diff options
Diffstat (limited to 'REORG.TODO/sysdeps/i386/setjmp.S')
-rw-r--r-- | REORG.TODO/sysdeps/i386/setjmp.S | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/i386/setjmp.S b/REORG.TODO/sysdeps/i386/setjmp.S new file mode 100644 index 0000000000..738a899e8b --- /dev/null +++ b/REORG.TODO/sysdeps/i386/setjmp.S @@ -0,0 +1,58 @@ +/* setjmp for i386. + Copyright (C) 1995-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <sysdep.h> +#include <jmpbuf-offsets.h> +#include <asm-syntax.h> +#include <stap-probe.h> + +#define PARMS 4 /* no space for saved regs */ +#define JMPBUF PARMS +#define SIGMSK JMPBUF+4 + +ENTRY (__sigsetjmp) + + movl JMPBUF(%esp), %eax + + /* Save registers. */ + movl %ebx, (JB_BX*4)(%eax) + movl %esi, (JB_SI*4)(%eax) + movl %edi, (JB_DI*4)(%eax) + leal JMPBUF(%esp), %ecx /* Save SP as it will be after we return. */ +#ifdef PTR_MANGLE + PTR_MANGLE (%ecx) +#endif + movl %ecx, (JB_SP*4)(%eax) + movl 0(%esp), %ecx /* Save PC we are returning to now. */ + LIBC_PROBE (setjmp, 3, 4@%eax, -4@SIGMSK(%esp), 4@%ecx) +#ifdef PTR_MANGLE + PTR_MANGLE (%ecx) +#endif + movl %ecx, (JB_PC*4)(%eax) + movl %ebp, (JB_BP*4)(%eax) /* Save caller's frame pointer. */ + +#if IS_IN (rtld) + /* In ld.so we never save the signal mask. */ + xorl %eax, %eax + ret +#else + /* Make a tail call to __sigjmp_save; it takes the same args. */ + jmp __sigjmp_save +#endif +END (__sigsetjmp) +hidden_def (__sigsetjmp) |