2019-09-17 Adhemerval Zanella <adhemerval.zanella@linaro.org>
+ * sysdeps/powerpc/powerpc32/backtrace.c (is_sigtramp_address,
+ is_sigtramp_address_rt): Use HAVE_SIGTRAMP_{RT}32 instead of SHARED.
+ * sysdeps/powerpc/powerpc64/backtrace.c (is_sigtramp_address):
+ Likewise.
+ * sysdeps/unix/sysv/linux/aarch64/init-first.c: Remove file.
+ * sysdeps/unix/sysv/linux/aarch64/libc-vdso.h: Likewise.
+ * sysdeps/unix/sysv/linux/arm/init-first.c: Likewise.
+ * sysdeps/unix/sysv/linux/arm/libc-vdso.h: Likewise.
+ * sysdeps/unix/sysv/linux/mips/init-first.c: Likewise.
+ * sysdeps/unix/sysv/linux/mips/libc-vdso.h: Likewise.
+ * sysdeps/unix/sysv/linux/i386/init-first.c: Likewise.
+ * sysdeps/unix/sysv/linux/riscv/init-first.c: Likewise.
+ * sysdeps/unix/sysv/linux/riscv/libc-vdso.h: Likewise.
+ * sysdeps/unix/sysv/linux/s390/init-first.c: Likewise.
+ * sysdeps/unix/sysv/linux/s390/libc-vdso.h: Likewise.
+ * sysdeps/unix/sysv/linux/sparc/init-first.c: Likewise.
+ * sysdeps/unix/sysv/linux/sparc/libc-vdso.h: Likewise.
+ * sysdeps/unix/sysv/linux/x86/libc-vdso.h: Likewise.
+ * sysdeps/unix/sysv/linux/x86_64/init-first.c: Likewise.
+ * sysdeps/unix/sysv/linux/aarch64/sysdep.h
+ (HAVE_CLOCK_GETRES_VSYSCALL, HAVE_CLOCK_GETTIME_VSYSCALL,
+ HAVE_GETTIMEOFDAY_VSYSCALL): Define value based on kernel exported
+ name.
+ * sysdeps/unix/sysv/linux/arm/sysdep.h (HAVE_CLOCK_GETTIME_VSYSCALL,
+ HAVE_GETTIMEOFDAY_VSYSCALL): Likewise.
+ * sysdeps/unix/sysv/linux/i386/sysdep.h (HAVE_CLOCK_GETTIME_VSYSCALL,
+ HAVE_GETTIMEOFDAY_VSYSCALL): Likewise.
+ * sysdeps/unix/sysv/linux/mips/sysdep.h (HAVE_CLOCK_GETTIME_VSYSCALL,
+ HAVE_GETTIMEOFDAY_VSYSCALL): Likewise.
+ * sysdeps/unix/sysv/linux/powerpc/sysdep.h
+ (HAVE_CLOCK_GETRES_VSYSCALL, HAVE_CLOCK_GETTIME_VSYSCALL,
+ HAVE_GETCPU_VSYSCALL, HAVE_TIME_VSYSCALL, HAVE_GET_TBFREQ,
+ HAVE_SIGTRAMP_RT64, HAVE_SIGTRAMP_32, HAVE_SIGTRAMP_RT32i,
+ HAVE_GETTIMEOFDAY_VSYSCALL): Likewise.
+ * sysdeps/unix/sysv/linux/riscv/sysdep.h (HAVE_CLOCK_GETRES_VSYSCALL,
+ HAVE_CLOCK_GETTIME_VSYSCALL, HAVE_GETTIMEOFDAY_VSYSCALL,
+ HAVE_GETCPU_VSYSCALL): Likewise.
+ * sysdeps/unix/sysv/linux/s390/sysdep.h (HAVE_CLOCK_GETRES_VSYSCALL,
+ HAVE_CLOCK_GETTIME_VSYSCALL, HAVE_GETTIMEOFDAY_VSYSCALL,
+ HAVE_GETCPU_VSYSCALL): Likewise.
+ * sysdeps/unix/sysv/linux/sparc/sysdep.h (HAVE_CLOCK_GETTIME_VSYSCALL,
+ HAVE_GETTIMEOFDAY_VSYSCALL): Likewise.
+ * sysdeps/unix/sysv/linux/x86_64/sysdep.h
+ (HAVE_CLOCK_GETTIME_VSYSCALL, HAVE_GETTIMEOFDAY_VSYSCALL,
+ HAVE_GETCPU_VSYSCALL): Likewise.
+ * sysdeps/unix/sysv/linux/dl-vdso.h (VDSO_NAME, VDSO_HASH): Define to
+ invalid names if architecture does not define them.
+ (get_vdso_mangle_symbol): New symbol.
+ * sysdeps/unix/sysv/linux/init-first.c: New file.
+ * sysdeps/unix/sysv/linux/libc-vdso.h: Likewise.
+ * sysdeps/unix/sysv/linux/powerpc/init-first.c (gettimeofday,
+ clock_gettime, clock_getres, getcpu, time): Remove declaration.
+ (__libc_vdso_platform_setup_arch): Likewise and use
+ get_vdso_mangle_symbol to setup vDSO symbols.
+ (sigtramp_rt64, sigtramp32, sigtramp_rt32, get_tbfreq): Add
+ attribute_hidden.
+ * sysdeps/unix/sysv/linux/powerpc/libc-vdso.h: Likewise.
+ * sysdeps/unix/sysv/linux/sysdep-vdso.h (VDSO_SYMBOL): Remove
+ definition.
+
* sysdeps/unix/make-syscalls.sh: Make vDSO call use get_vdso_symbol.
* sysdeps/unix/sysv/linux/aarch64/gettimeofday.c (__gettimeofday):
Use get_vdso_symbol instead of _dl_vdso_vsym.
static inline int
is_sigtramp_address (void *nip)
{
-#ifdef SHARED
+#ifdef HAVE_SIGTRAMP_RT32
if (nip == VDSO_SYMBOL (sigtramp32))
return 1;
#endif
static inline int
is_sigtramp_address_rt (void * nip)
{
-#ifdef SHARED
+#ifdef HAVE_SIGTRAMP_32
if (nip == VDSO_SYMBOL (sigtramp_rt32))
return 1;
#endif
static inline int
is_sigtramp_address (void *nip)
{
-#ifdef SHARED
+#ifdef HAVE_SIGTRAMP_RT64
if (nip == VDSO_SYMBOL (sigtramp_rt64))
return 1;
#endif
# define INIT_ARCH()
libc_ifunc_hidden (__gettimeofday, __gettimeofday,
- (get_vdso_symbol ("__kernel_gettimeofday")
+ (get_vdso_symbol (HAVE_GETTIMEOFDAY_VSYSCALL)
?: __gettimeofday_vsyscall))
libc_hidden_def (__gettimeofday)
+++ /dev/null
-/* Copyright (C) 2007-2019 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
- <https://www.gnu.org/licenses/>. */
-
-#include <dl-vdso.h>
-#include <libc-vdso.h>
-
-int (*VDSO_SYMBOL(gettimeofday)) (struct timeval *, void *) attribute_hidden;
-int (*VDSO_SYMBOL(clock_gettime)) (clockid_t, struct timespec *);
-int (*VDSO_SYMBOL(clock_getres)) (clockid_t, struct timespec *);
-
-static inline void
-_libc_vdso_platform_setup (void)
-{
- void *p = get_vdso_symbol ("__kernel_gettimeofday");
- PTR_MANGLE (p);
- VDSO_SYMBOL(gettimeofday) = p;
-
- p = get_vdso_symbol ("__kernel_clock_gettime");
- PTR_MANGLE (p);
- VDSO_SYMBOL(clock_gettime) = p;
-
- p = get_vdso_symbol ("__kernel_clock_getres");
- PTR_MANGLE (p);
- VDSO_SYMBOL(clock_getres) = p;
-}
-
-#define VDSO_SETUP _libc_vdso_platform_setup
-
-#include <csu/init-first.c>
# endif
/* List of system calls which are supported as vsyscalls. */
-# define HAVE_CLOCK_GETRES_VSYSCALL 1
-# define HAVE_CLOCK_GETTIME_VSYSCALL 1
-# define HAVE_GETTIMEOFDAY_VSYSCALL 1
+# define HAVE_CLOCK_GETRES_VSYSCALL "__kernel_clock_getres"
+# define HAVE_CLOCK_GETTIME_VSYSCALL "__kernel_clock_gettime"
+# define HAVE_GETTIMEOFDAY_VSYSCALL "__kernel_gettimeofday"
/* Previously AArch64 used the generic version without the libc_hidden_def
which lead in a non existent __send symbol in libc.so. */
+++ /dev/null
-/* Initialization code run first thing by the ELF startup code. Linux/ARM.
- Copyright (C) 2015-2019 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
- <https://www.gnu.org/licenses/>. */
-
-#include <dl-vdso.h>
-#include <libc-vdso.h>
-#include <sysdep-vdso.h>
-
-int (*VDSO_SYMBOL(gettimeofday)) (struct timeval *, void *) attribute_hidden;
-int (*VDSO_SYMBOL(clock_gettime)) (clockid_t, struct timespec *);
-
-static inline void
-_libc_vdso_platform_setup (void)
-{
- void *p = get_vdso_symbol ("__vdso_gettimeofday");
- PTR_MANGLE (p);
- VDSO_SYMBOL (gettimeofday) = p;
-
- p = get_vdso_symbol ("__vdso_clock_gettime");
- PTR_MANGLE (p);
- VDSO_SYMBOL (clock_gettime) = p;
-}
-
-#define VDSO_SETUP _libc_vdso_platform_setup
-
-#include <csu/init-first.c>
+++ /dev/null
-/* VDSO function pointer declarations. Linux/ARM.
- Copyright (C) 2015-2019 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
- <https://www.gnu.org/licenses/>. */
-
-#ifndef _LIBC_VDSO_H
-#define _LIBC_VDSO_H
-
-#include <sysdep-vdso.h>
-
-extern int (*VDSO_SYMBOL(gettimeofday)) (struct timeval *, void *)
- attribute_hidden;
-extern int (*VDSO_SYMBOL(clock_gettime)) (clockid_t, struct timespec *);
-
-#endif /* _LIBC_VDSO_H */
#define VDSO_HASH 61765110
/* List of system calls which are supported as vsyscalls. */
-#define HAVE_CLOCK_GETTIME_VSYSCALL 1
-#define HAVE_GETTIMEOFDAY_VSYSCALL 1
+#define HAVE_CLOCK_GETTIME_VSYSCALL "__vdso_gettimeofday"
+#define HAVE_GETTIMEOFDAY_VSYSCALL "__vdso_clock_gettime"
#define LOAD_ARGS_0()
#define ASM_ARGS_0
#ifndef _DL_VDSO_H
#define _DL_VDSO_H 1
-#include <assert.h>
#include <ldsodefs.h>
#include <dl-hash.h>
-#include <libc-vdso.h>
/* Functions for resolving symbols in the VDSO link map. */
extern void *_dl_vdso_vsym (const char *name,
const struct r_found_version *version)
attribute_hidden;
+/* If the architecture support vDSO it should define which is the expected
+ kernel version and hash value through both VDSO_NAME and VDSO_HASH
+ (usually defined at architecture sysdep.h). */
+
+#ifndef VDSO_NAME
+# define VDSO_NAME "LINUX_0.0"
+#endif
+#ifndef VDSO_HASH
+# define VDSO_HASH 0
+#endif
+
static inline void *
get_vdso_symbol (const char *symbol)
{
return _dl_vdso_vsym (symbol, &rfv);
}
+static inline void *
+get_vdso_mangle_symbol (const char *symbol)
+{
+ void *vdsop = get_vdso_symbol (symbol);
+ PTR_MANGLE (vdsop);
+ return vdsop;
+}
+
#endif /* dl-vdso.h */
+++ /dev/null
-/* Initialization code run first thing by the ELF startup code. Linux/i386.
- Copyright (C) 2015-2019 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
- <https://www.gnu.org/licenses/>. */
-
-#include <time.h>
-#include <sysdep.h>
-#include <dl-vdso.h>
-#include <sysdep-vdso.h>
-
-long int (*VDSO_SYMBOL (clock_gettime)) (clockid_t, struct timespec *)
- attribute_hidden;
-
-static long int
-clock_gettime_syscall (clockid_t id, struct timespec *tp)
-{
- INTERNAL_SYSCALL_DECL (err);
- return INTERNAL_SYSCALL (clock_gettime, err, 2, id, tp);
-}
-
-static inline void
-__vdso_platform_setup (void)
-{
- void *p = get_vdso_symbol ("__vdso_clock_gettime");
- if (p == NULL)
- p = clock_gettime_syscall;
- PTR_MANGLE (p);
- VDSO_SYMBOL (clock_gettime) = p;
-}
-
-#define VDSO_SETUP __vdso_platform_setup
-
-#include <csu/init-first.c>
# define VDSO_HASH 61765110
/* List of system calls which are supported as vsyscalls. */
-# define HAVE_CLOCK_GETTIME_VSYSCALL 1
-# define HAVE_GETTIMEOFDAY_VSYSCALL 1
+# define HAVE_CLOCK_GETTIME_VSYSCALL "__vdso_clock_gettime"
+# define HAVE_GETTIMEOFDAY_VSYSCALL "__vdso_gettimeofday"
/* Define a macro which expands inline into the wrapper code for a system
call. This use is for internal calls that do not need to handle errors
--- /dev/null
+/* vDSO internal symbols. Linux generic version.
+ Copyright (C) 2019 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 <dl-vdso.h>
+#include <libc-vdso.h>
+
+/* vDSO symbol used on clock_gettime implementation. */
+#ifdef HAVE_CLOCK_GETTIME_VSYSCALL
+int (*VDSO_SYMBOL(clock_gettime)) (clockid_t, struct timespec *)
+ attribute_hidden;
+#endif
+/* vDSO symbol used on clock_getres implementation. */
+#ifdef HAVE_CLOCK_GETRES_VSYSCALL
+int (*VDSO_SYMBOL(clock_getres)) (clockid_t, struct timespec *)
+ attribute_hidden;
+#endif
+/* vDSO symbol used on gettimeofday implementation. */
+#ifdef HAVE_GETTIMEOFDAY_VSYSCALL
+int (*VDSO_SYMBOL (gettimeofday)) (struct timeval *, void *)
+ attribute_hidden;
+#endif
+/* vDSO symbol used on GNU extension getcpu implementation. */
+#ifdef HAVE_GETCPU_VSYSCALL
+long int (*VDSO_SYMBOL(getcpu)) (unsigned *, unsigned *, void *)
+ attribute_hidden;
+#endif
+/* vDSO symbol used on time implementation. */
+#ifdef HAVE_TIME_VSYSCALL
+time_t (*VDSO_SYMBOL(time)) (time_t *) attribute_hidden;
+#endif
+
+static inline void
+__libc_vdso_platform_setup (void)
+{
+#ifdef HAVE_CLOCK_GETTIME_VSYSCALL
+ VDSO_SYMBOL(clock_gettime)
+ = get_vdso_mangle_symbol (HAVE_CLOCK_GETTIME_VSYSCALL);
+#endif
+
+#ifdef HAVE_CLOCK_GETRES_VSYSCALL
+ VDSO_SYMBOL(clock_getres)
+ = get_vdso_mangle_symbol (HAVE_CLOCK_GETRES_VSYSCALL);
+#endif
+
+#ifdef HAVE_GETTIMEOFDAY_VSYSCALL
+ VDSO_SYMBOL(gettimeofday)
+ = get_vdso_mangle_symbol (HAVE_GETTIMEOFDAY_VSYSCALL);
+#endif
+
+#ifdef HAVE_GETCPU_VSYSCALL
+ VDSO_SYMBOL(getcpu) = get_vdso_mangle_symbol (HAVE_GETCPU_VSYSCALL);
+#endif
+
+#ifdef HAVE_TIME_VSYSCALL
+ VDSO_SYMBOL(time) = get_vdso_mangle_symbol (HAVE_TIME_VSYSCALL);
+#endif
+
+#ifdef VDSO_SETUP_ARCH
+ VDSO_SETUP_ARCH ();
+#endif
+}
+
+#define VDSO_SETUP __libc_vdso_platform_setup
+
+#include <csu/init-first.c>
#ifndef _LIBC_VDSO_H
#define _LIBC_VDSO_H
-#include <sysdep.h>
-#include <sysdep-vdso.h>
-
-extern int (*VDSO_SYMBOL(gettimeofday)) (struct timeval *, void *)
- attribute_hidden;
-extern int (*VDSO_SYMBOL(clock_gettime)) (clockid_t, struct timespec *);
-extern int (*VDSO_SYMBOL(clock_getres)) (clockid_t, struct timespec *);
+#define VDSO_SYMBOL(__name) __vdso_##__name
+
+#ifdef HAVE_CLOCK_GETTIME_VSYSCALL
+extern int (*VDSO_SYMBOL(clock_gettime)) (clockid_t, struct timespec *)
+ attribute_hidden;
+#endif
+#ifdef HAVE_CLOCK_GETRES_VSYSCALL
+extern int (*VDSO_SYMBOL(clock_getres)) (clockid_t, struct timespec *)
+ attribute_hidden;
+#endif
+#ifdef HAVE_GETTIMEOFDAY_VSYSCALL
+extern int (*VDSO_SYMBOL (gettimeofday)) (struct timeval *, void *)
+ attribute_hidden;
+#endif
+#ifdef HAVE_GETCPU_VSYSCALL
+extern long int (*VDSO_SYMBOL(getcpu)) (unsigned *, unsigned *, void *)
+ attribute_hidden;
+#endif
+#ifdef HAVE_TIME_VSYSCALL
+extern time_t (*VDSO_SYMBOL(time)) (time_t *) attribute_hidden;
+#endif
#endif /* _LIBC_VDSO_H */
+++ /dev/null
-/* Initialization code run first thing by the ELF startup code.
- Copyright (C) 2016-2019 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
- <https://www.gnu.org/licenses/>. */
-
-#include <dl-vdso.h>
-#include <libc-vdso.h>
-
-int (*VDSO_SYMBOL(gettimeofday)) (struct timeval *, void *) attribute_hidden;
-int (*VDSO_SYMBOL(clock_gettime)) (clockid_t, struct timespec *);
-
-static inline void
-_libc_vdso_platform_setup (void)
-{
- void *p = get_vdso_symbol ("__vdso_gettimeofday");
- PTR_MANGLE (p);
- VDSO_SYMBOL (gettimeofday) = p;
-
- p = get_vdso_symbol ("__vdso_clock_gettime");
- PTR_MANGLE (p);
- VDSO_SYMBOL (clock_gettime) = p;
-}
-
-#define VDSO_SETUP _libc_vdso_platform_setup
-
-#include <csu/init-first.c>
+++ /dev/null
-/* VDSO function pointer declarations.
- Copyright (C) 2016-2019 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
- <https://www.gnu.org/licenses/>. */
-
-#ifndef _LIBC_VDSO_H
-#define _LIBC_VDSO_H
-
-#include <sysdep-vdso.h>
-
-extern int (*VDSO_SYMBOL(gettimeofday)) (struct timeval *, void *)
- attribute_hidden;
-extern int (*VDSO_SYMBOL(clock_gettime)) (clockid_t, struct timespec *);
-
-#endif /* _LIBC_VDSO_H */
#define VDSO_HASH 61765110
/* List of system calls which are supported as vsyscalls. */
-#define HAVE_CLOCK_GETTIME_VSYSCALL 1
-#define HAVE_GETTIMEOFDAY_VSYSCALL 1
+#define HAVE_CLOCK_GETTIME_VSYSCALL "__vdso_gettimeofday"
+#define HAVE_GETTIMEOFDAY_VSYSCALL "__vdso_clock_gettime"
# include <dl-vdso.h>
# include <libc-vdso.h>
# include <dl-machine.h>
+# include <sysdep.h>
# ifndef __powerpc64__
# undef __gettimeofday
}
# define INIT_ARCH() \
- void *vdso_gettimeofday = get_vdso_symbol ("__kernel_gettimeofday")
+ void *vdso_gettimeofday = get_vdso_symbol (HAVE_GETTIMEOFDAY_VSYSCALL)
/* If the vDSO is not available we fall back syscall. */
libc_ifunc_hidden (__redirect___gettimeofday, __gettimeofday,
#include <dl-vdso.h>
#include <libc-vdso.h>
-int (*VDSO_SYMBOL(gettimeofday)) (struct timeval *, void *)
- attribute_hidden;
-int (*VDSO_SYMBOL(clock_gettime)) (clockid_t, struct timespec *);
-int (*VDSO_SYMBOL(clock_getres)) (clockid_t, struct timespec *);
-unsigned long long (*VDSO_SYMBOL(get_tbfreq)) (void);
-int (*VDSO_SYMBOL(getcpu)) (unsigned *, unsigned *);
-time_t (*VDSO_SYMBOL(time)) (time_t *);
-
+unsigned long long (*VDSO_SYMBOL(get_tbfreq)) (void) attribute_hidden;
#if defined(__PPC64__) || defined(__powerpc64__)
-void *VDSO_SYMBOL(sigtramp_rt64);
+void *VDSO_SYMBOL(sigtramp_rt64) attribute_hidden;
#else
-void *VDSO_SYMBOL(sigtramp32);
-void *VDSO_SYMBOL(sigtramp_rt32);
+void *VDSO_SYMBOL(sigtramp32) attribute_hidden;
+void *VDSO_SYMBOL(sigtramp_rt32) attribute_hidden;
#endif
static inline void
-_libc_vdso_platform_setup (void)
+__libc_vdso_platform_setup_arch (void)
{
- void *p = get_vdso_symbol ("__kernel_gettimeofday");
- PTR_MANGLE (p);
- VDSO_SYMBOL (gettimeofday) = p;
-
- p = get_vdso_symbol ("__kernel_clock_gettime");
- PTR_MANGLE (p);
- VDSO_SYMBOL (clock_gettime) = p;
-
- p = get_vdso_symbol ("__kernel_clock_getres");
- PTR_MANGLE (p);
- VDSO_SYMBOL (clock_getres) = p;
-
- p = get_vdso_symbol ("__kernel_get_tbfreq");
- PTR_MANGLE (p);
- VDSO_SYMBOL (get_tbfreq) = p;
-
- p = get_vdso_symbol ("__kernel_getcpu");
- PTR_MANGLE (p);
- VDSO_SYMBOL (getcpu) = p;
-
- p = get_vdso_symbol ("__kernel_time");
- PTR_MANGLE (p);
- VDSO_SYMBOL (time) = p;
+ VDSO_SYMBOL (get_tbfreq) = get_vdso_mangle_symbol (HAVE_GET_TBFREQ);
/* PPC64 uses only one signal trampoline symbol, while PPC32 will use
two depending if SA_SIGINFO is used (__kernel_sigtramp_rt32) or not
There is no need to pointer mangle these symbol because they will
used only for pointer comparison. */
#if defined(__PPC64__) || defined(__powerpc64__)
- VDSO_SYMBOL(sigtramp_rt64) = get_vdso_symbol ("__kernel_sigtramp_rt64");
+ VDSO_SYMBOL(sigtramp_rt64) = get_vdso_symbol (HAVE_SIGTRAMP_RT64);
#else
- VDSO_SYMBOL(sigtramp32) = get_vdso_symbol ("__kernel_sigtramp32");
- VDSO_SYMBOL(sigtramp_rt32) = get_vdso_symbol ("__kernel_sigtramp_rt32");
+ VDSO_SYMBOL(sigtramp32) = get_vdso_symbol (HAVE_SIGTRAMP_32);
+ VDSO_SYMBOL(sigtramp_rt32) = get_vdso_symbol (HAVE_SIGTRAMP_RT32);
#endif
}
-#define VDSO_SETUP _libc_vdso_platform_setup
+#define VDSO_SETUP_ARCH __libc_vdso_platform_setup_arch
-#include <csu/init-first.c>
+#include <sysdeps/unix/sysv/linux/init-first.c>
<https://www.gnu.org/licenses/>. */
-#ifndef _LIBC_VDSO_H
-#define _LIBC_VDSO_H
+#ifndef _LIBC_POWERPC_VDSO_H
+#define _LIBC_POWERPC_VDSO_H
#include <sysdep.h>
#include <sysdep-vdso.h>
+#include_next <libc-vdso.h>
-extern int (*VDSO_SYMBOL(gettimeofday)) (struct timeval *, void *)
- attribute_hidden;
-extern int (*VDSO_SYMBOL(clock_gettime)) (clockid_t, struct timespec *);
-extern int (*VDSO_SYMBOL(clock_getres)) (clockid_t, struct timespec *);
extern unsigned long long (*VDSO_SYMBOL(get_tbfreq)) (void);
-extern int (*VDSO_SYMBOL(getcpu)) (unsigned *, unsigned *);
-extern time_t (*VDSO_SYMBOL(time)) (time_t *);
-
#if defined(__PPC64__) || defined(__powerpc64__)
extern void *VDSO_SYMBOL(sigtramp_rt64);
#else
#define VDSO_HASH 123718565
/* List of system calls which are supported as vsyscalls. */
-#define HAVE_CLOCK_GETRES_VSYSCALL 1
-#define HAVE_CLOCK_GETTIME_VSYSCALL 1
-#define HAVE_GETCPU_VSYSCALL 1
+#define HAVE_CLOCK_GETRES_VSYSCALL "__kernel_clock_getres"
+#define HAVE_CLOCK_GETTIME_VSYSCALL "__kernel_clock_gettime"
+#define HAVE_GETCPU_VSYSCALL "__kernel_getcpu"
+#define HAVE_TIME_VSYSCALL "__kernel_time"
+#define HAVE_GETTIMEOFDAY_VSYSCALL "__kernel_gettimeofday"
+#define HAVE_GET_TBFREQ "__kernel_get_tbfreq"
+
+#if defined(__PPC64__) || defined(__powerpc64__)
+# define HAVE_SIGTRAMP_RT64 "__kernel_sigtramp_rt64"
+#else
+# define HAVE_SIGTRAMP_32 "__kernel_sigtramp32"
+# define HAVE_SIGTRAMP_RT32 "__kernel_sigtramp_rt32"
+#endif
}
# define INIT_ARCH() \
- void *vdso_time = get_vdso_symbol ("__kernel_time");
+ void *vdso_time = get_vdso_symbol (HAVE_TIME_VSYSCALL);
/* If the vDSO is not available we fall back to the syscall. */
libc_ifunc_hidden (__redirect_time, time,
+++ /dev/null
-/* RISC-V VDSO initialization
- Copyright (C) 2017-2019 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
- <https://www.gnu.org/licenses/>. */
-
-#include <dl-vdso.h>
-#include <libc-vdso.h>
-
-long int (*VDSO_SYMBOL (getcpu)) (unsigned int *, unsigned int *, void *)
- attribute_hidden;
-long int (*VDSO_SYMBOL (gettimeofday)) (struct timeval *, void *)
- attribute_hidden;
-long int (*VDSO_SYMBOL (clock_gettime)) (clockid_t, struct timespec *)
- attribute_hidden;
-long int (*VDSO_SYMBOL (clock_getres)) (clockid_t, struct timespec *)
- attribute_hidden;
-
-static inline void
-_libc_vdso_platform_setup (void)
-{
- void *p = get_vdso_symbol ("__vdso_getcpu");
- PTR_MANGLE (p);
- VDSO_SYMBOL (getcpu) = p;
-
- p = get_vdso_symbol ("__vdso_gettimeofday");
- PTR_MANGLE (p);
- VDSO_SYMBOL (gettimeofday) = p;
-
- p = get_vdso_symbol ("__vdso_clock_gettime");
- PTR_MANGLE (p);
- VDSO_SYMBOL (clock_gettime) = p;
-
- p = get_vdso_symbol ("__vdso_clock_getres");
- PTR_MANGLE (p);
- VDSO_SYMBOL (clock_getres) = p;
-}
-
-#define VDSO_SETUP _libc_vdso_platform_setup
-
-#include <csu/init-first.c>
+++ /dev/null
-/* RISC-V VDSO function declarations
- Copyright (C) 2017-2019 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
- <https://www.gnu.org/licenses/>. */
-
-#ifndef _LIBC_VDSO_H
-#define _LIBC_VDSO_H
-
-#include <sysdep-vdso.h>
-
-extern long int (*VDSO_SYMBOL (getcpu)) (unsigned int *, unsigned int *, void *)
- attribute_hidden;
-extern long int (*VDSO_SYMBOL (gettimeofday)) (struct timeval *, void *)
- attribute_hidden;
-extern long int (*VDSO_SYMBOL (clock_gettime)) (clockid_t, struct timespec *)
- attribute_hidden;
-extern long int (*VDSO_SYMBOL (clock_getres)) (clockid_t, struct timespec *)
- attribute_hidden;
-
-#endif /* _LIBC_VDSO_H */
# define VDSO_HASH 182943605
/* List of system calls which are supported as vsyscalls. */
-# define HAVE_CLOCK_GETRES_VSYSCALL 1
-# define HAVE_CLOCK_GETTIME_VSYSCALL 1
-# define HAVE_GETTIMEOFDAY_VSYSCALL 1
-# define HAVE_GETCPU_VSYSCALL 1
+# define HAVE_CLOCK_GETRES_VSYSCALL "__vdso_clock_getres"
+# define HAVE_CLOCK_GETTIME_VSYSCALL "__vdso_clock_gettime"
+# define HAVE_GETTIMEOFDAY_VSYSCALL "__vdso_gettimeofday"
+# define HAVE_GETCPU_VSYSCALL "__vdso_getcpu"
/* Define a macro which expands into the inline wrapper code for a system
call. */
+++ /dev/null
-/* Initialization code run first thing by the ELF startup code. Linux/s390.
- Copyright (C) 2008-2019 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
- <https://www.gnu.org/licenses/>. */
-
-#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__ ((nocommon));
-
-long int (*VDSO_SYMBOL(clock_getres)) (clockid_t, struct timespec *)
- __attribute__ ((nocommon));
-
-long int (*VDSO_SYMBOL(getcpu)) (unsigned *, unsigned *, void *)
- attribute_hidden;
-
-static inline void
-_libc_vdso_platform_setup (void)
-{
- void *p = get_vdso_symbol ("__kernel_gettimeofday");
- PTR_MANGLE (p);
- VDSO_SYMBOL (gettimeofday) = p;
-
- p = get_vdso_symbol ("__kernel_clock_gettime");
- PTR_MANGLE (p);
- VDSO_SYMBOL (clock_gettime) = p;
-
- p = get_vdso_symbol ("__kernel_clock_getres");
- PTR_MANGLE (p);
- VDSO_SYMBOL (clock_getres) = p;
-
- p = get_vdso_symbol ("__kernel_getcpu");
- PTR_MANGLE (p);
- VDSO_SYMBOL (getcpu) = p;
-}
-
-#define VDSO_SETUP _libc_vdso_platform_setup
-
-#include <csu/init-first.c>
+++ /dev/null
-/* Resolve function pointers to VDSO functions.
- Copyright (C) 2008-2019 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
- <https://www.gnu.org/licenses/>. */
-
-
-#ifndef _LIBC_VDSO_H
-#define _LIBC_VDSO_H
-
-#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 *);
-
-extern long int (*VDSO_SYMBOL(clock_getres)) (clockid_t, struct timespec *);
-
-extern long int (*VDSO_SYMBOL(getcpu)) (unsigned *, unsigned *, void *)
- attribute_hidden;
-
-#endif /* _LIBC_VDSO_H */
#define VDSO_HASH 123718585
/* List of system calls which are supported as vsyscalls. */
-#define HAVE_CLOCK_GETRES_VSYSCALL 1
-#define HAVE_CLOCK_GETTIME_VSYSCALL 1
-#define HAVE_GETTIMEOFDAY_VSYSCALL 1
-#define HAVE_GETCPU_VSYSCALL 1
+#define HAVE_CLOCK_GETRES_VSYSCALL "__kernel_clock_getres"
+#define HAVE_CLOCK_GETTIME_VSYSCALL "__kernel_clock_gettime"
+#define HAVE_GETTIMEOFDAY_VSYSCALL "__kernel_gettimeofday"
+#define HAVE_GETCPU_VSYSCALL "__kernel_getcpu"
+++ /dev/null
-/* SPARC VDSO initialization
- Copyright (C) 2018-2019 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
- <https://www.gnu.org/licenses/>. */
-
-#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)
-{
- void *p = get_vdso_symbol ("__vdso_gettimeofday");
- PTR_MANGLE (p);
- VDSO_SYMBOL (gettimeofday) = p;
-
- p = get_vdso_symbol ("__vdso_clock_gettime");
- PTR_MANGLE (p);
- VDSO_SYMBOL (clock_gettime) = p;
-}
-
-#define VDSO_SETUP _libc_vdso_platform_setup
-
-#include <csu/init-first.c>
+++ /dev/null
-/* VDSO function pointer declarations.
- Copyright (C) 2018-2019 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
- <https://www.gnu.org/licenses/>. */
-
-#ifndef _LIBC_VDSO_H
-#define _LIBC_VDSO_H
-
-#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 /* _LIBC_VDSO_H */
# define VDSO_HASH 61765110
/* List of system calls which are supported as vsyscalls. */
-# define HAVE_CLOCK_GETTIME_VSYSCALL 1
-# define HAVE_GETTIMEOFDAY_VSYSCALL 1
+# define HAVE_CLOCK_GETTIME_VSYSCALL "__vdso_clock_gettime"
+# define HAVE_GETTIMEOFDAY_VSYSCALL "__vdso_gettimeofday"
#undef INLINE_SYSCALL
#define INLINE_SYSCALL(name, nr, args...) \
#ifndef SYSDEP_VDSO_LINUX_H
# define SYSDEP_VDSO_LINUX_H
-#define VDSO_SYMBOL(__name) __vdso_##__name
+#include <dl-vdso.h>
#ifndef INTERNAL_VSYSCALL_CALL
# define INTERNAL_VSYSCALL_CALL(funcptr, err, nr, args...) \
+++ /dev/null
-/* Resolve function pointers to VDSO functions.
- Copyright (C) 2005-2019 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
- <https://www.gnu.org/licenses/>. */
-
-#ifndef _LIBC_VDSO_H
-#define _LIBC_VDSO_H
-
-#include <time.h>
-#include <sys/time.h>
-
-#include <sysdep-vdso.h>
-
-extern long int (*VDSO_SYMBOL(clock_gettime)) (clockid_t, struct timespec *)
- attribute_hidden;
-
-extern long int (*VDSO_SYMBOL(getcpu)) (unsigned *, unsigned *, void *)
- attribute_hidden;
-
-#endif /* _LIBC_VDSO_H */
+++ /dev/null
-/* Initialization code run first thing by the ELF startup code. Linux/x86-64.
- Copyright (C) 2007-2019 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
- <https://www.gnu.org/licenses/>. */
-
-#include <time.h>
-#include <sysdep.h>
-#include <dl-vdso.h>
-#include <libc-vdso.h>
-
-long int (*VDSO_SYMBOL(clock_gettime)) (clockid_t, struct timespec *)
- attribute_hidden;
-long int (*VDSO_SYMBOL(getcpu)) (unsigned *, unsigned *, void *)
- attribute_hidden;
-
-extern __typeof (clock_gettime) __syscall_clock_gettime attribute_hidden;
-
-
-static inline void
-__vdso_platform_setup (void)
-{
- void *p = get_vdso_symbol ("__vdso_clock_gettime");
- if (p == NULL)
- p = __syscall_clock_gettime;
- PTR_MANGLE (p);
- VDSO_SYMBOL(clock_gettime) = p;
-
- p = get_vdso_symbol ("__vdso_getcpu");
- PTR_MANGLE (p);
- VDSO_SYMBOL(getcpu) = p;
-}
-
-#define VDSO_SETUP __vdso_platform_setup
-
-#include <csu/init-first.c>
# define VDSO_HASH 61765110
/* List of system calls which are supported as vsyscalls. */
-# define HAVE_CLOCK_GETTIME_VSYSCALL 1
-# define HAVE_GETTIMEOFDAY_VSYSCALL 1
-# define HAVE_GETCPU_VSYSCALL 1
+# define HAVE_CLOCK_GETTIME_VSYSCALL "__vdso_clock_gettime"
+# define HAVE_GETTIMEOFDAY_VSYSCALL "__vdso_gettimeofday"
+# define HAVE_GETCPU_VSYSCALL "__vdso_getcpu"
# define SINGLE_THREAD_BY_GLOBAL 1
projects / thirdparty / glibc.git / commitdiff
