conflicts

1 files changed, 0 insertions, 70 deletions

diff --git a/qemu_mode/patches/elfload.diff b/qemu_mode/patches/elfload.diff
deleted file mode 100644
index 011b03ea..00000000
--- a/qemu_mode/patches/elfload.diff
+++ /dev/null
@@ -1,70 +0,0 @@
-diff --git a/linux-user/elfload.c b/linux-user/elfload.c
-index 5bccd2e2..fd7460b3 100644
---- a/linux-user/elfload.c
-+++ b/linux-user/elfload.c
-@@ -20,6 +20,8 @@
- 
- #define ELF_OSABI   ELFOSABI_SYSV
- 
-+extern abi_ulong afl_entry_point, afl_start_code, afl_end_code;
-+
- /* from personality.h */
- 
- /*
-@@ -2301,6 +2303,21 @@ static void load_elf_image(const char *image_name, int image_fd,
-     info->brk = 0;
-     info->elf_flags = ehdr->e_flags;
- 
-+    if (!afl_entry_point) {
-+      char *ptr;
-+      if ((ptr = getenv("AFL_ENTRYPOINT")) != NULL) {
-+        afl_entry_point = strtoul(ptr, NULL, 16);
-+      } else {
-+        afl_entry_point = info->entry;
-+      }
-+#ifdef TARGET_ARM
-+      /* The least significant bit indicates Thumb mode. */
-+      afl_entry_point = afl_entry_point & ~(target_ulong)1;
-+#endif
-+    }
-+    if (getenv("AFL_DEBUG") != NULL)
-+      fprintf(stderr, "AFL forkserver entrypoint: %p\n", (void*)afl_entry_point);
-+
-     for (i = 0; i < ehdr->e_phnum; i++) {
-         struct elf_phdr *eppnt = phdr + i;
-         if (eppnt->p_type == PT_LOAD) {
-@@ -2335,9 +2352,11 @@ static void load_elf_image(const char *image_name, int image_fd,
-             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) {
-@@ -2662,6 +2681,22 @@ int load_elf_binary(struct linux_binprm *bprm, struct image_info *info)
-        change some of these later */
-     bprm->p = setup_arg_pages(bprm, info);
- 
-+    // On PowerPC64 the entry point is the _function descriptor_
-+    // of the entry function. For AFL to properly initialize,
-+    // afl_entry_point needs to be set to the actual first instruction
-+    // as opposed executed by the target program. This as opposed to 
-+    // where the function's descriptor sits in memory.
-+    // copied from PPC init_thread
-+#if defined(TARGET_PPC64) && !defined(TARGET_ABI32)
-+    if (get_ppc64_abi(infop) < 2) {
-+        uint64_t val;
-+        get_user_u64(val, infop->entry + 8);
-+        _regs->gpr[2] = val + infop->load_bias;
-+        get_user_u64(val, infop->entry);
-+        infop->entry = val + infop->load_bias;
-+    }
-+#endif
-+
-     scratch = g_new0(char, TARGET_PAGE_SIZE);
-     if (STACK_GROWS_DOWN) {
-         bprm->p = copy_elf_strings(1, &bprm->filename, scratch,