[llvm-branch-commits] [lldb] 09b0883 - [lldb] [POSIX-DYLD] Add libraries from initial eTakeSnapshot action

Michał Górny via llvm-branch-commits llvm-branch-commits at lists.llvm.org
Mon Dec 7 00:57:09 PST 2020


Author: Michał Górny
Date: 2020-12-07T09:56:51+01:00
New Revision: 09b08833f301ea375137931d26b7193101f82ceb

URL: https://github.com/llvm/llvm-project/commit/09b08833f301ea375137931d26b7193101f82ceb
DIFF: https://github.com/llvm/llvm-project/commit/09b08833f301ea375137931d26b7193101f82ceb.diff

LOG: [lldb] [POSIX-DYLD] Add libraries from initial eTakeSnapshot action

Explicitly consider the libraries reported on the initial eTakeSnapshot
action added, through adding them to the added soentry list
in DYLDRendezvous::SaveSOEntriesFromRemote().  This is necessary
on FreeBSD since the dynamic loader issues only a single 'consistent'
state rendezvous breakpoint hit for all the libraries present
in DT_NEEDED (while Linux issues an added-consistent event pair).

Reenable memory maps on FreeBSD since this fixed the issue triggered
by them.

Differential Revision: https://reviews.llvm.org/D92187

Added: 
    

Modified: 
    lldb/source/Plugins/DynamicLoader/POSIX-DYLD/DYLDRendezvous.cpp
    lldb/source/Plugins/Process/FreeBSDRemote/NativeProcessFreeBSD.cpp
    lldb/test/API/api/multithreaded/TestMultithreaded.py
    lldb/test/API/functionalities/breakpoint/global_constructor/TestBreakpointInGlobalConstructor.py
    lldb/test/API/functionalities/memory-region/TestMemoryRegion.py
    lldb/test/API/tools/lldb-server/TestLldbGdbServer.py
    lldb/test/API/tools/lldb-server/libraries-svr4/TestGdbRemoteLibrariesSvr4Support.py
    lldb/test/Shell/Unwind/thread-step-out-ret-addr-check.test

Removed: 
    


################################################################################
diff  --git a/lldb/source/Plugins/DynamicLoader/POSIX-DYLD/DYLDRendezvous.cpp b/lldb/source/Plugins/DynamicLoader/POSIX-DYLD/DYLDRendezvous.cpp
index 15b3805003a5..c06d640c654c 100644
--- a/lldb/source/Plugins/DynamicLoader/POSIX-DYLD/DYLDRendezvous.cpp
+++ b/lldb/source/Plugins/DynamicLoader/POSIX-DYLD/DYLDRendezvous.cpp
@@ -295,8 +295,15 @@ bool DYLDRendezvous::SaveSOEntriesFromRemote(
       return false;
 
     // Only add shared libraries and not the executable.
-    if (!SOEntryIsMainExecutable(entry))
+    if (!SOEntryIsMainExecutable(entry)) {
       m_soentries.push_back(entry);
+      // This function is called only once, at the very beginning
+      // of the program.  Make sure to add all soentries that are
+      // already present at this point.  This is necessary to cover
+      // DT_NEEDED on FreeBSD since (unlike Linux) it does not report
+      // loading these libraries separately.
+      m_added_soentries.push_back(entry);
+    }
   }
 
   m_loaded_modules = module_list;

diff  --git a/lldb/source/Plugins/Process/FreeBSDRemote/NativeProcessFreeBSD.cpp b/lldb/source/Plugins/Process/FreeBSDRemote/NativeProcessFreeBSD.cpp
index fd3c05ab411e..b8ddd1a013e3 100644
--- a/lldb/source/Plugins/Process/FreeBSDRemote/NativeProcessFreeBSD.cpp
+++ b/lldb/source/Plugins/Process/FreeBSDRemote/NativeProcessFreeBSD.cpp
@@ -485,9 +485,6 @@ Status NativeProcessFreeBSD::Kill() {
 Status NativeProcessFreeBSD::GetMemoryRegionInfo(lldb::addr_t load_addr,
                                                  MemoryRegionInfo &range_info) {
 
-  // TODO: figure out why it breaks stuff
-  return Status("currently breaks determining module list");
-
   if (m_supports_mem_region == LazyBool::eLazyBoolNo) {
     // We're done.
     return Status("unsupported");

diff  --git a/lldb/test/API/api/multithreaded/TestMultithreaded.py b/lldb/test/API/api/multithreaded/TestMultithreaded.py
index c6c75de386fa..60c2c3b372cb 100644
--- a/lldb/test/API/api/multithreaded/TestMultithreaded.py
+++ b/lldb/test/API/api/multithreaded/TestMultithreaded.py
@@ -31,7 +31,6 @@ def setUp(self):
     @skipIfNoSBHeaders
     # clang-cl does not support throw or catch (llvm.org/pr24538)
     @skipIfWindows
-    @expectedFailureAll(oslist=['freebsd'], bugnumber='llvm.org/pr48370')
     def test_python_stop_hook(self):
         """Test that you can run a python command in a stop-hook when stdin is File based. """
         self.build_and_test('driver.cpp test_stop-hook.cpp',

diff  --git a/lldb/test/API/functionalities/breakpoint/global_constructor/TestBreakpointInGlobalConstructor.py b/lldb/test/API/functionalities/breakpoint/global_constructor/TestBreakpointInGlobalConstructor.py
index 81c3798ebba7..4439607d91cf 100644
--- a/lldb/test/API/functionalities/breakpoint/global_constructor/TestBreakpointInGlobalConstructor.py
+++ b/lldb/test/API/functionalities/breakpoint/global_constructor/TestBreakpointInGlobalConstructor.py
@@ -15,7 +15,6 @@ class TestBreakpointInGlobalConstructors(TestBase):
     mydir = TestBase.compute_mydir(__file__)
     NO_DEBUG_INFO_TESTCASE = True
 
-    @expectedFailureAll(oslist=["freebsd"], bugnumber='llvm.org/pr48373')
     @expectedFailureNetBSD
     def test(self):
         self.build()

diff  --git a/lldb/test/API/functionalities/memory-region/TestMemoryRegion.py b/lldb/test/API/functionalities/memory-region/TestMemoryRegion.py
index 36984b3d1666..61e64d44e794 100644
--- a/lldb/test/API/functionalities/memory-region/TestMemoryRegion.py
+++ b/lldb/test/API/functionalities/memory-region/TestMemoryRegion.py
@@ -23,7 +23,6 @@ def setUp(self):
             'main.cpp',
             '// Run here before printing memory regions')
 
-    @expectedFailureAll(oslist=["freebsd"])
     def test(self):
         self.build()
 

diff  --git a/lldb/test/API/tools/lldb-server/TestLldbGdbServer.py b/lldb/test/API/tools/lldb-server/TestLldbGdbServer.py
index c3b45c833d53..8a9b7187a716 100644
--- a/lldb/test/API/tools/lldb-server/TestLldbGdbServer.py
+++ b/lldb/test/API/tools/lldb-server/TestLldbGdbServer.py
@@ -843,7 +843,6 @@ def test_qMemoryRegionInfo_is_supported_debugserver(self):
         self.qMemoryRegionInfo_is_supported()
 
     @llgs_test
-    @expectedFailureAll(oslist=["freebsd"])
     def test_qMemoryRegionInfo_is_supported_llgs(self):
         self.init_llgs_test()
         self.build()
@@ -908,7 +907,6 @@ def test_qMemoryRegionInfo_reports_code_address_as_executable_debugserver(
         self.qMemoryRegionInfo_reports_code_address_as_executable()
 
     @skipIfWindows # No pty support to test any inferior output
-    @expectedFailureAll(oslist=["freebsd"])
     @llgs_test
     def test_qMemoryRegionInfo_reports_code_address_as_executable_llgs(self):
         self.init_llgs_test()
@@ -975,7 +973,6 @@ def test_qMemoryRegionInfo_reports_stack_address_as_readable_writeable_debugserv
         self.qMemoryRegionInfo_reports_stack_address_as_readable_writeable()
 
     @skipIfWindows # No pty support to test any inferior output
-    @expectedFailureAll(oslist=["freebsd"])
     @llgs_test
     def test_qMemoryRegionInfo_reports_stack_address_as_readable_writeable_llgs(
             self):
@@ -1042,7 +1039,6 @@ def test_qMemoryRegionInfo_reports_heap_address_as_readable_writeable_debugserve
         self.qMemoryRegionInfo_reports_heap_address_as_readable_writeable()
 
     @skipIfWindows # No pty support to test any inferior output
-    @expectedFailureAll(oslist=["freebsd"])
     @llgs_test
     def test_qMemoryRegionInfo_reports_heap_address_as_readable_writeable_llgs(
             self):

diff  --git a/lldb/test/API/tools/lldb-server/libraries-svr4/TestGdbRemoteLibrariesSvr4Support.py b/lldb/test/API/tools/lldb-server/libraries-svr4/TestGdbRemoteLibrariesSvr4Support.py
index 6cca0e6c50fa..902a17639d56 100644
--- a/lldb/test/API/tools/lldb-server/libraries-svr4/TestGdbRemoteLibrariesSvr4Support.py
+++ b/lldb/test/API/tools/lldb-server/libraries-svr4/TestGdbRemoteLibrariesSvr4Support.py
@@ -120,7 +120,7 @@ def test_libraries_svr4_well_formed(self):
 
     @llgs_test
     @skipUnlessPlatform(["linux", "android", "freebsd", "netbsd"])
-    @expectedFailureAll(oslist=["freebsd", "netbsd"])
+    @expectedFailureNetBSD
     def test_libraries_svr4_load_addr(self):
         self.setup_test()
         self.libraries_svr4_has_correct_load_addr()

diff  --git a/lldb/test/Shell/Unwind/thread-step-out-ret-addr-check.test b/lldb/test/Shell/Unwind/thread-step-out-ret-addr-check.test
index 113922ef53b7..682b0e5332b1 100644
--- a/lldb/test/Shell/Unwind/thread-step-out-ret-addr-check.test
+++ b/lldb/test/Shell/Unwind/thread-step-out-ret-addr-check.test
@@ -3,7 +3,6 @@
 
 # REQUIRES: target-x86_64
 # UNSUPPORTED: system-windows
-# XFAIL: system-freebsd
 
 # RUN: %clang_host %p/Inputs/call-asm.c -x assembler-with-cpp %p/Inputs/thread-step-out-ret-addr-check.s -o %t
 # RUN: not %lldb %t -s %s -b 2>&1 | FileCheck %s


        


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