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Generate PIC for addresses of symbols.

tcc-xref
Shinichiro Hamaji 2009-03-20 20:34:58 +09:00 committed by grischka
parent 7db1e69df2
commit b8a32d8d40
1 changed files with 8 additions and 11 deletions
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19
x86_64-gen.c
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@ -197,14 +197,6 @@ static void gen_addr64(int r, Sym *sym, int64_t c)
gen_le64(c);
}
/* output constant with relocation if 'r & VT_SYM' is true */
static void gen_addr32(int r, Sym *sym, int c)
{
if (r & VT_SYM)
greloc(cur_text_section, sym, ind, R_X86_64_32);
gen_le32(c);
}
/* output constant with relocation if 'r & VT_SYM' is true */
static void gen_addrpc32(int r, Sym *sym, int c)
{
@ -317,9 +309,14 @@ void load(int r, SValue *sv)
o(0xb8 + REG_VALUE(r)); /* mov $xx, r */
gen_addr64(fr, sv->sym, sv->c.ull);
} else {
o(0xc748);
o(0xc0 + REG_VALUE(r)); /* mov $xx, r */
gen_addr32(fr, sv->sym, fc);
if (fr & VT_SYM) {
o(0x8d48);
o(0x05 + REG_VALUE(r) * 8); /* lea xx(%rip), r */
gen_addrpc32(fr, sv->sym, fc);
} else {
o(0xb8 + REG_VALUE(r)); /* mov $xx, r */
gen_le32(fc);
}
}
} else if (v == VT_LOCAL) {
o(0x48 | REX_BASE(r));