aboutsummaryrefslogtreecommitdiffstats
path: root/toolchain/glibc
Commit message (Collapse)AuthorAgeFilesLines
* glibc: update to latest 2.32 commit (BZ# 26224)Hans Dedecker2020-12-051-2/+2
| | | | | | | | 050022910b iconv: Accept redundant shift sequences in IBM1364 [BZ #26224] ac0a6929c5 sh: Add sh4 fpu Implies folder 3ea24955bf struct _Unwind_Exception alignment should not depend on compiler flags Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* glibc: update to latest 2.32 commit (BZ #25399)Hans Dedecker2020-11-121-2/+2
| | | | | | | | | | | | 5c36293f06 resolv: Serialize processing in resolv/tst-resolv-txnid-collision 2dfa659a66 resolv: Handle transaction ID collisions in parallel queries (bug 26600) 05c025abca support: Provide a way to clear the RA bit in DNS server responses f688bcd83d support: Provide a way to reorder responses within the DNS test server eba0ce6058 Remove __warndecl 5337b2af4b Remove __warn_memset_zero_len [BZ #25399] c6e794640c aarch64: Add unwind information to _start (bug 26853) Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* glibc: update to latest stable version 2.32Hans Dedecker2020-11-073-80/+81
| | | | | | | | refresh patches : 050-Revert-Disallow-use-of-DES-encryption-functions-in-n.patch 00-fix_cross_rpcgen.patch Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* glibc: update to latest 2.31 commitHans Dedecker2020-10-201-2/+2
| | | | | | | | | | | 4bc9918c99 AArch64: Use __memcpy_simd on Neoverse N2/V1 4722d1fb9d [AArch64] Improve integer memcpy bea507a3f5 AArch64: Rename IS_ARES to IS_NEOVERSE_N1 d0a5b76902 AArch64: Improve backwards memmove performance 24a30c5959 AArch64: Add optimized Q-register memcpy 88db98fa6e AArch64: Align ENTRY to a cacheline Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* glibc: update to latest 2.31 commit [BZ #26383]Hans Dedecker2020-10-121-2/+2
| | | | | | 32965a46ce intl: Handle translation output codesets with suffixes [BZ #26383] Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* glibc: update to latest 2.31 commit [BZ #19519 BZ #26332 BZ #26248]Hans Dedecker2020-08-061-2/+2
| | | | | | | | | | 6fdf971c9d Add NEWS entry for CVE-2016-10228 (bug 19519) 70d585151c Rewrite iconv option parsing [BZ #19519] 1c8efe848b powerpc: Fix incorrect cache line size load in memset (bug 26332) 7611339a9b nptl: Zero-extend arguments to SETXID syscalls [BZ #26248] 21b760cc2f Disable warnings due to deprecated libselinux symbols used by nss and nscd Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* toolchain: add PKG_RELEASE if local filesPaul Spooren2020-07-291-1/+2
| | | | | | | | | | | | | | | | | | | The toolchain packages partly contain local code like patches and configuration files. These files are not tracked via PKG_VERSION as this variable only covers the upstream package version. To allow versioning of the buildsystem, this commit adds PKG_RELEASE:=1 to all toolchain packages with local files. Whenever a local file is changed the release must be increased. This does not touch binutils and gcc for now, as these provide multiple versions within one package. Also update the copyright of touched files to 2020. Signed-off-by: Paul Spooren <mail@aparcar.org> [exclude binutils/gcc from patch, adjust commit title/message] Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
* glibc: fix memcpy and memmove for negative length [BZ #25620]Hans Dedecker2020-07-211-2/+2
| | | | | | | | 6f3459f985 Add NEWS entry for CVE-2020-6096 (bug 25620) 64246fccaf arm: CVE-2020-6096: Fix multiarch memcpy for negative length [BZ #25620] 9bbd2b6172 arm: CVE-2020-6096: fix memcpy and memmove for negative length [BZ #25620] Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* glibc: fix avx2 strncmp offset compare condition check [BZ #25933]Hans Dedecker2020-07-131-2/+2
| | | | | | | 4e8a33a959 NEWS: Mention BZ 25933 fix fd15ba932d Fix avx2 strncmp offset compare condition check [BZ #25933 Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* toolchain: remove gcc libssp and use libc variantIan Cooper2020-06-171-1/+2
| | | | | | | | | | | | | | | Removes the standalone implementation of stack smashing protection in gcc's libssp in favour of the native implementation available in glibc and uclibc. Musl libc already uses its native ssp, so this patch does not affect musl-based toolchains. Stack smashing protection configuration options are now uniform across all supported libc variants. This also makes kernel-level stack smashing protection available for x86_64 and i386 builds using non-musl libc. Signed-off-by: Ian Cooper <iancooper@hotmail.com>
* glibc: update to latest 2.31 commit (BZ #25976, BZ #25824)Hans Dedecker2020-05-261-2/+2
| | | | | | | 3a44844c97 nss_compat: internal_end*ent may clobber errno, hiding ERANGE [BZ #25976] c839175267 aarch64: fix strcpy and strnlen for big-endian [BZ #25824] Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* glibc: update to latest 2.31 commitHans Dedecker2020-05-131-2/+2
| | | | | | | | | | | | | | | 1094741224 aarch64: Accept PLT calls to __getauxval within libc.so a98b8b221c NEWS: Mention fixes for BZ 25810/25896/25902/25966 4c833bbebe x86-64: Use RDX_LP on __x86_shared_non_temporal_threshold [BZ #25966] 3b9ceb3320 NEWS: Mention bug 25639 fixed in 2.31 branch bb44fe7711 oc_FR locale: Fix spelling of April (bug 25639) f2ac792047 oc_FR locale: Fix spelling of Thursday (bug 25639) 18fdba553d Add a C wrapper for prctl [BZ #25896] 7c9e054afd powerpc: Rename argN to _argN in LOADARGS_N [BZ #25902] 9c5ae39a64 Add C wrappers for process_vm_readv/process_vm_writev [BZ #25810] 63c3696a4a Mark unsigned long arguments with U in more syscalls [BZ #25810] Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* toolchain: glibc: Define minimum support kernel version as 4.14Hauke Mehrtens2020-04-181-1/+2
| | | | | | | This will compile glibc in a way that it will only support kernel 4.14 and later. Compatibility code for older kernel versions will be removed. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
* toolchain: glibc: Update glibc to version 2.31Hauke Mehrtens2020-04-184-30/+690
| | | | | | | | | | | | | | | This updates glibc to the most recent version 2.31. 001-regex-read-overrun.patch was a backport from a more recent version and is integrated in glibc 2.31. 050-Revert-Disallow-use-of-DES-encryption-functions-in-n.patch is needed to add the DES crypto functions back again. They were removed in glibc 2.28, but we still use them in ppp. musl lib also provides these DES crypto functions. Without them we would have to link ppp against openssl or an other crypto library. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
* glibc: update to latest 2.27 commit (BZ #2503, BZ #2504)Hans Dedecker2019-12-111-2/+2
| | | | | | | | bef0b1cb31 libio: Disable vtable validation for pre-2.1 interposed handles [BZ #25203] 4d5cfeb510 rtld: Check __libc_enable_secure before honoring LD_PREFER_MAP_32BIT_EXEC (CVE-2019-19126) [BZ #25204] 92f04eedb5 mips: Force RWX stack for hard-float builds that can run on pre-4.8 kernels Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* glibc: backport fix for regexec buffer read overrunAlin Nastac2019-11-301-0/+26
| | | | | | | | | | | | | | | | | | | Problem found by AddressSanitizer[1]: Latest `grep` (git commit 1019e6e) compiled with asan may cause a heap-buffer-overflow when `-i` is specified. ./grep -i '\(\(\)*.\)*\(\)\(\)\1' /bin/chvt ================================================================= ==16206==ERROR: AddressSanitizer: heap-buffer-overflow on address 1. https://debbugs.gnu.org/34140 Ref: https://sourceware.org/bugzilla/show_bug.cgi?id=24114 Signed-off-by: Alin Nastac <alin.nastac@gmail.com> [commit title and description facelift] Signed-off-by: Petr Štetiar <ynezz@true.cz>
* glibc: update to latest 2.27 commit (BZ#23637)Hans Dedecker2019-09-171-2/+2
| | | | | | | | | | | | 5b4f7382af Add undef to fix test failure. 9456483fb2 Improve performance of memmem 373f8b06a3 Improve performance of strstr 4ec1b9e913 Fix strstr bug with huge needles (bug 23637) ecd6271ed8 Speedup first memmem match bba6b9288f Simplify and speedup strstr/strcasestr first match 7a4da6ef7a Improve strstr performance Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* glibc: update to latest 2.27 commit (BZ #24228, BZ #24744, BZ #24699)Hans Dedecker2019-09-081-2/+2
| | | | | | | | | | | | | | | | | | | | | | 5f0d2e0491 [AArch64] Add ifunc support for Ares e6b7252040 aarch64,falkor: Use vector registers for memcpy c74b884f70 aarch64,falkor: Ignore prefetcher tagging for smaller copies 0fc5934ebd aarch64/strncmp: Use lsr instead of mov+lsr e0a0bd3acc aarch64/strncmp: Unbreak builds with old binutils 638caf3000 aarch64: Improve strncmp for mutually misaligned inputs d5f45a29ff aarch64/strcmp: fix misaligned loop jump target 7f690fafad aarch64: Improve strcmp unaligned performance 40df047b3b aarch64: Fix branch target to loop16 062139f233 aarch64: Optimized memcmp for medium to large sizes f3e2add213 aarch64: Use the L() macro for labels in memcmp 22bd3ab40e posix: Fix large mmap64 offset for mips64n32 (BZ#24699) bdd16894aa aarch64: handle STO_AARCH64_VARIANT_PCS 0b48caab9a aarch64: add STO_AARCH64_VARIANT_PCS and DT_AARCH64_VARIANT_PCS 949da7f2fd io: Remove copy_file_range emulation [BZ #24744] f056ac8363 libio: do not attempt to free wide buffers of legacy streams [BZ #24228] 5f90e009b1 NEWS: add entries for bugs 22964, 24180, and 24531 Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* glibc: update to latest 2.27 commit (BZ #24531)Hans Dedecker2019-05-231-2/+2
| | | | | | 54ba8bcd423 Fix tcache count maximum (BZ #24531) Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* glibc: update to latest 2.27 commitHans Dedecker2019-05-161-2/+2
| | | | | | f9c3c12f336 Fix crash in _IO_wfile_sync (bug 20568) Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* glibc: update to latest 2.27 commit (BZ #18035)Hans Dedecker2019-04-291-2/+2
| | | | | | 1961e5c7296 elf: Fix pldd (BZ#18035) Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* glibc: update to latest 2.27 commit [BZ #22964]Hans Dedecker2019-04-081-2/+2
| | | | | | de9d4aa353 ja_JP locale: Add entry for the new Japanese era [BZ #22964] Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* glibc: update to latest 2.27 commitHans Dedecker2019-03-221-2/+2
| | | | | | 1ab314d8d3 S390: Mark vx and vxe as important hwcap. Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* glibc: update to latest 2.27 commit [BZ #24180]Hans Dedecker2019-02-091-2/+2
| | | | | | 9f44fa22cb Add compiler barriers around modifications of the robust mutex list for pthread_mutex_trylock. [BZ #24180] Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* glibc: update to latest 2.27 commit (BZ #24155,BZ #24097)Hans Dedecker2019-02-041-2/+2
| | | | | | | | | | | | | | 2ebadb6451 x86-64 memcmp: Use unsigned Jcc instructions on size [BZ #24155] 3a5ae8db68 x86-64 strnlen/wcsnlen: Properly handle the length parameter [BZ #24097] 2c016ffa24 x86-64 strncpy: Properly handle the length parameter [BZ #24097] d8457edece x86-64 strncmp family: Properly handle the length parameter [BZ #24097] 55f8812858 x86-64 memset/wmemset: Properly handle the length parameter [BZ #24097] efc3714845 x86-64 memrchr: Properly handle the length parameter [BZ #24097] a4690969ed x86-64 memcpy: Properly handle the length parameter [BZ #24097] 6465327195 x86-64 memcmp/wmemcmp: Properly handle the length parameter [BZ #24097] 50117e00a1 x86-64 memchr/wmemchr: Properly handle the length parameter [BZ #24097] Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* glibc: update to latest 2.27 commit (BZ #24018)Hans Dedecker2019-01-071-2/+2
| | | | | | | 68c2930a56 NEWS: add entries for bugs 23275, 23861, and 23907 766e8fb932 intl: Do not return NULL on asprintf failure in gettext [BZ #24018] Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* glibc: update to latest 2.27 commit (BZ #24027, BZ #23927)Hans Dedecker2019-01-011-2/+2
| | | | | | | | | | | | | | | | 3981fc3453 malloc: Always call memcpy in _int_realloc [BZ #24027] f6d0e8c36f Fix rwlock stall with PREFER_WRITER_NONRECURSIVE_NP (bug 23861) 2794474c65 powerpc: Add missing CFI register information (bug #23614) d8ca7a0c71 Fix _dl_profile_fixup data-dependency issue (Bug 23690) f1e211096b inet/tst-if_index-long: New test case for CVE-2018-19591 [BZ #23927] 4e9f34e54f support: Implement <support/descriptors.h> to track file descriptors e75481a7a7 support: Close original descriptors in support_capture_subprocess 0f79dc0be3 support_quote_string: Do not use str parameter name 6b2dd53aa0 support: Implement support_quote_string 50477165b9 malloc: Add another test for tcache double free check. 4b246928bd malloc: tcache double free check Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* glibc: update to latest 2.27 commit (BZ #23927)Hans Dedecker2018-12-141-2/+2
| | | | | | | | | | | | | | | f6d0e8c36f Fix rwlock stall with PREFER_WRITER_NONRECURSIVE_NP (bug 23861) 2794474c65 powerpc: Add missing CFI register information (bug #23614) d8ca7a0c71 Fix _dl_profile_fixup data-dependency issue (Bug 23690) f1e211096b inet/tst-if_index-long: New test case for CVE-2018-19591 [BZ #23927] 4e9f34e54f support: Implement <support/descriptors.h> to track file descriptors e75481a7a7 support: Close original descriptors in support_capture_subprocess 0f79dc0be3 support_quote_string: Do not use str parameter name 6b2dd53aa0 support: Implement support_quote_string 50477165b9 malloc: Add another test for tcache double free check. 4b246928bd malloc: tcache double free check Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* glibc: update to latest 2.27 commit (BZ #23927)Hans Dedecker2018-12-061-2/+2
| | | | | | 9f433fc791 CVE-2018-19591: if_nametoindex: Fix descriptor for overlong name [BZ #23927] Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* glibc: update to latest 2.27 commitHans Dedecker2018-11-221-2/+2
| | | | | | | 1517dfb8aa Add an additional test to resolv/tst-resolv-network.c 1050634904 libanl: properly cleanup if first helper thread creation failed (bug 22927) Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* glibc: update to latest 2.27 commit (BZ#23709,BZ#23822)Hans Dedecker2018-11-051-2/+2
| | | | | | | | d8eee5ef55 x86: Fix Haswell CPU string flags (BZ#23709) 5cd5309d91 i64: fix missing exp2f, log2f and powf symbols in libm.a [BZ #23822] 1759ea197b conform: XFAIL siginfo_t si_band test on sparc64 Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* glibc: update to latest 2.27 commit (BZ #23562, BZ #23275)Hans Dedecker2018-10-231-2/+2
| | | | | | | 77b4b8231e signal: Use correct type for si_band in siginfo_t [BZ #23562] 5bdb6897fc Fix race in pthread_mutex_lock while promoting to PTHREAD_MUTEX_ELISION_NP [BZ #23275] Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* toolchain/glibc: update to 2.27+Hans Dedecker2018-10-162-4/+4
| | | | Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* toolchain/glibc: update to latest 2.26 commitHans Dedecker2018-09-131-2/+2
| | | | | | | c5c90b480e Fix segfault in maybe_script_execute. 174709d879 pthread_cond_broadcast: Fix waiters-after-spinning case [BZ #23538] Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* toolchain/glibc: update to latest 2.26 commitHans Dedecker2018-08-071-2/+2
| | | | | | | | | | | | | c9570bd2f5 x86: Populate COMMON_CPUID_INDEX_80000001 for Intel CPUs [BZ #23459] 86e0996b1a x86: Correct index_cpu_LZCNT [BZ #23456] cf6deb084b conform/conformtest.pl: Escape literal braces in regular expressions b12bed3e06 stdio-common/tst-printf.c: Remove part under a non-free license [BZ #23363] 20dc7a909a libio: Add tst-vtables, tst-vtables-interposed 4b10e69b1f Synchronize support/ infrastructure with master 762e9d63d5 NEWS: Reorder out-of-order bugs 2781bd5a86 libio: Disable vtable validation in case of interposition [BZ #23313] Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* toolchain/glibc: update to latest 2.26 commitHans Dedecker2018-07-021-2/+2
| | | | | | | | | 74d16a57a3 Check length of ifname before copying it into to ifreq structure. 3aaf8bda00 getifaddrs: Don't return ifa entries with NULL names [BZ #21812] f958b45d52 Use _STRUCT_TIMESPEC as guard in <bits/types/struct_timespec.h> [BZ #23349] 81b994bd83 Fix parameter type in C++ version of iseqsig (bug 23171) Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* toolchain/glibc: update to latest 2.26 commitHans Dedecker2018-06-113-4/+4
| | | | | | | | 7b52c8ae05 libio: Avoid _allocate_buffer, _free_buffer function pointers [BZ #23236] Refresh patches Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* toolchain/glibc: update to latest 2.26 commitHans Dedecker2018-05-301-2/+2
| | | | | | | | | 4df8479e6b Add NEWS entry for CVE-2018-11236 a5bc5ec967 Add references to CVE-2018-11236, CVE-2017-18269 58ad5f8a64 Add a test case for [BZ #23196] 6b4362f2cb Don't write beyond destination in __mempcpy_avx512_no_vzeroupper (bug 23196) Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* toolchain/glibc: update to latest 2.26 commitHans Dedecker2018-05-231-2/+2
| | | | | | | | | | | | | | | af7519f7b3 Fix path length overflow in realpath [BZ #22786] 365722ace6 Fix stack overflow with huge PT_NOTE segment [BZ #20419] be056fae3b Fix blocking pthread_join. [BZ #23137] 02f0dd83a4 Fix signed integer overflow in random_r (bug 17343). 3241353ab2 i386: Fix i386 sigaction sa_restorer initialization (BZ#21269) 677e6d13e0 [BZ #22342] Fix netgroup cache keys. 71d339cb86 Fix i386 memmove issue (bug 22644). 31e2d15b80 Fix crash in resolver on memory allocation failure (bug 23005) 1f7c4748d6 getlogin_r: return early when linux sentinel value is set 7e7a5f0bcd resolv: Fully initialize struct mmsghdr in send_dg [BZ #23037] Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* glibc: switch from git to httpsJohann Neuhauser2018-04-291-1/+1
| | | | | | This is needed for working behind a http proxy. Signed-off-by: Johann Neuhauser <jneuhauser@dh-electronics.de>
* toolchain/glibc: unset LD_LIBRARY_PATHHyeonsik Song2018-04-191-0/+1
| | | | | | Fix build error when use glibc Signed-off-by: Hyeonsik Song <blogcin@naver.com>
* glibc: update glibc to 2.26+ and switch to download from gitHans Dedecker2018-03-131-4/+6
| | | | | | | | | | | | | | Switch glibc to 2.26+ [0] and download the sources from git which will it make easier to update glibc in the future. For an overview of the fixed bugs and CVE related fixes in 2.26+ see the NEWS file [1] [0] https://sourceware.org/git/?p=glibc.git;a=commit;h=d300041c533a3d837c9f37a099bcc95466860e98 [1] https://sourceware.org/git/?p=glibc.git;a=blob;f=NEWS;h=410f0d163145c1549fb73fdd96568f585b5bf62f;hb=refs/heads/release/2.26/master Signed-off-by: Xinxing Hu <xinxing.huchn@gmail.com> Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* glibc: fix applying of patchesHans Dedecker2018-03-131-0/+1
| | | | | | | | | | Commit f4d9d7a removed support for version specific patches; but it also broke applying of patches in the patches glibc dir. Fix the issue by setting PATCH_DIR to $(PATH_PREFIX)/patches similar as musl/common.mk. Signed-off-by: Xinxing Hu <xinxing.huchn@gmail.com> Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* toolchain/glibc: Update to 2.26Daniel Engberg2017-10-151-2/+2
| | | | | | Update glibc to 2.26 Signed-off-by: Daniel Engberg <daniel.engberg.lists@pyret.net>
* glibc: update to version 2.25Felix Fietkau2017-02-112-12/+7
| | | | Signed-off-by: Felix Fietkau <nbd@nbd.name>
* glibc: override default rpath to /lib:/usr/libFelix Fietkau2017-02-111-0/+1
| | | | Signed-off-by: Felix Fietkau <nbd@nbd.name>
* glibc: use default PATCH_DIRFelix Fietkau2017-02-113-2/+0
| | | | | | | Version configuration is gone, so version specific patch directories are not necessary either. Signed-off-by: Felix Fietkau <nbd@nbd.name>
* build: remove libc version config codeFelix Fietkau2017-02-113-32/+3
| | | | | | We only support one version per libc type Signed-off-by: Felix Fietkau <nbd@nbd.name>
* treewide: clean up download hashesFelix Fietkau2016-12-161-2/+2
| | | | | | Replace *MD5SUM with *HASH, replace MD5 hashes with SHA256 Signed-off-by: Felix Fietkau <nbd@nbd.name>
* toolchain: Rework external toolchain libc selectionFlorian Fainelli2016-09-281-1/+1
| | | | | | | | | | | | | | | | Make it a choice menu which offers the 3 C libraries we know about: glibc, uClibc and musl. While at it, make it possible for the external toolchain libc to select USE_GLIBC, USE_UCLIBC or USE_MUSL which is used by several packages to conditionally include specific CFLAGS (e.g: iproute2). Because USE_GLIBC et al. can now be selected by external toolchains, we need to restrict the per-libc menus to check on !EXTERNAL_TOOLCHAIN. While at it, make musl the default C library for external toolchain to match the internal toolchain. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>