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| author | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2013-09-09 13:45:30 +0000 |
|---|---|---|
| committer | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2013-09-09 13:45:30 +0000 |
| commit | 45c3970db8dcd40b9b8ceddcd48d06db4e2447ea (patch) | |
| tree | 5da07ecb535a9043043599ed99b706dc3efc4f96 /os/common | |
| parent | c6bfd5e1499f839a677423231295957ef008e50d (diff) | |
| download | ChibiOS-45c3970db8dcd40b9b8ceddcd48d06db4e2447ea.tar.gz ChibiOS-45c3970db8dcd40b9b8ceddcd48d06db4e2447ea.tar.bz2 ChibiOS-45c3970db8dcd40b9b8ceddcd48d06db4e2447ea.zip | |
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/branches/kernel_3_dev@6286 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'os/common')
| -rw-r--r-- | os/common/ports/ARMCMx/compilers/GCC/rules.mk | 25 |
1 files changed, 16 insertions, 9 deletions
diff --git a/os/common/ports/ARMCMx/compilers/GCC/rules.mk b/os/common/ports/ARMCMx/compilers/GCC/rules.mk index 249793fcd..f60fc985d 100644 --- a/os/common/ports/ARMCMx/compilers/GCC/rules.mk +++ b/os/common/ports/ARMCMx/compilers/GCC/rules.mk @@ -4,6 +4,21 @@ # Processing options coming from the upper Makefile.
#
+# Compiler options
+OPT = $(USE_OPT)
+COPT = $(USE_COPT)
+CPPOPT = $(USE_CPPOPT)
+
+# Garbage collection
+ifeq ($(USE_LINK_GC),yes)
+ OPT += -ffunction-sections -fdata-sections -fno-common
+endif
+
+# Link time optimizations
+ifeq ($(USE_LTO),yes)
+ OPT += -flto
+endif
+
# FPU-related options
ifeq ($(USE_FPU),yes)
USE_OPT += -mfloat-abi=softfp -mfpu=fpv4-sp-d16 -fsingle-precision-constant
@@ -45,14 +60,6 @@ endif OUTFILES = $(BUILDDIR)/$(PROJECT).elf $(BUILDDIR)/$(PROJECT).hex \
$(BUILDDIR)/$(PROJECT).bin $(BUILDDIR)/$(PROJECT).dmp
-# Automatic compiler options
-OPT = $(USE_OPT)
-COPT = $(USE_COPT)
-CPPOPT = $(USE_CPPOPT)
-ifeq ($(USE_LINK_GC),yes)
- OPT += -ffunction-sections -fdata-sections -fno-common
-endif
-
# Source files groups and paths
ifeq ($(USE_THUMB),yes)
TCSRC += $(CSRC)
@@ -96,7 +103,7 @@ ASFLAGS = $(MCFLAGS) -Wa,-amhls=$(LSTDIR)/$(notdir $(<:.s=.lst)) $(ADEFS) ASXFLAGS = $(MCFLAGS) -Wa,-amhls=$(LSTDIR)/$(notdir $(<:.S=.lst)) $(ADEFS)
CFLAGS = $(MCFLAGS) $(OPT) $(COPT) $(CWARN) -Wa,-alms=$(LSTDIR)/$(notdir $(<:.c=.lst)) $(DEFS)
CPPFLAGS = $(MCFLAGS) $(OPT) $(CPPOPT) $(CPPWARN) -Wa,-alms=$(LSTDIR)/$(notdir $(<:.cpp=.lst)) $(DEFS)
-LDFLAGS = $(MCFLAGS) -nostartfiles $(LLIBDIR) -Wl,-Map=$(BUILDDIR)/$(PROJECT).map,--cref,--no-warn-mismatch,--library-path=$(RULESPATH),--script=$(LDSCRIPT),$(LDOPT)
+LDFLAGS = $(MCFLAGS) $(OPT) -nostartfiles $(LLIBDIR) -Wl,-Map=$(BUILDDIR)/$(PROJECT).map,--cref,--no-warn-mismatch,--library-path=$(RULESPATH),--script=$(LDSCRIPT),$(LDOPT)
# Thumb interwork enabled only if needed because it kills performance.
ifneq ($(TSRC),)
|