Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / arch / x86 / tools / relocs_common.c

diff --git a/kernel/arch/x86/tools/relocs_common.c b/kernel/arch/x86/tools/relocs_common.c
new file mode 100644 (file)
index 0000000..acab636
--- /dev/null
+++ b/kernel/arch/x86/tools/relocs_common.c
@@ -0,0 +1,84 @@
+#include "relocs.h"
+
+void die(char *fmt, ...)
+{
+       va_list ap;
+       va_start(ap, fmt);
+       vfprintf(stderr, fmt, ap);
+       va_end(ap);
+       exit(1);
+}
+
+static void usage(void)
+{
+       die("relocs [--abs-syms|--abs-relocs|--reloc-info|--text|--realmode]" \
+           " vmlinux\n");
+}
+
+int main(int argc, char **argv)
+{
+       int show_absolute_syms, show_absolute_relocs, show_reloc_info;
+       int as_text, use_real_mode;
+       const char *fname;
+       FILE *fp;
+       int i;
+       unsigned char e_ident[EI_NIDENT];
+
+       show_absolute_syms = 0;
+       show_absolute_relocs = 0;
+       show_reloc_info = 0;
+       as_text = 0;
+       use_real_mode = 0;
+       fname = NULL;
+       for (i = 1; i < argc; i++) {
+               char *arg = argv[i];
+               if (*arg == '-') {
+                       if (strcmp(arg, "--abs-syms") == 0) {
+                               show_absolute_syms = 1;
+                               continue;
+                       }
+                       if (strcmp(arg, "--abs-relocs") == 0) {
+                               show_absolute_relocs = 1;
+                               continue;
+                       }
+                       if (strcmp(arg, "--reloc-info") == 0) {
+                               show_reloc_info = 1;
+                               continue;
+                       }
+                       if (strcmp(arg, "--text") == 0) {
+                               as_text = 1;
+                               continue;
+                       }
+                       if (strcmp(arg, "--realmode") == 0) {
+                               use_real_mode = 1;
+                               continue;
+                       }
+               }
+               else if (!fname) {
+                       fname = arg;
+                       continue;
+               }
+               usage();
+       }
+       if (!fname) {
+               usage();
+       }
+       fp = fopen(fname, "r");
+       if (!fp) {
+               die("Cannot open %s: %s\n", fname, strerror(errno));
+       }
+       if (fread(&e_ident, 1, EI_NIDENT, fp) != EI_NIDENT) {
+               die("Cannot read %s: %s", fname, strerror(errno));
+       }
+       rewind(fp);
+       if (e_ident[EI_CLASS] == ELFCLASS64)
+               process_64(fp, use_real_mode, as_text,
+                          show_absolute_syms, show_absolute_relocs,
+                          show_reloc_info);
+       else
+               process_32(fp, use_real_mode, as_text,
+                          show_absolute_syms, show_absolute_relocs,
+                          show_reloc_info);
+       fclose(fp);
+       return 0;
+}