ref: 620dc383f44dc5d3057809993b834223720aae91
parent: 0665b2980f119a119f4c158a7d82267c640f953f
author: Roberto E. Vargas Caballero <k0ga@shike2.com>
date: Mon Nov 27 15:23:06 EST 2017
[objdump] Add printsymbols() This function prints all the symbols defined in the object file.
--- a/objdump/main.c
+++ b/objdump/main.c
@@ -20,7 +20,7 @@
if (off < SIZE_MAX) {for (n = off; n < strsiz && strings[n]; ++n)
;
- if (n != strsiz)
+ if (n < strsiz)
return &strings[off];
}
fprintf(stderr, "objdump: wrong string offset %lu\n", off);
@@ -95,6 +95,33 @@
return 0;
}
+static int
+printsymbols(struct myrohdr *hdr, FILE *fp)
+{+ size_t n, i;
+ struct myrosym sym;
+
+ puts("symbols:");+ n = hdr->symsize / MYROSYM_SIZ;
+ for (i = 0; i < n; ++i) {+ if (rdmyrosym(fp, &sym) < 0)
+ return -1;
+ printf("\tname: %lu (\"%s\")\n"+ "\ttype: %lu (\"%s\")\n"
+ "\tsection: %u\n"
+ "\tflags: %x\n"
+ "\toffset: %llu\n"
+ "\tlength: %llu\n\n",
+ sym.name, getstring(sym.name),
+ sym.type, getstring(sym.type),
+ sym.section,
+ sym.flags,
+ sym.offset,
+ sym.len);
+ }
+ return 0;
+}
+
int
main(int argc, char *argv[])
{@@ -112,7 +139,8 @@
if (rdmyrohdr(fp, &hdr) < 0)
goto wrong_file;
if (hdr.strsize > SIZE_MAX ||
- hdr.secsize > SIZE_MAX / MYROSECT_SIZ) {+ hdr.secsize > SIZE_MAX / MYROSECT_SIZ ||
+ hdr.symsize > SIZE_MAX / MYROSYM_SIZ) {goto overflow;
}
strsiz = hdr.strsize;
@@ -128,7 +156,8 @@
printstrings(&hdr);
if (printsections(&hdr, fp) < 0)
goto wrong_file;
-
+ if (printsymbols(&hdr, fp) < 0)
+ goto wrong_file;
goto close_file;