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-rw-r--r--lldb/tools/debugserver/source/DNBBreakpoint.cpp329
1 files changed, 141 insertions, 188 deletions
diff --git a/lldb/tools/debugserver/source/DNBBreakpoint.cpp b/lldb/tools/debugserver/source/DNBBreakpoint.cpp
index 2645f173306..89a91287f9e 100644
--- a/lldb/tools/debugserver/source/DNBBreakpoint.cpp
+++ b/lldb/tools/debugserver/source/DNBBreakpoint.cpp
@@ -12,214 +12,167 @@
//===----------------------------------------------------------------------===//
#include "DNBBreakpoint.h"
+#include "DNBLog.h"
#include "MachProcess.h"
-#include <assert.h>
#include <algorithm>
+#include <assert.h>
#include <inttypes.h>
-#include "DNBLog.h"
-
-
-#pragma mark -- DNBBreakpoint
-DNBBreakpoint::DNBBreakpoint(nub_addr_t addr, nub_size_t byte_size, bool hardware) :
- m_retain_count (1),
- m_byte_size (static_cast<uint32_t>(byte_size)),
- m_opcode(),
- m_addr(addr),
- m_enabled(0),
- m_hw_preferred(hardware),
- m_is_watchpoint(0),
- m_watch_read(0),
- m_watch_write(0),
- m_hw_index(INVALID_NUB_HW_INDEX)
-{
-}
-
-DNBBreakpoint::~DNBBreakpoint()
-{
-}
-
-void
-DNBBreakpoint::Dump() const
-{
- if (IsBreakpoint())
- {
- DNBLog ("DNBBreakpoint addr = 0x%llx state = %s type = %s breakpoint hw_index = %i",
- (uint64_t)m_addr,
- m_enabled ? "enabled " : "disabled",
- IsHardware() ? "hardware" : "software",
- GetHardwareIndex());
- }
- else
- {
- DNBLog ("DNBBreakpoint addr = 0x%llx size = %llu state = %s type = %s watchpoint (%s%s) hw_index = %i",
- (uint64_t)m_addr,
- (uint64_t)m_byte_size,
- m_enabled ? "enabled " : "disabled",
- IsHardware() ? "hardware" : "software",
- m_watch_read ? "r" : "",
- m_watch_write ? "w" : "",
- GetHardwareIndex());
- }
-}
-
-#pragma mark -- DNBBreakpointList
-
-DNBBreakpointList::DNBBreakpointList()
-{
-}
-DNBBreakpointList::~DNBBreakpointList()
-{
-}
-
-
-DNBBreakpoint *
-DNBBreakpointList::Add(nub_addr_t addr, nub_size_t length, bool hardware)
-{
- m_breakpoints.insert(std::make_pair(addr, DNBBreakpoint(addr, length, hardware)));
- iterator pos = m_breakpoints.find (addr);
+#pragma mark-- DNBBreakpoint
+DNBBreakpoint::DNBBreakpoint(nub_addr_t addr, nub_size_t byte_size,
+ bool hardware)
+ : m_retain_count(1), m_byte_size(static_cast<uint32_t>(byte_size)),
+ m_opcode(), m_addr(addr), m_enabled(0), m_hw_preferred(hardware),
+ m_is_watchpoint(0), m_watch_read(0), m_watch_write(0),
+ m_hw_index(INVALID_NUB_HW_INDEX) {}
+
+DNBBreakpoint::~DNBBreakpoint() {}
+
+void DNBBreakpoint::Dump() const {
+ if (IsBreakpoint()) {
+ DNBLog("DNBBreakpoint addr = 0x%llx state = %s type = %s breakpoint "
+ "hw_index = %i",
+ (uint64_t)m_addr, m_enabled ? "enabled " : "disabled",
+ IsHardware() ? "hardware" : "software", GetHardwareIndex());
+ } else {
+ DNBLog("DNBBreakpoint addr = 0x%llx size = %llu state = %s type = %s "
+ "watchpoint (%s%s) hw_index = %i",
+ (uint64_t)m_addr, (uint64_t)m_byte_size,
+ m_enabled ? "enabled " : "disabled",
+ IsHardware() ? "hardware" : "software", m_watch_read ? "r" : "",
+ m_watch_write ? "w" : "", GetHardwareIndex());
+ }
+}
+
+#pragma mark-- DNBBreakpointList
+
+DNBBreakpointList::DNBBreakpointList() {}
+
+DNBBreakpointList::~DNBBreakpointList() {}
+
+DNBBreakpoint *DNBBreakpointList::Add(nub_addr_t addr, nub_size_t length,
+ bool hardware) {
+ m_breakpoints.insert(
+ std::make_pair(addr, DNBBreakpoint(addr, length, hardware)));
+ iterator pos = m_breakpoints.find(addr);
+ return &pos->second;
+}
+
+bool DNBBreakpointList::Remove(nub_addr_t addr) {
+ iterator pos = m_breakpoints.find(addr);
+ if (pos != m_breakpoints.end()) {
+ m_breakpoints.erase(pos);
+ return true;
+ }
+ return false;
+}
+
+DNBBreakpoint *DNBBreakpointList::FindByAddress(nub_addr_t addr) {
+ iterator pos = m_breakpoints.find(addr);
+ if (pos != m_breakpoints.end())
return &pos->second;
-}
-bool
-DNBBreakpointList::Remove (nub_addr_t addr)
-{
- iterator pos = m_breakpoints.find(addr);
- if (pos != m_breakpoints.end())
- {
- m_breakpoints.erase(pos);
- return true;
- }
- return false;
+ return NULL;
}
-DNBBreakpoint *
-DNBBreakpointList::FindByAddress (nub_addr_t addr)
-{
- iterator pos = m_breakpoints.find(addr);
- if (pos != m_breakpoints.end())
- return &pos->second;
-
- return NULL;
-}
+const DNBBreakpoint *DNBBreakpointList::FindByAddress(nub_addr_t addr) const {
+ const_iterator pos = m_breakpoints.find(addr);
+ if (pos != m_breakpoints.end())
+ return &pos->second;
-const DNBBreakpoint *
-DNBBreakpointList::FindByAddress (nub_addr_t addr) const
-{
- const_iterator pos = m_breakpoints.find(addr);
- if (pos != m_breakpoints.end())
- return &pos->second;
-
- return NULL;
+ return NULL;
}
// Finds the next breakpoint at an address greater than or equal to "addr"
-size_t
-DNBBreakpointList::FindBreakpointsThatOverlapRange (nub_addr_t addr,
- nub_addr_t size,
- std::vector<DNBBreakpoint *> &bps)
-{
- bps.clear();
- iterator end = m_breakpoints.end();
- // Find the first breakpoint with an address >= to "addr"
- iterator pos = m_breakpoints.lower_bound(addr);
- if (pos != end)
- {
- if (pos != m_breakpoints.begin())
- {
- // Watch out for a breakpoint at an address less than "addr" that might still overlap
- iterator prev_pos = pos;
- --prev_pos;
- if (prev_pos->second.IntersectsRange (addr, size, NULL, NULL, NULL))
- bps.push_back (&pos->second);
-
- }
-
- while (pos != end)
- {
- // When we hit a breakpoint whose start address is greater than "addr + size" we are done.
- // Do the math in a way that doesn't risk unsigned overflow with bad input.
- if ((pos->second.Address() - addr) >= size)
- break;
-
- // Check if this breakpoint overlaps, and if it does, add it to the list
- if (pos->second.IntersectsRange (addr, size, NULL, NULL, NULL))
- {
- bps.push_back (&pos->second);
- ++pos;
- }
- }
+size_t DNBBreakpointList::FindBreakpointsThatOverlapRange(
+ nub_addr_t addr, nub_addr_t size, std::vector<DNBBreakpoint *> &bps) {
+ bps.clear();
+ iterator end = m_breakpoints.end();
+ // Find the first breakpoint with an address >= to "addr"
+ iterator pos = m_breakpoints.lower_bound(addr);
+ if (pos != end) {
+ if (pos != m_breakpoints.begin()) {
+ // Watch out for a breakpoint at an address less than "addr" that might
+ // still overlap
+ iterator prev_pos = pos;
+ --prev_pos;
+ if (prev_pos->second.IntersectsRange(addr, size, NULL, NULL, NULL))
+ bps.push_back(&pos->second);
}
- return bps.size();
-}
-void
-DNBBreakpointList::Dump() const
-{
- const_iterator pos;
- const_iterator end = m_breakpoints.end();
- for (pos = m_breakpoints.begin(); pos != end; ++pos)
- pos->second.Dump();
-}
-
-void
-DNBBreakpointList::DisableAll ()
-{
- iterator pos, end = m_breakpoints.end();
- for (pos = m_breakpoints.begin(); pos != end; ++pos)
- pos->second.SetEnabled(false);
-}
-
-
-void
-DNBBreakpointList::RemoveTrapsFromBuffer (nub_addr_t addr, nub_size_t size, void *p) const
-{
- uint8_t *buf = (uint8_t *)p;
- const_iterator end = m_breakpoints.end();
- const_iterator pos = m_breakpoints.lower_bound(addr);
- while (pos != end && (pos->first < (addr + size)))
- {
- nub_addr_t intersect_addr;
- nub_size_t intersect_size;
- nub_size_t opcode_offset;
- const DNBBreakpoint &bp = pos->second;
- if (bp.IntersectsRange(addr, size, &intersect_addr, &intersect_size, &opcode_offset))
- {
- assert(addr <= intersect_addr && intersect_addr < addr + size);
- assert(addr < intersect_addr + intersect_size && intersect_addr + intersect_size <= addr + size);
- assert(opcode_offset + intersect_size <= bp.ByteSize());
- nub_size_t buf_offset = intersect_addr - addr;
- ::memcpy(buf + buf_offset, bp.SavedOpcodeBytes() + opcode_offset, intersect_size);
- }
+ while (pos != end) {
+ // When we hit a breakpoint whose start address is greater than "addr +
+ // size" we are done.
+ // Do the math in a way that doesn't risk unsigned overflow with bad
+ // input.
+ if ((pos->second.Address() - addr) >= size)
+ break;
+
+ // Check if this breakpoint overlaps, and if it does, add it to the list
+ if (pos->second.IntersectsRange(addr, size, NULL, NULL, NULL)) {
+ bps.push_back(&pos->second);
++pos;
+ }
+ }
+ }
+ return bps.size();
+}
+
+void DNBBreakpointList::Dump() const {
+ const_iterator pos;
+ const_iterator end = m_breakpoints.end();
+ for (pos = m_breakpoints.begin(); pos != end; ++pos)
+ pos->second.Dump();
+}
+
+void DNBBreakpointList::DisableAll() {
+ iterator pos, end = m_breakpoints.end();
+ for (pos = m_breakpoints.begin(); pos != end; ++pos)
+ pos->second.SetEnabled(false);
+}
+
+void DNBBreakpointList::RemoveTrapsFromBuffer(nub_addr_t addr, nub_size_t size,
+ void *p) const {
+ uint8_t *buf = (uint8_t *)p;
+ const_iterator end = m_breakpoints.end();
+ const_iterator pos = m_breakpoints.lower_bound(addr);
+ while (pos != end && (pos->first < (addr + size))) {
+ nub_addr_t intersect_addr;
+ nub_size_t intersect_size;
+ nub_size_t opcode_offset;
+ const DNBBreakpoint &bp = pos->second;
+ if (bp.IntersectsRange(addr, size, &intersect_addr, &intersect_size,
+ &opcode_offset)) {
+ assert(addr <= intersect_addr && intersect_addr < addr + size);
+ assert(addr < intersect_addr + intersect_size &&
+ intersect_addr + intersect_size <= addr + size);
+ assert(opcode_offset + intersect_size <= bp.ByteSize());
+ nub_size_t buf_offset = intersect_addr - addr;
+ ::memcpy(buf + buf_offset, bp.SavedOpcodeBytes() + opcode_offset,
+ intersect_size);
}
+ ++pos;
+ }
}
-void
-DNBBreakpointList::DisableAllBreakpoints(MachProcess *process)
-{
- iterator pos, end = m_breakpoints.end();
- for (pos = m_breakpoints.begin(); pos != end; ++pos)
- process->DisableBreakpoint(pos->second.Address(), false);
+void DNBBreakpointList::DisableAllBreakpoints(MachProcess *process) {
+ iterator pos, end = m_breakpoints.end();
+ for (pos = m_breakpoints.begin(); pos != end; ++pos)
+ process->DisableBreakpoint(pos->second.Address(), false);
}
-void
-DNBBreakpointList::DisableAllWatchpoints(MachProcess *process)
-{
- iterator pos, end = m_breakpoints.end();
- for (pos = m_breakpoints.begin(); pos != end; ++pos)
- process->DisableWatchpoint(pos->second.Address(), false);
+void DNBBreakpointList::DisableAllWatchpoints(MachProcess *process) {
+ iterator pos, end = m_breakpoints.end();
+ for (pos = m_breakpoints.begin(); pos != end; ++pos)
+ process->DisableWatchpoint(pos->second.Address(), false);
}
-void
-DNBBreakpointList::RemoveDisabled()
-{
- iterator pos = m_breakpoints.begin();
- while (pos != m_breakpoints.end())
- {
- if (!pos->second.IsEnabled())
- pos = m_breakpoints.erase(pos);
- else
- ++pos;
- }
+void DNBBreakpointList::RemoveDisabled() {
+ iterator pos = m_breakpoints.begin();
+ while (pos != m_breakpoints.end()) {
+ if (!pos->second.IsEnabled())
+ pos = m_breakpoints.erase(pos);
+ else
+ ++pos;
+ }
}
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