[PATCH v2 1/7] kbuild: fix LD_DEAD_CODE_DATA_ELIMINATION
From: samitolvanen@google.com (Sami Tolvanen)
Date: 2017-11-30 23:39:14
Also in:
linux-kbuild, lkml
Subsystem:
generic include/asm header files, the rest · Maintainers:
Arnd Bergmann, Linus Torvalds
Don't remove .head.text or .exitcall.exit when linking with --gc-sections, and include .init.text.* in .init.text and .init.rodata.* in .init.rodata. Signed-off-by: Sami Tolvanen <samitolvanen@google.com> Reviewed-by: Nicholas Piggin <npiggin@gmail.com> --- include/asm-generic/vmlinux.lds.h | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index ee8b707d9fa9..eb4199c12bd2 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h@@ -515,7 +515,7 @@ VMLINUX_SYMBOL(__softirqentry_text_end) = .; /* Section used for early init (in .S files) */ -#define HEAD_TEXT *(.head.text) +#define HEAD_TEXT KEEP(*(.head.text)) #define HEAD_TEXT_SECTION \ .head.text : AT(ADDR(.head.text) - LOAD_OFFSET) { \
@@ -560,7 +560,7 @@ MEM_DISCARD(init.data) \ KERNEL_CTORS() \ MCOUNT_REC() \ - *(.init.rodata) \ + *(.init.rodata .init.rodata.*) \ FTRACE_EVENTS() \ TRACE_SYSCALLS() \ KPROBE_BLACKLIST() \
@@ -579,7 +579,7 @@ EARLYCON_TABLE() #define INIT_TEXT \ - *(.init.text) \ + *(.init.text .init.text.*) \ *(.text.startup) \ MEM_DISCARD(init.text)
@@ -596,7 +596,7 @@ MEM_DISCARD(exit.text) #define EXIT_CALL \ - *(.exitcall.exit) + KEEP(*(.exitcall.exit)) /* * bss (Block Started by Symbol) - uninitialized data
--
2.15.0.531.g2ccb3012c9-goog