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added -rdynamic support

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This commit is contained in:
bellard
2003-05-24 15:46:29 +00:00
parent fe3b68b087
commit 98713a6be3
2 changed files with 19 additions and 3 deletions
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8
tcc.c
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@ -398,6 +398,9 @@ struct TCCState {
/* if true, static linking is performed */ /* if true, static linking is performed */
int static_link; int static_link;
/* if true, all symbols are exported */
int rdynamic;
/* if true, only link in referenced objects from archive */ /* if true, only link in referenced objects from archive */
int alacarte_link; int alacarte_link;
@ -9653,7 +9656,7 @@ static const TCCOption tcc_options[] = {
{ "shared", TCC_OPTION_shared, 0 }, { "shared", TCC_OPTION_shared, 0 },
{ "o", TCC_OPTION_o, TCC_OPTION_HAS_ARG }, { "o", TCC_OPTION_o, TCC_OPTION_HAS_ARG },
{ "run", TCC_OPTION_run, 0 }, { "run", TCC_OPTION_run, 0 },
{ "rdynamic", TCC_OPTION_rdynamic, 0 }, /* currently ignored */ { "rdynamic", TCC_OPTION_rdynamic, 0 },
{ "r", TCC_OPTION_r, 0 }, { "r", TCC_OPTION_r, 0 },
{ "W", TCC_OPTION_W, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP }, { "W", TCC_OPTION_W, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
{ "O", TCC_OPTION_O, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP }, { "O", TCC_OPTION_O, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
@ -9838,6 +9841,9 @@ int main(int argc, char **argv)
goto unsupported_option; goto unsupported_option;
} }
break; break;
case TCC_OPTION_rdynamic:
s->rdynamic = 1;
break;
default: default:
if (s->warn_unsupported) { if (s->warn_unsupported) {
unsupported_option: unsupported_option:

14
tccelf.c
View File

@ -779,7 +779,7 @@ static void tcc_add_runtime(TCCState *s1)
Section *s; Section *s;
if (!s1->nostdlib) { if (!s1->nostdlib) {
snprintf(buf, sizeof(buf), "%s/%s", tcc_lib_path, "libtcc1.o"); snprintf(buf, sizeof(buf), "%s/%s", tcc_lib_path, "libtcc1.a");
tcc_add_file(s1, buf); tcc_add_file(s1, buf);
} }
#ifdef CONFIG_TCC_BCHECK #ifdef CONFIG_TCC_BCHECK
@ -967,7 +967,7 @@ int tcc_output_file(TCCState *s1, const char *filename)
unsigned long offset; unsigned long offset;
offset = bss_section->data_offset; offset = bss_section->data_offset;
/* XXX: which alignment ? */ /* XXX: which alignment ? */
offset = (offset + 8 - 1) & -8; offset = (offset + 16 - 1) & -16;
index = put_elf_sym(s1->dynsym, offset, esym->st_size, index = put_elf_sym(s1->dynsym, offset, esym->st_size,
esym->st_info, 0, esym->st_info, 0,
bss_section->sh_num, name); bss_section->sh_num, name);
@ -986,6 +986,14 @@ int tcc_output_file(TCCState *s1, const char *filename)
error_noabort("undefined symbol '%s'", name); error_noabort("undefined symbol '%s'", name);
} }
} }
} else if (s1->rdynamic &&
ELF32_ST_BIND(sym->st_info) != STB_LOCAL) {
/* if -rdynamic option, then export all non
local symbols */
name = symtab_section->link->data + sym->st_name;
put_elf_sym(s1->dynsym, sym->st_value, sym->st_size,
sym->st_info, 0,
sym->st_shndx, name);
} }
} }
@ -1003,6 +1011,8 @@ int tcc_output_file(TCCState *s1, const char *filename)
name = s1->dynsymtab_section->link->data + esym->st_name; name = s1->dynsymtab_section->link->data + esym->st_name;
sym_index = find_elf_sym(symtab_section, name); sym_index = find_elf_sym(symtab_section, name);
if (sym_index) { if (sym_index) {
/* XXX: avoid adding a symbol if already
present because of -rdynamic ? */
sym = &((Elf32_Sym *)symtab_section->data)[sym_index]; sym = &((Elf32_Sym *)symtab_section->data)[sym_index];
put_elf_sym(s1->dynsym, sym->st_value, sym->st_size, put_elf_sym(s1->dynsym, sym->st_value, sym->st_size,
sym->st_info, 0, sym->st_info, 0,