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[Xen-devel] XEN 3.0.1 vsprintf.c - strange macro expansion
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| Subject: | [Xen-devel] XEN 3.0.1 vsprintf.c - strange macro expansion |
| From: | Armand Puccetti <apuccett@xxxxxxxxxxxxxxxxxxxxxx> |
| Date: | Tue, 23 May 2006 19:31:08 +0200 |
| Delivery-date: | Tue, 23 May 2006 10:31:06 -0700 |
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When preprocessing the file vsprintf.c, macro 'va_arg' gets expanded
into '__builtin_va_arg', which is not XEN code.
For instance, at line 317 of that file, field_width = va_arg(args,int); becomes field_width = __builtin_va_arg(args,int); using the preprocessing command below.cpp -C -E -nostdinc -iwithprefix include -I.../xen-3.0.1/xen/include -I.../xen-3.0.1/xen/include/asm-x86/mach-generic -I.../xen-3.0.1/xen/include/asm-x86/mach-default -DNDEBUG -D__i386__ vsprintf.c The def inition of macro va_arg is located in file acenv.h:298, but has little to do with this result. Settings: Compiler: gcc 4.0.2, OS: Ubuntu Linux kernel 2.6.12.10 What might be the reason of this behavior? A bug in gcc? _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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