bootstrap/7552: problems building gcc 3.1.1 with -O2

[Robert W. Hasker]

>Number:         7552
>Category:       bootstrap
>Synopsis:       "not enough virtual memory error" when building gcc-3.1.1
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Aug 09 07:06:00 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator:     Robert W. Hasker
>Release:        3.1.1
>Organization:
University of Wisconsin - Platteville
>Environment:
System: OSF1 baobab.cs.uwplatt.edu V4.0 1530 alpha
Machine: alpha
	
host: alpha-dec-osf4.0g
build: alpha-dec-osf4.0g
target: alpha-dec-osf4.0g
configured with: ../gcc-3.1.1/configure --with-stabs --enable-languages=c,c++,f77,java
>Description:

	When I create a separate subdirectory, ./configure, and then "make",
        I get the error 
                virtual memory exhausted: Not enough space
        I'm mildly surprised if our VM really isn't large enough; here's
        part of the output of swapon -s, and at the time of the build no
        non-system jobs were running:
        Total swap allocation:
            Allocated space:        66034 pages (515MB)
            In-use space:            5095 pages (  7%)
            Available space:        60939 pages ( 92%)
        I have also been able to build previous versions of gcc with no
        problems, and our javac (which is pretty memory-intensive) runs
        just fine.

        The problem occurred with the command
                gcc -c -DIN_GCC    -g -O2 -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes   -DHAVE_CONFIG_H    -I. -Icp -I../../gcc-3.1.1/gcc -I../../gcc-3.1.1/gcc/cp -I../../gcc-3.1.1/gcc/config -I../../gcc-3.1.1/gcc/../include ../../gcc-3.1.1/gcc/cp/decl.c -o cp/decl.o
        After changing -O2 to -O and rebuilding, I got the same problem w/
        the command
                /usr2/sys/usr/local/src/bld311/gcc/xgcc -shared-libgcc -B/usr2/sys/usr/local/src/bld311/gcc/ -nostdinc++ -L/usr2/sys/usr/local/src/bld311/alpha-dec-osf4.0g/libstdc++-v3/src -L/usr2/sys/usr/local/src/bld311/alpha-dec-osf4.0g/libstdc++-v3/src/.libs -B/usr/local/alpha-dec-osf4.0g/bin/ -B/usr/local/alpha-dec-osf4.0g/lib/ -isystem /usr/local/alpha-dec-osf4.0g/include -nostdinc++ -I/usr2/sys/usr/local/src/bld311/alpha-dec-osf4.0g/libstdc++-v3/include/alpha-dec-osf4.0g -I/usr2/sys/usr/local/src/bld311/alpha-dec-osf4.0g/libstdc++-v3/include -I../../../../gcc-3.1.1/libstdc++-v3/libsupc++ -I../../../../gcc-3.1.1/libstdc++-v3/libmath -g -O2 -mieee -fno-implicit-templates -Wall -Wno-format -W -Wwrite-strings -Winline -fdiagnostics-show-location=once -g -c ../../../../gcc-3.1.1/libstdc++-v3/src/locale-inst.cc   -DPIC -o .libs/locale-inst.o

>How-To-Repeat:
        unpack gcc-3.1.1-tar.gz
        mkdir bld311
        cd bld311
        ../gcc-3.1.1/configure --with-stabs --enable-languages=c,c++,f77,java
        make
>Fix:
	My fix was to build decl.o explicitely using the same command as
        make but w/ -O instead of -O2.  To build locale-inst.o, I had to
        edit the appropriate makefile to force -O instead of -O2 to be
        used. 
>Release-Note:
>Audit-Trail:
>Unformatted: