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sparc "environments" versus -mcpu=...
- From: lucier at math dot purdue dot edu
- To: gcc at gcc dot gnu dot org
- Cc: lucier at math dot purdue dot edu
- Date: Mon, 7 Jan 2002 21:45:33 -0500 (EST)
- Subject: sparc "environments" versus -mcpu=...
The documentation for -m32 and -m64 on sparc says
> Generate code for a 32-bit or 64-bit environment.
Is this totally independent of what I set for -mcpu=...? For example,
I thought that if I set -mcpu=supersparc with a sparcv9-sun-solaris2.8
version of gcc, it would default to -m32 since the 64-bit environment
is not supported on sparcv8. But if I leave out the -m32, gcc ICE's on
a file with the command line
gcc -fPIC -O1 -fschedule-insns2 -fno-strict-aliasing -fno-math-errno -mcpu=supersparc -mtune=ultrasparc -Wall -W -Wno-unused -c -I../lib -D___SHARED -D___SINGLE_HOST setup.c
Is my understanding incorrect? Or is it incorrect to require -m32 with