9 Commits

Author SHA1 Message Date
Tamas Berghammer
f959520efc Fix test expectation in TestNoreturnUnwind
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
2015-04-23 10:54:27 +00:00
Robert Flack
13c7ad9cd2 Replace sys.platform skips in tests with @skip decorators which check against remote platform.
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
2015-03-30 14:12:17 +00:00
Tamas Berghammer
ab6216d050 Fix check in TestNoreturnUnwind
llvm-svn: 233546
2015-03-30 14:05:37 +00:00
Ying Chen
4e0587d26a xfail tests that failed with clang-3.7, gcc4.8.2 and on i386 to get buildbot green
Summary:
-Refer to bug https://buganizer.corp.google.com/issues/19893563
-Test log http://lab.llvm.org:8011/builders/lldb-x86_64-ubuntu-14.04-cmake/builds/1145

Test Plan: Run tests with different compiler and archs locally

Reviewers: sivachandra, ovyalov, chaoren, vharron

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D8573

llvm-svn: 233157
2015-03-25 00:39:25 +00:00
Pavel Labath
7257d28025 Skip symlinks to the original file when searching for debug info
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
2015-02-25 10:44:35 +00:00
Ed Maste
87ff93c0fd Restrict SigtrampUnwind test to Darwin only
It needs OS-specific knowledge and has not yet been adapted to other
systems.

llvm-svn: 227579
2015-01-30 16:33:02 +00:00
Jason Molenda
a05677126d Hoist the RegisterNumber class out of RegisterContextLLDB and make
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
2015-01-10 04:01:03 +00:00
Ed Maste
29a4584484 Fix new noreturn test on !darwin platforms
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
2014-11-10 17:22:47 +00:00
Jason Molenda
cf29675d95 Fix a corner case with the handling of noreturn functions.
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
2014-11-08 05:38:17 +00:00