unimore/kernel-hacking-2024-linux-steffo
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arm: allow usage of string functions in linux/string.h

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In introducing a trivial "strstarts()" function in linux/string.h, we
hit:

	arch/arm/boot/compressed/misc.o: In function `strstarts':
	misc.c:(.text+0x368): undefined reference to `strlen'
	misc.c:(.text+0x378): undefined reference to `strncmp'

This is because of "CFLAGS_misc.o := -Dstatic=" in the Makefile.
"static inline strstarts(...)" becomes non-inline, and refers to the
other string ops.

The simplest workaround is to include asm/string.h.  This makes sense
anyway, since lib/string.c won't be linked against this so we can't
use those functions anyway.

Compile tested here.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Rusty Russell 2009-03-31 13:05:35 -06:00
parent e91defa26c
commit aa0d3bb77e
1 changed files with 4 additions and 1 deletions
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5
arch/arm/boot/compressed/misc.c
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@ -18,7 +18,10 @@
unsigned int __machine_arch_type;
#include <linux/string.h>
#include <linux/compiler.h> /* for inline */
#include <linux/types.h> /* for size_t */
#include <linux/stddef.h> /* for NULL */
#include <asm/string.h>
#ifdef STANDALONE_DEBUG
#define putstr printf