1997-06-29 22:05:27 +00:00
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/* Startup code for elf64-sparc
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1998-04-06 17:40:58 +00:00
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Copyright (C) 1997, 1998 Free Software Foundation, Inc.
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1997-06-29 22:05:27 +00:00
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Contributed by Richard Henderson <richard@gnu.ai.mit.edu>, 1997.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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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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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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1997-07-06 22:02:42 +00:00
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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1997-06-29 22:05:27 +00:00
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#include <sysdep.h>
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.section ".text"
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.align 4
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.global _start
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.type _start,#function
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_start:
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/* Terminate the stack frame, and reserve space for functions to
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drop their arguments. */
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mov %g0, %fp
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sub %sp, 6*8, %sp
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/* Extract the arguments and environment as encoded on the stack. The
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argument info starts after one register window (16 words) past the SP,
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plus the bias we added, plus the magic v9 STACK_BIAS. */
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1998-04-06 17:40:58 +00:00
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ldx [%sp+STACK_BIAS+22*8], %o1
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add %sp, STACK_BIAS+23*8, %o2
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/* Load the addresses of the user entry points. */
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Update.
1998-09-14 Andreas Jaeger <aj@arthur.rhein-neckar.de>
* sysdeps/mach/hurd/dl-cache.c (_dl_unload_cache): New dummy
function. Reported by okuji@kuicr.kyoto-u.ac.jp [PR libc/789].
1998-09-15 David S. Miller <davem@pierdol.cobaltmicro.com>
* sysdeps/sparc/sparc32/dl-machine.h (elf_machine_runtime_setup):
Add profiling support.
(TRAMPOLINE_TEMPLATE): New macro.
(ELF_MACHINE_RUNTIME_TRAMPOLINE): Define in terms of that.
(RTLD_START): Prettify, and set __libc_stack_end properly.
(elf_machine_rela) [R_SPARC_COPY]: Remove RTLD_BOOTSTRAP ifndef
and check for sym being NULL instead.
* sysdeps/sparc/sparc64/addmul_1.S: Adjust to allocate 192 bytes
of stack space.
* sysdeps/sparc/sparc64/lshift.S: Likewise.
* sysdeps/sparc/sparc64/mul_1.S: Likewise.
* sysdeps/sparc/sparc64/rshift.S: Likewise.
* sysdeps/sparc/sparc64/submul_1.S: Likewise.
* sysdeps/sparc/sparc64/elf/crtbegin.S: Likewise and remove old
MEDANY code model %g4 usage.
* sysdeps/sparc/sparc64/elf/crtend.S: Likewise and remove old
MEDANY code model %g4 usage.
* sysdeps/sparc/sparc64/elf/start.S: Rework to not use old FULLANY
code model address formation.
* sysdeps/sparc/sparc64/dl-machine.h: Don't include link.h, do
include elf/ldsodefs.h
(DT_SPARC): Remove.
(elf_machine_matches_host): It is now EM_SPARCV9.
(elf_machine_dynamic): Clean up to remove ugly cast.
(elf_machine_fixup_plt): Rework for new V9 ABI, add support for
new PLT formats.
(elf_machine_rela): Don't do anything at all for R_SPARC_NONE.
Prettify rest of function.
[R_SPARC_COPY]: Check for sym being NULL.
[R_SPARC_32]: Handle it.
[R_SPARC_H44, R_SPARC_M44, R_SPARC_L44]: Handle them for the
MEDMID code model.
[R_SPARC_HH22, R_SPARC_HM10, R_SPARC_LM22]: Handle them for the
MEDANY code model.
[R_SPARC_NONE]: Remove this case, as it is now checked earlier.
(elf_machine_runtime_setup): Rewrite for new V9 ABI plt formats.
Add profiling support.
(TRAMPOLINE_TEMPLATE): New macro.
(ELF_MACHINE_RUNTIME_TRAMPOLINE): Define in terms of that.
(RTLD_START): Prettify and set __libc_stack_end.
* sysdeps/unix/sysv/linux/sparc/bits/sigaction.h (SA_SIGINFO):
Define.
* sysdeps/unix/sysv/linux/sparc/bits/signum.h (_NSIG): Set to 64.
(SIGRTMIN, SIGRTMAX, __SIGRTMIN, __SIGRTMAX): Define.
* sysdeps/unix/sysv/linux/sparc/sparc32/brk.c (__brk): Remove
unused variable scratch.
* sysdeps/unix/sysv/linux/sparc/sparc32/sigaction.c
(__syscall_rt_sigaction, __rt_sigreturn_stub, __sigreturn_stub):
Declare.
(__sigaction): Rewrite rt_sigaction case to pass correct sigreturn
stub to rt_sigaction syscalls. Rewrite non-rt case to use correct
old format kernel sigaction structures.
* sysdeps/unix/sysv/linux/sparc/sparc64/ucontext.h: Move...
* sysdeps/unix/sysv/linux/sparc/sparc64/sys/ucontext.h: to here.
* sysdeps/unix/sysv/linux/sparc/sparc64/Dist: Remove ucontext.h
* sysdeps/unix/sysv/linux/sparc/sparc64/bits/setjmp.h: Fix
ucontext include.
(_JMPBUF_UNWINDS): Define.
* sysdeps/unix/sysv/linux/sparc/sparc64/bits/statfs.h: Declare
statfs64 structure, which is exactly the same as the normal one.
* sysdeps/unix/sysv/linux/sparc/sparc64/brk.S: Allocate 192 bytes
of stack. Use correct syscall trap number. Add branch prediction
settings to branch instructions. Remove old MEDANY code model %g4
referneces for non-PIC.
* sysdeps/unix/sysv/linux/sparc/sparc64/clone.S: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/init-first.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/pipe.S: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/syscall.S: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/longjmp.S: Add
__libc_longjmp and __libc_siglongjmp strong aliases.
* sysdeps/unix/sysv/linux/sparc/sparc64/readdir.c (__readdir64):
Also define to __no__readdir64_decl around readdir.c inclusion.
(__readdir64): Add strong alias.
* sysdeps/unix/sysv/linux/sparc/sparc64/socket.S: New file.
* sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list (getrlimit):
Set strong and weak names properly.
1998-09-16 11:25 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* manual/Makefile (AWK): Default to gawk if standalone.
1998-09-15 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* Makefile (distribute): Undo last change.
* Make-dist (+tsrc) [not subdir]: Also include indirection headers
for sysdep headers.
(+subdir-headers): Removed, unused.
1998-09-15 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* stdio-common/Makefile ($(inst_includedir)/bits/stdio_lim.h): Use
$(do-install).
1998-09-15 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* Makerules ($(+sysdir_pfx)sysd-Makefile): Don't check for
absolute name in $(config-sysdirs), can never happen.
($(+sysdir_pfx)sysd-rules): Likewise.
* Makeconfig (full-config-sysdirs): Likewise.
(all-Subdirs-files): Prepend $(..).
* configure.in: Don't check for absolute name in $add_ons_pfx, can
not happen. Let --enable-add-ons=yes work if no add-ons actually
exist.
1998-09-15 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* Rules ($(common-objpfx)bits/stdio_%.h): Remove extra
continuations in command.
1998-09-15 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* libio/oldstdfiles.c (_IO_stdin_used): Update declaration.
1998-09-16 17:54:34 +00:00
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sethi %hi(main), %o0
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sethi %hi(_init), %o3
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sethi %hi(_fini), %o4
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or %o0, %lo(main), %o0
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or %o3, %lo(_init), %o3
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or %o4, %lo(_fini), %o4
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1998-04-06 17:40:58 +00:00
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/* When starting a binary via the dynamic linker, %g1 contains the
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address of the shared library termination function, which will be
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registered with atexit(). If we are statically linked, this will
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be NULL. */
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mov %g1, %o5
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/* Let libc do the rest of the initialization, and call main. */
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call __libc_start_main
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1997-06-29 22:05:27 +00:00
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nop
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/* Die very horribly if exit returns. */
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illtrap 0
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1998-04-06 17:40:58 +00:00
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.size _start, .-_start
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