Commit Graph

13 Commits

Author SHA1 Message Date
George Burgess IV 6cb0687932 Split our FORTIFY implementation into libc_fortify
As requested in the bug. This also rips __memcpy_chk out of memcpy.S,
which lets us cut down on copypasta (all of the implementations look
identical).

Bug: 12231437
Test: mma on aosp_{arm,arm64,mips,x86,x86_64} internal master;
checkbuild on bullhead internal master; CtsBionicTestCases on bullhead.
No new failures.
Change-Id: I88c39ca166bacde0b692aa3063e743bb046a5d2f
2017-07-24 14:20:16 -07:00
Colin Cross 7510c33b61 Remove deprecated Android.mk files
These directories all have Android.bp files that are always used now,
delete the Android.mk files.

Change-Id: Ib0ba2d28bff88483b505426ba61606da314e03ab
2016-05-26 16:41:57 -07:00
Elliott Hughes 784609317d Mandate optimized __memset_chk for arm and arm64.
This involves actually implementing assembler __memset_chk for arm64,
but that's easily done.

Obviously I'd like this for all architectures (and all the string functions),
but this is low-hanging fruit...

Change-Id: I70ec48c91aafd1f0feb974a2555c51611de9ef82
2016-03-02 11:58:41 -08:00
Elliott Hughes 3c6016f04a Improve diagnostics from the assembler __memcpy_chk routines.
Change-Id: Iec16c92ed80beee505cba2121ea33e3550197b02
2016-03-01 14:45:58 -08:00
Elliott Hughes b83d6747fa Improve FORTIFY failure diagnostics.
Our FORTIFY _chk functions' implementations were very repetitive and verbose
but not very helpful. We'd also screwed up and put the SSIZE_MAX checks where
they would never fire unless you actually had a buffer as large as half your
address space, which probably doesn't happen very often.

Factor out the duplication and take the opportunity to actually show details
like how big the overrun buffer was, or by how much it was overrun.

Also remove the obsolete FORTIFY event logging.

Also remove the unused __libc_fatal_no_abort.

This change doesn't improve the diagnostics from the optimized assembler
implementations.

Change-Id: I176a90701395404d50975b547a00bd2c654e1252
2016-02-26 22:06:17 -08:00
Dan Willemsen 268a673bd1 Switch to LOCAL_SRC_FILES_EXCLUDE
This moves the generic arm/arm64/x86 settings into the main makefiles
and makes the rest of them derivatives. This better aligns with how
soong handles arch/cpu variants.

Also updates the Android.bp to make it consistent with the make
versions.

Change-Id: I5a0275d992bc657459eb6fe1697ad2336731d122
2015-10-20 11:58:28 -07:00
Christopher Ferris 8cf61dab5f Add __memcpy_chk assembly for 64 bit.
Bug: 17623887
Change-Id: I443723bc941b40f84884b330d222baabee01f868
2014-09-26 12:47:04 -07:00
Bernhard Rosenkränzer 8c20c13100 Add optimized memchr implementation from newlib
Add NEON optimized memchr adapted from newlib

Change-Id: I91b2fafa243e4ab35fa56bb6171d48433c947cfd
Signed-off-by: Bernhard Rosenkränzer <Bernhard.Rosenkranzer@linaro.org>
2014-07-11 00:17:07 +02:00
Christopher Ferris 753eb7f07e Add optimized stpcpy.
Change-Id: Ifed38f92a54fef4488fd0ed26a1569059a054574
2014-06-30 12:48:13 -07:00
Christopher Ferris 2e249c2e7a Merge "Add optimized 64 bit strcpy." 2014-06-26 18:12:01 +00:00
Christopher Ferris 77561bfe0b Add optimized 64 bit strcpy.
Change-Id: I4ac12735a53c3ae9336b148ce694fe6c63613139
2014-06-26 17:51:56 -07:00
Bernhard Rosenkränzer 12c0274d9c Add optimized neon strchr implementation based on newlib
Signed-off-by: Bernhard Rosenkränzer <Bernhard.Rosenkranzer@linaro.org>
Change-Id: I276ff0f879e733a1115456247e1342b9c5a09015
2014-06-27 13:21:42 +02:00
Shu Zhang 0ef7a8fd31 add 64-bit bionic implementation for denver arch
Add 64-bit bionic implementation for denver. memcpy/memset are
denver-specific optimized. Use generic version of other routines.

Change-Id: I44a830e07b82b2986001d73d1540b4080aaa839b
2014-06-12 15:08:27 +08:00