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2023-09-14fstat: add missing return value statement for the statx wrapping caseYann Sionneau
Add missing return value statement to fstat for the statx wrapping case. Signed-off-by: Yann Sionneau <ysionneau@kalray.eu>
2023-09-14fstatat64: define it as a wrapper of statx if the kernel does not support ↵Yann Sionneau
fstatat64 syscall Define fstatat64 as a wrapper of statx if the kernel does not support fstatat64 syscall This is the case for non-legacy architectures that don't define __ARCH_WANT_NEW_STAT in their linux arch/xxx/include/asm/unistd.h Signed-off-by: Yann Sionneau <ysionneau@kalray.eu>
2023-09-07daemon.c: make _fork_parent static inline againMax Filippov
The commit cf649082c7d4 ("remove forced gcc optimization") removed -O3 optimization specified in the code for the function _fork_parent, but at the same time it removed the 'static inline' part of the function definition. That change seems unintended and _fork_parent is not a part of the libc interface. Make it static inline again. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2023-08-14gitignorelordrasmus
2023-08-14vdso support for x86_64lordrasmus
2023-08-14gettimeofday() only include ldso.h if vdso support is activatedlordrasmus
2023-08-14c6x compile fix vdso supportlordrasmus
2023-08-14vdso support missing filelordrasmus
2023-08-14fix getauxval() on aarch64 gcc 11lordrasmus
2023-08-14fix file permissionslordrasmus
2023-08-14add vsdo supportlordrasmus
2023-08-12arm: add hwcap header fileWaldemar Brodkorb
2023-08-09fcntl.h: declare f_owner_ex for all architecturesWaldemar Brodkorb
2023-08-08aarch64: add hwcap header fileWaldemar Brodkorb
2023-08-06bump version for 1.0.44 releasev1.0.44Waldemar Brodkorb
2023-08-06getauxval: remove header for static buildsWaldemar Brodkorb
Fixes haveged compile issues in OpenADK and buildroot when a static toolchain is used.
2023-08-06powerpc: fix conflicting definitions with newer Linux kernelWaldemar Brodkorb
2023-08-03linuxthreads/signal: improve sigaction behaviorMax Filippov
Setting signal handler in the kernel and then updating sighandler[sig] results in a crash if a signal which handler is being changed from SIG_DFL to a non-default was pending. Improve the race a little and update the sighandler[sig] before the sigaction syscall. It doesn't eliminate the race entirely, but fixes this particular failing case. E.g. this fixes the 100% reproducible segfault in the busybox hush shell built with FEATURE_EDITING_WINCH on ssh client's terminal window resize, but in that case there's one more even bigger issue: busybox calls sigaction with both old and new signal pointers pointing to the same structure instance, as a result act->sa_handler after the sigaction syscall is not what the user requested, but the previous handler. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2023-08-02add missing wchar.h, fixes a compile error with openadkWaldemar Brodkorb
2023-07-30des.c: constify des tablesMax Filippov
DES tables take up a huge amount of space in the .bss and they aren't even variable. Generate constant tables and put them into des_tables.c and drop constants and code used to generate them from des.c This saves ~70KBytes of the .bss and ~3KBytes of the total library size: text data bss dec hex filename - 618508 25652 89400 733560 b3178 lib/libuClibc-1.0.42.so + 685664 25672 19488 730824 b26c8 lib/libuClibc-1.0.42.so Modified libc passes the DES validation suite from the uclibc-ng-test. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2023-07-14[PATCH] libc/sysdeps/linux/common/bits/wchar.h: resync with glibc, fix build ↵Waldemar Brodkorb
issue with gcc 12 The current definition of __WCHAR_MIN and __WCHAR_MAX are only correct when wchar_t is an int. This is not the case on ARM/AArch64 where wchar_t is an unsigned int, or some other architectures where wchar_t is a long. The current incorrect definition causes a build issue for example when building mpd, which uses boost, with gcc 12.x: In file included from /home/thomas/buildroot/aarch64/host/aarch64-buildroot-linux-uclibc/sysroot/usr/include/boost/integer.hpp:20, from /home/thomas/buildroot/aarch64/host/aarch64-buildroot-linux-uclibc/sysroot/usr/include/boost/crc.hpp:42, from ../src/storage/StorageState.cxx:43: /home/thomas/buildroot/aarch64/host/aarch64-buildroot-linux-uclibc/sysroot/usr/include/boost/integer_traits.hpp:105:69: error: narrowing conversion of ‘-2147483648’ from ‘int’ to ‘wchar_t’ [-Wnarrowing] 105 | public detail::integer_traits_base<wchar_t, WCHAR_MIN, WCHAR_MAX> | ^ This issue was fixed in glibc in 2013, see bug report https://sourceware.org/bugzilla/show_bug.cgi?id=15036, and upstream commit https://sourceware.org/git/?p=glibc.git;a=commit;h=052aff95782fefe9c63566471063e8b20836bfb8. Since the i386-specific definition of __WCHAR_MIN and __WCHAR_MAX was also removed at the same time in glibc, we do the same as part of this commit. Reported-by: Clément Ramirez <clement.ramirez@bootlin.com> With-some-useful-help-from: Paul Kocialkowski <paul.kocialkowski@bootlin.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2023-06-12Fix compilation error on noMMU/nothread systems with old compilersYann Sionneau
For instance with buildroot config sipeed_maix_bit_defconfig the pre-processor generates if (1) r = ({ long _sys_result; { register long int _a7 __asm__ ("a7"); register long _a3 __asm__ ("a3"); long _a3tmp; register long _a2 __asm__ ("a2"); long _a2tmp; register long _a1 __asm__ ("a1"); long _a1tmp; long _a0tmp; register long _a0 __asm__ ("a0"); _a0tmp = (long) (clock_id); _a0 = _a0tmp; _a1tmp = (long) (flags); _a1 = _a1tmp; _a2tmp = (long) (req); _a2 = _a2tmp; _a3tmp = (long) (rem); _a3 = _a3tmp; _a7 = (115); __asm__ volatile ( "scall\n\t" : "=r" (_a0) : "r"(_a7) , "r" (_a0), "r" (_a1), "r" (_a2), "r" (_a3) : "memory"); _sys_result = _a0; } _sys_result; }); else { int oldstate = LIBC_CANCEL_ASYNC (); r = ({ long _sys_result; { register long int _a7 __asm__ ("a7"); register long _a3 __asm__ ("a3"); long _a3tmp; register long _a2 __asm__ ("a2"); long _a2tmp; register long _a1 __asm__ ("a1"); long _a1tmp; long _a0tmp; register long _a0 __asm__ ("a0"); _a0tmp = (long) (clock_id); _a0 = _a0tmp; _a1tmp = (long) (flags); _a1 = _a1tmp; _a2tmp = (long) (req); _a2 = _a2tmp; _a3tmp = (long) (rem); _a3 = _a3tmp; _a7 = (115); __asm__ volatile ( "scall\n\t" : "=r" (_a0) : "r"(_a7) , "r" (_a0), "r" (_a1), "r" (_a2), "r" (_a3) : "memory"); _sys_result = _a0; } _sys_result; }) ; LIBC_CANCEL_RESET (oldstate); } And also the compiler issues these warnings: librt/clock_nanosleep.c: In function 'clock_nanosleep': librt/clock_nanosleep.c:43:22: warning: implicit declaration of function 'LIBC_CANCEL_ASYNC'; did you mean 'LIBC_CANCEL_HANDLED'? [-Wimplicit-function-declaration] 43 | int oldstate = LIBC_CANCEL_ASYNC (); | ^~~~~~~~~~~~~~~~~ | LIBC_CANCEL_HANDLED librt/clock_nanosleep.c:48:7: warning: implicit declaration of function 'LIBC_CANCEL_RESET'; did you mean 'LIBC_CANCEL_HANDLED'? [-Wimplicit-function-declaration] 48 | LIBC_CANCEL_RESET (oldstate); | ^~~~~~~~~~~~~~~~~ | LIBC_CANCEL_HANDLED So if the compiler is a bit picky and does not optimize the if (1) {} else {} it can fail to link with undefined symbols. This patch fixes this issue: no more warning. Btw, that's the solution that is already used in the following cancellation point files: * libc/sysdeps/linux/common/__syscall_fcntl.c * libc/sysdeps/linux/common/__syscall_fcntl64.c * libc/sysdeps/linux/common/ioctl.c * libc/sysdeps/linux/common/openat.c * libc/sysdeps/linux/common/open.c Signed-off-by: Yann Sionneau <yann@sionneau.net>
2023-06-12Revert "librt: avoid compilation error"Yann Sionneau
This reverts commit 08d46f1ce21e4ec51b2b1626beeaea6cbe7fdc6b. Signed-off-by: Yann Sionneau <yann@sionneau.net>
2023-05-10gettimeofday: fix static buildWaldemar Brodkorb
2023-04-05bump version for 1.0.43 releasev1.0.43Waldemar Brodkorb
2023-03-13Emulate 'futimesat' when __NR_futimesat is not available.Elliot Thomas
2023-02-03riscv64: fix linking with binutils 2.40Waldemar Brodkorb
See here for details: https://sourceware.org/bugzilla/show_bug.cgi?id=28509
2023-01-22Defined MAP_FIXED_NOREPLACElinted
Added definition for MAP_FIXED_NOREPLACE which was added in kernel 4.17 Signed-off-by: linted <linted@users.noreply.github.com>
2023-01-22Fix for CVE-2022-29503.linted
Changed linux thread's stack allocation mmap to use new MAP_FIXED_NOREPLACE flag on kernels >4.17. For older kernels, a check is added to see if requested address matches the address received. If the addresses don't match, an error is returned and thread creation is aborted. Signed-off-by: linted <linted@users.noreply.github.com>
2023-01-08Add lost includes. Fix add getauxval() implementation.Evgeniy Manachkin
Signed-off-by: Evgeniy Manachkin <sfstudio@wi-cat.ru>
2022-12-19gettimeofday() vdso supportramin
2022-12-19sycall macro for vdso supportramin
2022-12-19add getauxval() implementationramin
2022-12-07uclibc-ng: fix overflow warning when compiling string/strchr in ILP32 mode ↵Evgeniy Manachkin
on MIPS. Signed-off-by: Evgeniy Manachkin <sfstudio@wi-cat.ru>
2022-11-20RISC-V 32-bit supportustcymgu@gmail.com
Added 32-bit RISC-V support. I have managed to get 32-bit RISC-V No-MMU Linux running based on mainstream buildroot. It's nice to have uclibc support this 32-bit No-MMU target. There's no substantial code change except definations and config options. Signed-off-by: Yimin Gu <ustcymgu@gmail.com>
2022-10-14Static pie support for ppclinted
Modified config files and crt1.S to support static pie elf generation. Signed-off-by: linted <linted@users.noreply.github.com>
2022-10-14arc: add optimized string functions for ARCv3Pavel Kozlov
Add ability to use optimized versions of string functions for ARCv3 32-bit CPUs with UCLIBC_HAS_STRING_ARCH_OPT option. Add optimized memcpy/memset/memcmp code for ARCv3 CPUs based on the code from newlib and adapt for ARCv3 existed optimized strchr/strcmp/strcpy/strlen. Link to the Synopsys newlib repo with code for ARCv3 on GitHub: https://github.com/foss-for-synopsys-dwc-arc-processors/newlib Signed-off-by: Pavel Kozlov <pavel.kozlov@synopsys.com>
2022-09-27arc: add support for ARCv3 32-bit processorsSergey Matyukevich
New ARCv3 ISA includes both 64-bit and 32-bit CPU family. This patch adds support for 32-bit ARCv3 HS5x processors. Signed-off-by: Sergey Matyukevich <sergey.matyukevich@synopsys.com> Signed-off-by: Pavel Kozlov <pavel.kozlov@synopsys.com>
2022-09-27arc: add asm macrosSergey Matyukevich
Add a header file with assembler macros to be able to handle in one place the differences between ARCv2 and ARCv3 ISAs. It is a preparatory step before the introduction of support for ARCv3 CPUs. Signed-off-by: Sergey Matyukevich <sergey.matyukevich@synopsys.com> Signed-off-by: Pavel Kozlov <pavel.kozlov@synopsys.com>
2022-09-27ldso: arc: add compiler option checkSergey Matyukevich
Option '-mno-long-calls' is not supported by all arc gcc compilers. For instance, this option is not supported by GCC for ARCv3 processors. Check if this option is supported before applying it. Signed-off-by: Sergey Matyukevich <sergey.matyukevich@synopsys.com> Signed-off-by: Pavel Kozlov <pavel.kozlov@synopsys.com>
2022-09-27arc: minor cleanup for ARCv2Sergey Matyukevich
Add missing ARCv2 check in MATCH_MACHINE macro. Update comment for EM_ARCV2 define. Signed-off-by: Sergey Matyukevich <sergey.matyukevich@synopsys.com> Signed-off-by: Pavel Kozlov <pavel.kozlov@synopsys.com>
2022-09-27Added some documentation on how to add static-pie support to the porting guidelinted
Signed-off-by: linted <linted@users.noreply.github.com>
2022-09-21xtensa: add static pie supportMax Filippov
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2022-09-21xtensa: drop ARCH_NEEDS_BOOTSTRAP_RELOCSMax Filippov
Xtensa does not define PERFORM_BOOTSTRAP_RELOC so it doesn't need ARCH_NEEDS_BOOTSTRAP_RELOCS definition. Remove it. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2022-09-21xtensa: ldso: make GOT protection adjustment conditionalMax Filippov
Xtensa PERFORM_BOOTSTRAP_GOT macro uses mprotect to make bits of GOT writable, but noMMU linux kernel returns ENOSYS to mprotect syscalls, and syscall wrapper tries to update errno with the error code. This happens well before the relocations are done and results in writes to unrelated locations, memory corruption or protection violations. Only define PERFORM_BOOTSTRAP_GOT when building xtensa configuration with MMU support. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2022-09-21ldso: clean up PERFORM_BOOTSTRAP_GOT ifdeferryMax Filippov
3 architectures currently define PERFORM_BOOTSTRAP_GOT: avr32, mips and xtensa. A block of code that applies relative relocations in the DL_START is disabled when PERFORM_BOOTSTRAP_GOT is defined, unless it's avr32 or mips, effectively disabling it only for xtensa. This may be simplified by removing the call to elf_machine_relative from the xtensa PERFORM_BOOTSTRAP_GOT and always using common code. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2022-09-21static pie: fix building static PDEMax Filippov
When uclibc is built with static PIE support the _dl_load_base variable shared between the libc-tls.c and reloc_static_pie.c creates the dependency that requires linking reloc_static_pie.o into static position-dependent executables resulting in the following build errors: gcc -static test.c -o test ...ld: ...usr/lib/libc.a(reloc_static_pie.os):(.text+0x0): undefined reference to `_DYNAMIC' Move _dl_load_base definition to libc-tls.c to resolve this dependency and fix static PDE build. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2022-09-07nptl: use mmap to allocate initial TLS data for static PIE on noMMUMax Filippov
Static PIE ELFs may be loaded on noMMU linux platforms with FDPIC support, but they don't have adjustable brk, and thus cannot allocate memory for the TLS. Use mmap instead of sbrk to allocate initial TLS memory when building with static PIE support for noMMU. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2022-09-07Added support for creation of Static Position-Independent Executables (PIE) ↵linted
on mips Updated config to allow compilation of rcrt1.o for mips and modified it's crt1.S to perform relocates in __start. The mips architecture performs relocations differently then most other architectures. reloc_static_pie was rewritten, taking code from dl-startup.c, in order to perfrom the additional relocations. Modifications were made to mips' dl-startup.h to allow for the use of contained macros without including _start definition. Signed-off-by: linted <linted@users.noreply.github.com>
2022-08-11bump version for 1.0.42 releasev1.0.42Waldemar Brodkorb
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-15 07:06:39 +0000