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authorUlrich Drepper <drepper@redhat.com>2002-11-22 00:01:03 +0000
committerUlrich Drepper <drepper@redhat.com>2002-11-22 00:01:03 +0000
commit56c910668cff9131a365b98e9a91e636aace337a (patch)
treea47f47d666b91ea3a2a3085fe9ce124c3d46187f
parent714a17c3279caeced94803d21b07114f243ebe74 (diff)
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Add support for CLONE_CHILD_*TID flags.
-rw-r--r--sysdeps/unix/sysv/linux/i386/clone.S21
1 files changed, 13 insertions, 8 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/clone.S b/sysdeps/unix/sysv/linux/i386/clone.S
index 8f655a7305..c0d5c03568 100644
--- a/sysdeps/unix/sysv/linux/i386/clone.S
+++ b/sysdeps/unix/sysv/linux/i386/clone.S
@@ -35,8 +35,9 @@
#define STACK FUNC+4
#define FLAGS STACK+PTR_SIZE
#define ARG FLAGS+4
-#define TID ARG+PTR_SIZE
-#define TLS TID+PTR_SIZE
+#define PTID ARG+PTR_SIZE
+#define TLS PTID+PTR_SIZE
+#define CTID TLS+PTR_SIZE
#define __NR_clone 120
#define SYS_clone 120
@@ -61,25 +62,29 @@ ENTRY (BP_SYM (__clone))
#endif
/* Insert the argument onto the new stack. */
- subl $12,%ecx
+ subl $16,%ecx
movl ARG(%esp),%eax /* no negative argument counts */
- movl %eax,8(%ecx)
+ movl %eax,12(%ecx)
/* Save the function pointer as the zeroth argument.
It will be popped off in the child in the ebx frobbing below. */
movl FUNC(%esp),%eax
- movl %eax,4(%ecx)
+ movl %eax,8(%ecx)
/* Don't leak any information. */
+ movl $0,4(%ecx)
movl $0,(%ecx)
/* Do the system call */
pushl %ebx
pushl %esi
- movl TLS+8(%esp),%esi
- movl TID+8(%esp),%edx
- movl FLAGS+8(%esp),%ebx
+ pushl %edi
+ movl TLS+12(%esp),%esi
+ movl PTID+12(%esp),%edx
+ movl FLAGS+12(%esp),%ebx
+ movl CTID+12(%esp),%edi
movl $SYS_ify(clone),%eax
int $0x80
+ popl %edi
popl %esi
popl %ebx