checkasm/riscv: report an error upon SIGILL

Terminating the whole checkasm process is not very helpful. This will
report if an illegal instruction occurs while executing a tested
function. This is a common occurrence whilst developping RISC-V
assembler, due to the compatibility between vector configuration and
instruction done at run-time.

1 files changed, 9 insertions, 2 deletions

diff --git a/tests/checkasm/checkasm.h b/tests/checkasm/checkasm.h
index 8a1df43ab6..41093f2dca 100644
--- a/tests/checkasm/checkasm.h
+++ b/tests/checkasm/checkasm.h
@@ -23,6 +23,7 @@
 #ifndef TESTS_CHECKASM_CHECKASM_H
 #define TESTS_CHECKASM_CHECKASM_H
 
+#include <setjmp.h>
 #include <stdint.h>
 #include "config.h"
 
@@ -211,14 +212,20 @@ void checkasm_checked_call(void *func, ...);
                       checked_call(func_new, 0, 0, 0, 0, 0, 0, 0, __VA_ARGS__,\
                                    7, 6, 5, 4, 3, 2, 1, 0, 0, 0, 0, 0, 0, 0, 0))
 #elif ARCH_RISCV
-void checkasm_set_function(void *);
+void checkasm_set_function(void *, sigjmp_buf);
 void *checkasm_get_wrapper(void);
+void checkasm_handle_signal(int signum);
 
 #if (__riscv_xlen == 64) && defined (__riscv_d)
 #define declare_new(ret, ...) \
+    int checked_call_signum = 0; \
+    sigjmp_buf checked_call_jb; \
     ret (*checked_call)(__VA_ARGS__) = checkasm_get_wrapper();
 #define call_new(...) \
-    (checkasm_set_function(func_new), checked_call(__VA_ARGS__))
+    (checkasm_set_function(func_new, checked_call_jb), \
+     (checked_call_signum = sigsetjmp(checked_call_jb, 1)) == 0 \
+        ? checked_call(__VA_ARGS__) \
+        : (checkasm_fail_signal(checked_call_signum), 0))
 #endif
 #else
 #define declare_new(ret, ...)