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authorEric Andersen <andersen@codepoet.org>2003-01-30 17:23:56 +0000
committerEric Andersen <andersen@codepoet.org>2003-01-30 17:23:56 +0000
commit5cc196d825892fccda2f24172793254b9728a6dc (patch)
treef0bc5ef6ebf3216a59e6953e09a2fce0ad2c7000 /libc
parentcfcad9c1b1a3cb4daed1c15bfa000a619db95768 (diff)
Patch from Christophe Massiot:
Hello, When using uClibc to compile the modutils for a MIPS target, the linker outputs an "undefined symbol: _flush_cache". After some digging, it's a syscall only available on the MIPS architecture, and the _flush_cache symbol is in the GNU libc. Attached patch defines it in uClibc as well. I'm not sure if I made it the right way, though, but it works for me.
Diffstat (limited to 'libc')
-rw-r--r--libc/sysdeps/linux/mips/Makefile2
-rw-r--r--libc/sysdeps/linux/mips/cacheflush.c27
2 files changed, 28 insertions, 1 deletions
diff --git a/libc/sysdeps/linux/mips/Makefile b/libc/sysdeps/linux/mips/Makefile
index 53b3031b8..e207ae2d0 100644
--- a/libc/sysdeps/linux/mips/Makefile
+++ b/libc/sysdeps/linux/mips/Makefile
@@ -26,7 +26,7 @@ CRT0_OBJ = crt0.o crt1.o
SSRC=bsd-_setjmp.S bsd-setjmp.S setjmp.S clone.S fork.S syscall.S
SOBJS=$(patsubst %.S,%.o, $(SSRC))
-CSRC=__longjmp.c brk.c vfork.c setjmp_aux.c _mmap.c pipe.c __syscall_error.c
+CSRC=__longjmp.c brk.c vfork.c setjmp_aux.c _mmap.c pipe.c __syscall_error.c cacheflush.c
COBJS=$(patsubst %.c,%.o, $(CSRC))
OBJS=$(SOBJS) $(MOBJ) $(COBJS)
diff --git a/libc/sysdeps/linux/mips/cacheflush.c b/libc/sysdeps/linux/mips/cacheflush.c
new file mode 100644
index 000000000..fd6bd89e0
--- /dev/null
+++ b/libc/sysdeps/linux/mips/cacheflush.c
@@ -0,0 +1,27 @@
+/* brk system call for Linux/MIPS.
+ Copyright (C) 2000 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <errno.h>
+#include <unistd.h>
+#include <sys/syscall.h>
+
+_syscall3(int, cacheflush, void *, addr, const int, nbytes, const int, op);
+weak_alias(cacheflush, _flush_cache)
+_syscall3(int, cachectl, void *, addr, const int, nbytes, const int, op);
+