Commit Graph

140 Commits

Author SHA1 Message Date
Rich Felker
fc5f16d182 mips cache flush/ctl syscall support and header 2012-11-04 17:06:31 -05:00
Rich Felker
4eb4844b31 fix issues with wait constants in stdlib.h
the W* namespace is not reserved, so the nonstandard ones must be
moved under extension features. also WNOHANG and WUNTRACED were
missing.
2012-10-21 19:15:11 -04:00
Rich Felker
3609e019f3 always expose accept4
it will be in the next version of POSIX
2012-09-29 17:44:33 -04:00
Rich Felker
f600105eef LFS64 alias for prlimit
issue reported/requested by Justin Cormack
2012-09-21 04:05:01 -04:00
Rich Felker
662da62eb7 add clock_adjtime, remap_file_pages, and syncfs syscall wrappers
patch by Justin Cormack, with slight modification
2012-09-16 22:26:23 -04:00
Rich Felker
a660180c6a mincore syscall wrapper 2012-09-09 16:37:19 -04:00
Rich Felker
2416c63b81 fix up lfs64 junk for preadv/pwritev 2012-09-09 16:33:47 -04:00
Rich Felker
ea544bfe80 add preadv/pwritev syscall wrappers 2012-09-09 16:29:33 -04:00
Rich Felker
208eb584ef syscall organization overhaul
now public syscall.h only exposes __NR_* and SYS_* constants and the
variadic syscall function. no macros or inline functions, no
__syscall_ret or other internal details, no 16-/32-bit legacy syscall
renaming, etc. this logic has all been moved to src/internal/syscall.h
with the arch-specific parts in arch/$(ARCH)/syscall_arch.h, and the
amount of arch-specific stuff has been reduced to a minimum.

changes still need to be reviewed/double-checked. minimal testing on
i386 and mips has already been performed.
2012-09-08 22:43:14 -04:00
Rich Felker
6cf8bfdb64 add acct, accept4, setns, and dup3 syscalls (linux extensions)
based on patch by Justin Cormack
2012-09-08 20:22:08 -04:00
Rich Felker
455f96857f remove all remaining redundant __restrict/__inline/_Noreturn defs 2012-09-08 17:14:52 -04:00
Rich Felker
b7afd7a7ec sysmacros major/minor: result should have type unsigned int, not dev_t 2012-09-08 02:42:27 -04:00
Rich Felker
231b9d1880 add timerfd interfaces (untested) 2012-09-08 00:21:02 -04:00
Rich Felker
c1a9658bd1 default features: make musl usable without feature test macros
the old behavior of exposing nothing except plain ISO C can be
obtained by defining __STRICT_ANSI__ or using a compiler option (such
as -std=c99) that predefines it. the new default featureset is POSIX
with XSI plus _BSD_SOURCE. any explicit feature test macros will
inhibit the default.

installation docs have also been updated to reflect this change.
2012-09-07 23:13:55 -04:00
Rich Felker
400c5e5c83 use restrict everywhere it's required by c99 and/or posix 2008
to deal with the fact that the public headers may be used with pre-c99
compilers, __restrict is used in place of restrict, and defined
appropriately for any supported compiler. we also avoid the form
[restrict] since older versions of gcc rejected it due to a bug in the
original c99 standard, and instead use the form *restrict.
2012-09-06 22:44:55 -04:00
Rich Felker
fb247fafa0 avoid "inline" in public headers for strict c89 compatibility
while musl itself requires a c99 compiler, some applications insist on
being compiled with c89 compilers, and use of "inline" in the headers
was breaking them. much of this had been avoided already by just
skipping the inline keyword in pre-c99 compilers or modes, but this
new unified solution is cleaner and may/should result in better code
generation in the default gcc configuration.
2012-09-02 12:46:06 -04:00
Rich Felker
7dba0494e8 type exposure fixes in sys/sem.h 2012-08-24 17:01:17 -04:00
Rich Felker
7650390de8 add missing xattr functions
not sure why these were originally omitted..
2012-08-15 08:31:44 -04:00
Rich Felker
7fee5f9606 fix socket.h on mips
why does mips have to be gratuitously incompatible in every possible
imaginable way?
2012-08-05 14:23:40 -04:00
Rich Felker
d426b04533 add ioperm/iopl syscalls
based on patches by orc and Isaac Dunham, with some fixes. sys/io.h
exists and contains prototypes for these functions regardless of
whether the target arch has them; this is a bit unorthodox but I don't
think it will break anything. the function definitions do not exist
unless the appropriate SYS_* syscall number macro is defined, which
should make sure configure scripts looking for these functions don't
find them on other systems.

presently, sys/io.h does not have the inb/outb/etc. port io
macros/functions. I'd be surprised if ioperm/iopl are useful without
them, so they probably need to be added at some point in appropriate
bits/io.h files...
2012-07-23 16:54:53 -04:00
Rich Felker
207460d097 add extended attributes syscalls
based on patch by orc and Isaac Dunham, with some fixes.
2012-07-23 16:39:44 -04:00
Rich Felker
96107564e2 workaround another sendmsg kernel bug on 64-bit machines
the kernel wrongly expects the cmsg length field to be size_t instead
of socklen_t. in order to work around the issue, we have to impose a
length limit and copy to a local buffer. the length limit should be
more than sufficient for any real-world use; these headers are only
used for passing file descriptors and permissions between processes
over unix sockets.
2012-07-12 21:37:54 -04:00
Rich Felker
9cf9c39e48 add process_vm_readv and process_vm_writev syscall wrappers
based on a patch submitted by Kristian L. <email@thexception.net>
2012-06-23 21:38:47 -04:00
Rich Felker
57d5fff5f7 header file fixes: multiple include guard consistency and correctness
one file was reusing another file's macro name, and many had
inconsistent underscores and application of SYS prefix, etc.

patch by Szabolcs Nagy (nsz)
2012-06-15 21:52:53 -04:00
Rich Felker
1429ce9ba2 fix sysinfo, try 2. it seems to work this time. 2012-06-07 23:06:04 -04:00
Rich Felker
e86b18a63e sysinfo struct was utter nonsense; no idea where it came from.
this broke the busybox "free" utility (memory reporting) and possibly
other things like uptime.
2012-06-07 22:58:19 -04:00
Rich Felker
3b94daba71 _GNU_SOURCE is supposed to imply _LARGEFILE64_SOURCE
this is ugly and stupid, but now that the *64 symbol names exist, a
lot of broken GNU software detects them in configure, then either
breaks during build due to missing off64_t definition, or attempts to
compile without function declarations/prototypes. "fixing" it here is
easier than telling everyone to add yet another feature test macro to
their builds.
2012-06-04 08:03:56 -04:00
Rich Felker
671ffab776 various header cleanups, some related to _BSD_SOURCE addition
there is no reason to avoid multiple identical macro definitions; this
is perfectly legal C, and even with the maximal warning options
enabled, gcc does not issue any warning for it.
2012-05-22 22:04:55 -04:00
Rich Felker
419ae6d5c9 support _BSD_SOURCE feature test macro
patch by Isaac Dunham. matched closely (maybe not exact) to glibc's
idea of what _BSD_SOURCE should make visible.
2012-05-22 21:52:08 -04:00
Rich Felker
bfb29b666e fix missing parens in bit op macros (param.h) 2012-05-10 12:10:44 -04:00
Rich Felker
2e41887f54 and another bug in setbit, etc. macros.. 2012-05-10 11:59:07 -04:00
Rich Felker
e0ff0d34dc fix typo in sys/param.h that broke setbit, etc. macros
this is all junk, but some programs use it.
2012-05-10 11:55:16 -04:00
Rich Felker
f0b85fd926 add *64 junk for sys/*.h headers 2012-05-04 00:31:25 -04:00
Rich Felker
ba6a9e7734 legacy junk compatibility grab-bag
- add the rest of the junk traditionally in sys/param.h
- add prototypes for some nonstandard functions
- add _GNU_SOURCE to their source files so the compiler can check proto
2012-04-18 12:22:24 -04:00
Rich Felker
570edb19d1 fix typo in inotify.h 2012-02-07 22:48:58 -05:00
Rich Felker
147f355cb6 apparently gnu caddr_t is supposed to be char *, not unsigned long
this type should never be used anyway, but some old junk uses it..
2012-02-01 14:12:19 -05:00
Rich Felker
4619901ec4 add linux setfs[ug]id syscall wrappers
patch by Jeremy Huntwork
2012-01-28 21:09:50 -05:00
Rich Felker
c3db56c4cb remove useless "extern" keywords in headers 2012-01-26 10:53:37 -05:00
Rich Felker
6a193804a8 add MIN/MAX macros to sys/param.h
this is a nonstandard junk header anyway, so just do what apps expect..
2012-01-24 22:51:27 -05:00
Rich Felker
477e72ac4a add legacy futimes and lutimes functions
based on patch by sh4rm4. these functions are deprecated; futimens and
utimensat should be used instead in new programs.
2012-01-24 19:50:44 -05:00
Rich Felker
26f38328d6 add prlimit syscall wrapper 2012-01-20 22:10:47 -05:00
Rich Felker
3ed8c9f2df fix all missing instances of __cplusplus checks/extern "C" in headers
patch by Arvid Picciani (aep)
2011-11-10 20:40:06 -05:00
Rich Felker
03860303c2 fix some details in ugly stuff that doesn't belong in libc
patches by sh4rm4, presumably needed to make gdb or some similar junk
happy...
2011-10-17 12:23:04 -04:00
Rich Felker
fd142e5ec4 cleanup various minor issues reported by nsz
the changes to syscall_ret are mostly no-ops in the generated code,
just cleanup of type issues and removal of some implementation-defined
behavior. the one exception is the change in the comparison value,
which is fixed so that 0xf...f000 (which in principle could be a valid
return value for mmap, although probably never in reality) is not
treated as an error return.
2011-09-26 00:59:28 -04:00
Rich Felker
c41a76f58c FD_ISSET must return an int. this is the easiest way.
casting to int would not be correct because high bits could be lost.
mapping the high bits down onto low bits would be costlier in the
common case where the result is just used in a conditional. changing
the type of the bit array elements to int would permute the order of
the bit array on 64-bit big endian systems, so that's not an option
either.
2011-09-23 22:24:33 -04:00
Rich Felker
1587224ed6 sys/user.h may need stdint.h 2011-09-23 14:24:57 -04:00
Rich Felker
fd9e01e92a fix some header typos 2011-09-20 20:02:48 -04:00
Rich Felker
32b82cf5cd fix the fsid_t structure to match name of __val
this is a case of poorly written man pages not matching the actual
implementation, and why i hate implementing nonstandard interfaces
with no actual documentation of how they're intended to work.
2011-09-20 11:16:27 -04:00
Rich Felker
114c80f141 fix the definition of struct statvfs to match lsb abi
at the same time, make struct statfs match the traditional definition
and make it more useful, especially the fsid_t stuff.
2011-09-19 23:35:48 -04:00
Rich Felker
53431b091b fix broken multi-inclusion guard in sys/reg.h 2011-09-19 11:56:09 -04:00
Rich Felker
b0c088ee55 cleanup more bits cruft (sysmacros and socket) 2011-09-18 16:34:13 -04:00
Rich Felker
71f7a3c2ce implement ptrace syscall wrapper (untested) 2011-09-15 13:03:13 -04:00
Rich Felker
1f5ff26cd7 fix broken FD_* macros on 64-bit targets
1 is too small if int is 32-bit but unsigned long is 64-bit. be
explicit and use 1UL.
2011-08-27 19:42:13 -04:00
Rich Felker
6b1d3817cf add missing signalfd flags 2011-07-09 18:06:59 -04:00
Rich Felker
5a2e74ebd2 copy-paste error in prctl.h 2011-06-18 07:39:05 -04:00
Rich Felker
7f5471529c fix some struct padding to match LSB/glibc ABI where it may be helpful 2011-06-16 17:11:35 -04:00
Rich Felker
15b77d52c9 eventfd syscall wrapper and read/write wrappers 2011-05-08 00:03:00 -04:00
Rich Felker
4b5f054098 move wait.h macros out of bits. they do not vary. 2011-04-21 14:27:28 -04:00
Rich Felker
f492c95401 include signal.h to avoid thorny __sigcontext/sigcontext issues
this is explicitly allowed by POSIX
2011-04-21 14:21:57 -04:00
Rich Felker
33a3f202d1 add useless type fd_mask. it's in the reserved namespace. 2011-04-14 16:23:31 -04:00
Rich Felker
07e865cc5a numerous fixes to sysv ipc
some of these definitions were just plain wrong, others based on
outdated ancient "non-64" versions of the kernel interface.

as much as possible has now been moved out of bits/*

these changes break abi (the old abi for these functions was wrong),
but since they were not working anyway it can hardly matter.
2011-04-13 16:45:43 -04:00
Rich Felker
45a3219944 fix typos on RLIM_NLIMITS, remove _GNU_SOURCE test for it
RLIM_* is in the reserved namespace for this header
2011-04-13 13:22:19 -04:00
Rich Felker
cac7d837cc fix and cleanup suseconds_t/timeval stuff (broken on 64-bit)
trash in the upper 32 bits was making the kernel sleep forever in
select on 64-bit systems.
2011-04-13 13:16:49 -04:00
Rich Felker
7ecab79f58 add some traditional aliases to stat.h 2011-04-12 12:01:20 -04:00
Rich Felker
209f2bbd95 add missing rlimit macros 2011-04-12 11:50:14 -04:00
Rich Felker
28bde3b787 cleanup types stuff in headers, fix missing u_int*_t in sys/types.h 2011-04-11 10:38:00 -04:00
Rich Felker
2555fe1b6d add some ugly legacy type names in sys/types.h (u_char etc.) 2011-04-10 22:47:43 -04:00
Rich Felker
691b20bec0 add legacy BSD-style timer*() macros in sys/time.h 2011-04-10 22:46:46 -04:00
Rich Felker
4a19634f07 add missing UTIME_* macros in sys/stat.h 2011-04-10 18:32:59 -04:00
Rich Felker
095ad15673 fix typo in sys/msg.h 2011-04-06 17:50:38 -04:00
Rich Felker
104d013441 fix incorrect (and conflicting on LP64 archs) types for sysv ipc msgq functions 2011-04-06 00:02:20 -04:00
Rich Felker
8b61c81693 alternate name for syslog.h 2011-04-05 12:13:54 -04:00
Rich Felker
685e40bb09 syscall overhaul part two - unify public and internal syscall interface
with this patch, the syscallN() functions are no longer needed; a
variadic syscall() macro allows syscalls with anywhere from 0 to 6
arguments to be made with a single macro name. also, manually casting
each non-integer argument with (long) is no longer necessary; the
casts are hidden in the macros.

some source files which depended on being able to define the old macro
SYSCALL_RETURNS_ERRNO have been modified to directly use __syscall()
instead of syscall(). references to SYSCALL_SIGSET_SIZE and SYSCALL_LL
have also been changed.

x86_64 has not been tested, and may need a follow-up commit to fix any
minor bugs/oversights.
2011-03-19 21:36:10 -04:00
Rich Felker
b0e83133e2 add some ioctl stuff to sys/mount.h 2011-03-19 18:58:32 -04:00
Rich Felker
d00ff2950e overhaul syscall interface
this commit shuffles around the location of syscall definitions so
that we can make a syscall() library function with both SYS_* and
__NR_* style syscall names available to user applications, provides
the syscall() library function, and optimizes the code that performs
the actual inline syscalls in the library itself.

previously on i386 when built as PIC (shared library), syscalls were
incurring bus lock (lock prefix) overhead at entry and exit, due to
the way the ebx register was being loaded (xchg instruction with a
memory operand). now the xchg takes place between two registers.

further cleanup to arch/$(ARCH)/syscall.h is planned.
2011-03-19 18:51:42 -04:00
Rich Felker
f5ba2bc9ca various legacy and linux-specific stuff
this commit is part of an effort to make more of busybox work
out-of-the-box.
2011-03-18 21:52:26 -04:00
Rich Felker
b446c55b6f remove some old cruft from sys/types.h 2011-03-14 11:49:17 -04:00
Rich Felker
ac12eb91bd fcntl.h should make availabel the mode constants from sys/stat.h
also remove some legacy nonsense that crept in.
2011-03-08 12:35:35 -05:00
Rich Felker
a53d2f3425 namespace cleanup in sys/mman.h 2011-03-03 00:32:15 -05:00
Rich Felker
eda8e9da76 implement futimens and utimensat 2011-02-27 03:48:57 -05:00
Rich Felker
b1b465c438 cleanup namespace in sys/time.h 2011-02-27 03:48:19 -05:00
Rich Felker
f552c792c7 include sys/sysmacros.h from sys/types.h when _GNU_SOURCE is defined 2011-02-20 16:34:10 -05:00
Rich Felker
b1b752372f fix typo in inotify structure 2011-02-20 16:21:39 -05:00
Rich Felker
2b43ef8fc7 make sys/param.h not depend on PATH_MAX and NAME_MAX
this is a nonstandard header used only by backwards programs, but for
some reason it's extremely popular. the recent namespace cleanup fixes
broke it, because PATH_MAX and NAME_MAX will not be defined unless an
approriate feature test macro has been defined. moreover, it's too
late to just #define _GNU_SOURCE in param.h, since limits.h may have
already been included.

let's just hard-code standard values and be done with it.
2011-02-20 00:28:10 -05:00
Rich Felker
095a5ae6f2 add syscall wrappers for inotify 2011-02-19 02:52:29 -05:00
Rich Felker
52874c82a8 prototype wait3 and wait4 2011-02-19 02:26:11 -05:00
Rich Felker
d5ca067c7b add portable lchown (trivial to support and a few ancient things want it..) 2011-02-17 23:13:46 -05:00
Rich Felker
e882756311 reorganize pthread data structures and move the definitions to alltypes.h
this allows sys/types.h to provide the pthread types, as required by
POSIX. this design also facilitates forcing ABI-compatible sizes in
the arch-specific alltypes.h, while eliminating the need for
developers changing the internals of the pthread types to poke around
with arch-specific headers they may not be able to test.
2011-02-17 17:16:20 -05:00
Rich Felker
74eea628cf extensive header cleanup for standards conformance & correctness
thanks to Peter Mazinger (psm) for pointing many of these issues out
and submitting a patch on which this commit is loosely based
2011-02-14 18:41:25 -05:00
Rich Felker
0b44a0315b initial check-in, version 0.5.0 2011-02-12 00:22:29 -05:00