| 605ee81b0660760dd191f2e2de4c4c92dca5192f |
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13-Apr-2015 |
Christopher Ferris <cferris@google.com> |
Add missing cfi directives for x86 assembler.
Change-Id: I80d3e33a71bbaeab5f39b667ebe61e865fd54b80
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| 011e111d299284b65af07add523a9dccac356244 |
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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
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| 7efad83d430f4d824f2aaa75edea5106f6ff8aae |
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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
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| 3726f9c38b4b27b492e378e20c52be859225e5f3 |
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09-Aug-2014 |
Dan Albert <danalbert@google.com> |
Revert "Fix incorrect relocations for x86."
Bug: 16853291
This reverts commit 512bc5232689bec9c763c8247b59de970096ff87.
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| 512bc5232689bec9c763c8247b59de970096ff87 |
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07-Aug-2014 |
Dan Albert <danalbert@google.com> |
Fix incorrect relocations for x86.
These calls were not going through the PLT like they should have been.
Bug: 16853291
Change-Id: Id70488b077256a70137c4417f21be2c2d1d4341c
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| ebc8cd117a562f387c52ed4e1aeba0fb21f33194 |
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07-Jun-2014 |
Elliott Hughes <enh@google.com> |
Rename __bionic_clone_entry to __start_thread.
This seems a bit less obscure.
Change-Id: I7dc528c253b73c861694f67556ad8f919bf92136
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| bd7a892c300a2c257bd7422f56325c575765b09a |
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05-Jun-2014 |
Elliott Hughes <enh@google.com> |
Fix unwinding through x86-64 __bionic_clone.
x86-64 needs these CFI directives to stop unwinding here.
I've also cleaned up the assembler a little, and made x86 and x86-64
a little more alike.
Bug: 15195760
(cherry picked from commit aeb3016f8132689d1b49d30056005b667e3d2d0e)
Change-Id: I511fe238b1ef1a1c16aef735f93bbee9accb0689
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| 15a0456d0b7618554ed3d49287e77b6d43a2812a |
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06-Jun-2014 |
Elliott Hughes <enh@google.com> |
Remove unnecessary instructions from x86/x86_64 syscalls.
__set_errno returns -1 exactly so that callers don't need to bother.
The other architectures were already taking advantage of this, but
no one had ever fixed x86 and x86_64.
Change-Id: Ie131494be664f6c4a1bbf8c61bbbed58eac56122
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| aeb3016f8132689d1b49d30056005b667e3d2d0e |
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05-Jun-2014 |
Elliott Hughes <enh@google.com> |
Fix unwinding through x86-64 __bionic_clone.
x86-64 needs these CFI directives to stop unwinding here.
I've also cleaned up the assembler a little, and made x86 and x86-64
a little more alike.
Bug: 15195760
Change-Id: I40f92c007843c29c933bb6876fe2b4611e1b946b
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| ee9d5bdd950bb05549bddc614c3c5ce9d10a5b08 |
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30-May-2014 |
Elliott Hughes <enh@google.com> |
x86: stop unwinding past __bionic_clone.
The apparent "previous" frame is on another thread's stack.
Bug: 14270816
Bug: 15195760
Change-Id: I884f370e116203c5fa3b05a75fb8f356537261c4
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| 0d236aa3f1e6d31b0c729448ae9d3ed1cad23fb4 |
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09-May-2014 |
Elliott Hughes <enh@google.com> |
Align the child stack in clone(2).
Also let clone(2) set the TLS for x86.
Also ensure we initialize the TLS before we clone(2) for all architectures.
Change-Id: Ie5fa4466e1c9ee116a281dfedef574c5ba60c0b5
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| fff3c0fdcf2a6f4301a238628fbf8182780a1612 |
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09-May-2014 |
Elliott Hughes <enh@google.com> |
Align arm64 stacks to 16 bytes in __bionic_clone.
Also ensure that arm64/x86-64/x86 assembler uses local labels.
(There are are so many non-local labels in arm that fixing them
seems out of scope.)
Also synchronize the __bionic_clone.S comments.
Change-Id: I03b4f84780d996b54d6637a074638196bbb01cd4
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| 954cf0d4e2669f91194b45f484152e47efa4f6c7 |
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09-May-2014 |
Elliott Hughes <enh@google.com> |
Hide the __bionic_clone and __bionic_clone_entry implementation details.
clone(2) is the public symbol.
Also switch a test from __bionic_clone to clone; testing public API
means the test now works on glibc too.
Change-Id: If59def26a00c3afadb8a6cf9442094c35a59ffde
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| 851e68a2402fa414544e66650e09dfdaac813e51 |
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20-Feb-2014 |
Elliott Hughes <enh@google.com> |
Unify our assembler macros.
Our <machine/asm.h> files were modified from upstream, to the extent
that no architecture was actually using the upstream ENTRY or END macros,
assuming that architecture even had such a macro upstream. This patch moves
everyone to the same macros, with just a few tweaks remaining in the
<machine/asm.h> files, which no one should now use directly.
I've removed most of the unused cruft from the <machine/asm.h> files, though
there's still rather a lot in the mips/mips64 ones.
Bug: 12229603
Change-Id: I2fff287dc571ac1087abe9070362fb9420d85d6d
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| 99c393dff33e0a5d3838c16dc7878f32ac3da971 |
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27-Nov-2013 |
Elliott Hughes <enh@google.com> |
Fix the order of arguments to sys_clone for x86.
Unlike x86-64, x86's arguments are just like every other
architecture's.
Change-Id: Ic6da23f2a70599683b68e7e12ab9ba061e0b349c
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| 36d6188f8cd8b948fb797f11d9620d63d0c2215a |
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19-Nov-2013 |
Elliott Hughes <enh@google.com> |
Clean up forking and cloning.
The kernel now maintains the pthread_internal_t::tid field for us,
and __clone was only used in one place so let's inline it so we don't
have to leave such a dangerous function lying around. Also rename
files to match their content and remove some useless #includes.
Change-Id: I24299fb4a940e394de75f864ee36fdabbd9438f9
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