cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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parse_vdso.h (1009B)

      1/* SPDX-License-Identifier: GPL-2.0-only */
      2
      3#ifndef PARSE_VDSO_H
      4#define PARSE_VDSO_H
      5
      6#include <stdint.h>
      7
      8/*
      9 * To use this vDSO parser, first call one of the vdso_init_* functions.
     10 * If you've already parsed auxv, then pass the value of AT_SYSINFO_EHDR
     11 * to vdso_init_from_sysinfo_ehdr.  Otherwise pass auxv to vdso_init_from_auxv.
     12 * Then call vdso_sym for each symbol you want.  For example, to look up
     13 * gettimeofday on x86_64, use:
     14 *
     15 *     <some pointer> = vdso_sym("LINUX_2.6", "gettimeofday");
     16 * or
     17 *     <some pointer> = vdso_sym("LINUX_2.6", "__vdso_gettimeofday");
     18 *
     19 * vdso_sym will return 0 if the symbol doesn't exist or if the init function
     20 * failed or was not called.  vdso_sym is a little slow, so its return value
     21 * should be cached.
     22 *
     23 * vdso_sym is threadsafe; the init functions are not.
     24 *
     25 * These are the prototypes:
     26 */
     27void *vdso_sym(const char *version, const char *name);
     28void vdso_init_from_sysinfo_ehdr(uintptr_t base);
     29void vdso_init_from_auxv(void *auxv);
     30
     31#endif