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authorHenning Schild <henning@hennsch.de>2012-09-05 14:56:39 +0200
committerAurelien Jarno <aurelien@aurel32.net>2012-09-07 15:26:52 +0200
commit7e9c7ffe9fd9dfc3d0168dd584936db8144b230b (patch)
treeb488e761b892682d408db54ce5a8ec1f2b526a88
parent6e4c0d1f03d6ab407509c32fab7cb4b8230f57ff (diff)
downloadqemu-7e9c7ffe9fd9dfc3d0168dd584936db8144b230b.zip
fix entry pointer for ELF kernels loaded with -kernel option
Find a hopefully proper patch attached. Take it or leave it. Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Henning Schild <henning@hennsch.de> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
-rw-r--r--hw/elf_ops.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/hw/elf_ops.h b/hw/elf_ops.h
index fa65ce2f93..731a983854 100644
--- a/hw/elf_ops.h
+++ b/hw/elf_ops.h
@@ -269,6 +269,17 @@ static int glue(load_elf, SZ)(const char *name, int fd,
addr = ph->p_paddr;
}
+ /* the entry pointer in the ELF header is a virtual
+ * address, if the text segments paddr and vaddr differ
+ * we need to adjust the entry */
+ if (pentry && !translate_fn &&
+ ph->p_vaddr != ph->p_paddr &&
+ ehdr.e_entry >= ph->p_vaddr &&
+ ehdr.e_entry < ph->p_vaddr + ph->p_filesz &&
+ ph->p_flags & PF_X) {
+ *pentry = ehdr.e_entry - ph->p_vaddr + ph->p_paddr;
+ }
+
snprintf(label, sizeof(label), "phdr #%d: %s", i, name);
rom_add_blob_fixed(label, data, mem_size, addr);