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authorAlexey Brodkin <Alexey.Brodkin@synopsys.com>2016-07-29 12:17:18 +0300
committerWaldemar Brodkorb <wbx@uclibc-ng.org>2016-07-31 12:50:54 +0200
commit25f4ae1de711b2001b4958d65e77b6dba222e7b5 (patch)
tree223fae89584a3cfede3e2df707e0966be8398cce /libc/sysdeps/linux
parentae01de4d1d1e16e46c5180ba7fb081792081996a (diff)
arc: clone: Recover PID correctly
Caught by tst-getpid1 test from uClibc's test-suite. It looks like original implementation was not correct. The code in question is supposed to recover PID of the new thread. And by no means that could happen with clone() syscall while getpid() does exactly this. Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> Acked-by: Vineet Gupta <vgupta@synopsys.com> Reported-by: Eugeniy Paltsev <paltsev@synopsys.com>
Diffstat (limited to 'libc/sysdeps/linux')
-rw-r--r--libc/sysdeps/linux/arc/clone.S2
1 files changed, 1 insertions, 1 deletions
diff --git a/libc/sysdeps/linux/arc/clone.S b/libc/sysdeps/linux/arc/clone.S
index 3c1388ec7..dbb3fa756 100644
--- a/libc/sysdeps/linux/arc/clone.S
+++ b/libc/sysdeps/linux/arc/clone.S
@@ -72,7 +72,7 @@ ENTRY(clone)
and_s r2, r2, r12
brne r2, r12, .Lgo_thread
- mov r8, __NR_clone
+ mov r8, __NR_getpid
ARC_TRAP_INSN ; r0 has PID
THREAD_SELF r1 ; Get to struct pthread (just before TCB)
st r0, [r1, PTHREAD_PID]