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PowerPC64 ABI fixes
This commit is contained in:
Alan Modra
Ulrich Drepper
parent
026373745e
commit
bebff237c5
37
ChangeLog
37
ChangeLog
@ -1,3 +1,40 @@
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2010-05-01 Alan Modra <amodra@gmail.com>
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* sysdeps/powerpc/powerpc32/power4/memcmp.S: Correct cfi for r24.
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* sysdeps/powerpc/powerpc64/bsd-_setjmp.S: Move contents..
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* sysdeps/powerpc/powerpc64/bsd-setjmp.S: ..and these too..
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* sysdeps/powerpc/powerpc64/setjmp.S: ..to here..
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* sysdeps/powerpc/powerpc64/setjmp-common.S: ..and here, with some
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tidying. Don't tail-call __sigjmp_save for static lib.
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* sysdeps/powerpc/powerpc64/sysdep.h (SAVE_ARG, REST_ARG): Correct
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save location.
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(CFI_SAVE_ARG, CFI_REST_ARG): New macros.
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(CALL_MCOUNT): Add eh info, and nop after bl.
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(TAIL_CALL_SYSCALL_ERROR): New macro.
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(PSEUDO_RET): Use it.
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* sysdeps/powerpc/powerpc64/dl-trampoline.S (_dl_runtime_resolve):
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Correct save location of integer regs and cr.
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(_dl_profile_resolve): Correct cr save location. Delete nops
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after bl when SHARED. Reduce cfi size a little by better
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placement of cfi directives.
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* sysdeps/powerpc/powerpc64/fpu/s_copysign.S (__copysign): Don't
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make a stack frame. Instead use parm save area as a temp.
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* sysdeps/unix/sysv/linux/powerpc/powerpc64/brk.S (__brk): Don't
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make a stack frame. Use TAIL_CALL_SYSCALL_ERROR.
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* sysdeps/unix/sysv/linux/powerpc/powerpc64/clone.S (__clone):
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Don't make a stack frame for parent, use parm save area.
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Increase child stack frame to 112 bytes. Don't save unused reg,
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and adjust reg usage. Set up cfi on error recovery and
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epilogue of parent, and use TAIL_CALL_SYSCALL_ERROR, PSEUDO_RET.
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* sysdeps/unix/sysv/linux/powerpc/powerpc64/makecontext.S
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(__makecontext): Add dummy nop after jump to exit.
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* sysdeps/unix/sysv/linux/powerpc/powerpc64/socket.S (__socket):
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Use correct parm save area and cr save, reduce stack frame.
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Correct cfi for possible PSEUDO_RET frame setup.
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* sysdeps/unix/sysv/linux/powerpc/powerpc64/vfork.S (__vfork):
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Branch to local label emitted by PSEUDO_RET rather than
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__syscall_error.
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2010-08-12 Andreas Schwab <schwab@redhat.com>
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[BZ #11904]
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@ -1,3 +1,14 @@
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2010-05-01 Alan Modra <amodra@gmail.com>
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* sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h
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(PSEUDO): Use correct cr save. Don't use wrong parm save area
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to save temps. Correct cfi for possible later frame manipulation.
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(DOCARGS_1, UNDOCARGS_1): Use the correct parm save area.
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(DOCARGS_2, UNDOCARGS_2, DOCARGS_3, UNDOCARGS_3): Likewise.
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(DOCARGS_4, UNDOCARGS_4, DOCARGS_5, UNDOCARGS_5): Likewise.
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(DOCARGS_6, UNDOCARGS_6): Likewise.
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(CENABLE, CDISABLE): Add nops for non-shared calls.
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2010-07-06 Andreas Schwab <schwab@redhat.com>
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* sysdeps/unix/sysv/linux/pthread_getname.c (pthread_getname_np):
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@ -52,51 +52,70 @@
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cfi_offset (lr, 16); \
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DOCARGS_##args; /* save syscall args around CENABLE. */ \
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CENABLE; \
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std 3,72(1); /* store CENABLE return value (MASK). */ \
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std 3,112(1); /* store CENABLE return value (MASK). */ \
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UNDOCARGS_##args; /* restore syscall args. */ \
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DO_CALL (SYS_ify (syscall_name)); \
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mfcr 0; /* save CR/R3 around CDISABLE. */ \
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std 3,64(1); \
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std 0,8(1); \
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ld 3,72(1); /* pass MASK to CDISABLE. */ \
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std 3,120(1); \
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std 0,128+8(1); \
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cfi_offset (cr, 8); \
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ld 3,112(1); /* pass MASK to CDISABLE. */ \
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CDISABLE; \
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ld 9,128+16(1); \
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ld 0,8(1); /* restore CR/R3. */ \
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ld 3,64(1); \
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ld 0,128+8(1); /* restore CR/R3. */ \
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ld 3,120(1); \
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mtlr 9; \
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mtcr 0; \
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addi 1,1,128;
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addi 1,1,128; \
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cfi_adjust_cfa_offset (-128); \
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cfi_restore (lr); \
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cfi_restore (cr)
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# define DOCARGS_0
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# define UNDOCARGS_0
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# define DOCARGS_1 std 3,80(1); DOCARGS_0
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# define UNDOCARGS_1 ld 3,80(1); UNDOCARGS_0
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# define DOCARGS_1 std 3,128+48(1); DOCARGS_0
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# define UNDOCARGS_1 ld 3,128+48(1); UNDOCARGS_0
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# define DOCARGS_2 std 4,88(1); DOCARGS_1
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# define UNDOCARGS_2 ld 4,88(1); UNDOCARGS_1
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# define DOCARGS_2 std 4,128+56(1); DOCARGS_1
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# define UNDOCARGS_2 ld 4,128+56(1); UNDOCARGS_1
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# define DOCARGS_3 std 5,96(1); DOCARGS_2
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# define UNDOCARGS_3 ld 5,96(1); UNDOCARGS_2
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# define DOCARGS_3 std 5,128+64(1); DOCARGS_2
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# define UNDOCARGS_3 ld 5,128+64(1); UNDOCARGS_2
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# define DOCARGS_4 std 6,104(1); DOCARGS_3
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# define UNDOCARGS_4 ld 6,104(1); UNDOCARGS_3
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# define DOCARGS_4 std 6,128+72(1); DOCARGS_3
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# define UNDOCARGS_4 ld 6,128+72(1); UNDOCARGS_3
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# define DOCARGS_5 std 7,112(1); DOCARGS_4
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# define UNDOCARGS_5 ld 7,112(1); UNDOCARGS_4
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# define DOCARGS_5 std 7,128+80(1); DOCARGS_4
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# define UNDOCARGS_5 ld 7,128+80(1); UNDOCARGS_4
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# define DOCARGS_6 std 8,120(1); DOCARGS_5
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# define UNDOCARGS_6 ld 8,120(1); UNDOCARGS_5
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# define DOCARGS_6 std 8,128+88(1); DOCARGS_5
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# define UNDOCARGS_6 ld 8,128+88(1); UNDOCARGS_5
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# ifdef IS_IN_libpthread
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# define CENABLE bl JUMPTARGET(__pthread_enable_asynccancel)
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# define CDISABLE bl JUMPTARGET(__pthread_disable_asynccancel)
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# ifdef SHARED
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# define CENABLE bl JUMPTARGET(__pthread_enable_asynccancel)
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# define CDISABLE bl JUMPTARGET(__pthread_disable_asynccancel)
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# else
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# define CENABLE bl JUMPTARGET(__pthread_enable_asynccancel); nop
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# define CDISABLE bl JUMPTARGET(__pthread_disable_asynccancel); nop
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# endif
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# elif !defined NOT_IN_libc
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# define CENABLE bl JUMPTARGET(__libc_enable_asynccancel)
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# define CDISABLE bl JUMPTARGET(__libc_disable_asynccancel)
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# ifdef SHARED
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# define CENABLE bl JUMPTARGET(__libc_enable_asynccancel)
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# define CDISABLE bl JUMPTARGET(__libc_disable_asynccancel)
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# else
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# define CENABLE bl JUMPTARGET(__libc_enable_asynccancel); nop
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# define CDISABLE bl JUMPTARGET(__libc_disable_asynccancel); nop
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# endif
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# elif defined IS_IN_librt
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# define CENABLE bl JUMPTARGET(__librt_enable_asynccancel)
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# define CDISABLE bl JUMPTARGET(__librt_disable_asynccancel)
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# ifdef SHARED
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# define CENABLE bl JUMPTARGET(__librt_enable_asynccancel)
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# define CDISABLE bl JUMPTARGET(__librt_disable_asynccancel)
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# else
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# define CENABLE bl JUMPTARGET(__librt_enable_asynccancel); nop
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# define CDISABLE bl JUMPTARGET(__librt_disable_asynccancel); nop
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# endif
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# else
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# error Unsupported library
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# endif
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@ -646,7 +646,7 @@ L(Wunaligned):
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cfi_offset(r25,(24-64))
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andi. rBITDIF, rN, 12 /* Get the W remainder */
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stw r24,20(r1)
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cfi_offset(r24,(24-64))
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cfi_offset(r24,(20-64))
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slwi rSHL, rSHL, 3
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lwz rWORD6, 0(rSTR2)
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lwzu rWORD8, 4(rSTR2)
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@ -1,66 +1 @@
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/* BSD `_setjmp' entry point to `sigsetjmp (..., 0)'. PowerPC32/64 version.
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Copyright (C) 1994, 1997, 1999, 2000, 2002, 2003, 2004
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Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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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 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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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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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <shlib-compat.h>
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#include <libc-symbols.h>
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#include <sysdep.h>
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#include <bp-sym.h>
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#if defined NOT_IN_libc
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/* Build a non-versioned object for rtld-*. */
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ENTRY (BP_SYM (_setjmp))
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CALL_MCOUNT 1
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li r4,0 /* Set second argument to 0. */
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b JUMPTARGET (__sigsetjmp_ent)
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END (BP_SYM (_setjmp))
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libc_hidden_def (_setjmp)
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#else
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/* Build a versioned object for libc. */
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# if defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_3, GLIBC_2_3_4)
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symbol_version (__novmx_setjmp,_setjmp,GLIBC_2.3);
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ENTRY (BP_SYM (__novmx_setjmp))
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CALL_MCOUNT 1
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li r4,0 /* Set second argument to 0. */
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b JUMPTARGET (__novmx__sigsetjmp_ent)
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END (BP_SYM (__novmx_setjmp))
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libc_hidden_def (__novmx_setjmp)
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# endif /* defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_3, GLIBC_2_3_4) */
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default_symbol_version (__vmx_setjmp,_setjmp,GLIBC_2.3.4)
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/* __GI__setjmp prototype is needed for ntpl i.e. _setjmp is defined
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as a libc_hidden_proto & is used in sysdeps/generic/libc-start.c
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if HAVE_CLEANUP_JMP_BUF is defined */
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ENTRY (BP_SYM (__GI__setjmp))
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#if defined SHARED && !defined IS_IN_rtld
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std r2,40(r1) /* Save the callers TOC in the save area. */
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#endif
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CALL_MCOUNT 1
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li r4,0 /* Set second argument to 0. */
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b JUMPTARGET (__vmx__sigsetjmp_ent)
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END (BP_SYM (__GI__setjmp))
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ENTRY (BP_SYM (__vmx_setjmp))
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CALL_MCOUNT 1
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li r4,0 /* Set second argument to 0. */
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b JUMPTARGET (__vmx__sigsetjmp_ent)
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END (BP_SYM (__vmx_setjmp))
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libc_hidden_def (__vmx_setjmp)
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#endif /* !NOT_IN_libc */
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/* _setjmp moved to setjmp-common.S */
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@ -1,45 +1 @@
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/* BSD `setjmp' entry point to `sigsetjmp (..., 1)'. PowerPC32/64 version.
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Copyright (C) 1994,1997,1999,2000,2003,2004 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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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 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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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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Lesser General Public License for more details.
|
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|
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <shlib-compat.h>
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#include <libc-symbols.h>
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#include <sysdep.h>
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#include <bp-sym.h>
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#if defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_3, GLIBC_2_3_4)
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ENTRY (__novmxsetjmp)
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CALL_MCOUNT 1
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li r4,1 /* Set second argument to 1. */
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b JUMPTARGET (__novmx__sigsetjmp_ent)
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END (__novmxsetjmp)
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strong_alias (__novmxsetjmp, __novmx__setjmp)
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symbol_version (__novmxsetjmp, setjmp, GLIBC_2.3)
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#endif /* defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_3, GLIBC_2_3_4) */
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ENTRY (__vmxsetjmp)
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CALL_MCOUNT 1
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li r4,1 /* Set second argument to 1. */
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b JUMPTARGET (__vmx__sigsetjmp_ent)
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END (__vmxsetjmp)
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strong_alias (__vmxsetjmp, __vmx__setjmp)
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strong_alias (__vmx__sigsetjmp, __setjmp)
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default_symbol_version (__vmxsetjmp, setjmp, GLIBC_2.3.4)
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/* setjmp moved to setjmp-common.S */
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@ -27,42 +27,50 @@
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parm1 (r3) and the index (r0) need to be converted to an offset
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(index * 24) in parm2 (r4). */
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EALIGN(_dl_runtime_resolve, 4, 0)
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#define FRAME_SIZE 176
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/* We need to save the registers used to pass parameters, ie. r3 thru
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r10; the registers are saved in a stack frame. */
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stdu r1,-128(r1)
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cfi_adjust_cfa_offset (128)
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std r3,48(r1)
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r10; Use local var space rather than the parameter save area,
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because gcc as of 2010/05 doesn't allocate a proper stack frame for
|
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a function that makes no calls except for __tls_get_addr and we
|
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might be here resolving the __tls_get_addr call. */
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#define INT_PARMS 112
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EALIGN(_dl_runtime_resolve, 4, 0)
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stdu r1,-FRAME_SIZE(r1)
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cfi_adjust_cfa_offset (FRAME_SIZE)
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std r3,INT_PARMS+0(r1)
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mr r3,r11
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std r4,56(r1)
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std r4,INT_PARMS+8(r1)
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sldi r4,r0,1
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std r5,64(r1)
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std r5,INT_PARMS+16(r1)
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add r4,r4,r0
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std r6,72(r1)
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std r6,INT_PARMS+24(r1)
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sldi r4,r4,3
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std r7,80(r1)
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std r7,INT_PARMS+32(r1)
|
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mflr r0
|
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std r8,88(r1)
|
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/* Store the LR in the LR Save area of the previous frame. */
|
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std r0,128+16(r1)
|
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std r8,INT_PARMS+40(r1)
|
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/* Store the LR in the LR Save area. */
|
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std r0,FRAME_SIZE+16(r1)
|
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cfi_offset (lr, 16)
|
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mfcr r0
|
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std r9,96(r1)
|
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std r10,104(r1)
|
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std r9,INT_PARMS+48(r1)
|
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std r10,INT_PARMS+56(r1)
|
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/* I'm almost certain we don't have to save cr... be safe. */
|
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std r0,8(r1)
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std r0,FRAME_SIZE+8(r1)
|
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bl JUMPTARGET(_dl_fixup)
|
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#ifndef SHARED
|
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nop
|
||||
#endif
|
||||
/* Put the registers back. */
|
||||
ld r0,128+16(r1)
|
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ld r10,104(r1)
|
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ld r9,96(r1)
|
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ld r8,88(r1)
|
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ld r7,80(r1)
|
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ld r0,FRAME_SIZE+16(r1)
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ld r10,INT_PARMS+56(r1)
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ld r9,INT_PARMS+48(r1)
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ld r8,INT_PARMS+40(r1)
|
||||
ld r7,INT_PARMS+32(r1)
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mtlr r0
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ld r0,8(r1)
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ld r6,72(r1)
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ld r5,64(r1)
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ld r4,56(r1)
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ld r0,FRAME_SIZE+8(r1)
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ld r6,INT_PARMS+24(r1)
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||||
ld r5,INT_PARMS+16(r1)
|
||||
ld r4,INT_PARMS+8(r1)
|
||||
mtcrf 0xFF,r0
|
||||
/* Load the target address, toc and static chain reg from the function
|
||||
descriptor returned by fixup. */
|
||||
@ -70,11 +78,13 @@ EALIGN(_dl_runtime_resolve, 4, 0)
|
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ld r2,8(r3)
|
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mtctr r0
|
||||
ld r11,16(r3)
|
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ld r3,48(r1)
|
||||
ld r3,INT_PARMS+0(r1)
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/* Unwind the stack frame, and jump. */
|
||||
addi r1,r1,128
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addi r1,r1,FRAME_SIZE
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||||
bctr
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END(_dl_runtime_resolve)
|
||||
#undef FRAME_SIZE
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#undef INT_PARMS
|
||||
|
||||
/* Stack layout:
|
||||
+592 previous backchain
|
||||
@ -176,13 +186,13 @@ EALIGN(_dl_profile_resolve, 4, 0)
|
||||
/* Spill r30, r31 to preserve the link_map* and reloc_addr, in case we
|
||||
need to call _dl_call_pltexit. */
|
||||
std r31,-8(r1)
|
||||
cfi_offset(r31,-8)
|
||||
std r30,-16(r1)
|
||||
cfi_offset(r30,-16)
|
||||
/* We need to save the registers used to pass parameters, ie. r3 thru
|
||||
r10; the registers are saved in a stack frame. */
|
||||
stdu r1,-FRAME_SIZE(r1)
|
||||
cfi_adjust_cfa_offset (FRAME_SIZE)
|
||||
cfi_offset(r31,-8)
|
||||
cfi_offset(r30,-16)
|
||||
std r3,INT_PARMS+0(r1)
|
||||
mr r3,r11
|
||||
std r4,INT_PARMS+8(r1)
|
||||
@ -205,7 +215,7 @@ EALIGN(_dl_profile_resolve, 4, 0)
|
||||
std r10,INT_PARMS+56(r1)
|
||||
std r8,CALLING_SP(r1)
|
||||
/* I'm almost certain we don't have to save cr... be safe. */
|
||||
std r0,8(r1)
|
||||
std r0,FRAME_SIZE+8(r1)
|
||||
ld r12,.LC__dl_hwcap@toc(r2)
|
||||
#ifdef SHARED
|
||||
/* Load _rtld-global._dl_hwcap. */
|
||||
@ -265,7 +275,9 @@ L(saveFP):
|
||||
mr r30,r4
|
||||
std r0,0(r7)
|
||||
bl JUMPTARGET(_dl_profile_fixup)
|
||||
#ifndef SHARED
|
||||
nop
|
||||
#endif
|
||||
/* Test *framesizep > 0 to see if need to do pltexit processing. */
|
||||
ld r0,STACK_FRAME(r1)
|
||||
/* Put the registers back. */
|
||||
@ -306,7 +318,7 @@ L(restoreFXR):
|
||||
ld r8,INT_PARMS+40(r1)
|
||||
ld r7,INT_PARMS+32(r1)
|
||||
mtlr r0
|
||||
ld r0,8(r1)
|
||||
ld r0,FRAME_SIZE+8(r1)
|
||||
ld r6,INT_PARMS+24(r1)
|
||||
ld r5,INT_PARMS+16(r1)
|
||||
ld r4,INT_PARMS+8(r1)
|
||||
@ -370,7 +382,7 @@ L(restoreFXR2):
|
||||
ld r8,INT_PARMS+40(r1)
|
||||
ld r7,INT_PARMS+32(r1)
|
||||
mtlr r0
|
||||
ld r0,8(r1)
|
||||
ld r0,FRAME_SIZE+8(r1)
|
||||
ld r6,INT_PARMS+24(r1)
|
||||
ld r5,INT_PARMS+16(r1)
|
||||
ld r4,INT_PARMS+8(r1)
|
||||
@ -418,7 +430,9 @@ L(callpltexit):
|
||||
addi r5,r1,INT_PARMS
|
||||
addi r6,r1,INT_RTN
|
||||
bl JUMPTARGET(_dl_call_pltexit)
|
||||
#ifndef SHARED
|
||||
nop
|
||||
#endif
|
||||
/* Restore the return values from target function. */
|
||||
lwz r12,VR_VRSAVE(r1)
|
||||
ld r3,INT_RTN(r1)
|
||||
|
||||
@ -28,15 +28,12 @@ ENTRY(__copysign)
|
||||
/* double [f1] copysign (double [f1] x, double [f2] y);
|
||||
copysign(x,y) returns a value with the magnitude of x and
|
||||
with the sign bit of y. */
|
||||
stdu r1,-48(r1)
|
||||
cfi_adjust_cfa_offset (48)
|
||||
stfd fp2,24(r1)
|
||||
stfd fp2,56(r1)
|
||||
nop
|
||||
nop
|
||||
nop
|
||||
ld r3,24(r1)
|
||||
ld r3,56(r1)
|
||||
cmpdi r3,0
|
||||
addi r1,r1,48
|
||||
blt L(0)
|
||||
fabs fp1,fp1
|
||||
blr
|
||||
|
||||
@ -39,10 +39,33 @@
|
||||
#endif
|
||||
|
||||
.machine "altivec"
|
||||
ENTRY (setjmp)
|
||||
CALL_MCOUNT 1
|
||||
li r4,1 /* Set second argument to 1. */
|
||||
b JUMPTARGET (GLUE(__sigsetjmp,_ent))
|
||||
END (setjmp)
|
||||
|
||||
#if defined SHARED && !defined IS_IN_rtld && !defined __NO_VMX__
|
||||
/* When called from within libc we need a special version of _setjmp
|
||||
that saves r2 since the call won't go via a plt call stub. See
|
||||
bugz #269. __GI__setjmp is used in csu/libc-start.c when
|
||||
HAVE_CLEANUP_JMP_BUF is defined. */
|
||||
ENTRY (BP_SYM (__GI__setjmp))
|
||||
std r2,40(r1) /* Save the callers TOC in the save area. */
|
||||
cfi_endproc
|
||||
END_2 (BP_SYM (__GI__setjmp))
|
||||
/* Fall thru. */
|
||||
#endif
|
||||
|
||||
ENTRY (BP_SYM (_setjmp))
|
||||
CALL_MCOUNT 1
|
||||
li r4,0 /* Set second argument to 0. */
|
||||
b JUMPTARGET (GLUE(__sigsetjmp,_ent))
|
||||
END (BP_SYM (_setjmp))
|
||||
libc_hidden_def (_setjmp)
|
||||
|
||||
ENTRY (BP_SYM (__sigsetjmp))
|
||||
CALL_MCOUNT 2
|
||||
.globl JUMPTARGET(GLUE(__sigsetjmp,_ent))
|
||||
.hidden JUMPTARGET(GLUE(__sigsetjmp,_ent))
|
||||
JUMPTARGET(GLUE(__sigsetjmp,_ent)):
|
||||
CHECK_BOUNDS_BOTH_WIDE_LIT (r3, r8, r9, JB_SIZE)
|
||||
#ifdef PTR_MANGLE
|
||||
@ -190,7 +213,19 @@ L(no_vmx):
|
||||
#if defined NOT_IN_libc && defined IS_IN_rtld
|
||||
li r3,0
|
||||
blr
|
||||
#elif defined SHARED
|
||||
b JUMPTARGET (BP_SYM (__sigjmp_save))
|
||||
#else
|
||||
b JUMPTARGET (BP_SYM (__sigjmp_save))
|
||||
mflr r0
|
||||
std r0,16(r1)
|
||||
stdu r1,-112(r1)
|
||||
cfi_adjust_cfa_offset(112)
|
||||
cfi_offset(lr,16)
|
||||
bl JUMPTARGET (BP_SYM (__sigjmp_save))
|
||||
nop
|
||||
ld r0,112+16(r1)
|
||||
addi r1,r1,112
|
||||
mtlr r0
|
||||
blr
|
||||
#endif
|
||||
END (BP_SYM (__sigsetjmp))
|
||||
|
||||
@ -27,19 +27,32 @@
|
||||
|
||||
#else /* !NOT_IN_libc */
|
||||
/* Build a versioned object for libc. */
|
||||
default_symbol_version (__vmxsetjmp, setjmp, GLIBC_2.3.4)
|
||||
default_symbol_version (__vmx_setjmp,_setjmp,GLIBC_2.3.4)
|
||||
default_symbol_version (__vmx__sigsetjmp,__sigsetjmp,GLIBC_2.3.4)
|
||||
# define setjmp __vmxsetjmp
|
||||
# define _setjmp __vmx_setjmp
|
||||
# define __sigsetjmp __vmx__sigsetjmp
|
||||
# define __sigjmp_save __vmx__sigjmp_save
|
||||
# include "setjmp-common.S"
|
||||
strong_alias (__vmxsetjmp, __vmx__setjmp)
|
||||
strong_alias (__vmx__sigsetjmp, __setjmp)
|
||||
|
||||
# if defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_3, GLIBC_2_3_4)
|
||||
# undef setjmp
|
||||
# undef _setjmp
|
||||
# undef __sigsetjmp
|
||||
# undef __sigjmp_save
|
||||
# undef JB_SIZE
|
||||
# define __NO_VMX__
|
||||
symbol_version (__novmxsetjmp, setjmp, GLIBC_2.3)
|
||||
symbol_version (__novmx_setjmp,_setjmp,GLIBC_2.3);
|
||||
symbol_version (__novmx__sigsetjmp,__sigsetjmp,GLIBC_2.3)
|
||||
# define setjmp __novmxsetjmp
|
||||
# define _setjmp __novmx_setjmp
|
||||
# define __sigsetjmp __novmx__sigsetjmp
|
||||
# define __sigjmp_save __novmx__sigjmp_save
|
||||
# include "setjmp-common.S"
|
||||
strong_alias (__novmxsetjmp, __novmx__setjmp)
|
||||
# endif
|
||||
#endif /* !NOT_IN_libc */
|
||||
|
||||
@ -27,14 +27,28 @@
|
||||
.macro SAVE_ARG NARG
|
||||
.if \NARG
|
||||
SAVE_ARG \NARG-1
|
||||
std 2+\NARG,-72+8*(\NARG)(1)
|
||||
std 2+\NARG,40+8*(\NARG)(1)
|
||||
.endif
|
||||
.endm
|
||||
|
||||
.macro REST_ARG NARG
|
||||
.if \NARG
|
||||
REST_ARG \NARG-1
|
||||
ld 2+\NARG,40+8*(\NARG)(1)
|
||||
ld 2+\NARG,112+40+8*(\NARG)(1)
|
||||
.endif
|
||||
.endm
|
||||
|
||||
.macro CFI_SAVE_ARG NARG
|
||||
.if \NARG
|
||||
CFI_SAVE_ARG \NARG-1
|
||||
cfi_offset(2+\NARG,40+8*(\NARG))
|
||||
.endif
|
||||
.endm
|
||||
|
||||
.macro CFI_REST_ARG NARG
|
||||
.if \NARG
|
||||
CFI_REST_ARG \NARG-1
|
||||
cfi_restore(2+\NARG)
|
||||
.endif
|
||||
.endm
|
||||
|
||||
@ -46,11 +60,20 @@
|
||||
SAVE_ARG \NARG
|
||||
std r0,16(r1)
|
||||
stdu r1,-112(r1)
|
||||
cfi_adjust_cfa_offset(112)
|
||||
cfi_offset(lr,16)
|
||||
CFI_SAVE_ARG \NARG
|
||||
bl JUMPTARGET (_mcount)
|
||||
#ifndef SHARED
|
||||
nop
|
||||
#endif
|
||||
ld r0,128(r1)
|
||||
REST_ARG \NARG
|
||||
addi r1,r1,112
|
||||
mtlr r0
|
||||
addi r1,r1,112
|
||||
cfi_adjust_cfa_offset(-112)
|
||||
cfi_restore(lr)
|
||||
CFI_REST_ARG \NARG
|
||||
#endif
|
||||
.endm
|
||||
|
||||
@ -198,9 +221,37 @@ LT_LABELSUFFIX(name,_name_end): ; \
|
||||
ENTRY (name) \
|
||||
DO_CALL (SYS_ify (syscall_name));
|
||||
|
||||
#ifdef SHARED
|
||||
#define TAIL_CALL_SYSCALL_ERROR \
|
||||
b JUMPTARGET(__syscall_error)
|
||||
#else
|
||||
/* Static version might be linked into a large app with a toc exceeding
|
||||
64k. We can't put a toc adjusting stub on a plain branch, so can't
|
||||
tail call __syscall_error. */
|
||||
#define TAIL_CALL_SYSCALL_ERROR \
|
||||
.ifdef .Local_syscall_error; \
|
||||
b .Local_syscall_error; \
|
||||
.else; \
|
||||
.Local_syscall_error: \
|
||||
mflr 0; \
|
||||
std 0,16(1); \
|
||||
stdu 1,-112(1); \
|
||||
cfi_adjust_cfa_offset(112); \
|
||||
cfi_offset(lr,16); \
|
||||
bl JUMPTARGET(__syscall_error); \
|
||||
nop; \
|
||||
ld 0,112+16(1); \
|
||||
addi 1,1,112; \
|
||||
cfi_adjust_cfa_offset(-112); \
|
||||
mtlr 0; \
|
||||
cfi_restore(lr); \
|
||||
blr; \
|
||||
.endif
|
||||
#endif
|
||||
|
||||
#define PSEUDO_RET \
|
||||
bnslr+; \
|
||||
b JUMPTARGET(__syscall_error)
|
||||
TAIL_CALL_SYSCALL_ERROR
|
||||
|
||||
#define ret PSEUDO_RET
|
||||
|
||||
|
||||
@ -32,19 +32,16 @@ ENTRY (BP_SYM (__brk))
|
||||
CALL_MCOUNT 1
|
||||
DISCARD_BOUNDS (r3) /* the bounds are meaningless, so toss 'em. */
|
||||
|
||||
stdu r1,-64(r1)
|
||||
cfi_adjust_cfa_offset (64)
|
||||
std r3,48(r1)
|
||||
DO_CALL(SYS_ify(brk))
|
||||
ld r6,48(r1)
|
||||
ld r6,48(r1)
|
||||
ld r5,.LC__curbrk@toc(r2)
|
||||
std r3,0(r5)
|
||||
cmpld r6,r3
|
||||
addi r1,r1,64
|
||||
li r3,0
|
||||
blelr+
|
||||
li r3,ENOMEM
|
||||
b JUMPTARGET(__syscall_error)
|
||||
TAIL_CALL_SYSCALL_ERROR
|
||||
END (BP_SYM (__brk))
|
||||
|
||||
weak_alias (BP_SYM (__brk), BP_SYM (brk))
|
||||
|
||||
@ -46,35 +46,32 @@ ENTRY (BP_SYM (__clone))
|
||||
cror cr0*4+eq,cr1*4+eq,cr0*4+eq
|
||||
beq- cr0,L(badargs)
|
||||
|
||||
/* Set up stack frame for parent. */
|
||||
stdu r1,-80(r1)
|
||||
cfi_adjust_cfa_offset (80)
|
||||
std r29,56(r1)
|
||||
std r30,64(r1)
|
||||
std r31,72(r1)
|
||||
cfi_offset(r29,-56)
|
||||
cfi_offset(r30,-64)
|
||||
cfi_offset(r31,-72)
|
||||
/* Save some regs in parm save area. */
|
||||
#ifdef RESET_PID
|
||||
std r28,48(r1)
|
||||
cfi_offset(r28,-48)
|
||||
std r29,48(r1)
|
||||
#endif
|
||||
std r30,56(r1)
|
||||
std r31,64(r1)
|
||||
#ifdef RESET_PID
|
||||
cfi_offset(r29,48)
|
||||
#endif
|
||||
cfi_offset(r30,56)
|
||||
cfi_offset(r31,64)
|
||||
|
||||
/* Set up stack frame for child. */
|
||||
clrrdi r4,r4,4
|
||||
li r0,0
|
||||
stdu r0,-48(r4) /* min stack frame is 48 bytes per ABI */
|
||||
stdu r0,-112(r4) /* min stack frame is 112 bytes per ABI */
|
||||
|
||||
/* Save fn, args, stack across syscall. */
|
||||
mr r29,r3 /* Function in r29. */
|
||||
mr r30,r4 /* Stack pointer in r30. */
|
||||
mr r30,r3 /* Function in r30. */
|
||||
#ifdef RESET_PID
|
||||
mr r28,r5 /* Flags in r28. */
|
||||
mr r29,r5 /* Flags in r29. */
|
||||
#endif
|
||||
mr r31,r6 /* Argument in r31. */
|
||||
|
||||
/* 'flags' argument is first parameter to clone syscall. (The other
|
||||
argument is the stack pointer, already in r4.) */
|
||||
/* 'flags' argument is first parameter to clone syscall.
|
||||
Second is the stack pointer, already in r4. */
|
||||
mr r3,r5
|
||||
/* Move the parent_tid, child_tid and tls arguments. */
|
||||
mr r5,r7
|
||||
@ -94,9 +91,9 @@ ENTRY (BP_SYM (__clone))
|
||||
bne- cr1,L(parent) /* The '-' is to minimise the race. */
|
||||
|
||||
#ifdef RESET_PID
|
||||
andis. r0,r28,CLONE_THREAD>>16
|
||||
andis. r0,r29,CLONE_THREAD>>16
|
||||
bne+ cr0,L(oldpid)
|
||||
andi. r0,r28,CLONE_VM
|
||||
andi. r0,r29,CLONE_VM
|
||||
li r3,-1
|
||||
bne- cr0,L(nomoregetpid)
|
||||
DO_CALL(SYS_ify(getpid))
|
||||
@ -108,8 +105,8 @@ L(oldpid):
|
||||
|
||||
std r2,40(r1)
|
||||
/* Call procedure. */
|
||||
ld r0,0(r29)
|
||||
ld r2,8(r29)
|
||||
ld r0,0(r30)
|
||||
ld r2,8(r30)
|
||||
mtctr r0
|
||||
mr r3,r31
|
||||
bctrl
|
||||
@ -119,25 +116,35 @@ L(oldpid):
|
||||
b JUMPTARGET(__GI__exit)
|
||||
#else
|
||||
b JUMPTARGET(_exit)
|
||||
/* We won't ever get here but provide a nop so that the linker
|
||||
will insert a toc adjusting stub if necessary. */
|
||||
nop
|
||||
#endif
|
||||
|
||||
L(badargs):
|
||||
cfi_startproc
|
||||
li r3,EINVAL
|
||||
TAIL_CALL_SYSCALL_ERROR
|
||||
|
||||
L(parent):
|
||||
/* Parent. Restore registers & return. */
|
||||
#ifdef RESET_PID
|
||||
ld r28,48(r1)
|
||||
cfi_offset(r29,48)
|
||||
#endif
|
||||
ld r31,72(r1)
|
||||
ld r30,64(r1)
|
||||
ld r29,56(r1)
|
||||
addi r1,r1,80
|
||||
bnslr+
|
||||
b JUMPTARGET(__syscall_error)
|
||||
cfi_offset(r30,56)
|
||||
cfi_offset(r31,64)
|
||||
#ifdef RESET_PID
|
||||
ld r29,48(r1)
|
||||
#endif
|
||||
ld r30,56(r1)
|
||||
ld r31,64(r1)
|
||||
#ifdef RESET_PID
|
||||
cfi_restore(r29)
|
||||
#endif
|
||||
cfi_restore(r30)
|
||||
cfi_restore(r31)
|
||||
PSEUDO_RET
|
||||
|
||||
L(badargs):
|
||||
li r3,EINVAL
|
||||
b JUMPTARGET(__syscall_error)
|
||||
|
||||
cfi_startproc
|
||||
END (BP_SYM (__clone))
|
||||
|
||||
weak_alias (BP_SYM (__clone), BP_SYM (clone))
|
||||
|
||||
@ -154,6 +154,7 @@ L(BADSTATUS):
|
||||
b JUMPTARGET(__GI_exit);
|
||||
#else
|
||||
b JUMPTARGET(exit);
|
||||
nop
|
||||
#endif
|
||||
|
||||
/* The address of the exit code is in the link register. Store the lr
|
||||
|
||||
@ -39,8 +39,6 @@
|
||||
#define NARGS 3
|
||||
#endif
|
||||
|
||||
#define stackblock 80 /* offset to socket parm area. */
|
||||
|
||||
#ifndef __socket
|
||||
# ifndef NO_WEAK_ALIAS
|
||||
# define __socket P(__,socket)
|
||||
@ -49,11 +47,14 @@
|
||||
# endif
|
||||
#endif
|
||||
|
||||
#define FRAMESIZE 128
|
||||
#define stackblock FRAMESIZE+48 /* offset to parm save area. */
|
||||
|
||||
.text
|
||||
ENTRY(__socket)
|
||||
CALL_MCOUNT NARGS
|
||||
stdu r1,-144(r1)
|
||||
cfi_adjust_cfa_offset(144)
|
||||
stdu r1,-FRAMESIZE(r1)
|
||||
cfi_adjust_cfa_offset(FRAMESIZE)
|
||||
#if NARGS >= 1
|
||||
std r3,stackblock(r1)
|
||||
#endif
|
||||
@ -87,33 +88,39 @@ ENTRY(__socket)
|
||||
bne- .Lsocket_cancel
|
||||
#endif
|
||||
|
||||
li r3,P(SOCKOP_,socket)
|
||||
li r3,P(SOCKOP_,socket)
|
||||
addi r4,r1,stackblock
|
||||
DO_CALL(SYS_ify(socketcall))
|
||||
addi r1,r1,144
|
||||
addi r1,r1,FRAMESIZE
|
||||
cfi_adjust_cfa_offset(-FRAMESIZE)
|
||||
PSEUDO_RET
|
||||
|
||||
#if defined NEED_CANCELLATION && defined CENABLE
|
||||
.Lsocket_cancel:
|
||||
cfi_adjust_cfa_offset(FRAMESIZE)
|
||||
mflr r9
|
||||
std r9,144+16(r1)
|
||||
std r9,FRAMESIZE+16(r1)
|
||||
cfi_offset (lr, 16)
|
||||
CENABLE
|
||||
std r3,72(r1)
|
||||
li r3,P(SOCKOP_,socket)
|
||||
std r3,120(r1)
|
||||
li r3,P(SOCKOP_,socket)
|
||||
addi r4,r1,stackblock
|
||||
DO_CALL(SYS_ify(socketcall))
|
||||
mfcr r0
|
||||
std r3,64(r1)
|
||||
std r0,8(r1)
|
||||
ld r3,72(r1)
|
||||
std r3,112(r1)
|
||||
std r0,FRAMESIZE+8(r1)
|
||||
cfi_offset (cr, 8)
|
||||
ld r3,120(r1)
|
||||
CDISABLE
|
||||
ld r4,144+16(r1)
|
||||
ld r0,8(r1)
|
||||
ld r3,64(r1)
|
||||
ld r4,FRAMESIZE+16(r1)
|
||||
ld r0,FRAMESIZE+8(r1)
|
||||
ld r3,112(r1)
|
||||
mtlr r4
|
||||
mtcr r0
|
||||
addi r1,r1,144
|
||||
addi r1,r1,FRAMESIZE
|
||||
cfi_adjust_cfa_offset(-FRAMESIZE)
|
||||
cfi_restore(lr)
|
||||
cfi_restore(cr)
|
||||
PSEUDO_RET
|
||||
#endif
|
||||
PSEUDO_END (__socket)
|
||||
|
||||
@ -39,7 +39,7 @@ ENTRY (__vfork)
|
||||
bnslr+
|
||||
/* Check if vfork syscall is known at all. */
|
||||
cmpdi r3,ENOSYS
|
||||
bne JUMPTARGET(__syscall_error)
|
||||
bne .Local_syscall_error
|
||||
|
||||
# endif
|
||||
#endif
|
||||
|
||||
Loading…
Reference in New Issue
Block a user