JosephTremoulet updated this revision to Diff 206931.
JosephTremoulet added a comment.
- Include __restore_rt
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D63667/new/
https://reviews.llvm.org/D63667
Files:
lldb/include/lldb/Symbol/UnwindPlan.h
lldb/packages/Python/lldbsuite/test/functionalities/signal/handle-abrt/Makefile
lldb/packages/Python/lldbsuite/test/functionalities/signal/handle-abrt/TestHandleAbort.py
lldb/packages/Python/lldbsuite/test/functionalities/signal/handle-abrt/main.c
lldb/source/Plugins/ABI/MacOSX-arm/ABIMacOSX_arm.cpp
lldb/source/Plugins/ABI/MacOSX-arm64/ABIMacOSX_arm64.cpp
lldb/source/Plugins/ABI/MacOSX-i386/ABIMacOSX_i386.cpp
lldb/source/Plugins/ABI/SysV-arm/ABISysV_arm.cpp
lldb/source/Plugins/ABI/SysV-arm64/ABISysV_arm64.cpp
lldb/source/Plugins/ABI/SysV-hexagon/ABISysV_hexagon.cpp
lldb/source/Plugins/ABI/SysV-i386/ABISysV_i386.cpp
lldb/source/Plugins/ABI/SysV-mips/ABISysV_mips.cpp
lldb/source/Plugins/ABI/SysV-mips64/ABISysV_mips64.cpp
lldb/source/Plugins/ABI/SysV-ppc/ABISysV_ppc.cpp
lldb/source/Plugins/ABI/SysV-ppc64/ABISysV_ppc64.cpp
lldb/source/Plugins/ABI/SysV-x86_64/ABISysV_x86_64.cpp
lldb/source/Plugins/Instruction/ARM/EmulateInstructionARM.cpp
lldb/source/Plugins/Instruction/ARM64/EmulateInstructionARM64.cpp
lldb/source/Plugins/Instruction/MIPS/EmulateInstructionMIPS.cpp
lldb/source/Plugins/Instruction/MIPS64/EmulateInstructionMIPS64.cpp
lldb/source/Plugins/Instruction/PPC64/EmulateInstructionPPC64.cpp
lldb/source/Plugins/Platform/Linux/PlatformLinux.cpp
lldb/source/Plugins/Process/Utility/RegisterContextLLDB.cpp
lldb/source/Plugins/SymbolFile/Breakpad/SymbolFileBreakpad.cpp
lldb/source/Plugins/UnwindAssembly/x86/x86AssemblyInspectionEngine.cpp
lldb/source/Symbol/ArmUnwindInfo.cpp
lldb/source/Symbol/CompactUnwindInfo.cpp
lldb/source/Symbol/DWARFCallFrameInfo.cpp
Index: lldb/source/Symbol/DWARFCallFrameInfo.cpp
===================================================================
--- lldb/source/Symbol/DWARFCallFrameInfo.cpp
+++ lldb/source/Symbol/DWARFCallFrameInfo.cpp
@@ -19,6 +19,7 @@
#include "lldb/Utility/Log.h"
#include "lldb/Utility/Timer.h"
#include <list>
+#include <cstring>
using namespace lldb;
using namespace lldb_private;
@@ -601,6 +602,9 @@
}
offset += aug_data_len;
}
+ unwind_plan.SetUnwindPlanForSignalTrap(
+ strchr(cie->augmentation, 'S') ? eLazyBoolYes : eLazyBoolNo);
+
Address lsda_data;
Address personality_function_ptr;
Index: lldb/source/Symbol/CompactUnwindInfo.cpp
===================================================================
--- lldb/source/Symbol/CompactUnwindInfo.cpp
+++ lldb/source/Symbol/CompactUnwindInfo.cpp
@@ -737,6 +737,7 @@
unwind_plan.SetSourceName("compact unwind info");
unwind_plan.SetSourcedFromCompiler(eLazyBoolYes);
unwind_plan.SetUnwindPlanValidAtAllInstructions(eLazyBoolNo);
+ unwind_plan.SetUnwindPlanForSignalTrap(eLazyBoolNo);
unwind_plan.SetRegisterKind(eRegisterKindEHFrame);
unwind_plan.SetLSDAAddress(function_info.lsda_address);
@@ -1008,6 +1009,7 @@
unwind_plan.SetSourceName("compact unwind info");
unwind_plan.SetSourcedFromCompiler(eLazyBoolYes);
unwind_plan.SetUnwindPlanValidAtAllInstructions(eLazyBoolNo);
+ unwind_plan.SetUnwindPlanForSignalTrap(eLazyBoolNo);
unwind_plan.SetRegisterKind(eRegisterKindEHFrame);
unwind_plan.SetLSDAAddress(function_info.lsda_address);
@@ -1304,6 +1306,7 @@
unwind_plan.SetSourceName("compact unwind info");
unwind_plan.SetSourcedFromCompiler(eLazyBoolYes);
unwind_plan.SetUnwindPlanValidAtAllInstructions(eLazyBoolNo);
+ unwind_plan.SetUnwindPlanForSignalTrap(eLazyBoolNo);
unwind_plan.SetRegisterKind(eRegisterKindEHFrame);
unwind_plan.SetLSDAAddress(function_info.lsda_address);
@@ -1437,6 +1440,7 @@
unwind_plan.SetSourceName("compact unwind info");
unwind_plan.SetSourcedFromCompiler(eLazyBoolYes);
unwind_plan.SetUnwindPlanValidAtAllInstructions(eLazyBoolNo);
+ unwind_plan.SetUnwindPlanForSignalTrap(eLazyBoolNo);
unwind_plan.SetRegisterKind(eRegisterKindEHFrame);
unwind_plan.SetLSDAAddress(function_info.lsda_address);
Index: lldb/source/Symbol/ArmUnwindInfo.cpp
===================================================================
--- lldb/source/Symbol/ArmUnwindInfo.cpp
+++ lldb/source/Symbol/ArmUnwindInfo.cpp
@@ -344,6 +344,7 @@
unwind_plan.SetSourceName("ARM.exidx unwind info");
unwind_plan.SetSourcedFromCompiler(eLazyBoolYes);
unwind_plan.SetUnwindPlanValidAtAllInstructions(eLazyBoolNo);
+ unwind_plan.SetUnwindPlanForSignalTrap(eLazyBoolNo);
unwind_plan.SetRegisterKind(eRegisterKindDWARF);
return true;
Index: lldb/source/Plugins/UnwindAssembly/x86/x86AssemblyInspectionEngine.cpp
===================================================================
--- lldb/source/Plugins/UnwindAssembly/x86/x86AssemblyInspectionEngine.cpp
+++ lldb/source/Plugins/UnwindAssembly/x86/x86AssemblyInspectionEngine.cpp
@@ -1328,6 +1328,7 @@
unwind_plan.SetSourceName("assembly insn profiling");
unwind_plan.SetSourcedFromCompiler(eLazyBoolNo);
unwind_plan.SetUnwindPlanValidAtAllInstructions(eLazyBoolYes);
+ unwind_plan.SetUnwindPlanForSignalTrap(eLazyBoolNo);
return true;
}
Index: lldb/source/Plugins/SymbolFile/Breakpad/SymbolFileBreakpad.cpp
===================================================================
--- lldb/source/Plugins/SymbolFile/Breakpad/SymbolFileBreakpad.cpp
+++ lldb/source/Plugins/SymbolFile/Breakpad/SymbolFileBreakpad.cpp
@@ -495,6 +495,7 @@
auto plan_sp = std::make_shared<UnwindPlan>(lldb::eRegisterKindLLDB);
plan_sp->SetSourceName("breakpad STACK CFI");
plan_sp->SetUnwindPlanValidAtAllInstructions(eLazyBoolNo);
+ plan_sp->SetUnwindPlanForSignalTrap(eLazyBoolNo);
plan_sp->SetSourcedFromCompiler(eLazyBoolYes);
plan_sp->SetPlanValidAddressRange(
AddressRange(base + init_record->Address, *init_record->Size,
Index: lldb/source/Plugins/Process/Utility/RegisterContextLLDB.cpp
===================================================================
--- lldb/source/Plugins/Process/Utility/RegisterContextLLDB.cpp
+++ lldb/source/Plugins/Process/Utility/RegisterContextLLDB.cpp
@@ -472,20 +472,30 @@
m_sym_ctx_valid = false;
}
- bool decr_pc_and_recompute_addr_range = false;
+ bool decr_pc_and_recompute_addr_range;
- // If the symbol lookup failed...
- if (!m_sym_ctx_valid)
+ if (!m_sym_ctx_valid) {
+ // Always decrement and recompute if the symbol lookup failed
decr_pc_and_recompute_addr_range = true;
-
- // Or if we're in the middle of the stack (and not "above" an asynchronous
- // event like sigtramp), and our "current" pc is the start of a function...
- if (GetNextFrame()->m_frame_type != eTrapHandlerFrame &&
- GetNextFrame()->m_frame_type != eDebuggerFrame &&
- (!m_sym_ctx_valid ||
- (addr_range.GetBaseAddress().IsValid() &&
- addr_range.GetBaseAddress().GetSection() == m_current_pc.GetSection() &&
- addr_range.GetBaseAddress().GetOffset() == m_current_pc.GetOffset()))) {
+ } else if (GetNextFrame()->m_frame_type == eTrapHandlerFrame ||
+ GetNextFrame()->m_frame_type == eDebuggerFrame) {
+ // Don't decrement if we're "above" an asynchronous event like
+ // sigtramp.
+ decr_pc_and_recompute_addr_range = false;
+ } else if (!addr_range.GetBaseAddress().IsValid() ||
+ addr_range.GetBaseAddress().GetSection() != m_current_pc.GetSection() ||
+ addr_range.GetBaseAddress().GetOffset() != m_current_pc.GetOffset()) {
+ // If our "current" pc isn't the start of a function, no need
+ // to decrement and recompute.
+ decr_pc_and_recompute_addr_range = false;
+ } else if (IsTrapHandlerSymbol(process, m_sym_ctx)) {
+ // Signal dispatch may set the return address of the handler it calls to
+ // point to the first byte of a return trampoline (like __kernel_rt_sigreturn),
+ // so do not decrement and recompute if the symbol we already found is a trap
+ // handler.
+ decr_pc_and_recompute_addr_range = false;
+ } else {
+ // Decrement to find the function containing the call.
decr_pc_and_recompute_addr_range = true;
}
Index: lldb/source/Plugins/Platform/Linux/PlatformLinux.cpp
===================================================================
--- lldb/source/Plugins/Platform/Linux/PlatformLinux.cpp
+++ lldb/source/Plugins/Platform/Linux/PlatformLinux.cpp
@@ -396,6 +396,8 @@
void PlatformLinux::CalculateTrapHandlerSymbolNames() {
m_trap_handlers.push_back(ConstString("_sigtramp"));
+ m_trap_handlers.push_back(ConstString("__kernel_rt_sigreturn"));
+ m_trap_handlers.push_back(ConstString("__restore_rt"));
}
MmapArgList PlatformLinux::GetMmapArgumentList(const ArchSpec &arch,
Index: lldb/source/Plugins/Instruction/PPC64/EmulateInstructionPPC64.cpp
===================================================================
--- lldb/source/Plugins/Instruction/PPC64/EmulateInstructionPPC64.cpp
+++ lldb/source/Plugins/Instruction/PPC64/EmulateInstructionPPC64.cpp
@@ -135,6 +135,7 @@
unwind_plan.SetSourceName("EmulateInstructionPPC64");
unwind_plan.SetSourcedFromCompiler(eLazyBoolNo);
unwind_plan.SetUnwindPlanValidAtAllInstructions(eLazyBoolYes);
+ unwind_plan.SetUnwindPlanForSignalTrap(eLazyBoolNo);
unwind_plan.SetReturnAddressRegister(gpr_lr_ppc64le);
return true;
}
Index: lldb/source/Plugins/Instruction/MIPS64/EmulateInstructionMIPS64.cpp
===================================================================
--- lldb/source/Plugins/Instruction/MIPS64/EmulateInstructionMIPS64.cpp
+++ lldb/source/Plugins/Instruction/MIPS64/EmulateInstructionMIPS64.cpp
@@ -1042,6 +1042,7 @@
unwind_plan.SetSourceName("EmulateInstructionMIPS64");
unwind_plan.SetSourcedFromCompiler(eLazyBoolNo);
unwind_plan.SetUnwindPlanValidAtAllInstructions(eLazyBoolYes);
+ unwind_plan.SetUnwindPlanForSignalTrap(eLazyBoolNo);
unwind_plan.SetReturnAddressRegister(dwarf_ra_mips64);
return true;
Index: lldb/source/Plugins/Instruction/MIPS/EmulateInstructionMIPS.cpp
===================================================================
--- lldb/source/Plugins/Instruction/MIPS/EmulateInstructionMIPS.cpp
+++ lldb/source/Plugins/Instruction/MIPS/EmulateInstructionMIPS.cpp
@@ -1150,6 +1150,7 @@
unwind_plan.SetSourceName("EmulateInstructionMIPS");
unwind_plan.SetSourcedFromCompiler(eLazyBoolNo);
unwind_plan.SetUnwindPlanValidAtAllInstructions(eLazyBoolYes);
+ unwind_plan.SetUnwindPlanForSignalTrap(eLazyBoolNo);
unwind_plan.SetReturnAddressRegister(dwarf_ra_mips);
return true;
Index: lldb/source/Plugins/Instruction/ARM64/EmulateInstructionARM64.cpp
===================================================================
--- lldb/source/Plugins/Instruction/ARM64/EmulateInstructionARM64.cpp
+++ lldb/source/Plugins/Instruction/ARM64/EmulateInstructionARM64.cpp
@@ -479,6 +479,7 @@
unwind_plan.SetSourceName("EmulateInstructionARM64");
unwind_plan.SetSourcedFromCompiler(eLazyBoolNo);
unwind_plan.SetUnwindPlanValidAtAllInstructions(eLazyBoolYes);
+ unwind_plan.SetUnwindPlanForSignalTrap(eLazyBoolNo);
unwind_plan.SetReturnAddressRegister(gpr_lr_arm64);
return true;
}
Index: lldb/source/Plugins/Instruction/ARM/EmulateInstructionARM.cpp
===================================================================
--- lldb/source/Plugins/Instruction/ARM/EmulateInstructionARM.cpp
+++ lldb/source/Plugins/Instruction/ARM/EmulateInstructionARM.cpp
@@ -14507,6 +14507,7 @@
unwind_plan.SetSourceName("EmulateInstructionARM");
unwind_plan.SetSourcedFromCompiler(eLazyBoolNo);
unwind_plan.SetUnwindPlanValidAtAllInstructions(eLazyBoolYes);
+ unwind_plan.SetUnwindPlanForSignalTrap(eLazyBoolNo);
unwind_plan.SetReturnAddressRegister(dwarf_lr);
return true;
}
Index: lldb/source/Plugins/ABI/SysV-x86_64/ABISysV_x86_64.cpp
===================================================================
--- lldb/source/Plugins/ABI/SysV-x86_64/ABISysV_x86_64.cpp
+++ lldb/source/Plugins/ABI/SysV-x86_64/ABISysV_x86_64.cpp
@@ -1022,6 +1022,7 @@
unwind_plan.SetSourceName("x86_64 default unwind plan");
unwind_plan.SetSourcedFromCompiler(eLazyBoolNo);
unwind_plan.SetUnwindPlanValidAtAllInstructions(eLazyBoolNo);
+ unwind_plan.SetUnwindPlanForSignalTrap(eLazyBoolNo);
return true;
}
Index: lldb/source/Plugins/ABI/SysV-ppc64/ABISysV_ppc64.cpp
===================================================================
--- lldb/source/Plugins/ABI/SysV-ppc64/ABISysV_ppc64.cpp
+++ lldb/source/Plugins/ABI/SysV-ppc64/ABISysV_ppc64.cpp
@@ -1017,6 +1017,7 @@
unwind_plan.SetSourceName("ppc64 default unwind plan");
unwind_plan.SetSourcedFromCompiler(eLazyBoolNo);
unwind_plan.SetUnwindPlanValidAtAllInstructions(eLazyBoolNo);
+ unwind_plan.SetUnwindPlanForSignalTrap(eLazyBoolNo);
unwind_plan.SetReturnAddressRegister(pc_reg_num);
return true;
}
Index: lldb/source/Plugins/ABI/SysV-ppc/ABISysV_ppc.cpp
===================================================================
--- lldb/source/Plugins/ABI/SysV-ppc/ABISysV_ppc.cpp
+++ lldb/source/Plugins/ABI/SysV-ppc/ABISysV_ppc.cpp
@@ -910,6 +910,7 @@
unwind_plan.SetSourceName("ppc default unwind plan");
unwind_plan.SetSourcedFromCompiler(eLazyBoolNo);
unwind_plan.SetUnwindPlanValidAtAllInstructions(eLazyBoolNo);
+ unwind_plan.SetUnwindPlanForSignalTrap(eLazyBoolNo);
unwind_plan.SetReturnAddressRegister(dwarf_lr);
return true;
}
Index: lldb/source/Plugins/ABI/SysV-mips64/ABISysV_mips64.cpp
===================================================================
--- lldb/source/Plugins/ABI/SysV-mips64/ABISysV_mips64.cpp
+++ lldb/source/Plugins/ABI/SysV-mips64/ABISysV_mips64.cpp
@@ -1168,6 +1168,7 @@
unwind_plan.SetSourceName("mips64 default unwind plan");
unwind_plan.SetSourcedFromCompiler(eLazyBoolNo);
unwind_plan.SetUnwindPlanValidAtAllInstructions(eLazyBoolNo);
+ unwind_plan.SetUnwindPlanForSignalTrap(eLazyBoolNo);
return true;
}
Index: lldb/source/Plugins/ABI/SysV-mips/ABISysV_mips.cpp
===================================================================
--- lldb/source/Plugins/ABI/SysV-mips/ABISysV_mips.cpp
+++ lldb/source/Plugins/ABI/SysV-mips/ABISysV_mips.cpp
@@ -997,6 +997,7 @@
unwind_plan.SetSourceName("mips default unwind plan");
unwind_plan.SetSourcedFromCompiler(eLazyBoolNo);
unwind_plan.SetUnwindPlanValidAtAllInstructions(eLazyBoolNo);
+ unwind_plan.SetUnwindPlanForSignalTrap(eLazyBoolNo);
return true;
}
Index: lldb/source/Plugins/ABI/SysV-i386/ABISysV_i386.cpp
===================================================================
--- lldb/source/Plugins/ABI/SysV-i386/ABISysV_i386.cpp
+++ lldb/source/Plugins/ABI/SysV-i386/ABISysV_i386.cpp
@@ -785,6 +785,7 @@
unwind_plan.SetSourceName("i386 default unwind plan");
unwind_plan.SetSourcedFromCompiler(eLazyBoolNo);
unwind_plan.SetUnwindPlanValidAtAllInstructions(eLazyBoolNo);
+ unwind_plan.SetUnwindPlanForSignalTrap(eLazyBoolNo);
return true;
}
Index: lldb/source/Plugins/ABI/SysV-hexagon/ABISysV_hexagon.cpp
===================================================================
--- lldb/source/Plugins/ABI/SysV-hexagon/ABISysV_hexagon.cpp
+++ lldb/source/Plugins/ABI/SysV-hexagon/ABISysV_hexagon.cpp
@@ -1247,6 +1247,7 @@
unwind_plan.SetSourceName("hexagon default unwind plan");
unwind_plan.SetSourcedFromCompiler(eLazyBoolNo);
unwind_plan.SetUnwindPlanValidAtAllInstructions(eLazyBoolNo);
+ unwind_plan.SetUnwindPlanForSignalTrap(eLazyBoolNo);
return true;
}
Index: lldb/source/Plugins/ABI/SysV-arm64/ABISysV_arm64.cpp
===================================================================
--- lldb/source/Plugins/ABI/SysV-arm64/ABISysV_arm64.cpp
+++ lldb/source/Plugins/ABI/SysV-arm64/ABISysV_arm64.cpp
@@ -1958,6 +1958,7 @@
unwind_plan.SetSourceName("arm64 at-func-entry default");
unwind_plan.SetSourcedFromCompiler(eLazyBoolNo);
unwind_plan.SetUnwindPlanValidAtAllInstructions(eLazyBoolNo);
+ unwind_plan.SetUnwindPlanForSignalTrap(eLazyBoolNo);
return true;
}
@@ -1982,6 +1983,7 @@
unwind_plan.SetSourceName("arm64 default unwind plan");
unwind_plan.SetSourcedFromCompiler(eLazyBoolNo);
unwind_plan.SetUnwindPlanValidAtAllInstructions(eLazyBoolNo);
+ unwind_plan.SetUnwindPlanForSignalTrap(eLazyBoolNo);
return true;
}
Index: lldb/source/Plugins/ABI/SysV-arm/ABISysV_arm.cpp
===================================================================
--- lldb/source/Plugins/ABI/SysV-arm/ABISysV_arm.cpp
+++ lldb/source/Plugins/ABI/SysV-arm/ABISysV_arm.cpp
@@ -1960,6 +1960,7 @@
unwind_plan.SetSourceName("arm default unwind plan");
unwind_plan.SetSourcedFromCompiler(eLazyBoolNo);
unwind_plan.SetUnwindPlanValidAtAllInstructions(eLazyBoolNo);
+ unwind_plan.SetUnwindPlanForSignalTrap(eLazyBoolNo);
return true;
}
Index: lldb/source/Plugins/ABI/MacOSX-i386/ABIMacOSX_i386.cpp
===================================================================
--- lldb/source/Plugins/ABI/MacOSX-i386/ABIMacOSX_i386.cpp
+++ lldb/source/Plugins/ABI/MacOSX-i386/ABIMacOSX_i386.cpp
@@ -1055,6 +1055,7 @@
unwind_plan.SetSourceName("i386 default unwind plan");
unwind_plan.SetSourcedFromCompiler(eLazyBoolNo);
unwind_plan.SetUnwindPlanValidAtAllInstructions(eLazyBoolNo);
+ unwind_plan.SetUnwindPlanForSignalTrap(eLazyBoolNo);
return true;
}
Index: lldb/source/Plugins/ABI/MacOSX-arm64/ABIMacOSX_arm64.cpp
===================================================================
--- lldb/source/Plugins/ABI/MacOSX-arm64/ABIMacOSX_arm64.cpp
+++ lldb/source/Plugins/ABI/MacOSX-arm64/ABIMacOSX_arm64.cpp
@@ -2011,6 +2011,7 @@
unwind_plan.SetSourceName("arm64-apple-darwin default unwind plan");
unwind_plan.SetSourcedFromCompiler(eLazyBoolNo);
unwind_plan.SetUnwindPlanValidAtAllInstructions(eLazyBoolNo);
+ unwind_plan.SetUnwindPlanForSignalTrap(eLazyBoolNo);
return true;
}
Index: lldb/source/Plugins/ABI/MacOSX-arm/ABIMacOSX_arm.cpp
===================================================================
--- lldb/source/Plugins/ABI/MacOSX-arm/ABIMacOSX_arm.cpp
+++ lldb/source/Plugins/ABI/MacOSX-arm/ABIMacOSX_arm.cpp
@@ -1846,6 +1846,7 @@
unwind_plan.SetSourceName("arm-apple-ios default unwind plan");
unwind_plan.SetSourcedFromCompiler(eLazyBoolNo);
unwind_plan.SetUnwindPlanValidAtAllInstructions(eLazyBoolNo);
+ unwind_plan.SetUnwindPlanForSignalTrap(eLazyBoolNo);
return true;
}
Index: lldb/packages/Python/lldbsuite/test/functionalities/signal/handle-abrt/main.c
===================================================================
--- /dev/null
+++ lldb/packages/Python/lldbsuite/test/functionalities/signal/handle-abrt/main.c
@@ -0,0 +1,25 @@
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+void handler(int sig)
+{
+ printf("Set a breakpoint here.\n");
+ exit(0);
+}
+
+void abort_caller() {
+ abort();
+}
+
+int main()
+{
+ if (signal(SIGABRT, handler) == SIG_ERR)
+ {
+ perror("signal");
+ return 1;
+ }
+
+ abort_caller();
+ return 2;
+}
Index: lldb/packages/Python/lldbsuite/test/functionalities/signal/handle-abrt/TestHandleAbort.py
===================================================================
--- /dev/null
+++ lldb/packages/Python/lldbsuite/test/functionalities/signal/handle-abrt/TestHandleAbort.py
@@ -0,0 +1,72 @@
+"""Test that we can unwind out of a SIGABRT handler"""
+
+from __future__ import print_function
+
+
+import os
+import re
+
+import lldb
+from lldbsuite.test.decorators import *
+from lldbsuite.test.lldbtest import *
+from lldbsuite.test import lldbutil
+
+
+class HandleAbortTestCase(TestBase):
+
+ mydir = TestBase.compute_mydir(__file__)
+
+ NO_DEBUG_INFO_TESTCASE = True
+
+ @skipIfWindows # signals do not exist on Windows
+ def test_inferior_handle_sigabrt(self):
+ """Inferior calls abort() and handles the resultant SIGABRT.
+ Stopped at a breakpoint in the handler, verify that the backtrace
+ includes the function that called abort()."""
+ self.build()
+ exe = self.getBuildArtifact("a.out")
+
+ # Create a target by the debugger.
+ target = self.dbg.CreateTarget(exe)
+ self.assertTrue(target, VALID_TARGET)
+
+ # launch
+ process = target.LaunchSimple(
+ None, None, self.get_process_working_directory())
+ self.assertTrue(process, PROCESS_IS_VALID)
+ self.assertEqual(process.GetState(), lldb.eStateStopped)
+ signo = process.GetUnixSignals().GetSignalNumberFromName("SIGABRT")
+
+ thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonSignal)
+ self.assertTrue(
+ thread and thread.IsValid(),
+ "Thread should be stopped due to a signal")
+ self.assertTrue(
+ thread.GetStopReasonDataCount() >= 1,
+ "There should be data in the event.")
+ self.assertEqual(thread.GetStopReasonDataAtIndex(0),
+ signo, "The stop signal should be SIGABRT")
+
+ # Continue to breakpoint in abort handler
+ bkpt = target.FindBreakpointByID(
+ lldbutil.run_break_set_by_source_regexp(self, "Set a breakpoint here"))
+ threads = lldbutil.continue_to_breakpoint(process, bkpt)
+ self.assertEqual(len(threads), 1, "Expected single thread")
+ thread = threads[0]
+
+ # Expect breakpoint in 'handler'
+ frame = thread.GetFrameAtIndex(0)
+ self.assertEqual(frame.GetDisplayFunctionName(), "handler", "Unexpected break?")
+
+ # Expect that unwinding should find 'abort_caller'
+ foundFoo = False
+ for frame in thread:
+ if frame.GetDisplayFunctionName() == "abort_caller":
+ foundFoo = True
+
+ self.assertTrue(foundFoo, "Unwinding did not find func that called abort")
+
+ # Continue until we exit.
+ process.Continue()
+ self.assertEqual(process.GetState(), lldb.eStateExited)
+ self.assertEqual(process.GetExitStatus(), 0)
Index: lldb/packages/Python/lldbsuite/test/functionalities/signal/handle-abrt/Makefile
===================================================================
--- /dev/null
+++ lldb/packages/Python/lldbsuite/test/functionalities/signal/handle-abrt/Makefile
@@ -0,0 +1,5 @@
+LEVEL = ../../../make
+
+C_SOURCES := main.c
+
+include $(LEVEL)/Makefile.rules
Index: lldb/include/lldb/Symbol/UnwindPlan.h
===================================================================
--- lldb/include/lldb/Symbol/UnwindPlan.h
+++ lldb/include/lldb/Symbol/UnwindPlan.h
@@ -370,6 +370,7 @@
m_return_addr_register(LLDB_INVALID_REGNUM), m_source_name(),
m_plan_is_sourced_from_compiler(eLazyBoolCalculate),
m_plan_is_valid_at_all_instruction_locations(eLazyBoolCalculate),
+ m_plan_is_for_signal_trap(eLazyBoolCalculate),
m_lsda_address(), m_personality_func_addr() {}
// Performs a deep copy of the plan, including all the rows (expensive).
@@ -463,6 +464,17 @@
m_plan_is_valid_at_all_instruction_locations = valid_at_all_insn;
}
+ // Is this UnwindPlan for a signal trap frame? If so, then its saved pc
+ // may have been set manually by the signal dispatch code and therefore
+ // not follow a call to the child frame.
+ lldb_private::LazyBool GetUnwindPlanForSignalTrap() const {
+ return m_plan_is_for_signal_trap;
+ }
+
+ void SetUnwindPlanForSignalTrap(lldb_private::LazyBool is_for_signal_trap) {
+ m_plan_is_for_signal_trap = is_for_signal_trap;
+ }
+
int GetRowCount() const;
void Clear() {
@@ -472,6 +484,7 @@
m_source_name.Clear();
m_plan_is_sourced_from_compiler = eLazyBoolCalculate;
m_plan_is_valid_at_all_instruction_locations = eLazyBoolCalculate;
+ m_plan_is_for_signal_trap = eLazyBoolCalculate;
m_lsda_address.Clear();
m_personality_func_addr.Clear();
}
@@ -502,6 +515,7 @@
m_source_name; // for logging, where this UnwindPlan originated from
lldb_private::LazyBool m_plan_is_sourced_from_compiler;
lldb_private::LazyBool m_plan_is_valid_at_all_instruction_locations;
+ lldb_private::LazyBool m_plan_is_for_signal_trap;
Address m_lsda_address; // Where the language specific data area exists in the
// module - used
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