mirror of
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synced 2026-01-15 12:25:46 +08:00
05097246f3
This is intended as a clean up after the big clang-format commit
(r280751), which unfortunately resulted in many of the comment
paragraphs in LLDB being very hard to read.
FYI, the script I used was:
import textwrap
import commands
import os
import sys
import re
tmp = "%s.tmp"%sys.argv[1]
out = open(tmp, "w+")
with open(sys.argv[1], "r") as f:
header = ""
text = ""
comment = re.compile(r'^( *//) ([^ ].*)$')
special = re.compile(r'^((([A-Z]+[: ])|([0-9]+ )).*)|(.*;)$')
for line in f:
match = comment.match(line)
if match and not special.match(match.group(2)):
# skip intentionally short comments.
if not text and len(match.group(2)) < 40:
out.write(line)
continue
if text:
text += " " + match.group(2)
else:
header = match.group(1)
text = match.group(2)
continue
if text:
filled = textwrap.wrap(text, width=(78-len(header)),
break_long_words=False)
for l in filled:
out.write(header+" "+l+'\n')
text = ""
out.write(line)
os.rename(tmp, sys.argv[1])
Differential Revision: https://reviews.llvm.org/D46144
llvm-svn: 331197
103 lines
3.5 KiB
C++
103 lines
3.5 KiB
C++
//===-- StackID.cpp ---------------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// C Includes
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// C++ Includes
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// Other libraries and framework includes
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// Project includes
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#include "lldb/Target/StackID.h"
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#include "lldb/Symbol/Block.h"
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#include "lldb/Symbol/Symbol.h"
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#include "lldb/Symbol/SymbolContext.h"
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#include "lldb/Utility/Stream.h"
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using namespace lldb_private;
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void StackID::Dump(Stream *s) {
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s->Printf("StackID (pc = 0x%16.16" PRIx64 ", cfa = 0x%16.16" PRIx64
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", symbol_scope = %p",
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m_pc, m_cfa, static_cast<void *>(m_symbol_scope));
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if (m_symbol_scope) {
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SymbolContext sc;
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m_symbol_scope->CalculateSymbolContext(&sc);
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if (sc.block)
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s->Printf(" (Block {0x%8.8" PRIx64 "})", sc.block->GetID());
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else if (sc.symbol)
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s->Printf(" (Symbol{0x%8.8x})", sc.symbol->GetID());
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}
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s->PutCString(") ");
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}
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bool lldb_private::operator==(const StackID &lhs, const StackID &rhs) {
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if (lhs.GetCallFrameAddress() != rhs.GetCallFrameAddress())
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return false;
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SymbolContextScope *lhs_scope = lhs.GetSymbolContextScope();
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SymbolContextScope *rhs_scope = rhs.GetSymbolContextScope();
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// Only compare the PC values if both symbol context scopes are nullptr
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if (lhs_scope == nullptr && rhs_scope == nullptr)
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return lhs.GetPC() == rhs.GetPC();
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return lhs_scope == rhs_scope;
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}
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bool lldb_private::operator!=(const StackID &lhs, const StackID &rhs) {
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if (lhs.GetCallFrameAddress() != rhs.GetCallFrameAddress())
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return true;
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SymbolContextScope *lhs_scope = lhs.GetSymbolContextScope();
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SymbolContextScope *rhs_scope = rhs.GetSymbolContextScope();
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if (lhs_scope == nullptr && rhs_scope == nullptr)
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return lhs.GetPC() != rhs.GetPC();
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return lhs_scope != rhs_scope;
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}
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bool lldb_private::operator<(const StackID &lhs, const StackID &rhs) {
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const lldb::addr_t lhs_cfa = lhs.GetCallFrameAddress();
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const lldb::addr_t rhs_cfa = rhs.GetCallFrameAddress();
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// FIXME: We are assuming that the stacks grow downward in memory. That's not
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// necessary, but true on
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// all the machines we care about at present. If this changes, we'll have to
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// deal with that. The ABI is the agent who knows this ordering, but the
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// StackID has no access to the ABI. The most straightforward way to handle
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// this is to add a "m_grows_downward" bool to the StackID, and set it in the
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// constructor. But I'm not going to waste a bool per StackID on this till we
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// need it.
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if (lhs_cfa != rhs_cfa)
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return lhs_cfa < rhs_cfa;
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SymbolContextScope *lhs_scope = lhs.GetSymbolContextScope();
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SymbolContextScope *rhs_scope = rhs.GetSymbolContextScope();
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if (lhs_scope != nullptr && rhs_scope != nullptr) {
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// Same exact scope, lhs is not less than (younger than rhs)
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if (lhs_scope == rhs_scope)
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return false;
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SymbolContext lhs_sc;
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SymbolContext rhs_sc;
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lhs_scope->CalculateSymbolContext(&lhs_sc);
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rhs_scope->CalculateSymbolContext(&rhs_sc);
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// Items with the same function can only be compared
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if (lhs_sc.function == rhs_sc.function && lhs_sc.function != nullptr &&
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lhs_sc.block != nullptr && rhs_sc.function != nullptr &&
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rhs_sc.block != nullptr) {
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return rhs_sc.block->Contains(lhs_sc.block);
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}
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}
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return false;
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}
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