http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48731
Summary: regression: __attribute__((flatten)) produces error
with function calling variadic functions
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
AssignedTo: [email protected]
ReportedBy: [email protected]
Created attachment 24075
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=24075
preprocessed example source
Function with the flatten attribute that call variadic function do not compile
anymore with gcc-4.6. It worked perfectly with gcc-4.5. The attachment provide
a simple example of code.
Compilation flag:
% gcc-4.6 -std=gnu99 --save-temp -O3 -c flatten_variadic.c
Resulting error:
flatten_variadic.c: In function ‘blah2’:
flatten_variadic.c:5:23: error: ‘va_start’ used in function with fixed args
GCC: gcc-4.6 (Debian 4.6.0-4) 4.6.1 20110419 (prerelease)
System: Debian: Linux edelzwicker 2.6.38-2-amd64 #1 SMP Thu Apr 7 04:28:07 UTC
2011 x86_64 GNU/Linux
