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Diffstat (limited to 'sysdeps/unix/sysv/linux/i386/clone.S')
-rw-r--r--sysdeps/unix/sysv/linux/i386/clone.S6
1 files changed, 4 insertions, 2 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/clone.S b/sysdeps/unix/sysv/linux/i386/clone.S
index 1f7417effd..94c6a72548 100644
--- a/sysdeps/unix/sysv/linux/i386/clone.S
+++ b/sysdeps/unix/sysv/linux/i386/clone.S
@@ -61,8 +61,10 @@ ENTRY (BP_SYM (__clone))
jz SYSCALL_ERROR_LABEL
#endif
- /* Insert the argument onto the new stack. */
- subl $16,%ecx
+ /* Insert the argument onto the new stack. Make sure the new
+ thread is started with an alignment of (mod 16). */
+ andl $0xfffffff0, %ecx
+ subl $24,%ecx
movl ARG(%esp),%eax /* no negative argument counts */
movl %eax,12(%ecx)