glibc-2.2.5-mips-clone-local-label.patch

linux下编译交叉工具链的工具源码

This is a workaround for

mipsel-unknown-linux-gnu-gcc ../sysdeps/unix/sysv/linux/mips/clone.S -c  -I../include -I. -I/home3/dank/crosstool-0.7/build/mipsel-unknown-linux-gnu/gcc-3.2.3-glibc-2.2.5/build-glibc/misc -I.. -I../libio  -I/home3/dank/crosstool-0.7/build/mipsel-unknown-linux-gnu/gcc-3.2.3-glibc-2.2.5/build-glibc -I../sysdeps/mips/elf -I../linuxthreads/sysdeps/unix/sysv/linux -I../linuxthreads/sysdeps/pthread -I../sysdeps/pthread -I../linuxthreads/sysdeps/unix/sysv -I../linuxthreads/sysdeps/unix -I../linuxthreads/sysdeps/mips -I../sysdeps/unix/sysv/linux/mips -I../sysdeps/unix/sysv/linux -I../sysdeps/gnu -I../sysdeps/unix/common -I../sysdeps/unix/mman -I../sysdeps/unix/inet -I../sysdeps/unix/sysv -I../sysdeps/unix/mips -I../sysdeps/unix -I../sysdeps/posix -I../sysdeps/mips/mipsel -I../sysdeps/mips/fpu -I../sysdeps/mips -I../sysdeps/wordsize-32 -I../sysdeps/ieee754/flt-32 -I../sysdeps/ieee754/dbl-64 -I../sysdeps/ieee754 -I../sysdeps/generic/elf -I../sysdeps/generic  -nostdinc -isystem /home3/dank/crosstool-0.7/result/mipsel-unknown-linux-gnu/gcc-3.2.3-glibc-2.2.5/lib/gcc-lib/mipsel-unknown-linux-gnu/3.2.3/include -isystem /home3/dank/crosstool-0.7/result/mipsel-unknown-linux-gnu/gcc-3.2.3-glibc-2.2.5/mipsel-unknown-linux-gnu/include -D_LIBC_REENTRANT -include ../include/libc-symbols.h  -DPIC   -DASSEMBLER   -o /home3/dank/crosstool-0.7/build/mipsel-unknown-linux-gnu/gcc-3.2.3-glibc-2.2.5/build-glibc/misc/clone.o
../sysdeps/unix/sysv/linux/mips/clone.S: Assembler messages:
../sysdeps/unix/sysv/linux/mips/clone.S:66: Error: Can not represent BFD_RELOC_16_PCREL_S2 relocation in this object file format
make[2]: *** [/home3/dank/crosstool-0.7/build/mipsel-unknown-linux-gnu/gcc-3.2.3-glibc-2.2.5/build-glibc/misc/clone.o] Error 1

which was using h.j.lu's binutils-2.13.90.0.18.


But see http://lists.debian.org/debian-mips/2003/debian-mips-200305/msg00011.html
which says
"A newer version of binutils (CVS post 2003-03-12) fixes it without
the need of changing perfectly legal code."
So presumably this can be ditched sooner or later.

From http://honk.physik.uni-konstanz.de/~agx/linux-mips/glibc/patches/applied/clone-local-label.diff

2003-03-13  Guido Guenther  <[e-mail]>

	* sysdeps/unix/sysv/linux/mips/clone.S: introduce and use local label
	  .Lthread_start since current binutils don't allow branches to globally
	  visible symbols.

===================================================================
RCS file: /cvs/glibc/libc/sysdeps/unix/sysv/linux/mips/clone.S,v
retrieving revision 1.10
diff -u -r1.10 clone.S
--- glibc-2.2.5/sysdeps/unix/sysv/linux/mips/clone.S	12 Mar 2003 01:04:51 -0000	1.10
+++ glibc-2.2.5/sysdeps/unix/sysv/linux/mips/clone.S	12 Mar 2003 19:04:39 -0000
@@ -63,7 +63,7 @@
 	syscall
 
 	bnez		a3,error
-	beqz		v0,__thread_start
+	beqz		v0,.Lthread_start
 
 	/* Successful return from the parent */
 	addiu		sp,32
@@ -85,6 +85,7 @@
    debug info.  */
 
 ENTRY(__thread_start)
+.Lthread_start:
 	/* cp is already loaded.  */
 	.cprestore	16
 	/* The stackframe has been created on entry of clone().  */