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Disassembly unit test: memory error 

This patch adds a unit test about memory error occurs on reading
memory, and check MEMORY_ERROR exception is always thrown.

gdb:

2017-01-26  Yao Qi  <yao.qi@linaro.org>

	* disasm-selftests.c (memory_error_test): New function.
	(_initialize_disasm_selftests): Register memory_error_test.
This commit is contained in:
Yao Qi 2017-01-26 14:29:19 +00:00
parent 79843d45f7
commit 658ca58c4d
2 changed files with 47 additions and 0 deletions
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5
gdb/ChangeLog
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@ -1,3 +1,8 @@
2017-01-26 Yao Qi <yao.qi@linaro.org>
* disasm-selftests.c (memory_error_test): New function.
(_initialize_disasm_selftests): Register memory_error_test.
2017-01-26 Yao Qi <yao.qi@linaro.org>
* Makefile.in (SFILES): Add disasm-selftests.c and

42
gdb/disasm-selftests.c
View File

@ -164,6 +164,47 @@ print_one_insn_test (struct gdbarch *gdbarch)
SELF_CHECK (di.print_insn (0) == len);
}
/* Test disassembly on memory error. */
static void
memory_error_test (struct gdbarch *gdbarch)
{
class gdb_disassembler_test : public gdb_disassembler
{
public:
gdb_disassembler_test (struct gdbarch *gdbarch)
: gdb_disassembler (gdbarch, null_stream (),
gdb_disassembler_test::read_memory)
{
}
static int read_memory (bfd_vma memaddr, gdb_byte *myaddr,
unsigned int len,
struct disassemble_info *info)
{
/* Always return an error. */
return -1;
}
};
gdb_disassembler_test di (gdbarch);
bool saw_memory_error = false;
TRY
{
di.print_insn (0);
}
CATCH (ex, RETURN_MASK_ERROR)
{
if (ex.error == MEMORY_ERROR)
saw_memory_error = true;
}
END_CATCH
/* Expect MEMORY_ERROR. */
SELF_CHECK (saw_memory_error);
}
} // namespace selftests
#endif /* GDB_SELF_TEST */
@ -175,5 +216,6 @@ _initialize_disasm_selftests (void)
{
#if GDB_SELF_TEST
register_self_test_foreach_arch (selftests::print_one_insn_test);
register_self_test_foreach_arch (selftests::memory_error_test);
#endif
}