d0p1/tcc-stupidos
1
1
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Give ARM asm mnemonic of PLT entries

Browse source 
Give ARM assembly mnemonic of PLT entries in put_got_entry
This commit is contained in:
Thomas Preud'homme 2013-12-17 21:01:05 +08:00
parent 3d4b57ffe3
commit 599677a5e2
1 changed files with 9 additions and 9 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

18
tccelf.c
View file

@ -1102,23 +1102,23 @@ static void put_got_entry(TCCState *s1,
if (plt->data_offset == 0) { if (plt->data_offset == 0) {
/* first plt entry */ /* first plt entry */
p = section_ptr_add(plt, 16); p = section_ptr_add(plt, 16);
put32(p , 0xe52de004); put32(p, 0xe52de004); /* push {lr} */
put32(p + 4, 0xe59fe010); put32(p+4, 0xe59fe010); /* ldr lr, [pc, #16] */
put32(p + 8, 0xe08fe00e); put32(p+8, 0xe08fe00e); /* add lr, pc, lr */
put32(p + 12, 0xe5bef008); put32(p+12, 0xe5bef008); /* ldr pc, [lr, #8]! */
} }
if (s1->sym_attrs[sym_index].plt_thumb_stub) { if (s1->sym_attrs[sym_index].plt_thumb_stub) {
p = section_ptr_add(plt, 20); p = section_ptr_add(plt, 20);
put32(p , 0x4778); /* bx pc */ put32(p, 0x4778); /* bx pc */
put32(p+2, 0x46c0); /* nop */ put32(p+2, 0x46c0); /* nop */
p += 4; p += 4;
} else } else
p = section_ptr_add(plt, 16); p = section_ptr_add(plt, 16);
put32(p , 0xe59fc004); /* ldr ip, [pc, #4] ; offset in GOT */ put32(p, 0xe59fc004); /* ldr ip, [pc, #4] ; GOT entry offset */
put32(p+4, 0xe08fc00c); /* add ip, pc, ip ; absolute address or offset */ put32(p+4, 0xe08fc00c); /* add ip, pc, ip ; addr of GOT entry */
put32(p+8, 0xe59cf000); /* ldr pc, [ip] ; load absolute address or load offset */ put32(p+8, 0xe59cf000); /* ldr pc, [ip] ; jump to GOT entry */
put32(p+12, s1->got->data_offset); put32(p+12, s1->got->data_offset); /* GOT entry off once patched */
/* the symbol is modified so that it will be relocated to /* the symbol is modified so that it will be relocated to
the PLT */ the PLT */