From: "Robert P. J. Day" <rpjday@xxxxxxxxxxxxxx> Date: Mon, 6 Jul 2009 05:40:11 -0400 (EDT) > during one of my tree cleaning scans, i ran across the following: > > $ grep -rw EXPORT_SYMTAB_STROPS * > arch/sparc/include/asm/string_64.h:#ifndef EXPORT_SYMTAB_STROPS > arch/sparc/include/asm/string_64.h:#endif /* !EXPORT_SYMTAB_STROPS */ > arch/sparc/include/asm/string_32.h:#ifndef EXPORT_SYMTAB_STROPS > arch/sparc/include/asm/string_32.h:#endif /* !EXPORT_SYMTAB_STROPS */ > arch/sparc/lib/ksyms.c:#define EXPORT_SYMTAB_STROPS > $ > > given that EXPORT_SYMTAB was removed from the kernel tree quite some > time back, is this related macro still doing anything useful? just > asking. It's only used by sparc so that it can export symbols like memcpy(), memset() et al. properly Without this ifdef protection while building ksyms.c, string*.h will define these functions as macros, and that makes things like: EXPORT_SYMBOL(memcpy) and similar not work because memcpy will macro expand and thus break the build with syntax errors. -- To unsubscribe from this list: send the line "unsubscribe sparclinux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
