arm: Fix CMSE support detection in libgcc (PR target/99157)
As discussed in the PR, the Makefile fragment lacks a double '$' to get the return-code from GCC invocation, resulting is CMSE support missing from multilibs. I checked that the simple patch proposed in the PR fixes the problem. 2021-02-23 Christophe Lyon <christophe.lyon@linaro.org> Hau Hsu <hsuhau617@gmail.com> PR target/99157 libgcc/ * config/arm/t-arm: Fix cmse support detection.
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@ -4,7 +4,7 @@ LIB1ASMFUNCS = _thumb1_case_sqi _thumb1_case_uqi _thumb1_case_shi \
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HAVE_CMSE:=$(findstring __ARM_FEATURE_CMSE,$(shell $(gcc_compile_bare) -dM -E - </dev/null))
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HAVE_CMSE:=$(findstring __ARM_FEATURE_CMSE,$(shell $(gcc_compile_bare) -dM -E - </dev/null))
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HAVE_V81M:=$(findstring armv8.1-m.main,$(gcc_compile_bare))
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HAVE_V81M:=$(findstring armv8.1-m.main,$(gcc_compile_bare))
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ifeq ($(shell $(gcc_compile_bare) -E -mcmse - </dev/null >/dev/null 2>/dev/null; echo $?),0)
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ifeq ($(shell $(gcc_compile_bare) -E -mcmse - </dev/null >/dev/null 2>/dev/null; echo $$?),0)
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CMSE_OPTS:=-mcmse
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CMSE_OPTS:=-mcmse
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endif
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endif
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