d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Fixed the profiling version ALTENTRY(). Again. The previous version

Browse Source 
didn't set up the frame pointer before calling mcount, and then jumped
to the wrong place in ENTRY() to defeat the point of the jump.
This commit is contained in:
Bruce Evans 2000-01-25 09:01:55 +00:00
parent 615e071ef3
commit be16a3aba0
2 changed files with 18 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
sys/amd64/include/asm.h
View File

@ -84,15 +84,19 @@
.globl CNAME(x); .type CNAME(x),@function; CNAME(x):
#ifdef PROF
#define ENTRY(x) _ENTRY(x); 9: \
#define ALTENTRY(x) _ENTRY(x); \
pushl %ebp; movl %esp,%ebp; \
call PIC_PLT(HIDENAME(mcount)); \
popl %ebp
#define ALTENTRY(x) _ENTRY(x) ; call PIC_PLT(HIDENAME(mcount)) ; jmp 9f
popl %ebp; \
jmp 9f
#define ENTRY(x) _ENTRY(x); \
pushl %ebp; movl %esp,%ebp; \
call PIC_PLT(HIDENAME(mcount)); \
popl %ebp; \
9:
#else
#define ALTENTRY(x) _ENTRY(x)
#define ENTRY(x) _ENTRY(x)
#define ALTENTRY(x) _ENTRY(x)
#endif
#define RCSID(x) .text; .asciz x

14
sys/i386/include/asm.h
View File

@ -84,15 +84,19 @@
.globl CNAME(x); .type CNAME(x),@function; CNAME(x):
#ifdef PROF
#define ENTRY(x) _ENTRY(x); 9: \
#define ALTENTRY(x) _ENTRY(x); \
pushl %ebp; movl %esp,%ebp; \
call PIC_PLT(HIDENAME(mcount)); \
popl %ebp
#define ALTENTRY(x) _ENTRY(x) ; call PIC_PLT(HIDENAME(mcount)) ; jmp 9f
popl %ebp; \
jmp 9f
#define ENTRY(x) _ENTRY(x); \
pushl %ebp; movl %esp,%ebp; \
call PIC_PLT(HIDENAME(mcount)); \
popl %ebp; \
9:
#else
#define ALTENTRY(x) _ENTRY(x)
#define ENTRY(x) _ENTRY(x)
#define ALTENTRY(x) _ENTRY(x)
#endif
#define RCSID(x) .text; .asciz x