History log of /bionic/libc/arch-arm/syscalls/__accept4.S
Revision Date Author Comments
f5a9123d9f365e3a72ac9f2a3921f439541a87e8 28-Apr-2016 Christopher Ferris <cferris@google.com> Add unwind information for r7 in arm syscalls.

It turns out that clang can emit code where the sp is saved in the r7
register on arm. Unfortunately, a lot of our syscalls overwrite that
value while the syscall is executing, so unwinding through that syscall
fails.

Update the syscall generation code to add unwinding information for
these uses.

Bug: 28411713
(cherry picked from commit 6e45d37decbbaf78ed4685213aebb1c9b5ccf8c2)

Change-Id: Ib775effc44c4113735fe9032b0602b9d63e3e390
6e45d37decbbaf78ed4685213aebb1c9b5ccf8c2 28-Apr-2016 Christopher Ferris <cferris@google.com> Add unwind information for r7 in arm syscalls.

It turns out that clang can emit code where the sp is saved in the r7
register on arm. Unfortunately, a lot of our syscalls overwrite that
value while the syscall is executing, so unwinding through that syscall
fails.

Update the syscall generation code to add unwinding information for
these uses.

Bug: 28411713
Change-Id: Id51a5d43c058631bb50834527f93fa299bbcf759
011e111d299284b65af07add523a9dccac356244 09-Sep-2014 Elliott Hughes <enh@google.com> 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
7efad83d430f4d824f2aaa75edea5106f6ff8aae 09-Sep-2014 Elliott Hughes <enh@google.com> 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.

Bug: 17423135
Change-Id: I6b6d7a05dda85f923d22e5ffd169a91e23499b7b
e35fd48a832cddbedcf84773fd1922f735ae7829 09-Aug-2014 Dan Albert <danalbert@google.com> Make __set_errno hidden in asm.

This fixes the build after the -Bsymbolic change.

Bug: 16853291
Change-Id: I989c9fec3c32e0289ea257a3bd2b7fd2709b6ce2
(cherry picked from commit bc9f9f25bf1247a6a638a2a2df8441bdd9fabad7)
bc9f9f25bf1247a6a638a2a2df8441bdd9fabad7 09-Aug-2014 Dan Albert <danalbert@google.com> Make __set_errno hidden in asm.

This fixes the build after the -Bsymbolic change.

Bug: 16853291
Change-Id: I989c9fec3c32e0289ea257a3bd2b7fd2709b6ce2
903b78873a744d3fba187e4bd22008ba21162e51 19-May-2014 Sreeram Ramachandran <sreeram@google.com> Mark sockets on creation (socket()) and accept4().

Remove the separate syscall for accept() and implement it as accept4(..., 0).

Change-Id: Ib0b8f5d7c5013b91eae6bbc3847852eb355c7714