| Commit message (Expand) | Author | Files | Lines |
|---|
| 2016-10-20 | math: fix pow signed shift ub•••j is int32_t and thus j<<31 is undefined if j==1, so j is changed to
uint32_t locally as a quick fix, the generated code is not affected.
(this is a strict conformance fix, future c standard may allow 1<<31,
see DR 463. the bug was inherited from freebsd fdlibm, the proper fix
is to use uint32_t for all bit hacks, but that requires more intrusive
changes.)
reported by Daniel Sabogal
| Szabolcs Nagy | 1 | -2/+2 |
| 2016-10-20 | update icmphdr struct following linux v4.8•••add union field that is used in the kernel for SIT/GRE tunneling ICMPv4
messages. see linux commit 20e1954fe238dbe5f8d3a979e593fe352bd703cf
| Szabolcs Nagy | 1 | -0/+1 |
| 2016-10-20 | add TCP_REPAIR_WINDOW to netinet/tcp.h from linux v4.8•••another kernel internal state exposure for checkpoint-restore.
see linux commit b1ed4c4fa9a5ccf325184fd90edc50978ef6e33a
| Szabolcs Nagy | 1 | -0/+9 |
| 2016-10-20 | add bits/hwcap.h and include it in sys/auxv.h•••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.
| Szabolcs Nagy | 10 | -0/+138 |
| 2016-10-20 | elf.h: update EM_ elf machine defines and add R_BPF_ defines•••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.
| Szabolcs Nagy | 1 | -1/+101 |
| 2016-10-20 | add ETH_P_NCSI to netinet/if_ether.h from linux v4.8•••see linux commit 6389eaa7fa9c3ee6c7d39f6087b86660d17236ac
| Szabolcs Nagy | 1 | -0/+1 |
| 2016-10-20 | add sh syscall numbers from linux v4.8•••sh was updated in linux commit 74bdaa611fa69368fb4032ad437af073d31116bd
to have numbers for new syscalls.
| Szabolcs Nagy | 1 | -0/+14 |
| 2016-10-20 | fix preadv2 and pwritev2 syscall numbers on x32 for linux v4.8•••the numbers were wrong in musl, but they were also wrong in the kernel
and got fixed in v4.8 commit 3ebfd81f7fb3e81a754e37283b7f38c62244641a
| Szabolcs Nagy | 1 | -2/+2 |
| 2016-10-20 | use dynamic buffer for getmntent•••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>
| Natanael Copa | 1 | -4/+13 |
| 2016-10-20 | fix integer overflows and uncaught EOVERFLOW in printf core•••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.
| Rich Felker | 2 | -46/+89 |
| 2016-10-19 | fix integer overflow in float printf needed-precision computation•••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.
| Rich Felker | 1 | -1/+1 |
| 2016-10-06 | fix regexec with haystack strings longer than INT_MAX•••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.
| Rich Felker | 1 | -26/+28 |
| 2016-10-06 | fix missing integer overflow checks in regexec buffer size computations•••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.
| Rich Felker | 1 | -5/+18 |
| 2016-10-06 | fix strftime %y for negative tm_year | Szabolcs Nagy | 1 | -0/+1 |
| 2016-09-24 | fix getservby*_r result pointer value on error•••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.
| Daniel Sabogal | 2 | -0/+3 |
| 2016-09-24 | remove dead case in gethostbyname2_r•••this case statement was accidently left behind when this function
was refactored in commit e8f39ca4898237cf71657500f0b11534c47a0521.
| Daniel Sabogal | 1 | -2/+0 |
| 2016-09-19 | fix undefined behavior in sched.h cpu_set_t usage•••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 *.
| Rich Felker | 1 | -3/+3 |
| 2016-09-18 | simplify/refactor fflush and make fflush_unlocked an alias for fflush•••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).
| Rich Felker | 1 | -30/+23 |
| 2016-09-16 | add missing *_unlocked and wcsftime_l prototypes to wchar.h•••these functions had been implemented, but prototypes were not made available
| Daniel Sabogal | 1 | -0/+15 |
| 2016-09-16 | fix if_indextoname error case•••posix requires errno to be set to ENXIO if the interface does not exist.
linux returns ENODEV instead so we handle this.
| Daniel Sabogal | 1 | -1/+6 |
| 2016-09-16 | fix ifru_data and ifcu_buf types in net/if.h•••glibc, freebsd, and openbsd use character pointers (caddr_t) for
these fields. only linux uses void pointer for the ifru_data type.
| Daniel Sabogal | 1 | -2/+2 |
| 2016-09-16 | fix printf regression with alt-form octal, zero flag, and field width•••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.
| Rich Felker | 1 | -1/+1 |
| 2016-08-30 | restore _Noreturn to __assert_fail•••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.
| Rich Felker | 2 | -2/+2 |
| 2016-08-30 | getdtablesize: fix returning hard instead of soft rlimit•••This makes the result consistent with sysconf(_SC_OPEN_MAX).
| Olivier Brunel | 1 | -1/+1 |
| 2016-08-30 | fix FFSYNC by changing it to O_SYNC•••O_FSYNC was never defined and is legacy/wrong, nothing seems to use it.
| Duncan Overbruck | 1 | -1/+1 |
| 2016-08-30 | configure: handle mipsisa64* triplet as a mips64 target•••the gnu config.sub script recognizes several mipsisa64* cpu types
that musl supports as mips64 targets.
| Szabolcs Nagy | 1 | -1/+1 |
| 2016-08-30 | math: fix 128bit long double inverse trigonometric functions•••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.)
| Szabolcs Nagy | 1 | -1/+1 |
| 2016-08-30 | verify that ttyname refers to the same file as the fd•••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.
| Szabolcs Nagy | 1 | -4/+11 |
| 2016-08-30 | microblaze: add syscall numbers from linux v4.7•••userfaultfd, membarrier and mlock2 syscalls got wired up in linux
commit fbce3befd60d40639bf3c6b60f7477b2f988f92d
| Szabolcs Nagy | 1 | -0/+3 |
| 2016-08-30 | add SS_AUTODISARM sigaltstack ss_flags from linux v4.7 to signal.h•••only matters if swapcontext is used in a signal handler running on an
altstack, new in linux commit 2a74213838104a41588d86fd5e8d344972891ace
| Szabolcs Nagy | 1 | -0/+2 |
| 2016-08-30 | add UDP_ENCAP_GTP0, UDP_ENCAP_GTP1U from linux v4.7 to netinet/udp.h•••for GPRS tunneling protocol, new in linux commit
459aa660eb1d8ce67080da1983bb81d716aa5a69
| Szabolcs Nagy | 1 | -0/+2 |
| 2016-08-30 | add PF_QIPCRTR, AF_QIPCRTR from linux v4.7 to sys/socket.h•••macros for qualcom ip router protocol, new in linux commit
bdabad3e363d825ddf9679dd431cca0b2c30f881
| Szabolcs Nagy | 1 | -1/+3 |
| 2016-08-11 | fix pread/pwrite syscall calling convention on sh•••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.
| Rich Felker | 4 | -2/+7 |
| 2016-07-13 | revert unrelated change that slipped into last commit | Rich Felker | 1 | -1/+1 |
| 2016-07-13 | fix regression in tcsetattr on all mips archs•••revert commit 8c316e9e49d37ad92c2e7493e16166a2afca419f. it was wrong
and does not match how the kernel API works.
| Rich Felker | 4 | -10/+10 |
| 2016-07-07 | fix asctime day/month names not to vary by locale•••the FIXME comment here was overlooked at the time locale support was
added.
| Rich Felker | 1 | -5/+4 |
| 2016-07-06 | remove obsolete and unused gethostbyaddr implementation•••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.
| Rich Felker | 1 | -52/+0 |
| 2016-07-06 | remove obsolete gitignore rules•••Since commit 2f853dd6b9a95d5b13ee8f9df762125e0588df5d, all generated
headers are generated under the obj directory, which is already ignored.
| Bobby Bingham | 1 | -2/+0 |
| 2016-07-06 | remove or1k version of sem.h•••It's identical to the generic version, after evaluating the endian
preprocessor checks in the generic version.
| Bobby Bingham | 1 | -11/+0 |
| 2016-07-05 | release 1.1.15 | Rich Felker | 2 | -1/+40 |
