On Wed, Jun 15, 2005 at 12:57:49PM +0200, Nicholas Allen wrote:
>Hi,
>
>I don't know if I have done something wrong or if tcc needs updates to work
>with recent Linux distributions. I am using Ubuntu with gcc 3.3.5 and when I
>try to compile hello.c with the following command:
>
>tcc hello.c -o hello
>
>I get the following error:
>
>/usr/lib/crtn.o: Invalid relocation entry
>
>This always used to work but since I have upgraded to Ubuntu it no longer
>does. I have the latest version of tcc from CVS and have recompiled on Ubuntu
>but I still get this error. Anyone know what this could be caused by?
The attached patch makes it work for me. Can you confirm that?
Relocation section '.rel.debug_line' at offset 0x6ec contains 3 entries:
Offset Info Type Sym.Value Sym. Name
0000005a 00000801 R_386_32 00000000 .gnu.linkonce.t.__i686
0000006a 00000701 R_386_32 00000000 .fini
0000007c 00000601 R_386_32 00000000 .init
--- tinycc.oorig/tccelf.c 2005-09-05 23:04:12.000000000 +0200
+++ tinycc.tmp/tccelf.c 2005-09-28 21:50:52.000000000 +0200
@@ -204,8 +204,8 @@ static int add_elf_sym(Section *s, unsig
/* weak is ignored if already global */
} else {
#if 0
- printf("new_bind=%d new_shndx=%d last_bind=%d old_shndx=%d\n",
- sym_bind, sh_num, esym_bind, esym->st_shndx);
+ printf("%12d new_bind=%d new_shndx=%d last_bind=%d
old_shndx=%d\n",
+ sym_index, sym_bind, sh_num, esym_bind, esym->st_shndx);
#endif
/* NOTE: we accept that two DLL define the same symbol */
if (s != tcc_state->dynsymtab_section)
@@ -1874,7 +1874,6 @@ static int tcc_load_object_file(TCCState
/* second short pass to update sh_link and sh_info fields of new
sections */
- sm = sm_table;
for(i = 1; i < ehdr.e_shnum; i++) {
s = sm_table[i].s;
if (!s || !sm_table[i].new_section)
@@ -1888,6 +1887,7 @@ static int tcc_load_object_file(TCCState
s1->sections[s->sh_info]->reloc = s;
}
}
+ sm = sm_table;
/* resolve symbols */
old_to_new_syms = tcc_mallocz(nb_syms * sizeof(int));
@@ -1949,9 +1949,12 @@ static int tcc_load_object_file(TCCState
if (sym_index >= nb_syms)
goto invalid_reloc;
sym_index = old_to_new_syms[sym_index];
- if (!sym_index) {
+ /* ignore link_once in rel section. */
+ if (!sym_index && !sm->link_once) {
invalid_reloc:
error_noabort("Invalid relocation entry");
+ error_noabort(" [%2d] '%s' @%.8x", i,
+ strsec + sh->sh_name, rel->r_offset);
goto fail;
}
rel->r_info = ELF32_R_INFO(sym_index, type);
@@ -2066,7 +2069,7 @@ static int tcc_load_archive(TCCState *s1
break;
}
ar_name[i + 1] = '\0';
- // printf("name='%s' size=%d %s\n", ar_name, size, ar_size);
+/* printf("name='%s' size=%d %s\n", ar_name, size, ar_size);*/
file_offset = lseek(fd, 0, SEEK_CUR);
/* align to even */
size = (size + 1) & ~1;
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