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Link pthread with --whole-archive option on Linux

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This fixes a SIGSEGV on Ubuntu 16.04 when running z3 compiled with `--staticbin` (issue #2457). It seems that without the --whole-archive option the linker does not statically link all pthread symbols.

The fix is described here: https://stackoverflow.com/a/45271521/2491528
This commit is contained in:
Federico Poli 2019-11-06 09:30:50 +01:00
parent a78f899225
commit 7eb6731ac2
1 changed files with 4 additions and 1 deletions
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5
scripts/mk_util.py
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@ -2631,7 +2631,10 @@ def mk_config():
config.write('LINK=%s\n' % CXX) config.write('LINK=%s\n' % CXX)
config.write('LINK_FLAGS=\n') config.write('LINK_FLAGS=\n')
config.write('LINK_OUT_FLAG=-o \n') config.write('LINK_OUT_FLAG=-o \n')
config.write('LINK_EXTRA_FLAGS= -lpthread %s\n' % LDFLAGS) if is_linux() and (build_static_lib() or build_static_bin()):
config.write('LINK_EXTRA_FLAGS=-Wl,--whole-archive -lpthread -Wl,--no-whole-archive %s\n' % LDFLAGS)
else:
config.write('LINK_EXTRA_FLAGS=-lpthread %s\n' % LDFLAGS)
config.write('SO_EXT=%s\n' % SO_EXT) config.write('SO_EXT=%s\n' % SO_EXT)
config.write('SLINK=%s\n' % CXX) config.write('SLINK=%s\n' % CXX)
config.write('SLINK_FLAGS=%s\n' % SLIBFLAGS) config.write('SLINK_FLAGS=%s\n' % SLIBFLAGS)