mirror of
https://github.com/cirosantilli/linux-kernel-module-cheat.git
synced 2026-01-22 17:55:57 +01:00
gem5: classify all test failures
To skip tests, create a decent list of "which instructions a test use" and "which instructions each simulator does not support".
This commit is contained in:
Ciro Santilli 六四事件 法轮功
@@ -50,7 +50,8 @@ class PathProperties:
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# We should get rid of this if we ever properly implement dependency graphs.
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'extra_objs_lkmc_common': False,
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'gem5_unimplemented_instruction': False,
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'qemu_unimplemented_instruction': False,
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# Fully, or partially unimplemented.
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'gem5_unimplemented_syscall': False,
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# For some reason QEMU fails with SIGSEGV on int syscalls in x86_64.
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'qemu_x86_64_int_syscall': False,
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'interactive': False,
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@@ -62,6 +63,7 @@ class PathProperties:
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# it only generates intermediate object files. Therefore it
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# should not be run while testing.
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'no_executable': False,
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'qemu_unimplemented_instruction': False,
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# The script requires a non-trivial to determine argument to be passed to run properly.
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'requires_argument': False,
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# Let's not test stuff that relies on the internet by default, user might be offline,
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@@ -95,6 +97,34 @@ class PathProperties:
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'test_run_args': {},
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# Examples that can be built in userland.
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'userland': False,
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# Known instructions that this test uses, and which may not be implemented
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# in a given simulator, in which case we skip.
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'uses_instructions': {},
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}
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unimplemented_instructions = {
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'gem5': {
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'arm': {
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'vcvta',
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},
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'x86_64': {
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'fcomi',
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'fcomip',
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'fsqrt',
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'popcnt',
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'rdrand',
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'rdtscp',
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'vfmadd132pd',
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},
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},
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'qemu': {
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'x86_64': {
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'popcnt',
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'rdtscp',
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'rdrand',
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'vfmadd132pd',
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}
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},
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}
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'''
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@@ -160,6 +190,17 @@ class PathProperties:
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# Our C compiler does not suppport SVE yet.
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# https://cirosantilli.com/linux-kernel-module-cheat#update-gcc-gcc-supported-by-buildroot
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os.path.splitext(self.path_components[-1])[1] == '.c' and self['arm_sve']
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) and not (
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# C++ multithreading in static does not seem to work:
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# https://cirosantilli.com/linux-kernel-module-cheat#user-mode-static-executables-with-dynamic-libraries
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os.path.splitext(self.path_components[-1])[1] == '.cpp' and (
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# TODO the better check here would be for 'static'
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# to factor out with test-executable logic, but lazy.
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# env['static'] and
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env['emulator'] == 'gem5' and
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'cpus' in self['test_run_args'] and
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self['test_run_args']['cpus'] > 1
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)
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)
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)
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@@ -187,8 +228,8 @@ class PathProperties:
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not (
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env['emulator'] == 'gem5' and
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(
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self['gem5_unimplemented_instruction'] or
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# gem5 does not report signals properly.
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self['gem5_unimplemented_syscall'] or
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# https://github.com/cirosantilli/linux-kernel-module-cheat/issues/101
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self['signal_received'] is not None or
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self['requires_dynamic_library'] or
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self['requires_semihosting'] or
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@@ -198,8 +239,16 @@ class PathProperties:
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not (
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env['emulator'] == 'qemu' and
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(
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self['requires_m5ops'] or
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self['qemu_unimplemented_instruction']
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self['requires_m5ops']
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)
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) and
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not (
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env['arch'] in self['uses_instructions'] and
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env['emulator'] in self.unimplemented_instructions and
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env['arch'] in self.unimplemented_instructions[env['emulator']] and
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(
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self.unimplemented_instructions[env['emulator']][env['arch']] &
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self['uses_instructions'][env['arch']]
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)
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)
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)
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@@ -403,7 +452,7 @@ path_properties_tuples = (
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},
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'vcvta.S': {
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'arm_aarch32': True,
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'gem5_unimplemented_instruction': True,
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'uses_instructions': {'arm': {'vcvta'}}
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},
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}
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),
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@@ -450,32 +499,34 @@ path_properties_tuples = (
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{},
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{
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'freestanding': freestanding_properties,
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'sqrt_x87.c': {'uses_instructions': {'x86_64': {'fsqrt'}}},
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}
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),
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'intrinsics': (
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{},
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{
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'rdtscp.c': {
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'gem5_unimplemented_instruction': True,
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'qemu_unimplemented_instruction': True,
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},
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'rdtscp.c': {'uses_instructions': {'x86_64': {'rdtscp'}}},
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}
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),
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'div_overflow.S': {'signal_received': signal.Signals.SIGFPE},
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'div_zero.S': {'signal_received': signal.Signals.SIGFPE},
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'fabs.S': {'uses_instructions': {'x86_64': {'fcomip'}}},
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'fadd.S': {'uses_instructions': {'x86_64': {'fcomi'}}},
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'faddp.S': {'uses_instructions': {'x86_64': {'fcomip'}}},
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'fchs.S': {'uses_instructions': {'x86_64': {'fcomip'}}},
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'fild.S': {'uses_instructions': {'x86_64': {'fcomip'}}},
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'fld1.S': {'uses_instructions': {'x86_64': {'fcomip'}}},
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'fldz.S': {'uses_instructions': {'x86_64': {'fcomip'}}},
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'fscale.S': {'uses_instructions': {'x86_64': {'fcomip'}}},
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'fsqrt.S': {'uses_instructions': {'x86_64': {'fcomip', 'fsqrt'}}},
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'fxch.S': {'uses_instructions': {'x86_64': {'fcomip'}}},
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'lkmc_assert_eq_fail.S': {'signal_received': signal.Signals.SIGABRT},
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'lkmc_assert_memcmp_fail.S': {'signal_received': signal.Signals.SIGABRT},
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'popcnt.S': {'qemu_unimplemented_instruction': True},
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'rdrand.S': {
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'gem5_unimplemented_instruction': True,
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'qemu_unimplemented_instruction': True,
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},
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'rdtscp.S': {'qemu_unimplemented_instruction': True},
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'popcnt.S': {'uses_instructions': {'x86_64': {'popcnt'}}},
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'rdrand.S': {'uses_instructions': {'x86_64': {'rdrand'}}},
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'rdtscp.S': {'uses_instructions': {'x86_64': {'rdtscp'}}},
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'ring0.c': {'signal_received': signal.Signals.SIGSEGV},
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'vfmadd132pd.S': {
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'gem5_unimplemented_instruction': True,
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'qemu_unimplemented_instruction': True,
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},
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'vfmadd132pd.S': {'uses_instructions': {'x86_64': {'vfmadd132pd'}}},
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}
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),
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'lkmc_assert_fail.S': {
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@@ -506,14 +557,7 @@ path_properties_tuples = (
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'cpp': (
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{},
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{
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'atomic.cpp': {
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'test_run_args': {'cpus': 3},
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# LDADD from LSE
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# https://cirosantilli.com/linux-kernel-module-cheat#arm-lse
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# Implemented on master:
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# https://gem5-review.googlesource.com/c/public/gem5/+/19812
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'gem5_unimplemented_instruction': True,
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},
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'atomic.cpp': {'test_run_args': {'cpus': 3}},
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'count.cpp': {'more_than_1s': True},
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'sleep_for.cpp': {
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'more_than_1s': True,
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@@ -544,8 +588,16 @@ path_properties_tuples = (
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{
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'ctrl_alt_del.c': {'requires_sudo': True},
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'init_env_poweroff.c': {'requires_sudo': True},
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'mmap_anonymous_touch.c': {
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# https://github.com/cirosantilli/linux-kernel-module-cheat/issues/103
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'gem5_unimplemented_syscall': True
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},
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'myinsmod.c': {'requires_sudo': True},
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'myrmmod.c': {'requires_sudo': True},
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'open_o_tmpfile.c': {
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# https://github.com/cirosantilli/linux-kernel-module-cheat/issues/100
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'gem5_unimplemented_syscall': True
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},
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'pagemap_dump.c': {'requires_argument': True},
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'poweroff.c': {'requires_sudo': True},
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'proc_events.c': {'requires_sudo': True},
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@@ -575,6 +627,10 @@ path_properties_tuples = (
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'pthread_self.c': {
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'test_run_args': {'cpus': 2},
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},
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'mmap_file.c': {
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# https://github.com/cirosantilli/linux-kernel-module-cheat/issues/102
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'gem5_unimplemented_syscall': True
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},
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'wget.c': {'requires_internet': True},
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'sleep_forever.c': {'more_than_1s': True},
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'virt_to_phys_test.c': {'more_than_1s': True},
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