Commit Graph

75 Commits

Author SHA1 Message Date
Dmitriy Ivanov
adab51aefd Added script generating additions to libgcc_compat.c from linker errors
bug: 12234455
Change-Id: Icac35237f06e75745da5a91d9c4c941d7df4f84d
2014-02-20 11:34:08 -08:00
Elliott Hughes
986f906710 Fix build by avoiding the _C_LABEL macro.
Change-Id: Ide367c2b65071388bd95fbc81a4ed6ae94aec4e4
2014-02-18 16:42:36 -08:00
Elliott Hughes
db1ea34748 Implement some of the missing LFS64 support.
This gives us:

* <dirent.h>
  struct dirent64
  readdir64, readdir64_r, alphasort64, scandir64

* <fcntl.h>
  creat64, openat64, open64.

* <sys/stat.h>
  struct stat64
  fstat64, fstatat64, lstat64, stat64.

* <sys/statvfs.h>
  struct statvfs64
  statvfs64, fstatvfs64.

* <sys/vfs.h>
  struct statfs64
  statfs64, fstatfs64.

This also removes some of the incorrect #define hacks we've had in the
past (for stat64, for example, which we promised to clean up way back
in bug 8472078).

Bug: 11865851
Bug: 8472078
Change-Id: Ia46443521918519f2dfa64d4621027dfd13ac566
2014-02-18 15:39:24 -08:00
Elliott Hughes
b3a23bd017 Build syscall stubs in their own library.
This lets us lose the auto-generated makefiles.

Change-Id: I2de0c71b3b9c08f9cce8f4ff7fd7254dda008c86
2014-02-11 13:52:02 -08:00
Chris Dearman
5043212b76 [MIPS64] Add syscall related files
Change-Id: I2f5d05df0e767538a6fe467ca0a2386325f8b71f
Signed-off-by: Chris Dearman <chris.dearman@imgtec.com>
Signed-off-by: Raghu Gandham <raghu.gandham@imgtec.com>
Signed-off-by: Duane Sand <duane.sand@imgtec.com>
2014-02-06 15:39:38 -08:00
Colin Cross
d1973ca513 bionic: rename aarch64 target to arm64
Rename aarch64 build targets to arm64.  The gcc toolchain is still
aarch64.

Change-Id: Ia92d8a50824e5329cf00fd6f4f92eae112b7f3a3
2014-01-23 18:35:39 -08:00
Christopher Ferris
e4bc756121 Add cfi directives to x86 syscalls.
Modify the syscalls script to generate the cfi directives for x86
syscalls.

Update the x86 syscalls.

Change-Id: Ia1993dc714a7e79f917087fff8200e9a02c52603
2014-01-06 16:39:10 -08:00
Elliott Hughes
887e1140fe Clean up <sched.h>.
This patch switches to using the uapi constants. It also adds the missing
setns system call, fixes sched_getcpu's error behavior, and fixes the
gensyscalls script now ARM is uapi-only too.

Change-Id: I8e16b1693d6d32cd9b8499e46b5d8b0a50bc4f1d
2014-01-02 12:05:50 -08:00
Christopher Ferris
ed45970ac5 Add cfi directives to all arm assembly.
Since the ENTRY/END macros now have .cfi_startproc/.cfi_endproc, most of the
custom arm assembly has no unwind information. Adding the proper cfi directives
for these and removing the arm directives.

Update the gensyscalls.py script to add these cfi directives for the generated
assembly. Also fix the references to non-uapi headers to the proper uapi
header.

In addition, remove the kill.S, tkill.S, tgkill.S for arm since they are not
needed at all. The unwinder (libunwind) is able to properly unwind using the
normal abort.

After this change, I can unwind through the system calls again.

Bug: 11559337
Bug: 11825869
Bug: 11321283

Change-Id: I18b48089ef2d000a67913ce6febc6544bbe934a3
2013-12-02 19:13:12 -08:00
Elliott Hughes
ed74484dcb Stop using the non-uapi <linux/err.h> header file.
We only need it for MAX_ERRNO, and it's time we had somewhere to put
the little assembler utility macros we've been putting off writing.

Change-Id: I9354d2e0dc47c689296a34b5b229fc9ba75f1a83
2013-11-07 10:31:05 -08:00
Serban Constantinescu
feaa89a1bc AArch64: Add support for AArch64 to the syscall interface
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>
2013-10-28 16:16:34 -07:00
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
fff6e272e9 Use hidden visibility for generated stubs whose names begin with underscores.
Change-Id: Idb39fd04b7a14114801624e744e76e0e7913d951
2013-10-24 17:03:20 -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
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
0437f3ff29 Refactor the syscall generation script.
Primarily so that the new x86_64 alias functionality is now available for
all architectures.

Change-Id: I9fde59093a1d08de98923f121a6e3d05ec5801d2
2013-10-07 23:53:13 -07:00
H.J. Lu
6fe4e87954 Add an optional alias list to SYSCALLS.TXT
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>
2013-10-07 21:37:12 +04:00
Pavel Chupin
f12a18b850 x86_64: Add x86_64 syscalls and tune gen scripts for x86_64
* 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>
2013-10-01 13:27:07 -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
5e52279256 Simplify the SYSCALLS.TXT format.
This will make addition of new architectures less unpleasant.

Change-Id: I77c866a63b686e8e70709d08fcf52e8a2d37310a
2013-09-24 00:35:31 -07:00
Elliott Hughes
18bc975bfe Slight script cleanup; make gensyscalls work from any directory.
Also remove a ton of dead code.

Change-Id: I1315623695a004f643b155f121cbafe24b715b8a
2013-06-17 10:39:33 -07:00
Elliott Hughes
85aeb49144 Don't avoid IPv6 when looking for new tzdata.
Our internal IPv6 FTP networking problems have been fixed.

Change-Id: I9949a13fa20a3b0f3845e565e1461320078d3f14
2013-04-24 10:50:45 -07:00
Elliott Hughes
21da42ea91 Disable IPv6 when looking for tzdata updates.
My problems connecting to ftp.iana.org are only via IPv6.

Change-Id: I42e4bae7981ec4b64822f745a7a15544d77ef22d
2013-04-22 13:44:50 -07:00
Elliott Hughes
676e66db25 Add signature checking to HTTP tzdata updates.
Change-Id: Idcfd217eb215d6a170e6884be8d8ad28cd4fe70d
2013-04-22 11:41:57 -07:00
Elliott Hughes
f8dff7d449 Rename the tzdata update tool, and add HTTP support.
The FTP server is currently unavailable, but the HTTP server is working
fine.

Change-Id: If7f2f396e89aca022a60af531f3604523b7bf95c
2013-04-22 11:11:43 -07:00
Elliott Hughes
a51916b58b Fix the SYSCALLS.TXT documentation and remove a dead script.
We use the system call constants from the kernel header files now,
so there's no need to check that they've been correctly transcribed
into SYSCALLS.TXT.

This is a work in progress. I've added TODOs to SYSCALLS.TXT explaining
what's left to do.

Change-Id: I3b86acfe7f84b4da1c802ee5a4ef13a2e83e7939
2013-04-03 10:08:09 -07:00
Elliott Hughes
e6ddfc55c8 Remove some dead script code and fix a script comment.
Change-Id: I91ca466d1b6f8a39da50ce61acebc268d0daab3a
2013-03-25 14:09:52 -07:00
Elliott Hughes
1b91c6c11f Stop generating <sys/linux-syscalls.h>.
The <asm/unistd.h> files contain the canonical data, and
<sys/glibc-syscalls.h> contain new glibc-compatible names,
and if you #include the standard <sys/syscall.h> you get
both sets of names.

Change-Id: I9919c080931c0ba1660f5e37c6a6265ea716d603
2013-03-22 18:56:24 -07:00
Elliott Hughes
cda62094ef Use the correct names for the __ARM_NR_* syscalls.
This lets us move all the ARM syscall stubs over to the kernel <asm/unistd.h>.
Our generated <sys/linux-syscalls.h> is now unused, but I'll remove that in a
later change.

Change-Id: Ie5ff2cc4abce1938576af7cbaef615a79c7f310d
2013-03-22 13:53:43 -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
Elliott Hughes
9724ce3a09 Don't #define SYS_ constants unless they make sense for the current architecture.
Fixes the MIPS and x86 builds. strace tests whether syscalls
are supported using #ifdef of the appropriate SYS_ constant.

Change-Id: I90be118dc42abfdaf5b0f9b1e676e8601f55106e
2013-03-21 19:44:36 -07:00
Elliott Hughes
8ecf225827 Provide glibc-compatible SYS_* aliases for the __NR_* constants.
This helps us remove another external/strace bionic hack.

Change-Id: I3e82c0d2fd27e479be98f096e05b666fd16f8eb3
2013-03-21 18:06:55 -07:00
Elliott Hughes
af7f2f2fcf Fix a bug in ZoneCompactor that meant the zonetab offset was wrong.
Bug: 8391426
Change-Id: Ia4a8889b5a613aa96bb3fb5d89a921c913ff7626
2013-03-14 17:10:24 -07:00
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
Elliott Hughes
cd6780b167 Remove dead code from gensyscalls.py.
Change-Id: I0df69f8fd990f829ccbfcd5123c17b523d5a4d45
2013-02-07 14:07:00 -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
c95eb57405 Clean up trailing whitespace in the kernel headers.
And fix the scripts so they stop letting trailing whitespace through.

Change-Id: Ie109fbe1f63321e565ba0fa60fee8e9cf3a61cfc
2013-01-30 10:13:07 -08:00
Matthieu Castet
faa0fdb119 arm syscall : for eabi call_default don't use stack
In the default case, we don't need to use the stack, we can save r7 with
ip register (that what does eglibc).

This allow to fix vfork data corruption
(see 3884bfe966), because vfork now don't
use the stack.
2013-01-16 14:53:37 +01:00
Chris Dearman
285b02582b Verify architecture neutral syscall numbers
Also removed some dead code and fixed comment

Change-Id: I5d6a04b4af3d95e34368136cf2eeb3c9b6f99769
Signed-off-by: Chris Dearman <chris@mips.com>
2012-11-29 12:04:23 -08:00
Elliott Hughes
5d2ef8724d Upgrade to tzdata2012j.
This reflects the following changes recently circulated on the tz mailing list:

  Libya moved to CET [2012-11-11], but with DST planned [2013].
  (Thanks to Even Scharning, Steffen Thorsen, and Tim Parenti.)

I also had to change the script to cope with:

  Signatures now have the extension .asc, not .sign, as that's more
  standard.  (Thanks to Phil Pennock.)

Change-Id: Ie9711c5c796b3c122daea9690929edcc3ddd32da
2012-11-26 14:51:39 -08:00
Elliott Hughes
e3063f4e55 Upgrade to tzdata2012i.
Also support GPG signature verification of updates, and fix remaining
pylint complaints.

The 2012i release of the tz data reflects the following changes recently
circulated on the tz mailing list:

* Cuba switches from DST [2012-11-04] at 01:00.  (Thanks to Steffen Thorsen.)

Change-Id: Ie81d395afa40aa217a0196aad8ca1f9a870bbc31
2012-11-05 08:53:28 -08:00
Elliott Hughes
2393535f0d Support zone.tab in bionic, and remove the file format version.
Bug: 7012465
Change-Id: I6335c91ebadc609fae85bad94db972be7574b6e4
2012-10-22 14:47:58 -07:00
Elliott Hughes
dc595d8308 Merge "Change ZoneCompator to generate the single "tzdata" file." 2012-10-19 17:12:37 -07:00
Elliott Hughes
5b1497acdb Change ZoneCompator to generate the single "tzdata" file.
Also remove the obsolete individual files, and the temporary script
that converted between the formats.

Bug: 7012465
Change-Id: I5a4030098e4d53e747fd6d395df2679d1567ee1f
2012-10-19 15:45:46 -07:00
Elliott Hughes
4612763b44 Update generate-NOTICE.py to know about tzdata.
Also regenerate the NOTICE files. One had slipped behind.

Bug: 7012465
Change-Id: Ice2e909b521472eb1acd53d8151038bebe19984a
2012-10-19 14:55:19 -07:00
Elliott Hughes
328a484588 Do all the zoneinfo.* file generation in Java.
Bug: 7012465
Change-Id: Ia5d5ad75db94d680a6b34ccc26eb68d5bd2bfc29
2012-10-19 13:03:52 -07:00
Elliott Hughes
eb06129c5c Switch bionic over to using libcore's copy of libcore.util.ZoneInfo.
Bug: 7012465
Change-Id: I1225494c5d77a20fd48be1e904d8695ef95860e3
2012-10-19 12:05:24 -07:00
Elliott Hughes
fb018a2dde Put all the tzdata in one file.
I'll come back and remove the separate files (and change the regular 'generate'
script) when the separate files are obsolete, but in the interim period, it's
easier to have both old and new files available.

Bug: 7012465
Change-Id: I36e2fd49c08ff79ded6eca1c5bc4c08837cc490a
2012-10-17 14:24:50 -07:00
Elliott Hughes
965b867512 Update libc/NOTICE and record the incantation.
Change-Id: I0673d6263de2c5a21cd549f18c0648d0fa4bb40f
2012-09-13 16:51:57 -07:00