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Merge pull request #221 from daniel-thompson/fix_gcc-11

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Use -fno-ipa-modref when building with gcc-11 (or later)
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Ha Thach
2021-09-10 23:47:08 +07:00
committed by GitHub
parent 58e756e6cc 235c0fac5b
commit 3d04d61bc6
1 changed files with 12 additions and 0 deletions
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Makefile
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@@ -270,6 +270,18 @@ CFLAGS += -Wno-unused-parameter -Wno-expansion-to-defined
# TinyUSB tusb_hal_nrf_power_event
CFLAGS += -Wno-cast-function-type
# Nordic Softdevice SDK header files contains inline assembler that has
# broken constraints. As a result the IPA-modref pass, introduced in gcc-11,
# is able to "prove" that arguments to wrapper functions generated with
# the SVCALL() macro are unused and, as a result, the optimizer will remove
# code within the callers that sets up these arguments (which results in
# a broken bootloader). The broken headers come from Nordic-supplied zip
# files and are not trivial to patch so, for now, we'll simply disable the
# new gcc-11 inter-procedural optimizations.
ifeq (,$(findstring unrecognized,$(shell $(CC) $(CFLAGS) -fno-ipa-modref 2>&1)))
CFLAGS += -fno-ipa-modref
endif
# Defined Symbol (MACROS)
CFLAGS += -D__HEAP_SIZE=0
CFLAGS += -DCONFIG_GPIO_AS_PINRESET