[#5626] Build lib mad fail at option "-fforce-mem" with gcc 4.3
Submitted By: Vivi Li
Open Date
2009-10-19 05:52:58 Close Date
2009-10-20 03:13:56
Priority:
Medium Assignee:
Barry Song
Status:
Closed Fixed In Release:
N/A
Found In Release:
2010R1 Release:
Category:
N/A Board:
N/A
Processor:
ALL Silicon Revision:
Is this bug repeatable?:
Yes Resolution:
Fixed
Uboot version or rev.:
Toolchain version or rev.:
gcc4.3-trunk-svn3648
App binary format:
N/A
Summary: Build lib mad fail at option "-fforce-mem" with gcc 4.3
Details:
Build lib mad fail at option "-fforce-mem" with gcc 4.3 toolchain.
Option "-fforce-mem" is not supported in gcc4.3 now.
Lib mad:
--
/bin/sh ./libtool --mode=compile bfin-uclinux-gcc -DHAVE_CONFIG_H -I. -I../libmad-0.15.1b -I. -DFPM_DEFAULT -DEMBED -D__uClinux__ -I/home/test/work/cruise/checkouts/uclinux-dist -mcpu=bf548-0.2 -Wall -pipe -mcpu=bf548-0.2 -g -O -fforce-mem -fforce-addr -fthread-jumps -fcse-follow-jumps -fcse-skip-blocks -fexpensive-optimizations -fregmove -fschedule-insns2 -c -o version.lo ../libmad-0.15.1b/version.c
bfin-uclinux-gcc -DHAVE_CONFIG_H -I. -I../libmad-0.15.1b -I. -DFPM_DEFAULT -DEMBED -D__uClinux__ -I/home/test/work/cruise/checkouts/uclinux-dist -mcpu=bf548-0.2 -Wall -pipe -mcpu=bf548-0.2 -g -O -fforce-mem -fforce-addr -fthread-jumps -fcse-follow-jumps -fcse-skip-blocks -fexpensive-optimizations -fregmove -fschedule-insns2 -c ../libmad-0.15.1b/version.c -o version.o
cc1: error: unrecognized command line option "-fforce-mem"
make[5]: *** [version.lo] Error 1
make[5]: Leaving directory `/home/test/work/cruise/checkouts/uclinux-dist/lib/libmad/build-libmad-0.15.1b'
make[4]: *** [install-recursive] Error 1
--
Follow-ups
--- Robin Getz 2009-10-19 11:46:09
-fforce-mem
Force memory operands to be copied into registers before doing
arithmetic on them. This produces better code by making all memory
references potential common subexpressions. When they are not
com‐
mon subexpressions, instruction combination should eliminate the
separate register-load. This option is now a nop and will be
removed in 4.2.
So, it was removed. We just need to update libmad's configure script.
--- Robin Getz 2009-10-19 12:07:00
===================================================================
--- lib/libmad/libmad-0.15.1b/configure (revision 9007)
+++ lib/libmad/libmad-0.15.1b/configure (working copy)
@@ -19099,7 +19099,8 @@
case "$optimize" in
-O|"-O "*)
optimize="-O"
- optimize="$optimize -fforce-mem"
+ # this option had been removed from gcc 4.3
+ # optimize="$optimize -fforce-mem"
optimize="$optimize -fforce-addr"
: #x optimize="$optimize -finline-functions"
: #- optimize="$optimize -fstrength-reduce"
Fixes it for me...
--- Barry Song 2009-10-19 22:35:10
checked in.
--- Vivi Li 2009-10-20 03:13:56
OK now. Close it.
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