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added init_array defines for new ld compatibility

tcc-xref
bellard 2003-05-29 22:52:53 +00:00
parent 370f5e571c
commit 9d95be78c8
1 changed files with 33 additions and 0 deletions
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33
tccelf.c
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@ -771,6 +771,34 @@ static void put_dt(Section *dynamic, int dt, unsigned long val)
dyn->d_un.d_val = val;
}
static void add_init_array_defines(TCCState *s1, const char *section_name)
{
Section *s;
long end_offset;
char sym_start[1024];
char sym_end[1024];
snprintf(sym_start, sizeof(sym_start), "__%s_start", section_name + 1);
snprintf(sym_end, sizeof(sym_end), "__%s_end", section_name + 1);
s = find_section(s1, section_name);
if (!s) {
end_offset = 0;
s = data_section;
} else {
end_offset = s->data_offset;
}
add_elf_sym(symtab_section,
0, 0,
ELF32_ST_INFO(STB_GLOBAL, STT_NOTYPE),
s->sh_num, sym_start);
add_elf_sym(symtab_section,
end_offset, 0,
ELF32_ST_INFO(STB_GLOBAL, STT_NOTYPE),
s->sh_num, sym_end);
}
/* add tcc runtime libraries */
static void tcc_add_runtime(TCCState *s1)
{
@ -830,6 +858,11 @@ static void tcc_add_runtime(TCCState *s1)
bss_section->data_offset, 0,
ELF32_ST_INFO(STB_GLOBAL, STT_NOTYPE),
bss_section->sh_num, "_end");
/* horrible new standard ldscript defines */
add_init_array_defines(s1, ".preinit_array");
add_init_array_defines(s1, ".init_array");
add_init_array_defines(s1, ".fini_array");
/* add start and stop symbols for sections whose name can be
expressed in C */
for(i = 1; i < s1->nb_sections; i++) {