systemc: Update the gem5-within-systemc README to mention USE_SYSTEMC.
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>
diff --git a/util/systemc/gem5_within_systemc/README b/util/systemc/gem5_within_systemc/README
index 9ee1103..6bfb055 100644
--- a/util/systemc/gem5_within_systemc/README
+++ b/util/systemc/gem5_within_systemc/README
@@ -26,16 +26,19 @@
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/"
