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Instead of weak-linking against LoggingSupport framework (which 

requires that this private framework be available - and it is not
available earlier than macOS 10.12 - to build lldb), dlopen the
framework binary on demand in debugserver.  We're already using
dlsym() to look up all the symbols so there is no need to use weak
linking here.

<rdar://problem/30158797> 

llvm-svn: 293135
This commit is contained in:
Jason Molenda 2017-01-26 02:13:43 +00:00
parent aee15fb204
commit 891c777f90
1 changed files with 1 additions and 0 deletions
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lldb/tools/debugserver/source/MacOSX/DarwinLog/DarwinLogCollector.cpp
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@ -50,6 +50,7 @@ bool LookupSPICalls() {
static bool s_has_spi;
std::call_once(s_once_flag, [] {
dlopen ("/System/Library/PrivateFrameworks/LoggingSupport.framework/LoggingSupport", RTLD_NOW);
s_os_activity_stream_for_pid = (os_activity_stream_for_pid_t)dlsym(
RTLD_DEFAULT, "os_activity_stream_for_pid");
s_os_activity_stream_resume = (os_activity_stream_resume_t)dlsym(