diff options
| author | Greg McGary <greg@mcgary.org> | 2000-06-29 22:55:31 +0000 |
|---|---|---|
| committer | Greg McGary <greg@mcgary.org> | 2000-06-29 22:55:31 +0000 |
| commit | e5f88e0ca0d2762ca87263ee01d13e9950de403d (patch) | |
| tree | 88f266651d99e6be69fd69c46935bfb81bf33676 /sysdeps/i386/bp-asm.h | |
| parent | d3d89ab3a83ad036d7ea4794d044a1e710598fcd (diff) | |
* sysdeps/i386/bp-asm.h (PCOFF): New constant.
(POP_ERRNO_LOCATION_RETURN): Fold insns.
* sysdeps/i386/bits/setjmp.h (JB_SIZE): New constant.
(PUSH_SIGNAL_MASK): New macro.
* sysdeps/i386/__longjmp.S (__longjmp): Wrap symbol in BP_SYM ().
LEAVE is unnecessary. Check bounds of jmp_buf.
* sysdeps/i386/elf/setjmp.S: Call PUSH_SIGNAL_MASK. Wrap symbols
in BP_SYM (). Check bounds of jmp_buf. Don't call LEAVE until
immediately before tail-call.
* sysdeps/i386/setjmp.S: Likewise.
* sysdeps/i386/bsd-_setjmp.S: Likewise.
* sysdeps/i386/bsd-setjmp.S: Likewise.
2000-06-29 Greg McGary <greg@mcgary.org>
* sysdeps/i386/bp-asm.h (PCOFF): New constant.
(POP_ERRNO_LOCATION_RETURN): Fold insns.
* sysdeps/i386/bits/setjmp.h (JB_SIZE): New constant.
(PUSH_SIGNAL_MASK): New macro.
* sysdeps/i386/__longjmp.S (__longjmp): Wrap symbol in BP_SYM ().
LEAVE is unnecessary. Check bounds of jmp_buf.
* sysdeps/i386/elf/setjmp.S: Call PUSH_SIGNAL_MASK. Wrap symbols
in BP_SYM (). Check bounds of jmp_buf. Don't call LEAVE until
immediately before tail-call.
* sysdeps/i386/setjmp.S: Likewise.
* sysdeps/i386/bsd-_setjmp.S: Likewise.
* sysdeps/i386/bsd-setjmp.S: Likewise.
Diffstat (limited to 'sysdeps/i386/bp-asm.h')
| -rw-r--r-- | sysdeps/i386/bp-asm.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/sysdeps/i386/bp-asm.h b/sysdeps/i386/bp-asm.h index 197c6da88c..bde1f6a14a 100644 --- a/sysdeps/i386/bp-asm.h +++ b/sysdeps/i386/bp-asm.h @@ -43,6 +43,8 @@ /* Stack space overhead of procedure-call linkage: return address and frame pointer. */ # define LINKAGE 8 +/* Stack offset of return address after calling ENTER. */ +# define PCOFF 4 /* Int 5 is the "bound range" exception also raised by the "bound" instruction. */ @@ -106,8 +108,7 @@ argument, but we must pop the space for the BP itself. We also dereference the return value in order to dig out the pointer value. */ # define POP_ERRNO_LOCATION_RETURN \ - movl (%esp), %eax; \ - addl $4, %esp; \ + popl %eax; \ addl $8, %esp # else /* !__BOUNDED_POINTERS__ */ @@ -123,6 +124,8 @@ # define LEAVE /* Stack space overhead of procedure-call linkage: return address only. */ # define LINKAGE 4 +/* Stack offset of return address after calling ENTER. */ +# define PCOFF 0 # define CHECK_BOUNDS_LOW(VAL_REG, BP_MEM) # define CHECK_BOUNDS_HIGH(VAL_REG, BP_MEM, Jcc) |