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authorRich Felker <dalias@aerifal.cx>2011-04-22 18:48:57 -0400
committerRich Felker <dalias@aerifal.cx>2011-04-22 18:48:57 -0400
commite6cc1d6c0e66970c7445df4f16a729f019d30efd (patch)
treea0222a756b325a2e910aebad3cb58f4f3898a78c
parentcbb65af6ae2fd129102e2cc27e29d23df7580c97 (diff)
downloadmusl-e6cc1d6c0e66970c7445df4f16a729f019d30efd.tar.gz
fix initial stack alignment in new threads on x86_64
-rw-r--r--src/thread/x86_64/clone.s2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/thread/x86_64/clone.s b/src/thread/x86_64/clone.s
index 3cefd933..e006bccd 100644
--- a/src/thread/x86_64/clone.s
+++ b/src/thread/x86_64/clone.s
@@ -5,7 +5,7 @@
/* rdi = child_stack, rsi = start, rdx = pthread_struct */
__uniclone:
subq $8,%rsp /* pad parent stack to prevent branch later */
- subq $16,%rdi /* grow child_stack */
+ subq $24,%rdi /* grow child_stack */
mov %rsi,8(%rdi) /* push start onto child_stack as return ptr */
mov %rdx,0(%rdi) /* push pthread_struct onto child_stack */
mov %rdx,%r8 /* r8 = tls */