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Michał Górny ea953b9d9a [compiler-rt] [test] Handle missing ld.gold gracefully 
Fix the is_binutils_lto_supported() function to handle missing
executables gracefully.  Currently, the function does not catch
exceptions from subprocess.Popen() and therefore causes lit to crash
if config.gold_executable does not specify a valid executable:

```
lit: /usr/lib/python3.11/site-packages/lit/TestingConfig.py:136: fatal: unable to parse config file '/tmp/portage/sys-libs/compiler-rt-
15.0.0/work/compiler-rt/test/lit.common.cfg.py', traceback: Traceback (most recent call last):
  File "/usr/lib/python3.11/site-packages/lit/TestingConfig.py", line 125, in load_from_path
    exec(compile(data, path, 'exec'), cfg_globals, None)
  File "/tmp/portage/sys-libs/compiler-rt-15.0.0/work/compiler-rt/test/lit.common.cfg.py", line 561, in <module>
    if is_binutils_lto_supported():
       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/tmp/portage/sys-libs/compiler-rt-15.0.0/work/compiler-rt/test/lit.common.cfg.py", line 543, in is_binutils_lto_supported
    ld_cmd = subprocess.Popen([exe, '--help'], stdout=subprocess.PIPE, env={'LANG': 'C'})
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/subprocess.py", line 1022, in __init__
    self._execute_child(args, executable, preexec_fn, close_fds,
  File "/usr/lib/python3.11/subprocess.py", line 1899, in _execute_child
    raise child_exception_type(errno_num, err_msg, err_filename)
FileNotFoundError: [Errno 2] No such file or directory: 'GOLD_EXECUTABLE-NOTFOUND'
```

Differential Revision: https://reviews.llvm.org/D133358
 		2022-09-07 07:14:31 +02:00
..
cmake [compiler-rt][builtins] Pass -Werror to check_cxx_compiler_flag 2022-08-27 13:39:28 -07:00
docs Revert "[cmake] Use `CMAKE_INSTALL_LIBDIR` too" 2022-08-18 22:46:32 -04:00
include [msan] Add more specific messages for use-after-destroy 2022-08-30 19:52:32 -07:00
lib [HWASan] Show memory rather than tag addresses in tag dump 2022-09-06 16:54:34 -07:00
test [compiler-rt] [test] Handle missing ld.gold gracefully 2022-09-07 07:14:31 +02:00
tools
…
unittests [Sanitizer][Darwin] Cleanup MaybeReexec() function and usage 2022-07-08 14:31:42 -07:00
utils [compiler-rt] NFC: Fix trivial typo 2021-09-04 14:12:58 +05:30
www Remove references to old mailing lists that have moved to discourse. Replace with links to discourse. 2022-07-22 09:59:03 -07:00
.clang-tidy
…
.gitignore
…
CMakeLists.txt Revert "Revert "[compiler-rt] Fix check for cross-compiling"" 2022-08-19 07:00:51 -07:00
CODE_OWNERS.TXT CODE_OWNERS: update information for builtins 2022-04-25 15:36:52 +00:00
CREDITS.TXT
…
LICENSE.TXT
…
README.txt
…

README.txt 

Compiler-RT
================================

This directory and its subdirectories contain source code for the compiler
support routines.

Compiler-RT is open source software. You may freely distribute it under the
terms of the license agreement found in LICENSE.txt.

================================