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827b70873b
* elf/rtld.c: Define __pointer_chk_guard_local and if necessary __pointer_chk_guard. (_rtld_global_ro): Initialize _dl_pointer_guard. (dl_main): Initialize __pointer_chk_guard_local and either __pointer_chk_guard or TLS value if necessary. (process_envvars): Recognize and handle LD_POINTER_GUARD. * sysdeps/generic/ldsodefs.h (rtld_global_ro): Add _dl_pointer_guard. * sysdeps/i386/__longjmp.S: Use PTR_DEMANGLE for PC if defined. * sysdeps/x86_64/__longjmp.S: Likewise. * sysdeps/i386/bsd-_setjmp.S: Use PTR_MANGLE for PC if defined. * sysdeps/i386/bsd-_setjmp.S: Likewise. * sysdeps/i386/setjmp.S: Likewise. [IS_IN_rtld]: Avoid call to __sigjmp_save. * sysdeps/i386/setjmp.S: Likewise. * sysdeps/unix/sysv/linux/i386/sysdep.h: Define PTR_MANGLE and PTR_DEMANGLE. * sysdeps/unix/sysv/linux/x86_64/sysdep.h: Likewise. * sysdeps/i386/elf/setjmp.S: Removed. * sysdeps/i386/elf/bsd-setjmp.S: Removed.
58 lines
1.8 KiB
ArmAsm
58 lines
1.8 KiB
ArmAsm
/* Copyright (C) 2001, 2004, 2005 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 <sysdep.h>
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#define _ASM
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#define _SETJMP_H
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#include <bits/setjmp.h>
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#include <asm-syntax.h>
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/* Jump to the position specified by ENV, causing the
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setjmp call there to return VAL, or 1 if VAL is 0.
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void __longjmp (__jmp_buf env, int val). */
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ENTRY(__longjmp)
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/* Restore registers. */
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/* We add unwind information for the target here. */
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cfi_def_cfa(%rdi, 0)
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cfi_offset(%rbx,JB_RBX*8)
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cfi_offset(%rbp,JB_RBP*8)
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cfi_offset(%r12,JB_R12*8)
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cfi_offset(%r13,JB_R13*8)
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cfi_offset(%r14,JB_R14*8)
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cfi_offset(%r15,JB_R15*8)
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cfi_offset(%rsp,JB_RSP*8)
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cfi_offset(%rip,JB_PC*8)
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movq (JB_RBX*8)(%rdi),%rbx
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movq (JB_RBP*8)(%rdi),%rbp
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movq (JB_R12*8)(%rdi),%r12
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movq (JB_R13*8)(%rdi),%r13
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movq (JB_R14*8)(%rdi),%r14
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movq (JB_R15*8)(%rdi),%r15
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/* Set return value for setjmp. */
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test %esi,%esi
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mov $01,%eax
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cmove %eax,%esi
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mov %esi, %eax
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movq (JB_PC*8)(%rdi),%rdx
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movq (JB_RSP*8)(%rdi),%rsp
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#ifdef PTR_DEMANGLE
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PTR_DEMANGLE (%rdx)
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#endif
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jmpq *%rdx
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END (BP_SYM (__longjmp))
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