Commit Graph

55 Commits

Author SHA1 Message Date
Elliott Hughes
062092543f Clean up the 32-bit kernel support, fix LP64 fcntl declaration.
In practice, thanks to all the registers the stubs don't actually change,
but it's confusing to have an incorrect declaration.

I suspect that fcntl remains broken for aarch64; it happens to work for
x86_64 because the first vararg argument gets placed in the right register
anyway, but I have no reason to believe that's true for aarch64.

This patch adds a unit test, though, so we'll be able to tell when we get
as far as running the unit tests.

Change-Id: I58dd0054fe99d7d51d04c22781d8965dff1afbf3
2013-11-06 16:33:39 -08:00
Elliott Hughes
6b53c2349a Fix the exit syscall stub's name.
I've left the exit_group syscall as _exit because otherwise we'd have to
convince the compiler that our _exit (which just calls __exit_group) is
actually "noreturn", and it seems like that would be less clean than just
cutting out the middleman.

We'll just have to trust ourselves not to add anything to SYSCALLS.TXT
that ought to be private but that only has a single leading underscore.
Hopefully we can manage that.

Change-Id: Iac47faea9f516186e1774381846c54cafabc4354
2013-10-24 22:41:50 -07:00
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
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
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
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
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
Todd Poynor
4200e6203a libc: add timerfd calls
(cherry-pick of 04c0ac14a49e0969333008a9522b64046d58fbdc.)

Change-Id: I06d0b6c2a8781602362b81f48faf1cca76b9ec05
2013-05-14 14:45:02 -07:00
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
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
Elliott Hughes
1ad05db9ce Add mlockall and munlockall for Google TV.
Change-Id: I10e961d701e74aab07211ec7975f61167e387853
2012-09-06 11:24:45 -07:00
Irina Tirdea
1ad10a566e Add getsid system call to bionic
Add getsid() system call to bionic for
all architectures. This is needed for various tools
(e.g. perf).

Adding the getsid system call was done in 3 steps:
() add getsid 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.
() add the system call signature to libc/include/unistd.h

Change-Id: Id69a257e13ec02e1a44085a6b217a3f19ab025b1
Signed-off-by: Irina Tirdea <irina.tirdea@intel.com>
2012-09-03 01:38:34 +03:00
Jeff Sharkey
e36c826f7a Add unshare() syscall.
(cherry-pick of 5467f25f82934d611c60f8bc57a05114f3c1bea0.)

Bug: 6925012
Change-Id: Ic5ea2fbd606311087de05d7a3594df2fa9b2fef9
2012-08-10 12:57:43 -07:00
Kenny Root
f0ec06ba60 Add faccessat to syscall list
Change-Id: I427a18811089cb280769ac8da3ed8adc00a65a10
2012-04-13 15:45:42 -07:00
Ben Cheng
1a823691a2 Update kernel headers and add syscall "perf_event_open"
Change-Id: I43f12b727881df002a8524f2738586c043833bae
2012-03-13 12:28:40 -07:00
Jean-Baptiste Queru
2f80f07d81 am 23f56bbb: Merge "Add extended attribute (xattr) system call wrappers to bionic."
* commit '23f56bbb6ae053996dd821f29379aea0c7166055':
  Add extended attribute (xattr) system call wrappers to bionic.
2012-01-20 11:54:47 -08:00
Stephen Smalley
5eb686d105 Add extended attribute (xattr) system call wrappers to bionic.
The xattr system calls are required for the SE Android userspace in
order to get and set file security contexts.  In particular, libselinux
requires these calls.

Change-Id: I78f5eb3d8f3384aed0a5e7c6a6f001781d982017
2012-01-18 08:02:23 -05:00
Nick Kralevich
06f51ba1af am f44de270: add personality() system call.
* commit 'f44de270bba32c9b1b5eff8a34be07b10ddff238':
  add personality() system call.
2012-01-17 11:45:25 -08:00
Nick Kralevich
f44de270bb add personality() system call.
Change-Id: Ie899def8ea1d705930ed83adae1343c1353e7c57
2012-01-13 15:50:40 -08:00
Bruce Beare
e30e909363 sreadahead: adding readahead system call into bionic libc
Add bionic libc to support readahead system call.
This is needed to enable sreadahead to work.

Change-Id: I3856e1a3833db82e6cf42fd34af7631bd40cc723
Author: Winson Yung <winson.w.yung@intel.com>
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
2012-01-03 15:18:04 -08:00
Ken Sumrall
ae2d5ba314 Add support for the utimensat(2) syscall to bionic.
The kernel has supported this syscall for quite some time now,
but bionic did not.  Now that there is a need for it, let's
add it to bionic.

Change-Id: Ifcef3e46f1438d79435b600c4e6063857ab16903
2011-03-24 18:18:48 -07:00
David 'Digit' Turner
95d751feac libc: Add ftruncate64 and improve 64-bit parameter syscall handling.
This patch improves the handling of 64-bit parameters in syscalls on ARM.
The ARM EABI mandates that 64-bit quantities be passed in even/odd register
pairs, which requires special treatment.

This allows us to simplify our implementations of pread() and pwrite()
and remove the C stubs for pread64() and pwrite64().

Also add ftruncate64() to <unistd.h>

Change-Id: I407e2fd223ba0093dd2d0b04c6152fadfc9ce3ef

Bug 3107933
2010-12-16 17:04:41 +01:00
David 'Digit' Turner
72e6fd4242 <sched.h>: Add sched_getcpu() and cpu_set_t
This adds the cpu_set_t type definition and related functions
and macros used to handle CPU thread affinity.

  sched_getcpu()
  sched_setaffinity()
  sched_getaffinity()

Change-Id: If382ecafde8926341a88478062b275553645065b
2010-12-06 13:42:54 +01:00
Ying Wang
76a34d6628 Remove duplicate item
This elimates the makefile warning at the beginning of each build:
libc_common_intermediates/arch-arm/syscalls/eventfd.o' given more than once in the same rule.

Change-Id: I25cc0c373d55b5036dd17811a595c097fd6ca69a
2010-10-08 17:09:55 -07:00
repo sync
686af0b3a5 resolved conflicts for merge of defd1622 to gingerbread-plus-aosp
Conflicts:
	libc/arch-arm/syscalls/eventfd.S
	libc/include/sys/eventfd.h
	libc/include/sys/linux-syscalls.h

Change-Id: I02f6e9536aa5478322240c199ff4c2f4367922d0
2010-09-28 12:23:55 +02:00
David 'Digit' Turner
a511f24561 am 9973a564: libc: Add missing waitid() implementation.
Merge commit '9973a564222b842eb7497fd6e659fe8c8c49e2b3' into gingerbread-plus-aosp

* commit '9973a564222b842eb7497fd6e659fe8c8c49e2b3':
  libc: Add missing waitid() implementation.
2010-09-28 00:22:25 -07:00
David 'Digit' Turner
defd162212 libc: add <sys/eventfd.h> and corresponding implementations.
Change-Id: Ide040884c456190226e580513099fdb8377e015b
2010-09-28 09:20:37 +02:00
David 'Digit' Turner
052fbd8808 am a3ae60d3: libc: Add missing fdatasync() implementation
Merge commit 'a3ae60d343661784e3f6f4566b276d8e6b8a06a7' into gingerbread-plus-aosp

* commit 'a3ae60d343661784e3f6f4566b276d8e6b8a06a7':
  libc: Add missing fdatasync() implementation
2010-09-28 00:19:31 -07:00
David 'Digit' Turner
9973a56422 libc: Add missing waitid() implementation.
Change-Id: I312ee608dbf9249e4886a10d45d13e3cda8a9042
2010-09-28 09:18:26 +02:00
David 'Digit' Turner
a3ae60d343 libc: Add missing fdatasync() implementation
Change-Id: I04bb655d77e414021e1f2a973329167ad76ca1c4
2010-09-28 09:17:17 +02:00
David 'Digit' Turner
914528cdc9 am 223ddfcf: Merge "libc: Add missing pipe2() declaration and implementation." into gingerbread
Merge commit '223ddfcfc4cb354641e70da31a60556248db5036' into gingerbread-plus-aosp

* commit '223ddfcfc4cb354641e70da31a60556248db5036':
  libc: Add missing pipe2() declaration and implementation.
2010-09-28 00:13:48 -07:00
David 'Digit' Turner
275cd48511 libc: Add missing pipe2() declaration and implementation.
Change-Id: Iacb914bd6ac5adc60c5671e6fef680ede21f9b0c
2010-09-27 17:33:08 +02:00
Keith Deacon
d7b156d2a3 am 3a1bbee3: Add eventfd system call support
Merge commit '3a1bbee36b773862e88c6f1895b607c0cd81b499' into gingerbread-plus-aosp

* commit '3a1bbee36b773862e88c6f1895b607c0cd81b499':
  Add eventfd system call support
2010-09-08 03:06:26 -07:00
Keith Deacon
3a1bbee36b Add eventfd system call support 2010-08-31 16:16:01 -05:00
Dima Zavin
18c5bcc66a Revert "Set SA_RESTORER in sigaction()"
This reverts commit e4fa46e75c.
2010-07-29 19:12:04 -07:00
David 'Digit' Turner
ab8b54101e libc: fix fstatfs() implementation.
The syscall expects the size of the buffer as the second argument.

Change-Id: I99ede2fec7fcd385ca03ff022c2cffa4297bea8d
2010-07-08 16:52:27 -07:00
David 'Digit' Turner
aa4b1d0429 Add missing sysinfo() implementation (already declared in <sys/sysinfo.h>) - DO NOT MERGE
Change-Id: Iac4eb5911ffe4a7ab72b84df44e907685ac816af
2010-06-09 13:12:15 -07:00
The Android Open Source Project
4aef0ae660 merge from open-source master
Change-Id: I2be62bce462ee53fe9519f433523bd7a44a73d40
2010-05-13 14:31:02 -07:00
Matt Fischer
e4fa46e75c Set SA_RESTORER in sigaction()
GDB looks for specific opcode sequences when trying to recognize a stack
frame as a signal trampoline.  The sequences it looks for happen to be those
created when SA_RESTORER is set, since glibc always sets a restorer.  This
patch does the same here, so that the trampolines can be correctly identified.

Change-Id: I0ac574a68818cb24d939c3527f3aaeb04b853d04
2010-05-12 14:18:36 -05:00
Mike Chan
9f6915631b bonic: libc: cpuacct support for setuid functions
Any of the setuid functions now updates /acct/uid/ with its own tid
before changing users. This is so we can properly account for cpu time
per uid.

Change-Id: I34186cf4d5228cac8439e582a9e26c01ef3011e4
Signed-off-by: Mike Chan <mike@android.com>
2010-03-02 18:18:04 -08:00
Andrei Popescu
eb9d5ed347 add sigaltstack syscall 2010-03-02 11:43:24 +00:00
San Mehat
75c5e25ae3 bionic: syscalls: Add ioprio_set/ioprio_get syscall wrappers
Signed-off-by: San Mehat <san@google.com>
2010-02-23 15:55:29 -08:00
David 'Digit' Turner
97cf7f3394 Implement clone() C library function properly.
Only provide an implementation for ARM at the moment, since
it requires specific assembly fragments (the standard syscall
stubs cannot be used because the child returns in a different
stack).
2010-01-25 11:18:30 -08:00