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| author | cpldcpu <cpldcpu@gmail.com> | 2015-01-12 00:46:06 +0100 |
|---|---|---|
| committer | cpldcpu <cpldcpu@gmail.com> | 2015-01-12 00:46:06 +0100 |
| commit | 42f2d8cc38064c67a9478826f563f5110c3848ee (patch) | |
| tree | 2add26052b2d424d9efaa5848b654b16f0e3d4cf /firmware/Makefile | |
| parent | 80419704f68bf0783c5de63a6a4b9d89b45235c7 (diff) | |
| download | micronucleus-42f2d8cc38064c67a9478826f563f5110c3848ee.tar.gz micronucleus-42f2d8cc38064c67a9478826f563f5110c3848ee.tar.bz2 micronucleus-42f2d8cc38064c67a9478826f563f5110c3848ee.zip | |
#ENABLE_UNSAFE_OPTIMIZATIONS
Added new global flag to enable unsafe optimizations:
This will disable several safety features in microncleus to save around
40 more bytes
Disabled features:
* Stack pointer and SREG initialization in CRT
* Client side reset vector patching
* USB collision detection. Micronucleus will not work reliability with
hubs if this is disabled.
See t85_aggressive configuration for usage examples.
Diffstat (limited to 'firmware/Makefile')
| -rw-r--r-- | firmware/Makefile | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/firmware/Makefile b/firmware/Makefile index 9bf5570..4574e0f 100644 --- a/firmware/Makefile +++ b/firmware/Makefile @@ -18,6 +18,7 @@ CONFIG ?= t85_default # make flash # to load the boot loader into flash # make disablereset # use external reset line for IO (CAUTION: this is not easy to enable again, see README) +CFLAGS = CONFIGPATH = configuration/$(CONFIG) include $(CONFIGPATH)/Makefile.inc @@ -29,7 +30,7 @@ AVRDUDE = avrdude $(PROGRAMMER) -p $(DEVICE) CC = avr-gcc # Options: -CFLAGS = -I. -g2 -Os # -Wall +CFLAGS += -I. -g2 -Os # -Wall CFLAGS += -I$(CONFIGPATH) -mmcu=$(DEVICE) -DF_CPU=$(F_CPU) -DBOOTLOADER_ADDRESS=0x$(BOOTLOADER_ADDRESS) CFLAGS += -nostartfiles -ffunction-sections -fdata-sections -fpack-struct -fno-inline-small-functions -fno-move-loop-invariants -fno-tree-scev-cprop |