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Diffstat (limited to 'html/subx/038check_local_jumps.cc.html')
| -rw-r--r-- | html/subx/038check_local_jumps.cc.html | 125 |
1 files changed, 0 insertions, 125 deletions
diff --git a/html/subx/038check_local_jumps.cc.html b/html/subx/038check_local_jumps.cc.html deleted file mode 100644 index a37fe3f9..00000000 --- a/html/subx/038check_local_jumps.cc.html +++ /dev/null @@ -1,125 +0,0 @@ -<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> -<html> -<head> -<meta http-equiv="content-type" content="text/html; charset=UTF-8"> -<title>Mu - subx/038check_local_jumps.cc</title> -<meta name="Generator" content="Vim/7.4"> -<meta name="plugin-version" content="vim7.4_v2"> -<meta name="syntax" content="cpp"> -<meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy="> -<meta name="colorscheme" content="minimal"> -<style type="text/css"> -<!-- -pre { white-space: pre-wrap; font-family: monospace; color: #aaaaaa; background-color: #080808; } -body { font-size: 12pt; font-family: monospace; color: #aaaaaa; background-color: #080808; } -a { color:#eeeeee; text-decoration: none; } -a:hover { text-decoration: underline; } -* { font-size: 12pt; font-size: 1em; } -.Constant { color: #00a0a0; } -.Special { color: #c00000; } -.Comment { color: #9090ff; } -.Comment a { color:#0000ee; text-decoration:underline; } -.Delimiter { color: #800080; } -.LineNr { color: #444444; } -.Identifier { color: #c0a020; } -.Normal { color: #aaaaaa; background-color: #080808; padding-bottom: 1px; } -.traceContains { color: #008000; } -.cSpecial { color: #008000; } ---> -</style> - -<script type='text/javascript'> -<!-- - -/* function to open any folds containing a jumped-to line before jumping to it */ -function JumpToLine() -{ - var lineNum; - lineNum = window.location.hash; - lineNum = lineNum.substr(1); /* strip off '#' */ - - if (lineNum.indexOf('L') == -1) { - lineNum = 'L'+lineNum; - } - lineElem = document.getElementById(lineNum); - /* Always jump to new location even if the line was hidden inside a fold, or - * we corrected the raw number to a line ID. - */ - if (lineElem) { - lineElem.scrollIntoView(true); - } - return true; -} -if ('onhashchange' in window) { - window.onhashchange = JumpToLine; -} - ---> -</script> -</head> -<body onload='JumpToLine();'> -<pre id='vimCodeElement'> -<span id="L1" class="LineNr"> 1 </span><span class="Comment">//: Make sure that we never jump from one function to within another.</span> -<span id="L2" class="LineNr"> 2 </span><span class="Comment">//:</span> -<span id="L3" class="LineNr"> 3 </span><span class="Comment">//: (The check for label types already ensures we can't jump to the start of</span> -<span id="L4" class="LineNr"> 4 </span><span class="Comment">//: another function.)</span> -<span id="L5" class="LineNr"> 5 </span> -<span id="L6" class="LineNr"> 6 </span><span class="Delimiter">:(scenario jump_to_different_function)</span> -<span id="L7" class="LineNr"> 7 </span><span class="Special">% Hide_errors = true;</span> -<span id="L8" class="LineNr"> 8 </span>== <span class="Constant">0x1</span> -<span id="L9" class="LineNr"> 9 </span><span class="Normal">fn1</span>: -<span id="L10" class="LineNr">10 </span> 7e/jump-<span class="Normal">if</span> $target/disp8 -<span id="L11" class="LineNr">11 </span><span class="Normal">fn2</span>: -<span id="L12" class="LineNr">12 </span> $target: -<span id="L13" class="LineNr">13 </span><span class="traceContains">+error: '7e/jump-if $target/disp8' in function 'fn1': jump to within another function 'fn2' is a *really* bad idea</span> -<span id="L14" class="LineNr">14 </span> -<span id="L15" class="LineNr">15 </span><span class="Delimiter">:(before "Rewrite Labels(segment code)")</span> -<span id="L16" class="LineNr">16 </span><a href='038check_local_jumps.cc.html#L19'>check_local_jumps</a><span class="Delimiter">(</span>code<span class="Delimiter">);</span> -<span id="L17" class="LineNr">17 </span><span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L217'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> -<span id="L18" class="LineNr">18 </span><span class="Delimiter">:(code)</span> -<span id="L19" class="LineNr">19 </span><span class="Normal">void</span> <a href='038check_local_jumps.cc.html#L19'>check_local_jumps</a><span class="Delimiter">(</span><span class="Normal">const</span> segment& code<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L20" class="LineNr">20 </span> map<<span class="Comment">/*</span><span class="Comment">jump target</span><span class="Comment">*/</span>string<span class="Delimiter">,</span> <span class="Comment">/*</span><span class="Comment">containing call target</span><span class="Comment">*/</span>string> function<span class="Delimiter">;</span> -<span id="L21" class="LineNr">21 </span> <a href='038check_local_jumps.cc.html#L41'>compute_function_target</a><span class="Delimiter">(</span>code<span class="Delimiter">,</span> function<span class="Delimiter">);</span> -<span id="L22" class="LineNr">22 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L217'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> -<span id="L23" class="LineNr">23 </span> string current_function<span class="Delimiter">;</span> -<span id="L24" class="LineNr">24 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>code<span class="Delimiter">.</span><a href='011run.cc.html#L106'>lines</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L25" class="LineNr">25 </span> <span class="Normal">const</span> line& inst = code<span class="Delimiter">.</span><a href='011run.cc.html#L106'>lines</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> -<span id="L26" class="LineNr">26 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L111'>words</a><span class="Delimiter">)</span> == <span class="Constant">1</span> && <a href='035labels.cc.html#L115'>is_label</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L111'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span> -<span id="L27" class="LineNr">27 </span> <span class="Comment">// label definition</span> -<span id="L28" class="LineNr">28 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L111'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span><a href='011run.cc.html#L118'>data</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> != <span class="Constant">'$'</span><span class="Delimiter">)</span> -<span id="L29" class="LineNr">29 </span> current_function = <a href='035labels.cc.html#L176'>drop_last</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L111'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span><a href='011run.cc.html#L118'>data</a><span class="Delimiter">);</span> -<span id="L30" class="LineNr">30 </span> <span class="Delimiter">}</span> -<span id="L31" class="LineNr">31 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='036recommend_labels.cc.html#L37'>is_jump</a><span class="Delimiter">(</span>inst<span class="Delimiter">))</span> <span class="Delimiter">{</span> -<span id="L32" class="LineNr">32 </span> <span class="Normal">const</span> word& target = inst<span class="Delimiter">.</span><a href='011run.cc.html#L111'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><a href='031check_operands.cc.html#L276'>first_operand</a><span class="Delimiter">(</span>inst<span class="Delimiter">));</span> -<span id="L33" class="LineNr">33 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span>function<span class="Delimiter">,</span> target<span class="Delimiter">.</span><a href='011run.cc.html#L118'>data</a><span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> <span class="Comment">// error/warning handled elsewhere</span> -<span id="L34" class="LineNr">34 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>get<span class="Delimiter">(</span>function<span class="Delimiter">,</span> target<span class="Delimiter">.</span><a href='011run.cc.html#L118'>data</a><span class="Delimiter">)</span> == current_function<span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> -<span id="L35" class="LineNr">35 </span> <a href='003trace.cc.html#L203'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"' in function '"</span> << current_function << <span class="Constant">"': jump to within another function '"</span> << get<span class="Delimiter">(</span>function<span class="Delimiter">,</span> target<span class="Delimiter">.</span>data<span class="Delimiter">)</span> << <span class="Constant">"' is a *really* bad idea</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L222'>end</a><span class="Delimiter">();</span> -<span id="L36" class="LineNr">36 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> -<span id="L37" class="LineNr">37 </span> <span class="Delimiter">}</span> -<span id="L38" class="LineNr">38 </span> <span class="Delimiter">}</span> -<span id="L39" class="LineNr">39 </span><span class="Delimiter">}</span> -<span id="L40" class="LineNr">40 </span> -<span id="L41" class="LineNr">41 </span><span class="Normal">void</span> <a href='038check_local_jumps.cc.html#L41'>compute_function_target</a><span class="Delimiter">(</span><span class="Normal">const</span> segment& code<span class="Delimiter">,</span> map<string<span class="Delimiter">,</span> string>& out<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L42" class="LineNr">42 </span> string current_function<span class="Delimiter">;</span> -<span id="L43" class="LineNr">43 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>code<span class="Delimiter">.</span><a href='011run.cc.html#L106'>lines</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L44" class="LineNr">44 </span> <span class="Normal">const</span> line& inst = code<span class="Delimiter">.</span><a href='011run.cc.html#L106'>lines</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> -<span id="L45" class="LineNr">45 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L111'>words</a><span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> -<span id="L46" class="LineNr">46 </span> <span class="Normal">const</span> word& curr = inst<span class="Delimiter">.</span><a href='011run.cc.html#L111'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span> -<span id="L47" class="LineNr">47 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!is_label<span class="Delimiter">(</span>curr<span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> -<span id="L48" class="LineNr">48 </span> <span class="Normal">const</span> string& <a href='003trace.cc.html#L73'>label</a> = <a href='035labels.cc.html#L176'>drop_last</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span><a href='011run.cc.html#L118'>data</a><span class="Delimiter">);</span> -<span id="L49" class="LineNr">49 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L73'>label</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> != <span class="Constant">'$'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L50" class="LineNr">50 </span> current_function = <a href='003trace.cc.html#L73'>label</a><span class="Delimiter">;</span> -<span id="L51" class="LineNr">51 </span> <span class="Identifier">continue</span><span class="Delimiter">;</span> -<span id="L52" class="LineNr">52 </span> <span class="Delimiter">}</span> -<span id="L53" class="LineNr">53 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L247'>contains_key</a><span class="Delimiter">(</span>out<span class="Delimiter">,</span> <a href='003trace.cc.html#L73'>label</a><span class="Delimiter">))</span> <span class="Delimiter">{</span> -<span id="L54" class="LineNr">54 </span> <a href='003trace.cc.html#L203'>raise</a> << <span class="Constant">"duplicate <a href='003trace.cc.html#L73'>label</a> '"</span> << label << <span class="Constant">"'</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L222'>end</a><span class="Delimiter">();</span> -<span id="L55" class="LineNr">55 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> -<span id="L56" class="LineNr">56 </span> <span class="Delimiter">}</span> -<span id="L57" class="LineNr">57 </span> <span class="Comment">// current_function can be empty! if so that would be 'main'.</span> -<span id="L58" class="LineNr">58 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span>out<span class="Delimiter">,</span> <a href='003trace.cc.html#L73'>label</a><span class="Delimiter">,</span> current_function<span class="Delimiter">);</span> -<span id="L59" class="LineNr">59 </span> <span class="Delimiter">}</span> -<span id="L60" class="LineNr">60 </span><span class="Delimiter">}</span> -</pre> -</body> -</html> -<!-- vim: set foldmethod=manual : --> |