On 17.11.20 00:53, Simon Glass wrote:
On Wed, 11 Nov 2020 at 16:30, Heinrich Schuchardt xypron.glpk@gmx.de wrote:
Provide a unit test that causes an illegal instruction to occur.
The test can be run with the following commands:
=> setenv efi_selftest exception => bootefi selftestThis might be the output:
Executing 'exception' EFI application triggers exception. Illegal instruction pc = 0x1444d016, pc_reloc = 0xffffaa078e8dd016 UEFI image [0x0000000000000000:0xffffffffffffffff] '/\selftest' UEFI image [0x000000001444b000:0x0000000014451fff] pc=0x2016 '/bug.efi' Resetting ...It would tell us that the exception was triggered by an instruction 0x2016 bytes after the load address of the binary with filename /bug.efi.
Signed-off-by: Heinrich Schuchardt xypron.glpk@gmx.de
v2: no change
lib/efi_selftest/efi_selftest_miniapp_exception.c | 2 ++ 1 file changed, 2 insertions(+)
Reviewed-by: Simon Glass sjg@chromium.org
diff --git a/lib/efi_selftest/efi_selftest_miniapp_exception.c b/lib/efi_selftest/efi_selftest_miniapp_exception.c index 63c63d75f1..59b7e5100a 100644 --- a/lib/efi_selftest/efi_selftest_miniapp_exception.c +++ b/lib/efi_selftest/efi_selftest_miniapp_exception.c @@ -33,6 +33,8 @@ efi_status_t EFIAPI efi_main(efi_handle_t handle, asm volatile (".word 0xe7f7defb\n"); #elif defined(CONFIG_RISCV) asm volatile (".word 0xffffffff\n"); +#elif defined(CONFIG_SANDBOX)
asm volatile (".word 0xffffffff\n");Does this work on ARM hosts?
Yes it works on aarch64.
Best regards
Heinrich
#elif defined(CONFIG_X86) asm volatile (".word 0xffff\n");
#endif
2.28.0