net/bnxt: remove unused macro
[dpdk.git] / lib / librte_eal / common / eal_common_cpuflags.c
index a096675..dc5f75d 100644 (file)
  * Copyright(c) 2010-2014 Intel Corporation
  */
 
-#include <elf.h>
-#include <fcntl.h>
 #include <stdio.h>
-#include <string.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-#if defined(__GLIBC__) && defined(__GLIBC_PREREQ)
-#if __GLIBC_PREREQ(2, 16)
-#include <sys/auxv.h>
-#define HAS_AUXV 1
-#endif
-#endif
 
 #include <rte_common.h>
 #include <rte_cpuflags.h>
 
-#ifndef HAS_AUXV
-static unsigned long
-getauxval(unsigned long type)
-{
-       errno = ENOTSUP;
-       return 0;
-}
-#endif
-
-#ifdef RTE_ARCH_64
-typedef Elf64_auxv_t Internal_Elfx_auxv_t;
-#else
-typedef Elf32_auxv_t Internal_Elfx_auxv_t;
-#endif
-
-
-/**
- * Provides a method for retrieving values from the auxiliary vector and
- * possibly running a string comparison.
- *
- * @return Always returns a result.  When the result is 0, check errno
- * to see if an error occurred during processing.
- */
-static unsigned long
-_rte_cpu_getauxval(unsigned long type, const char *str)
-{
-       unsigned long val;
-
-       errno = 0;
-       val = getauxval(type);
-
-       if (!val && (errno == ENOTSUP || errno == ENOENT)) {
-               int auxv_fd = open("/proc/self/auxv", O_RDONLY);
-               Internal_Elfx_auxv_t auxv;
-
-               if (auxv_fd == -1)
-                       return 0;
-
-               errno = ENOENT;
-               while (read(auxv_fd, &auxv, sizeof(auxv)) == sizeof(auxv)) {
-                       if (auxv.a_type == type) {
-                               errno = 0;
-                               val = auxv.a_un.a_val;
-                               if (str)
-                                       val = strcmp((const char *)val, str);
-                               break;
-                       }
-               }
-               close(auxv_fd);
-       }
-
-       return val;
-}
-
-unsigned long
-rte_cpu_getauxval(unsigned long type)
-{
-       return _rte_cpu_getauxval(type, NULL);
-}
-
-int
-rte_cpu_strcmp_auxval(unsigned long type, const char *str)
-{
-       return _rte_cpu_getauxval(type, str);
-}
-
-/**
- * Checks if the machine is adequate for running the binary. If it is not, the
- * program exits with status 1.
- */
-void
-rte_cpu_check_supported(void)
-{
-       if (!rte_cpu_is_supported())
-               exit(1);
-}
-
 int
 rte_cpu_is_supported(void)
 {