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With gcc-14 warnings caused by type mismatches turn to errors:
- got_entry is a pointer in the _dl_linux_resolver(), but the function
_dl_linux_resolver() returns unsigned long. Convert got_entry to
unsigned long when returning
- first argument of _dl_funcdesc_for() is a pointer, but (symbol_addr +
reloc_value) is unsigned long in the _dl_do_reloc(). Convert function
argument to (void *)
- struct funcdesc_value::entry_point is a pointer, but DL_RELOC_ADDR
returns ElfW(Addr). Convert DL_RELOC_ADDR result to (void *) before
assigning to funcdesc_value::entry_point
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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With gcc-14 warnings caused by type mismatches turn to errors:
- (void **) needs explicit conversion operator to become
struct funcdesc_value **entry
- both subexpressions of the ternary operator must be pointers
- %p should be used instead of %x to print a pointer
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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With gcc-14 warnings caused by type mismatches turn to errors:
- iconv_t is not a pointer type, convert the result directly to iconv_t
in combine_to_from()
- unsigned int is not the same as wchar_t, use temporary wchar_t wc as
an argument for utf8dec_wchar()
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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Glibc and musl both defines this macro.
Glibc defines it for 64-bit time_t on 32-bit arch
and for 64-bit architectures.
Signed-off-by: Dmitry Chestnykh <dm.chestnykh@gmail.com>
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Make rule that announces and makes static libc archive can generate
command line that is too long when a full path O= option is used. That
breaks the build with the following message:
make: /bin/sh: Argument list too long
Use make $(file) construct to generate file list file and use that file
as $(AR) argument instead.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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When building libc out-of-tree *context functions cannot find generated
header ucontext_i.h:
libc/sysdeps/linux/xtensa/setcontext.S:19:10:
fatal error: ucontext_i.h: No such file or directory
Fix that by adding include path to the build directory with that file to
the compiler flags.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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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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any longer
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The asm code has high maintainance cost.
The cost is extremely high if we take into
consideration time64 implementation which implies
operating with 64bit numbers on 32bit system.
Also glibc uses mainly C in NPTL code.
Signed-off-by: Dmitry Chestnykh <dm.chestnykh@gmail.com>
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In aarch64 when the general dynamic access model is used for tls data
the linker emits two dynamic relocs (R_AARCH64_TLS_DTPMOD(64) and
R_AARCH64_TLS_DTPREL(64)) that must be applied by ld.so during object
loading.
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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- Add macroses for vDSO functions names because
in some architectures these names differ from the default ones.
- Add header guards in dl-syscalls.h .
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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Macros __attribute__, __format__ and __printf__ are defined in argp.h
for compatibility with ANSI and old gccs. But leaving them effective
out of the scope of the header may break applications relying on
these compiler attributes even with __STRICT_ANSI__ defined. So undef
the macros after using.
Signed-off-by: Yao Zi <ziyao@disroot.org>
Reviewed-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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Quelches a compiler warning by that memset was implicitly declared.
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The variable is used since 04a676f3c8d2443499f27612f69ee88e12089e61.
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The j0f implementation should, like the other float implementations,
call the __ieee754_y0 variant for doubles. A float variant is not
declared and leads to a compile error on c99 builds.
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