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Add a test that verifies modifying SP (REG_R13) in the saved register context is honored on signal return. The test pushes values onto the stack, triggers SIGALRM, and in the handler advances SP to skip a value, then verifies the correct value is popped after signal return. This exercises the SP relocation fix in arm_sigdeliver.c for ARMv7-M and ARMv8-M architectures. Signed-off-by: Andrew Au <cshung@gmail.com>
31 lines
731 B
Text
31 lines
731 B
Text
#
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# For a description of the syntax of this configuration file,
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# see the file kconfig-language.txt in the NuttX tools repository.
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#
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config TESTING_SIG_SP_TEST
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tristate "Signal SP restore test"
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default n
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depends on BUILD_FLAT && ARCH_ARM
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---help---
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Test that modifying SP (REG_R13) in saved register context
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during a signal handler is honored on exception return.
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This verifies the SP context relocation in arm_sigdeliver.
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Only available for flat builds on ARM.
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if TESTING_SIG_SP_TEST
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config TESTING_SIG_SP_TEST_PROGNAME
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string "Program name"
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default "sig_sp_test"
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config TESTING_SIG_SP_TEST_PRIORITY
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int "Task priority"
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default 100
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config TESTING_SIG_SP_TEST_STACKSIZE
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int "Stack size"
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default 4096
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endif
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