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uml: fix string exporting on UML/i386

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In 2.6.23-rc1, i386 fiddled its string support such that UML started getting
undefined references from modules.  The UML asm/string.h was including the
i386 string.h, which defined __HAVE_ARCH_STR*, but the corresponding
implementations weren't being pulled in.

This is fixed by adding arch/i386/lib/string.h to the list of host
architecture files to be pulled in to UML.

A complication is that the libc exports file assumed that the generic strlen
and strstr weren't in use (i.e.  __HAVE_ARCH_STR is defined), then they aren't
exported.  This is untrue for strlen, which is exported in either case, so
this logic is not needed.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jeff Dike 2007-07-23 18:43:46 -07:00 committed by Linus Torvalds
parent 0d786d4a27
commit 1a65f493c3
2 changed files with 2 additions and 5 deletions
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5
arch/um/os-Linux/user_syms.c
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@ -19,10 +19,7 @@ extern void *memmove(void *, const void *, size_t);
extern void *memset(void *, int, size_t);
extern int printf(const char *, ...);
/* If they're not defined, the export is included in lib/string.c.*/
#ifdef __HAVE_ARCH_STRLEN
EXPORT_SYMBOL(strlen);
#endif
/* If it's not defined, the export is included in lib/string.c.*/
#ifdef __HAVE_ARCH_STRSTR
EXPORT_SYMBOL(strstr);
#endif

2
arch/um/sys-i386/Makefile
View file

@ -4,7 +4,7 @@ obj-y = bug.o bugs.o checksum.o delay.o fault.o ksyms.o ldt.o ptrace.o \
obj-$(CONFIG_MODE_SKAS) += stub.o stub_segv.o
subarch-obj-y = lib/bitops.o lib/semaphore.o
subarch-obj-y = lib/bitops.o lib/semaphore.o lib/string.o
subarch-obj-$(CONFIG_HIGHMEM) += mm/highmem.o
subarch-obj-$(CONFIG_MODULES) += kernel/module.o