diff options
| author | Peter Wemm <peter@FreeBSD.org> | 2004-06-10 22:00:58 +0000 |
|---|---|---|
| committer | Peter Wemm <peter@FreeBSD.org> | 2004-06-10 22:00:58 +0000 |
| commit | 6d05d7c75aaafc763b19919b72c3a269260b2bff (patch) | |
| tree | ffe1657029f6827b7285a8f53547ed3a1423a4b1 /sys/amd64 | |
| parent | 397f6b1e7fc1706fe731589a57d71ad6382f299c (diff) | |
| download | src-6d05d7c75aaafc763b19919b72c3a269260b2bff.tar.gz src-6d05d7c75aaafc763b19919b72c3a269260b2bff.zip | |
Make profiling work for varargs functions.. %al is an additional argument
which indicates the number of xmm registers used in the varargs. This
stops the explosion that happened when profiling printf() etc.
Notes
Notes:
svn path=/head/; revision=130321
Diffstat (limited to 'sys/amd64')
| -rw-r--r-- | sys/amd64/include/profile.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/amd64/include/profile.h b/sys/amd64/include/profile.h index 555e2f1a77f1..f53927c11a2a 100644 --- a/sys/amd64/include/profile.h +++ b/sys/amd64/include/profile.h @@ -108,10 +108,12 @@ static void _mcount pushq %rcx \n\ pushq %r8 \n\ pushq %r9 \n\ + pushq %rax \n\ movq 8(%rbp),%rsi \n\ movq (%rbp),%rdi \n\ movq 8(%rdi),%rdi \n\ call _mcount \n\ + popq %rax \n\ popq %r9 \n\ popq %r8 \n\ popq %rcx \n\ |