glibc

Tree: f4c142bb9f

Adhemerval Zanella f4c142bb9f arm: Use _dl_find_object on __gnu_Unwind_Find_exidx (BZ 31405) Instead of __dl_iterate_phdr. On ARM dlfo_eh_frame/dlfo_eh_count maps to PT_ARM_EXIDX vaddr start / length. On a Neoverse N1 machine with 160 cores, the following program: $ cat test.c #include <stdlib.h> #include <pthread.h> #include <assert.h> enum { niter = 1024, ntimes = 128, }; static void * tf (void arg) { int a = (int) arg; for (int i = 0; i < niter; i++) { void p[ntimes]; for (int j = 0; j < ntimes; j++) p[j] = malloc (a * 128); for (int j = 0; j < ntimes; j++) free (p[j]); } return NULL; } int main (int argc, char argv[]) { enum { nthreads = 16 }; pthread_t t[nthreads]; for (int i = 0; i < nthreads; i ++) assert (pthread_create (&t[i], NULL, tf, (void ) i) == 0); for (int i = 0; i < nthreads; i++) { void *r; assert (pthread_join (t[i], &r) == 0); assert (r == NULL); } return 0; } $ arm-linux-gnueabihf-gcc -fsanitize=address test.c -o test Improves from ~15s to 0.5s. Checked on arm-linux-gnueabihf.		2 years ago
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aarch64	string: Use builtins for ffs and ffsll	2 years ago
alpha	string: Use builtins for ffs and ffsll	2 years ago
arc	string: Use builtins for ffs and ffsll	2 years ago
arm	arm: Use _dl_find_object on __gnu_Unwind_Find_exidx (BZ 31405)	2 years ago
csky	Refer to C23 in place of C2X in glibc	2 years ago
generic	string: Use builtins for ffs and ffsll	2 years ago
gnu	Update copyright dates with scripts/update-copyrights	2 years ago
hppa	Refer to C23 in place of C2X in glibc	2 years ago
htl	Update copyright dates with scripts/update-copyrights	2 years ago
hurd	Update copyright dates with scripts/update-copyrights	2 years ago
i386	i386: Use generic memrchr in libc (bug 31316)	2 years ago
ieee754	Rename c2x / gnu2x tests to c23 / gnu23	2 years ago
loongarch	Apply the Makefile sorting fix	2 years ago
m68k	string: Use builtins for ffs and ffsll	2 years ago
mach	Implement setcontext/getcontext/makecontext/swapcontext for Hurd x86_64	2 years ago
microblaze	Refer to C23 in place of C2X in glibc	2 years ago
mips	math: Update mips64 ulps	2 years ago
nios2	Refer to C23 in place of C2X in glibc	2 years ago
nptl	Update copyright dates with scripts/update-copyrights	2 years ago
or1k	Update copyright dates with scripts/update-copyrights	2 years ago
posix	Update copyright dates with scripts/update-copyrights	2 years ago
powerpc	Rename c2x / gnu2x tests to c23 / gnu23	2 years ago
pthread	Update copyright dates with scripts/update-copyrights	2 years ago
riscv	Refer to C23 in place of C2X in glibc	2 years ago
s390	string: Use builtins for ffs and ffsll	2 years ago
sh	Refer to C23 in place of C2X in glibc	2 years ago
sparc	sparc: Treat the version field in the FPU control word as reserved	2 years ago
unix	Linux: Switch back to assembly syscall wrapper for prctl (bug 29770)	2 years ago
wordsize-32	Update copyright dates with scripts/update-copyrights	2 years ago
wordsize-64	Update copyright dates with scripts/update-copyrights	2 years ago
x86	Apply the Makefile sorting fix	2 years ago
x86_64	Apply the Makefile sorting fix	2 years ago