On 07/03/2012 04:28 AM, Adrian Smith wrote:
When I try to compile gcc using "-mcmodel=large" it fails with:
configure: error: cannot compute suffix of object files:
cannot compile. See `config.log' for more details.
I have, however, successfully downloaded and compiled gcc without
using the "-mcmodel=large" option. gcc compiles, and the resulting
compiler compiles a simple "hello world" and the program runs
successfully.
Introducing the "-mcmodel=large" parameters into the CFLAGS_FOR_TARGET
parameter in following command, however, causes it to fail:
make \
BOOT_CFLAGS='-g -O2 -mcmodel=large' \
CFLAGS_FOR_TARGET='-g -O2 -mcmodel=large' \
bootstrap
The "config.log" is identical between the successful and
non-successful runs (attached). The stdout and stderr from the "make"
command which fails is also attached.
I am compiling gcc 4.7.1 on Ubuntu 10.10 x86-64.
I would appreciate your help.
The reason I am compiling gcc like this is I wish to use the
"-mcmodel=large" option, as I have a (generated) program whose
executable would be larger than 2GB. When I use the standard gcc
supplied with my system, and use this option, the linker fails with
errors like the following; I understand this means I need to recompile
gcc itself using the option, please correct me if I am wrong about
this.
crtstuff.c:(.text+0x20): relocation truncated to fit:
R_X86_64_32S against `.dtors'
Thanks,
Adrian
---
Adrian Smith B.Sc.
adrian.m.smith@xxxxxxxxx
http://www.databasesandlife.com/
What happens if you use a normal (64-bit) gcc with option -mcmodel=medium ?
--
Tim Prince
