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* add bits/hwcap.h and include it in sys/auxv.hSzabolcs Nagy2016-10-2010-0/+138
| | | | | | | | | aarch64, arm, mips, mips64, mipsn32, powerpc, powerpc64 and sh have cpu feature bits defined in linux for AT_HWCAP auxv entry, so expose those in sys/auxv.h it seems the mips hwcaps were never exposed to userspace neither by linux nor by glibc, but that's most likely an oversight.
* elf.h: update EM_ elf machine defines and add R_BPF_ definesSzabolcs Nagy2016-10-201-1/+101
| | | | | | | | sync with gabi: http://www.sco.com/developers/gabi/latest/ch4.eheader.html EM_BPF is new in linux v4.8 and officially assigned: https://lists.iovisor.org/pipermail/iovisor-dev/2016-June/000266.html added related relocs too.
* add ETH_P_NCSI to netinet/if_ether.h from linux v4.8Szabolcs Nagy2016-10-201-0/+1
| | | | see linux commit 6389eaa7fa9c3ee6c7d39f6087b86660d17236ac
* add sh syscall numbers from linux v4.8Szabolcs Nagy2016-10-201-0/+14
| | | | | sh was updated in linux commit 74bdaa611fa69368fb4032ad437af073d31116bd to have numbers for new syscalls.
* fix preadv2 and pwritev2 syscall numbers on x32 for linux v4.8Szabolcs Nagy2016-10-201-2/+2
| | | | | the numbers were wrong in musl, but they were also wrong in the kernel and got fixed in v4.8 commit 3ebfd81f7fb3e81a754e37283b7f38c62244641a
* use dynamic buffer for getmntentNatanael Copa2016-10-201-4/+13
| | | | | | | | | | overlayfs may have fairly long lines so we use getline to allocate a buffer dynamically. The buffer will be allocated on first use, expand as needed, but will never be free'ed. Downstream bug: http://bugs.alpinelinux.org/issues/5703 Signed-off-by: Natanael Copa <ncopa@alpinelinux.org>
* fix integer overflows and uncaught EOVERFLOW in printf coreRich Felker2016-10-202-46/+89
| | | | | | | | | | | | | | | | | | | | | | | | | | | | this patch fixes a large number of missed internal signed-overflow checks and errors in determining when the return value (output length) would exceed INT_MAX, which should result in EOVERFLOW. some of the issues fixed were reported by Alexander Cherepanov; others were found in subsequent review of the code. aside from the signed overflows being undefined behavior, the following specific bugs were found to exist in practice: - overflows computing length of floating point formats with huge explicit precisions, integer formats with prefix characters and huge explicit precisions, or string arguments or format strings longer than INT_MAX, resulted in wrong return value and wrong %n results. - literal width and precision values outside the range of int were misinterpreted, yielding wrong behavior in at least one well-defined case: string formats with precision greater than INT_MAX were sometimes truncated. - in cases where EOVERFLOW is produced, incorrect values could be written for %n specifiers past the point of exceeding INT_MAX. in addition to fixing these bugs, we now stop producing output immediately when output length would exceed INT_MAX, rather than continuing and returning an error only at the end.
* fix integer overflow in float printf needed-precision computationRich Felker2016-10-191-1/+1
| | | | | | | | | | | | | | if the requested precision is close to INT_MAX, adding LDBL_MANT_DIG/3+8 overflows. in practice the resulting undefined behavior manifests as a large negative result, which is then used to compute the new end pointer (z) with a wildly out-of-bounds value (more overflow, more undefined behavior). the end result is at least incorrect output and character count (return value); worse things do not seem to happen, but detailed analysis has not been done. this patch fixes the overflow by performing the intermediate computation as unsigned; after division by 9, the final result necessarily fits in int.
* fix regexec with haystack strings longer than INT_MAXRich Felker2016-10-061-26/+28
| | | | | | | | | | | | we inherited from TRE regexec code that's utterly wrong with respect to the integer types it's using. while it doesn't appear that compilers are producing unsafe output, signed integer overflows seem to happen, and regexec fails to find matches past offset INT_MAX. this patch fixes the type of all variables/fields used to store offsets in the string from int to regoff_t. after the changes, basic testing showed that regexec can now find matches past 2GB (INT_MAX) and past 4GB on x86_64, and code generation is unchanged on i386.
* fix missing integer overflow checks in regexec buffer size computationsRich Felker2016-10-061-5/+18
| | | | | | | | | | | most of the possible overflows were already ruled out in practice by regcomp having already succeeded performing larger allocations. however at least the num_states*num_tags multiplication can clearly overflow in practice. for safety, check them all, and use the proper type, size_t, rather than int. also improve comments, use calloc in place of malloc+memset, and remove bogus casts.
* fix strftime %y for negative tm_yearSzabolcs Nagy2016-10-061-0/+1
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* fix getservby*_r result pointer value on errorDaniel Sabogal2016-09-242-0/+3
| | | | | | | this is a clone of the fix to the gethostby*_r functions in commit fe82bb9b921be34370e6b71a1c6f062c20999ae0. the man pages document that the getservby*_r functions set this pointer to NULL if there was an error or if no record was found.
* remove dead case in gethostbyname2_rDaniel Sabogal2016-09-241-2/+0
| | | | | this case statement was accidently left behind when this function was refactored in commit e8f39ca4898237cf71657500f0b11534c47a0521.
* fix undefined behavior in sched.h cpu_set_t usageRich Felker2016-09-191-3/+3
| | | | | | | | | | | since cpu sets can be dynamically allocated and have variable size, accessing their contents via ->__bits is not valid; performing pointer arithmetic outside the range of the size of the declared __bits array results in undefined beahavior. instead, only use cpu_set_t for fixed-size cpu set objects (instantiated by the caller) and as an abstract pointer type for dynamically allocated ones. perform all accesses simply by casting the abstract pointer type cpuset_t * back to unsigned long *.
* simplify/refactor fflush and make fflush_unlocked an alias for fflushRich Felker2016-09-181-30/+23
| | | | | | | | | | | | | | | | | | previously, fflush_unlocked was an alias for an internal backend that was called by fflush, either for its argument or in a loop for each file if a null pointer was passed. since the logic for the latter was in the main fflush function, fflush_unlocked crashed when passed a null pointer, rather than flushing all open files. since fflush_unlocked is not a standard function and has no specification, it's not clear whether it should be expected to accept null pointers like fflush does, but a reasonable argument could be made that it should. this patch eliminates the helper function, simplifying fflush, and makes fflush_unlocked an alias for fflush, which is valid because the two functions agree in their behavior in all cases where their behavior is defined (the unlocked version has undefined behavior if another thread could hold locks).
* add missing *_unlocked and wcsftime_l prototypes to wchar.hDaniel Sabogal2016-09-161-0/+15
| | | | these functions had been implemented, but prototypes were not made available
* fix if_indextoname error caseDaniel Sabogal2016-09-161-1/+6
| | | | | posix requires errno to be set to ENXIO if the interface does not exist. linux returns ENODEV instead so we handle this.
* fix ifru_data and ifcu_buf types in net/if.hDaniel Sabogal2016-09-161-2/+2
| | | | | glibc, freebsd, and openbsd use character pointers (caddr_t) for these fields. only linux uses void pointer for the ifru_data type.
* fix printf regression with alt-form octal, zero flag, and field widthRich Felker2016-09-161-1/+1
| | | | | | | | | | commit b91cdbe2bc8b626aa04dc6e3e84345accf34e4b1, in fixing another issue, changed the logic for how alt-form octal adds the leading zero to adjust the precision rather than using a prefix character. this wrongly suppressed the zero flag by mimicing an explicit precision given by the format string. switch back to using a prefix character. based on bug report and patch by Dmitry V. Levin, but simplified.
* restore _Noreturn to __assert_failRich Felker2016-08-302-2/+2
| | | | | | | | | | | | this reverts commit 2c1f8fd5da3306fd7c8a2267467e44eb61f12dd4. without the _Noreturn attribute, the compiler cannot use asserts to perform reachability/range analysis. this leads to missed optimizations and spurious warnings. the original backtrace problem that prompted the removal of _Noreturn was not clearly documented at the time, but it seems to happen only when libc was built without -g, which also breaks many other backtracing cases.
* getdtablesize: fix returning hard instead of soft rlimitOlivier Brunel2016-08-301-1/+1
| | | | This makes the result consistent with sysconf(_SC_OPEN_MAX).
* fix FFSYNC by changing it to O_SYNCDuncan Overbruck2016-08-301-1/+1
| | | | O_FSYNC was never defined and is legacy/wrong, nothing seems to use it.
* configure: handle mipsisa64* triplet as a mips64 targetSzabolcs Nagy2016-08-301-1/+1
| | | | | the gnu config.sub script recognizes several mipsisa64* cpu types that musl supports as mips64 targets.
* math: fix 128bit long double inverse trigonometric functionsSzabolcs Nagy2016-08-301-1/+1
| | | | | | | | | there was a copy paste error that could cause large ulp errors in atan2l, atanl, asinl and acosl on aarch64, mips64 and mipsn32. (the implementation is from freebsd fdlibm, but the tail end of the polynomial was wrong. 128 bit long double functions are not yet tested so this went undetected.)
* verify that ttyname refers to the same file as the fdSzabolcs Nagy2016-08-301-4/+11
| | | | | | linux containers use separate mount namespace so the /proc symlink might not point to the right device if the fd was opened in the parent namespace, in this case return ENOENT.
* microblaze: add syscall numbers from linux v4.7Szabolcs Nagy2016-08-301-0/+3
| | | | | userfaultfd, membarrier and mlock2 syscalls got wired up in linux commit fbce3befd60d40639bf3c6b60f7477b2f988f92d
* add SS_AUTODISARM sigaltstack ss_flags from linux v4.7 to signal.hSzabolcs Nagy2016-08-301-0/+2
| | | | | only matters if swapcontext is used in a signal handler running on an altstack, new in linux commit 2a74213838104a41588d86fd5e8d344972891ace
* add UDP_ENCAP_GTP0, UDP_ENCAP_GTP1U from linux v4.7 to netinet/udp.hSzabolcs Nagy2016-08-301-0/+2
| | | | | for GPRS tunneling protocol, new in linux commit 459aa660eb1d8ce67080da1983bb81d716aa5a69
* add PF_QIPCRTR, AF_QIPCRTR from linux v4.7 to sys/socket.hSzabolcs Nagy2016-08-301-1/+3
| | | | | macros for qualcom ip router protocol, new in linux commit bdabad3e363d825ddf9679dd431cca0b2c30f881
* fix pread/pwrite syscall calling convention on shRich Felker2016-08-114-2/+7
| | | | | | | despite sh not generally using register-pair alignment for 64-bit syscall arguments, there are arch-specific versions of the syscall entry points for pread and pwrite which include a dummy argument for alignment before the 64-bit offset argument.
* revert unrelated change that slipped into last commitRich Felker2016-07-131-1/+1
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* fix regression in tcsetattr on all mips archsRich Felker2016-07-134-10/+10
| | | | | revert commit 8c316e9e49d37ad92c2e7493e16166a2afca419f. it was wrong and does not match how the kernel API works.
* fix asctime day/month names not to vary by localeRich Felker2016-07-071-5/+4
| | | | | the FIXME comment here was overlooked at the time locale support was added.
* remove obsolete and unused gethostbyaddr implementationRich Felker2016-07-061-52/+0
| | | | | | | this code was already under #if 0, but could be confusing if a reader didn't notice that, and it's almost surely full of bugs and/or inconsistencies with the current code that uses the gethostbyname2_r backend.
* remove obsolete gitignore rulesBobby Bingham2016-07-061-2/+0
| | | | | Since commit 2f853dd6b9a95d5b13ee8f9df762125e0588df5d, all generated headers are generated under the obj directory, which is already ignored.
* remove or1k version of sem.hBobby Bingham2016-07-061-11/+0
| | | | | It's identical to the generic version, after evaluating the endian preprocessor checks in the generic version.
* release 1.1.15 v1.1.15Rich Felker2016-07-052-1/+40
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* add stdc-predef.h for library-level predefined macrosRich Felker2016-07-031-0/+10
| | | | | | | | | | | modern compilers (for gcc, versions 4.8 and later) automatically pre-include <stdc-predef.h> to obtain the values of certain predefined macros specified by ISO C but which reflect properties of the library implementation, not just the compiler. provide values indicating that wchar_t is Unicode-encoded and that Annex F (IEEE floating point) is supported unless the compiler indicates otherwise. based on patch by Masanori Ogino.
* improve abort fallback behavior when raising SIGABRT fails to terminateRich Felker2016-07-031-1/+5
| | | | | | | | | | | | | | | | | | | | | | these changes still do not yield a fully-conforming abort, but they fix two known issues: - per POSIX, termination via SIGKILL is not "abnormal", but both ISO C and POSIX require abort to yield abnormal termination. - raising SIGKILL fails to do anything to pid 1 in some containers. now, the trapping instruction produced by a_crash() is expected to produce abnormal termination, without the risk of invoking a signal handler since SIGILL and SIGSEGV are blocked, and _Exit, which contains an infinite loop analogous to the one being removed from abort itself, is used as a last resort. this implementation still fails to produce an exit status as if the process terminated via SIGABRT in cases where SIGABRT is blocked or ignored, but fixing that is not easy; the obvious pseudo-solutions all have subtle race conditions where a concurrent fork or exec can expose incorrect signal state.
* make brace placement in public header typedef'd structs consistentRich Felker2016-07-0311-34/+17
| | | | | | commit befa5866ee30d09c0c96e88af2eabff5911342ea performed this change for struct definitions that did not also involve typedef, but omitted the latter.
* add EF_SH_ sh specific macros to elf.hSzabolcs Nagy2016-07-031-1/+22
| | | | | last time elf.h was thoroughly updated sh was not yet supported so these processor specific e_flags were missing.
* add NT_ARM_SYSTEM_CALL to elf.hSzabolcs Nagy2016-07-031-0/+1
| | | | new regset in linux v3.18 for ptrace.
* add missing x86 relocs to elf.hSzabolcs Nagy2016-07-031-2/+5
| | | | | see https://sourceware.org/ml/libc-alpha/2016-01/msg00822.html
* add DT_MIPS_RLD_MAP_REL to elf.hSzabolcs Nagy2016-07-031-1/+2
| | | | marks different RLD_MAP for debugging PIE binaries.
* add SHF_COMPRESSED section flag to elf.hSzabolcs Nagy2016-07-031-0/+23
| | | | | following http://www.sco.com/developers/gabi/latest/ch4.sheader.html
* add powerpc tls optimization related definitions to elf.hSzabolcs Nagy2016-07-031-2/+6
| | | | | see https://sourceware.org/ml/libc-alpha/2015-03/msg00580.html
* add nios2 definitions to elf.hSzabolcs Nagy2016-07-031-0/+50
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* update elf.h with mips abi flags supportSzabolcs Nagy2016-07-031-1/+70
| | | | | following https://sourceware.org/ml/libc-alpha/2014-05/msg00332.html
* update elf.h with new aarch64 relocsSzabolcs Nagy2016-07-031-1/+13
| | | | | add ilp32 related relocs and alternative names for a few macros following https://sourceware.org/ml/libc-alpha/2014-11/msg00455.html
* update elf.h with powerpc64 elfv2 abi related macrosSzabolcs Nagy2016-07-031-2/+8
| | | | | | see https://sourceware.org/ml/libc-alpha/2013-11/msg00315.html https://sourceware.org/ml/libc-alpha/2013-11/msg00314.html
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-05-12 08:32:20 +0000