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AFL/elfload.diff

33 lines
1.1 KiB

--- qemu-2.10.0-rc3-clean/linux-user/elfload.c 2017-08-15 11:39:41.000000000 -0700
+++ qemu-2.10.0-rc3/linux-user/elfload.c 2017-08-22 14:33:57.397127516 -0700
@@ -20,6 +20,8 @@
#define ELF_OSABI ELFOSABI_SYSV
+extern abi_ulong afl_entry_point, afl_start_code, afl_end_code;
+
/* from personality.h */
/*
@@ -2085,6 +2087,8 @@
info->brk = 0;
info->elf_flags = ehdr->e_flags;
+ if (!afl_entry_point) afl_entry_point = info->entry;
+
for (i = 0; i < ehdr->e_phnum; i++) {
struct elf_phdr *eppnt = phdr + i;
if (eppnt->p_type == PT_LOAD) {
@@ -2118,9 +2122,11 @@
if (elf_prot & PROT_EXEC) {
if (vaddr < info->start_code) {
info->start_code = vaddr;
+ if (!afl_start_code) afl_start_code = vaddr;
}
if (vaddr_ef > info->end_code) {
info->end_code = vaddr_ef;
+ if (!afl_end_code) afl_end_code = vaddr_ef;
}
}
if (elf_prot & PROT_WRITE) {