panic: fix checks for corrupted backtrace in the test cases

"CORRUPTED" needs to be checked before ELF SHA256. Use
expect_backtrace in every test (which checks for it), remove extra
check for CORRUPTED.

tools/test_apps/system/panic/panic_tests.py

@@ -19,9 +19,9 @@ def task_wdt_inner(env, test_name):
         dut.expect("CPU 0: main")
         dut.expect(re.compile(r"abort\(\) was called at PC [0-9xa-f]+ on core 0"))
         dut.expect_none("register dump:")
-        dut.expect("Backtrace:")
+        dut.expect_backtrace()
         dut.expect_elf_sha256()
-        dut.expect_none("CORRUPTED", "Guru Meditation")
+        dut.expect_none("Guru Meditation")
         test_common(dut, test_name)
 
 
@@ -29,12 +29,12 @@ def int_wdt_inner(env, test_name):
     with get_dut(env, test_name, "test_int_wdt", qemu_wdt_enable=True) as dut:
         dut.expect_gme("Interrupt wdt timeout on CPU0")
         dut.expect_reg_dump(0)
-        dut.expect("Backtrace:")
-        dut.expect_none("CORRUPTED", "Guru Meditation")
+        dut.expect_backtrace()
+        dut.expect_none("Guru Meditation")
         dut.expect_reg_dump(1)
-        dut.expect("Backtrace:")
+        dut.expect_backtrace()
         dut.expect_elf_sha256()
-        dut.expect_none("CORRUPTED", "Guru Meditation")
+        dut.expect_none("Guru Meditation")
         test_common(dut, test_name)
 
 
@@ -44,11 +44,11 @@ def int_wdt_cache_disabled_inner(env, test_name):
         dut.expect_gme("Interrupt wdt timeout on CPU0")
         dut.expect_reg_dump(0)
         dut.expect("Backtrace:")
-        dut.expect_none("CORRUPTED", "Guru Meditation")
+        dut.expect_none("Guru Meditation")
         dut.expect_reg_dump(1)
-        dut.expect("Backtrace:")
+        dut.expect_backtrace()
         dut.expect_elf_sha256()
-        dut.expect_none("CORRUPTED", "Guru Meditation")
+        dut.expect_none("Guru Meditation")
         test_common(dut, test_name)
 
 
@@ -57,18 +57,18 @@ def cache_error_inner(env, test_name):
         dut.expect("Re-enable cpu cache.")
         dut.expect_gme("Cache disabled but cached memory region accessed")
         dut.expect_reg_dump(0)
-        dut.expect("Backtrace:")
+        dut.expect_backtrace()
         dut.expect_elf_sha256()
-        dut.expect_none("CORRUPTED", "Guru Meditation")
+        dut.expect_none("Guru Meditation")
         test_common(dut, test_name)
 
 
 def abort_inner(env, test_name):
     with get_dut(env, test_name, "test_abort") as dut:
         dut.expect(re.compile(r"abort\(\) was called at PC [0-9xa-f]+ on core 0"))
-        dut.expect("Backtrace:")
+        dut.expect_backtrace()
         dut.expect_elf_sha256()
-        dut.expect_none("CORRUPTED", "Guru Meditation", "Re-entered core dump")
+        dut.expect_none("Guru Meditation", "Re-entered core dump")
         test_common(dut, test_name)
 
 
@@ -76,9 +76,9 @@ def storeprohibited_inner(env, test_name):
     with get_dut(env, test_name, "test_storeprohibited") as dut:
         dut.expect_gme("StoreProhibited")
         dut.expect_reg_dump(0)
-        dut.expect("Backtrace:")
+        dut.expect_backtrace()
         dut.expect_elf_sha256()
-        dut.expect_none("CORRUPTED", "Guru Meditation")
+        dut.expect_none("Guru Meditation")
         test_common(dut, test_name)
 
 
@@ -87,9 +87,9 @@ def stack_overflow_inner(env, test_name):
         dut.expect_gme("Unhandled debug exception")
         dut.expect("Stack canary watchpoint triggered (main)")
         dut.expect_reg_dump(0)
-        dut.expect("Backtrace:")
+        dut.expect_backtrace()
         dut.expect_elf_sha256()
-        dut.expect_none("CORRUPTED", "Guru Meditation")
+        dut.expect_none("Guru Meditation")
         test_common(dut, test_name)
 
 
@@ -97,9 +97,9 @@ def illegal_instruction_inner(env, test_name):
     with get_dut(env, test_name, "test_illegal_instruction") as dut:
         dut.expect_gme("IllegalInstruction")
         dut.expect_reg_dump(0)
-        dut.expect("Backtrace:")
+        dut.expect_backtrace()
         dut.expect_elf_sha256()
-        dut.expect_none("CORRUPTED", "Guru Meditation")
+        dut.expect_none("Guru Meditation")
         test_common(dut, test_name)
 
 
@@ -109,5 +109,5 @@ def instr_fetch_prohibited_inner(env, test_name):
         dut.expect_reg_dump(0)
         dut.expect_backtrace()
         dut.expect_elf_sha256()
-        dut.expect_none("CORRUPTED", "Guru Meditation")
+        dut.expect_none("Guru Meditation")
         test_common(dut, test_name)