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systemc: Update the gem5-within-systemc README to mention USE_SYSTEMC.

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When linking with an external systemc host, the native gem5 systemc API
should be disabled to avoid linking conflicts.

Change-Id: If7f9b3718fcdbdab5ebc9ef52e746f6bf9f2fb9c
Reviewed-on: https://gem5-review.googlesource.com/c/14520
Reviewed-by: Matthias Jung <jungma@eit.uni-kl.de>
Maintainer: Gabe Black <gabeblack@google.com>
This commit is contained in:
Gabe Black
2018-11-21 17:59:16 -08:00
parent 5a2e13f973
commit 6920ba70a9
1 changed files with 7 additions and 4 deletions
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11
util/systemc/gem5_within_systemc/README
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@@ -26,16 +26,19 @@ Read main.cc for more details of the implementation and sc_... files for
To build:
First build gem5 as a library with cxx-config support and (optionally)
without python. Also build a normal gem5 (cxx-config not needed, Python
needed):
without python. When building the library, disable gem5's native SystemC
API support, as that will conflict with the external version. Also build a
normal gem5 (cxx-config not needed, Python needed):
> cd ../../..
> scons build/ARM/gem5.opt
> scons --with-cxx-config --without-python build/ARM/libgem5_opt.so
> scons --with-cxx-config --without-python USE_SYSTEMC=0 \
> build/ARM/libgem5_opt.so
> cd util/systemc
Note: For MAC / OSX this command should be used:
> scons --with-cxx-config --without-python build/ARM/libgem5_opt.dylib
> scons --with-cxx-config --without-python USE_SYSTEMC=0 \
> build/ARM/libgem5_opt.dylib
Set a proper LD_LIBRARY_PATH e.g. for bash:
> export LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/path/to/gem5/build/ARM/"