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authorElliott Hughes <enh@google.com>2014-09-08 15:25:01 -0700
committerElliott Hughes <enh@google.com>2014-09-08 16:46:50 -0700
commit011e111d299284b65af07add523a9dccac356244 (patch)
tree2b30ac16dffb0cda5da6de86f73075813447ee5b /libc/arch-arm64/syscalls/__reboot.S
parent201f36d23bb778b29c8d305fa40a41990e0487bc (diff)
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Ensure __set_errno is still visible on LP32.
The use of the .hidden directive to avoid going via the PLT for __set_errno had the side-effect of actually making __set_errno hidden (which is odd because assembler directives don't usually affect symbols defined in a different file --- you can't even create a weak reference to a symbol that's defined in a different file). This change switches the system call stubs over to a new always-hidden __set_errno_internal and has a visible __set_errno on LP32 just for binary compatibility with old NDK apps. (cherry-pick of 7efad83d430f4d824f2aaa75edea5106f6ff8aae.) Bug: 17423135 Change-Id: I6b6d7a05dda85f923d22e5ffd169a91e23499b7b
Diffstat (limited to 'libc/arch-arm64/syscalls/__reboot.S')
-rw-r--r--libc/arch-arm64/syscalls/__reboot.S4
1 files changed, 1 insertions, 3 deletions
diff --git a/libc/arch-arm64/syscalls/__reboot.S b/libc/arch-arm64/syscalls/__reboot.S
index 04b18c9..79cd5be 100644
--- a/libc/arch-arm64/syscalls/__reboot.S
+++ b/libc/arch-arm64/syscalls/__reboot.S
@@ -2,15 +2,13 @@
#include <private/bionic_asm.h>
- .hidden __set_errno
-
ENTRY(__reboot)
mov x8, __NR_reboot
svc #0
cmn x0, #(MAX_ERRNO + 1)
cneg x0, x0, hi
- b.hi __set_errno
+ b.hi __set_errno_internal
ret
END(__reboot)