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Fix build problems caused by "_end" -> "__bss_end__" rename

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Commit 44c6e65 "rename _end to __bss_end__ broke building of a large
number of systems (at least all PowerPC?):

libstubs.o: In function `app_startup':
examples/standalone/stubs.c:197: undefined reference to `__bss_end__'

The rename should not be done for the files in the
examples/standalone/ directory, as these are not using the code from
start.S, but do their own BSS clearing, and either use their own
linker scripts or the ones provided by the compilers.

Signed-off-by: Po-Yu Chuang <ratbert@faraday-tech.com>
Signed-off-by: Wolfgang Denk <wd@denx.de>
This commit is contained in:
Wolfgang Denk 2011-03-29 14:34:50 +02:00
parent cb815e5ff9
commit 7ec830d580
3 changed files with 4 additions and 4 deletions
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2
examples/standalone/mips.lds
View file

@ -55,5 +55,5 @@ SECTIONS
.sbss (NOLOAD) : { *(.sbss) }
.bss (NOLOAD) : { *(.bss) . = ALIGN(4); }
__bss_end__ = .;
_end = .;
}

2
examples/standalone/sparc.lds
View file

@ -57,5 +57,5 @@ SECTIONS
}
. = ALIGN(4);
__bss_end = .;
__bss_end__ = .;
_end = .;
}

4
examples/standalone/stubs.c
View file

@ -187,14 +187,14 @@ void __attribute__((unused)) dummy(void)
#include <_exports.h>
}
extern unsigned long __bss_start, __bss_end__;
extern unsigned long __bss_start, _end;
void app_startup(char * const *argv)
{
unsigned char * cp = (unsigned char *) &__bss_start;
/* Zero out BSS */
while (cp < (unsigned char *)&__bss_end__) {
while (cp < (unsigned char *)&_end) {
*cp++ = 0;
}