* sysdeps/unix/sysv/linux/sparc/init-first.c: New file.
* sysdeps/unix/sysv/linux/sparc/libc-vdso.h: New file.
* sysdeps/unix/sysv/linux/sparc/Makefile: Add dl-vdso to
sysdep_routines in subdir elf.
* sysdeps/unix/sysv/linux/sparc/Versions: Add GLIBC_PRIVATE
version for __vdso_clock_gettime.
* sysdeps/unix/sysv/linux/sparc/sysdep.h (INTERNAL_VSYSCALL_CALL):
Define.
(HAVE_CLOCK_GETTIME_VSYSCALL): Define.
(HAVE_GETTIMEOFDAY_VSYSCALL): Define.
2018-10-18 David S. Miller <davem@davemloft.net>
+ * sysdeps/unix/sysv/linux/sparc/init-first.c: New file.
+ * sysdeps/unix/sysv/linux/sparc/libc-vdso.h: New file.
+ * sysdeps/unix/sysv/linux/sparc/Makefile: Add dl-vdso to
+ sysdep_routines in subdir elf.
+ * sysdeps/unix/sysv/linux/sparc/Versions: Add GLIBC_PRIVATE
+ version for __vdso_clock_gettime.
+ * sysdeps/unix/sysv/linux/sparc/sysdep.h (INTERNAL_VSYSCALL_CALL):
+ Define.
+ (HAVE_CLOCK_GETTIME_VSYSCALL): Define.
+ (HAVE_GETTIMEOFDAY_VSYSCALL): Define.
+
* sysdeps/sparc/fpu/libm-test-ulps: Regenerated.
2018-10-17 H.J. Lu <hongjiu.lu@intel.com>
librt-shared-only-routines += rt-sysdep
endif
+ifeq ($(subdir),elf)
+sysdep_routines += dl-vdso
+endif
+
ifeq ($(subdir),sysvipc)
sysdep_routines += getshmlba
endif
__getshmlba;
}
+ GLIBC_PRIVATE {
+ # nptl/pthread_cond_timedwait.c uses INTERNAL_VSYSCALL(clock_gettime).
+ __vdso_clock_gettime;
+ }
}
libpthread {
--- /dev/null
+/* SPARC VDSO initialization
+ Copyright (C) 2018 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/>. */
+
+#ifdef SHARED
+# include <dl-vdso.h>
+# include <libc-vdso.h>
+
+long int (*VDSO_SYMBOL (gettimeofday)) (struct timeval *, void *)
+ attribute_hidden;
+long int (*VDSO_SYMBOL (clock_gettime)) (clockid_t, struct timespec *)
+ attribute_hidden;
+
+static inline void
+_libc_vdso_platform_setup (void)
+{
+ PREPARE_VERSION_KNOWN (linux_version, LINUX_2_6);
+
+ void *p = _dl_vdso_vsym ("__vdso_gettimeofday", &linux_version);
+ PTR_MANGLE (p);
+ VDSO_SYMBOL (gettimeofday) = p;
+
+ p = _dl_vdso_vsym ("__vdso_clock_gettime", &linux_version);
+ PTR_MANGLE (p);
+ VDSO_SYMBOL (clock_gettime) = p;
+}
+
+# define VDSO_SETUP _libc_vdso_platform_setup
+#endif
+
+#include <csu/init-first.c>
--- /dev/null
+/* VDSO function pointer declarations.
+ Copyright (C) 2018 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 _LIBC_VDSO_H
+#define _LIBC_VDSO_H
+
+#ifdef SHARED
+
+# include <sysdep-vdso.h>
+
+extern long int (*VDSO_SYMBOL(gettimeofday)) (struct timeval *, void *)
+ attribute_hidden;
+extern long int (*VDSO_SYMBOL(clock_gettime)) (clockid_t, struct timespec *);
+
+#endif
+
+#endif /* _LIBC_VDSO_H */
#else /* __ASSEMBLER__ */
+#define INTERNAL_VSYSCALL_CALL(funcptr, err, nr, args...) \
+ ({ \
+ long _ret = funcptr (args); \
+ err = ((unsigned long) (_ret) >= (unsigned long) -4095L); \
+ _ret; \
+ })
+
+/* List of system calls which are supported as vsyscalls. */
+# define HAVE_CLOCK_GETTIME_VSYSCALL 1
+# define HAVE_GETTIMEOFDAY_VSYSCALL 1
+
#undef INLINE_SYSCALL
#define INLINE_SYSCALL(name, nr, args...) \
({ INTERNAL_SYSCALL_DECL(err); \