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While building software that sets _POSIX_C_SOURCE=200809L and uses
stat.st_mtim for ARM, it was noticed that st_mtim was not defined.
This seems to be because common/bits/stat.h was picked up, which does
not take __USE_XOPEN2K8 as a reason to enable st_mtim and related
fields. This appears to be an oversight, and porting the check from
common-generic/bits/stat.h to other architectures does indeed fix the
build issue.
This patch is based on commit 50bd6d06e ("Fix memory corruption due to
struct stat field").
Signed-off-by: J. Neuschäfer <j.neuschaefer@gmx.net>
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- Fallback to __NR_stat syscall in ld.so if we use 4.x kernel headers.
4.x kernel doesn't support 64-bit time so we can use old syscall
- Add preprocessor conditions to have fstat64 and fstatat64 in libc
with old kernel headers
Signed-off-by: Dmitry Chestnykh <dm.chestnykh@gmail.com>
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ARMv8 has particular restrictions which coprocessor can be used and as
such these instructions, which were likely used for backwards
compatibility purposes, cannot be used on ARMv8. We solve this by
checking for ARMv8 and then using the corresponding mnemonics which were
placed in comments alongside the instructions causing issues.
Fixes the following errors:
.../setjmp.S:59:6: error: invalid operand for instruction
stc p11, cr8, [r12], #68
^
.../setjmp.S:62:6: error: invalid operand for instruction
mrc p10, 7, r2, cr1, cr0, 0
^
.../__longjmp.S:69:6: error: invalid operand for instruction
ldc p11, cr8, [r12], #68
^
.../__longjmp.S:73:6: error: invalid operand for instruction
mcr p10, 7, r1, cr1, cr0, 0
^
Signed-off-by: Marcus Haehnel <marcus.haehnel@kernkonzept.com>
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Add casts where necessary to convince clang that the promotion of float
to double is intentional.
Co-authored-by: Sven Linker <sven.linker@kernkonzept.com>
Signed-off-by: Marcus Haehnel <marcus.haehnel@kernkonzept.com>
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iconv_close() accepts iconv_t type (which is void *) and passes
it to free() which accepts void *. However, GCC 14 raises a
-Wint-conversion warning if it is not casted to void * because
GCC cannot unwind typedef of iconv_t.
Signed-off-by: Yuriy Kolerov <ykolerov@synopsys.com>
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See here for details:
https://github.com/wbx-github/uclibc-ng/issues/15
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This change implements Xtensa FDPIC ABI as specified in the first
version of the following document:
https://github.com/jcmvbkbc/xtensa-abi/blob/master/fdpic-xtensa.txt
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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add two ioctls to get and set struct epoll_params to allow users to
control epoll based busy polling of network sockets.
added to uapi in commit 18e2bf0edf4dd88d9656ec92395aa47392e85b61 (Linux
kernel 6.9 and newer).
Signed-off-by: Joe Damato <jdamato@fastly.com>
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Make _init and _fini hidden so that references to these symbols bind
locally in the shared objects. glibc does the same.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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Starting with gcc-13 the compiler provides configuration-specific macro
definitions for the target xtensa core. Use them when available instead
of the configuration overlay file xtensa-config.h
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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Commit 48591e2a259d84247ae38f050bd58e6f7450bb77 forgot to update utime.c
resulting in the following riscv32 build failure with applications using
utime such as bzip2:
/home/buildroot/autobuild/instance-0/output-1/host/riscv32-buildroot-linux-uclibc/bin/ld.real: bzip2.o: in function `copyFileName':
bzip2.c:(.text+0x1fcc): undefined reference to `utime'
Fixes: 48591e2a259d84247ae38f050bd58e6f7450bb77
- http://autobuild.buildroot.org/results/2e37d4e0bcef515fe9e643737419bfd26aa2833e
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
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The correct one is `struct ucontext` -> `ucontext_t`.
Signed-off-by: Dmitry Chestnykh <dm.chestnykh@gmail.com>
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The correct typedef is `struct ucontext` -> `ucontext_t`,
not `struct ucontext_t` -> `ucontext_t` like for other architectures.
Signed-off-by: Dmitry Chestnykh <dm.chestnykh@gmail.com>
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Add missing includes and function decls.
Signed-off-by: Dmitry Chestnykh <dm.chestnykh@gmail.com>
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Signed-off-by: Dmitry Chestnykh <dm.chestnykh@gmail.com>
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This reverts commit 6b6f51c21dd29685bd1339de0bdffc0929316c63.
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- Include sys/types.h instead of asm/types.h
to prevent types conflict for uClibc typedefs and kernel headers
typedefs.
- Cast 3rd arg of utimensat_time64 syscall to integer type
to avoid compiler's -Wint-conversion error. The error was found
during uClibc compilation for mips32.
Signed-off-by: Dmitry Chestnykh <dm.chestnykh@gmail.com>
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The commit 74ca8d6f5d2e ("remove UCLIBC_HAS_LFS") removed conditional
compilation dependent on __UCLIBC_HAS_LFS__, assuming it to be always
defined, but removed the wrong branch in the definition of
kernel_stat64.
Fix kernel_stat64 definition to be stat64.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Tested-by: Chris Packham <judge.packham@gmail.com>
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Check that the size passed to memalign() is not greater than PTRDIFF_MAX
before adjusting it, otherwise it may wrap around in the adjustment.
This fixes gcc testsuite test gcc.dg/torture/pr60092.c
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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This function haven't have prologue/epilogue/cfi directives etc.
Signed-off-by: Dmitry Chestnykh <dm.chestnykh@gmail.com>
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For x86 we have to copy only mask, handler and flags.
We haven't set SA_RESTORER bit in sa_flags anyway.
This patch fixes multiple test failures on x86.
Also we have to build uClibc with FP for x86 because
without FP NPTL and libgcc code cannot properly unwind
the stack during asynchronous cancellation of system calls.
Signed-off-by: Dmitry Chestnykh <dm.chestnykh@gmail.com>
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- Cleanup dl-vdso.c code.
- Pass `void *` as first arg to `load_vdso()`, using 32-bit type
is completely wrong on 64bit architectures.
- Split libc code and vDSO-related code.
Move arch-specific implementations into separate files.
The performance improvement is for example 50-60 times on ARMv7
and about 4 times on x86_64.
Signed-off-by: Dmitry Chestnykh <dm.chestnykh@gmail.com>
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Remove ^L (0x0c) chars from source code.
Signed-off-by: Petr Vorel <petr.vorel@gmail.com>
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- Use TIME64 by default for rv32, usage of 32-bit time
leads to a lot of incompatibilities with linux kernel 6.6.x and later
versions.
- Add some other corrections to use proper system calls on riscv32
platform.
Signed-off-by: Dmitry Chestnykh <dm.chestnykh@gmail.com>
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MMU ELF
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Signed-off-by: Dmitry Chestnykh <dm.chestnykh@gmail.com>
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With time64 enabled we use statx() system call and the appropriate
routines for results conversion. There is no need in `__ts32_struct`
anymore.
Signed-off-by: Dmitry Chestnykh <dm.chestnykh@gmail.com>
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Previously the common definition of this structure was broken by a mistake.
Restore it correctly for all needed architectures and all use cases.
Signed-off-by: Dmitry Chestnykh <dm.chestnykh@gmail.com>
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By some reason sparc ld.so cannot work properly with
statx() system call, so fallback to regular stat() family in ld.so.
Signed-off-by: Dmitry Chestnykh <dm.chestnykh@gmail.com>
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