96e3e18eed
kasprintf pulls in kmalloc which proved to be fatal for at least bootimage target on alpha. Move it to a separate file so only users of kasprintf are exposed to the dependency on kmalloc. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Cc: Meelis Roos <mroos@linux.ee> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Jay Estabrook <jay.estabrook@hp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
45 lines
680 B
C
45 lines
680 B
C
/*
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* linux/lib/kasprintf.c
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*
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* Copyright (C) 1991, 1992 Linus Torvalds
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*/
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#include <stdarg.h>
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#include <linux/module.h>
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#include <linux/types.h>
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#include <linux/string.h>
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/* Simplified asprintf. */
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char *kvasprintf(gfp_t gfp, const char *fmt, va_list ap)
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{
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unsigned int len;
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char *p;
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va_list aq;
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va_copy(aq, ap);
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len = vsnprintf(NULL, 0, fmt, aq);
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va_end(aq);
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p = kmalloc(len+1, gfp);
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if (!p)
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return NULL;
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vsnprintf(p, len+1, fmt, ap);
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return p;
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}
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EXPORT_SYMBOL(kvasprintf);
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char *kasprintf(gfp_t gfp, const char *fmt, ...)
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{
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va_list ap;
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char *p;
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va_start(ap, fmt);
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p = kvasprintf(gfp, fmt, ap);
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va_end(ap);
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return p;
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}
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EXPORT_SYMBOL(kasprintf);
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