summaryrefslogtreecommitdiff
path: root/libc
AgeCommit message (Collapse)Author
2018-11-01Add support for Thumb-only processors.Christophe Lyon
* ldso/ldso/arm/aeabi_read_tp.S: Add Thumb version. * ldso/ldso/arm/dl-startup.h: Do not force ARM encoding, adjust for Thumb. * ldso/ldso/arm/resolve.S: Force Thumb encoding on Thumb-only processors. * libc/sysdeps/linux/arm/crt1.S: Do not force ARM encoding, adjust for Thumb. Signed-off-by: Mickaël Guêné <mickael.guene@st.com> Signed-off-by: Christophe Lyon <christophe.lyon@st.com>
2018-11-01time.h: Add CLOCK_TAIPetr Vorel
Added in kernel in kernel 3.10 in 1ff3c9677bff ("timekeeping: Add CLOCK_TAI clockid") NOTE: CLOCK_SGI_CYCLE was not added, as it has been lately removed. Signed-off-by: Petr Vorel <petr.vorel@gmail.com>
2018-11-01mkostemp64: clear flags, as mkostemp doesCarlos Santos
This should have been made in commit 9649721950 but was forgotten. Signed-off-by: Carlos Santos <casantos@datacom.com.br>
2018-10-20do not expose recvmmsg/sendmmsg for unsupported kernelsWaldemar Brodkorb
2018-09-21bugfix renameat2 wrong implement.Guo Ren
Signed-off-by: Guo Ren <ren_guo@c-sky.com>
2018-09-21wordexp: Fix the usage of the internal _itoa functionSegev Finer
The original from glibc received the end of the buffer and worked backwards. Ours needs the beginning of the buffer. Signed-off-by: Segev Finer <segev208@gmail.com>
2018-08-16sched_setaffinity: use the same style with glibc'sGuo Ren
Call getpid() in INTERNAL_SYSCALL will break the argument regs, because gcc couldn't save destoryed regs for system call asm. Ref to glibc, we could just remove all the check code. Signed-off-by: Guo Ren <ren_guo@c-sky.com>
2018-08-10mbtowc: Fix non compliant behavior for end of stringChristophe Lyon
Match glibc behavior. * libc/stdlib/stdlib.c (mbtowc): Fix end of string behavior. Signed-off-by: Mickaël Guêné <mickael.guene@st.com> Signed-off-by: Christophe Lyon <christophe.lyon@st.com>
2018-08-10nptl threads: Fix bug in using a weak variable.Christophe Lyon
In case __nptl_nthreads is not defined in the final binary then avoid dereferencing the address since it's null. Anyway this means there is no other thread and so we must exit. * libc/misc/internals/__uClibc_main.c (__uClibc_main): Handle case where &__nptl_nthreads is null. Signed-off-by: Mickaël Guêné <mickael.guene@st.com> Signed-off-by: Christophe Lyon <christophe.lyon@st.com>
2018-08-10nptl: Use vfork on MMU-less for system()Christophe Lyon
* libc/stdlib/system.c (FORK): Map to vfork if __ARCH_USE_MMU__ is defined. Signed-off-by: Mickaël Guêné <mickael.guene@st.com> Signed-off-by: Christophe Lyon <christophe.lyon@st.com>
2018-08-10arm/clone.S: Fix threading supportChristophe Lyon
Change clone.S so that in FDPIC case we take into account the fact that we are given a function descriptor. * libc/sysdeps/linux/arm/clone.S (__clone): Support __FDPIC__. Signed-off-by: Mickaël Guêné <mickael.guene@st.com> Signed-off-by: Christophe Lyon <christophe.lyon@st.com>
2018-08-10Allow to generate PIE 'static' binaryChristophe Lyon
* libc/misc/internals/__uClibc_main.c (funcdesc_value): New. (fdpic_init_array_jump): New. (__uClibc_fini): Support __FDPIC__. (__uClibc_main): Likewise. Signed-off-by: Mickaël Guêné <mickael.guene@st.com> Signed-off-by: Christophe Lyon <christophe.lyon@st.com>
2018-08-10Add runtime support needed for C++ exceptionsChristophe Lyon
Implements __gnu_Unwind_Find_got(), which is called from libgcc while unwinding. * libc/sysdeps/linux/arm/Makefile.arch (CSRC): Add find._got.c. * libc/sysdeps/linux/arm/find_got.c: New file. Signed-off-by: Mickaël Guêné <mickael.guene@st.com> Signed-off-by: Christophe Lyon <christophe.lyon@st.com>
2018-08-10Add application startup code for FDPICChristophe Lyon
* libc/sysdeps/linux/arm/crt1.S: Define _start for __FDPIC__. Signed-off-by: Mickaël Guêné <mickael.guene@st.com> Signed-off-by: Christophe Lyon <christophe.lyon@st.com>
2018-08-10rtld: Add FDPIC code for armChristophe Lyon
Add FDPIC dynamic relocations support, similar to what other FDPIC targets do. Lazy binding is implemented in a folllow-up patch. Disable the SEND* macros because they involve relocations to access constant strings that are unsupported by the existing arm version. Define DL_START, START, ARCH_NEEDS_BOOTSTRAP_RELOCS, DL_CHECK_LIB_TYPE similarly to what other FDPIC targets do. Define raise() because _dl_find_hash references __aeabi_uidivmod, which uses __aeabi_idiv0 which in turn references raise. * include/elf.h (R_ARM_FUNCDESC): Define. (R_ARM_FUNCDESC_VALUE): Define. * ldso/include/dl-string.h (SEND_STDERR, SEND_ADDRESS_STDERR) (SEND_NUMBER_STDERR): Define empty for __FDPIC__. * ldso/ldso/arm/dl-inlines.h: New file. * ldso/ldso/arm/dl-startup.h (PERFORM_BOOTSTRAP_RELOC): Fix type of load_addr. Fix handling of R_ARM_RELATIVE, add support for R_ARM_FUNCDESC_VALUE. (DL_START, START): Define for __FDPIC__. (raise): Define. * ldso/ldso/arm/dl-sysdep.h (ARCH_NEEDS_BOOTSTRAP_RELOCS): Define. (DL_CHECK_LIB_TYPE): Define. (elf_machine_type_class): Take into account FDPIC related relocations. (elf_machine_load_address): Support __FDPIC__. (elf_machine_relative): Likewise. * ldso/ldso/arm/elfinterp.c (_dl_linux_resolver): Dummy support for __FDPIC__, implemented in a later patch. (_dl_do_reloc): Fix reloc_adr computation for __FDPIC__, fix handling of local symbols. Fix handling of R_ARM_RELATIVE, add support for R_ARM_FUNCDESC_VALUE, R_ARM_FUNCDESC. * ldso/ldso/arm/resolve.S: Make _dl_linux_resolve hidden. * ldso/ldso/fdpic/dl-inlines.h (htab_delete): Declare. * libc/sysdeps/linux/arm/bits/elf-fdpic.h: New file, similar to bfin's. * libc/sysdeps/linux/arm/crtreloc.c: Likewise. * libc/sysdeps/linux/arm/find_exidx.c (__dl_addr_in_loadaddr) Define. (find_exidx_callback): Support __FDPIC__. Signed-off-by: Mickaël Guêné <mickael.guene@st.com> Signed-off-by: Christophe Lyon <christophe.lyon@st.com>
2018-08-10rtld: Add #if defined (__FDPIC__)Christophe Lyon
Like for other FDPIC targets, add defined(__FDPIC__) where needed. * include/link.h: Include bits/elf-fdpic.h if __FDPIC__ is defined. (link_map): Use elf32_fdpic_loadaddr if __FDPIC__ is defined. (dl_phdr_info): Likewise. * ldso/include/dl-elf.h (__dl_parse_dynamic_info): Support __FDPIC__. * ldso/include/dl-hash.h (elf_resolve): Add funcdesc_ht field if __FDPIC__ is defined. * ldso/ldso/dl-hash.c (_dl_find_hash): Support __FDPIC__. * libc/misc/elf/dl-iterate-phdr.c (dl_iterate_phdr): Support __FDPIC__. Signed-off-by: Mickaël Guêné <mickael.guene@st.com> Signed-off-by: Christophe Lyon <christophe.lyon@st.com>
2018-06-10risc-v: initial 64 bit port, static only (no TLS/NPTL)Waldemar Brodkorb
Only a simple hello world is tested in qemu system emulation.
2018-04-17libdl: cleanup old inline changelogWaldemar Brodkorb
2018-04-17common/sendfile.c: bugfix can't support offset is NULLGuo Ren
In ltp testcase sendfile08.c, it use offset=NULL to test the api. PATCH V2: fixup the stupid missing check in the end. Sorry for lose test. See "man sendfile" and it really support offset is NULL. Signed-off-by: Guo Ren <ren_guo@c-sky.com>
2018-04-17Revert "common/sendfile.c: bugfix can't support offset is NULL"Waldemar Brodkorb
This reverts commit b00fd230ed0b49b9f23d829ad5d09859f34bb754.
2018-04-13lseek.c: bugfix ltp lseek01.cGuo Ren
Ref the implement from the glibc and high=0 seems so bad. Signed-off-by: Guo Ren <ren_guo@c-sky.com>
2018-04-13common/sendfile.c: bugfix can't support offset is NULLGuo Ren
In ltp testcase sendfile08.c, it use offset=NULL to test the api. See "man sendfile" and it really support offset is NULL. Signed-off-by: Guo Ren <ren_guo@c-sky.com>
2018-04-13or1k: add F_{DUPFD_CLOEXEC, SETPIPE_SZ, GETPIPE_SZ}Thomas Petazzoni
Those definitions exist on all other architectures, but were not present in or1k specific headers when or1k support was merged. On the kernel side, their support is completely architecture independent, so we just need those definitions to make those fcntl() calls available on or1k. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2018-04-02use __NR_newfstatat only for modern Linux architecturesWaldemar Brodkorb
Otherwise it breaks mips64 n64. Should be used for aarch64/tilegx only.
2018-03-22hppa: fix runtime issuesWaldemar Brodkorb
Sync clone()/vfork() with GNU C Library. Allow CFI and fix strsignal() / tcsetattr().
2018-03-15csky: support bsd-setjmp and bsd-_setjmp.Guo Ren
Signed-off-by: Guo Ren <ren_guo@c-sky.com>
2018-03-12tile: add basic support for tilegxWaldemar Brodkorb
This adds basic support for tile architecture. Only static binaries, no ld.so or threading support. Tested with qemu-tilegx only.
2018-03-09sparc32: Add nop before __startcontext to stop unwindingWaldemar Brodkorb
From glibc commit 9aa5c222b9e0409143410a02b6364a3b25dbf028 [BZ #22919]
2018-03-01add missing include to quieten compilerWaldemar Brodkorb
2018-02-26stat.h: fix issue with aarch64Waldemar Brodkorb
2018-02-17bits/socket.h: add missing definesWaldemar Brodkorb
Newer iproute2 package make use of some of defines. Sync missing defines with GNU C library.
2018-02-12uClibc-ng does not implement name_to_handle_atAlexey Neyman
... so don't declare it. Otherwise, eudev finds it declared and tries to link with it - and fails. Signed-off-by: Alexey Neyman <stilor@att.net>
2018-02-04mman: disable memfd_create declarationWaldemar Brodkorb
2018-02-03csky: bugfix ltp open12 failed.Guo Ren
Signed-off-by: Guo Ren <ren_guo@c-sky.com>
2018-02-03add libc version compatibilityWaldemar Brodkorb
2018-02-03bits/mman.h: consolidate header fileWaldemar Brodkorb
Sync with GNU C library and consolidate duplicate non architecture specific defines. MAP_UNINITIALIZED is only defined to 0x4000000 and used by the Linux kernel when CONFIG_MMAP_ALLOW_UNINITIALIZED is enabled. CONFIG_MMAP_ALLOW_UNINITIALIZED is only available for nommu. See Documentation/nommu-mmap.txt.
2018-01-31malloc: add glibc compat symbolsWaldemar Brodkorb
2018-01-31malloc: add malloc_usable_size()Waldemar Brodkorb
2018-01-31remove arc4random (rc4 based)Waldemar Brodkorb
OpenBSD arc4random is using chacha20 cipher algorithm for a long time. This copy is still based on deprecated rc4 cipher algorithm. We could either update the arc4random.c or drop it. Drop it. Users should better use libbsd when using arc4random interface. Musl/glibc does not have arc4random either.
2018-01-31aarch64/sys/ucontext.h: include bits/sigcontext.hBernd Kuhls
Fixes a buildroot build error with ffmpeg In file included from /home/bernd/buildroot/output/host/aarch64-buildroot-linux-uclibc/sysroot/usr/include/signal.h:329:0, from fftools/ffmpeg.h:26, from fftools/ffmpeg_opt.c:23: /home/bernd/buildroot/output/host/aarch64-buildroot-linux-uclibc/sysroot/usr/include/sys/ucontext.h:52:16: error: field 'uc_mcontext' has incomplete type mcontext_t uc_mcontext; ^~~~~~~~~~~ using this defconfig: BR2_aarch64=y BR2_PACKAGE_FFMPEG=y sys/ucontext.h for other archs already include bits/sigcontext.h, on aarch64 this is needed as well. Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
2018-01-21simplify and fix getcwdWaldemar Brodkorb
The fallback code is not used as all supported kernels have the syscall. Check if a absolute path is returned from syscall.
2018-01-15xtensa: fix strcmpMax Filippov
Loops with 'loop forever' annotation inside strcmp are actually meant to loop forever. Falling through the end of the first loop may result in equal strings being compared unequal, e.g.: #include <string.h> int main(void) { char a[4096] __attribute__((aligned(4))); char b[4096] __attribute__((aligned(4))); memset(a, ' ', 258 * 8); memset(b, ' ', 258 * 8); a[255 * 8] = 0; a[256 * 8] = 'a'; b[255 * 8] = 0; b[256 * 8] = 'b'; return !(strcmp(a, b) == 0); } Falling through the end of the second loop may result in unequal strings being compared as equal, e.g.: #include <string.h> int main(void) { char a[4096] __attribute__((aligned(4))); char b[4096] __attribute__((aligned(4))); memset(a, ' ', 514 * 6); memset(b, ' ', 514 * 6); a[514 * 6 + 0] = 'a'; a[514 * 6 + 1] = 0; b[514 * 6 + 0] = 'b'; b[514 * 6 + 1] = 0; return !(strcmp(a, b) != 0); } Use 0 as a loop counter to make 2^32 - 1 iterations which is enough to cover all addressable memory. While at it drop useless nop at the end of the first loop and use a11 for all loop counters. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2018-01-15rt: cleanup and allow to build for linuxthreadsWaldemar Brodkorb
It seems there is no real dependency to NPTL for these clock_* functions when UCLIBC_ADVANCED_REALTIME is enabled. No regressions found. Reported-by: Baruch Siach <baruch@tkos.co.il>
2018-01-15nds32: Add syscall macros for 5 and 6 parametersStafford Horne
This is to fix an error after switching to use generic syscalls. libc/sysdeps/linux/common/syscall.c: In function 'syscall': libc/sysdeps/linux/common/syscall.c:27:2: warning: implicit declaration of function 'internal_syscall_ncs6' [-Wimplicit-function-declaration] return INLINE_SYSCALL_NCS(sysnum, 6, arg1, arg2, arg3, arg4, arg5, arg6); ^ Defining these functions as described by Vincent Ren-Wei Chen <vincentc@andestech.com> Signed-off-by: Stafford Horne <shorne@gmail.com>
2018-01-15nds32: Use new common syscall() implementationStafford Horne
Traditionally nds32 has had a generic syscall implementation supporting varargs. During an audit it was found that this implementation seems to duplicate the new common implementation and is no longer needed. Signed-off-by: Stafford Horne <shorne@gmail.com>
2018-01-15or1k: Use new common syscall() implementationStafford Horne
Now that the common syscall implementation supports vararg calling conventions we can safely use it on OpenRISC. This saves a bit of code in the openrisc implementation. Signed-off-by: Stafford Horne <shorne@gmail.com>
2018-01-15syscall: Make common implementation match unistd.hStafford Horne
The definition of syscall() in unistd.h is with varargs. Traditionally the common implementation in uclibc has been with regular arguments. This patch updates that by using varargs. This has caused issues on architectures like or1k which have different calling conventions for varargs and regular arg parameters. The implementation here is based on an implementation from Joel Stanley <joel@jms.id.au>. There is a difference that I do not initialize the stack args with 0 as they are immediately overwritten by va_args. Signed-off-by: Stafford Horne <shorne@gmail.com>
2018-01-08csky: bugfix libc sync_file_range.c for csky.Guo Ren
Use __NR_sync_file_range2 for csky sync_file_range function. Signed-off-by: Guo Ren <ren_guo@c-sky.com>
2018-01-02remove COMPAT_ATEXITWaldemar Brodkorb
2017-12-31m68k: add NPTL/TLS supportWaldemar Brodkorb
Port over NPTL/TLS support from GNU C Library. In the first step only the slower syscall is used for TLS access. The uClibc-ng testsuite shows 79 errors, so their is room for bugfixes and improvements.
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-29 06:03:20 +0000