Bug 1221811 - assert.h is missing noreturn attribute
Summary: assert.h is missing noreturn attribute
Keywords:
Status: CLOSED EOL
Alias: None
Product: Fedora
Classification: Fedora
Component: mingw-headers
Version: 21
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Erik van Pienbroek
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2015-05-14 21:21 UTC by Eric Blake
Modified: 2015-12-02 18:01 UTC (History)
4 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2015-12-02 12:19:24 UTC
Type: Bug
Embargoed:


Attachments (Terms of Use)

Description Eric Blake 2015-05-14 21:21:40 UTC
Description of problem:
qemu hit a build failure when compiling for mingw with -Warray-bounds enabled, and we traced the problem to a bug in assert.h not declaring _assert() with MINGW_ATTR_NORETURN, when contrasted with glibc's assert.h.

Version-Release number of selected component (if applicable):
mingw32-headers-4.0.2-1.fc21.noarch

How reproducible:
100%

Steps to Reproduce:
1. Compile something where a noreturn attribute changes what gcc is able to deduce with regards to warning generation.
2.
3.

Actual results:
See https://lists.gnu.org/archive/html/qemu-devel/2015-05/msg03020.html for a huge test case.  I'm sure it's possible to come up with something much smaller and self-contained, but didn't bother spending the time actually trying to reduce it.

Expected results:
proper attribute in place, so that gcc has more knowledge for value range propagation

Additional info:

Comment 1 Fedora End Of Life 2015-11-04 10:26:45 UTC
This message is a reminder that Fedora 21 is nearing its end of life.
Approximately 4 (four) weeks from now Fedora will stop maintaining
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Comment 2 Fedora End Of Life 2015-12-02 12:19:33 UTC
Fedora 21 changed to end-of-life (EOL) status on 2015-12-01. Fedora 21 is
no longer maintained, which means that it will not receive any further
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