[PATCH v2 1/2] powerpc: fix vmlinux.lds to build with CONFIG_LD_DEAD_CODE_DATA_ELIMINATION

[Christophe Leroy]

This patch fixes vmlinux.lds script to build properly with
CONFIG_LD_DEAD_CODE_DATA_ELIMINATION enabled

Signed-off-by: Christophe Leroy <christophe.le...@c-s.fr>
---
 arch/powerpc/kernel/vmlinux.lds.S | 4 ++--
 include/asm-generic/vmlinux.lds.h | 6 +++++-
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/kernel/vmlinux.lds.S 
b/arch/powerpc/kernel/vmlinux.lds.S
index c8af90ff49f0..afff03e9be39 100644
--- a/arch/powerpc/kernel/vmlinux.lds.S
+++ b/arch/powerpc/kernel/vmlinux.lds.S
@@ -98,7 +98,7 @@ SECTIONS
                ALIGN_FUNCTION();
 #endif
                /* careful! __ftr_alt_* sections need to be close to .text */
-               *(.text.hot .text .text.fixup .text.unlikely .fixup __ftr_alt_* 
.ref.text);
+               *(.text.hot TEXT_MAIN .text.fixup .text.unlikely .fixup 
__ftr_alt_* .ref.text);
                SCHED_TEXT
                CPUIDLE_TEXT
                LOCK_TEXT
@@ -274,7 +274,7 @@ SECTIONS
        .data : AT(ADDR(.data) - LOAD_OFFSET) {
                DATA_DATA
                *(.data.rel*)
-               *(.sdata)
+               *(SDATA_MAIN)
                *(.sdata2)
                *(.got.plt) *(.got)
                *(.plt)
diff --git a/include/asm-generic/vmlinux.lds.h 
b/include/asm-generic/vmlinux.lds.h
index 278841c75b97..5549be081931 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -68,11 +68,15 @@
 #ifdef CONFIG_LD_DEAD_CODE_DATA_ELIMINATION
 #define TEXT_MAIN .text .text.[0-9a-zA-Z_]*
 #define DATA_MAIN .data .data.[0-9a-zA-Z_]*
+#define SDATA_MAIN .sdata .sdata.[0-9a-zA-Z_]*
 #define BSS_MAIN .bss .bss.[0-9a-zA-Z_]*
+#define SBSS_MAIN .sbss .sbss.[0-9a-zA-Z_]*
 #else
 #define TEXT_MAIN .text
 #define DATA_MAIN .data
+#define SDATA_MAIN .sdata
 #define BSS_MAIN .bss
+#define SBSS_MAIN .sbss
 #endif
 
 /*
@@ -629,7 +633,7 @@
        . = ALIGN(sbss_align);                                          \
        .sbss : AT(ADDR(.sbss) - LOAD_OFFSET) {                         \
                *(.dynsbss)                                             \
-               *(.sbss)                                                \
+               *(SBSS_MAIN)                                            \
                *(.scommon)                                             \
        }
 
-- 
2.13.3