Hi,
Android binary start with a weird elf program header : the first
one is of size 0 pointing to NULL addr.
Ignore LOAD program where MemSiz is 0.
Elf file type is EXEC (Executable file)
Entry point 0xb0001000
There are 5 program headers, starting at offset 52
Program Headers:
Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align
LOAD 0x0000d4 0x00000000 0xb0000000 0x00000 0x00000 R 0x1000
LOAD 0x001000 0xb0001000 0xb0001000 0x073d4 0x073d4 R E 0x1000
LOAD 0x009000 0xb0009000 0xb0009000 0x0068c 0x0969c RW 0x1000
GNU_STACK 0x000000 0x00000000 0x00000000 0x00000 0x00000 RW 0
EXIDX 0x00801c 0xb000801c 0xb000801c 0x003b8 0x003b8 R 0x4
Section to Segment mapping:
Segment Sections...
00
01 .text .rodata .ARM.extab .ARM.exidx
02 .preinit_array .init_array .fini_array .ctors .data.rel.ro .got .data
.bss
03
04 .ARM.exidx
>From 4d986b66e9ae04efeabde9ad73f60d3c2d6912f9 Mon Sep 17 00:00:00 2001
From: Matthieu CASTET <castet.matth...@free.fr>
Date: Wed, 2 Mar 2011 17:04:39 +0100
Subject: [PATCH] allow to load android binary
Android binary start with a weird elf program header : the first
one is of size 0 pointing to NULL addr.
Ignore LOAD program where MemSiz is 0.
Elf file type is EXEC (Executable file)
Entry point 0xb0001000
There are 5 program headers, starting at offset 52
Program Headers:
Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align
LOAD 0x0000d4 0x00000000 0xb0000000 0x00000 0x00000 R 0x1000
LOAD 0x001000 0xb0001000 0xb0001000 0x073d4 0x073d4 R E 0x1000
LOAD 0x009000 0xb0009000 0xb0009000 0x0068c 0x0969c RW 0x1000
GNU_STACK 0x000000 0x00000000 0x00000000 0x00000 0x00000 RW 0
EXIDX 0x00801c 0xb000801c 0xb000801c 0x003b8 0x003b8 R 0x4
Section to Segment mapping:
Segment Sections...
00
01 .text .rodata .ARM.extab .ARM.exidx
02 .preinit_array .init_array .fini_array .ctors .data.rel.ro .got .data .bss
03
04 .ARM.exidx
---
linux-user/elfload.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/linux-user/elfload.c b/linux-user/elfload.c
index 33d776d..284f3be 100644
--- a/linux-user/elfload.c
+++ b/linux-user/elfload.c
@@ -1201,7 +1201,7 @@ static void load_elf_image(const char *image_name, int image_fd,
amount of memory to handle that. */
loaddr = -1, hiaddr = 0;
for (i = 0; i < ehdr->e_phnum; ++i) {
- if (phdr[i].p_type == PT_LOAD) {
+ if (phdr[i].p_type == PT_LOAD && phdr[i].p_memsz) {
abi_ulong a = phdr[i].p_vaddr;
if (a < loaddr) {
loaddr = a;
@@ -1301,7 +1301,7 @@ static void load_elf_image(const char *image_name, int image_fd,
for (i = 0; i < ehdr->e_phnum; i++) {
struct elf_phdr *eppnt = phdr + i;
- if (eppnt->p_type == PT_LOAD) {
+ if (eppnt->p_type == PT_LOAD && eppnt->p_memsz) {
abi_ulong vaddr, vaddr_po, vaddr_ps, vaddr_ef, vaddr_em;
int elf_prot = 0;
--
1.7.4.1
