[Xen-devel] [patch 02/24] Xen-paravirt_ops: Clean up ELF note generation

[Jeremy Fitzhardinge <jeremy@xxxxxxxx>]

Three cleanups:

1: ELF notes are never mapped, so there's no need to have any access
flags in their phdr.

2: When generating them from asm, tell the assembler to use a SHT_NOTE
section type.  There doesn't seem to be a way to do this from C.

3: Use ANSI rather than traditional cpp behaviour to stringify the
macro argument.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xxxxxxxxxxxxx>
Cc: Eric W. Biederman <ebiederm@xxxxxxxxxxxx>

===================================================================
--- a/arch/i386/kernel/vmlinux.lds.S
+++ b/arch/i386/kernel/vmlinux.lds.S
@@ -34,7 +34,7 @@ PHDRS {
 PHDRS {
        text PT_LOAD FLAGS(5);  /* R_E */
        data PT_LOAD FLAGS(7);  /* RWE */
-       note PT_NOTE FLAGS(4);  /* R__ */
+       note PT_NOTE FLAGS(0);  /* ___ */
 }
 SECTIONS
 {
===================================================================
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -208,7 +208,7 @@
        }
 
 #define NOTES                                                          \
-               .notes : { *(.note.*) } :note
+       .notes : { *(.note.*) } :note
 
 #define INITCALLS                                                      \
        *(.initcall0.init)                                              \
===================================================================
--- a/include/linux/elfnote.h
+++ b/include/linux/elfnote.h
@@ -39,12 +39,12 @@
  *      ELFNOTE(XYZCo, 12, .long, 0xdeadbeef)
  */
 #define ELFNOTE(name, type, desctype, descdata)        \
-.pushsection .note.name                        ;       \
+.pushsection .note.name, "",@note      ;       \
   .align 4                             ;       \
   .long 2f - 1f                /* namesz */    ;       \
   .long 4f - 3f                /* descsz */    ;       \
   .long type                           ;       \
-1:.asciz "name"                                ;       \
+1:.asciz #name                         ;       \
 2:.align 4                             ;       \
 3:desctype descdata                    ;       \
 4:.align 4                             ;       \

-- 


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