Commit graph

12 commits

Author SHA1 Message Date
Elliott Hughes
204990cc83 Fix x86 __memset_chk.
The stack offsets assumed we'd pushed %ebx. Unlike x86-64 we can't fall
through, but we can avoid repeating work we've already done.

Change-Id: I7e5f9be50983ed6178dd0c0534042da7ea30ad0c
2016-03-24 22:34:47 -07:00
Elliott Hughes
81d6a18c69 Add x86 __memset_chk assembler.
Change-Id: Ic6732f761ea8a41f70d5ff59d47ad38417d17cc2
2016-03-03 16:10:33 -08:00
Elliott Hughes
bed110af26 Clean up bcopy cruft.
Also remove some generic x86 assembler that's never built.

Change-Id: Ic126de2eee646b5ba2b6ee549679ba90d67a48bb
2016-03-03 10:41:42 -08:00
Elliott Hughes
01d5b946ac Remove optimized code for bzero, which was removed from POSIX in 2008.
I'll come back for the last bcopy remnant...

Bug: http://b/26407170
Change-Id: Iabfeb95fc8a4b4b3992e3cc209ec5221040e7c26
2016-03-02 17:21:07 -08:00
Christopher Ferris
97b6e131fd Fix cfi directives for memmove/strlcpy.
Bug: 27227225
Change-Id: I47ca82daaadb3ec24cefc3c9aa4df7ed1798aced
2016-02-17 19:17:02 -08:00
Christopher Ferris
de84e51f8c Fix cfi directives in small strncmp case.
Bug: 27227225
Change-Id: Id4f88fe288109a82822ad1b2291858c1c85b0ca7
2016-02-17 16:34:02 -08:00
Chih-Hung Hsieh
592c7b4cd7 Explicit binary op order for both gcc and clang/llvm.
* gcc assembler parses (1 << n - 1) as ((1 << n) - 1)
* llvm assembler parses (1 << n - 1) as (1 << (n - 1))

BUG: 26289334
Change-Id: Iaaa3d07f59c0f87cb1b80b9a1c4e765b66846791
2016-01-12 09:48:09 -08:00
Chih-Hung Hsieh
c89ee272fb Replace ambiguous cmp operator with cmpl.
Clang assembler rejects ambiguous cmp instruction.

BUG: 17302482
Change-Id: Ie8dca7e4f46e0906c47076bba21c1941482ba6b3
2014-10-21 16:25:35 -07:00
Chih-Hung Hsieh
857fa6b2a3 Replace ambiguous cmp instruction with cmpl.
Clang assembler rejects ambiguous cmp instruction.

BUG: 17302482
Change-Id: I74f49de87464541f9fe6fa288e4093a9fbf37120
2014-08-27 15:04:23 -07:00
David 'Digit' Turner
891dedb935 libc: Fix 'index' symbol export.
The C library didn't export the 'index' symbol, but its C++ name-mangling
instead, which broke the ABI and prevented some applications from loading
properly.

The main reason was that the implementation under bionic/index.cpp relied
on the declaration to specify that the function has C linkage.

However, the declaration for index() was removed from both <string.h>
and <strings.h> in a recent patch, which made the compiler think it was
ok to compile the function with C++ linkage instead!

This patch does the following:

- Move index() definition to bionic/ndk_cruft.cpp and ensure it uses
  C linkage.

  Note that this removes index() from the 64-bit library entirely, this
  is intentional and will break source compatibility. Simply replacing
  an index() call with the equivalent strchr() should be enough to fix
  this in third-party code.

- Remove bionic/index.cpp from the tree and build files.

- Remove x86 assembly implementation from arch-x86/ to avoid conflict
  with the one in ndk_cruft.cpp

BUG=15606653

Change-Id: I816b589f69c8f8a6511f6be6195d20cf1c4e8123
2014-06-16 13:10:20 -07:00
Elliott Hughes
24614b4729 Remove __memcmp16 from bionic.
Change-Id: I2486d667d96c8900dd368d855f37c1327161efb7
2014-06-12 15:35:22 -07:00
Varvara Rainchik
5a92284167 Add 32-bit Silvermont-optimized string/memory functions.
Add following functions:
bcopy, memcpy, memmove, memset, bzero, memcmp, wmemcmp, strlen,
strcpy, strncpy, stpcpy, stpncpy.
Create new directories inside arch-x86 to specify architecture: atom,
silvermont and generic (non atom or silvermont architectures are treated like generic).
Due to introducing optimized versions of stpcpy and stpncpy,
c-implementations of these functions are moved from
common for architectures makefile to arm and mips specific makefiles.

Change-Id: I990f8061c3e9bca1f154119303da9e781c5d086e
Signed-off-by: Varvara Rainchik <varvara.rainchik@intel.com>
2014-05-12 13:56:59 -07:00