diff options
Diffstat (limited to 'sys/amd64/include/asm.h')
| -rw-r--r-- | sys/amd64/include/asm.h | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/sys/amd64/include/asm.h b/sys/amd64/include/asm.h index bebc4df3d2c5..7b66e9446ff3 100644 --- a/sys/amd64/include/asm.h +++ b/sys/amd64/include/asm.h @@ -60,25 +60,36 @@ #define _START_ENTRY .text; .p2align 4,0x90 #define _ENTRY(x) _START_ENTRY; \ - .globl CNAME(x); .type CNAME(x),@function; CNAME(x): + .globl CNAME(x); .type CNAME(x),@function; CNAME(x):; \ + .cfi_startproc #ifdef PROF #define ALTENTRY(x) _ENTRY(x); \ - pushq %rbp; movq %rsp,%rbp; \ + pushq %rbp; \ + .cfi_def_cfa_offset 16; \ + .cfi_offset %rbp, -16; \ + movq %rsp,%rbp; \ call PIC_PLT(HIDENAME(mcount)); \ popq %rbp; \ + .cfi_restore %rbp; \ + .cfi_def_cfa_offset 8; \ jmp 9f #define ENTRY(x) _ENTRY(x); \ - pushq %rbp; movq %rsp,%rbp; \ + pushq %rbp; \ + .cfi_def_cfa_offset 16; \ + .cfi_offset %rbp, -16; \ + movq %rsp,%rbp; \ call PIC_PLT(HIDENAME(mcount)); \ popq %rbp; \ + .cfi_restore %rbp; \ + .cfi_def_cfa_offset 8; \ 9: #else #define ALTENTRY(x) _ENTRY(x) #define ENTRY(x) _ENTRY(x) #endif -#define END(x) .size x, . - x +#define END(x) .size x, . - x; .cfi_endproc /* * WEAK_REFERENCE(): create a weak reference alias from sym. * The macro is not a general asm macro that takes arbitrary names, |