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path: root/pkgs/tools/security/afl/qemu-patches/elfload.patch
blob: 65f1572e9a7bfd50cac4bc6ba7ea9e1d0bba76a8 (plain) (blame)
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--- qemu-2.2.0/linux-user/elfload.c.orig	2014-12-09 14:45:42.000000000 +0000
+++ qemu-2.2.0/linux-user/elfload.c	2015-01-28 02:51:23.719000000 +0000
@@ -28,6 +28,8 @@
 
 #define ELF_OSABI   ELFOSABI_SYSV
 
+extern abi_ulong afl_entry_point, afl_start_code, afl_end_code;
+
 /* from personality.h */
 
 /*
@@ -1886,6 +1888,8 @@
     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) {
@@ -1919,9 +1923,11 @@
             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) {