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Make the error-handling functions thread-safe.

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Prior to this change, error handling functions must be installed
and removed only inside of an llvm_[start/stop]_multithreading
pair.  This change allows error handling functions to be installed
any time, and from any thread.

Reviewed by: chandlerc

Differential Revision: http://reviews.llvm.org/D4140

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210937 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Zachary Turner
2014-06-13 21:20:44 +00:00
parent 6140939365
commit 89e90b25e3
2 changed files with 19 additions and 9 deletions
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5
include/llvm/Support/ErrorHandling.h
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@ -30,9 +30,6 @@ namespace llvm {
/// install_fatal_error_handler - Installs a new error handler to be used
/// whenever a serious (non-recoverable) error is encountered by LLVM.
///
/// If you are using llvm_start_multithreaded, you should register the handler
/// before doing that.
///
/// If no error handler is installed the default is to print the error message
/// to stderr, and call exit(1). If an error handler is installed then it is
/// the handler's responsibility to log the message, it will no longer be
@ -50,8 +47,6 @@ namespace llvm {
void *user_data = nullptr);
/// Restores default error handling behaviour.
/// This must not be called between llvm_start_multithreaded() and
/// llvm_stop_multithreaded().
void remove_fatal_error_handler();
/// ScopedFatalErrorHandler - This is a simple helper class which just