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

From: Andi Kleen
Date: Tue Feb 18 2014 - 09:25:46 EST


From: Andi Kleen <ak@xxxxxxxxxxxxxxx>

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@xxxxxxxxxxxxxxx>
---
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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