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2016-07-03fix misplaced indention in sys/procfs.hRich Felker1-1/+1
2016-07-03format mips bits/termios.h consistently mips64 and n32 versionsRich Felker1-2/+1
with this change, all three files are identical.
2016-07-03fix CBAUDEX in powerpc termios.hSzabolcs Nagy2-2/+2
it seems it was a typo.
2016-07-03fix TCS* definitions in mips termios.hSzabolcs Nagy3-9/+9
these were incorrectly using the generic definitions.
2016-07-03fix mips termios.h macro exposure/namespace issuesSzabolcs Nagy3-45/+42
same changes to the defined macros as in powerpc and generic bits.
2016-07-03fix powerpc termios.h macro exposure/namespace issuesSzabolcs Nagy2-24/+24
same changes as in the generic header. and BOTHER and IBSHIFT were removed (present in linux uapi but not in glibc) and TIOCSER_TEMT was added (present in glibc).
2016-07-03fix generic termios.h macro exposure/namespace issuesSzabolcs Nagy1-9/+14
add EXTA, EXTB, CIBAUD, CMSPAR, XCASE macros and hide them as well as CBAUD, ECHOCTL, ECHOPRT, ECHOKE, FLUSHO, PENDIN in standard mode. the new macros are both in glibc termios.h and in linux asm/termbits.h, the later also contains IBSHIFT and BOTHER, those were not added. these are not standard macros, but some of them are in the reserved namespace so could be exposed, the ones which are not reserved are CIBAUD, CMSPAR and XCASE (which was removed in issue 6), the rest got hidden to be consistent with glibc.
2016-07-03define appropriate feature test macros to get CBAUD from termios.hRich Felker2-0/+2
2016-07-03fix FIOQSIZE in arm ioctl.hSzabolcs Nagy3-0/+4
arm ioctl.h is the same as the generic one except this macro, so a workaround solution is used to avoid another ioctl.h copy.
2016-07-03remove termios2 related ioctls from sh ioctl.hSzabolcs Nagy1-4/+0
musl does not define these on other targets either.
2016-07-03fix TIOCMSET in mips ioctl.hSzabolcs Nagy3-3/+3
it seems it was a typo.
2016-07-03fix mips, mips64, mipsn32 TIOCM_* macros in ioctl.hSzabolcs Nagy3-42/+42
TIOCM_ macros were wrongly using the asm-generic/termios.h definitions instead of the mips specific ones from asm/termios.h
2016-07-03remove mips and powerpc ioctls that are missing from linux uapiSzabolcs Nagy5-31/+0
mips and powerpc use their own asm/ioctls.h, not the asm-generic/ioctls.h and they lack termiox macros that are available on other targets. see kernel commit 1d65b4a088de407e99714fdc27862449db04fb5c
2016-07-03add missing TIOC* macros to ioctl.hSzabolcs Nagy7-3/+40
these are defined in linux asm/ioctls.h. (powerpc64 and powerpc bits/ioctl.h are now identical)
2016-07-03add missing SIOCSIFNAME from linux/sockios.h to ioctl.hSzabolcs Nagy7-0/+7
glibc ioctl.h has it too.
2016-07-03remove ioctl macros that were removed from linux uapiSzabolcs Nagy7-32/+0
TIOCTTYGSTRUCT, TIOCGHAYESESP, TIOCSHAYESESP and TIOCM_MODEM_BITS were removed from the linux uapi and not present in glibc ioctl.h
2016-07-03use the generic ioctl.h for x86_64, x32 and aarch64Szabolcs Nagy3-607/+0
they were slightly different in musl, but should be the same: the linux uapi and glibc headers are not different.
2016-07-03add consistent reserved fields in mips64/n32 termios structuresRich Felker2-0/+4
the (unused) speed fields were omitted when these ports were first added (within this release cycle, so not present in any release yet) in accordance with how glibc defines the structure on mips archs. however their omission does not match existing musl practice/intent. glibc provides its own, mostly-unified termios structure definition and performs translation in userspace to match the kernel structure for the arch, but has gratuitous differences on a few archs like mips, presumably as a result of historical mistakes. some other libcs use the kernel definitions directly. musl essentially does that, by matching the kernel layout in the part of the structure the kernel will read/write, but leaves additional space at the end for extensibility. these are nominally the (nonstandard) speed fields and (on most archs) extra c_cc elements, but since they are not used they could be repurposed if there's ever a need.
2016-07-01fix posix_fadvise syscall args on powerpc, unify with arm fixRich Felker4-12/+12
commit 6d38c9cf80f47623e5e48190046673bbd0dc410b provided an arm-specific version of posix_fadvise to address the alternate argument order the kernel expects on arm, but neglected to address that powerpc (32-bit) has the same issue. instead of having arch variant files in duplicate, simply put the alternate version in the top-level file under the control of a macro defined in syscall_arch.h.
2016-06-30pthread: implement try/timed join variantsBobby Bingham2-3/+19
2016-06-29fix misordered syscall arguments for posix_fadvise on armRich Felker1-0/+12
the arm version of the syscall has a custom argument ordering to avoid needing a 7-argument syscall due to 64-bit argument alignment.
2016-06-29in posix_fadvise, don't bypass __syscall macro infrastructureRich Felker1-1/+1
when commit 0b6eb2dfb2e84a8a51906e7634f3d5edc230b058 added the parentheses around __syscall to invoke the function directly, there was no __syscall7 in the syscall macro infrastructure, so this hack was needed. commit 9a3bbce447403d735282586786dc436ec1ffbad4 fixed that but failed to remove the hack.
2016-06-29refactor name_from_dns in hostname lookup backendNatanael Copa1-14/+13
loop over an address family / resource record mapping to avoid repetitive code.
2016-06-29in performing dns lookups, check result from res_mkqueryNatanael Copa1-0/+4
don't send a query that may be malformed.
2016-06-29add RUSAGE_THREAD (Linux extension) definition to sys/resource.hRich Felker1-0/+1
2016-06-29fix incorrect definition of RUSAGE_CHILDREN in sys/resource.hRich Felker1-1/+1
the kernel ABI value for RUSAGE_CHILDREN is -1, not 1. the latter is actually interpreted as RUSAGE_THREAD, to obtain values for just the calling thread and not the whole process.
2016-06-27fix misaligned address buffers in gethostbyname[2][_r] resultsRich Felker1-7/+7
mistakenly ordering strings before addresses in the result buffer broke the alignment that the preceding code had set up.
2016-06-27fix failure to obtain EOWNERDEAD status for process-shared robust mutexesRich Felker3-3/+3
Linux's documentation (robust-futex-ABI.txt) claims that, when a process dies with a futex on the robust list, bit 30 (0x40000000) is set to indicate the status. however, what actually happens is that bits 0-30 are replaced with the value 0x40000000, i.e. bits 0-29 (containing the old owner tid) are cleared at the same time bit 30 is set. our userspace-side code for robust mutexes was written based on that documentation, assuming that kernel would never produce a futex value of 0x40000000, since the low (owner) bits would always be non-zero. commit d338b506e39b1e2c68366b12be90704c635602ce introduced this assumption explicitly while fixing another bug in how non-recoverable status for robust mutexes was tracked. presumably the tests conducted at that time only checked non-process-shared robust mutexes, which are handled in pthread_exit (which implemented the documented kernel protocol, not the actual one) rather than by the kernel. change pthread_exit robust list processing to match the kernel behavior, clearing bits 0-29 while setting bit 30, and use the value 0x7fffffff instead of 0x40000000 to encode non-recoverable status. the choice of value here is arbitrary; any value with at least one of bits 0-29 set should work just as well,
2016-06-21remove comments on copyright status from UTF-8 implementation filesRich Felker13-78/+0
despite clarifications made to the COPYRIGHT file in commit f0a61399330bae42beeb27d6ecd05570b3382a60, there continues to be confusion about whether the permissions granted actually apply to all files. I am the sole author of these files and clearly intend, and have always intended, for the grant of permission to apply to them.
2016-06-09avoid padding gaps in struct sockaddr_storageRich Felker1-1/+1
compilers are free not to copy, or in some cases to clobber, padding bytes in a structure. while it's an aliasing violation, and thus undefined behavior, to copy or manipulate other sockaddr types using sockaddr_storage, it seems likely that traditional code attempts to do so, and the original intent of the sockaddr_storage structure was probably to allow such usage. in the interest of avoiding silent and potentially dangerous breakage, ensure that there are no actual padding bytes in sockaddr_storage by moving and adjusting the size of the __ss_padding member so that it fits exactly. this change also removes a silent assumption that the alignment of long is equal to its size.
2016-06-09update sys/socket.h to linux v4.6Szabolcs Nagy1-1/+19
kernel connection multiplexor macros AF_KCM, PF_KCM, SOL_KCM were added in linux commit ab7ac4eb9832e32a09f4e8042705484d2fb0aad3 MSG_BATCH sendmsg flag for performance optimization was added in linux commit f092276d85b82504e8a07498f4e9e0c51f06745c SOL_* macros are now synced with linux socket.h which is not a uapi header and glibc did not have the macros either, but that has changed http://sourceware.org/ml/libc-alpha/2016-05/msg00322.html
2016-06-09add new tcp_info fields from linux v4.6Szabolcs Nagy1-0/+4
new fields and associated linux commit: tcpi_notsent_bytes, tcpi_min_rtt cd9b266095f422267bddbec88f9098b48ea548fc tcpi_data_segs_in, tcpi_data_segs_out a44d6eacdaf56f74fad699af7f4925a5f5ac0e7f
2016-06-09add CLONE_NEWCGROUP clone flag, new in linux v4.6Szabolcs Nagy1-0/+1
flag for new cgroup namespace, added in linux commit 5e2bec7c2248ae27c5b16cd97215ae05c1d39179
2016-06-09update siginfo struct for linux v4.6Szabolcs Nagy1-6/+11
x86 protection key faults are reported in the si_pkey field, added in linux commit cd0ea35ff5511cde299a61c21a95889b4a71464e
2016-06-09add ETH_P_MACSEC netinet/if_ether.h, new in linux v4.6Szabolcs Nagy1-0/+1
ethertype for macsec added in linux commit dece8d2b78d19df7fe5e4e965f1f0d1a3e188d1b
2016-06-09add SO_CNX_ADVICE to sys/socket.h, new in linux v4.6Szabolcs Nagy1-0/+1
new socket option so application can give advice about routing path quality of connected udp sockets, added in linux commit a87cb3e48ee86d29868d3f59cfb9ce1a8fa63314
2016-06-09add preadv2 and pwritev2 syscall numbers for linux v4.6Szabolcs Nagy11-0/+22
the syscalls take an additional flag argument, they were added in commit f17d8b35452cab31a70d224964cd583fb2845449 and a RWF_HIPRI priority hint flag was added to linux/fs.h in 97be7ebe53915af504fb491fb99f064c7cf3cb09. the syscall is not allocated for microblaze and sh yet.
2016-05-23fix a64l undefined behavior on ILP32 archs, wrong results on LP64 archsRich Felker1-3/+6
the difference of pointers is a signed type ptrdiff_t; if it is only 32-bit, left-shifting it by 30 bits produces undefined behavior. cast the difference to an appropriate unsigned type, uint32_t, before shifting to avoid this. the a64l function is specified to return a signed 32-bit result in type long. as noted in the bug report by Ed Schouten, converting implicitly from uint32_t only produces the desired result when long is a 32-bit type. since the computation has to be done in unsigned arithmetic to avoid overflow, simply cast the result to int32_t. further, POSIX leaves the behavior on invalid input unspecified but not undefined, so we should not take the difference between the potentially-null result of strchr and the base pointer without first checking the result. the simplest behavior is just returning the partial conversion already performed in this case, so do that.
2016-05-22fix undefined pointer arithmetic in CMSG_NXTHDR macroRich Felker1-3/+3
previously, the only way the stopping condition could be met with correct lengths in the headers invoked undefined behavior, adding sizeof(struct cmsghdr) beyond the end of the cmsg buffer. instead, compute and compare sizes rather than pointers.
2016-05-22fix the use of uninitialized value in regcompSzabolcs Nagy1-0/+2
the num_submatches field of some ast nodes was not initialized in tre_add_tag_{left,right}, but was accessed later. this was a benign bug since the uninitialized values were never used (these values are created during tre_add_tags and copied around during tre_expand_ast where they are also used in computations, but nothing in the final tnfa depends on them).
2016-05-12deduplicate __NR_* and SYS_* syscall number definitionsBobby Bingham17-5284/+890
2016-05-12x32: eliminate __X32_SYSCALL_BIT constantBobby Bingham1-317/+316
2016-05-12x32: remove arch-specific syscall remappingBobby Bingham1-20/+0
These system calls are already all remapped in an arch-agnostic manner in src/internal/syscall.h
2016-05-08fix spurious trailing whitespace in powerpc & powerpc64 bits/errno.hRich Felker2-2/+2
2016-05-08add powerpc64 portBobby Bingham42-1/+2342
2016-05-04fix redundant processing of --build flag in configure scriptLeMay, Michael1-1/+1
The --build flag is listed in two case statement entries in configure, which causes the second entry to be ignored. This patch removes it from the first entry. Signed-off-by: Michael LeMay <michael.lemay@intel.com>
2016-05-04fix incorrect protocol name and number for egpAndrew Kelley1-1/+1
previously if you called getprotobyname("egp") you would get NULL because \008 is invalid octal and so the protocol id was interpreted as 0 and name as "8egp".
2016-04-29follow standard configure behavior for cross compile prefixRich Felker1-1/+13
the standard configure interface, which our configure script tries to implement, identifies cross compiling (build != host) and searches for the properly-prefixed cross tools. our script was not doing that, forcing users to explicitly provide either CC or a CROSS_COMPILE tool prefix, and the more common choice, just providing CC, was incomplete because the Makefile would still invoke the native ar and ranlib programs. this happened to work when building on ELF-based systems with GNU binutils, but could easily fail when cross-compiling from dissimilar systems. like before, and like the standard configure behavior, an explicit CC or CROSS_COMPILE variable on the command line or in the environment overrides the automatic prefixing.
2016-04-28update COPYRIGHT file to clarify that permissions apply for all filesRich Felker1-14/+23
these changes are the outcome of a long mailing list thread that took place March 2016, "musl licensing". among minor other issues, prospective users were not confident that the whole-project MIT license would grant permission for files to which the COPYRIGHT file expressed a belief that copyright not apply, if it turned out that these files were actually subject to copyright. in accordance with the original intent of applying a permissive license to the project, which was that license issues not be an obstacle to use, the text which was causing confusion is removed. no new claims of copyright are made, but new text is added to clarify that the grant of permissions applies to all files, and an explicit grant of permission to use public headers and crt files without attribution has been made. this patch was reviewed and approved by all substantial contributors to the affected files: Bobby Bingham, John Spencer (rofl0r), Nicholas J. Kain, Rich Felker, Richard Pennington, Stefan Kristiansson, and Szabolcs Nagy.
2016-04-26fix FILE buffer underflow in ungetwcRich Felker1-3/+3
commit 7e816a6487932cbb3cb71d94b609e50e81f4e5bf (version 1.1.11 release cycle) moved the code that performs wchar_t to multibyte conversion across code that used the resulting length in bytes, thereby breaking the unget buffer space check in ungetwc and clobbering up to three bytes below the start of the buffer. for allocated FILEs (all read-enabled FILEs except stdin), the underflow clobbers at most the FILE-specific locale pointer. no stores are performed through this pointer, but subsequent loads may result in a crash or mismatching encoding rule (UTF-8 multibyte vs byte-based). for stdin, the buffer lies in .bss and the underflow may clobber another object. in practice, for libc.so the adjacent object seems to be stderr's buffer, which is completely unused, but this could vary with linking options, or when static linking. applications which do not attempt to use more than one character of ungetwc pushback, or which do not use ungetwc, are not affected.
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