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unix/Makefile: Disable error compression on arm-linux-gnueabi-gcc.

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This compiler is unable to optimise out the giant strcmp match generated
by MP_MATCH_COMPRESSED.

See github.com/micropython/micropython/pull/7659#issuecomment-899479793

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
This commit is contained in:
Jim Mussared 2021-08-16 22:43:02 +10:00 committed by Damien George
parent e25c5cb8d2
commit 0c2cadf1c8
1 changed files with 11 additions and 0 deletions
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11
ports/unix/Makefile
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@ -290,6 +290,17 @@ else
RUN_TESTS_MPY_CROSS_FLAGS = --mpy-cross-flags='-mcache-lookup-bc' RUN_TESTS_MPY_CROSS_FLAGS = --mpy-cross-flags='-mcache-lookup-bc'
endif endif
ifeq ($(CROSS_COMPILE),arm-linux-gnueabi-)
# Force disable error text compression when compiling for ARM as the compiler
# cannot optimise out the giant strcmp list generated for MP_MATCH_COMPRESSED.
# Checked on:
# arm-linux-gnueabi-gcc (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04) 7.5.0
# arm-linux-gnueabi-gcc (Ubuntu 9.3.0-17ubuntu1~20.04) 9.3.0
# See https://github.com/micropython/micropython/pull/7659 for details.
$(info Detected arm-linux-gnueabi-gcc. Disabling error message compression.)
MICROPY_ROM_TEXT_COMPRESSION = 0
endif
include $(TOP)/py/mkrules.mk include $(TOP)/py/mkrules.mk
.PHONY: test test_full .PHONY: test test_full