usr.bin/ldd/sods.c

112 static const struct exec *ex;
210     ex = (const struct exec *) align_struct(file_base);
212     printf("%s: a_midmag = 0x%lx\n", fname, (long)ex->a_midmag);
214 	(long)N_GETMAGIC(*ex), (long)N_GETMAGIC(*ex),
215 	(long)N_GETMAGIC_NET(*ex), (long)N_GETMAGIC_NET(*ex));
217     if (N_BADMAG(*ex)) {
224     printf("  a_text   = 0x%lx\n", (long)ex->a_text);
225     printf("  a_data   = 0x%lx\n", (long)ex->a_data);
226     printf("  a_bss    = 0x%lx\n", (long)ex->a_bss);
227     printf("  a_syms   = 0x%lx\n", (long)ex->a_syms);
228     printf("  a_entry  = 0x%lx\n", (long)ex->a_entry);
229     printf("  a_trsize = 0x%lx\n", (long)ex->a_trsize);
230     printf("  a_drsize = 0x%lx\n", (long)ex->a_drsize);
232     text_base = file_base + N_TXTOFF(*ex);
233     data_base = file_base + N_DATOFF(*ex);
235 	align_struct(file_base + N_RELOFF(*ex));
236     sym_base = (const struct nlist *) align_struct(file_base + N_SYMOFF(*ex));
237     str_base = file_base + N_STROFF(*ex);
239     rel_count = (ex->a_trsize + ex->a_drsize) / sizeof rel_base[0];
240     assert(rel_count * sizeof rel_base[0] == ex->a_trsize + ex->a_drsize);
241     sym_count = ex->a_syms / sizeof sym_base[0];
242     assert(sym_count * sizeof sym_base[0] == ex->a_syms);
249     printf("  Entry = 0x%lx\n", (long)ex->a_entry);
250     printf("  Text offset = %x, address = %lx\n", N_TXTOFF(*ex),
251 	(long)N_TXTADDR(*ex));
252     printf("  Data offset = %lx, address = %lx\n", (long)N_DATOFF(*ex),
253 	(long)N_DATADDR(*ex));
257      * the assumed run-time load address, i.e., N_TXTADDR(*ex), i.e., 0x1000.
260      * start of the file, i.e., N_TXTOFF(*ex), i.e., 0.
262      * The way to tell the difference is by looking at ex->a_entry.   If it
281     if (ex->a_entry >= PAGE_SIZE) {	/* Executable, not a shared library */
284 	 * assumption that the object will be loaded at N_TXTADDR(*ex).
291     } else if (N_GETFLAG(*ex) & EX_DYNAMIC)
296     if (N_GETFLAG(*ex) & EX_DYNAMIC) {
361 	  && (unsigned long)r->r_address < origin + ex->a_text + ex->a_data
421     printf("  Text segment starts at address %lx\n", origin + N_TXTOFF(*ex));
422     if (N_GETFLAG(*ex) & EX_DYNAMIC) {
429     printf("  Data segment starts at address %lx\n", origin + N_DATOFF(*ex));
430     if (N_GETFLAG(*ex) & EX_DYNAMIC) {
431 	printf("    _dynamic starts at %lx\n", origin + N_DATOFF(*ex));