[gem5-users] Partial linking on system with -pie as default

[Matthias Hille]

Hi,




/usr/bin/ld: -r and -pie may not be used together


Diff is attached.

Cheers,
Matthias


diff --git a/SConstruct b/SConstruct
index 84a0a98ed..7edcc4935 100755
--- a/SConstruct
+++ b/SConstruct
@@ -692,7 +692,7 @@ if main['GCC'] or main['CLANG']:
     main['FILTER_PSHLINKFLAGS'] = lambda x: str(x).replace(' -shared', '')
     main['PSHLINKFLAGS'] = main.subst('${FILTER_PSHLINKFLAGS(SHLINKFLAGS)}')
     main['PLINKFLAGS'] = main.subst('${LINKFLAGS}')
-    shared_partial_flags = ['-Wl,--relocatable', '-nostdlib']
+    shared_partial_flags = ['-r', '-nostdlib']
     main.Append(PSHLINKFLAGS=shared_partial_flags)
     main.Append(PLINKFLAGS=shared_partial_flags)
 else:

adding support for partial linking broke linking on systems where PIE is default. The linker will give you the following error: In my case changing the gcc parameter from '-Wl,--relocatable' to '-r' solved the problem. With that gcc does not pass the -r flag to the linker if PIE is enabled.

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