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
malloc and family were not declared with __attribute__((alloc_size)).
This was (sometimes) preventing FORTIFY_SOURCE related functions
from knowing the size of the buffer it's dealing with, inhibiting
FORTIFY_SOURCE protections.
Add __attribute__((alloc_size))
Information about the alloc_size attribute can be found
at http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html
Change-Id: Ia2f0a445f0170a7325f69259b5e7fb35a9f14921
Clang and gcc default to different standards, so we should be explicit
about the versions we want to compile for.
Change-Id: I65495a2392dd29f36373b94c616c2506173e6033
I've no idea what _BITSIZE was supposed to be, glibc doesn't have it,
the BSDs don't have it, and no code is currently using it. But having
it set unconditionally to 32 sounds like a bad idea.
Change-Id: I900235c1489afba891fff0bc3b43e9d593249a4f
Clang (prior to 3.4) does not actually provide a declaration (or definition)
of _Unwind_GetIP() for ARM. We can work around this by writing our own
basic implementation using the available primitive operations.
Change-Id: If6c66846952d8545849ad32d2b55daa4599cfe2c
Use basic .c versions of all functions for x86_64 until they are
manually optimized and .s versions released.
Change-Id: I59bba08931e894822db485c8803c2665c226234a
Signed-off-by: Pavel Chupin <pavel.v.chupin@intel.com>
This was causing conflicting declarations for the library definitions of
common functions like sprintf(), snprintf(), and strchr().
Change-Id: I5daaa8a58183aa0d4d0fae8a7cb799671810f576
This is used to set/get TLS on x86_64. There's no public declaration
of this because it's not meant to be used outside the C library, like
glibc (though we don't currently have any visibility controls to ensure
this).
Change-Id: I5fc0a5e3ffc3f4cd597d92ee685ab19568ea18f7
Signed-off-by: Pavel Chupin <pavel.v.chupin@intel.com>
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
* Tune syscall stubs generator for 4th target: x86_64
* Update SYSCALLS.TXT with x86_64 syscalls:
- Most of the x86 syscalls are equally supported
- *32 syscalls are not supported on 64-bit
- *64 syscalls are replaced accordingly without 64 suffix
- Some syscalls are not supported, replaced with x86_64 analog
Syscalls are regenerated as separate patch for review convenience.
Change-Id: I4ea2e0f13759b0aa61f05208ca68da8d6bc7c048
Signed-off-by: Pavel Chupin <pavel.v.chupin@intel.com>
Copyright headers shouldn't contain the filename (and especially
shouldn't contain a different file's filename).
Change-Id: I82690a3bf371265402bc16f5d2fbb9299c3a1926
Manual changes:
cpp.py: cope with macros that refer to other macros.
defaults.py: x86 no longer always implies __i386__; use __i386__ to replace
the kernel CONFIG_X86_32 flag.
asm/page.h: the upstream page.h isn't a uapi header and no longer includes
the stuff we were using it for. Let's just have our own static file, since
it's the same for all our architectures (both 32- and 64-bit).
sys/select.h: we used to use the various FD_SET-related macros from the
kernel header files, but they've gone. Adjust by adding trivial equivalent
definitions.
Automated changes:
libc/kernel/arch-x86, libc/kernel/common: regenerated from
external/kernel-headers.
Change-Id: I84fc0ed52dc742e043b4ae300fd3b58ee99b7fcd
If "n" is smaller than the size of "src", then we'll
never read off the end of src. It makes no sense to call
__strncpy_chk2 in those circumstances.
For example, consider the following code:
int main() {
char src[10];
char dst[5];
memcpy(src, "0123456789", sizeof(src));
strncpy(dst, src, sizeof(dst));
dst[4] = '\0';
printf("%s\n", dst);
return 0;
}
In this code, it's clear that the strncpy will never read off
the end of src.
Change-Id: I9cf58857a0c5216b4576d21d3c1625e2913ccc03
localtime.c and strftime.c are still quite different from upstream because of
our extensions, but the other files continue to be identical, and the two
exceptions should be otherwise identical.
From the tzcode2013e release notes:
Changes affecting Godthab time stamps after 2037 if version mismatch
Allow POSIX-like TZ strings where the transition time's hour can
range from -167 through 167, instead of the POSIX-required 0
through 24. E.g., TZ='FJT-12FJST,M10.3.1/146,M1.3.4/75' for the
new Fiji rules. This is a more-compact way to represent
far-future time stamps for America/Godthab, America/Santiago,
Antarctica/Palmer, Asia/Gaza, Asia/Hebron, Asia/Jerusalem,
Pacific/Easter, and Pacific/Fiji. Other zones are unaffected by
this change. (Derived from a suggestion by Arthur David Olson.)
Allow POSIX-like TZ strings where daylight saving time is in
effect all year. E.g., TZ='WART4WARST,J1/0,J365/25' for Western
Argentina Summer Time all year. This supports a more-compact way
to represent the 2013d data for America/Argentina/San_Luis.
Because of the change for San Luis noted above this change does not
affect the current data. (Thanks to Andrew Main (Zefram) for
suggestions that improved this change.)
Where these two TZ changes take effect, there is a minor extension
to the tz file format in that it allows new values for the
embedded TZ-format string, and the tz file format version number
has therefore been increased from 2 to 3 as a precaution.
Version-2-based client code should continue to work as before for
all time stamps before 2038. Existing version-2-based client code
(tzcode, GNU/Linux, Solaris) has been tested on version-3-format
files, and typically works in practice even for time stamps after
2037; the only known exception is America/Godthab.
Changes affecting API
Support for floating-point time_t has been removed.
It was always dicey, and POSIX no longer requires it.
(Thanks to Eric Blake for suggesting to the POSIX committee to
remove it, and thanks to Alan Barrett, Clive D.W. Feather, Andy
Heninger, Arthur David Olson, and Alois Treindl, for reporting
bugs and elucidating some of the corners of the old floating-point
implementation.)
The signatures of 'offtime', 'timeoff', and 'gtime' have been
changed back to the old practice of using 'long' to represent UT
offsets. This had been inadvertently and mistakenly changed to
'int_fast32_t'. (Thanks to Christos Zoulos.)
The code avoids undefined behavior on integer overflow in some
more places, including gmtime, localtime, mktime and zdump.
Changes affecting code internals
Minor changes pacify GCC 4.7.3 and GCC 4.8.1.
Changes affecting documentation and commentary
Documentation and commentary is more careful to distinguish UT in
general from UTC in particular. (Thanks to Steve Allen.)
From the tzcode2013f release notes:
Changes affecting API
The types of the global variables 'timezone' and 'altzone' (if present)
have been changed back to 'long'. This is required for 'timezone'
by POSIX, and for 'altzone' by common practice, e.g., Solaris 11.
These variables were originally 'long' in the tz code, but were
mistakenly changed to 'time_t' in 1987; nobody reported the
incompatibility until now. The difference matters on x32, where
'long' is 32 bits and 'time_t' is 64. (Thanks to Elliott Hughes.)
Change-Id: I14937c42a391ddb865e4d89f0783961bcc6baa21
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.)
Change-Id: Iccee57578eef2ab51c519a23f151bc1963262ffe
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.
Change-Id: If78a517687532afcc0b22c7df664b5955f6e1564
Much of the per-architecture duplication can be removed, so let's do so
before we add the 64-bit architectures.
Change-Id: Ieb796503c8e5353ea38c3bab768bb9a690c9a767
Fortify calls to recv() and recvfrom().
We use __bos0 to match glibc's behavior, and because I haven't
tested using __bos.
Change-Id: Iad6ae96551a89af17a9c347b80cdefcf2020c505
