Commit Graph

92 Commits

Author SHA1 Message Date
Christopher Ferris
15b91e92a0 Fix x86 cfi directives for syscalls.
The syscall generation always used 4 bytes for each push cfi directive.
However, the first push should always use an offset of 8 bytes, each
subsequent push after that is only 4 bytes though.

Change-Id: Ibaabd107f399ef67010b9a08213783957c2f74a9
2014-05-29 19:04:36 -07:00
Elliott Hughes
45bf4c315d Add some more BSD symbols to the list.
Bug: 11156955
Change-Id: I07489ec63536121dbfc372170ef5cf60a5c58948
2014-05-22 18:53:21 -07:00
Christopher Ferris
df22a121b2 Add cfi directives for arm64 assembler.
Fix syscall generator to add cfi directives and add the directives
for all arm64 assembler.

Bug: 15138290
Change-Id: I7f0e4a16c141ac624e5276917a3a1ed45778e057
2014-05-21 17:46:52 -07:00
Neil Fuller
768051405e Merge "Treat zero or >1 dat files as an error" 2014-05-21 16:18:59 +00:00
Neil Fuller
43f3715953 Treat zero or >1 dat files as an error
Based on feedback from
I7efbd6f453fe2b3e71f564121ff0f64a74289d86

Change-Id: Ie131ab8475083350dc183d9f6d5ea7a0b0617c5b
2014-05-21 17:18:17 +01:00
Elliott Hughes
29f2906bda Merge "Add a few more symbols to check-symbols-glibc." 2014-05-21 15:23:35 +00:00
Neil Fuller
2278488546 Merge "Change update-tzdata.py to update ICU data as well" 2014-05-21 08:11:40 +00:00
Elliott Hughes
b497c43336 Add a few more symbols to check-symbols-glibc.
Bug: 11156955
Change-Id: Iee0bae6f9742eca188abc7a337371c50888a0ad6
2014-05-20 20:58:23 -07:00
Neil Fuller
246c688020 Change update-tzdata.py to update ICU data as well
The update-tzdata.py tool now uses downloaded Olson data
to update ICU (*new*) at the same time as it updates Bionic
data.

Change-Id: I7efbd6f453fe2b3e71f564121ff0f64a74289d86
2014-05-20 11:48:43 +01:00
Elliott Hughes
5a93e88c7f Add a script for finding symbols in bionic that aren't in glibc.
Bug: 11156955
Change-Id: I9772f054f6a92b842531df084dee0ea9c28806be
2014-05-19 18:01:07 -07:00
Elliott Hughes
bfa582d032 Update the NOTICE files and improve the script slightly.
Change-Id: Ia131634cd97ca9523e1b63dce41f66247cbaa311
2014-05-05 16:23:15 -07:00
Dmitriy Ivanov
6a45fe9872 Fix for libgcc compat generation script.
Taking into account possibility that external symbol
  could have been an OBJECT instead of function.

  b/14090368

Change-Id: Iac173d2dd1309ed53024306578137c26b1dbbf15
2014-04-18 17:34:20 -07:00
Elliott Hughes
22a0d6fcdc Bring the generate-NOTICE script up to date.
Change-Id: I63981a2f3cb0a4d7ee7e1a2b4ce00f77898ac25b
2014-03-06 15:10:22 -08:00
Dmitriy Ivanov
54d49ac75b Merge "Added script generating additions to libgcc_compat.c from linker errors" 2014-02-20 19:40:08 +00:00
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
d465eb4e76 Remove the useless _C_LABEL from generated system calls.
Change-Id: Id1d2fd39972652831ea825f6f9cf940b08f42b5c
2014-02-19 18:59:19 -08:00
Elliott Hughes
9abbbdc534 Make mips/mips64 syscall stubs more like the other architectures.
Change-Id: I55f8c1a95f643a6e484f12fbcc25e2c77e55b6b8
2014-02-19 14:54:31 -08:00
Elliott Hughes
eae27dc55a Make mips generated assembler more like the mips64 stuff.
I broke the mips build yesterday because it doesn't use
<private/bionic_asm.h> like the other architectures, including mips64.
I want to move mips closer to mips64 to try to avoid this kind of thing
in future.

Change-Id: Idb985587ff355b9e5e765c1f5671dc0144cd2488
2014-02-19 12:20:00 -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