mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-09 14:50:05 +00:00
LoongArch: Add glibc.cpu.hwcap support.
The current IFUNC selection is always using the most recent features which are available via AT_HWCAP. But in some scenarios it is useful to adjust this selection. The environment variable: GLIBC_TUNABLES=glibc.cpu.hwcaps=-xxx,yyy,zzz,.... can be used to enable HWCAP feature yyy, disable HWCAP feature xxx, where the feature name is case-sensitive and has to match the ones used in sysdeps/loongarch/cpu-tunables.c. Signed-off-by: caiyinyu <caiyinyu@loongson.cn>
This commit is contained in:
parent
f4724843ad
commit
095067efdf
@ -525,7 +525,10 @@ a CPU arch-level like @code{z13} instead of single HWCAP and STFLE features.
|
||||
On powerpc, the supported HWCAP and HWCAP2 features can be found in
|
||||
@code{sysdeps/powerpc/dl-procinfo.c}.
|
||||
|
||||
This tunable is specific to i386, x86-64, s390x and powerpc.
|
||||
On loongarch, the supported HWCAP features can be found in
|
||||
@code{sysdeps/loongarch/cpu-tunables.c}.
|
||||
|
||||
This tunable is specific to i386, x86-64, s390x, powerpc and loongarch.
|
||||
@end deftp
|
||||
|
||||
@deftp Tunable glibc.cpu.cached_memopt
|
||||
|
@ -1,11 +1,23 @@
|
||||
ifeq ($(subdir),misc)
|
||||
sysdep_headers += sys/asm.h
|
||||
|
||||
tests += \
|
||||
tst-hwcap-tunables \
|
||||
# tests
|
||||
|
||||
tst-hwcap-tunables-ARGS = -- $(host-test-program-cmd)
|
||||
endif
|
||||
|
||||
ifeq ($(subdir),elf)
|
||||
gen-as-const-headers += dl-link.sym
|
||||
endif
|
||||
|
||||
ifeq ($(subdir),elf)
|
||||
sysdep-dl-routines += \
|
||||
dl-get-cpu-features \
|
||||
# sysdep-dl-routines
|
||||
endif
|
||||
|
||||
# LoongArch's assembler also needs to know about PIC as it changes the
|
||||
# definition of some assembler macros.
|
||||
ASFLAGS-.os += $(pic-ccflag)
|
||||
|
87
sysdeps/loongarch/cpu-tunables.c
Normal file
87
sysdeps/loongarch/cpu-tunables.c
Normal file
@ -0,0 +1,87 @@
|
||||
/* LoongArch CPU feature tuning.
|
||||
This file is part of the GNU C Library.
|
||||
Copyright (C) 2024 Free Software Foundation, Inc.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, see
|
||||
<http://www.gnu.org/licenses/>. */
|
||||
|
||||
#include <stdbool.h>
|
||||
#include <stdint.h>
|
||||
#include <unistd.h> /* Get STDOUT_FILENO for _dl_printf. */
|
||||
#include <elf/dl-tunables.h>
|
||||
#include <string.h>
|
||||
#include <cpu-features.h>
|
||||
#include <ldsodefs.h>
|
||||
#include <sys/auxv.h>
|
||||
#include <dl-tunables-parse.h>
|
||||
#include <dl-symbol-redir-ifunc.h>
|
||||
|
||||
#define CHECK_GLIBC_IFUNC_CPU(f, name, len) \
|
||||
_Static_assert (sizeof (#name) - 1 == len, #name " != " #len); \
|
||||
if (tunable_str_comma_strcmp_cte (&f, #name)) \
|
||||
{ \
|
||||
if (f.disable) \
|
||||
GLRO(dl_larch_cpu_features).hwcap &= (~HWCAP_LOONGARCH_##name); \
|
||||
else \
|
||||
GLRO(dl_larch_cpu_features).hwcap |= HWCAP_LOONGARCH_##name; \
|
||||
break; \
|
||||
}
|
||||
|
||||
attribute_hidden void
|
||||
TUNABLE_CALLBACK (set_hwcaps) (tunable_val_t *valp)
|
||||
{
|
||||
/* The current IFUNC selection is based on microbenchmarks in glibc.
|
||||
It should give the best performance for most workloads. But other
|
||||
choices may have better performance for a particular workload or on
|
||||
the hardware which wasn't available when the selection was made.
|
||||
The environment variable:
|
||||
|
||||
GLIBC_TUNABLES=glibc.cpu.hwcaps=-xxx,yyy,-zzz,....
|
||||
|
||||
can be used to enable CPU/ARCH feature yyy, disable CPU/ARCH feature
|
||||
yyy and zzz, where the feature name is case-sensitive and has to
|
||||
match the ones in cpu-features.h. It can be used by glibc developers
|
||||
to tune for a new processor or override the IFUNC selection to
|
||||
improve performance for a particular workload.
|
||||
|
||||
NOTE: the IFUNC selection may change over time. Please check all
|
||||
multiarch implementations when experimenting. */
|
||||
|
||||
struct tunable_str_comma_state_t ts;
|
||||
tunable_str_comma_init (&ts, valp);
|
||||
|
||||
struct tunable_str_comma_t n;
|
||||
while (tunable_str_comma_next (&ts, &n))
|
||||
{
|
||||
switch (n.len)
|
||||
{
|
||||
default:
|
||||
break;
|
||||
case 3:
|
||||
{
|
||||
CHECK_GLIBC_IFUNC_CPU (n, LSX, 3);
|
||||
CHECK_GLIBC_IFUNC_CPU (n, UAL, 3);
|
||||
}
|
||||
break;
|
||||
case 4:
|
||||
{
|
||||
CHECK_GLIBC_IFUNC_CPU (n, LASX, 4);
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/* Ensure that the user has not enabled any unsupported features. */
|
||||
GLRO(dl_larch_cpu_features).hwcap &= GLRO(dl_hwcap);
|
||||
}
|
25
sysdeps/loongarch/dl-get-cpu-features.c
Normal file
25
sysdeps/loongarch/dl-get-cpu-features.c
Normal file
@ -0,0 +1,25 @@
|
||||
/* Define _dl_larch_get_cpu_features.
|
||||
Copyright (C) 2024 Free Software Foundation, Inc.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, see
|
||||
<https://www.gnu.org/licenses/>. */
|
||||
|
||||
|
||||
#include <ldsodefs.h>
|
||||
|
||||
const struct cpu_features *
|
||||
_dl_larch_get_cpu_features (void)
|
||||
{
|
||||
return &GLRO(dl_larch_cpu_features);
|
||||
}
|
@ -29,6 +29,8 @@
|
||||
#include <dl-static-tls.h>
|
||||
#include <dl-machine-rel.h>
|
||||
|
||||
#include <cpu-features.c>
|
||||
|
||||
#ifndef _RTLD_PROLOGUE
|
||||
# define _RTLD_PROLOGUE(entry) \
|
||||
".globl\t" __STRING (entry) "\n\t" \
|
||||
@ -53,6 +55,23 @@
|
||||
#define ELF_MACHINE_NO_REL 1
|
||||
#define ELF_MACHINE_NO_RELA 0
|
||||
|
||||
#define DL_PLATFORM_INIT dl_platform_init ()
|
||||
|
||||
static inline void __attribute__ ((unused))
|
||||
dl_platform_init (void)
|
||||
{
|
||||
if (GLRO(dl_platform) != NULL && *GLRO(dl_platform) == '\0')
|
||||
/* Avoid an empty string which would disturb us. */
|
||||
GLRO(dl_platform) = NULL;
|
||||
|
||||
#ifdef SHARED
|
||||
/* init_cpu_features has been called early from __libc_start_main in
|
||||
static executable. */
|
||||
init_cpu_features (&GLRO(dl_larch_cpu_features));
|
||||
#endif
|
||||
}
|
||||
|
||||
|
||||
/* Return nonzero iff ELF header is compatible with the running host. */
|
||||
static inline int
|
||||
elf_machine_matches_host (const ElfW (Ehdr) *ehdr)
|
||||
@ -290,10 +309,10 @@ elf_machine_runtime_setup (struct link_map *l, struct r_scope_elem *scope[],
|
||||
#ifdef SHARED
|
||||
if (profile != 0)
|
||||
{
|
||||
# if !defined __loongarch_soft_float
|
||||
if (SUPPORT_LASX)
|
||||
#if !defined __loongarch_soft_float
|
||||
if (RTLD_SUPPORT_LASX)
|
||||
gotplt[0] = (ElfW(Addr)) &_dl_runtime_profile_lasx;
|
||||
else if (SUPPORT_LSX)
|
||||
else if (RTLD_SUPPORT_LSX)
|
||||
gotplt[0] = (ElfW(Addr)) &_dl_runtime_profile_lsx;
|
||||
else
|
||||
# endif
|
||||
@ -312,9 +331,9 @@ elf_machine_runtime_setup (struct link_map *l, struct r_scope_elem *scope[],
|
||||
indicated by the offset on the stack, and then jump to
|
||||
the resolved address. */
|
||||
#if !defined __loongarch_soft_float
|
||||
if (SUPPORT_LASX)
|
||||
if (RTLD_SUPPORT_LASX)
|
||||
gotplt[0] = (ElfW(Addr)) &_dl_runtime_resolve_lasx;
|
||||
else if (SUPPORT_LSX)
|
||||
else if (RTLD_SUPPORT_LSX)
|
||||
gotplt[0] = (ElfW(Addr)) &_dl_runtime_resolve_lsx;
|
||||
else
|
||||
#endif
|
||||
|
25
sysdeps/loongarch/dl-tunables.list
Normal file
25
sysdeps/loongarch/dl-tunables.list
Normal file
@ -0,0 +1,25 @@
|
||||
# LoongArch specific tunables.
|
||||
# Copyright (C) 2024 Free Software Foundation, Inc.
|
||||
# This file is part of the GNU C Library.
|
||||
|
||||
# The GNU C Library is free software; you can redistribute it and/or
|
||||
# modify it under the terms of the GNU Lesser General Public
|
||||
# License as published by the Free Software Foundation; either
|
||||
# version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
# The GNU C Library is distributed in the hope that it will be useful,
|
||||
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
# Lesser General Public License for more details.
|
||||
|
||||
# You should have received a copy of the GNU Lesser General Public
|
||||
# License along with the GNU C Library; if not, see
|
||||
# <http://www.gnu.org/licenses/>.
|
||||
|
||||
glibc {
|
||||
cpu {
|
||||
hwcaps {
|
||||
type: STRING
|
||||
}
|
||||
}
|
||||
}
|
@ -19,6 +19,9 @@
|
||||
#ifndef _DL_IFUNC_GENERIC_H
|
||||
#define _DL_IFUNC_GENERIC_H
|
||||
|
||||
#ifndef SHARED
|
||||
asm ("memset = __memset_aligned");
|
||||
asm ("memcmp = __memcmp_aligned");
|
||||
#endif
|
||||
|
||||
#endif
|
||||
|
136
sysdeps/loongarch/tst-hwcap-tunables.c
Normal file
136
sysdeps/loongarch/tst-hwcap-tunables.c
Normal file
@ -0,0 +1,136 @@
|
||||
/* Tests for LoongArch GLIBC_TUNABLES=glibc.cpu.hwcaps filter.
|
||||
Copyright (C) 2024 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, see
|
||||
<http://www.gnu.org/licenses/>. */
|
||||
|
||||
#include <array_length.h>
|
||||
#include <getopt.h>
|
||||
#include <ifunc-impl-list.h>
|
||||
#include <spawn.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <support/check.h>
|
||||
#include <support/support.h>
|
||||
#include <support/xunistd.h>
|
||||
#include <sys/auxv.h>
|
||||
#include <sys/wait.h>
|
||||
|
||||
/* Nonzero if the program gets called via `exec'. */
|
||||
#define CMDLINE_OPTIONS \
|
||||
{ "restart", no_argument, &restart, 1 }, \
|
||||
{ "enable", no_argument, &enable, 1 },
|
||||
static int restart;
|
||||
static int enable;
|
||||
|
||||
/* Hold the four initial argument used to respawn the process, plus the extra
|
||||
'--direct', '--restart', and the function to check. */
|
||||
static char *spargs[9];
|
||||
static int fc;
|
||||
|
||||
/* Called on process re-execution. */
|
||||
_Noreturn static void
|
||||
handle_restart (int argc, char *argv[])
|
||||
{
|
||||
TEST_VERIFY_EXIT (argc == 1);
|
||||
const char *funcname = argv[0];
|
||||
|
||||
struct libc_ifunc_impl impls[32];
|
||||
int cnt = __libc_ifunc_impl_list ("memcpy", impls, array_length (impls));
|
||||
if (cnt == 0)
|
||||
_exit (EXIT_SUCCESS);
|
||||
TEST_VERIFY_EXIT (cnt >= 1);
|
||||
for (int i = 0; i < cnt; i++)
|
||||
{
|
||||
if (strcmp (impls[i].name, funcname) == 0)
|
||||
{
|
||||
if (enable && impls[i].usable != true)
|
||||
FAIL_EXIT1 ("FAIL: %s ifunc selection is not enabled.\n", funcname);
|
||||
else if (!enable && impls[i].usable != false)
|
||||
FAIL_EXIT1 ("FAIL: %s ifunc selection is not disabled.\n", funcname);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
_exit (EXIT_SUCCESS);
|
||||
}
|
||||
|
||||
static void
|
||||
run_test (const char *filter, const char *funcname, int disable)
|
||||
{
|
||||
if (disable)
|
||||
printf ("info: checking filter %s (expect %s ifunc "
|
||||
"selection to be disabled)\n", filter, funcname);
|
||||
else
|
||||
{
|
||||
printf ("info: checking filter %s (expect %s ifunc "
|
||||
"selection to be enabled)\n", filter, funcname);
|
||||
spargs[fc++] = (char *) "--enable";
|
||||
}
|
||||
|
||||
char *tunable = xasprintf ("GLIBC_TUNABLES=glibc.cpu.hwcaps=%s", filter);
|
||||
char *const newenvs[] = { (char*) tunable, NULL };
|
||||
spargs[fc] = (char *) funcname;
|
||||
|
||||
pid_t pid;
|
||||
TEST_COMPARE (posix_spawn (&pid, spargs[0], NULL, NULL, spargs, newenvs), 0);
|
||||
int status;
|
||||
TEST_COMPARE (xwaitpid (pid, &status, 0), pid);
|
||||
TEST_VERIFY (WIFEXITED (status));
|
||||
TEST_VERIFY (!WIFSIGNALED (status));
|
||||
TEST_COMPARE (WEXITSTATUS (status), 0);
|
||||
|
||||
if (!disable)
|
||||
fc--;
|
||||
free (tunable);
|
||||
}
|
||||
|
||||
static int
|
||||
do_test (int argc, char *argv[])
|
||||
{
|
||||
if (restart)
|
||||
handle_restart (argc - 1, &argv[1]);
|
||||
|
||||
TEST_VERIFY_EXIT (argc == 2 || argc == 5);
|
||||
|
||||
int i;
|
||||
for (i = 0; i < argc - 1; i++)
|
||||
spargs[i] = argv[i + 1];
|
||||
spargs[i++] = (char *) "--direct";
|
||||
spargs[i++] = (char *) "--restart";
|
||||
fc = i++;
|
||||
spargs[i] = NULL;
|
||||
|
||||
unsigned long int hwcap = getauxval (AT_HWCAP);
|
||||
|
||||
if (hwcap & HWCAP_LOONGARCH_LASX)
|
||||
run_test ("-LASX", "__memcpy_lasx", 1);
|
||||
if (hwcap & HWCAP_LOONGARCH_LSX)
|
||||
run_test ("-LSX", "__memcpy_lsx", 1);
|
||||
if (hwcap & HWCAP_LOONGARCH_UAL)
|
||||
run_test ("-UAL", "__memcpy_unaligned", 1);
|
||||
|
||||
/* __memcpy_aligned is the default ifunc selection and will be
|
||||
* always enabled. */
|
||||
run_test ("-LASX,-LSX,-UAL", "__memcpy_aligned", 0);
|
||||
run_test ("-LASX,-LSX", "__memcpy_aligned", 0);
|
||||
run_test ("-LASX", "__memcpy_aligned", 0);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
#define TEST_FUNCTION_ARGV do_test
|
||||
#include <support/test-driver.c>
|
30
sysdeps/unix/sysv/linux/loongarch/cpu-features.c
Normal file
30
sysdeps/unix/sysv/linux/loongarch/cpu-features.c
Normal file
@ -0,0 +1,30 @@
|
||||
/* Initialize CPU feature data. LoongArch64 version.
|
||||
This file is part of the GNU C Library.
|
||||
Copyright (C) 2024 Free Software Foundation, Inc.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, see
|
||||
<http://www.gnu.org/licenses/>. */
|
||||
|
||||
#include <cpu-features.h>
|
||||
#include <elf/dl-hwcaps.h>
|
||||
#include <elf/dl-tunables.h>
|
||||
extern void TUNABLE_CALLBACK (set_hwcaps) (tunable_val_t *) attribute_hidden;
|
||||
|
||||
static inline void
|
||||
init_cpu_features (struct cpu_features *cpu_features)
|
||||
{
|
||||
GLRO(dl_larch_cpu_features).hwcap = GLRO(dl_hwcap);
|
||||
TUNABLE_GET (glibc, cpu, hwcaps, tunable_val_t *,
|
||||
TUNABLE_CALLBACK (set_hwcaps));
|
||||
}
|
@ -19,12 +19,23 @@
|
||||
#ifndef _CPU_FEATURES_LOONGARCH64_H
|
||||
#define _CPU_FEATURES_LOONGARCH64_H
|
||||
|
||||
#include <stdint.h>
|
||||
#include <sys/auxv.h>
|
||||
|
||||
#define SUPPORT_UAL (GLRO (dl_hwcap) & HWCAP_LOONGARCH_UAL)
|
||||
#define SUPPORT_LSX (GLRO (dl_hwcap) & HWCAP_LOONGARCH_LSX)
|
||||
#define SUPPORT_LASX (GLRO (dl_hwcap) & HWCAP_LOONGARCH_LASX)
|
||||
struct cpu_features
|
||||
{
|
||||
uint64_t hwcap;
|
||||
};
|
||||
|
||||
/* Get a pointer to the CPU features structure. */
|
||||
extern const struct cpu_features *
|
||||
_dl_larch_get_cpu_features (void) __attribute__ ((pure));
|
||||
|
||||
#define SUPPORT_UAL (GLRO (dl_larch_cpu_features).hwcap & HWCAP_LOONGARCH_UAL)
|
||||
#define SUPPORT_LSX (GLRO (dl_larch_cpu_features).hwcap & HWCAP_LOONGARCH_LSX)
|
||||
#define SUPPORT_LASX (GLRO (dl_larch_cpu_features).hwcap & HWCAP_LOONGARCH_LASX)
|
||||
#define RTLD_SUPPORT_LSX (GLRO (dl_hwcap) & HWCAP_LOONGARCH_LSX)
|
||||
#define RTLD_SUPPORT_LASX (GLRO (dl_hwcap) & HWCAP_LOONGARCH_LASX)
|
||||
#define INIT_ARCH()
|
||||
|
||||
#endif /* _CPU_FEATURES_LOONGARCH64_H */
|
||||
|
60
sysdeps/unix/sysv/linux/loongarch/dl-procinfo.c
Normal file
60
sysdeps/unix/sysv/linux/loongarch/dl-procinfo.c
Normal file
@ -0,0 +1,60 @@
|
||||
/* Data for LoongArch64 version of processor capability information.
|
||||
Linux version.
|
||||
Copyright (C) 2024 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, see
|
||||
<http://www.gnu.org/licenses/>. */
|
||||
|
||||
/* If anything should be added here check whether the size of each string
|
||||
is still ok with the given array size.
|
||||
|
||||
All the #ifdefs in the definitions are quite irritating but
|
||||
necessary if we want to avoid duplicating the information. There
|
||||
are three different modes:
|
||||
|
||||
- PROCINFO_DECL is defined. This means we are only interested in
|
||||
declarations.
|
||||
|
||||
- PROCINFO_DECL is not defined:
|
||||
|
||||
+ if SHARED is defined the file is included in an array
|
||||
initializer. The .element = { ... } syntax is needed.
|
||||
|
||||
+ if SHARED is not defined a normal array initialization is
|
||||
needed.
|
||||
*/
|
||||
|
||||
#ifndef PROCINFO_CLASS
|
||||
# define PROCINFO_CLASS
|
||||
#endif
|
||||
|
||||
#if !IS_IN (ldconfig)
|
||||
# if !defined PROCINFO_DECL && defined SHARED
|
||||
._dl_larch_cpu_features
|
||||
# else
|
||||
PROCINFO_CLASS struct cpu_features _dl_larch_cpu_features
|
||||
# endif
|
||||
# ifndef PROCINFO_DECL
|
||||
= { }
|
||||
# endif
|
||||
# if !defined SHARED || defined PROCINFO_DECL
|
||||
;
|
||||
# else
|
||||
,
|
||||
# endif
|
||||
#endif
|
||||
|
||||
#undef PROCINFO_DECL
|
||||
#undef PROCINFO_CLASS
|
21
sysdeps/unix/sysv/linux/loongarch/dl-sysdep.c
Normal file
21
sysdeps/unix/sysv/linux/loongarch/dl-sysdep.c
Normal file
@ -0,0 +1,21 @@
|
||||
/* Operating system support for run-time dynamic linker. LoongArch version.
|
||||
Copyright (C) 2024 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, see
|
||||
<http://www.gnu.org/licenses/>. */
|
||||
|
||||
#include <config.h>
|
||||
#include <sysdeps/loongarch/cpu-tunables.c>
|
||||
#include <sysdeps/unix/sysv/linux/dl-sysdep.c>
|
34
sysdeps/unix/sysv/linux/loongarch/libc-start.c
Normal file
34
sysdeps/unix/sysv/linux/loongarch/libc-start.c
Normal file
@ -0,0 +1,34 @@
|
||||
/* Override csu/libc-start.c on LoongArch64.
|
||||
Copyright (C) 2024 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, see
|
||||
<http://www.gnu.org/licenses/>. */
|
||||
|
||||
#ifndef SHARED
|
||||
|
||||
/* Mark symbols hidden in static PIE for early self relocation to work. */
|
||||
#if BUILD_PIE_DEFAULT
|
||||
# pragma GCC visibility push (hidden)
|
||||
#endif
|
||||
|
||||
#include <ldsodefs.h>
|
||||
#include <cpu-features.c>
|
||||
|
||||
extern struct cpu_features _dl_larch_cpu_features;
|
||||
|
||||
#define ARCH_INIT_CPU_FEATURES() init_cpu_features (&_dl_larch_cpu_features)
|
||||
|
||||
#endif
|
||||
#include <csu/libc-start.c>
|
Loading…
Reference in New Issue
Block a user