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[LLDB] [Windows] Add missing ifdefs to fix building for non-x86 architectures 

While debugging on those architectures might not be supported yet,
the generic code should still be buildable. This file accesses x86
specific fields in the CONTEXT struct.

Differential Revision: https://reviews.llvm.org/D67911

llvm-svn: 372699
This commit is contained in:
Martin Storsjo 2019-09-24 08:39:06 +00:00
parent 88a5bba7b5
commit 02dddfd2ae
1 changed files with 14 additions and 1 deletions
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15
lldb/source/Plugins/Process/Windows/Common/RegisterContextWindows.cpp
View File

@ -84,7 +84,7 @@ bool RegisterContextWindows::AddHardwareBreakpoint(uint32_t slot,
case 1:
case 2:
case 4:
#if defined(__x86_64__) || defined(_M_AMD64)
#if defined(_WIN64)
case 8:
#endif
break;
@ -95,6 +95,7 @@ bool RegisterContextWindows::AddHardwareBreakpoint(uint32_t slot,
if (!CacheAllRegisterValues())
return false;
#if defined(__i386__) || defined(_M_IX86) || defined(__x86_64__) || defined(_M_AMD64)
unsigned shift = 2 * slot;
m_context.Dr7 |= 1ULL << shift;
@ -109,6 +110,12 @@ bool RegisterContextWindows::AddHardwareBreakpoint(uint32_t slot,
m_context.Dr7 |= (read ? 3ULL : (write ? 1ULL : 0)) << shift;
return ApplyAllRegisterValues();
#else
Log *log = ProcessWindowsLog::GetLogIfAny(WINDOWS_LOG_REGISTERS);
LLDB_LOG(log, "hardware breakpoints not currently supported on this arch");
return false;
#endif
}
bool RegisterContextWindows::RemoveHardwareBreakpoint(uint32_t slot) {
@ -118,19 +125,25 @@ bool RegisterContextWindows::RemoveHardwareBreakpoint(uint32_t slot) {
if (!CacheAllRegisterValues())
return false;
#if defined(__i386__) || defined(_M_IX86) || defined(__x86_64__) || defined(_M_AMD64)
unsigned shift = 2 * slot;
m_context.Dr7 &= ~(1ULL << shift);
return ApplyAllRegisterValues();
#else
return false;
#endif
}
uint32_t RegisterContextWindows::GetTriggeredHardwareBreakpointSlotId() {
if (!CacheAllRegisterValues())
return LLDB_INVALID_INDEX32;
#if defined(__i386__) || defined(_M_IX86) || defined(__x86_64__) || defined(_M_AMD64)
for (unsigned i = 0UL; i < NUM_HARDWARE_BREAKPOINT_SLOTS; i++)
if (m_context.Dr6 & (1ULL << i))
return i;
#endif
return LLDB_INVALID_INDEX32;
}