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[Patch, avr] Propagate -mrelax gcc driver flag to assembler
- From: Senthil Kumar Selvaraj <senthil_kumar dot selvaraj at atmel dot com>
- To: <gcc-patches at gcc dot gnu dot org>
- Cc: <chertykov at gmail dot com>, <gjl at gcc dot gnu dot org>
- Date: Fri, 11 Apr 2014 20:40:09 +0530
- Subject: [Patch, avr] Propagate -mrelax gcc driver flag to assembler
- Authentication-results: sourceware.org; auth=none
This patch modifies AVR target's ASM spec to pass -mlink-relax to the
assembler if -mrelax is passed to the compiler driver. This was already
being passed on to the linker, this patch merely makes the assembler
also aware of it.
The corresponding patch in binutils to handle the -mlink-relax patch is
already committed in the binutils repo. I'm not sure how to manage a
running a newer gcc with an older version of binutils though - how is this
generally handled?
If ok, could someone commit please? I don't have commit access.
Regards
Senthil
2014-04-11 Senthil Kumar Selvaraj <senthil_kumar.selvaraj@atmel.com>
* config/avr/avr.h: Modify ASM_SPEC to pass -mlink-relax
to assembler.
diff --git gcc/config/avr/avr.h gcc/config/avr/avr.h
index 78434ec..c1b4dd9 100644
--- gcc/config/avr/avr.h
+++ gcc/config/avr/avr.h
@@ -512,7 +512,8 @@ extern const char *avr_device_to_sp8 (int argc, const char **argv);
%{!fenforce-eh-specs:-fno-enforce-eh-specs} \
%{!fexceptions:-fno-exceptions}"
-#define ASM_SPEC "%:device_to_as(%{mmcu=*:%*}) "
+#define ASM_SPEC "%:device_to_as(%{mmcu=*:%*})\
+%{mrelax:-mlink-relax}"
#define LINK_SPEC "\
%{mrelax:--relax\