This patch adds support for AArch64 to the syscall interface. The kernel
implementation exports a set of canonical syscalls, therefore some of
the userspace exported syscalls are implemented as stubs based on the
canonical set.
Change-Id: Ia965d71e97769b8be9d7655193fc40303964c4df
Signed-off-by: Serban Constantinescu <serban.constantinescu@arm.com>
From the release notes:
Changes affecting current and future time stamps:
Libya has switched its time zone back to UTC+2 without DST,
instead of UTC+1 with DST. (Thanks to Even Scharning.)
Western Sahara (Africa/El_Aaiun) uses Morocco's DST rules.
(Thanks to Gwillim Law.)
Changes affecting future time stamps:
Acre and (we guess) western Amazonas will switch from UTC-4 to UTC-5
on 2013-11-10. This affects America/Rio_Branco and America/Eirunepe.
(Thanks to Steffen Thorsen.)
Add entries for DST transitions in Morocco in the year 2038.
This avoids some year-2038 glitches introduced in 2013g.
(Thanks to Yoshito Umaoka for reporting the problem.)
Change-Id: Ic855df19773e3fbf13b941b5bfa91dcee9e181e1
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
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
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
(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
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
This patches fixes the definitions for STDINT_LIMITS on __LP64__
systems.
Change-Id: I5eb1664e9ef7c303432a2b041c99cec663816b75
Signed-off-by: Serban Constantinescu <serban.constantinescu@arm.com>
Add 64-bit stat structure mapping 64-bit stat syscall.
Change-Id: Ice517616391bee1d556b6c03e7f5ee610050e6c6
Signed-off-by: Pavel Chupin <pavel.v.chupin@intel.com>
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
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
Also clean up <signal.h> and revert the hacks that were necessary
for 64-bit in linker/debugger.cpp until now.
Change-Id: I3b0554ca8a49ee1c97cda086ce2c1954ebc11892
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
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
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
For some reason the new cortex-a15 memcpy code from ARM is really bad
for really large copies. This change forces us to go down the old path
for all copies.
All of my benchmarks show the new version is faster for large copies, but
something is going on that I don't understand.
Bug: 10838353
Change-Id: I01c16d4a2575e76f4c69862c6f78fd9024eb3fb8
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
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
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
Warnings are errors for all home-grown bionic code, and the arch-specific
code now counts as home-grown bionic code (it was mistakenly counted as
"not ours" before).
Change-Id: I9c6a881b0dc596bae7dfe112c5c189e073800a3a
The x86_64 build was failing because clone.S had a call to __thread_entry which
was being added to a different intermediate .a on the way to making libc.so,
and the linker couldn't guarantee statically that such a relocation would be
possible.
ld: error: out/target/product/generic_x86_64/obj/STATIC_LIBRARIES/libc_common_intermediates/libc_common.a(clone.o): requires dynamic R_X86_64_PC32 reloc against '__thread_entry' which may overflow at runtime; recompile with -fPIC
This patch addresses that by ensuring that the caller and callee end up in the
same intermediate .a. While I'm here, I've tried to clean up some of the mess
that led to this situation too. In particular, this removes libc/private/ from
the default include path (except for the DNS code), and splits out the DNS
code into its own library (since it's a weird special case of upstream NetBSD
code that's diverged so heavily it's unlikely ever to get back in sync).
There's more cleanup of the DNS situation possible, but this is definitely a
step in the right direction, and it's more than enough to get x86_64 building
cleanly.
Change-Id: I00425a7245b7a2573df16cc38798187d0729e7c4
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
libc/tzcode/localtime.c: In function 'differ_by_repeat':
libc/tzcode/localtime.c:338:2: error: comparison is always false due to limited range of data type [-Werror=type-limits]
Change-Id: Ic84be6391a66e9d50ed98f41d865387c77a60ffa
Normally we don't have -Werror for upstream code, but for those warnings
that probably point to 32-bit assumptions about pointers, we want those
warnings to always be errors.
Change-Id: Ibece9caf09b2f7989ca600ef448d07868669a8fb
We shouldn't have been passing the bottom 32 bits of the address used
for pthread_join to the kernel.
Change-Id: I487e5002d60c27adba51173719213abbee0f183f
This patch adds an optional alias list to SYSCALLS.TXT. It is used to
create aliases for a syscall. For x86-64, lseek64 is an alias for lseek.
Change-Id: Icb11fd2bb461ea4f5f0a26bfc585471d7d7cc468
Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
Signed-off-by: Pavel Chupin <pavel.v.chupin@intel.com>
Although 'register' is deprecated, we need to use v1, and there's
no way to do that through register constraints on the assembler
fragment itself.
Change-Id: Ib5b12c4c3652513d10cc61d4a4b11314ece25663
From the release notes:
Changes affecting current and near-future time stamps
Morocco now observes DST from the last Sunday in March to the last
Sunday in October, not April to September respectively. (Thanks
to Steffen Thorsen.)
(cherry picked from commit 40f072192f)
Change-Id: I247f8cf4ef32ec5d6e6fe3845f9a8977b7e748b9
In c++11, register has been deprecated, and
libc is now built as gnu++11
From the documentation:
A register specifier is a hint to the implementation
that the variable so declared will be heavily used.
[ Note: The hint can be ignored and in most implementations
it will be ignored if the address of the variable is taken.
This use is deprecated (see D.2)
Change-Id: I459dc3f5f9de63fc09eeda3bc6700f31bdf20f6f
From the release notes:
Changes affecting near-future time stamps
Tocantins will very likely not observe DST starting this spring.
(Thanks to Steffen Thorsen.)
Jordan will likely stay at UTC+3 indefinitely, and will not fall
back this fall.
Palestine will fall back at 00:00, not 01:00. (Thanks to Steffen Thorsen.)
(cherry picked from commit 4ced7ef05a)
Change-Id: Icd4754694fbe3b7c475a63666eeeab36c72908ac
From the release notes:
Changes affecting near-future time stamps
This year Fiji will start DST on October 27, not October 20.
(Thanks to David Wheeler for the heads-up.) For now, guess that
Fiji will continue to spring forward the Sunday before the fourth
Monday in October.
Changes affecting time stamps before 1970
Pacific/Johnston is now a link to Pacific/Honolulu. This corrects
some errors before 1947.
Some zones have been turned into links, when they differ from
existing zones only in older data that was likely invented or that
differs only in LMT or transition from LMT. These changes affect
only time stamps before 1943. The affected zones are:
Africa/Juba, America/Anguilla, America/Aruba, America/Dominica,
America/Grenada, America/Guadeloupe, America/Marigot,
America/Montserrat, America/St_Barthelemy, America/St_Kitts,
America/St_Lucia, America/St_Thomas, America/St_Vincent,
America/Tortola, and Europe/Vaduz. (Thanks to Alois Treindl for
confirming that the old Europe/Vaduz zone was wrong and the new
link is better for WWII-era times.)
Change Kingston Mean Time from -5:07:12 to -5:07:11. This affects
America/Cayman, America/Jamaica and America/Grand_Turk time stamps
from 1890 to 1912.
Change the UT offset of Bern Mean Time from 0:29:44 to 0:29:46.
This affects Europe/Zurich time stamps from 1853 to 1894. (Thanks
to Alois Treindl).
Change the date of the circa-1850 Zurich transition from 1849-09-12
to 1853-07-16, overriding Shanks with data from Messerli about
postal and telegraph time in Switzerland.
Data changes affecting behavior of tzselect and similar programs
Country code BQ is now called the more-common name "Caribbean Netherlands"
rather than the more-official "Bonaire, St Eustatius & Saba".
Remove from zone.tab the names America/Montreal, America/Shiprock,
and Antarctica/South_Pole, as they are equivalent to existing
same-country-code zones for post-1970 time stamps. The data for
these names are unchanged, so the names continue to work as before.
(cherry picked from commit 35b123ef1e)
Change-Id: Ieb2627cc817db93280ceabe4034800bf36ca3f5f
From the release notes:
Changes affecting current and near-future time stamps
Morocco now observes DST from the last Sunday in March to the last
Sunday in October, not April to September respectively. (Thanks
to Steffen Thorsen.)
Change-Id: I9a657a1b819ce17bb424474d4bcdae093f4c4dca
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
This is basically half of I5de76f6c46ac87779f207d568a86bb453e2414de from
Pavel Chupin <pavel.v.chupin@intel.com>, but with the stock upstream
setjump/sigsetjmp and H.J. Lu's suggested changes to __rt_sigreturn.
Change-Id: I8167ec228faeb2065391e5bec0413cca662f3d33
FORTIFY_SOURCE prevents buffer overflows from occurring.
However, the error message often implies that we only
detect it, not prevent it.
Bring more clarity to the error messages by emphasizing
prevention over detection.
Change-Id: I5f3e1478673bdfc589e6cc4199fce8e52e197a24
Got it all wrong on first patch. Somehow that didn't affect system
build, neither arm nor x86... something to think about.
Change-Id: I45416d843aad44af62841c6f6ab607ccf3f012ea
Signed-off-by: Pavel Chupin <pavel.v.chupin@intel.com>
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
Make sure the buffer we're dealing with has enough room.
Might as well check for memory issues while we're here,
even though I don't imagine they'll happen in practice.
Change-Id: I0ae1f0f06aca9ceb91e58c70183bb14e275b92b5
memcpy.a15.S/strcmp.a15.S files were submitted by ARM for use as the basis
for the memcpy/strcmp implementations in cortex-a15.
memset.S was moved in to the generic directory.
NOTE: memcpy.a9.S was submitted by Linaro to be the basis for the memcpy
for cortex-a9/cortex-a15 but has not been incorporated yet.
Bug: 10971279
Merge from internal master.
(cherry-picked from 48fc3e8b9f)
Change-Id: I8f9297578990d517f004e4e8840e2b2cbd5a47d8
The check for __ARM_FEATURE_DSP being defined is pointless since it
is always defined.
Bug: 10971279
Merge from internal master.
(cherry-picked from d2642fa70c)
Change-Id: If23ab3271f4da0c38cd531ffdc9a7e5eed6ec5dc
