http://llvm.org/bugs/show_bug.cgi?id=18075
Bug ID: 18075
Summary: Clang errors out on OpenBSD's bounded attribute
Product: clang
Version: trunk
Hardware: All
OS: OpenBSD
Status: NEW
Severity: release blocker
Priority: P
Component: Frontend
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
As mentioned in OpenBSD's gcc-local(1)..
- gcc recognizes a new flag, -Wbounded, to perform basic checks on
functions which accept buffers and sizes. An extra attribute,
__bounded__, has been added to mark functions that can be checked
this way.
Clang does not support the bounded attribute yet; eventually someone will
probably submit support for it, but with trunk and what will be 3.4 Clang no
longer ignores the attribute unlike 3.3 and now errors out. This leaves
Clang/LLVM in an unusable state on OpenBSD as is.
clang -fno-color-diagnostics -O2 -pipe -fno-pie -DINET6 -c cmds.c
In file included from cmds.c:67:
In file included from /usr/include/sys/types.h:224:
In file included from /usr/include/sys/select.h:37:
In file included from /usr/include/sys/time.h:329:
/usr/include/time.h:135:31: error: use of undeclared identifier '__string__'
__attribute__ ((__bounded__(__string__,1,2)));
^
/usr/include/time.h:145:31: error: use of undeclared identifier '__minbytes__'
__attribute__ ((__bounded__(__minbytes__,2,26)));
^
/usr/include/time.h:147:31: error: use of undeclared identifier '__minbytes__'
__attribute__ ((__bounded__(__minbytes__,2,26)));
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