Re: [RFH] Fixing -fsection-anchors on powerpc-darwin

[Richard Sandiford <richard at codesourcery dot com>]

Andrew Pinski <pinskia@physics.uc.edu> writes:
> Now I run into another problem:
> /Users/pinskia/src/gcc/local/gcc/objdir.objc/./prev-gcc/xgcc 
> -B/Users/pinskia/src/gcc/local/gcc/objdir.objc/./prev-gcc/ 
> -B/Volumes/temp/gcc/local.objc/powerpc-apple-darwin7.9.0/bin/ -c   -g 
> -O2 -mdynamic-no-pic -DIN_GCC   -W -Wall -Wwrite-strings 
> -Wstrict-prototypes -Wmissing-prototypes -pedantic -Wno-long-long 
> -Wno-variadic-macros -Wno-overlength-strings -Wold-style-definition 
> -Wmissing-format-attribute -Werror -fno-common   -DHAVE_CONFIG_H -I. 
> -I. -I/Users/pinskia/src/gcc/local/gcc/gcc 
> -I/Users/pinskia/src/gcc/local/gcc/gcc/. 
> -I/Users/pinskia/src/gcc/local/gcc/gcc/../include -I./../intl 
> -I/Users/pinskia/src/gcc/local/gcc/gcc/../libcpp/include  
> -I/Users/pinskia/src/gcc/local/gcc/gcc/../libdecnumber 
> -I../libdecnumber    -I. -I. -I/Users/pinskia/src/gcc/local/gcc/gcc 
> -I/Users/pinskia/src/gcc/local/gcc/gcc/. 
> -I/Users/pinskia/src/gcc/local/gcc/gcc/../include -I./../intl 
> -I/Users/pinskia/src/gcc/local/gcc/gcc/../libcpp/include  
> -I/Users/pinskia/src/gcc/local/gcc/gcc/../libdecnumber 
> -I../libdecnumber 
> /Users/pinskia/src/gcc/local/gcc/gcc/config/host-darwin.c
> /var/tmp//ccBWaqmT.s:130:Fixup of 1073745640 too large for field width 
> of 26 bits

Heh, that's quite some stress test ;)  It sounds like you know
what needs be changed, but out of interest, what are these fixups
against?  An address of the form "anchor + big_offset"?  If so,
why is the address in memory, and what does it look like without
section anchors?  Could you send me the -fno-section-anchors and
-fsection-anchors versions of the .s file?  I just want to make
sure that -fsection-anchors is doing what I expected in this case.

> PS Attached is my current patch:

Looks good to me FWIW.

Richard