Commit Graph

2924 Commits

Author SHA1 Message Date
Elliott Hughes
bf425680e4 Let the compiler worry about implementing ffs(3).
It does at least as good a job as our old hand-written assembly anyway.

Change-Id: If7c4a1ac508bace0b71ee7b67808caa6eabf11d2
2013-10-24 16:29:40 -07:00
Elliott Hughes
f8dfb6f249 Merge "Remove dependencies on obsolete __ARCH_WANT_SYSCALL_DEPRECATED system calls." 2013-10-24 22:49:49 +00:00
Elliott Hughes
11952073af Remove dependencies on obsolete __ARCH_WANT_SYSCALL_DEPRECATED system calls.
(aarch64 kernels don't have these system calls.)

Change-Id: I6f64075aa412f71520f2df71c3d69b647f91c1ca
2013-10-24 15:48:32 -07:00
Ben Cheng
fcb37b876e Merge "Add __EXPORTED_HEADERS__ as predefined macro." 2013-10-23 22:47:21 +00:00
Ben Cheng
460fa7033b Add __EXPORTED_HEADERS__ as predefined macro.
To weed out stuff like this in uapi/linux/types.h

ifndef __EXPORTED_HEADERS__
warning "Attempt to use kernel headers from user space, see
http://kernelnewbies.org/KernelHeaders"
endif /* __EXPORTED_HEADERS__ */

Change-Id: I6506cea6248f7a3b44a839b98e91bdd0d3a6c4cd
2013-10-23 14:44:38 -07:00
Elliott Hughes
cdac5f73ac Merge "MIPS' pipe(2) is weird, but MIPS' pipe2(2) is the same as everyone else's." 2013-10-23 18:27:35 +00:00
Elliott Hughes
93de3d881d Fix header file dependencies.
MIPS' asm/fcntl.h assumes a bunch of __kernel_* types are already declared.

Change-Id: Iff701bbb5ede9667a78230c2de3a8f4fe41371c5
2013-10-23 11:25:54 -07:00
Elliott Hughes
b8cf18b4dd MIPS' pipe(2) is weird, but MIPS' pipe2(2) is the same as everyone else's.
arch/mips/kernel/syscall.c has a special sysm_pipe wrapper, but there's
no special treatment of pipe2 because it carries no historical baggage.

Change-Id: I892c0f690b21992c8a48276a9b732126f18fc0ee
2013-10-23 11:21:36 -07:00
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
debc021491 AArch64: Fix definitions for STDINT_LIMITS
This patches fixes the definitions for STDINT_LIMITS on __LP64__
systems.

Change-Id: I5eb1664e9ef7c303432a2b041c99cec663816b75
Signed-off-by: Serban Constantinescu <serban.constantinescu@arm.com>
2013-10-22 12:40:16 -07:00
Elliott Hughes
8c39e58b6a Merge "Make sure we have a mkfifo symbol." 2013-10-22 19:03:57 +00:00
Elliott Hughes
594b1a4af2 Make sure we have a mkfifo symbol.
Bug: https://code.google.com/p/android/issues/detail?id=58888
Change-Id: Ic0a883a5f30beb82cb7be3c4e81b6d693d5fbb4d
2013-10-22 12:03:19 -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
Pavel Chupin
33a209e575 Fix 16-byte stack alignment requirement for x86_64 ABI
Change-Id: I43304803ac54c8688c61688bd96c7160614172d4
Signed-off-by: Pavel Chupin <pavel.v.chupin@intel.com>
2013-10-21 17:36:28 -07:00
Elliott Hughes
f4ac8ba566 Merge "Fix the x86_64 vfork implementation." 2013-10-21 21:20:51 +00:00
Elliott Hughes
53bfdae4ff Fix the x86_64 clone implementation.
Change-Id: Ia75f46dcb4d3222049e9a6a6fabc2b17223b47f7
2013-10-18 19:39:09 -07:00
Elliott Hughes
9ea4d5f3a8 Fix the x86_64 vfork implementation.
Change-Id: I599507f5058e6196dc2d5b5653d06d5135dd8ac1
2013-10-18 18:21:11 -07:00
Elliott Hughes
c7fdee72dd Fix struct statfs for LP64.
Change-Id: I9649d881588931a1d672b65ddcf94009daadb0ef
2013-10-18 17:00:11 -07:00
Pavel Chupin
f68fac8c00 x86_64: Fix sys/stat.h
Add 64-bit stat structure mapping 64-bit stat syscall.

Change-Id: Ice517616391bee1d556b6c03e7f5ee610050e6c6
Signed-off-by: Pavel Chupin <pavel.v.chupin@intel.com>
2013-10-18 13:24:25 -07:00
Elliott Hughes
938f38daee Fix clone.S for x86_64.
We need to pull the arguments off the child stack and put them into the
registers they're expected to be in.

Change-Id: I064b3258cdd89d513c632857cabb46e52492af2b
2013-10-17 22:22:31 -07:00
Elliott Hughes
8ea3453719 Merge "Add missing aliases for off64_t functions in 64-bit land." 2013-10-18 04:42:09 +00:00
Elliott Hughes
8ca530e559 Add ffs and memcmp16 to x86_64.
Change-Id: I652c1356f1c7c52299977181c2cf154386979380
2013-10-17 17:03:22 -07:00
Elliott Hughes
a6519d6306 Add missing aliases for off64_t functions in 64-bit land.
See the comment in SYSCALLS.TXT for an explanation.

Change-Id: I33d4056e84160c3cca74b7b588e9924a569753ed
2013-10-17 16:56:40 -07:00
Andrei Emeltchenko
43d2137af0 Add SOCK_CLOEXEC and SOCK_NONBLOCK socket flags.
SOCK_CLOEXEC is used to atomically set close-on-exec flag for the new
descriptor(s), and SOCK_NONBLOCK is used to mark descriptor(s) as
non-blocking.

Change-Id: I8ba6a70543d23759e3ddcc7ff9c21b567184d681
2013-10-17 13:32:32 -07:00
Elliott Hughes
e989399dc2 O_CLOEXEC is always defined for arm, mips, x86, and x86_64.
I built all four, just to be sure.

Change-Id: I5c818575c8142fccfc8fb163468832807a535e90
2013-10-17 11:45:22 -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
Ben Cheng
76b795a8ba Refresh libc/kernel/common/linux/auxvec.h
Change-Id: If9bb50a2f233cdb60e91bd979876edb917e0f66d
2013-10-16 16:50:14 -07:00
Ben Cheng
3fdd6b8337 Merge "Add processed uapi kernel headers (common and aarch64-specific)" 2013-10-16 23:17:52 +00:00
Ben Cheng
655a7c081f Add processed uapi kernel headers (common and aarch64-specific)
Change-Id: If0be7b83bd8fe7cb02472d173f7c452aabf61124
2013-10-16 16:09:24 -07:00
Elliott Hughes
bffe261a1f Merge "Sort the syscalls.mk files, give all generated files the same header." 2013-10-16 23:06:48 +00:00
Ben Cheng
8bea2b6fac Tweaked the cleanup scripts to handle uapi and aarch64 headers.
The processed uapi directory is now placed at libc/kernel/uapi as
opposed to libc/kernel/common/uapi as it contains
architectural-dependent headers now.

Change-Id: I53f814704a4d231b452fde398cd94257a0fb2eea
2013-10-16 15:28:56 -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
c9da332cce Remove support for the useless 'custom' option in SYSCALLS.TXT.
This cruft dates from a time when bionic would only output syscall
contants for the syscalls mentioned in SYSCALLS.TXT. I fixed that
a long time ago, but never followed through with the removal of what
was then confusingly called "stub" and was recently renamed "custom".

Change-Id: I8f3872a200b2dc8325e357cc5ee505ea4212ef95
2013-10-15 18:18:58 -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
68b67113a4 'Avoid confusing "read prevented write" log messages' 2.
This time it's assembler.

Change-Id: Iae6369833b8046b8eda70238bb4ed0cae64269ea
2013-10-15 17:17:05 -07:00
Elliott Hughes
d9913b0b0d Merge "Make pthread_create report sched_setscheduler failures on LP64." 2013-10-16 00:09:54 +00:00
Elliott Hughes
7672521440 Merge "Avoid confusing "read prevented write" log messages." 2013-10-15 23:53:45 +00:00
Elliott Hughes
98624c3746 Make pthread_create report sched_setscheduler failures on LP64.
We couldn't fix this for 32-bit because there's too much broken
code out there. (Pretty much everyone asks for real-time
scheduling for all their threads, and the kernel says "don't be
stupid".)

Change-Id: I43c5271e6b6bb91278b9a19eec08cbf05391e3c4
2013-10-15 16:51:17 -07:00
Elliott Hughes
0cfc95e010 Fix indentation in sched_getaffinity.
Change-Id: I966852149a0255ca132cd7a15f135a875ce400d0
2013-10-15 16:49:49 -07:00
Elliott Hughes
d1eda33f01 Avoid confusing "read prevented write" log messages.
Moving to a "function: message" style avoids ambiguity.

Change-Id: If9d590e50265c61725d3673bd03796e65edd2d5e
2013-10-15 16:49:28 -07:00
Christopher Ferris
dc9d8d050a Merge "Modify prefetch for krait memcpy." 2013-10-15 21:12:31 +00:00
Christopher Ferris
c3c58fb560 Modify prefetch for krait memcpy.
I originally modified the krait mainloop prefetch from cacheline * 8 to * 2.
This causes a perf degradation for copies bigger than will fit in the cache.
Fixing this back to the original * 8. I tried other multiples, but * 8 is th
sweet spot on krait.

Bug: 11221806

Change-Id: I1f75fad6440f7417e664795a6e7b5616f6a29c45
2013-10-15 12:10:06 -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
Stephen Hines
6e38072add Wrap sprintf()/snprintf() macros to prevent expansion errors.
Previously, FORTIFY_SOURCE used single macros to define these standard
functions for use with clang. This can cause conflicts with other macros used
to call these functions, particularly when those macros expand the number of
arguments to the function. This change wraps our macro definitions, so that
expansion properly takes place for programmer arguments first.

Change-Id: I55929b1fd2a643b9d14a17631c4bcab3b0b712cf
2013-10-11 12:14:49 -07:00
Nick Kralevich
eda2679e30 Merge "FORTIFY_SOURCE: fortify read()" 2013-10-10 04:11:48 +00:00
Nick Kralevich
b036b5ca36 FORTIFY_SOURCE: fortify read()
Change-Id: Ic7de163fe121db13e00560adb257331bc709814d
2013-10-09 20:17:03 -07:00
Elliott Hughes
232163cf70 Clean up the cpuacct cruft.
Change-Id: I6ed63af8dfc2368e211420389fa8af4d5dc0908f
2013-10-09 17:35:36 -07:00
Nick Kralevich
8d25327639 Revert "FORTIFY_SOURCE: fortify read()"
This change reverts
* fb3f956d07.
* 65c99de2cb

Change-Id: Id5774eeede41130579115cf67a72ee914f2b47d5
2013-10-09 16:46:25 -07:00