https://github.com/da-viper updated
https://github.com/llvm/llvm-project/pull/157474
>From bfd997d47c554c3b33d1d7de184e202571d388a6 Mon Sep 17 00:00:00 2001
From: Ebuka Ezike <yerimy...@gmail.com>
Date: Mon, 8 Sep 2025 15:23:25 +0100
Subject: [PATCH 1/2] [lldb][test] StepUntil disable test for unsupported
linkers.
`INSERT BEFORE` keyword is not supported in current versions gold and mold
linkers. Since we cannot confirm accurately what linker and version is
available on the system and when it will be supported. We test it with a sample
program using the script keywords.
---
.../thread/step_until/TestStepUntil.py | 40 +++++++++++++++++
.../thread/step_until/TestStepUntilAPI.py | 43 +++++++++++++++++++
2 files changed, 83 insertions(+)
diff --git a/lldb/test/API/functionalities/thread/step_until/TestStepUntil.py
b/lldb/test/API/functionalities/thread/step_until/TestStepUntil.py
index 965da02ed0f98..90f207b5d4660 100644
--- a/lldb/test/API/functionalities/thread/step_until/TestStepUntil.py
+++ b/lldb/test/API/functionalities/thread/step_until/TestStepUntil.py
@@ -1,11 +1,50 @@
"""Test stepping over vrs. hitting breakpoints & subsequent stepping in
various forms."""
+from typing import Optional
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
+import tempfile
+
+
+def linker_script_syntax_unsupported() -> Optional[str]:
+ """Current versions of mold and gold linker does not support some syntax of
+ linker scripts, this maybe supported in future versions. check if it
compiles,
+ if not it is not supported.
+ """
+ with tempfile.TemporaryDirectory() as tmpdir:
+ output_path = os.path.join(tmpdir, "linker_support.out")
+ linker_script_path = os.path.join(tmpdir, "test.ld")
+
+ with open(linker_script_path, "w") as linker_script:
+ linker_script.write(
+ "SECTIONS {.text.ordered : { *(.text.ordered) *(.text.foo) } }
INSERT BEFORE .text;"
+ )
+
+ compiler_cmd = subprocess.Popen(
+ [
+ lldbplatformutil.getCompiler(),
+ f"-o {output_path}",
+ "-ffunction-sections",
+ f"-Wl,--script={linker_script_path}",
+ "-xc",
+ "-",
+ ],
+ shell=True,
+ universal_newlines=True,
+ stdin=subprocess.PIPE,
+ stdout=subprocess.PIPE,
+ stderr=subprocess.PIPE,
+ )
+ _, comp_err = compiler_cmd.communicate(
+ "int foo() { return 1; } int main() { return 0; }"
+ )
+ if len(comp_err) != 0:
+ return str(tmpdir) + " " + comp_err
+ return None
class StepUntilTestCase(TestBase):
def setUp(self):
@@ -112,6 +151,7 @@ def test_bad_line(self):
@no_debug_info_test
@skipIf(oslist=lldbplatformutil.getDarwinOSTriples() + ["windows"])
@skipIf(archs=no_match(["x86_64", "aarch64"]))
+ @skipTestIfFn(linker_script_syntax_unsupported)
def test_bad_line_discontinuous(self):
"""Test that we get an error if attempting to step outside the current
function -- and the function is discontinuous"""
diff --git
a/lldb/test/API/functionalities/thread/step_until/TestStepUntilAPI.py
b/lldb/test/API/functionalities/thread/step_until/TestStepUntilAPI.py
index 59e028acf014c..44e764c43cd20 100644
--- a/lldb/test/API/functionalities/thread/step_until/TestStepUntilAPI.py
+++ b/lldb/test/API/functionalities/thread/step_until/TestStepUntilAPI.py
@@ -1,8 +1,48 @@
+from typing import Optional
+
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
+import tempfile
+
+
+def linker_script_syntax_unsupported() -> Optional[str]:
+ """Current versions of mold and gold linker does not support some syntax of
+ linker scripts, this maybe supported in future versions. check if it
compiles,
+ if not it is not supported.
+ """
+ with tempfile.TemporaryDirectory() as tmpdir:
+ output_path = os.path.join(tmpdir, "linker_support.out")
+ linker_script_path = os.path.join(tmpdir, "test.ld")
+
+ with open(linker_script_path, "w") as linker_script:
+ linker_script.write(
+ "SECTIONS {.text.ordered : { *(.text.ordered) *(.text.foo) } }
INSERT BEFORE .text;"
+ )
+
+ compiler_cmd = subprocess.Popen(
+ [
+ lldbplatformutil.getCompiler(),
+ f"-o {output_path}",
+ "-ffunction-sections",
+ f"-Wl,--script={linker_script_path}",
+ "-xc",
+ "-",
+ ],
+ shell=True,
+ universal_newlines=True,
+ stdin=subprocess.PIPE,
+ stdout=subprocess.PIPE,
+ stderr=subprocess.PIPE,
+ )
+ _, comp_err = compiler_cmd.communicate(
+ "int foo() { return 1; } int main() { return 0; }"
+ )
+ if len(comp_err) != 0:
+ return comp_err
+ return None
class TestStepUntilAPI(TestBase):
NO_DEBUG_INFO_TESTCASE = True
@@ -74,6 +114,7 @@ def test_hitting(self):
@skipIf(oslist=lldbplatformutil.getDarwinOSTriples() + ["windows"])
@skipIf(archs=no_match(["x86_64", "aarch64"]))
+ @skipTestIfFn(linker_script_syntax_unsupported)
def test_hitting_discontinuous(self):
"""Test SBThread.StepOverUntil - targeting a line and hitting it --
with
discontinuous functions"""
@@ -93,6 +134,7 @@ def test_missing(self):
@skipIf(oslist=lldbplatformutil.getDarwinOSTriples() + ["windows"])
@skipIf(archs=no_match(["x86_64", "aarch64"]))
+ @skipTestIfFn(linker_script_syntax_unsupported)
def test_missing_discontinuous(self):
"""Test SBThread.StepOverUntil - targeting a line and missing it by
stepping out to call site -- with discontinuous functions"""
@@ -120,6 +162,7 @@ def test_bad_line(self):
@skipIf(oslist=lldbplatformutil.getDarwinOSTriples() + ["windows"])
@skipIf(archs=no_match(["x86_64", "aarch64"]))
+ @skipTestIfFn(linker_script_syntax_unsupported)
def test_bad_line_discontinuous(self):
"""Test that we get an error if attempting to step outside the current
function -- and the function is discontinuous"""
>From 4d2d7648158204bddebcdd6541bc14f2f15db4b6 Mon Sep 17 00:00:00 2001
From: Ebuka Ezike <yerimy...@gmail.com>
Date: Tue, 9 Sep 2025 11:58:31 +0100
Subject: [PATCH 2/2] [lldb][test] StepUntil disable test for unsupported
linkers.
`INSERT BEFORE` keyword is not supported in current versions gold and mold
linkers. Since we cannot confirm accurately what linker and version is
available on the system and when it will be supported. We test it with a sample
program using the script keywords.
---
.../Python/lldbsuite/test/lldbplatformutil.py | 38 ++++++++++++++++
.../thread/step_until/TestStepUntil.py | 43 +------------------
.../thread/step_until/TestStepUntilAPI.py | 41 +-----------------
3 files changed, 40 insertions(+), 82 deletions(-)
diff --git a/lldb/packages/Python/lldbsuite/test/lldbplatformutil.py
b/lldb/packages/Python/lldbsuite/test/lldbplatformutil.py
index cea6270695dc0..ed6365266118a 100644
--- a/lldb/packages/Python/lldbsuite/test/lldbplatformutil.py
+++ b/lldb/packages/Python/lldbsuite/test/lldbplatformutil.py
@@ -8,6 +8,8 @@
import subprocess
import sys
import os
+import tempfile
+from typing import Optional
from packaging import version
from urllib.parse import urlparse
@@ -44,6 +46,42 @@ def check_first_register_readable(test_case):
% test_case.getArchitecture()
)
+def linker_script_syntax_unsupported() -> Optional[str]:
+ """Current versions of mold(2.40.4) and gold(2.44) linker does not support
some syntax of
+ linker scripts, this maybe supported in future versions. check if it
compiles,
+ if not it is not supported.
+ """
+ with tempfile.TemporaryDirectory() as tmpdir:
+ output_path = os.path.join(tmpdir, "linker_support.out")
+ linker_script_path = os.path.join(tmpdir, "test.ld")
+
+ with open(linker_script_path, "w") as linker_script:
+ linker_script.write(
+ "SECTIONS {.text.ordered : { *(.text.ordered) *(.text.foo) } }
INSERT BEFORE .text;"
+ )
+
+ compiler_cmd = subprocess.Popen(
+ [
+ getCompiler(),
+ f"-o {output_path}",
+ "-ffunction-sections",
+ f"-Wl,--script={linker_script_path}",
+ "-xc",
+ "-",
+ ],
+ shell=True,
+ universal_newlines=True,
+ stdin=subprocess.PIPE,
+ stdout=subprocess.PIPE,
+ stderr=subprocess.PIPE,
+ )
+ _, compiler_err = compiler_cmd.communicate(
+ "int foo() { return 1; } int main() { return 0; }"
+ )
+
+ if len(compiler_err) != 0:
+ return compiler_err
+ return None
def _run_adb_command(cmd, device_id):
device_id_args = []
diff --git a/lldb/test/API/functionalities/thread/step_until/TestStepUntil.py
b/lldb/test/API/functionalities/thread/step_until/TestStepUntil.py
index 90f207b5d4660..0b726b7afddbb 100644
--- a/lldb/test/API/functionalities/thread/step_until/TestStepUntil.py
+++ b/lldb/test/API/functionalities/thread/step_until/TestStepUntil.py
@@ -1,50 +1,9 @@
"""Test stepping over vrs. hitting breakpoints & subsequent stepping in
various forms."""
-from typing import Optional
-
-import lldb
from lldbsuite.test.decorators import *
+from lldbsuite.test.lldbplatformutil import linker_script_syntax_unsupported
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
-import tempfile
-
-
-def linker_script_syntax_unsupported() -> Optional[str]:
- """Current versions of mold and gold linker does not support some syntax of
- linker scripts, this maybe supported in future versions. check if it
compiles,
- if not it is not supported.
- """
- with tempfile.TemporaryDirectory() as tmpdir:
- output_path = os.path.join(tmpdir, "linker_support.out")
- linker_script_path = os.path.join(tmpdir, "test.ld")
-
- with open(linker_script_path, "w") as linker_script:
- linker_script.write(
- "SECTIONS {.text.ordered : { *(.text.ordered) *(.text.foo) } }
INSERT BEFORE .text;"
- )
-
- compiler_cmd = subprocess.Popen(
- [
- lldbplatformutil.getCompiler(),
- f"-o {output_path}",
- "-ffunction-sections",
- f"-Wl,--script={linker_script_path}",
- "-xc",
- "-",
- ],
- shell=True,
- universal_newlines=True,
- stdin=subprocess.PIPE,
- stdout=subprocess.PIPE,
- stderr=subprocess.PIPE,
- )
- _, comp_err = compiler_cmd.communicate(
- "int foo() { return 1; } int main() { return 0; }"
- )
-
- if len(comp_err) != 0:
- return str(tmpdir) + " " + comp_err
- return None
class StepUntilTestCase(TestBase):
def setUp(self):
diff --git
a/lldb/test/API/functionalities/thread/step_until/TestStepUntilAPI.py
b/lldb/test/API/functionalities/thread/step_until/TestStepUntilAPI.py
index 44e764c43cd20..85beaf29af2fb 100644
--- a/lldb/test/API/functionalities/thread/step_until/TestStepUntilAPI.py
+++ b/lldb/test/API/functionalities/thread/step_until/TestStepUntilAPI.py
@@ -1,48 +1,9 @@
-from typing import Optional
-import lldb
from lldbsuite.test.decorators import *
+from lldbsuite.test.lldbplatformutil import linker_script_syntax_unsupported
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
-import tempfile
-
-
-def linker_script_syntax_unsupported() -> Optional[str]:
- """Current versions of mold and gold linker does not support some syntax of
- linker scripts, this maybe supported in future versions. check if it
compiles,
- if not it is not supported.
- """
- with tempfile.TemporaryDirectory() as tmpdir:
- output_path = os.path.join(tmpdir, "linker_support.out")
- linker_script_path = os.path.join(tmpdir, "test.ld")
-
- with open(linker_script_path, "w") as linker_script:
- linker_script.write(
- "SECTIONS {.text.ordered : { *(.text.ordered) *(.text.foo) } }
INSERT BEFORE .text;"
- )
-
- compiler_cmd = subprocess.Popen(
- [
- lldbplatformutil.getCompiler(),
- f"-o {output_path}",
- "-ffunction-sections",
- f"-Wl,--script={linker_script_path}",
- "-xc",
- "-",
- ],
- shell=True,
- universal_newlines=True,
- stdin=subprocess.PIPE,
- stdout=subprocess.PIPE,
- stderr=subprocess.PIPE,
- )
- _, comp_err = compiler_cmd.communicate(
- "int foo() { return 1; } int main() { return 0; }"
- )
- if len(comp_err) != 0:
- return comp_err
- return None
class TestStepUntilAPI(TestBase):
NO_DEBUG_INFO_TESTCASE = True
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