kselftest: arm64: fake_sigreturn_bad_magic

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Add a simple fake_sigreturn testcase which builds a ucontext_t with a bad
magic header and place it onto the stack. Expects a SIGSEGV on test PASS.

Introduce a common utility assembly trampoline function to invoke a
sigreturn while placing the provided sigframe at wanted alignment and
also an helper to make space when needed inside the sigframe reserved
area.

Reviewed-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

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Cristian Marussi 2019-10-25 18:57:12 +01:00 • committed by Catalin Marinas

parent 34306b05d3

commit 6c2aa42845

6 changed files with 169 additions and 1 deletions

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2

tools/testing/selftests/arm64/signal/Makefile

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64

tools/testing/selftests/arm64/signal/signals.S

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tools/testing/selftests/arm64/signal/test_signals_utils.h

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tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_bad_magic.c

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tools/testing/selftests/arm64/signal/testcases/testcases.c

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tools/testing/selftests/arm64/signal/testcases/testcases.h

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