[PATCH 1/7] i386: Put allocated ELF notes in read-only data segment

[Roland McGrath]

This changes the i386 linker script and the asm-generic macro it uses so
that ELF note sections with SHF_ALLOC set are linked into the kernel image
along with other read-only data.  The PT_NOTE also points to their location.

This paves the way for putting useful build-time information into ELF notes
that can be found easily later in a kernel memory dump.

Signed-off-by: Roland McGrath <roland@xxxxxxxxxx>
---
 arch/i386/kernel/vmlinux.lds.S    |    6 +++---
 include/asm-generic/vmlinux.lds.h |    6 +++++-
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/arch/i386/kernel/vmlinux.lds.S b/arch/i386/kernel/vmlinux.lds.S
index aa87b06..f5b1db5 100644
--- a/arch/i386/kernel/vmlinux.lds.S
+++ b/arch/i386/kernel/vmlinux.lds.S
@@ -60,7 +60,9 @@ SECTIONS
   	__stop___ex_table = .;
   }
 
-  BUG_TABLE
+  NOTES :text :note
+
+  BUG_TABLE :text
 
   . = ALIGN(4);
   .tracedata : AT(ADDR(.tracedata) - LOAD_OFFSET) {
@@ -206,6 +208,4 @@ SECTIONS
   STABS_DEBUG
 
   DWARF_DEBUG
-
-  NOTES
 }
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index 84155eb..d86c929 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -224,7 +224,11 @@
 	}
 
 #define NOTES								\
-	.notes : { *(.note.*) } :note
+	.notes : AT(ADDR(.notes) - LOAD_OFFSET) {			\
+		VMLINUX_SYMBOL(__start_notes) = .;			\
+		*(.note.*)						\
+		VMLINUX_SYMBOL(__stop_notes) = .;			\
+	}
 
 #define INITCALLS							\
   	*(.initcall0.init)						\
-
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