mirror of git://sourceware.org/git/glibc.git
6073bae64c
It implements all the required syscall for the all Linux kABIS on
fstatat{64} instead of calling fxstatat{64}.
On non-LFS implementation, it handles 3 cases:
1. New kABIs which uses generic pre 64-bit time Linux ABI (csky and
nios): it issues __NR_fstat64 plus handle the overflow on st_ino,
st_size, or st_blocks.
2. Old KABIs with old non-LFS support (arm, i386, hppa, m68k,
microblaze, mips32, s390, sh, powerpc, and sparc32): it issues
__NR_fstatat64 and convert the result to struct stat.
3. 64-bit kABI outliers (mips64 and mips64-n32): it issues
__NR_newfstatat and convert the result to struct stat.
The generic LFS implementation handles multiple cases:
1. XSTAT_IS_XSTAT64 being 1:
1.1. 64-bit kABI (aarch64, ia64, powerpc64*, s390x, riscv64, and
x86_64): it issues __NR_newfstatat.
1.2. 64-bit kABI outlier (alpha): it issues __NR_fstatat64.
1.3. 64-bit kABI outlier where struct stat64 does not match kernel
one (sparc64): it issues __NR_fstatat64 and convert the result
to struct stat64.
1.4. 32-bit kABI with default 64-bit time_t (arc, riscv32): it
issues __NR_statx and convert the result to struct stat64.
2. Old ABIs with XSTAT_IS_XSTAT64 being 0:
2.1. All kABIs with non-LFS support (arm, csky, i386, hppa, m68k,
microblaze, nios2, sh, powerpc32, and sparc32): it issues
__NR_fstatat64.
2.2. 64-bit kABI outliers (mips64 and mips64-n32): it issues
__NR_newfstatat and convert the result to struct stat64.
It allows to remove all the hidden definitions from the {f,l}xstat{64}
(some are still kept because Hurd requires it).
Checked with a build for all affected ABIs. I also checked on x86_64,
i686, powerpc, powerpc64le, sparcv9, sparc64, s390, and s390x.
Reviewed-by: Lukasz Majewski <lukma@denx.de>
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|---|---|---|
| .. | ||
| bits | ||
| Implies | ||
| Makefile | ||
| Versions | ||
| ____longjmp_chk.S | ||
| __longjmp.S | ||
| __start_context.S | ||
| arch-syscall.h | ||
| brk.S | ||
| bsd-_setjmp.S | ||
| bsd-setjmp.S | ||
| c++-types.data | ||
| clone.S | ||
| configure | ||
| configure.ac | ||
| dl-brk.S | ||
| dl-cache.h | ||
| getcontext.S | ||
| ipc_priv.h | ||
| jmp_buf-macros.h | ||
| kernel_stat.h | ||
| kstat_cp.h | ||
| ld.abilist | ||
| libBrokenLocale.abilist | ||
| libanl.abilist | ||
| libc.abilist | ||
| libcrypt.abilist | ||
| libdl.abilist | ||
| libm.abilist | ||
| libnsl.abilist | ||
| libpthread.abilist | ||
| libresolv.abilist | ||
| librt.abilist | ||
| libthread_db.abilist | ||
| libutil.abilist | ||
| localplt.data | ||
| longjmp.S | ||
| makecontext.c | ||
| personality.c | ||
| pipe.S | ||
| register-dump.h | ||
| setcontext.S | ||
| setjmp.S | ||
| shlib-versions | ||
| sigaction.c | ||
| sigcontextinfo.h | ||
| sigjmp.S | ||
| sigreturn_stub.S | ||
| sizes.h | ||
| swapcontext.c | ||
| syscall.S | ||
| syscalls.list | ||
| sysdep.h | ||
| timer_create.c | ||
| timer_delete.c | ||
| timer_getoverr.c | ||
| timer_gettime.c | ||
| timer_settime.c | ||
| ucontext_i.h | ||
| vfork.S | ||
| wordexp.c | ||
| xstatconv.c | ||