[PATCH] PPC64 support multi TOCs

[Steven Munroe]

Currently very large applications/libraries may fail to link because 
they overflow the 64KB (8K entry) "Table Of Contents" or TOC (i.e 
"relocation truncated to fit: R_PPC64_TOC16_DS ..."). Alan Modra is 
working on gcc/binutils changes to automatically create multiple TOCs 
for these cases.

The PowerPC64 ABI combines the GOT and TOC and allows for both @toc and 
@got notation and relocations. At run time the GOT may exists as subset 
of the TOC and use the same base register (R2).  Alan's proposed change 
[binutils cvs head and 
ftp://ftp.linuxppc64.org/pub/people/amodra/gcc-3.2/gcc-20030611-ppc64.diff.gz] 
supports multiple TOC per application/library but not multiple GOTs. So 
it would be best if powerpc64 libc code did not contain any @got 
references. The attached patch replaces the few remaining @got usages 
with @toc notation.


2003-06-12  Steven Munroe <sjmunroe@us.ibm.com>

	* sysdeps/powerpc/powerpc64/dl-machine.h (RTLD_START): Replace
	@got notation with @toc.
	* sysdeps/powerpc/powerpc64/sysdep.h (CALL_MCOUNT): Replace @got
	notation with @toc.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/brk.S (__brk)
	Replace @ got notation with @toc.

Separately for linuxthreads

2003-06-12  Steven Munroe <sjmunroe@us.ibm.com>

	* sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h
	(SINGLE_THREAD_P): Replace @ got notation with @toc.