https://llvm.org/bugs/show_bug.cgi?id=25349
Bug ID: 25349
Summary: clang prints crash report on SIGPIPE if its output is
large and piped into `head`
Product: clang
Version: trunk
Hardware: PC
OS: All
Status: NEW
Severity: normal
Priority: P
Component: Driver
Assignee: unassignedclangb...@nondot.org
Reporter: nicolaswe...@gmx.de
CC: llvm-bugs@lists.llvm.org
Classification: Unclassified
$ cat test.mm
#import <Cocoa/Cocoa.h> // Or a different gigantic header.
$ clang -E test.mm | head
# 1 "test.mm"
# 1 "<built-in>" 1
# 1 "<built-in>" 3
# 342 "<built-in>" 3
# 1 "<command line>" 1
# 1 "<built-in>" 2
# 1 "test.mm" 2
# 1
"/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk/System/Library/Frameworks/Cocoa.framework/Headers/Cocoa.h"
1 3
# 12
"/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk/System/Library/Frameworks/Cocoa.framework/Headers/Cocoa.h"
3
# 1
"/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk/System/Library/Frameworks/Foundation.framework/Headers/Foundation.h"
1 3
clang: error: unable to execute command: Broken pipe: 13
clang: error: clang frontend command failed due to signal (use -v to see
invocation)
Apple LLVM version 7.0.0 (clang-700.0.72)
Target: x86_64-apple-darwin14.5.0
Thread model: posix
clang: note: diagnostic msg: PLEASE submit a bug report to
http://developer.apple.com/bugreporter/ and include the crash backtrace,
preprocessed source, and associated run script.
clang: note: diagnostic msg:
********************
PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang: note: diagnostic msg:
/var/folders/c5/8d7sdn1x2mg92mj0rndghhdr0000gn/T/test-e2e4ff.mm
clang: note: diagnostic msg:
/var/folders/c5/8d7sdn1x2mg92mj0rndghhdr0000gn/T/test-e2e4ff.sh
clang: note: diagnostic msg:
********************
The driver probably shouldn't print these crash reports for SIGPIPE.
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