[Xen-changelog] [xen-unstable] [TOOLS] Avoid void* arithmetic when parsing elf notes.

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User kfraser@xxxxxxxxxxxxxxxxxxxxx
# Date 1169219120 0
# Node ID 5d08bf268f92fdf9febe4f3a99bd936f14a863a3
# Parent  1e5ad8ccb286300643fb7e8d59a8bd01b7ccdc81
[TOOLS] Avoid void* arithmetic when parsing elf notes.
Signed-off-by: Keir Fraser <keir@xxxxxxxxxxxxx>
---
 tools/libxc/xc_load_elf.c |   10 +++++-----
 tools/xcutils/readnotes.c |    2 +-
 2 files changed, 6 insertions(+), 6 deletions(-)

diff -r 1e5ad8ccb286 -r 5d08bf268f92 tools/libxc/xc_load_elf.c
--- a/tools/libxc/xc_load_elf.c Fri Jan 19 15:03:02 2007 +0000
+++ b/tools/libxc/xc_load_elf.c Fri Jan 19 15:05:20 2007 +0000
@@ -177,7 +177,7 @@ static unsigned long long xen_guest_nume
 /*
  * Interface to the Xen ELF notes.
  */
-#define ELFNOTE_NAME(_n_)   ((const void*)(_n_) + sizeof(*(_n_)))
+#define ELFNOTE_NAME(_n_)   ((const char*)(_n_) + sizeof(*(_n_)))
 #define ELFNOTE_DESC(_n_)   (ELFNOTE_NAME(_n_) + (((_n_)->namesz+3)&~3))
 #define ELFNOTE_NEXT(_n_)   (ELFNOTE_DESC(_n_) + (((_n_)->descsz+3)&~3))
 
@@ -190,7 +190,7 @@ static int is_xen_elfnote_section(const 
 
     for ( note = (const Elf_Note *)(image + shdr->sh_offset);
           note < (const Elf_Note *)(image + shdr->sh_offset + shdr->sh_size);
-          note = ELFNOTE_NEXT(note) )
+          note = (const Elf_Note *)ELFNOTE_NEXT(note) )
     {
         if ( !strncmp(ELFNOTE_NAME(note), "Xen", 4) )
             return 1;
@@ -209,7 +209,7 @@ static const Elf_Note *xen_elfnote_looku
 
     for ( note = (const Elf_Note *)dsi->__elfnote_section;
           note < (const Elf_Note *)dsi->__elfnote_section_end;
-          note = ELFNOTE_NEXT(note) )
+          note = (const Elf_Note *)ELFNOTE_NEXT(note) )
     {
         if ( strncmp(ELFNOTE_NAME(note), "Xen", 4) )
             continue;
@@ -338,9 +338,9 @@ static int parseelfimage(const char *ima
             image + ehdr->e_shoff + (h*ehdr->e_shentsize));
         if ( !is_xen_elfnote_section(image, shdr) )
             continue;
-        dsi->__elfnote_section = (const void *)image + shdr->sh_offset;
+        dsi->__elfnote_section = (const char *)image + shdr->sh_offset;
         dsi->__elfnote_section_end =
-            (const void *)image + shdr->sh_offset + shdr->sh_size;
+            (const char *)image + shdr->sh_offset + shdr->sh_size;
         break;
     }
 
diff -r 1e5ad8ccb286 -r 5d08bf268f92 tools/xcutils/readnotes.c
--- a/tools/xcutils/readnotes.c Fri Jan 19 15:03:02 2007 +0000
+++ b/tools/xcutils/readnotes.c Fri Jan 19 15:05:20 2007 +0000
@@ -13,7 +13,7 @@
 
 #include <xen/elfnote.h>
 
-#define ELFNOTE_NAME(_n_) ((void*)(_n_) + sizeof(*(_n_)))
+#define ELFNOTE_NAME(_n_) ((char*)(_n_) + sizeof(*(_n_)))
 #define ELFNOTE_DESC(_n_) (ELFNOTE_NAME(_n_) + (((_n_)->n_namesz+3)&~3))
 #define ELFNOTE_NEXT(_n_) (ELFNOTE_DESC(_n_) + (((_n_)->n_descsz+3)&~3))
 

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