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Merge pull request #464 from sej7278/master

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Changed LTO support check to avr-gcc > 4.9.0
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Simon John 2016-10-11 15:35:35 +01:00 committed by GitHub
commit 299c1831cc
3 changed files with 9 additions and 9 deletions
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10
Arduino.mk
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@ -1032,7 +1032,7 @@ CC_VERNUM = $(shell $(CC) -dumpversion | sed 's/\.//g')
# moved from above so we can find version-dependant ar # moved from above so we can find version-dependant ar
ifndef AR_NAME ifndef AR_NAME
ifeq ($(shell expr $(CC_VERNUM) '>' 480), 1) ifeq ($(shell expr $(CC_VERNUM) '>' 490), 1)
AR_NAME = avr-gcc-ar AR_NAME = avr-gcc-ar
else else
AR_NAME = avr-ar AR_NAME = avr-ar
@ -1040,7 +1040,7 @@ ifndef AR_NAME
endif endif
ifndef CFLAGS_STD ifndef CFLAGS_STD
ifeq ($(shell expr $(CC_VERNUM) '>' 480), 1) ifeq ($(shell expr $(CC_VERNUM) '>' 490), 1)
CFLAGS_STD = -std=gnu11 -flto -fno-fat-lto-objects CFLAGS_STD = -std=gnu11 -flto -fno-fat-lto-objects
else else
CFLAGS_STD = CFLAGS_STD =
@ -1051,7 +1051,7 @@ else
endif endif
ifndef CXXFLAGS_STD ifndef CXXFLAGS_STD
ifeq ($(shell expr $(CC_VERNUM) '>' 480), 1) ifeq ($(shell expr $(CC_VERNUM) '>' 490), 1)
CXXFLAGS_STD = -std=gnu++11 -fno-threadsafe-statics -flto CXXFLAGS_STD = -std=gnu++11 -fno-threadsafe-statics -flto
else else
CXXFLAGS_STD = CXXFLAGS_STD =
@ -1064,11 +1064,11 @@ endif
CFLAGS += $(CFLAGS_STD) CFLAGS += $(CFLAGS_STD)
CXXFLAGS += -fpermissive -fno-exceptions $(CXXFLAGS_STD) CXXFLAGS += -fpermissive -fno-exceptions $(CXXFLAGS_STD)
ASFLAGS += -x assembler-with-cpp ASFLAGS += -x assembler-with-cpp
ifeq ($(shell expr $(CC_VERNUM) '>' 480), 1) ifeq ($(shell expr $(CC_VERNUM) '>' 490), 1)
ASFLAGS += -flto ASFLAGS += -flto
endif endif
LDFLAGS += -$(MCU_FLAG_NAME)=$(MCU) -Wl,--gc-sections -O$(OPTIMIZATION_LEVEL) LDFLAGS += -$(MCU_FLAG_NAME)=$(MCU) -Wl,--gc-sections -O$(OPTIMIZATION_LEVEL)
ifeq ($(shell expr $(CC_VERNUM) '>' 480), 1) ifeq ($(shell expr $(CC_VERNUM) '>' 490), 1)
LDFLAGS += -flto -fuse-linker-plugin LDFLAGS += -flto -fuse-linker-plugin
endif endif
SIZEFLAGS ?= --mcu=$(MCU) -C SIZEFLAGS ?= --mcu=$(MCU) -C

2
HISTORY.md
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@ -5,7 +5,7 @@ The following is the rough list of changes that went into different versions.
I tried to give credit whenever possible. If I have missed anyone, kindly add it to the list. I tried to give credit whenever possible. If I have missed anyone, kindly add it to the list.
### In Development ### In Development
- New: Add LTO support for users with avr-gcc > 4.8 (issue #446) (https://github.com/sej7278) - New: Add LTO support for users with avr-gcc > 4.9 (issue #446 & #456) (https://github.com/sej7278)
- Tweak: Updated Linux instructions and sync documentation from the old blog(), README.md and Arduino.mk (https://github.com/az-z) - Tweak: Updated Linux instructions and sync documentation from the old blog(), README.md and Arduino.mk (https://github.com/az-z)
- Fix: Updated CXXFLAGS_STD to match upstream 1.6 (issue #424) (https://github.com/calvinli) - Fix: Updated CXXFLAGS_STD to match upstream 1.6 (issue #424) (https://github.com/calvinli)
- Fix: Added support for attiny core's use of chip instead of cpu in submenus (https://github.com/straccio) - Fix: Added support for attiny core's use of chip instead of cpu in submenus (https://github.com/straccio)

6
arduino-mk-vars.md
View file

@ -822,7 +822,7 @@ OBJDUMP_NAME = pic32-objdump
Archive utility. Archive utility.
Defaults to `avr-ar` unless you're using toolchain > 4.8.0 in which case we use avr-gcc-ar. Defaults to `avr-ar` unless you're using toolchain > 4.9.0 in which case we use avr-gcc-ar.
**Example:** **Example:**
@ -894,7 +894,7 @@ OPTIMIZATION_LEVEL = 3
Controls, *exclusively*, which C standard is to be used for compilation. Controls, *exclusively*, which C standard is to be used for compilation.
Defaults to `undefined` on 1.0.x or `-std=gnu11 -flto -fno-fat-lto-objects` on 1.5+ or if you install AVR toolchain > 4.8.0 Defaults to `undefined` on 1.0.x or `-std=gnu11 -flto -fno-fat-lto-objects` on 1.5+ or if you install AVR toolchain > 4.9.0
Possible values: Possible values:
@ -929,7 +929,7 @@ CFLAGS_STD = = -std=gnu89
Controls, *exclusively*, which C++ standard is to be used for compilation. Controls, *exclusively*, which C++ standard is to be used for compilation.
Defaults to `undefined` on 1.0 or `-std=gnu++11 -fno-threadsafe-statics -flto` on AVR toolchain > 4.8.0 (e.g. IDE 1.5+) Defaults to `undefined` on 1.0 or `-std=gnu++11 -fno-threadsafe-statics -flto` on AVR toolchain > 4.9.0 (e.g. IDE 1.6.10+)
Possible values: Possible values: