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Currently to use warn(), a caller would need to include misc.h. However, this means they would get the (unavailable during compressed boot) gcc built-in memcpy family of functions. But since string.c is defining these memcpy functions for use by misc.c, we end up in a weird circular dependency. To break this loop, move the error reporting functions outside of misc.c with their own header so that they can be independently included by other sources. Since the screen-writing routines use memmove(), keep the low-level *_putstr() functions in misc.c. Signed-off-by: Kees Cook <keescook@chromium.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Baoquan He <bhe@redhat.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Borislav Petkov <bp@suse.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Lasse Collin <lasse.collin@tukaani.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Yinghai Lu <yinghai@kernel.org> Link: http://lkml.kernel.org/r/1462229461-3370-2-git-send-email-keescook@chromium.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
8 lines
144 B
C
8 lines
144 B
C
#ifndef BOOT_COMPRESSED_ERROR_H
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#define BOOT_COMPRESSED_ERROR_H
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void warn(char *m);
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void error(char *m);
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#endif /* BOOT_COMPRESSED_ERROR_H */
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