k/fpu/s_fabs.c: Likewise.
* sysdeps/m68k/fpu/e_log10f.c: Likewise.
* sysdeps/m68k/fpu/k_cosf.c: Likewise.
* sysdeps/m68k/fpu/e_sinh.c: Likewise.
* sysdeps/m68k/fpu/s_truncf.c: Likewise.
* sysdeps/m68k/fpu/s_ceil.c: Likewise.
* sysdeps/m68k/fpu/s_log1pf.c: Likewise.
* sysdeps/m68k/fpu/e_logf.c: Likewise.
* sysdeps/m68k/fpu/mpatan.c: Likewise.
* sysdeps/m68k/fpu/s_csin.c: Likewise.
* sysdeps/m68k/fpu/e_exp2l.c: Likewise.
* sysdeps/m68k/fpu/e_sinhl.c: Likewise.
* sysdeps/m68k/fpu/e_atan2l.c: Likewise.
* sysdeps/m68k/fpu/s_scalbn.c: Likewise.
* sysdeps/m68k/fpu/s_floorf.c: Likewise.
* sysdeps/m68k/fpu/e_log2l.c: Likewise.
* sysdeps/m68k/fpu/s_atanl.c: Likewise.
* sysdeps/m68k/fpu/s_llrintf.c: Likewise.
* sysdeps/m68k/fpu/k_sinf.c: Likewise.
* sysdeps/m68k/fpu/s_csinhf.c: Likewise.
* sysdeps/m68k/fpu/s_frexp.c: Likewise.
* sysdeps/m68k/fpu/s_atanf.c: Likewise.
* sysdeps/m68k/fpu/s_floor.c: Likewise.
* sysdeps/m68k/fpu/e_exp10l.c: Likewise.
* sysdeps/m68k/fpu/doasin.c: Likewise.
* sysdeps/m68k/fpu/s_rintl.c: Likewise.
* sysdeps/m68k/fpu/e_atanhl.c: Likewise.
* sysdeps/m68k/fpu/e_remainderf.c: Likewise.
* sysdeps/m68k/fpu/s_scalbln.c: Likewise.
* sysdeps/m68k/fpu/e_rem_pio2l.c: Likewise.
* sysdeps/m68k/fpu/e_exp10.c: Likewise.
* sysdeps/m68k/fpu/s_lrintf.c: Likewise.
* sysdeps/m68k/fpu/k_cos.c: Likewise.
* sysdeps/m68k/fpu/s_lrint.c: Likewise.
* sysdeps/m68k/fpu/s_ccosf.c: Likewise.
* sysdeps/m68k/fpu/s_scalblnl.c: Likewise.
* sysdeps/m68k/fpu/switch/Makefile: Likewise.
* sysdeps/m68k/fpu/switch/switch.c: Likewise.
* sysdeps/m68k/fpu/switch/68881-sw.h: Likewise.
* sysdeps/m68k/fpu/switch/bits/mathinline.h: Likewise.
* sysdeps/m68k/fpu/e_log.c: Likewise.
* sysdeps/m68k/fpu/s_nextafterl.c: Likewise.
* sysdeps/m68k/fpu/s_nearbyintl.c: Likewise.
* sysdeps/m68k/fpu/mpatan2.c: Likewise.
* sysdeps/m68k/fpu/k_sin.c: Likewise.
* sysdeps/m68k/fpu/e_atanh.c: Likewise.
* sysdeps/m68k/fpu/s_remquo.c: Likewise.
* sysdeps/m68k/fpu/e_log10l.c: Likewise.
* sysdeps/m68k/fpu/s_ceilf.c: Likewise.
* sysdeps/m68k/fpu/s_fabsf.c: Likewise.
* sysdeps/m68k/fpu/s_significandl.c: Likewise.
* sysdeps/m68k/fpu/s_ccosh.c: Likewise.
* sysdeps/m68k/fpu/e_coshl.c: Likewise.
* sysdeps/m68k/fpu/s_scalbnf.c: Likewise.
* sysdeps/m68k/fpu/s_finite.c: Likewise.
* sysdeps/m68k/fpu/e_exp2f.c: Likewise.
* sysdeps/m68k/fpu/k_rem_pio2f.c: Likewise.
* sysdeps/m68k/fpu/s_isinfl.c: Likewise.
* sysdeps/m68k/fpu/bits/mathinline.h: Likewise.
* sysdeps/m68k/fpu/e_powf.c: Likewise.
* sysdeps/m68k/rshift.S: Likewise.
* sysdeps/m68k/lshift.S: Likewise.
* sysdeps/m68k/strtold_l.c: Likewise.
* sysdeps/m68k/printf_fphex.c: Likewise.
* sysdeps/m68k/s_isinfl.c: Likewise.
* sysdeps/m68k/bits/huge_vall.h: Likewise.
* sysdeps/m68k/asm-syntax.h (andw, andl, subqw, tstw, tstl): New.
* sysdeps/m68k/bits/byteswap.h (__bswap32): Don't define for
Coldfire targets.
* sysdeps/m68k/bits/setjmp.h (__jmp_buf): Add a 64-byte
__fpregs field for Coldfire FPUs.
* sysdeps/m68k/dl-machine.h: Include sysdep.h.
(elf_machine_load_address): Use PCREL_OP.
(_dl_start_user): Likewise.
* sysdeps/m68k/dl-trampoline.S (_dl_runtime_resolve): Avoid jmp (%dN)
on Coldfire; push the target address and use rts instead.
(_dl_runtime_profile): Likewise. Round up the frame size to longword
rather than word alignment. Avoid dbra on Coldfire. Avoid using
jsr (%d0) on Coldfire; push the return address and target address
and use rts instead. Use fmovem.l rather than fmovem.x on Coldfire.
Add missing initialization of lrv_a0 and restore a0 from it after
calling _dl_call_pltexit. Adjust the stack offsets of later data
accordingly, fixing a previously incorrect offset for the inregs
parameter.
* sysdeps/m68k/fpu/fegetenv.c (__fegetenv): Save the control
registers individually on Coldfire targets.
* sysdeps/m68k/fpu/feholdexcpt.c (feholdexcept): Likewise.
Add missing libm_hidden_def.
* sysdeps/m68k/fpu/fesetenv.c (__fesetenv): Save and restore the
control registers individually on Coldfire targets.
* sysdeps/m68k/fpu/fesetround.c (fesetround): Add missing
libm_hidden_def.
* sysdeps/m68k/fpu_control.h: Add the Coldfire bit assignments to
the main comment.
(_FPU_DOUBLE): Define to 0 for Coldfire.
(_FPU_EXTENDED): Don't define for Coldfire.
(_FPU_RESERVED): Include bit 15 for Coldfire.
* sysdeps/m68k/Implies: Remove ieee754/ldbl-96.
* sysdeps/m68k/m680x0/Implies: Add it to this new file instead.
* sysdeps/m68k/ldsodefs.h: New file.
* sysdeps/m68k/__longjmp.c (__longjmp): Restore the floating-point
registers when using a Coldfire FPU.
* sysdeps/m68k/Makefile (long-double-fcts): Delete.
* sysdeps/m68k/m680x0/Makefile: Add it to this new file instead.
* sysdeps/m68k/memchr.S (__memchr): Add Coldfire code. Avoid
unnecessary moves.
* sysdeps/m68k/preconfigure (m680?0): Add "m680x0" to $machine.
(m68k): Use the compiler to decide whether $machine should be
set to m68k/coldfire or m68k/m680x0/m68020.
* sysdeps/m68k/rawmemchr.S (__rawmemchr): Add Coldfire code. Avoid
unnecessary moves.
* sysdeps/m68k/setjmp.c (__sigsetjmp): Save the floating-point
registers when using a Coldfire FPU. Use libc_hidden_def rather
than hidden_def.
* sysdeps/m68k/strchrnul.S (__strchrnul): Add Coldfire code. Avoid
unnecessary moves.
* sysdeps/m68k/strchr.S (strchr): Likewise.
* sysdeps/m68k/sysdep.h (PCREL_OP): Define.
* sysdeps/m68k/tst-audit.h: New file.
* sysdeps/m68k/wcpcpy.c: Likewise.
* sysdeps/m68k/wcpcpy_chk.c: Likewise.
* sysdeps/unix/sysv/linux/m68k/configure.in: New file.
* sysdeps/unix/sysv/linux/m68k/configure: Likewise.
* sysdeps/unix/sysv/linux/m68k/clone.S (__clone): Add Coldfire code.
* sysdeps/unix/sysv/linux/m68k/register-dump.h (real_catch_segfault):
Do not define on Coldfire.
(catch_segfault): Likewise.
(register_dump): Use the Coldfire-specific sigcontext fields to
display call-saved data and address registers (rather than the
data stored in sc_fpstate by real_catch_segfault). Display 8-byte
floating-point registers on Coldfire.
* sysdeps/unix/sysv/linux/m68k/socket.S (__socket): Pass a temporary
register to SINGLE_THREAD_P.
* sysdeps/unix/sysv/linux/m68k/sys/reg.h (PT_FP0): Redefine for
Coldfire.
(PT_FP1, PT_FP2, PT_FP3, PT_FP4, PT_FP5, PT_FP6, PT_FP7): Likewise.
* sysdeps/unix/sysv/linux/m68k/sys/ucontext.h (fpregset): Sync field
order with linux. Make f_fpregs an 8*2 array on Coldfire.
(ucontext): Sync field order with linux.
* sysdeps/unix/sysv/linux/m68k/sysdep.h: Guard against multiple
inclusion.
(SYSCALL_ERROR_HANDLER): Use PCREL_OP.
* sysdeps/unix/sysv/linux/m68k/syscalls.list (oldgetrlimit): Delete.
(oldsetrlimit): Likewise.
* sysdeps/unix/sysv/linux/m68k/m680x0/syscalls.list: New file.
List oldgetrlimit and oldsetrlimit here instead.
* sysdeps/unix/sysv/linux/m68k/bits/sigcontext.h: New file.
* sysdeps/unix/sysv/linux/m68k/bits/siginfo.h: Likewise.
* sysdeps/m68k/coldfire/bits/atomic.h: Likewise.
* sysdeps/m68k/coldfire/fpu/e_sqrt.c: Likewise.
* sysdeps/m68k/coldfire/fpu/e_sqrtf.c: Likewise.
* sysdeps/m68k/coldfire/fpu/fraiseexcpt.c: Likewise.
* sysdeps/m68k/coldfire/fpu/libm-test-ulps: Likewise.
* sysdeps/m68k/coldfire/fpu/s_fabs.c: Likewise.
* sysdeps/m68k/coldfire/fpu/s_fabsf.c: Likewise.
* sysdeps/m68k/coldfire/fpu/s_lrint.c: Likewise.
* sysdeps/m68k/coldfire/fpu/s_lrintf.c: Likewise.
* sysdeps/m68k/coldfire/fpu/s_rint.c: Likewise.
* sysdeps/m68k/coldfire/fpu/s_rintf.c: Likewise.
* sysdeps/m68k/coldfire/shlib-versions: Likewise.
2006-10-03 14:44:27 +00:00
|
|
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#include <sysdep.h>
|
2010-03-12 18:50:55 +00:00
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|
|
#include <dl-tls.h>
|
elf: Fix dynamic-link.h usage on rtld.c
The 4af6982e4c fix does not fully handle RTLD_BOOTSTRAP usage on
rtld.c due two issues:
1. RTLD_BOOTSTRAP is also used on dl-machine.h on various
architectures and it changes the semantics of various machine
relocation functions.
2. The elf_get_dynamic_info() change was done sideways, previously
to 490e6c62aa get-dynamic-info.h was included by the first
dynamic-link.h include *without* RTLD_BOOTSTRAP being defined.
It means that the code within elf_get_dynamic_info() that uses
RTLD_BOOTSTRAP is in fact unused.
To fix 1. this patch now includes dynamic-link.h only once with
RTLD_BOOTSTRAP defined. The ELF_DYNAMIC_RELOCATE call will now have
the relocation fnctions with the expected semantics for the loader.
And to fix 2. part of 4af6982e4c is reverted (the check argument
elf_get_dynamic_info() is not required) and the RTLD_BOOTSTRAP
pieces are removed.
To reorganize the includes the static TLS definition is moved to
its own header to avoid a circular dependency (it is defined on
dynamic-link.h and dl-machine.h requires it at same time other
dynamic-link.h definition requires dl-machine.h defitions).
Also ELF_MACHINE_NO_REL, ELF_MACHINE_NO_RELA, and ELF_MACHINE_PLT_REL
are moved to its own header. Only ancient ABIs need special values
(arm, i386, and mips), so a generic one is used as default.
The powerpc Elf64_FuncDesc is also moved to its own header, since
csu code required its definition (which would require either include
elf/ folder or add a full path with elf/).
Checked on x86_64, i686, aarch64, armhf, powerpc64, powerpc32,
and powerpc64le.
Reviewed-by: Szabolcs Nagy <szabolcs.nagy@arm.com>
(cherry picked from commit d6d89608ac8cf2b37c75debad1fff653f6939f90)
Resolved conflicts:
elf/rtld.c
2021-10-13 12:49:34 +00:00
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#include <dl-static-tls.h>
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#include <dl-machine-rel.h>
|
1997-05-07 14:32:55 +00:00
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|
2000-10-20 17:04:28 +00:00
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/* Return nonzero iff ELF header is compatible with the running host. */
|
1996-02-13 09:26:53 +00:00
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|
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static inline int
|
2000-10-20 17:04:28 +00:00
|
|
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elf_machine_matches_host (const Elf32_Ehdr *ehdr)
|
1996-02-13 09:26:53 +00:00
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{
|
2000-10-20 17:04:28 +00:00
|
|
|
return ehdr->e_machine == EM_68K;
|
1996-02-13 09:26:53 +00:00
|
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}
|
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2008-03-28 12:23:06 +00:00
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/* Return the link-time address of _DYNAMIC.
|
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|
This must be inlined in a function which uses global data. */
|
1996-12-04 01:41:27 +00:00
|
|
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static inline Elf32_Addr
|
|
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|
elf_machine_dynamic (void)
|
1996-02-13 09:26:53 +00:00
|
|
|
{
|
2008-03-28 12:23:06 +00:00
|
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Elf32_Addr addr;
|
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asm ("move.l _DYNAMIC@GOT.w(%%a5), %0"
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: "=a" (addr));
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return addr;
|
1996-02-13 09:26:53 +00:00
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}
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/* Return the run-time load address of the shared object. */
|
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static inline Elf32_Addr
|
|
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|
elf_machine_load_address (void)
|
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{
|
1996-02-18 18:31:55 +00:00
|
|
|
Elf32_Addr addr;
|
2017-10-20 10:36:34 +00:00
|
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|
#ifdef SHARED
|
2006-10-03 Richard Sandiford <richard@codesourcery.com>
* sysdeps/m68k/bits/mathdef.h: Moved from sysdeps/m68k to
sysdeps/m68k/m680x0.
* sysdeps/m68k/m68020/submul_1.S: Likewise.
* sysdeps/m68k/m68020/Makefile: Likewise.
* sysdeps/m68k/m68020/mul_1.S: Likewise.
* sysdeps/m68k/m68020/wordcopy.S: Likewise.
* sysdeps/m68k/m68020/addmul_1.S: Likewise.
* sysdeps/m68k/m68020/bits/string.h: Likewise.
* sysdeps/m68k/m68020/bits/atomic.h: Likewise.
* sysdeps/m68k/sub_n.S: Likewise.
* sysdeps/m68k/add_n.S: Likewise.
* sysdeps/m68k/s_isnanl.c: Likewise.
* sysdeps/m68k/fpu/s_log1p.c: Likewise.
* sysdeps/m68k/fpu/e_asinf.c: Likewise.
* sysdeps/m68k/fpu/s_cosl.c: Likewise.
* sysdeps/m68k/fpu/s_isinff.c: Likewise.
* sysdeps/m68k/fpu/k_rem_pio2.c: Likewise.
* sysdeps/m68k/fpu/s_ccos.c: Likewise.
* sysdeps/m68k/fpu/s_expm1.c: Likewise.
* sysdeps/m68k/fpu/slowexp.c: Likewise.
* sysdeps/m68k/fpu/k_rem_pio2l.c: Likewise.
* sysdeps/m68k/fpu/s_ccoshf.c: Likewise.
* sysdeps/m68k/fpu/s_ilogbl.c: Likewise.
* sysdeps/m68k/fpu/Makefile: Likewise.
* sysdeps/m68k/fpu/s_expm1f.c: Likewise.
* sysdeps/m68k/fpu/s_significandf.c: Likewise.
* sysdeps/m68k/fpu/e_pow.c: Likewise.
* sysdeps/m68k/fpu/s_csinh.c: Likewise.
* sysdeps/m68k/fpu/e_exp.c: Likewise.
* sysdeps/m68k/fpu/s_remquof.c: Likewise.
* sysdeps/m68k/fpu/s_ilogbf.c: Likewise.
* sysdeps/m68k/fpu/s_truncl.c: Likewise.
* sysdeps/m68k/fpu/s_frexpf.c: Likewise.
* sysdeps/m68k/fpu/s_cos.c: Likewise.
* sysdeps/m68k/fpu/fraiseexcpt.c: Likewise.
* sysdeps/m68k/fpu/branred.c: Likewise.
* sysdeps/m68k/fpu/s_frexpl.c: Likewise.
* sysdeps/m68k/fpu/s_atan.c: Likewise.
* sysdeps/m68k/fpu/e_rem_pio2f.c: Likewise.
* sysdeps/m68k/fpu/e_scalbl.c: Likewise.
* sysdeps/m68k/fpu/e_exp2.c: Likewise.
* sysdeps/m68k/fpu/s_cexpf.c: Likewise.
* sysdeps/m68k/fpu/mplog.c: Likewise.
* sysdeps/m68k/fpu/s_rintf.c: Likewise.
* sysdeps/m68k/fpu/s_tanh.c: Likewise.
* sysdeps/m68k/fpu/e_scalbf.c: Likewise.
* sysdeps/m68k/fpu/s_csinhl.c: Likewise.
* sysdeps/m68k/fpu/s_floorl.c: Likewise.
* sysdeps/m68k/fpu/k_tanf.c: Likewise.
* sysdeps/m68k/fpu/k_tanl.c: Likewise.
* sysdeps/m68k/fpu/e_fmodf.c: Likewise.
* sysdeps/m68k/fpu/e_atanhf.c: Likewise.
* sysdeps/m68k/fpu/s_isnanf.c: Likewise.
* sysdeps/m68k/fpu/s_fpclassifyl.c: Likewise.
* sysdeps/m68k/fpu/s_modf.c: Likewise.
* sysdeps/m68k/fpu/e_log2.c: Likewise.
* sysdeps/m68k/fpu/e_acosf.c: Likewise.
* sysdeps/m68k/fpu/s_log1pl.c: Likewise.
* sysdeps/m68k/fpu/e_log2f.c: Likewise.
* sysdeps/m68k/fpu/mpa.c: Likewise.
* sysdeps/m68k/fpu/t_exp.c: Likewise.
* sysdeps/m68k/fpu/e_acos.c: Likewise.
* sysdeps/m68k/fpu/s_expm1l.c: Likewise.
* sysdeps/m68k/fpu/s_ccoshl.c: Likewise.
* sysdeps/m68k/fpu/s_sinf.c: Likewise.
* sysdeps/m68k/fpu/k_tan.c: Likewise.
* sysdeps/m68k/fpu/k_cosl.c: Likewise.
* sysdeps/m68k/fpu/e_remainder.c: Likewise.
* sysdeps/m68k/fpu/s_trunc.c: Likewise.
* sysdeps/m68k/fpu/s_sincos.c: Likewise.
* sysdeps/m68k/fpu/s_scalbnl.c: Likewise.
* sysdeps/m68k/fpu/s_finitef.c: Likewise.
* sysdeps/m68k/fpu/s_tanhl.c: Likewise.
* sysdeps/m68k/fpu/s_lrintl.c: Likewise.
* sysdeps/m68k/fpu/slowpow.c: Likewise.
* sysdeps/m68k/fpu/mpexp.c: Likewise.
* sysdeps/m68k/fpu/s_isnanl.c: Likewise.
* sysdeps/m68k/fpu/e_expf.c: Likewise.
* sysdeps/m68k/fpu/s_significand.c: Likewise.
* sysdeps/m68k/fpu/e_sinhf.c: Likewise.
* sysdeps/m68k/fpu/s_tanl.c: Likewise.
* sysdeps/m68k/fpu/s_tanhf.c: Likewise.
* sysdeps/m68k/fpu/s_cexp.c: Likewise.
* sysdeps/m68k/fpu/e_sqrtf.c: Likewise.
* sysdeps/m68k/fpu/s_isinf.c: Likewise.
* sysdeps/m68k/fpu/s_nearbyint.c: Likewise.
* sysdeps/m68k/fpu/e_fmod.c: Likewise.
* sysdeps/m68k/fpu/sincos32.c: Likewise.
* sysdeps/m68k/fpu/e_sqrtl.c: Likewise.
* sysdeps/m68k/fpu/s_sincosl.c: Likewise.
* sysdeps/m68k/fpu/e_atan2f.c: Likewise.
* sysdeps/m68k/fpu/s_nearbyintf.c: Likewise.
* sysdeps/m68k/fpu/e_fmodl.c: Likewise.
* sysdeps/m68k/fpu/e_coshf.c: Likewise.
* sysdeps/m68k/fpu/s_csinf.c: Likewise.
* sysdeps/m68k/fpu/s_ccosl.c: Likewise.
* sysdeps/m68k/fpu/e_sqrt.c: Likewise.
* sysdeps/m68k/fpu/s_sin.c: Likewise.
* sysdeps/m68k/fpu/e_asin.c: Likewise.
* sysdeps/m68k/fpu/mptan.c: Likewise.
* sysdeps/m68k/fpu/e_exp10f.c: Likewise.
* sysdeps/m68k/fpu/e_scalb.c: Likewise.
* sysdeps/m68k/fpu/s_finitel.c: Likewise.
* sysdeps/m68k/fpu/e_log10.c: Likewise.
* sysdeps/m68k/fpu/k_sinl.c: Likewise.
* sysdeps/m68k/fpu/e_remainderl.c: Likewise.
* sysdeps/m68k/fpu/s_remquol.c: Likewise.
* sysdeps/m68k/fpu/s_scalblnf.c: Likewise.
* sysdeps/m68k/fpu/s_llrint.c: Likewise.
* sysdeps/m68k/fpu/e_rem_pio2.c: Likewise.
* sysdeps/m68k/fpu/e_asinl.c: Likewise.
* sysdeps/m68k/fpu/e_logl.c: Likewise.
* sysdeps/m68k/fpu/s_cosf.c: Likewise.
* sysdeps/m68k/fpu/s_rint.c: Likewise.
* sysdeps/m68k/fpu/s_ceill.c: Likewise.
* sysdeps/m68k/fpu/s_modfl.c: Likewise.
* sysdeps/m68k/fpu/s_csinl.c: Likewise.
* sysdeps/m68k/fpu/s_tan.c: Likewise.
* sysdeps/m68k/fpu/s_sincosf.c: Likewise.
* sysdeps/m68k/fpu/dosincos.c: Likewise.
* sysdeps/m68k/fpu/e_powl.c: Likewise.
* sysdeps/m68k/fpu/s_ilogb.c: Likewise.
* sysdeps/m68k/fpu/s_llrintl.c: Likewise.
* sysdeps/m68k/fpu/e_expl.c: Likewise.
* sysdeps/m68k/fpu/libm-test-ulps: Likewise.
* sysdeps/m68k/fpu/s_tanf.c: Likewise.
* sysdeps/m68k/fpu/mpsqrt.c: Likewise.
* sysdeps/m68k/fpu/s_sinl.c: Likewise.
* sysdeps/m68k/fpu/mathimpl.h: Likewise.
* sysdeps/m68k/fpu/e_acosl.c: Likewise.
* sysdeps/m68k/fpu/e_cosh.c: Likewise.
* sysdeps/m68k/fpu/s_cexpl.c: Likewise.
* sysdeps/m68k/fpu/s_fabsl.c: Likewise.
* sysdeps/m68k/fpu/halfulp.c: Likewise.
* sysdeps/m68k/fpu/s_modff.c: Likewise.
* sysdeps/m68k/fpu/s_isnan.c: Likewise.
* sysdeps/m68k/fpu/e_atan2.c: Likewise.
* sysdeps/m68k/fpu/s_fabs.c: Likewise.
* sysdeps/m68k/fpu/e_log10f.c: Likewise.
* sysdeps/m68k/fpu/k_cosf.c: Likewise.
* sysdeps/m68k/fpu/e_sinh.c: Likewise.
* sysdeps/m68k/fpu/s_truncf.c: Likewise.
* sysdeps/m68k/fpu/s_ceil.c: Likewise.
* sysdeps/m68k/fpu/s_log1pf.c: Likewise.
* sysdeps/m68k/fpu/e_logf.c: Likewise.
* sysdeps/m68k/fpu/mpatan.c: Likewise.
* sysdeps/m68k/fpu/s_csin.c: Likewise.
* sysdeps/m68k/fpu/e_exp2l.c: Likewise.
* sysdeps/m68k/fpu/e_sinhl.c: Likewise.
* sysdeps/m68k/fpu/e_atan2l.c: Likewise.
* sysdeps/m68k/fpu/s_scalbn.c: Likewise.
* sysdeps/m68k/fpu/s_floorf.c: Likewise.
* sysdeps/m68k/fpu/e_log2l.c: Likewise.
* sysdeps/m68k/fpu/s_atanl.c: Likewise.
* sysdeps/m68k/fpu/s_llrintf.c: Likewise.
* sysdeps/m68k/fpu/k_sinf.c: Likewise.
* sysdeps/m68k/fpu/s_csinhf.c: Likewise.
* sysdeps/m68k/fpu/s_frexp.c: Likewise.
* sysdeps/m68k/fpu/s_atanf.c: Likewise.
* sysdeps/m68k/fpu/s_floor.c: Likewise.
* sysdeps/m68k/fpu/e_exp10l.c: Likewise.
* sysdeps/m68k/fpu/doasin.c: Likewise.
* sysdeps/m68k/fpu/s_rintl.c: Likewise.
* sysdeps/m68k/fpu/e_atanhl.c: Likewise.
* sysdeps/m68k/fpu/e_remainderf.c: Likewise.
* sysdeps/m68k/fpu/s_scalbln.c: Likewise.
* sysdeps/m68k/fpu/e_rem_pio2l.c: Likewise.
* sysdeps/m68k/fpu/e_exp10.c: Likewise.
* sysdeps/m68k/fpu/s_lrintf.c: Likewise.
* sysdeps/m68k/fpu/k_cos.c: Likewise.
* sysdeps/m68k/fpu/s_lrint.c: Likewise.
* sysdeps/m68k/fpu/s_ccosf.c: Likewise.
* sysdeps/m68k/fpu/s_scalblnl.c: Likewise.
* sysdeps/m68k/fpu/switch/Makefile: Likewise.
* sysdeps/m68k/fpu/switch/switch.c: Likewise.
* sysdeps/m68k/fpu/switch/68881-sw.h: Likewise.
* sysdeps/m68k/fpu/switch/bits/mathinline.h: Likewise.
* sysdeps/m68k/fpu/e_log.c: Likewise.
* sysdeps/m68k/fpu/s_nextafterl.c: Likewise.
* sysdeps/m68k/fpu/s_nearbyintl.c: Likewise.
* sysdeps/m68k/fpu/mpatan2.c: Likewise.
* sysdeps/m68k/fpu/k_sin.c: Likewise.
* sysdeps/m68k/fpu/e_atanh.c: Likewise.
* sysdeps/m68k/fpu/s_remquo.c: Likewise.
* sysdeps/m68k/fpu/e_log10l.c: Likewise.
* sysdeps/m68k/fpu/s_ceilf.c: Likewise.
* sysdeps/m68k/fpu/s_fabsf.c: Likewise.
* sysdeps/m68k/fpu/s_significandl.c: Likewise.
* sysdeps/m68k/fpu/s_ccosh.c: Likewise.
* sysdeps/m68k/fpu/e_coshl.c: Likewise.
* sysdeps/m68k/fpu/s_scalbnf.c: Likewise.
* sysdeps/m68k/fpu/s_finite.c: Likewise.
* sysdeps/m68k/fpu/e_exp2f.c: Likewise.
* sysdeps/m68k/fpu/k_rem_pio2f.c: Likewise.
* sysdeps/m68k/fpu/s_isinfl.c: Likewise.
* sysdeps/m68k/fpu/bits/mathinline.h: Likewise.
* sysdeps/m68k/fpu/e_powf.c: Likewise.
* sysdeps/m68k/rshift.S: Likewise.
* sysdeps/m68k/lshift.S: Likewise.
* sysdeps/m68k/strtold_l.c: Likewise.
* sysdeps/m68k/printf_fphex.c: Likewise.
* sysdeps/m68k/s_isinfl.c: Likewise.
* sysdeps/m68k/bits/huge_vall.h: Likewise.
* sysdeps/m68k/asm-syntax.h (andw, andl, subqw, tstw, tstl): New.
* sysdeps/m68k/bits/byteswap.h (__bswap32): Don't define for
Coldfire targets.
* sysdeps/m68k/bits/setjmp.h (__jmp_buf): Add a 64-byte
__fpregs field for Coldfire FPUs.
* sysdeps/m68k/dl-machine.h: Include sysdep.h.
(elf_machine_load_address): Use PCREL_OP.
(_dl_start_user): Likewise.
* sysdeps/m68k/dl-trampoline.S (_dl_runtime_resolve): Avoid jmp (%dN)
on Coldfire; push the target address and use rts instead.
(_dl_runtime_profile): Likewise. Round up the frame size to longword
rather than word alignment. Avoid dbra on Coldfire. Avoid using
jsr (%d0) on Coldfire; push the return address and target address
and use rts instead. Use fmovem.l rather than fmovem.x on Coldfire.
Add missing initialization of lrv_a0 and restore a0 from it after
calling _dl_call_pltexit. Adjust the stack offsets of later data
accordingly, fixing a previously incorrect offset for the inregs
parameter.
* sysdeps/m68k/fpu/fegetenv.c (__fegetenv): Save the control
registers individually on Coldfire targets.
* sysdeps/m68k/fpu/feholdexcpt.c (feholdexcept): Likewise.
Add missing libm_hidden_def.
* sysdeps/m68k/fpu/fesetenv.c (__fesetenv): Save and restore the
control registers individually on Coldfire targets.
* sysdeps/m68k/fpu/fesetround.c (fesetround): Add missing
libm_hidden_def.
* sysdeps/m68k/fpu_control.h: Add the Coldfire bit assignments to
the main comment.
(_FPU_DOUBLE): Define to 0 for Coldfire.
(_FPU_EXTENDED): Don't define for Coldfire.
(_FPU_RESERVED): Include bit 15 for Coldfire.
* sysdeps/m68k/Implies: Remove ieee754/ldbl-96.
* sysdeps/m68k/m680x0/Implies: Add it to this new file instead.
* sysdeps/m68k/ldsodefs.h: New file.
* sysdeps/m68k/__longjmp.c (__longjmp): Restore the floating-point
registers when using a Coldfire FPU.
* sysdeps/m68k/Makefile (long-double-fcts): Delete.
* sysdeps/m68k/m680x0/Makefile: Add it to this new file instead.
* sysdeps/m68k/memchr.S (__memchr): Add Coldfire code. Avoid
unnecessary moves.
* sysdeps/m68k/preconfigure (m680?0): Add "m680x0" to $machine.
(m68k): Use the compiler to decide whether $machine should be
set to m68k/coldfire or m68k/m680x0/m68020.
* sysdeps/m68k/rawmemchr.S (__rawmemchr): Add Coldfire code. Avoid
unnecessary moves.
* sysdeps/m68k/setjmp.c (__sigsetjmp): Save the floating-point
registers when using a Coldfire FPU. Use libc_hidden_def rather
than hidden_def.
* sysdeps/m68k/strchrnul.S (__strchrnul): Add Coldfire code. Avoid
unnecessary moves.
* sysdeps/m68k/strchr.S (strchr): Likewise.
* sysdeps/m68k/sysdep.h (PCREL_OP): Define.
* sysdeps/m68k/tst-audit.h: New file.
* sysdeps/m68k/wcpcpy.c: Likewise.
* sysdeps/m68k/wcpcpy_chk.c: Likewise.
* sysdeps/unix/sysv/linux/m68k/configure.in: New file.
* sysdeps/unix/sysv/linux/m68k/configure: Likewise.
* sysdeps/unix/sysv/linux/m68k/clone.S (__clone): Add Coldfire code.
* sysdeps/unix/sysv/linux/m68k/register-dump.h (real_catch_segfault):
Do not define on Coldfire.
(catch_segfault): Likewise.
(register_dump): Use the Coldfire-specific sigcontext fields to
display call-saved data and address registers (rather than the
data stored in sc_fpstate by real_catch_segfault). Display 8-byte
floating-point registers on Coldfire.
* sysdeps/unix/sysv/linux/m68k/socket.S (__socket): Pass a temporary
register to SINGLE_THREAD_P.
* sysdeps/unix/sysv/linux/m68k/sys/reg.h (PT_FP0): Redefine for
Coldfire.
(PT_FP1, PT_FP2, PT_FP3, PT_FP4, PT_FP5, PT_FP6, PT_FP7): Likewise.
* sysdeps/unix/sysv/linux/m68k/sys/ucontext.h (fpregset): Sync field
order with linux. Make f_fpregs an 8*2 array on Coldfire.
(ucontext): Sync field order with linux.
* sysdeps/unix/sysv/linux/m68k/sysdep.h: Guard against multiple
inclusion.
(SYSCALL_ERROR_HANDLER): Use PCREL_OP.
* sysdeps/unix/sysv/linux/m68k/syscalls.list (oldgetrlimit): Delete.
(oldsetrlimit): Likewise.
* sysdeps/unix/sysv/linux/m68k/m680x0/syscalls.list: New file.
List oldgetrlimit and oldsetrlimit here instead.
* sysdeps/unix/sysv/linux/m68k/bits/sigcontext.h: New file.
* sysdeps/unix/sysv/linux/m68k/bits/siginfo.h: Likewise.
* sysdeps/m68k/coldfire/bits/atomic.h: Likewise.
* sysdeps/m68k/coldfire/fpu/e_sqrt.c: Likewise.
* sysdeps/m68k/coldfire/fpu/e_sqrtf.c: Likewise.
* sysdeps/m68k/coldfire/fpu/fraiseexcpt.c: Likewise.
* sysdeps/m68k/coldfire/fpu/libm-test-ulps: Likewise.
* sysdeps/m68k/coldfire/fpu/s_fabs.c: Likewise.
* sysdeps/m68k/coldfire/fpu/s_fabsf.c: Likewise.
* sysdeps/m68k/coldfire/fpu/s_lrint.c: Likewise.
* sysdeps/m68k/coldfire/fpu/s_lrintf.c: Likewise.
* sysdeps/m68k/coldfire/fpu/s_rint.c: Likewise.
* sysdeps/m68k/coldfire/fpu/s_rintf.c: Likewise.
* sysdeps/m68k/coldfire/shlib-versions: Likewise.
2006-10-03 14:44:27 +00:00
|
|
|
asm (PCREL_OP ("lea", "_dl_start", "%0", "%0", "%%pc") "\n\t"
|
1998-03-04 02:36:01 +00:00
|
|
|
"sub.l _dl_start@GOT.w(%%a5), %0"
|
1996-02-18 18:31:55 +00:00
|
|
|
: "=a" (addr));
|
2017-10-20 10:36:34 +00:00
|
|
|
#else
|
|
|
|
asm (PCREL_OP ("lea", "_dl_relocate_static_pie", "%0", "%0", "%%pc") "\n\t"
|
|
|
|
"sub.l _dl_relocate_static_pie@GOT.w(%%a5), %0"
|
|
|
|
: "=a" (addr));
|
|
|
|
#endif
|
1996-02-18 18:31:55 +00:00
|
|
|
return addr;
|
1996-02-13 09:26:53 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* Set up the loaded object described by L so its unrelocated PLT
|
|
|
|
entries will jump to the on-demand fixup code in dl-runtime.c. */
|
|
|
|
|
2003-01-06 18:10:46 +00:00
|
|
|
static inline int __attribute__ ((always_inline))
|
elf: Avoid nested functions in the loader [BZ #27220]
dynamic-link.h is included more than once in some elf/ files (rtld.c,
dl-conflict.c, dl-reloc.c, dl-reloc-static-pie.c) and uses GCC nested
functions. This harms readability and the nested functions usage
is the biggest obstacle prevents Clang build (Clang doesn't support GCC
nested functions).
The key idea for unnesting is to add extra parameters (struct link_map
*and struct r_scope_elm *[]) to RESOLVE_MAP,
ELF_MACHINE_BEFORE_RTLD_RELOC, ELF_DYNAMIC_RELOCATE, elf_machine_rel[a],
elf_machine_lazy_rel, and elf_machine_runtime_setup. (This is inspired
by Stan Shebs' ppc64/x86-64 implementation in the
google/grte/v5-2.27/master which uses mixed extra parameters and static
variables.)
Future simplification:
* If mips elf_machine_runtime_setup no longer needs RESOLVE_GOTSYM,
elf_machine_runtime_setup can drop the `scope` parameter.
* If TLSDESC no longer need to be in elf_machine_lazy_rel,
elf_machine_lazy_rel can drop the `scope` parameter.
Tested on aarch64, i386, x86-64, powerpc64le, powerpc64, powerpc32,
sparc64, sparcv9, s390x, s390, hppa, ia64, armhf, alpha, and mips64.
In addition, tested build-many-glibcs.py with {arc,csky,microblaze,nios2}-linux-gnu
and riscv64-linux-gnu-rv64imafdc-lp64d.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
(cherry picked from commit 490e6c62aa31a8aa5c4a059f6e646ede121edf0a)
2021-10-07 18:55:02 +00:00
|
|
|
elf_machine_runtime_setup (struct link_map *l, struct r_scope_elem *scope[],
|
|
|
|
int lazy, int profile)
|
1996-02-13 09:26:53 +00:00
|
|
|
{
|
|
|
|
Elf32_Addr *got;
|
|
|
|
extern void _dl_runtime_resolve (Elf32_Word);
|
1997-08-02 20:56:48 +00:00
|
|
|
extern void _dl_runtime_profile (Elf32_Word);
|
1996-02-13 09:26:53 +00:00
|
|
|
|
|
|
|
if (l->l_info[DT_JMPREL] && lazy)
|
|
|
|
{
|
|
|
|
/* The GOT entries for functions in the PLT have not yet been
|
|
|
|
filled in. Their initial contents will arrange when called
|
|
|
|
to push an offset into the .rela.plt section, push
|
|
|
|
_GLOBAL_OFFSET_TABLE_[1], and then jump to
|
|
|
|
_GLOBAL_OFFSET_TABLE_[2]. */
|
2000-03-31 05:16:19 +00:00
|
|
|
got = (Elf32_Addr *) D_PTR (l, l_info[DT_PLTGOT]);
|
1996-02-13 09:26:53 +00:00
|
|
|
got[1] = (Elf32_Addr) l; /* Identify this shared object. */
|
1997-08-02 20:56:48 +00:00
|
|
|
|
|
|
|
/* The got[2] entry contains the address of a function which gets
|
|
|
|
called to get the address of a so far unresolved function and
|
|
|
|
jump to it. The profiling extension of the dynamic linker allows
|
|
|
|
to intercept the calls to collect information. In this case we
|
|
|
|
don't store the address in the GOT so that all future calls also
|
|
|
|
end in this function. */
|
|
|
|
if (profile)
|
|
|
|
{
|
|
|
|
got[2] = (Elf32_Addr) &_dl_runtime_profile;
|
1998-06-10 01:35:06 +00:00
|
|
|
|
2005-01-16 02:07:29 +00:00
|
|
|
if (GLRO(dl_profile) != NULL
|
|
|
|
&& _dl_name_match_p (GLRO(dl_profile), l))
|
1998-06-10 01:35:06 +00:00
|
|
|
{
|
|
|
|
/* This is the object we are looking for. Say that we really
|
|
|
|
want profiling and the timers are started. */
|
2002-02-01 01:32:06 +00:00
|
|
|
GL(dl_profile_map) = l;
|
1998-06-10 01:35:06 +00:00
|
|
|
}
|
1997-08-02 20:56:48 +00:00
|
|
|
}
|
|
|
|
else
|
|
|
|
/* This function will get called to fix up the GOT entry indicated by
|
|
|
|
the offset on the stack, and then jump to the resolved address. */
|
|
|
|
got[2] = (Elf32_Addr) &_dl_runtime_resolve;
|
1996-02-13 09:26:53 +00:00
|
|
|
}
|
|
|
|
|
1997-05-24 02:15:43 +00:00
|
|
|
return lazy;
|
|
|
|
}
|
|
|
|
|
1996-02-18 18:31:55 +00:00
|
|
|
#define ELF_MACHINE_RUNTIME_FIXUP_ARGS long int save_a0, long int save_a1
|
2012-11-15 18:34:31 +00:00
|
|
|
#define ELF_MACHINE_RUNTIME_FIXUP_PARAMS save_a0, save_a1
|
1996-02-13 09:26:53 +00:00
|
|
|
|
|
|
|
|
|
|
|
/* Mask identifying addresses reserved for the user program,
|
|
|
|
where the dynamic linker should not map anything. */
|
|
|
|
#define ELF_MACHINE_USER_ADDRESS_MASK 0x80000000UL
|
|
|
|
|
|
|
|
/* Initial entry point code for the dynamic linker.
|
|
|
|
The C function `_dl_start' is the real entry point;
|
|
|
|
its return value is the user program's entry point. */
|
|
|
|
|
|
|
|
#define RTLD_START asm ("\
|
2002-02-01 10:28:20 +00:00
|
|
|
.text\n\
|
|
|
|
.globl _start\n\
|
|
|
|
.type _start,@function\n\
|
|
|
|
_start:\n\
|
2010-03-12 18:50:55 +00:00
|
|
|
sub.l %fp, %fp\n\
|
2002-02-01 10:28:20 +00:00
|
|
|
move.l %sp, -(%sp)\n\
|
|
|
|
jbsr _dl_start\n\
|
|
|
|
addq.l #4, %sp\n\
|
|
|
|
/* FALLTHRU */\n\
|
|
|
|
\n\
|
|
|
|
.globl _dl_start_user\n\
|
|
|
|
.type _dl_start_user,@function\n\
|
|
|
|
_dl_start_user:\n\
|
|
|
|
| Save the user entry point address in %a4.\n\
|
|
|
|
move.l %d0, %a4\n\
|
|
|
|
| See if we were run as a command with the executable file\n\
|
|
|
|
| name as an extra leading argument.\n\
|
2006-10-03 Richard Sandiford <richard@codesourcery.com>
* sysdeps/m68k/bits/mathdef.h: Moved from sysdeps/m68k to
sysdeps/m68k/m680x0.
* sysdeps/m68k/m68020/submul_1.S: Likewise.
* sysdeps/m68k/m68020/Makefile: Likewise.
* sysdeps/m68k/m68020/mul_1.S: Likewise.
* sysdeps/m68k/m68020/wordcopy.S: Likewise.
* sysdeps/m68k/m68020/addmul_1.S: Likewise.
* sysdeps/m68k/m68020/bits/string.h: Likewise.
* sysdeps/m68k/m68020/bits/atomic.h: Likewise.
* sysdeps/m68k/sub_n.S: Likewise.
* sysdeps/m68k/add_n.S: Likewise.
* sysdeps/m68k/s_isnanl.c: Likewise.
* sysdeps/m68k/fpu/s_log1p.c: Likewise.
* sysdeps/m68k/fpu/e_asinf.c: Likewise.
* sysdeps/m68k/fpu/s_cosl.c: Likewise.
* sysdeps/m68k/fpu/s_isinff.c: Likewise.
* sysdeps/m68k/fpu/k_rem_pio2.c: Likewise.
* sysdeps/m68k/fpu/s_ccos.c: Likewise.
* sysdeps/m68k/fpu/s_expm1.c: Likewise.
* sysdeps/m68k/fpu/slowexp.c: Likewise.
* sysdeps/m68k/fpu/k_rem_pio2l.c: Likewise.
* sysdeps/m68k/fpu/s_ccoshf.c: Likewise.
* sysdeps/m68k/fpu/s_ilogbl.c: Likewise.
* sysdeps/m68k/fpu/Makefile: Likewise.
* sysdeps/m68k/fpu/s_expm1f.c: Likewise.
* sysdeps/m68k/fpu/s_significandf.c: Likewise.
* sysdeps/m68k/fpu/e_pow.c: Likewise.
* sysdeps/m68k/fpu/s_csinh.c: Likewise.
* sysdeps/m68k/fpu/e_exp.c: Likewise.
* sysdeps/m68k/fpu/s_remquof.c: Likewise.
* sysdeps/m68k/fpu/s_ilogbf.c: Likewise.
* sysdeps/m68k/fpu/s_truncl.c: Likewise.
* sysdeps/m68k/fpu/s_frexpf.c: Likewise.
* sysdeps/m68k/fpu/s_cos.c: Likewise.
* sysdeps/m68k/fpu/fraiseexcpt.c: Likewise.
* sysdeps/m68k/fpu/branred.c: Likewise.
* sysdeps/m68k/fpu/s_frexpl.c: Likewise.
* sysdeps/m68k/fpu/s_atan.c: Likewise.
* sysdeps/m68k/fpu/e_rem_pio2f.c: Likewise.
* sysdeps/m68k/fpu/e_scalbl.c: Likewise.
* sysdeps/m68k/fpu/e_exp2.c: Likewise.
* sysdeps/m68k/fpu/s_cexpf.c: Likewise.
* sysdeps/m68k/fpu/mplog.c: Likewise.
* sysdeps/m68k/fpu/s_rintf.c: Likewise.
* sysdeps/m68k/fpu/s_tanh.c: Likewise.
* sysdeps/m68k/fpu/e_scalbf.c: Likewise.
* sysdeps/m68k/fpu/s_csinhl.c: Likewise.
* sysdeps/m68k/fpu/s_floorl.c: Likewise.
* sysdeps/m68k/fpu/k_tanf.c: Likewise.
* sysdeps/m68k/fpu/k_tanl.c: Likewise.
* sysdeps/m68k/fpu/e_fmodf.c: Likewise.
* sysdeps/m68k/fpu/e_atanhf.c: Likewise.
* sysdeps/m68k/fpu/s_isnanf.c: Likewise.
* sysdeps/m68k/fpu/s_fpclassifyl.c: Likewise.
* sysdeps/m68k/fpu/s_modf.c: Likewise.
* sysdeps/m68k/fpu/e_log2.c: Likewise.
* sysdeps/m68k/fpu/e_acosf.c: Likewise.
* sysdeps/m68k/fpu/s_log1pl.c: Likewise.
* sysdeps/m68k/fpu/e_log2f.c: Likewise.
* sysdeps/m68k/fpu/mpa.c: Likewise.
* sysdeps/m68k/fpu/t_exp.c: Likewise.
* sysdeps/m68k/fpu/e_acos.c: Likewise.
* sysdeps/m68k/fpu/s_expm1l.c: Likewise.
* sysdeps/m68k/fpu/s_ccoshl.c: Likewise.
* sysdeps/m68k/fpu/s_sinf.c: Likewise.
* sysdeps/m68k/fpu/k_tan.c: Likewise.
* sysdeps/m68k/fpu/k_cosl.c: Likewise.
* sysdeps/m68k/fpu/e_remainder.c: Likewise.
* sysdeps/m68k/fpu/s_trunc.c: Likewise.
* sysdeps/m68k/fpu/s_sincos.c: Likewise.
* sysdeps/m68k/fpu/s_scalbnl.c: Likewise.
* sysdeps/m68k/fpu/s_finitef.c: Likewise.
* sysdeps/m68k/fpu/s_tanhl.c: Likewise.
* sysdeps/m68k/fpu/s_lrintl.c: Likewise.
* sysdeps/m68k/fpu/slowpow.c: Likewise.
* sysdeps/m68k/fpu/mpexp.c: Likewise.
* sysdeps/m68k/fpu/s_isnanl.c: Likewise.
* sysdeps/m68k/fpu/e_expf.c: Likewise.
* sysdeps/m68k/fpu/s_significand.c: Likewise.
* sysdeps/m68k/fpu/e_sinhf.c: Likewise.
* sysdeps/m68k/fpu/s_tanl.c: Likewise.
* sysdeps/m68k/fpu/s_tanhf.c: Likewise.
* sysdeps/m68k/fpu/s_cexp.c: Likewise.
* sysdeps/m68k/fpu/e_sqrtf.c: Likewise.
* sysdeps/m68k/fpu/s_isinf.c: Likewise.
* sysdeps/m68k/fpu/s_nearbyint.c: Likewise.
* sysdeps/m68k/fpu/e_fmod.c: Likewise.
* sysdeps/m68k/fpu/sincos32.c: Likewise.
* sysdeps/m68k/fpu/e_sqrtl.c: Likewise.
* sysdeps/m68k/fpu/s_sincosl.c: Likewise.
* sysdeps/m68k/fpu/e_atan2f.c: Likewise.
* sysdeps/m68k/fpu/s_nearbyintf.c: Likewise.
* sysdeps/m68k/fpu/e_fmodl.c: Likewise.
* sysdeps/m68k/fpu/e_coshf.c: Likewise.
* sysdeps/m68k/fpu/s_csinf.c: Likewise.
* sysdeps/m68k/fpu/s_ccosl.c: Likewise.
* sysdeps/m68k/fpu/e_sqrt.c: Likewise.
* sysdeps/m68k/fpu/s_sin.c: Likewise.
* sysdeps/m68k/fpu/e_asin.c: Likewise.
* sysdeps/m68k/fpu/mptan.c: Likewise.
* sysdeps/m68k/fpu/e_exp10f.c: Likewise.
* sysdeps/m68k/fpu/e_scalb.c: Likewise.
* sysdeps/m68k/fpu/s_finitel.c: Likewise.
* sysdeps/m68k/fpu/e_log10.c: Likewise.
* sysdeps/m68k/fpu/k_sinl.c: Likewise.
* sysdeps/m68k/fpu/e_remainderl.c: Likewise.
* sysdeps/m68k/fpu/s_remquol.c: Likewise.
* sysdeps/m68k/fpu/s_scalblnf.c: Likewise.
* sysdeps/m68k/fpu/s_llrint.c: Likewise.
* sysdeps/m68k/fpu/e_rem_pio2.c: Likewise.
* sysdeps/m68k/fpu/e_asinl.c: Likewise.
* sysdeps/m68k/fpu/e_logl.c: Likewise.
* sysdeps/m68k/fpu/s_cosf.c: Likewise.
* sysdeps/m68k/fpu/s_rint.c: Likewise.
* sysdeps/m68k/fpu/s_ceill.c: Likewise.
* sysdeps/m68k/fpu/s_modfl.c: Likewise.
* sysdeps/m68k/fpu/s_csinl.c: Likewise.
* sysdeps/m68k/fpu/s_tan.c: Likewise.
* sysdeps/m68k/fpu/s_sincosf.c: Likewise.
* sysdeps/m68k/fpu/dosincos.c: Likewise.
* sysdeps/m68k/fpu/e_powl.c: Likewise.
* sysdeps/m68k/fpu/s_ilogb.c: Likewise.
* sysdeps/m68k/fpu/s_llrintl.c: Likewise.
* sysdeps/m68k/fpu/e_expl.c: Likewise.
* sysdeps/m68k/fpu/libm-test-ulps: Likewise.
* sysdeps/m68k/fpu/s_tanf.c: Likewise.
* sysdeps/m68k/fpu/mpsqrt.c: Likewise.
* sysdeps/m68k/fpu/s_sinl.c: Likewise.
* sysdeps/m68k/fpu/mathimpl.h: Likewise.
* sysdeps/m68k/fpu/e_acosl.c: Likewise.
* sysdeps/m68k/fpu/e_cosh.c: Likewise.
* sysdeps/m68k/fpu/s_cexpl.c: Likewise.
* sysdeps/m68k/fpu/s_fabsl.c: Likewise.
* sysdeps/m68k/fpu/halfulp.c: Likewise.
* sysdeps/m68k/fpu/s_modff.c: Likewise.
* sysdeps/m68k/fpu/s_isnan.c: Likewise.
* sysdeps/m68k/fpu/e_atan2.c: Likewise.
* sysdeps/m68k/fpu/s_fabs.c: Likewise.
* sysdeps/m68k/fpu/e_log10f.c: Likewise.
* sysdeps/m68k/fpu/k_cosf.c: Likewise.
* sysdeps/m68k/fpu/e_sinh.c: Likewise.
* sysdeps/m68k/fpu/s_truncf.c: Likewise.
* sysdeps/m68k/fpu/s_ceil.c: Likewise.
* sysdeps/m68k/fpu/s_log1pf.c: Likewise.
* sysdeps/m68k/fpu/e_logf.c: Likewise.
* sysdeps/m68k/fpu/mpatan.c: Likewise.
* sysdeps/m68k/fpu/s_csin.c: Likewise.
* sysdeps/m68k/fpu/e_exp2l.c: Likewise.
* sysdeps/m68k/fpu/e_sinhl.c: Likewise.
* sysdeps/m68k/fpu/e_atan2l.c: Likewise.
* sysdeps/m68k/fpu/s_scalbn.c: Likewise.
* sysdeps/m68k/fpu/s_floorf.c: Likewise.
* sysdeps/m68k/fpu/e_log2l.c: Likewise.
* sysdeps/m68k/fpu/s_atanl.c: Likewise.
* sysdeps/m68k/fpu/s_llrintf.c: Likewise.
* sysdeps/m68k/fpu/k_sinf.c: Likewise.
* sysdeps/m68k/fpu/s_csinhf.c: Likewise.
* sysdeps/m68k/fpu/s_frexp.c: Likewise.
* sysdeps/m68k/fpu/s_atanf.c: Likewise.
* sysdeps/m68k/fpu/s_floor.c: Likewise.
* sysdeps/m68k/fpu/e_exp10l.c: Likewise.
* sysdeps/m68k/fpu/doasin.c: Likewise.
* sysdeps/m68k/fpu/s_rintl.c: Likewise.
* sysdeps/m68k/fpu/e_atanhl.c: Likewise.
* sysdeps/m68k/fpu/e_remainderf.c: Likewise.
* sysdeps/m68k/fpu/s_scalbln.c: Likewise.
* sysdeps/m68k/fpu/e_rem_pio2l.c: Likewise.
* sysdeps/m68k/fpu/e_exp10.c: Likewise.
* sysdeps/m68k/fpu/s_lrintf.c: Likewise.
* sysdeps/m68k/fpu/k_cos.c: Likewise.
* sysdeps/m68k/fpu/s_lrint.c: Likewise.
* sysdeps/m68k/fpu/s_ccosf.c: Likewise.
* sysdeps/m68k/fpu/s_scalblnl.c: Likewise.
* sysdeps/m68k/fpu/switch/Makefile: Likewise.
* sysdeps/m68k/fpu/switch/switch.c: Likewise.
* sysdeps/m68k/fpu/switch/68881-sw.h: Likewise.
* sysdeps/m68k/fpu/switch/bits/mathinline.h: Likewise.
* sysdeps/m68k/fpu/e_log.c: Likewise.
* sysdeps/m68k/fpu/s_nextafterl.c: Likewise.
* sysdeps/m68k/fpu/s_nearbyintl.c: Likewise.
* sysdeps/m68k/fpu/mpatan2.c: Likewise.
* sysdeps/m68k/fpu/k_sin.c: Likewise.
* sysdeps/m68k/fpu/e_atanh.c: Likewise.
* sysdeps/m68k/fpu/s_remquo.c: Likewise.
* sysdeps/m68k/fpu/e_log10l.c: Likewise.
* sysdeps/m68k/fpu/s_ceilf.c: Likewise.
* sysdeps/m68k/fpu/s_fabsf.c: Likewise.
* sysdeps/m68k/fpu/s_significandl.c: Likewise.
* sysdeps/m68k/fpu/s_ccosh.c: Likewise.
* sysdeps/m68k/fpu/e_coshl.c: Likewise.
* sysdeps/m68k/fpu/s_scalbnf.c: Likewise.
* sysdeps/m68k/fpu/s_finite.c: Likewise.
* sysdeps/m68k/fpu/e_exp2f.c: Likewise.
* sysdeps/m68k/fpu/k_rem_pio2f.c: Likewise.
* sysdeps/m68k/fpu/s_isinfl.c: Likewise.
* sysdeps/m68k/fpu/bits/mathinline.h: Likewise.
* sysdeps/m68k/fpu/e_powf.c: Likewise.
* sysdeps/m68k/rshift.S: Likewise.
* sysdeps/m68k/lshift.S: Likewise.
* sysdeps/m68k/strtold_l.c: Likewise.
* sysdeps/m68k/printf_fphex.c: Likewise.
* sysdeps/m68k/s_isinfl.c: Likewise.
* sysdeps/m68k/bits/huge_vall.h: Likewise.
* sysdeps/m68k/asm-syntax.h (andw, andl, subqw, tstw, tstl): New.
* sysdeps/m68k/bits/byteswap.h (__bswap32): Don't define for
Coldfire targets.
* sysdeps/m68k/bits/setjmp.h (__jmp_buf): Add a 64-byte
__fpregs field for Coldfire FPUs.
* sysdeps/m68k/dl-machine.h: Include sysdep.h.
(elf_machine_load_address): Use PCREL_OP.
(_dl_start_user): Likewise.
* sysdeps/m68k/dl-trampoline.S (_dl_runtime_resolve): Avoid jmp (%dN)
on Coldfire; push the target address and use rts instead.
(_dl_runtime_profile): Likewise. Round up the frame size to longword
rather than word alignment. Avoid dbra on Coldfire. Avoid using
jsr (%d0) on Coldfire; push the return address and target address
and use rts instead. Use fmovem.l rather than fmovem.x on Coldfire.
Add missing initialization of lrv_a0 and restore a0 from it after
calling _dl_call_pltexit. Adjust the stack offsets of later data
accordingly, fixing a previously incorrect offset for the inregs
parameter.
* sysdeps/m68k/fpu/fegetenv.c (__fegetenv): Save the control
registers individually on Coldfire targets.
* sysdeps/m68k/fpu/feholdexcpt.c (feholdexcept): Likewise.
Add missing libm_hidden_def.
* sysdeps/m68k/fpu/fesetenv.c (__fesetenv): Save and restore the
control registers individually on Coldfire targets.
* sysdeps/m68k/fpu/fesetround.c (fesetround): Add missing
libm_hidden_def.
* sysdeps/m68k/fpu_control.h: Add the Coldfire bit assignments to
the main comment.
(_FPU_DOUBLE): Define to 0 for Coldfire.
(_FPU_EXTENDED): Don't define for Coldfire.
(_FPU_RESERVED): Include bit 15 for Coldfire.
* sysdeps/m68k/Implies: Remove ieee754/ldbl-96.
* sysdeps/m68k/m680x0/Implies: Add it to this new file instead.
* sysdeps/m68k/ldsodefs.h: New file.
* sysdeps/m68k/__longjmp.c (__longjmp): Restore the floating-point
registers when using a Coldfire FPU.
* sysdeps/m68k/Makefile (long-double-fcts): Delete.
* sysdeps/m68k/m680x0/Makefile: Add it to this new file instead.
* sysdeps/m68k/memchr.S (__memchr): Add Coldfire code. Avoid
unnecessary moves.
* sysdeps/m68k/preconfigure (m680?0): Add "m680x0" to $machine.
(m68k): Use the compiler to decide whether $machine should be
set to m68k/coldfire or m68k/m680x0/m68020.
* sysdeps/m68k/rawmemchr.S (__rawmemchr): Add Coldfire code. Avoid
unnecessary moves.
* sysdeps/m68k/setjmp.c (__sigsetjmp): Save the floating-point
registers when using a Coldfire FPU. Use libc_hidden_def rather
than hidden_def.
* sysdeps/m68k/strchrnul.S (__strchrnul): Add Coldfire code. Avoid
unnecessary moves.
* sysdeps/m68k/strchr.S (strchr): Likewise.
* sysdeps/m68k/sysdep.h (PCREL_OP): Define.
* sysdeps/m68k/tst-audit.h: New file.
* sysdeps/m68k/wcpcpy.c: Likewise.
* sysdeps/m68k/wcpcpy_chk.c: Likewise.
* sysdeps/unix/sysv/linux/m68k/configure.in: New file.
* sysdeps/unix/sysv/linux/m68k/configure: Likewise.
* sysdeps/unix/sysv/linux/m68k/clone.S (__clone): Add Coldfire code.
* sysdeps/unix/sysv/linux/m68k/register-dump.h (real_catch_segfault):
Do not define on Coldfire.
(catch_segfault): Likewise.
(register_dump): Use the Coldfire-specific sigcontext fields to
display call-saved data and address registers (rather than the
data stored in sc_fpstate by real_catch_segfault). Display 8-byte
floating-point registers on Coldfire.
* sysdeps/unix/sysv/linux/m68k/socket.S (__socket): Pass a temporary
register to SINGLE_THREAD_P.
* sysdeps/unix/sysv/linux/m68k/sys/reg.h (PT_FP0): Redefine for
Coldfire.
(PT_FP1, PT_FP2, PT_FP3, PT_FP4, PT_FP5, PT_FP6, PT_FP7): Likewise.
* sysdeps/unix/sysv/linux/m68k/sys/ucontext.h (fpregset): Sync field
order with linux. Make f_fpregs an 8*2 array on Coldfire.
(ucontext): Sync field order with linux.
* sysdeps/unix/sysv/linux/m68k/sysdep.h: Guard against multiple
inclusion.
(SYSCALL_ERROR_HANDLER): Use PCREL_OP.
* sysdeps/unix/sysv/linux/m68k/syscalls.list (oldgetrlimit): Delete.
(oldsetrlimit): Likewise.
* sysdeps/unix/sysv/linux/m68k/m680x0/syscalls.list: New file.
List oldgetrlimit and oldsetrlimit here instead.
* sysdeps/unix/sysv/linux/m68k/bits/sigcontext.h: New file.
* sysdeps/unix/sysv/linux/m68k/bits/siginfo.h: Likewise.
* sysdeps/m68k/coldfire/bits/atomic.h: Likewise.
* sysdeps/m68k/coldfire/fpu/e_sqrt.c: Likewise.
* sysdeps/m68k/coldfire/fpu/e_sqrtf.c: Likewise.
* sysdeps/m68k/coldfire/fpu/fraiseexcpt.c: Likewise.
* sysdeps/m68k/coldfire/fpu/libm-test-ulps: Likewise.
* sysdeps/m68k/coldfire/fpu/s_fabs.c: Likewise.
* sysdeps/m68k/coldfire/fpu/s_fabsf.c: Likewise.
* sysdeps/m68k/coldfire/fpu/s_lrint.c: Likewise.
* sysdeps/m68k/coldfire/fpu/s_lrintf.c: Likewise.
* sysdeps/m68k/coldfire/fpu/s_rint.c: Likewise.
* sysdeps/m68k/coldfire/fpu/s_rintf.c: Likewise.
* sysdeps/m68k/coldfire/shlib-versions: Likewise.
2006-10-03 14:44:27 +00:00
|
|
|
" PCREL_OP ("move.l", "_dl_skip_args", "%d0", "%d0", "%pc") "\n\
|
2002-02-01 10:28:20 +00:00
|
|
|
| Pop the original argument count\n\
|
|
|
|
move.l (%sp)+, %d1\n\
|
|
|
|
| Subtract _dl_skip_args from it.\n\
|
|
|
|
sub.l %d0, %d1\n\
|
|
|
|
| Adjust the stack pointer to skip _dl_skip_args words.\n\
|
|
|
|
lea (%sp, %d0*4), %sp\n\
|
|
|
|
| Push back the modified argument count.\n\
|
|
|
|
move.l %d1, -(%sp)\n\
|
|
|
|
# Call _dl_init (struct link_map *main_map, int argc, char **argv, char **env)\n\
|
|
|
|
pea 8(%sp, %d1*4)\n\
|
|
|
|
pea 8(%sp)\n\
|
|
|
|
move.l %d1, -(%sp)\n\
|
2006-10-03 Richard Sandiford <richard@codesourcery.com>
* sysdeps/m68k/bits/mathdef.h: Moved from sysdeps/m68k to
sysdeps/m68k/m680x0.
* sysdeps/m68k/m68020/submul_1.S: Likewise.
* sysdeps/m68k/m68020/Makefile: Likewise.
* sysdeps/m68k/m68020/mul_1.S: Likewise.
* sysdeps/m68k/m68020/wordcopy.S: Likewise.
* sysdeps/m68k/m68020/addmul_1.S: Likewise.
* sysdeps/m68k/m68020/bits/string.h: Likewise.
* sysdeps/m68k/m68020/bits/atomic.h: Likewise.
* sysdeps/m68k/sub_n.S: Likewise.
* sysdeps/m68k/add_n.S: Likewise.
* sysdeps/m68k/s_isnanl.c: Likewise.
* sysdeps/m68k/fpu/s_log1p.c: Likewise.
* sysdeps/m68k/fpu/e_asinf.c: Likewise.
* sysdeps/m68k/fpu/s_cosl.c: Likewise.
* sysdeps/m68k/fpu/s_isinff.c: Likewise.
* sysdeps/m68k/fpu/k_rem_pio2.c: Likewise.
* sysdeps/m68k/fpu/s_ccos.c: Likewise.
* sysdeps/m68k/fpu/s_expm1.c: Likewise.
* sysdeps/m68k/fpu/slowexp.c: Likewise.
* sysdeps/m68k/fpu/k_rem_pio2l.c: Likewise.
* sysdeps/m68k/fpu/s_ccoshf.c: Likewise.
* sysdeps/m68k/fpu/s_ilogbl.c: Likewise.
* sysdeps/m68k/fpu/Makefile: Likewise.
* sysdeps/m68k/fpu/s_expm1f.c: Likewise.
* sysdeps/m68k/fpu/s_significandf.c: Likewise.
* sysdeps/m68k/fpu/e_pow.c: Likewise.
* sysdeps/m68k/fpu/s_csinh.c: Likewise.
* sysdeps/m68k/fpu/e_exp.c: Likewise.
* sysdeps/m68k/fpu/s_remquof.c: Likewise.
* sysdeps/m68k/fpu/s_ilogbf.c: Likewise.
* sysdeps/m68k/fpu/s_truncl.c: Likewise.
* sysdeps/m68k/fpu/s_frexpf.c: Likewise.
* sysdeps/m68k/fpu/s_cos.c: Likewise.
* sysdeps/m68k/fpu/fraiseexcpt.c: Likewise.
* sysdeps/m68k/fpu/branred.c: Likewise.
* sysdeps/m68k/fpu/s_frexpl.c: Likewise.
* sysdeps/m68k/fpu/s_atan.c: Likewise.
* sysdeps/m68k/fpu/e_rem_pio2f.c: Likewise.
* sysdeps/m68k/fpu/e_scalbl.c: Likewise.
* sysdeps/m68k/fpu/e_exp2.c: Likewise.
* sysdeps/m68k/fpu/s_cexpf.c: Likewise.
* sysdeps/m68k/fpu/mplog.c: Likewise.
* sysdeps/m68k/fpu/s_rintf.c: Likewise.
* sysdeps/m68k/fpu/s_tanh.c: Likewise.
* sysdeps/m68k/fpu/e_scalbf.c: Likewise.
* sysdeps/m68k/fpu/s_csinhl.c: Likewise.
* sysdeps/m68k/fpu/s_floorl.c: Likewise.
* sysdeps/m68k/fpu/k_tanf.c: Likewise.
* sysdeps/m68k/fpu/k_tanl.c: Likewise.
* sysdeps/m68k/fpu/e_fmodf.c: Likewise.
* sysdeps/m68k/fpu/e_atanhf.c: Likewise.
* sysdeps/m68k/fpu/s_isnanf.c: Likewise.
* sysdeps/m68k/fpu/s_fpclassifyl.c: Likewise.
* sysdeps/m68k/fpu/s_modf.c: Likewise.
* sysdeps/m68k/fpu/e_log2.c: Likewise.
* sysdeps/m68k/fpu/e_acosf.c: Likewise.
* sysdeps/m68k/fpu/s_log1pl.c: Likewise.
* sysdeps/m68k/fpu/e_log2f.c: Likewise.
* sysdeps/m68k/fpu/mpa.c: Likewise.
* sysdeps/m68k/fpu/t_exp.c: Likewise.
* sysdeps/m68k/fpu/e_acos.c: Likewise.
* sysdeps/m68k/fpu/s_expm1l.c: Likewise.
* sysdeps/m68k/fpu/s_ccoshl.c: Likewise.
* sysdeps/m68k/fpu/s_sinf.c: Likewise.
* sysdeps/m68k/fpu/k_tan.c: Likewise.
* sysdeps/m68k/fpu/k_cosl.c: Likewise.
* sysdeps/m68k/fpu/e_remainder.c: Likewise.
* sysdeps/m68k/fpu/s_trunc.c: Likewise.
* sysdeps/m68k/fpu/s_sincos.c: Likewise.
* sysdeps/m68k/fpu/s_scalbnl.c: Likewise.
* sysdeps/m68k/fpu/s_finitef.c: Likewise.
* sysdeps/m68k/fpu/s_tanhl.c: Likewise.
* sysdeps/m68k/fpu/s_lrintl.c: Likewise.
* sysdeps/m68k/fpu/slowpow.c: Likewise.
* sysdeps/m68k/fpu/mpexp.c: Likewise.
* sysdeps/m68k/fpu/s_isnanl.c: Likewise.
* sysdeps/m68k/fpu/e_expf.c: Likewise.
* sysdeps/m68k/fpu/s_significand.c: Likewise.
* sysdeps/m68k/fpu/e_sinhf.c: Likewise.
* sysdeps/m68k/fpu/s_tanl.c: Likewise.
* sysdeps/m68k/fpu/s_tanhf.c: Likewise.
* sysdeps/m68k/fpu/s_cexp.c: Likewise.
* sysdeps/m68k/fpu/e_sqrtf.c: Likewise.
* sysdeps/m68k/fpu/s_isinf.c: Likewise.
* sysdeps/m68k/fpu/s_nearbyint.c: Likewise.
* sysdeps/m68k/fpu/e_fmod.c: Likewise.
* sysdeps/m68k/fpu/sincos32.c: Likewise.
* sysdeps/m68k/fpu/e_sqrtl.c: Likewise.
* sysdeps/m68k/fpu/s_sincosl.c: Likewise.
* sysdeps/m68k/fpu/e_atan2f.c: Likewise.
* sysdeps/m68k/fpu/s_nearbyintf.c: Likewise.
* sysdeps/m68k/fpu/e_fmodl.c: Likewise.
* sysdeps/m68k/fpu/e_coshf.c: Likewise.
* sysdeps/m68k/fpu/s_csinf.c: Likewise.
* sysdeps/m68k/fpu/s_ccosl.c: Likewise.
* sysdeps/m68k/fpu/e_sqrt.c: Likewise.
* sysdeps/m68k/fpu/s_sin.c: Likewise.
* sysdeps/m68k/fpu/e_asin.c: Likewise.
* sysdeps/m68k/fpu/mptan.c: Likewise.
* sysdeps/m68k/fpu/e_exp10f.c: Likewise.
* sysdeps/m68k/fpu/e_scalb.c: Likewise.
* sysdeps/m68k/fpu/s_finitel.c: Likewise.
* sysdeps/m68k/fpu/e_log10.c: Likewise.
* sysdeps/m68k/fpu/k_sinl.c: Likewise.
* sysdeps/m68k/fpu/e_remainderl.c: Likewise.
* sysdeps/m68k/fpu/s_remquol.c: Likewise.
* sysdeps/m68k/fpu/s_scalblnf.c: Likewise.
* sysdeps/m68k/fpu/s_llrint.c: Likewise.
* sysdeps/m68k/fpu/e_rem_pio2.c: Likewise.
* sysdeps/m68k/fpu/e_asinl.c: Likewise.
* sysdeps/m68k/fpu/e_logl.c: Likewise.
* sysdeps/m68k/fpu/s_cosf.c: Likewise.
* sysdeps/m68k/fpu/s_rint.c: Likewise.
* sysdeps/m68k/fpu/s_ceill.c: Likewise.
* sysdeps/m68k/fpu/s_modfl.c: Likewise.
* sysdeps/m68k/fpu/s_csinl.c: Likewise.
* sysdeps/m68k/fpu/s_tan.c: Likewise.
* sysdeps/m68k/fpu/s_sincosf.c: Likewise.
* sysdeps/m68k/fpu/dosincos.c: Likewise.
* sysdeps/m68k/fpu/e_powl.c: Likewise.
* sysdeps/m68k/fpu/s_ilogb.c: Likewise.
* sysdeps/m68k/fpu/s_llrintl.c: Likewise.
* sysdeps/m68k/fpu/e_expl.c: Likewise.
* sysdeps/m68k/fpu/libm-test-ulps: Likewise.
* sysdeps/m68k/fpu/s_tanf.c: Likewise.
* sysdeps/m68k/fpu/mpsqrt.c: Likewise.
* sysdeps/m68k/fpu/s_sinl.c: Likewise.
* sysdeps/m68k/fpu/mathimpl.h: Likewise.
* sysdeps/m68k/fpu/e_acosl.c: Likewise.
* sysdeps/m68k/fpu/e_cosh.c: Likewise.
* sysdeps/m68k/fpu/s_cexpl.c: Likewise.
* sysdeps/m68k/fpu/s_fabsl.c: Likewise.
* sysdeps/m68k/fpu/halfulp.c: Likewise.
* sysdeps/m68k/fpu/s_modff.c: Likewise.
* sysdeps/m68k/fpu/s_isnan.c: Likewise.
* sysdeps/m68k/fpu/e_atan2.c: Likewise.
* sysdeps/m68k/fpu/s_fabs.c: Likewise.
* sysdeps/m68k/fpu/e_log10f.c: Likewise.
* sysdeps/m68k/fpu/k_cosf.c: Likewise.
* sysdeps/m68k/fpu/e_sinh.c: Likewise.
* sysdeps/m68k/fpu/s_truncf.c: Likewise.
* sysdeps/m68k/fpu/s_ceil.c: Likewise.
* sysdeps/m68k/fpu/s_log1pf.c: Likewise.
* sysdeps/m68k/fpu/e_logf.c: Likewise.
* sysdeps/m68k/fpu/mpatan.c: Likewise.
* sysdeps/m68k/fpu/s_csin.c: Likewise.
* sysdeps/m68k/fpu/e_exp2l.c: Likewise.
* sysdeps/m68k/fpu/e_sinhl.c: Likewise.
* sysdeps/m68k/fpu/e_atan2l.c: Likewise.
* sysdeps/m68k/fpu/s_scalbn.c: Likewise.
* sysdeps/m68k/fpu/s_floorf.c: Likewise.
* sysdeps/m68k/fpu/e_log2l.c: Likewise.
* sysdeps/m68k/fpu/s_atanl.c: Likewise.
* sysdeps/m68k/fpu/s_llrintf.c: Likewise.
* sysdeps/m68k/fpu/k_sinf.c: Likewise.
* sysdeps/m68k/fpu/s_csinhf.c: Likewise.
* sysdeps/m68k/fpu/s_frexp.c: Likewise.
* sysdeps/m68k/fpu/s_atanf.c: Likewise.
* sysdeps/m68k/fpu/s_floor.c: Likewise.
* sysdeps/m68k/fpu/e_exp10l.c: Likewise.
* sysdeps/m68k/fpu/doasin.c: Likewise.
* sysdeps/m68k/fpu/s_rintl.c: Likewise.
* sysdeps/m68k/fpu/e_atanhl.c: Likewise.
* sysdeps/m68k/fpu/e_remainderf.c: Likewise.
* sysdeps/m68k/fpu/s_scalbln.c: Likewise.
* sysdeps/m68k/fpu/e_rem_pio2l.c: Likewise.
* sysdeps/m68k/fpu/e_exp10.c: Likewise.
* sysdeps/m68k/fpu/s_lrintf.c: Likewise.
* sysdeps/m68k/fpu/k_cos.c: Likewise.
* sysdeps/m68k/fpu/s_lrint.c: Likewise.
* sysdeps/m68k/fpu/s_ccosf.c: Likewise.
* sysdeps/m68k/fpu/s_scalblnl.c: Likewise.
* sysdeps/m68k/fpu/switch/Makefile: Likewise.
* sysdeps/m68k/fpu/switch/switch.c: Likewise.
* sysdeps/m68k/fpu/switch/68881-sw.h: Likewise.
* sysdeps/m68k/fpu/switch/bits/mathinline.h: Likewise.
* sysdeps/m68k/fpu/e_log.c: Likewise.
* sysdeps/m68k/fpu/s_nextafterl.c: Likewise.
* sysdeps/m68k/fpu/s_nearbyintl.c: Likewise.
* sysdeps/m68k/fpu/mpatan2.c: Likewise.
* sysdeps/m68k/fpu/k_sin.c: Likewise.
* sysdeps/m68k/fpu/e_atanh.c: Likewise.
* sysdeps/m68k/fpu/s_remquo.c: Likewise.
* sysdeps/m68k/fpu/e_log10l.c: Likewise.
* sysdeps/m68k/fpu/s_ceilf.c: Likewise.
* sysdeps/m68k/fpu/s_fabsf.c: Likewise.
* sysdeps/m68k/fpu/s_significandl.c: Likewise.
* sysdeps/m68k/fpu/s_ccosh.c: Likewise.
* sysdeps/m68k/fpu/e_coshl.c: Likewise.
* sysdeps/m68k/fpu/s_scalbnf.c: Likewise.
* sysdeps/m68k/fpu/s_finite.c: Likewise.
* sysdeps/m68k/fpu/e_exp2f.c: Likewise.
* sysdeps/m68k/fpu/k_rem_pio2f.c: Likewise.
* sysdeps/m68k/fpu/s_isinfl.c: Likewise.
* sysdeps/m68k/fpu/bits/mathinline.h: Likewise.
* sysdeps/m68k/fpu/e_powf.c: Likewise.
* sysdeps/m68k/rshift.S: Likewise.
* sysdeps/m68k/lshift.S: Likewise.
* sysdeps/m68k/strtold_l.c: Likewise.
* sysdeps/m68k/printf_fphex.c: Likewise.
* sysdeps/m68k/s_isinfl.c: Likewise.
* sysdeps/m68k/bits/huge_vall.h: Likewise.
* sysdeps/m68k/asm-syntax.h (andw, andl, subqw, tstw, tstl): New.
* sysdeps/m68k/bits/byteswap.h (__bswap32): Don't define for
Coldfire targets.
* sysdeps/m68k/bits/setjmp.h (__jmp_buf): Add a 64-byte
__fpregs field for Coldfire FPUs.
* sysdeps/m68k/dl-machine.h: Include sysdep.h.
(elf_machine_load_address): Use PCREL_OP.
(_dl_start_user): Likewise.
* sysdeps/m68k/dl-trampoline.S (_dl_runtime_resolve): Avoid jmp (%dN)
on Coldfire; push the target address and use rts instead.
(_dl_runtime_profile): Likewise. Round up the frame size to longword
rather than word alignment. Avoid dbra on Coldfire. Avoid using
jsr (%d0) on Coldfire; push the return address and target address
and use rts instead. Use fmovem.l rather than fmovem.x on Coldfire.
Add missing initialization of lrv_a0 and restore a0 from it after
calling _dl_call_pltexit. Adjust the stack offsets of later data
accordingly, fixing a previously incorrect offset for the inregs
parameter.
* sysdeps/m68k/fpu/fegetenv.c (__fegetenv): Save the control
registers individually on Coldfire targets.
* sysdeps/m68k/fpu/feholdexcpt.c (feholdexcept): Likewise.
Add missing libm_hidden_def.
* sysdeps/m68k/fpu/fesetenv.c (__fesetenv): Save and restore the
control registers individually on Coldfire targets.
* sysdeps/m68k/fpu/fesetround.c (fesetround): Add missing
libm_hidden_def.
* sysdeps/m68k/fpu_control.h: Add the Coldfire bit assignments to
the main comment.
(_FPU_DOUBLE): Define to 0 for Coldfire.
(_FPU_EXTENDED): Don't define for Coldfire.
(_FPU_RESERVED): Include bit 15 for Coldfire.
* sysdeps/m68k/Implies: Remove ieee754/ldbl-96.
* sysdeps/m68k/m680x0/Implies: Add it to this new file instead.
* sysdeps/m68k/ldsodefs.h: New file.
* sysdeps/m68k/__longjmp.c (__longjmp): Restore the floating-point
registers when using a Coldfire FPU.
* sysdeps/m68k/Makefile (long-double-fcts): Delete.
* sysdeps/m68k/m680x0/Makefile: Add it to this new file instead.
* sysdeps/m68k/memchr.S (__memchr): Add Coldfire code. Avoid
unnecessary moves.
* sysdeps/m68k/preconfigure (m680?0): Add "m680x0" to $machine.
(m68k): Use the compiler to decide whether $machine should be
set to m68k/coldfire or m68k/m680x0/m68020.
* sysdeps/m68k/rawmemchr.S (__rawmemchr): Add Coldfire code. Avoid
unnecessary moves.
* sysdeps/m68k/setjmp.c (__sigsetjmp): Save the floating-point
registers when using a Coldfire FPU. Use libc_hidden_def rather
than hidden_def.
* sysdeps/m68k/strchrnul.S (__strchrnul): Add Coldfire code. Avoid
unnecessary moves.
* sysdeps/m68k/strchr.S (strchr): Likewise.
* sysdeps/m68k/sysdep.h (PCREL_OP): Define.
* sysdeps/m68k/tst-audit.h: New file.
* sysdeps/m68k/wcpcpy.c: Likewise.
* sysdeps/m68k/wcpcpy_chk.c: Likewise.
* sysdeps/unix/sysv/linux/m68k/configure.in: New file.
* sysdeps/unix/sysv/linux/m68k/configure: Likewise.
* sysdeps/unix/sysv/linux/m68k/clone.S (__clone): Add Coldfire code.
* sysdeps/unix/sysv/linux/m68k/register-dump.h (real_catch_segfault):
Do not define on Coldfire.
(catch_segfault): Likewise.
(register_dump): Use the Coldfire-specific sigcontext fields to
display call-saved data and address registers (rather than the
data stored in sc_fpstate by real_catch_segfault). Display 8-byte
floating-point registers on Coldfire.
* sysdeps/unix/sysv/linux/m68k/socket.S (__socket): Pass a temporary
register to SINGLE_THREAD_P.
* sysdeps/unix/sysv/linux/m68k/sys/reg.h (PT_FP0): Redefine for
Coldfire.
(PT_FP1, PT_FP2, PT_FP3, PT_FP4, PT_FP5, PT_FP6, PT_FP7): Likewise.
* sysdeps/unix/sysv/linux/m68k/sys/ucontext.h (fpregset): Sync field
order with linux. Make f_fpregs an 8*2 array on Coldfire.
(ucontext): Sync field order with linux.
* sysdeps/unix/sysv/linux/m68k/sysdep.h: Guard against multiple
inclusion.
(SYSCALL_ERROR_HANDLER): Use PCREL_OP.
* sysdeps/unix/sysv/linux/m68k/syscalls.list (oldgetrlimit): Delete.
(oldsetrlimit): Likewise.
* sysdeps/unix/sysv/linux/m68k/m680x0/syscalls.list: New file.
List oldgetrlimit and oldsetrlimit here instead.
* sysdeps/unix/sysv/linux/m68k/bits/sigcontext.h: New file.
* sysdeps/unix/sysv/linux/m68k/bits/siginfo.h: Likewise.
* sysdeps/m68k/coldfire/bits/atomic.h: Likewise.
* sysdeps/m68k/coldfire/fpu/e_sqrt.c: Likewise.
* sysdeps/m68k/coldfire/fpu/e_sqrtf.c: Likewise.
* sysdeps/m68k/coldfire/fpu/fraiseexcpt.c: Likewise.
* sysdeps/m68k/coldfire/fpu/libm-test-ulps: Likewise.
* sysdeps/m68k/coldfire/fpu/s_fabs.c: Likewise.
* sysdeps/m68k/coldfire/fpu/s_fabsf.c: Likewise.
* sysdeps/m68k/coldfire/fpu/s_lrint.c: Likewise.
* sysdeps/m68k/coldfire/fpu/s_lrintf.c: Likewise.
* sysdeps/m68k/coldfire/fpu/s_rint.c: Likewise.
* sysdeps/m68k/coldfire/fpu/s_rintf.c: Likewise.
* sysdeps/m68k/coldfire/shlib-versions: Likewise.
2006-10-03 14:44:27 +00:00
|
|
|
" PCREL_OP ("move.l", "_rtld_local", "-(%sp)", "%d0", "%pc") "\n\
|
2014-12-21 14:06:27 +00:00
|
|
|
jbsr _dl_init\n\
|
2002-02-01 10:28:20 +00:00
|
|
|
addq.l #8, %sp\n\
|
|
|
|
addq.l #8, %sp\n\
|
|
|
|
| Pass our finalizer function to the user in %a1.\n\
|
2006-10-03 Richard Sandiford <richard@codesourcery.com>
* sysdeps/m68k/bits/mathdef.h: Moved from sysdeps/m68k to
sysdeps/m68k/m680x0.
* sysdeps/m68k/m68020/submul_1.S: Likewise.
* sysdeps/m68k/m68020/Makefile: Likewise.
* sysdeps/m68k/m68020/mul_1.S: Likewise.
* sysdeps/m68k/m68020/wordcopy.S: Likewise.
* sysdeps/m68k/m68020/addmul_1.S: Likewise.
* sysdeps/m68k/m68020/bits/string.h: Likewise.
* sysdeps/m68k/m68020/bits/atomic.h: Likewise.
* sysdeps/m68k/sub_n.S: Likewise.
* sysdeps/m68k/add_n.S: Likewise.
* sysdeps/m68k/s_isnanl.c: Likewise.
* sysdeps/m68k/fpu/s_log1p.c: Likewise.
* sysdeps/m68k/fpu/e_asinf.c: Likewise.
* sysdeps/m68k/fpu/s_cosl.c: Likewise.
* sysdeps/m68k/fpu/s_isinff.c: Likewise.
* sysdeps/m68k/fpu/k_rem_pio2.c: Likewise.
* sysdeps/m68k/fpu/s_ccos.c: Likewise.
* sysdeps/m68k/fpu/s_expm1.c: Likewise.
* sysdeps/m68k/fpu/slowexp.c: Likewise.
* sysdeps/m68k/fpu/k_rem_pio2l.c: Likewise.
* sysdeps/m68k/fpu/s_ccoshf.c: Likewise.
* sysdeps/m68k/fpu/s_ilogbl.c: Likewise.
* sysdeps/m68k/fpu/Makefile: Likewise.
* sysdeps/m68k/fpu/s_expm1f.c: Likewise.
* sysdeps/m68k/fpu/s_significandf.c: Likewise.
* sysdeps/m68k/fpu/e_pow.c: Likewise.
* sysdeps/m68k/fpu/s_csinh.c: Likewise.
* sysdeps/m68k/fpu/e_exp.c: Likewise.
* sysdeps/m68k/fpu/s_remquof.c: Likewise.
* sysdeps/m68k/fpu/s_ilogbf.c: Likewise.
* sysdeps/m68k/fpu/s_truncl.c: Likewise.
* sysdeps/m68k/fpu/s_frexpf.c: Likewise.
* sysdeps/m68k/fpu/s_cos.c: Likewise.
* sysdeps/m68k/fpu/fraiseexcpt.c: Likewise.
* sysdeps/m68k/fpu/branred.c: Likewise.
* sysdeps/m68k/fpu/s_frexpl.c: Likewise.
* sysdeps/m68k/fpu/s_atan.c: Likewise.
* sysdeps/m68k/fpu/e_rem_pio2f.c: Likewise.
* sysdeps/m68k/fpu/e_scalbl.c: Likewise.
* sysdeps/m68k/fpu/e_exp2.c: Likewise.
* sysdeps/m68k/fpu/s_cexpf.c: Likewise.
* sysdeps/m68k/fpu/mplog.c: Likewise.
* sysdeps/m68k/fpu/s_rintf.c: Likewise.
* sysdeps/m68k/fpu/s_tanh.c: Likewise.
* sysdeps/m68k/fpu/e_scalbf.c: Likewise.
* sysdeps/m68k/fpu/s_csinhl.c: Likewise.
* sysdeps/m68k/fpu/s_floorl.c: Likewise.
* sysdeps/m68k/fpu/k_tanf.c: Likewise.
* sysdeps/m68k/fpu/k_tanl.c: Likewise.
* sysdeps/m68k/fpu/e_fmodf.c: Likewise.
* sysdeps/m68k/fpu/e_atanhf.c: Likewise.
* sysdeps/m68k/fpu/s_isnanf.c: Likewise.
* sysdeps/m68k/fpu/s_fpclassifyl.c: Likewise.
* sysdeps/m68k/fpu/s_modf.c: Likewise.
* sysdeps/m68k/fpu/e_log2.c: Likewise.
* sysdeps/m68k/fpu/e_acosf.c: Likewise.
* sysdeps/m68k/fpu/s_log1pl.c: Likewise.
* sysdeps/m68k/fpu/e_log2f.c: Likewise.
* sysdeps/m68k/fpu/mpa.c: Likewise.
* sysdeps/m68k/fpu/t_exp.c: Likewise.
* sysdeps/m68k/fpu/e_acos.c: Likewise.
* sysdeps/m68k/fpu/s_expm1l.c: Likewise.
* sysdeps/m68k/fpu/s_ccoshl.c: Likewise.
* sysdeps/m68k/fpu/s_sinf.c: Likewise.
* sysdeps/m68k/fpu/k_tan.c: Likewise.
* sysdeps/m68k/fpu/k_cosl.c: Likewise.
* sysdeps/m68k/fpu/e_remainder.c: Likewise.
* sysdeps/m68k/fpu/s_trunc.c: Likewise.
* sysdeps/m68k/fpu/s_sincos.c: Likewise.
* sysdeps/m68k/fpu/s_scalbnl.c: Likewise.
* sysdeps/m68k/fpu/s_finitef.c: Likewise.
* sysdeps/m68k/fpu/s_tanhl.c: Likewise.
* sysdeps/m68k/fpu/s_lrintl.c: Likewise.
* sysdeps/m68k/fpu/slowpow.c: Likewise.
* sysdeps/m68k/fpu/mpexp.c: Likewise.
* sysdeps/m68k/fpu/s_isnanl.c: Likewise.
* sysdeps/m68k/fpu/e_expf.c: Likewise.
* sysdeps/m68k/fpu/s_significand.c: Likewise.
* sysdeps/m68k/fpu/e_sinhf.c: Likewise.
* sysdeps/m68k/fpu/s_tanl.c: Likewise.
* sysdeps/m68k/fpu/s_tanhf.c: Likewise.
* sysdeps/m68k/fpu/s_cexp.c: Likewise.
* sysdeps/m68k/fpu/e_sqrtf.c: Likewise.
* sysdeps/m68k/fpu/s_isinf.c: Likewise.
* sysdeps/m68k/fpu/s_nearbyint.c: Likewise.
* sysdeps/m68k/fpu/e_fmod.c: Likewise.
* sysdeps/m68k/fpu/sincos32.c: Likewise.
* sysdeps/m68k/fpu/e_sqrtl.c: Likewise.
* sysdeps/m68k/fpu/s_sincosl.c: Likewise.
* sysdeps/m68k/fpu/e_atan2f.c: Likewise.
* sysdeps/m68k/fpu/s_nearbyintf.c: Likewise.
* sysdeps/m68k/fpu/e_fmodl.c: Likewise.
* sysdeps/m68k/fpu/e_coshf.c: Likewise.
* sysdeps/m68k/fpu/s_csinf.c: Likewise.
* sysdeps/m68k/fpu/s_ccosl.c: Likewise.
* sysdeps/m68k/fpu/e_sqrt.c: Likewise.
* sysdeps/m68k/fpu/s_sin.c: Likewise.
* sysdeps/m68k/fpu/e_asin.c: Likewise.
* sysdeps/m68k/fpu/mptan.c: Likewise.
* sysdeps/m68k/fpu/e_exp10f.c: Likewise.
* sysdeps/m68k/fpu/e_scalb.c: Likewise.
* sysdeps/m68k/fpu/s_finitel.c: Likewise.
* sysdeps/m68k/fpu/e_log10.c: Likewise.
* sysdeps/m68k/fpu/k_sinl.c: Likewise.
* sysdeps/m68k/fpu/e_remainderl.c: Likewise.
* sysdeps/m68k/fpu/s_remquol.c: Likewise.
* sysdeps/m68k/fpu/s_scalblnf.c: Likewise.
* sysdeps/m68k/fpu/s_llrint.c: Likewise.
* sysdeps/m68k/fpu/e_rem_pio2.c: Likewise.
* sysdeps/m68k/fpu/e_asinl.c: Likewise.
* sysdeps/m68k/fpu/e_logl.c: Likewise.
* sysdeps/m68k/fpu/s_cosf.c: Likewise.
* sysdeps/m68k/fpu/s_rint.c: Likewise.
* sysdeps/m68k/fpu/s_ceill.c: Likewise.
* sysdeps/m68k/fpu/s_modfl.c: Likewise.
* sysdeps/m68k/fpu/s_csinl.c: Likewise.
* sysdeps/m68k/fpu/s_tan.c: Likewise.
* sysdeps/m68k/fpu/s_sincosf.c: Likewise.
* sysdeps/m68k/fpu/dosincos.c: Likewise.
* sysdeps/m68k/fpu/e_powl.c: Likewise.
* sysdeps/m68k/fpu/s_ilogb.c: Likewise.
* sysdeps/m68k/fpu/s_llrintl.c: Likewise.
* sysdeps/m68k/fpu/e_expl.c: Likewise.
* sysdeps/m68k/fpu/libm-test-ulps: Likewise.
* sysdeps/m68k/fpu/s_tanf.c: Likewise.
* sysdeps/m68k/fpu/mpsqrt.c: Likewise.
* sysdeps/m68k/fpu/s_sinl.c: Likewise.
* sysdeps/m68k/fpu/mathimpl.h: Likewise.
* sysdeps/m68k/fpu/e_acosl.c: Likewise.
* sysdeps/m68k/fpu/e_cosh.c: Likewise.
* sysdeps/m68k/fpu/s_cexpl.c: Likewise.
* sysdeps/m68k/fpu/s_fabsl.c: Likewise.
* sysdeps/m68k/fpu/halfulp.c: Likewise.
* sysdeps/m68k/fpu/s_modff.c: Likewise.
* sysdeps/m68k/fpu/s_isnan.c: Likewise.
* sysdeps/m68k/fpu/e_atan2.c: Likewise.
* sysdeps/m68k/fpu/s_fabs.c: Likewise.
* sysdeps/m68k/fpu/e_log10f.c: Likewise.
* sysdeps/m68k/fpu/k_cosf.c: Likewise.
* sysdeps/m68k/fpu/e_sinh.c: Likewise.
* sysdeps/m68k/fpu/s_truncf.c: Likewise.
* sysdeps/m68k/fpu/s_ceil.c: Likewise.
* sysdeps/m68k/fpu/s_log1pf.c: Likewise.
* sysdeps/m68k/fpu/e_logf.c: Likewise.
* sysdeps/m68k/fpu/mpatan.c: Likewise.
* sysdeps/m68k/fpu/s_csin.c: Likewise.
* sysdeps/m68k/fpu/e_exp2l.c: Likewise.
* sysdeps/m68k/fpu/e_sinhl.c: Likewise.
* sysdeps/m68k/fpu/e_atan2l.c: Likewise.
* sysdeps/m68k/fpu/s_scalbn.c: Likewise.
* sysdeps/m68k/fpu/s_floorf.c: Likewise.
* sysdeps/m68k/fpu/e_log2l.c: Likewise.
* sysdeps/m68k/fpu/s_atanl.c: Likewise.
* sysdeps/m68k/fpu/s_llrintf.c: Likewise.
* sysdeps/m68k/fpu/k_sinf.c: Likewise.
* sysdeps/m68k/fpu/s_csinhf.c: Likewise.
* sysdeps/m68k/fpu/s_frexp.c: Likewise.
* sysdeps/m68k/fpu/s_atanf.c: Likewise.
* sysdeps/m68k/fpu/s_floor.c: Likewise.
* sysdeps/m68k/fpu/e_exp10l.c: Likewise.
* sysdeps/m68k/fpu/doasin.c: Likewise.
* sysdeps/m68k/fpu/s_rintl.c: Likewise.
* sysdeps/m68k/fpu/e_atanhl.c: Likewise.
* sysdeps/m68k/fpu/e_remainderf.c: Likewise.
* sysdeps/m68k/fpu/s_scalbln.c: Likewise.
* sysdeps/m68k/fpu/e_rem_pio2l.c: Likewise.
* sysdeps/m68k/fpu/e_exp10.c: Likewise.
* sysdeps/m68k/fpu/s_lrintf.c: Likewise.
* sysdeps/m68k/fpu/k_cos.c: Likewise.
* sysdeps/m68k/fpu/s_lrint.c: Likewise.
* sysdeps/m68k/fpu/s_ccosf.c: Likewise.
* sysdeps/m68k/fpu/s_scalblnl.c: Likewise.
* sysdeps/m68k/fpu/switch/Makefile: Likewise.
* sysdeps/m68k/fpu/switch/switch.c: Likewise.
* sysdeps/m68k/fpu/switch/68881-sw.h: Likewise.
* sysdeps/m68k/fpu/switch/bits/mathinline.h: Likewise.
* sysdeps/m68k/fpu/e_log.c: Likewise.
* sysdeps/m68k/fpu/s_nextafterl.c: Likewise.
* sysdeps/m68k/fpu/s_nearbyintl.c: Likewise.
* sysdeps/m68k/fpu/mpatan2.c: Likewise.
* sysdeps/m68k/fpu/k_sin.c: Likewise.
* sysdeps/m68k/fpu/e_atanh.c: Likewise.
* sysdeps/m68k/fpu/s_remquo.c: Likewise.
* sysdeps/m68k/fpu/e_log10l.c: Likewise.
* sysdeps/m68k/fpu/s_ceilf.c: Likewise.
* sysdeps/m68k/fpu/s_fabsf.c: Likewise.
* sysdeps/m68k/fpu/s_significandl.c: Likewise.
* sysdeps/m68k/fpu/s_ccosh.c: Likewise.
* sysdeps/m68k/fpu/e_coshl.c: Likewise.
* sysdeps/m68k/fpu/s_scalbnf.c: Likewise.
* sysdeps/m68k/fpu/s_finite.c: Likewise.
* sysdeps/m68k/fpu/e_exp2f.c: Likewise.
* sysdeps/m68k/fpu/k_rem_pio2f.c: Likewise.
* sysdeps/m68k/fpu/s_isinfl.c: Likewise.
* sysdeps/m68k/fpu/bits/mathinline.h: Likewise.
* sysdeps/m68k/fpu/e_powf.c: Likewise.
* sysdeps/m68k/rshift.S: Likewise.
* sysdeps/m68k/lshift.S: Likewise.
* sysdeps/m68k/strtold_l.c: Likewise.
* sysdeps/m68k/printf_fphex.c: Likewise.
* sysdeps/m68k/s_isinfl.c: Likewise.
* sysdeps/m68k/bits/huge_vall.h: Likewise.
* sysdeps/m68k/asm-syntax.h (andw, andl, subqw, tstw, tstl): New.
* sysdeps/m68k/bits/byteswap.h (__bswap32): Don't define for
Coldfire targets.
* sysdeps/m68k/bits/setjmp.h (__jmp_buf): Add a 64-byte
__fpregs field for Coldfire FPUs.
* sysdeps/m68k/dl-machine.h: Include sysdep.h.
(elf_machine_load_address): Use PCREL_OP.
(_dl_start_user): Likewise.
* sysdeps/m68k/dl-trampoline.S (_dl_runtime_resolve): Avoid jmp (%dN)
on Coldfire; push the target address and use rts instead.
(_dl_runtime_profile): Likewise. Round up the frame size to longword
rather than word alignment. Avoid dbra on Coldfire. Avoid using
jsr (%d0) on Coldfire; push the return address and target address
and use rts instead. Use fmovem.l rather than fmovem.x on Coldfire.
Add missing initialization of lrv_a0 and restore a0 from it after
calling _dl_call_pltexit. Adjust the stack offsets of later data
accordingly, fixing a previously incorrect offset for the inregs
parameter.
* sysdeps/m68k/fpu/fegetenv.c (__fegetenv): Save the control
registers individually on Coldfire targets.
* sysdeps/m68k/fpu/feholdexcpt.c (feholdexcept): Likewise.
Add missing libm_hidden_def.
* sysdeps/m68k/fpu/fesetenv.c (__fesetenv): Save and restore the
control registers individually on Coldfire targets.
* sysdeps/m68k/fpu/fesetround.c (fesetround): Add missing
libm_hidden_def.
* sysdeps/m68k/fpu_control.h: Add the Coldfire bit assignments to
the main comment.
(_FPU_DOUBLE): Define to 0 for Coldfire.
(_FPU_EXTENDED): Don't define for Coldfire.
(_FPU_RESERVED): Include bit 15 for Coldfire.
* sysdeps/m68k/Implies: Remove ieee754/ldbl-96.
* sysdeps/m68k/m680x0/Implies: Add it to this new file instead.
* sysdeps/m68k/ldsodefs.h: New file.
* sysdeps/m68k/__longjmp.c (__longjmp): Restore the floating-point
registers when using a Coldfire FPU.
* sysdeps/m68k/Makefile (long-double-fcts): Delete.
* sysdeps/m68k/m680x0/Makefile: Add it to this new file instead.
* sysdeps/m68k/memchr.S (__memchr): Add Coldfire code. Avoid
unnecessary moves.
* sysdeps/m68k/preconfigure (m680?0): Add "m680x0" to $machine.
(m68k): Use the compiler to decide whether $machine should be
set to m68k/coldfire or m68k/m680x0/m68020.
* sysdeps/m68k/rawmemchr.S (__rawmemchr): Add Coldfire code. Avoid
unnecessary moves.
* sysdeps/m68k/setjmp.c (__sigsetjmp): Save the floating-point
registers when using a Coldfire FPU. Use libc_hidden_def rather
than hidden_def.
* sysdeps/m68k/strchrnul.S (__strchrnul): Add Coldfire code. Avoid
unnecessary moves.
* sysdeps/m68k/strchr.S (strchr): Likewise.
* sysdeps/m68k/sysdep.h (PCREL_OP): Define.
* sysdeps/m68k/tst-audit.h: New file.
* sysdeps/m68k/wcpcpy.c: Likewise.
* sysdeps/m68k/wcpcpy_chk.c: Likewise.
* sysdeps/unix/sysv/linux/m68k/configure.in: New file.
* sysdeps/unix/sysv/linux/m68k/configure: Likewise.
* sysdeps/unix/sysv/linux/m68k/clone.S (__clone): Add Coldfire code.
* sysdeps/unix/sysv/linux/m68k/register-dump.h (real_catch_segfault):
Do not define on Coldfire.
(catch_segfault): Likewise.
(register_dump): Use the Coldfire-specific sigcontext fields to
display call-saved data and address registers (rather than the
data stored in sc_fpstate by real_catch_segfault). Display 8-byte
floating-point registers on Coldfire.
* sysdeps/unix/sysv/linux/m68k/socket.S (__socket): Pass a temporary
register to SINGLE_THREAD_P.
* sysdeps/unix/sysv/linux/m68k/sys/reg.h (PT_FP0): Redefine for
Coldfire.
(PT_FP1, PT_FP2, PT_FP3, PT_FP4, PT_FP5, PT_FP6, PT_FP7): Likewise.
* sysdeps/unix/sysv/linux/m68k/sys/ucontext.h (fpregset): Sync field
order with linux. Make f_fpregs an 8*2 array on Coldfire.
(ucontext): Sync field order with linux.
* sysdeps/unix/sysv/linux/m68k/sysdep.h: Guard against multiple
inclusion.
(SYSCALL_ERROR_HANDLER): Use PCREL_OP.
* sysdeps/unix/sysv/linux/m68k/syscalls.list (oldgetrlimit): Delete.
(oldsetrlimit): Likewise.
* sysdeps/unix/sysv/linux/m68k/m680x0/syscalls.list: New file.
List oldgetrlimit and oldsetrlimit here instead.
* sysdeps/unix/sysv/linux/m68k/bits/sigcontext.h: New file.
* sysdeps/unix/sysv/linux/m68k/bits/siginfo.h: Likewise.
* sysdeps/m68k/coldfire/bits/atomic.h: Likewise.
* sysdeps/m68k/coldfire/fpu/e_sqrt.c: Likewise.
* sysdeps/m68k/coldfire/fpu/e_sqrtf.c: Likewise.
* sysdeps/m68k/coldfire/fpu/fraiseexcpt.c: Likewise.
* sysdeps/m68k/coldfire/fpu/libm-test-ulps: Likewise.
* sysdeps/m68k/coldfire/fpu/s_fabs.c: Likewise.
* sysdeps/m68k/coldfire/fpu/s_fabsf.c: Likewise.
* sysdeps/m68k/coldfire/fpu/s_lrint.c: Likewise.
* sysdeps/m68k/coldfire/fpu/s_lrintf.c: Likewise.
* sysdeps/m68k/coldfire/fpu/s_rint.c: Likewise.
* sysdeps/m68k/coldfire/fpu/s_rintf.c: Likewise.
* sysdeps/m68k/coldfire/shlib-versions: Likewise.
2006-10-03 14:44:27 +00:00
|
|
|
" PCREL_OP ("lea", "_dl_fini", "%a1", "%a1", "%pc") "\n\
|
2002-02-01 10:28:20 +00:00
|
|
|
| Initialize %fp with the stack pointer.\n\
|
|
|
|
move.l %sp, %fp\n\
|
|
|
|
| Jump to the user's entry point.\n\
|
|
|
|
jmp (%a4)\n\
|
|
|
|
.size _dl_start_user, . - _dl_start_user\n\
|
1997-08-27 19:58:41 +00:00
|
|
|
.previous");
|
1996-07-17 16:14:42 +00:00
|
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|
|
2010-03-12 18:50:55 +00:00
|
|
|
/* ELF_RTYPE_CLASS_PLT iff TYPE describes relocation of a PLT entry or
|
|
|
|
TLS variable, so undefined references should not be allowed to
|
|
|
|
define the value.
|
2015-03-05 16:26:21 +00:00
|
|
|
ELF_RTYPE_CLASS_COPY iff TYPE should not be allowed to resolve to one
|
2001-08-26 22:26:38 +00:00
|
|
|
of the main executable's symbols, as for a COPY reloc. */
|
|
|
|
#define elf_machine_type_class(type) \
|
2010-03-12 18:50:55 +00:00
|
|
|
((((type) == R_68K_JMP_SLOT \
|
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|
|| (type) == R_68K_TLS_DTPMOD32 \
|
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|
|
|| (type) == R_68K_TLS_DTPREL32 \
|
|
|
|
|| (type) == R_68K_TLS_TPREL32) * ELF_RTYPE_CLASS_PLT) \
|
2001-08-26 22:26:38 +00:00
|
|
|
| (((type) == R_68K_COPY) * ELF_RTYPE_CLASS_COPY))
|
1997-03-27 01:57:11 +00:00
|
|
|
|
|
|
|
/* A reloc type used for ld.so cmdline arg lookups to reject PLT entries. */
|
1997-09-27 00:20:13 +00:00
|
|
|
#define ELF_MACHINE_JMP_SLOT R_68K_JMP_SLOT
|
1996-07-17 16:14:42 +00:00
|
|
|
|
2000-05-05 07:12:09 +00:00
|
|
|
static inline Elf32_Addr
|
|
|
|
elf_machine_fixup_plt (struct link_map *map, lookup_t t,
|
2017-06-14 01:17:25 +00:00
|
|
|
const ElfW(Sym) *refsym, const ElfW(Sym) *sym,
|
2000-05-05 07:12:09 +00:00
|
|
|
const Elf32_Rela *reloc,
|
1997-09-27 00:20:13 +00:00
|
|
|
Elf32_Addr *reloc_addr, Elf32_Addr value)
|
|
|
|
{
|
2000-05-05 07:12:09 +00:00
|
|
|
return *reloc_addr = value;
|
1997-10-12 03:41:56 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/* Return the final value of a plt relocation. On the m68k the JMP_SLOT
|
|
|
|
relocation ignores the addend. */
|
|
|
|
static inline Elf32_Addr
|
|
|
|
elf_machine_plt_value (struct link_map *map, const Elf32_Rela *reloc,
|
|
|
|
Elf32_Addr value)
|
|
|
|
{
|
|
|
|
return value;
|
1997-09-27 00:20:13 +00:00
|
|
|
}
|
|
|
|
|
2005-01-16 02:07:29 +00:00
|
|
|
/* Names of the architecture-specific auditing callback functions. */
|
|
|
|
#define ARCH_LA_PLTENTER m68k_gnu_pltenter
|
|
|
|
#define ARCH_LA_PLTEXIT m68k_gnu_pltexit
|
|
|
|
|
1996-07-17 16:14:42 +00:00
|
|
|
#endif /* !dl_machine_h */
|
|
|
|
|
2005-01-16 02:07:29 +00:00
|
|
|
#ifdef RESOLVE_MAP
|
1996-07-17 16:14:42 +00:00
|
|
|
|
|
|
|
/* Perform the relocation specified by RELOC and SYM (which is fully resolved).
|
|
|
|
MAP is the object containing the reloc. */
|
|
|
|
|
elf: Avoid nested functions in the loader [BZ #27220]
dynamic-link.h is included more than once in some elf/ files (rtld.c,
dl-conflict.c, dl-reloc.c, dl-reloc-static-pie.c) and uses GCC nested
functions. This harms readability and the nested functions usage
is the biggest obstacle prevents Clang build (Clang doesn't support GCC
nested functions).
The key idea for unnesting is to add extra parameters (struct link_map
*and struct r_scope_elm *[]) to RESOLVE_MAP,
ELF_MACHINE_BEFORE_RTLD_RELOC, ELF_DYNAMIC_RELOCATE, elf_machine_rel[a],
elf_machine_lazy_rel, and elf_machine_runtime_setup. (This is inspired
by Stan Shebs' ppc64/x86-64 implementation in the
google/grte/v5-2.27/master which uses mixed extra parameters and static
variables.)
Future simplification:
* If mips elf_machine_runtime_setup no longer needs RESOLVE_GOTSYM,
elf_machine_runtime_setup can drop the `scope` parameter.
* If TLSDESC no longer need to be in elf_machine_lazy_rel,
elf_machine_lazy_rel can drop the `scope` parameter.
Tested on aarch64, i386, x86-64, powerpc64le, powerpc64, powerpc32,
sparc64, sparcv9, s390x, s390, hppa, ia64, armhf, alpha, and mips64.
In addition, tested build-many-glibcs.py with {arc,csky,microblaze,nios2}-linux-gnu
and riscv64-linux-gnu-rv64imafdc-lp64d.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
(cherry picked from commit 490e6c62aa31a8aa5c4a059f6e646ede121edf0a)
2021-10-07 18:55:02 +00:00
|
|
|
static inline void __attribute__ ((unused, always_inline))
|
|
|
|
elf_machine_rela (struct link_map *map, struct r_scope_elem *scope[],
|
|
|
|
const Elf32_Rela *reloc, const Elf32_Sym *sym,
|
|
|
|
const struct r_found_version *version,
|
2011-10-05 09:53:01 +00:00
|
|
|
void *const reloc_addr_arg, int skip_ifunc)
|
1996-07-17 16:14:42 +00:00
|
|
|
{
|
* elf/dynamic-link.h (elf_machine_rel, elf_machine_rela,
elf_machine_rel_relative, elf_machine_rela_relative): Don't assume
reloc_addr is aligned.
* sysdeps/alpha/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
* sysdeps/arm/dl-machine.h (elf_machine_rel, elf_machine_rela,
elf_machine_rel_relative, elf_machine_rela_relative): Adjust.
* sysdeps/cris/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
* sysdeps/hppa/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
* sysdeps/i386/dl-machine.h (elf_machine_rel, elf_machine_rela,
elf_machine_rel_relative, elf_machine_rela_relative): Adjust.
* sysdeps/ia64/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
* sysdeps/m68k/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
* sysdeps/mips/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
* sysdeps/powerpc/powerpc32/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
* sysdeps/powerpc/powerpc64/dl-machine.h
(elf_machine_rela_relative, elf_machine_rela): Adjust.
* sysdeps/s390/s390-32/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
* sysdeps/s390/s390-64/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative):
* sysdeps/sh/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
* sysdeps/sparc/sparc32/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
* sysdeps/sparc/sparc64/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
* sysdeps/x86_64/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
2003-07-31 06:33:52 +00:00
|
|
|
Elf32_Addr *const reloc_addr = reloc_addr_arg;
|
2001-08-24 08:43:21 +00:00
|
|
|
const unsigned int r_type = ELF32_R_TYPE (reloc->r_info);
|
|
|
|
|
|
|
|
if (__builtin_expect (r_type == R_68K_RELATIVE, 0))
|
1997-03-27 01:57:11 +00:00
|
|
|
*reloc_addr = map->l_addr + reloc->r_addend;
|
|
|
|
else
|
1996-07-17 16:14:42 +00:00
|
|
|
{
|
1997-05-07 14:32:55 +00:00
|
|
|
const Elf32_Sym *const refsym = sym;
|
elf: Avoid nested functions in the loader [BZ #27220]
dynamic-link.h is included more than once in some elf/ files (rtld.c,
dl-conflict.c, dl-reloc.c, dl-reloc-static-pie.c) and uses GCC nested
functions. This harms readability and the nested functions usage
is the biggest obstacle prevents Clang build (Clang doesn't support GCC
nested functions).
The key idea for unnesting is to add extra parameters (struct link_map
*and struct r_scope_elm *[]) to RESOLVE_MAP,
ELF_MACHINE_BEFORE_RTLD_RELOC, ELF_DYNAMIC_RELOCATE, elf_machine_rel[a],
elf_machine_lazy_rel, and elf_machine_runtime_setup. (This is inspired
by Stan Shebs' ppc64/x86-64 implementation in the
google/grte/v5-2.27/master which uses mixed extra parameters and static
variables.)
Future simplification:
* If mips elf_machine_runtime_setup no longer needs RESOLVE_GOTSYM,
elf_machine_runtime_setup can drop the `scope` parameter.
* If TLSDESC no longer need to be in elf_machine_lazy_rel,
elf_machine_lazy_rel can drop the `scope` parameter.
Tested on aarch64, i386, x86-64, powerpc64le, powerpc64, powerpc32,
sparc64, sparcv9, s390x, s390, hppa, ia64, armhf, alpha, and mips64.
In addition, tested build-many-glibcs.py with {arc,csky,microblaze,nios2}-linux-gnu
and riscv64-linux-gnu-rv64imafdc-lp64d.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
(cherry picked from commit 490e6c62aa31a8aa5c4a059f6e646ede121edf0a)
2021-10-07 18:55:02 +00:00
|
|
|
struct link_map *sym_map = RESOLVE_MAP (map, scope, &sym, version,
|
|
|
|
r_type);
|
elf: Unify symbol address run-time calculation [BZ #19818]
Wrap symbol address run-time calculation into a macro and use it
throughout, replacing inline calculations.
There are a couple of variants, most of them different in a functionally
insignificant way. Most calculations are right following RESOLVE_MAP,
at which point either the map or the symbol returned can be checked for
validity as the macro sets either both or neither. In some places both
the symbol and the map has to be checked however.
My initial implementation therefore always checked both, however that
resulted in code larger by as much as 0.3%, as many places know from
elsewhere that no check is needed. I have decided the size growth was
unacceptable.
Having looked closer I realized that it's the map that is the culprit.
Therefore I have modified LOOKUP_VALUE_ADDRESS to accept an additional
boolean argument telling it to access the map without checking it for
validity. This in turn has brought quite nice results, with new code
actually being smaller for i686, and MIPS o32, n32 and little-endian n64
targets, unchanged in size for x86-64 and, unusually, marginally larger
for big-endian MIPS n64, as follows:
i686:
text data bss dec hex filename
152255 4052 192 156499 26353 ld-2.27.9000-base.so
152159 4052 192 156403 262f3 ld-2.27.9000-elf-symbol-value.so
MIPS/o32/el:
text data bss dec hex filename
142906 4396 260 147562 2406a ld-2.27.9000-base.so
142890 4396 260 147546 2405a ld-2.27.9000-elf-symbol-value.so
MIPS/n32/el:
text data bss dec hex filename
142267 4404 260 146931 23df3 ld-2.27.9000-base.so
142171 4404 260 146835 23d93 ld-2.27.9000-elf-symbol-value.so
MIPS/n64/el:
text data bss dec hex filename
149835 7376 408 157619 267b3 ld-2.27.9000-base.so
149787 7376 408 157571 26783 ld-2.27.9000-elf-symbol-value.so
MIPS/o32/eb:
text data bss dec hex filename
142870 4396 260 147526 24046 ld-2.27.9000-base.so
142854 4396 260 147510 24036 ld-2.27.9000-elf-symbol-value.so
MIPS/n32/eb:
text data bss dec hex filename
142019 4404 260 146683 23cfb ld-2.27.9000-base.so
141923 4404 260 146587 23c9b ld-2.27.9000-elf-symbol-value.so
MIPS/n64/eb:
text data bss dec hex filename
149763 7376 408 157547 2676b ld-2.27.9000-base.so
149779 7376 408 157563 2677b ld-2.27.9000-elf-symbol-value.so
x86-64:
text data bss dec hex filename
148462 6452 400 155314 25eb2 ld-2.27.9000-base.so
148462 6452 400 155314 25eb2 ld-2.27.9000-elf-symbol-value.so
[BZ #19818]
* sysdeps/generic/ldsodefs.h (LOOKUP_VALUE_ADDRESS): Add `set'
parameter.
(SYMBOL_ADDRESS): New macro.
[!ELF_FUNCTION_PTR_IS_SPECIAL] (DL_SYMBOL_ADDRESS): Use
SYMBOL_ADDRESS for symbol address calculation.
* elf/dl-runtime.c (_dl_fixup): Likewise.
(_dl_profile_fixup): Likewise.
* elf/dl-symaddr.c (_dl_symbol_address): Likewise.
* elf/rtld.c (dl_main): Likewise.
* sysdeps/aarch64/dl-machine.h (elf_machine_rela): Likewise.
* sysdeps/alpha/dl-machine.h (elf_machine_rela): Likewise.
* sysdeps/arm/dl-machine.h (elf_machine_rel): Likewise.
(elf_machine_rela): Likewise.
* sysdeps/hppa/dl-machine.h (elf_machine_rela): Likewise.
* sysdeps/hppa/dl-symaddr.c (_dl_symbol_address): Likewise.
* sysdeps/i386/dl-machine.h (elf_machine_rel): Likewise.
(elf_machine_rela): Likewise.
* sysdeps/ia64/dl-machine.h (elf_machine_rela): Likewise.
* sysdeps/m68k/dl-machine.h (elf_machine_rela): Likewise.
* sysdeps/microblaze/dl-machine.h (elf_machine_rela): Likewise.
* sysdeps/mips/dl-machine.h (ELF_MACHINE_BEFORE_RTLD_RELOC):
Likewise.
(elf_machine_reloc): Likewise.
(elf_machine_got_rel): Likewise.
* sysdeps/mips/dl-trampoline.c (__dl_runtime_resolve): Likewise.
* sysdeps/nios2/dl-machine.h (elf_machine_rela): Likewise.
* sysdeps/powerpc/powerpc32/dl-machine.h (elf_machine_rela):
Likewise.
* sysdeps/powerpc/powerpc64/dl-machine.h (elf_machine_rela):
Likewise.
* sysdeps/riscv/dl-machine.h (elf_machine_rela): Likewise.
* sysdeps/s390/s390-32/dl-machine.h (elf_machine_rela):
Likewise.
* sysdeps/s390/s390-64/dl-machine.h (elf_machine_rela):
Likewise.
* sysdeps/sh/dl-machine.h (elf_machine_rela): Likewise.
* sysdeps/sparc/sparc32/dl-machine.h (elf_machine_rela):
Likewise.
* sysdeps/sparc/sparc64/dl-machine.h (elf_machine_rela):
Likewise.
* sysdeps/tile/dl-machine.h (elf_machine_rela): Likewise.
* sysdeps/x86_64/dl-machine.h (elf_machine_rela): Likewise.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2018-04-04 22:09:37 +00:00
|
|
|
Elf32_Addr value = SYMBOL_ADDRESS (sym_map, sym, true);
|
1997-03-27 01:57:11 +00:00
|
|
|
|
2001-08-24 08:43:21 +00:00
|
|
|
switch (r_type)
|
1997-03-27 01:57:11 +00:00
|
|
|
{
|
|
|
|
case R_68K_COPY:
|
1997-06-21 02:08:10 +00:00
|
|
|
if (sym == NULL)
|
|
|
|
/* This can happen in trace mode if an object could not be
|
|
|
|
found. */
|
|
|
|
break;
|
1997-05-25 01:07:16 +00:00
|
|
|
if (sym->st_size > refsym->st_size
|
2004-03-05 10:22:54 +00:00
|
|
|
|| (sym->st_size < refsym->st_size && GLRO(dl_verbose)))
|
1997-05-07 14:32:55 +00:00
|
|
|
{
|
|
|
|
const char *strtab;
|
|
|
|
|
2000-03-31 05:16:19 +00:00
|
|
|
strtab = (const void *) D_PTR (map, l_info[DT_STRTAB]);
|
2001-02-28 06:35:24 +00:00
|
|
|
_dl_error_printf ("\
|
|
|
|
%s: Symbol `%s' has different size in shared object, consider re-linking\n",
|
2013-05-29 16:00:20 +00:00
|
|
|
RTLD_PROGNAME, strtab + refsym->st_name);
|
1997-05-07 14:32:55 +00:00
|
|
|
}
|
* elf/dynamic-link.h (elf_machine_rel, elf_machine_rela,
elf_machine_rel_relative, elf_machine_rela_relative): Don't assume
reloc_addr is aligned.
* sysdeps/alpha/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
* sysdeps/arm/dl-machine.h (elf_machine_rel, elf_machine_rela,
elf_machine_rel_relative, elf_machine_rela_relative): Adjust.
* sysdeps/cris/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
* sysdeps/hppa/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
* sysdeps/i386/dl-machine.h (elf_machine_rel, elf_machine_rela,
elf_machine_rel_relative, elf_machine_rela_relative): Adjust.
* sysdeps/ia64/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
* sysdeps/m68k/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
* sysdeps/mips/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
* sysdeps/powerpc/powerpc32/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
* sysdeps/powerpc/powerpc64/dl-machine.h
(elf_machine_rela_relative, elf_machine_rela): Adjust.
* sysdeps/s390/s390-32/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
* sysdeps/s390/s390-64/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative):
* sysdeps/sh/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
* sysdeps/sparc/sparc32/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
* sysdeps/sparc/sparc64/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
* sysdeps/x86_64/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
2003-07-31 06:33:52 +00:00
|
|
|
memcpy (reloc_addr_arg, (void *) value,
|
|
|
|
MIN (sym->st_size, refsym->st_size));
|
1997-03-27 01:57:11 +00:00
|
|
|
break;
|
|
|
|
case R_68K_GLOB_DAT:
|
|
|
|
case R_68K_JMP_SLOT:
|
1997-10-12 03:41:56 +00:00
|
|
|
*reloc_addr = value;
|
1997-03-27 01:57:11 +00:00
|
|
|
break;
|
|
|
|
case R_68K_8:
|
|
|
|
*(char *) reloc_addr = value + reloc->r_addend;
|
|
|
|
break;
|
|
|
|
case R_68K_16:
|
|
|
|
*(short *) reloc_addr = value + reloc->r_addend;
|
|
|
|
break;
|
|
|
|
case R_68K_32:
|
|
|
|
*reloc_addr = value + reloc->r_addend;
|
|
|
|
break;
|
|
|
|
case R_68K_PC8:
|
|
|
|
*(char *) reloc_addr
|
|
|
|
= value + reloc->r_addend - (Elf32_Addr) reloc_addr;
|
|
|
|
break;
|
|
|
|
case R_68K_PC16:
|
|
|
|
*(short *) reloc_addr
|
|
|
|
= value + reloc->r_addend - (Elf32_Addr) reloc_addr;
|
|
|
|
break;
|
|
|
|
case R_68K_PC32:
|
|
|
|
*reloc_addr = value + reloc->r_addend - (Elf32_Addr) reloc_addr;
|
|
|
|
break;
|
2011-09-11 14:48:42 +00:00
|
|
|
#ifndef RTLD_BOOTSTRAP
|
2010-03-12 18:50:55 +00:00
|
|
|
case R_68K_TLS_DTPMOD32:
|
|
|
|
/* Get the information from the link map returned by the
|
|
|
|
resolv function. */
|
|
|
|
if (sym_map != NULL)
|
|
|
|
*reloc_addr = sym_map->l_tls_modid;
|
|
|
|
break;
|
|
|
|
case R_68K_TLS_DTPREL32:
|
|
|
|
if (sym != NULL)
|
|
|
|
*reloc_addr = TLS_DTPREL_VALUE (sym, reloc);
|
|
|
|
break;
|
|
|
|
case R_68K_TLS_TPREL32:
|
|
|
|
if (sym != NULL)
|
|
|
|
{
|
|
|
|
CHECK_STATIC_TLS (map, sym_map);
|
|
|
|
*reloc_addr = TLS_TPREL_VALUE (sym_map, sym, reloc);
|
|
|
|
}
|
|
|
|
break;
|
2011-09-11 14:48:42 +00:00
|
|
|
#endif /* !RTLD_BOOTSTRAP */
|
1997-03-27 01:57:11 +00:00
|
|
|
case R_68K_NONE: /* Alright, Wilbur. */
|
|
|
|
break;
|
|
|
|
default:
|
2001-08-24 08:43:21 +00:00
|
|
|
_dl_reloc_bad_type (map, r_type, 0);
|
1997-03-27 01:57:11 +00:00
|
|
|
break;
|
|
|
|
}
|
1996-07-17 16:14:42 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
elf: Avoid nested functions in the loader [BZ #27220]
dynamic-link.h is included more than once in some elf/ files (rtld.c,
dl-conflict.c, dl-reloc.c, dl-reloc-static-pie.c) and uses GCC nested
functions. This harms readability and the nested functions usage
is the biggest obstacle prevents Clang build (Clang doesn't support GCC
nested functions).
The key idea for unnesting is to add extra parameters (struct link_map
*and struct r_scope_elm *[]) to RESOLVE_MAP,
ELF_MACHINE_BEFORE_RTLD_RELOC, ELF_DYNAMIC_RELOCATE, elf_machine_rel[a],
elf_machine_lazy_rel, and elf_machine_runtime_setup. (This is inspired
by Stan Shebs' ppc64/x86-64 implementation in the
google/grte/v5-2.27/master which uses mixed extra parameters and static
variables.)
Future simplification:
* If mips elf_machine_runtime_setup no longer needs RESOLVE_GOTSYM,
elf_machine_runtime_setup can drop the `scope` parameter.
* If TLSDESC no longer need to be in elf_machine_lazy_rel,
elf_machine_lazy_rel can drop the `scope` parameter.
Tested on aarch64, i386, x86-64, powerpc64le, powerpc64, powerpc32,
sparc64, sparcv9, s390x, s390, hppa, ia64, armhf, alpha, and mips64.
In addition, tested build-many-glibcs.py with {arc,csky,microblaze,nios2}-linux-gnu
and riscv64-linux-gnu-rv64imafdc-lp64d.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
(cherry picked from commit 490e6c62aa31a8aa5c4a059f6e646ede121edf0a)
2021-10-07 18:55:02 +00:00
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static inline void __attribute__ ((unused, always_inline))
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2001-08-24 14:51:50 +00:00
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elf_machine_rela_relative (Elf32_Addr l_addr, const Elf32_Rela *reloc,
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* elf/dynamic-link.h (elf_machine_rel, elf_machine_rela,
elf_machine_rel_relative, elf_machine_rela_relative): Don't assume
reloc_addr is aligned.
* sysdeps/alpha/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
* sysdeps/arm/dl-machine.h (elf_machine_rel, elf_machine_rela,
elf_machine_rel_relative, elf_machine_rela_relative): Adjust.
* sysdeps/cris/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
* sysdeps/hppa/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
* sysdeps/i386/dl-machine.h (elf_machine_rel, elf_machine_rela,
elf_machine_rel_relative, elf_machine_rela_relative): Adjust.
* sysdeps/ia64/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
* sysdeps/m68k/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
* sysdeps/mips/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
* sysdeps/powerpc/powerpc32/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
* sysdeps/powerpc/powerpc64/dl-machine.h
(elf_machine_rela_relative, elf_machine_rela): Adjust.
* sysdeps/s390/s390-32/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
* sysdeps/s390/s390-64/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative):
* sysdeps/sh/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
* sysdeps/sparc/sparc32/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
* sysdeps/sparc/sparc64/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
* sysdeps/x86_64/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
2003-07-31 06:33:52 +00:00
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void *const reloc_addr_arg)
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2001-08-24 08:43:21 +00:00
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{
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* elf/dynamic-link.h (elf_machine_rel, elf_machine_rela,
elf_machine_rel_relative, elf_machine_rela_relative): Don't assume
reloc_addr is aligned.
* sysdeps/alpha/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
* sysdeps/arm/dl-machine.h (elf_machine_rel, elf_machine_rela,
elf_machine_rel_relative, elf_machine_rela_relative): Adjust.
* sysdeps/cris/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
* sysdeps/hppa/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
* sysdeps/i386/dl-machine.h (elf_machine_rel, elf_machine_rela,
elf_machine_rel_relative, elf_machine_rela_relative): Adjust.
* sysdeps/ia64/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
* sysdeps/m68k/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
* sysdeps/mips/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
* sysdeps/powerpc/powerpc32/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
* sysdeps/powerpc/powerpc64/dl-machine.h
(elf_machine_rela_relative, elf_machine_rela): Adjust.
* sysdeps/s390/s390-32/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
* sysdeps/s390/s390-64/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative):
* sysdeps/sh/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
* sysdeps/sparc/sparc32/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
* sysdeps/sparc/sparc64/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
* sysdeps/x86_64/dl-machine.h (elf_machine_rela,
elf_machine_rela_relative): Adjust.
2003-07-31 06:33:52 +00:00
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Elf32_Addr *const reloc_addr = reloc_addr_arg;
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2001-08-24 08:43:21 +00:00
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*reloc_addr = l_addr + reloc->r_addend;
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}
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elf: Avoid nested functions in the loader [BZ #27220]
dynamic-link.h is included more than once in some elf/ files (rtld.c,
dl-conflict.c, dl-reloc.c, dl-reloc-static-pie.c) and uses GCC nested
functions. This harms readability and the nested functions usage
is the biggest obstacle prevents Clang build (Clang doesn't support GCC
nested functions).
The key idea for unnesting is to add extra parameters (struct link_map
*and struct r_scope_elm *[]) to RESOLVE_MAP,
ELF_MACHINE_BEFORE_RTLD_RELOC, ELF_DYNAMIC_RELOCATE, elf_machine_rel[a],
elf_machine_lazy_rel, and elf_machine_runtime_setup. (This is inspired
by Stan Shebs' ppc64/x86-64 implementation in the
google/grte/v5-2.27/master which uses mixed extra parameters and static
variables.)
Future simplification:
* If mips elf_machine_runtime_setup no longer needs RESOLVE_GOTSYM,
elf_machine_runtime_setup can drop the `scope` parameter.
* If TLSDESC no longer need to be in elf_machine_lazy_rel,
elf_machine_lazy_rel can drop the `scope` parameter.
Tested on aarch64, i386, x86-64, powerpc64le, powerpc64, powerpc32,
sparc64, sparcv9, s390x, s390, hppa, ia64, armhf, alpha, and mips64.
In addition, tested build-many-glibcs.py with {arc,csky,microblaze,nios2}-linux-gnu
and riscv64-linux-gnu-rv64imafdc-lp64d.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
(cherry picked from commit 490e6c62aa31a8aa5c4a059f6e646ede121edf0a)
2021-10-07 18:55:02 +00:00
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static inline void __attribute__ ((unused, always_inline))
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elf_machine_lazy_rel (struct link_map *map, struct r_scope_elem *scope[],
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2011-10-05 09:53:01 +00:00
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Elf32_Addr l_addr, const Elf32_Rela *reloc,
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int skip_ifunc)
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1996-07-17 16:14:42 +00:00
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{
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1998-08-28 22:54:12 +00:00
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Elf32_Addr *const reloc_addr = (void *) (l_addr + reloc->r_offset);
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1999-07-21 16:57:52 +00:00
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if (ELF32_R_TYPE (reloc->r_info) == R_68K_JMP_SLOT)
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*reloc_addr += l_addr;
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else
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_dl_reloc_bad_type (map, ELF32_R_TYPE (reloc->r_info), 1);
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1996-07-17 16:14:42 +00:00
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}
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2005-01-16 02:07:29 +00:00
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#endif /* RESOLVE_MAP */
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