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7f33b09c65
Linux-specific code that is required for maintaining ABI compatibility.
This doesn't contain the actual system call interface, that is split out
in order to avoid having a patch that's too big.
2018-01-29 Palmer Dabbelt <palmer@sifive.com>
* sysdeps/riscv/nptl/pthread-offsets.h: New file.
* sysdeps/riscv/nptl/pthreaddef.h: Likewise.
* sysdeps/unix/sysv/linux/riscv/bits/fcntl.h: Likewise.
* sysdeps/unix/sysv/linux/riscv/bits/mman.h: Likewise.
* sysdeps/unix/sysv/linux/riscv/bits/sigcontext.h: Likewise.
* sysdeps/unix/sysv/linux/riscv/dl-cache.h: Likewise.
* sysdeps/unix/sysv/linux/riscv/flush-icache.c: Likewise.
* sysdeps/unix/sysv/linux/riscv/getcontext.S: Likewise.
* sysdeps/unix/sysv/linux/riscv/init-first.c: Likewise.
* sysdeps/unix/sysv/linux/riscv/libc-vdso.h: Likewise.
* sysdeps/unix/sysv/linux/riscv/makecontext.c: Likewise.
* sysdeps/unix/sysv/linux/riscv/readelflib.c: Likewise.
* sysdeps/unix/sysv/linux/riscv/register-dump.h: Likewise.
* sysdeps/unix/sysv/linux/riscv/setcontext.S: Likewise.
* sysdeps/unix/sysv/linux/riscv/sigcontextinfo.h: Likewise.
* sysdeps/unix/sysv/linux/riscv/swapcontext.S: Likewise.
* sysdeps/unix/sysv/linux/riscv/sys/cachectl.h: Likewise.
* sysdeps/unix/sysv/linux/riscv/sys/procfs.h: Likewise.
* sysdeps/unix/sysv/linux/riscv/sys/ucontext.h: Likewise.
* sysdeps/unix/sysv/linux/riscv/sys/user.h: Likewise.
* sysdeps/unix/sysv/linux/riscv/ucontext-macros.h: Likewise.
* sysdeps/unix/sysv/linux/riscv/ucontext_i.sym: Likewise.
59 lines
1.9 KiB
C
59 lines
1.9 KiB
C
/* RISC-V VDSO initialization
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Copyright (C) 2017-2018 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 2.1 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#ifdef SHARED
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# include <dl-vdso.h>
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# include <libc-vdso.h>
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long int (*VDSO_SYMBOL (getcpu)) (unsigned int *, unsigned int *, void *)
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attribute_hidden;
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long int (*VDSO_SYMBOL (gettimeofday)) (struct timeval *, void *)
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attribute_hidden;
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long int (*VDSO_SYMBOL (clock_gettime)) (clockid_t, struct timespec *)
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attribute_hidden;
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long int (*VDSO_SYMBOL (clock_getres)) (clockid_t, struct timespec *)
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attribute_hidden;
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static inline void
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_libc_vdso_platform_setup (void)
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{
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PREPARE_VERSION_KNOWN (linux_version, LINUX_4_15);
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void *p = _dl_vdso_vsym ("__vdso_getcpu", &linux_version);
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PTR_MANGLE (p);
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VDSO_SYMBOL (getcpu) = p;
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p = _dl_vdso_vsym ("__vdso_gettimeofday", &linux_version);
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PTR_MANGLE (p);
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VDSO_SYMBOL (gettimeofday) = p;
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p = _dl_vdso_vsym ("__vdso_clock_gettime", &linux_version);
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PTR_MANGLE (p);
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VDSO_SYMBOL (clock_gettime) = p;
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p = _dl_vdso_vsym ("__vdso_clock_getres", &linux_version);
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PTR_MANGLE (p);
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VDSO_SYMBOL (clock_getres) = p;
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}
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# define VDSO_SETUP _libc_vdso_platform_setup
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#endif
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#include <csu/init-first.c>
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