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target/arm/m_helper: Silence GCC 10 maybe-uninitialized error
When building with GCC 10.2 configured with --extra-cflags=-Os, we get: target/arm/m_helper.c: In function ‘arm_v7m_cpu_do_interrupt’: target/arm/m_helper.c:1811:16: error: ‘restore_s16_s31’ may be used uninitialized in this function [-Werror=maybe-uninitialized] 1811 | if (restore_s16_s31) { | ^ target/arm/m_helper.c:1350:10: note: ‘restore_s16_s31’ was declared here 1350 | bool restore_s16_s31; | ^~~~~~~~~~~~~~~ cc1: all warnings being treated as errors Initialize the 'restore_s16_s31' variable to silence the warning. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-id: 20210119062739.589049-1-f4bug@amsat.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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@ -1347,7 +1347,7 @@ static void do_v7m_exception_exit(ARMCPU *cpu)
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bool exc_secure = false;
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bool return_to_secure;
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bool ftype;
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bool restore_s16_s31;
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bool restore_s16_s31 = false;
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/*
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* If we're not in Handler mode then jumps to magic exception-exit
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