intel/llvm
1
0
Fork 0
mirror of https://github.com/intel/llvm.git synced 2026-01-19 09:31:59 +08:00
Code Issues Packages Projects Releases Wiki Activity

Revert "[lldb][NFC] Force some logging on to TestCortexMExceptionUnwind.py"

Browse Source 
This reverts commit 336503c4e1.
This commit is contained in:
Jason Molenda
2025-09-10 22:58:30 -07:00
parent 336503c4e1
commit 6a71938770
1 changed files with 26 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

32
lldb/test/API/functionalities/unwind/cortex-m-exception/TestCortexMExceptionUnwind.py
View File

@@ -12,18 +12,34 @@ from lldbsuite.test import lldbutil
class TestCortexMExceptionUnwind(TestBase):
NO_DEBUG_INFO_TESTCASE = True
# on the lldb-remote-linux-ubuntu CI, the binary.json's triple of
# armv7m-apple is not being set in the Target triple, and we're
# picking the wrong ABI plugin, ABISysV_arm.
# ABISysV_arm::CreateDefaultUnwindPlan() doesn't have a way to detect
# arm/thumb for a stack frame, or even the Target's triple for a
# Cortex-M part that is always thumb. It hardcodes r11 as the frame
# pointer register, which is correct for arm code but not thumb.
# It is never correct # on a Cortex-M target.
# The Darwin ABIMacOSX_arm diverges from AAPCS and always uses r7 for
# the frame pointer -- the thumb convention -- whether executing arm or
# thumb. So its CreateDefaultUnwindPlan picks the correct register for
# the frame pointer, and we can walk the stack.
# ABISysV_arm::CreateDefaultUnwindPlan will only get one frame and
# not be able to continue.
#
# This may only be occuring on a 32-bit Ubuntu bot; need to test
# 64-bit Ubuntu and confirm.
@skipUnlessDarwin
def test_no_fpu(self):
"""Test that we can backtrace correctly through an ARM Cortex-M Exception return stack"""
target = self.dbg.CreateTarget("")
exe = "binary.json"
with open(exe) as f:
exe_json = json.load(f)
exe_uuid = exe_json["uuid"]
triple = exe_json["triple"]
target = self.dbg.CreateTargetWithFileAndTargetTriple(exe, triple)
self.runCmd("target list")
self.runCmd("ima li -A -t -b")
target.AddModule(exe, "", exe_uuid)
self.assertTrue(target.IsValid())
core = self.getBuildArtifact("core")
@@ -32,8 +48,12 @@ class TestCortexMExceptionUnwind(TestBase):
process = target.LoadCore(core)
self.assertTrue(process.IsValid())
self.runCmd("target list")
self.runCmd("ima li -A -t -b")
if self.TraceOn():
self.runCmd("target list")
self.runCmd("image list")
self.runCmd("target modules dump sections")
self.runCmd("target modules dump symtab")
self.runCmd("bt")
thread = process.GetThreadAtIndex(0)
self.assertTrue(thread.IsValid())