linux-kernel - [PATCH 2/6] kbuild: Put kallsyms into own section

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Message-Id: <1391845840-28514-2-git-send-email-ak@linux.intel.com>
Date:	Sat,  8 Feb 2014 08:50:36 +0100
From:	Andi Kleen <ak@...ux.intel.com>
To:	mmarek@...e.cz
Cc:	linux-kernel@...r.kernel.org, linux-kbuild@...r.kernel.org,
	Andi Kleen <ak@...ux.intel.com>
Subject: [PATCH 2/6] kbuild: Put kallsyms into own section

Put the kallsyms information into an own .kallsyms section.
This makes it easier to patch the kallsyms inside the executable.
Otherwise it shouldn't change anything.

Signed-off-by: Andi Kleen <ak@...ux.intel.com>
---
 include/asm-generic/vmlinux.lds.h | 4 ++++
 scripts/kallsyms.c                | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index bc2121f..6214f18 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -280,6 +280,10 @@
 									\
 	TRACEDATA							\
 									\
+	.kallsyms          : AT(ADDR(.kallsyms) - LOAD_OFFSET) {	\
+		*(.kallsyms)						\
+	}								\
+									\
 	/* Kernel symbol table: Normal symbols */			\
 	__ksymtab         : AT(ADDR(__ksymtab) - LOAD_OFFSET) {		\
 		VMLINUX_SYMBOL(__start___ksymtab) = .;			\
diff --git a/scripts/kallsyms.c b/scripts/kallsyms.c
index 56f5986..ceef756 100644
--- a/scripts/kallsyms.c
+++ b/scripts/kallsyms.c
@@ -314,7 +314,7 @@ static void write_src(void)
 	printf("#define ALGN .align 4\n");
 	printf("#endif\n");
 
-	printf("\t.section .rodata, \"a\"\n");
+	printf("\t.section .kallsyms, \"a\"\n");
 
 	/* Provide proper symbols relocatability by their '_text'
 	 * relativeness.  The symbol names cannot be used to construct
-- 
1.8.5.2

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