Commit graph

166 commits

Author SHA1 Message Date
Elliott Hughes
cac7b9d6ec Remove dependencies on obsolete __ARCH_WANT_SYSCALL_NO_FLAGS syscalls.
(aarch64 kernels only have the newer system calls.)

Also expose the new functionality that's exposed by glibc in our header files.

Change-Id: I45d2d168a03f88723d1f7fbf634701006a4843c5
2013-10-23 09:48:29 -07:00
Elliott Hughes
f8fcfbc85a Move away from the __ARCH_WANT_SYSCALL_NO_AT system calls.
Modern architectures only get the *at(2) system calls. For example,
aarch64 doesn't have open(2), and expects userspace to use openat(2)
instead.

Change-Id: I87b4ed79790cb8a80844f5544ac1a13fda26c7b5
2013-10-22 16:31:01 -07:00
Serban Constantinescu
7f70c9b64e AArch64: Fix uses of stack size for 32/64bit libc builds
This patch fixes stack size uses to size_t.

Change-Id: I0671c85ddb1c1aceaf9440a7c73c21fe528653fa
Signed-off-by: Serban Constantinescu <serban.constantinescu@arm.com>
2013-10-22 12:01:29 -07:00
Elliott Hughes
c7e9b23317 Fix sigaction(3) for 64-bit.
Also clean up <signal.h> and revert the hacks that were necessary
for 64-bit in linker/debugger.cpp until now.

Change-Id: I3b0554ca8a49ee1c97cda086ce2c1954ebc11892
2013-10-17 11:36:55 -07:00
Elliott Hughes
103ccde8fe Sort the syscalls.mk files, give all generated files the same header.
No non-comment changes to the .S files.

Change-Id: Iafcfd004c3ea92b64268f80ab16df615b97cefac
2013-10-16 14:27:59 -07:00
Elliott Hughes
40d105ccb3 Switch sigpending over to rt_sigpending.
Change-Id: I7b28984796b5fb343cfbcc47e0afc3a84293d417
2013-10-16 14:07:01 -07:00
Elliott Hughes
1f5af926fa Fix sigsuspend to use rt_sigsuspend on all platforms.
Change-Id: I981c1a66d35480d4457a0a08a1b042dac94daa5b
2013-10-15 18:15:19 -07:00
Elliott Hughes
19e62325c2 Clean up the sigprocmask/pthread_sigmask implementation.
Let's have both use rt_sigprocmask, like in glibc. The 64-bit ABIs
can share the same code as the 32-bit ABIs.

Also, let's test the return side of these calls, not just the
setting.

Bug: 11069919
Change-Id: I11da99f85b5b481870943c520d05ec929b15eddb
2013-10-15 11:23:57 -07:00
Elliott Hughes
232163cf70 Clean up the cpuacct cruft.
Change-Id: I6ed63af8dfc2368e211420389fa8af4d5dc0908f
2013-10-09 17:35:36 -07:00
Elliott Hughes
2a0b873065 Fix __errno for LP64 and clean up __get_tls.
If __get_tls has the right type, a lot of confusing casting can disappear.

It was probably a mistake that __get_tls was exposed as a function for mips
and x86 (but not arm), so let's (a) ensure that the __get_tls function
always matches the macro, (b) that we have the function for arm too, and
(c) that we don't have the function for any 64-bit architecture.

Change-Id: Ie9cb989b66e2006524ad7733eb6e1a65055463be
2013-10-09 13:39:13 -07:00
Elliott Hughes
c4c6e192ac pthread_exit should call __NR_exit with status 0.
We shouldn't have been passing the bottom 32 bits of the address used
for pthread_join to the kernel.

Change-Id: I487e5002d60c27adba51173719213abbee0f183f
2013-10-08 14:48:05 -07:00
Elliott Hughes
a97cc5b458 Clean up the x86 and x86_64 _exit_with_stack_teardown implementations.
Change-Id: I4bcbbc53893612bd94643ef07722becb00f91792
2013-10-07 10:25:11 -07:00
Elliott Hughes
72645164b6 Add arch-x86_64/include/machine.
This is basically the other half of I5de76f6c46ac87779f207d568a86bb453e2414de
from Pavel Chupin <pavel.v.chupin@intel.com>, but taking the exact upstream
_types.h instead of the modified version. (I was confused when I suggested
otherwise.)

I've also cleaned up the internal_types.h situation; we weren't gaining
anything from these empty files, and there is no upstream internal_types.h
for x86_64.

Change-Id: I802a9a6a8df1c979e820659212c75a47c2ef392e
2013-10-04 16:10:13 -07:00
Elliott Hughes
7e841ed688 Remove useless x86 fallbacks.
The NDK ABI requires that you support SSE2, and the build system won't let you
build with ARCH_X86_HAVE_SSE2 set to false. So let's stop pretending this
constant is actually a variable, and let's remove the corresponding dead code.

Also, the USE_SSE2 and USE_SSE3 macros are unused, so let's not bother
setting them.

Change-Id: I40b501d998530d22518ce1c4d14575513a8125bb
2013-10-03 23:30:33 -07:00
Pavel Chupin
b49c17c2bf Move common arch-* code to arch-common directory
Will be helpful on adding x86_64

Change-Id: I96cf6fc7912c02f289c75f07ae0079c32d69173f
Signed-off-by: Pavel Chupin <pavel.v.chupin@intel.com>
2013-10-03 11:14:33 +04:00
Elliott Hughes
e4ffd9f234 Regenerate the system call stubs (to get x86_64).
This touches the x86 stubs too because arm, x86, and x86_64 now
all share the same header (at a source level), which causes a
reordering of the #include lines.

Change-Id: If9a1e2b2718bd41d8399fea748bce672c513ef84
2013-10-01 13:29:43 -07:00
Elliott Hughes
c0af695426 Clean up some comments.
Copyright headers shouldn't contain the filename (and especially
shouldn't contain a different file's filename).

Change-Id: I82690a3bf371265402bc16f5d2fbb9299c3a1926
2013-10-01 11:10:21 -07:00
Elliott Hughes
d612165c67 Make it easier to add syscalls for another architecture.
Much of the per-architecture duplication can be removed, so let's do so
before we add the 64-bit architectures.

Change-Id: Ieb796503c8e5353ea38c3bab768bb9a690c9a767
2013-09-26 08:57:17 -07:00
Elliott Hughes
b4f7616fd6 Ensure we have the off64_t variant of every function that takes an off_t.
Change-Id: Ib2eee0cf13162be3b62559b84e90c6dcf5aab1c3
2013-09-19 16:27:24 -07:00
Pavel Chupin
3c4b50fd8c Fix strchr for basic non-sse case on x86
Fix source location. Move declaration of __strchr_chk out of
ifdef __BIONIC_FORTIFY which should be available for strchr.cpp
compilation when __BIONIC_FORTIFY is not defined.

Change-Id: I552a6e16656e59b276b322886cfbf57bbfb2e6a7
Signed-off-by: Pavel Chupin <pavel.v.chupin@intel.com>
2013-09-03 16:20:52 +04:00
Alexander Ivchenko
baa91f4f89 Add ssse3 implementation of __memcmp16.
__memcmp16 was missing in x86. Also added C-version for backward
compatibility. Added bionic test for __memcmp16 and for wmemcmp.

Change-Id: I33718441e7ee343cdb021d91dbeaf9ce2d4d7eb4
Signed-off-by: Alexander Ivchenko <alexander.ivchenko@intel.com>
2013-08-02 17:57:23 -07:00
Rom Lemarchand
995f17e6a9 Merge "libc: add swapon and swapoff syscalls" 2013-06-25 22:25:31 +00:00
Pavel Chupin
64a4f6adf7 Update x86 machine/endian.h from upstream
After download new version from upstream (OpenBSD 1.17) did the
following:
 * changed all u_int* types to uint*
 * add #include <sys/types.h>

All these changes are Android-specific and had been done before for
previous version (1.14).

Bug: http://code.google.com/p/android/issues/detail?id=54465
Change-Id: Ieb44e7fce4e794d997bb00ee0dd417fb61521720
Signed-off-by: Pavel Chupin <pavel.v.chupin@intel.com>
2013-06-25 14:17:58 -07:00
Rom Lemarchand
d206b560e7 libc: add swapon and swapoff syscalls
Change-Id: Ie79dc8e3f2ff1cd427dd6d95e3850920c4b407b0
Signed-off-by: Rom Lemarchand <romlem@google.com>
2013-06-25 13:18:03 -07:00
Liubov Dmitrieva
0a490665a3 bionic/x86: Optimization for string routines
Optimized strcpy, strcat,
strncpy, strncat, strlcpy, strlcat,
memchr, memrchr, strchr, strrchr, index,
strnlen, strlen, wcslen, wmemcmp, wcscmp,
wcschr, wcsrchr, wcscpy, wcscat

Change-Id: I82b29132edf9a2e144e0bb3ee4ff5217df8d2a6d
Signed-off-by: Liubov Dmitrieva <liubov.dmitrieva@intel.com>
2013-05-31 13:37:03 +04:00
Nick Kralevich
e4c4ada580 libc x86: Remove index.S, strcpy.S, strchr.S
These files are never used.

Change-Id: Iab8474bdff3bd4d225597c62b3c0f0849f808818
2013-05-24 10:50:05 -07:00
Nick Kralevich
615684c256 libc: delete x86 memchr.S
This file is never used.

Change-Id: Ief08ad176713b5194048852609613801969e1364
2013-05-24 08:52:04 -07:00
Todd Poynor
4200e6203a libc: add timerfd calls
(cherry-pick of 04c0ac14a49e0969333008a9522b64046d58fbdc.)

Change-Id: I06d0b6c2a8781602362b81f48faf1cca76b9ec05
2013-05-14 14:45:02 -07:00
Elliott Hughes
4cdde5f123 Replace unnecessary x86 uses of <sys/linux-syscalls.h> with <asm/unistd.h>.
Change-Id: I9d016ee8e8329cccf244d27c336d9524348af996
2013-03-21 22:48:18 -07:00
Elliott Hughes
5c2772f59d The SYS_ constants should cover all __NR_ values.
<sys/linux-syscalls.h> only contains constants for the syscalls
we're generating stubs for. We want all the syscalls available
on the architecture in question.

Keep using <sys/linux-syscalls.h> on ARM for now because the
__NR_ARM_set_tls and __NR_ARM_cacheflush values aren't in <asm/unistd.h>.

Change-Id: I66683950d87d9b18d6107d0acc0ed238a4496f44
2013-03-21 22:26:20 -07:00
Kito Cheng
8f7120bbac Drop unnecessary execution permission for .cpp/.c/.h
Change-Id: I9ac2b9d8f6bdb4fab8962210c5ec8f9c3e8c0ebf
2013-03-22 10:28:15 +08:00
Elliott Hughes
17a8b0db63 Expose wait4 as wait4 rather than __wait4.
This helps strace(1) compile with one fewer hack.

Change-Id: I5296d0cfec5546709cda990abd705ad33d7c4626
2013-03-21 16:14:06 -07:00
Elliott Hughes
ec706c24ac Merge "Use the kernel's MAX_ERRNO in the syscall stubs." 2013-03-13 00:44:33 +00:00
Elliott Hughes
9aceab5015 Use the kernel's MAX_ERRNO in the syscall stubs.
Bug: http://code.google.com/p/android/issues/detail?id=53104
Change-Id: Iaabf7025b153e96dc5eca231a33a32d4cb7d8116
2013-03-12 17:43:58 -07:00
Christopher Ferris
04954a43b3 Break bionic implementations into arch versions.
Move arch specific code for arm, mips, x86 into separate
makefiles.
In addition, add different arm cpu versions of memcpy/memset.

Bug: 8005082

Merge from internal master (acdde8c1cf).

Change-Id: I04f3d0715104fab618e1abf7cf8f7eec9bec79df
2013-03-12 14:06:08 -07:00
Elliott Hughes
538f6fc202 Stop advertising rindex(3), which is both deprecated and unimplemented.
Change-Id: I3c775d9974e49c3f76a53e46e022659657b89034
2013-02-21 17:39:06 -08:00
Nick Kralevich
11ebbc8437 libc: remove bcmp prototype
AFAIK, bionic only ever provided an implementation of bcmp
for x86, and even then, the code was never actually compiled.
Remove the prototype.

bcmp() has been obsoleted and replaced by memcmp()

Change-Id: I549d02ab6a9241a9acbbbfade0d98a9a02c2eaee
2013-02-21 17:17:09 -08:00
Elliott Hughes
40eabe24e4 Fix the pthread_setname_np test.
Fix the pthread_setname_np test to take into account that emulator kernels are
so old that they don't support setting the name of other threads.

The CLONE_DETACHED thread is obsolete since 2.5 kernels.

Rename kernel_id to tid.

Fix the signature of __pthread_clone.

Clean up the clone and pthread_setname_np implementations slightly.

Change-Id: I16c2ff8845b67530544bbda9aa6618058603066d
2013-02-15 12:08:59 -08:00
Elliott Hughes
d2547040a1 ffs was not being built for x86.
Change-Id: I53e92273664a4d0a13536c2fa1aeb87e1f3cf4e8
2013-02-13 16:31:52 -08:00
Elliott Hughes
6719500dbd Add a bunch more missing ENDs to assembler routines.
This isn't everything; I've missed out those x86 files that are

Change-Id: Idb7bb1a68796d6c0b70ea2b5c3300e49da6c62d2
2013-02-13 15:12:32 -08:00
Elliott Hughes
b6032515a0 Fix __pthread_clone and __bionic_clone error handling on x86.
Bug: 3461078
Change-Id: I93c151e27411211dd32717f206745c62c08c21ee
2013-02-12 23:02:33 -08:00
Elliott Hughes
bdff26df27 Use ENTRY/END in custom x86 assembler too.
Change-Id: Ic2e482e5daff29c65d3b2ab0b2111c996bbc6226
2013-02-11 17:08:16 -08:00
Elliott Hughes
5e3fc43dde Fix __pthread_clone on ARM to set errno on failure.
MIPS and x86 appear to have been correct already.

(Also fix unit tests that ASSERT_EQ with errno so that the
arguments are in the retarded junit order.)

Bug: 3461078
Change-Id: I2418ea98927b56e15b4ba9cfec97f5e7094c6291
2013-02-11 16:39:10 -08:00
Elliott Hughes
646e058136 Fix x86 build, remove void* arithmetic.
Change-Id: Idc7f14af2e094ac33de315e808176237af063bb8
2013-02-07 12:16:10 -08:00
Elliott Hughes
2f41531ff9 Merge "Clean up the argc/argv/envp/auxv handling." 2013-02-07 19:48:17 +00:00
Elliott Hughes
42b2c6a5ee Clean up the argc/argv/envp/auxv handling.
There's now only one place where we deal with this stuff, it only needs to
be parsed once by the dynamic linker (rather than by each recipient), and it's
now easier for us to get hold of auxv data early on.

Change-Id: I6314224257c736547aac2e2a650e66f2ea53bef5
2013-02-07 11:44:21 -08:00
Elliott Hughes
7582a9c119 Switch x86 syscall stubs over to the ENTER/END style of the ARM stubs.
Also update the x86 asm.h to support this; we need it for libm assembler
anyway.

Also clean up the _FBSDID hack in <sys/cdefs.h>.

Change-Id: Iababd977b8110ec022bf7c93f4d62ece47630e7c
2013-02-06 17:08:15 -08:00
Elliott Hughes
a0ee07829a Upgrade libm.
This brings us up to date with FreeBSD HEAD, fixes various bugs, unifies
the set of functions we support on ARM, MIPS, and x86, fixes "long double",
adds ISO C99 support, and adds basic unit tests.

It turns out that our "long double" functions have always been broken
for non-normal numbers. This patch fixes that by not using the upstream
implementations and just forwarding to the regular "double" implementation
instead (since "long double" on Android is just "double" anyway, which is
what BSD doesn't support).

All the tests pass on ARM, MIPS, and x86, plus glibc on x86-64.

Bug: 3169850
Bug: 8012787
Bug: https://code.google.com/p/android/issues/detail?id=6697
Change-Id: If0c343030959c24bfc50d4d21c9530052c581837
2013-02-01 14:51:19 -08:00
Elliott Hughes
a6a3ac5924 Use the NetBSD <sys/exec_elf.h>.
Replace a kernel header file dependency with files from NetBSD.
They're more complete, and ELF is ELF, whether you're on Linux or a BSD.

Bug: 7973611
Change-Id: I83ee719e7efdf432ec2ddbe8be271d05b2f558d7
2013-01-29 15:02:50 -08:00
Rom Lemarchand
a4b2dc016f Add signalfd call to bionic
Add signalfd() call to bionic.

Adding the signalfd call was done in 3 steps:
- add signalfd4 system call (function name and syscall
  number) to libc/SYSCALLS.TXT
- generate all necessary headers by calling
  libc/tools/gensyscalls.py. This patch is adding
  the generated files since the build system
  does not call gensyscalls.py.
- create the signalfd wrapper in signalfd.cpp and add
  the function prototype to sys/signalfd.h

(cherry-pick of 0c11611c11, modified to
work with older versions of GCC still in use on some branches.)

Change-Id: I4c6c3f12199559af8be63f93a5336851b7e63355
2013-01-10 13:14:46 -08:00