Currently most of the test files have a separate dwarf and a separate
dsym test with almost identical content (only the build step is
different). With adding dwo symbol file handling to the test suit it
would increase this to a 3-way duplication. The purpose of this change
is to eliminate this redundancy with generating 2 test case (one dwarf
and one dsym) for each test function specified (dwo handling will be
added at a later commit).
Main design goals:
* There should be no boilerplate code in each test file to support the
multiple debug info in most of the tests (custom scenarios are
acceptable in special cases) so adding a new test case is easier and
we can't miss one of the debug info type.
* In case of a test failure, the debug symbols used during the test run
have to be cleanly visible from the output of dotest.py to make
debugging easier both from build bot logs and from local test runs
* Each test case should have a unique, fully qualified name so we can
run exactly 1 test with "-f <test-case>.<test-function>" syntax
* Test output should be grouped based on test files the same way as it
happens now (displaying dwarf/dsym results separately isn't
preferable)
Proposed solution (main logic in lldbtest.py, rest of them are test
cases fixed up for the new style):
* Have only 1 test fuction in the test files what will run for all
debug info separately and this test function should call just
"self.build(...)" to build an inferior with the right debug info
* When a class is created by python (the class object, not the class
instance), we will generate a new test method for each debug info
format in the test class with the name "<test-function>_<debug-info>"
and remove the original test method. This way unittest2 see multiple
test methods (1 for each debug info, pretty much as of now) and will
handle the test selection and the failure reporting correctly (the
debug info will be visible from the end of the test name)
* Add new annotation @no_debug_info_test to disable the generation of
multiple tests for each debug info format when the test don't have an
inferior
Differential revision: http://reviews.llvm.org/D13028
llvm-svn: 248883
Don't chane the CFI information when a conditional instruction
is emulated (eg.: popeq {r0, pc}) because the CFI for the next
instruction should be the same as the CFI for the current instruction.
Differential revision: http://reviews.llvm.org/D11258
llvm-svn: 242519
These instructions confusing the unwind code because in case of a
push it assumes that the original valu of a register is pushed to
the stack what is not neccessarily true in case of SP. The same is
true for the pop (in the opposite way).
Differential revision: http://reviews.llvm.org/D10806
llvm-svn: 241051
The emulation of the branches are required by the new stack
unwinding logic to reinstantiate the prologue at the right place.
Differential revision: http://reviews.llvm.org/D10702
llvm-svn: 240769
This test case generates new tests from the source files dropped into
its directory. For stress testing stack unwinding it steps through the
code line by line and then tests unwinding from each instruction.
llvm-svn: 240030
The test case lookinhg for the abort function in the stack trace.
Previously it lookd for a function which ends with "abort" but on some
system there are multiple such functions (e.g.: on android abort calls
__libc_android_abort) what made the test fail. This CL change the
behaviour to look for the abort function based on a fix list of names.
llvm-svn: 235584
Adds @skipIfPlatform and @skipUnlessPlatform decorators which will skip if /
unless the target platform is in the provided platform list.
Test Plan:
ninja check-lldb shows no regressions.
When running cross platform, tests which cannot run on the target platform are
skipped.
Differential Revision: http://reviews.llvm.org/D8665
llvm-svn: 233547
Summary:
Symbols::LocateExecutableSymbolFile tries to locate the file in containing the debug info in a
splitdebug configuration. It tries to skip over the original file in its search path, but it was
easily fooled by symlinks. This changes the function to use llvm::sys::fs::equivalent, which can
correctly compare symlinks.
As a side effect, I had to fix one test because the address for the "abort" function resolves on
my system to "__GI_abort" now. With the debug info, the libc on my system contains two symbols
associated with the address of the abort function, and lldb prefers __GI_abort, possibly because
the debug info is associated with it. It would be nice at some point to have it prefer the public
symbol name.
Reviewers: emaste, zturner
Subscribers: lldb-commits
Differential Revision: http://reviews.llvm.org/D7836
llvm-svn: 230476
it more generally available.
Add checks to UnwindAssembly_x86::AugmentUnwindPlanFromCallSite() so
that it won't try to augment an UnwindPlan that already describes
the function epilogue.
Add a test case for backtracing out of _sigtramp on Darwin systems.
This could probably be adapted to test the same thing on linux/bsd but
the function names of sigtramp and kill are probably platform
specific and I'm not sure what they should be.
llvm-svn: 225578
r221575 introduced a NoreturnUnwind test that did not skip the dsym
test on non-darwin platforms, and had the @dwarf_test case as an exact
copy of the dsym case (including the test name, test_with_dsym).
llvm-svn: 221611
If a noreturn function was the last function in a section,
we wouldn't correctly back up the saved-pc value into the
correct section leading to us showing the wrong function in
the backtrace.
Also add a backtrace test with an attempt to elicit this
particular layout. It happens to work out with clang -Os
but other compilers may not quite get the same layout I'm
getting at that opt setting. We'll still be exercising the
basic noreturn handling in the unwinder even if we don't get
one function at the very end of a section.
<rdar://problem/16051613>
llvm-svn: 221575
Tamas Berghammer