diff options
Diffstat (limited to 'sysdeps/i386/bits/setjmp.h')
| -rw-r--r-- | sysdeps/i386/bits/setjmp.h | 26 |
1 files changed, 24 insertions, 2 deletions
diff --git a/sysdeps/i386/bits/setjmp.h b/sysdeps/i386/bits/setjmp.h index 2f5b44531a..327e5670ac 100644 --- a/sysdeps/i386/bits/setjmp.h +++ b/sysdeps/i386/bits/setjmp.h @@ -1,4 +1,4 @@ -/* Copyright (C) 1997, 1998 Free Software Foundation, Inc. +/* Copyright (C) 1997, 1998, 2000 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 @@ -29,9 +29,31 @@ # define JB_BP 3 # define JB_SP 4 # define JB_PC 5 +# define JB_SIZE 24 #endif -#ifndef _ASM +#ifdef _ASM +/* We internally convert all setjmp (buf) calls to sigsetjmp (buf, mask), + so we must shift with the call frame to insert the mask argument. */ +# if __BOUNDED_POINTERS__ +# define PUSH_SIGNAL_MASK(MASK) \ + popl %eax; /* return address */ \ + popl %ecx; /* jmp_buf value */ \ + popl %edx; /* jmp_buf low bound */ \ + pushl 0(%esp); /* jmp_buf high bound */ \ + movel $MASK, 4(%esp); \ + pushl %edx; \ + pushl %ecx; \ + pushl %eax +# else +# define PUSH_SIGNAL_MASK(MASK) \ + popl %eax; /* return address */ \ + popl %ecx; /* jmp_buf */ \ + pushl $MASK; \ + pushl %ecx; \ + pushl %eax +# endif +#else typedef int __jmp_buf[6]; #endif |