diff options
Diffstat (limited to 'html/subx/012elf.cc.html')
| -rw-r--r-- | html/subx/012elf.cc.html | 71 |
1 files changed, 36 insertions, 35 deletions
diff --git a/html/subx/012elf.cc.html b/html/subx/012elf.cc.html index bb69ca45..99cf31ca 100644 --- a/html/subx/012elf.cc.html +++ b/html/subx/012elf.cc.html @@ -15,6 +15,7 @@ body { font-size:12pt; font-family: monospace; color: #000000; background-color: a { color:inherit; } * { font-size:12pt; font-size: 1em; } .CommentedCode { color: #8a8a8a; } +.PreProc { color: #c000c0; } .LineNr { } .Constant { color: #008787; } .Delimiter { color: #c000c0; } @@ -65,28 +66,28 @@ if ('onhashchange' in window) { <span id="L5" class="LineNr"> 5 </span><span class="Delimiter">:(before "End Main")</span> <span id="L6" class="LineNr"> 6 </span>assert<span class="Delimiter">(</span>argc > <span class="Constant">1</span><span class="Delimiter">);</span> <span id="L7" class="LineNr"> 7 </span><span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L98'>is_equal</a><span class="Delimiter">(</span>argv[<span class="Constant">1</span>]<span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> -<span id="L8" class="LineNr"> 8 </span> <a href='003trace.cc.html#L197'>START_TRACING_UNTIL_END_OF_SCOPE</a><span class="Delimiter">;</span> -<span id="L9" class="LineNr"> 9 </span> <a href='003trace.cc.html#L98'>trace</a><span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"=== Starting to run"</span> << end<span class="Delimiter">();</span> +<span id="L8" class="LineNr"> 8 </span> <a href='003trace.cc.html#L182'>START_TRACING_UNTIL_END_OF_SCOPE</a><span class="Delimiter">;</span> +<span id="L9" class="LineNr"> 9 </span> <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"=== Starting to run"</span> << end<span class="Delimiter">();</span> <span id="L10" class="LineNr"> 10 </span> assert<span class="Delimiter">(</span>argc > <span class="Constant">2</span><span class="Delimiter">);</span> <span id="L11" class="LineNr"> 11 </span> <a href='000organization.cc.html#L148'>reset</a><span class="Delimiter">();</span> <span id="L12" class="LineNr"> 12 </span> cerr << std::hex<span class="Delimiter">;</span> <span id="L13" class="LineNr"> 13 </span> <a href='012elf.cc.html#L21'>load_elf</a><span class="Delimiter">(</span>argv[<span class="Constant">2</span>]<span class="Delimiter">,</span> argc<span class="Delimiter">,</span> argv<span class="Delimiter">);</span> <span id="L14" class="LineNr"> 14 </span> <span class="Normal">while</span> <span class="Delimiter">(</span>EIP < <span class="Special"><a href='010---vm.cc.html#L194'>End_of_program</a></span><span class="Delimiter">)</span> <span class="Comment">// weak final-gasp termination check</span> <span id="L15" class="LineNr"> 15 </span> <a href='010---vm.cc.html#L296'>run_one_instruction</a><span class="Delimiter">();</span> -<span id="L16" class="LineNr"> 16 </span> <a href='003trace.cc.html#L217'>raise</a> << <span class="Constant">"executed past end of the world: "</span> << EIP << <span class="Constant">" vs "</span> << <span class="Special"><a href='010---vm.cc.html#L194'>End_of_program</a></span> << <span class="cSpecial">'\n'</span> << end<span class="Delimiter">();</span> +<span id="L16" class="LineNr"> 16 </span> <a href='003trace.cc.html#L202'>raise</a> << <span class="Constant">"executed past end of the world: "</span> << EIP << <span class="Constant">" vs "</span> << <span class="Special"><a href='010---vm.cc.html#L194'>End_of_program</a></span> << <span class="cSpecial">'\n'</span> << end<span class="Delimiter">();</span> <span id="L17" class="LineNr"> 17 </span> <span class="Identifier">return</span> <span class="Constant">1</span><span class="Delimiter">;</span> <span id="L18" class="LineNr"> 18 </span><span class="Delimiter">}</span> <span id="L19" class="LineNr"> 19 </span> <span id="L20" class="LineNr"> 20 </span><span class="Delimiter">:(code)</span> <span id="L21" class="LineNr"> 21 </span><span class="Normal">void</span> <a href='012elf.cc.html#L21'>load_elf</a><span class="Delimiter">(</span><span class="Normal">const</span> string& filename<span class="Delimiter">,</span> <span class="Normal">int</span> argc<span class="Delimiter">,</span> <span class="Normal">char</span>* argv[]<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L22" class="LineNr"> 22 </span> <span class="Normal">int</span> fd = open<span class="Delimiter">(</span>filename<span class="Delimiter">.</span>c_str<span class="Delimiter">(),</span> O_RDONLY<span class="Delimiter">);</span> -<span id="L23" class="LineNr"> 23 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>fd < <span class="Constant">0</span><span class="Delimiter">)</span> <a href='003trace.cc.html#L217'>raise</a> << filename<span class="Delimiter">.</span>c_str<span class="Delimiter">()</span> << <span class="Constant">": open"</span> << <a href='012elf.cc.html#L163'>perr</a><span class="Delimiter">()</span> << <span class="cSpecial">'\n'</span> << <a href='012elf.cc.html#L172'>die</a><span class="Delimiter">();</span> +<span id="L23" class="LineNr"> 23 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>fd < <span class="Constant">0</span><span class="Delimiter">)</span> <a href='003trace.cc.html#L202'>raise</a> << filename<span class="Delimiter">.</span>c_str<span class="Delimiter">()</span> << <span class="Constant">": open"</span> << <a href='012elf.cc.html#L163'>perr</a><span class="Delimiter">()</span> << <span class="cSpecial">'\n'</span> << <a href='012elf.cc.html#L172'>die</a><span class="Delimiter">();</span> <span id="L24" class="LineNr"> 24 </span> <span class="Normal">off_t</span> size = lseek<span class="Delimiter">(</span>fd<span class="Delimiter">,</span> <span class="Constant">0</span><span class="Delimiter">,</span> <span class="Constant">SEEK_END</span><span class="Delimiter">);</span> <span id="L25" class="LineNr"> 25 </span> lseek<span class="Delimiter">(</span>fd<span class="Delimiter">,</span> <span class="Constant">0</span><span class="Delimiter">,</span> <span class="Constant">SEEK_SET</span><span class="Delimiter">);</span> <span id="L26" class="LineNr"> 26 </span> <span class="Normal">uint8_t</span>* elf_contents = <span class="Normal">static_cast</span><<span class="Normal">uint8_t</span>*><span class="Delimiter">(</span>malloc<span class="Delimiter">(</span>size<span class="Delimiter">));</span> -<span id="L27" class="LineNr"> 27 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>elf_contents == <span class="Constant">NULL</span><span class="Delimiter">)</span> <a href='003trace.cc.html#L217'>raise</a> << <span class="Constant">"malloc("</span> << size << <span class="Constant">')'</span> << <a href='012elf.cc.html#L163'>perr</a><span class="Delimiter">()</span> << <span class="cSpecial">'\n'</span> << <a href='012elf.cc.html#L172'>die</a><span class="Delimiter">();</span> +<span id="L27" class="LineNr"> 27 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>elf_contents == <span class="Constant">NULL</span><span class="Delimiter">)</span> <a href='003trace.cc.html#L202'>raise</a> << <span class="Constant">"malloc("</span> << size << <span class="Constant">')'</span> << <a href='012elf.cc.html#L163'>perr</a><span class="Delimiter">()</span> << <span class="cSpecial">'\n'</span> << <a href='012elf.cc.html#L172'>die</a><span class="Delimiter">();</span> <span id="L28" class="LineNr"> 28 </span> <span class="Normal">ssize_t</span> read_size = read<span class="Delimiter">(</span>fd<span class="Delimiter">,</span> elf_contents<span class="Delimiter">,</span> size<span class="Delimiter">);</span> -<span id="L29" class="LineNr"> 29 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>size != read_size<span class="Delimiter">)</span> <a href='003trace.cc.html#L217'>raise</a> << <span class="Constant">"read → "</span> << size << <span class="Constant">" (!= "</span> << read_size << <span class="Constant">')'</span> << <a href='012elf.cc.html#L163'>perr</a><span class="Delimiter">()</span> << <span class="cSpecial">'\n'</span> << <a href='012elf.cc.html#L172'>die</a><span class="Delimiter">();</span> +<span id="L29" class="LineNr"> 29 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>size != read_size<span class="Delimiter">)</span> <a href='003trace.cc.html#L202'>raise</a> << <span class="Constant">"read → "</span> << size << <span class="Constant">" (!= "</span> << read_size << <span class="Constant">')'</span> << <a href='012elf.cc.html#L163'>perr</a><span class="Delimiter">()</span> << <span class="cSpecial">'\n'</span> << <a href='012elf.cc.html#L172'>die</a><span class="Delimiter">();</span> <span id="L30" class="LineNr"> 30 </span> <a href='012elf.cc.html#L34'>load_elf_contents</a><span class="Delimiter">(</span>elf_contents<span class="Delimiter">,</span> size<span class="Delimiter">,</span> argc<span class="Delimiter">,</span> argv<span class="Delimiter">);</span> <span id="L31" class="LineNr"> 31 </span> free<span class="Delimiter">(</span>elf_contents<span class="Delimiter">);</span> <span id="L32" class="LineNr"> 32 </span><span class="Delimiter">}</span> @@ -95,25 +96,25 @@ if ('onhashchange' in window) { <span id="L35" class="LineNr"> 35 </span> <span class="Normal">uint8_t</span> magic[<span class="Constant">5</span>] = <span class="Delimiter">{</span><span class="Constant">0</span><span class="Delimiter">};</span> <span id="L36" class="LineNr"> 36 </span> memcpy<span class="Delimiter">(</span>magic<span class="Delimiter">,</span> elf_contents<span class="Delimiter">,</span> <span class="Constant">4</span><span class="Delimiter">);</span> <span id="L37" class="LineNr"> 37 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>memcmp<span class="Delimiter">(</span>magic<span class="Delimiter">,</span> <span class="Constant">"\177ELF"</span><span class="Delimiter">,</span> <span class="Constant">4</span><span class="Delimiter">)</span> != <span class="Constant">0</span><span class="Delimiter">)</span> -<span id="L38" class="LineNr"> 38 </span> <a href='003trace.cc.html#L217'>raise</a> << <span class="Constant">"Invalid ELF file; starts with \"" << magic << '"</span>' << <a href='012elf.cc.html#L172'>die</a><span class="Delimiter">();</span> +<span id="L38" class="LineNr"> 38 </span> <a href='003trace.cc.html#L202'>raise</a> << <span class="Constant">"Invalid ELF file; starts with \"" << magic << '"</span>' << <a href='012elf.cc.html#L172'>die</a><span class="Delimiter">();</span> <span id="L39" class="LineNr"> 39 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>elf_contents[<span class="Constant">4</span>] != <span class="Constant">1</span><span class="Delimiter">)</span> -<span id="L40" class="LineNr"> 40 </span> <a href='003trace.cc.html#L217'>raise</a> << <span class="Constant">"Only 32-bit ELF files (4-byte words; virtual addresses up to 4GB) supported.\n"</span> << <a href='012elf.cc.html#L172'>die</a><span class="Delimiter">();</span> +<span id="L40" class="LineNr"> 40 </span> <a href='003trace.cc.html#L202'>raise</a> << <span class="Constant">"Only 32-bit ELF files (4-byte words; virtual addresses up to 4GB) supported.\n"</span> << <a href='012elf.cc.html#L172'>die</a><span class="Delimiter">();</span> <span id="L41" class="LineNr"> 41 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>elf_contents[<span class="Constant">5</span>] != <span class="Constant">1</span><span class="Delimiter">)</span> -<span id="L42" class="LineNr"> 42 </span> <a href='003trace.cc.html#L217'>raise</a> << <span class="Constant">"Only little-endian ELF files supported.\n"</span> << <a href='012elf.cc.html#L172'>die</a><span class="Delimiter">();</span> +<span id="L42" class="LineNr"> 42 </span> <a href='003trace.cc.html#L202'>raise</a> << <span class="Constant">"Only little-endian ELF files supported.\n"</span> << <a href='012elf.cc.html#L172'>die</a><span class="Delimiter">();</span> <span id="L43" class="LineNr"> 43 </span> <span class="Comment">// unused: remaining 10 bytes of e_ident</span> <span id="L44" class="LineNr"> 44 </span> <span class="Normal">uint32_t</span> e_machine_type = <a href='012elf.cc.html#L154'>u32_in</a><span class="Delimiter">(</span>&elf_contents[<span class="Constant">16</span>]<span class="Delimiter">);</span> <span id="L45" class="LineNr"> 45 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>e_machine_type != <span class="Constant">0x00030002</span><span class="Delimiter">)</span> -<span id="L46" class="LineNr"> 46 </span> <a href='003trace.cc.html#L217'>raise</a> << <span class="Constant">"ELF type/machine 0x"</span> << <a href='010---vm.cc.html#L433'>HEXWORD</a> << e_machine_type << <span class="Constant">" isn't i386 executable\n"</span> << die<span class="Delimiter">();</span> +<span id="L46" class="LineNr"> 46 </span> <a href='003trace.cc.html#L202'>raise</a> << <span class="Constant">"ELF type/machine 0x"</span> << <a href='010---vm.cc.html#L440'>HEXWORD</a> << e_machine_type << <span class="Constant">" isn't i386 executable\n"</span> << die<span class="Delimiter">();</span> <span id="L47" class="LineNr"> 47 </span> <span class="Comment">// unused: e_version. We only support version 1, and later versions will be backwards compatible.</span> -<span id="L48" class="LineNr"> 48 </span> <span class="Normal">uint32_t</span> <a href='035labels.cc.html#L39'>e_entry</a> = <a href='012elf.cc.html#L154'>u32_in</a><span class="Delimiter">(</span>&elf_contents[<span class="Constant">24</span>]<span class="Delimiter">);</span> +<span id="L48" class="LineNr"> 48 </span> <span class="Normal">uint32_t</span> <a href='035labels.cc.html#L44'>e_entry</a> = <a href='012elf.cc.html#L154'>u32_in</a><span class="Delimiter">(</span>&elf_contents[<span class="Constant">24</span>]<span class="Delimiter">);</span> <span id="L49" class="LineNr"> 49 </span> <span class="Normal">uint32_t</span> e_phoff = <a href='012elf.cc.html#L154'>u32_in</a><span class="Delimiter">(</span>&elf_contents[<span class="Constant">28</span>]<span class="Delimiter">);</span> <span id="L50" class="LineNr"> 50 </span> <span class="Comment">// unused: e_shoff</span> <span id="L51" class="LineNr"> 51 </span> <span class="Comment">// unused: e_flags</span> <span id="L52" class="LineNr"> 52 </span> <span class="Normal">uint32_t</span> e_ehsize = <a href='012elf.cc.html#L158'>u16_in</a><span class="Delimiter">(</span>&elf_contents[<span class="Constant">40</span>]<span class="Delimiter">);</span> -<span id="L53" class="LineNr"> 53 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>e_ehsize < <span class="Constant">52</span><span class="Delimiter">)</span> <a href='003trace.cc.html#L217'>raise</a> << <span class="Constant">"Invalid binary; ELF header too small\n"</span> << <a href='012elf.cc.html#L172'>die</a><span class="Delimiter">();</span> +<span id="L53" class="LineNr"> 53 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>e_ehsize < <span class="Constant">52</span><span class="Delimiter">)</span> <a href='003trace.cc.html#L202'>raise</a> << <span class="Constant">"Invalid binary; ELF header too small\n"</span> << <a href='012elf.cc.html#L172'>die</a><span class="Delimiter">();</span> <span id="L54" class="LineNr"> 54 </span> <span class="Normal">uint32_t</span> e_phentsize = <a href='012elf.cc.html#L158'>u16_in</a><span class="Delimiter">(</span>&elf_contents[<span class="Constant">42</span>]<span class="Delimiter">);</span> <span id="L55" class="LineNr"> 55 </span> <span class="Normal">uint32_t</span> e_phnum = <a href='012elf.cc.html#L158'>u16_in</a><span class="Delimiter">(</span>&elf_contents[<span class="Constant">44</span>]<span class="Delimiter">);</span> -<span id="L56" class="LineNr"> 56 </span> <a href='003trace.cc.html#L98'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"load"</span><span class="Delimiter">)</span> << e_phnum << <span class="Constant">" entries in the <a href='011run.cc.html#L95'>program</a> header, each "</span> << e_phentsize << <span class="Constant">" bytes long"</span> << end<span class="Delimiter">();</span> +<span id="L56" class="LineNr"> 56 </span> <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"load"</span><span class="Delimiter">)</span> << e_phnum << <span class="Constant">" entries in the <a href='011run.cc.html#L102'>program</a> header, each "</span> << e_phentsize << <span class="Constant">" bytes long"</span> << end<span class="Delimiter">();</span> <span id="L57" class="LineNr"> 57 </span> <span class="Comment">// unused: e_shentsize</span> <span id="L58" class="LineNr"> 58 </span> <span class="Comment">// unused: e_shnum</span> <span id="L59" class="LineNr"> 59 </span> <span class="Comment">// unused: e_shstrndx</span> @@ -128,7 +129,7 @@ if ('onhashchange' in window) { <span id="L68" class="LineNr"> 68 </span> assert<span class="Delimiter">(</span>overlap<span class="Delimiter">.</span>find<span class="Delimiter">(</span><a href='012elf.cc.html#L139'>AFTER_STACK</a><span class="Delimiter">)</span> == overlap<span class="Delimiter">.</span>end<span class="Delimiter">());</span> <span id="L69" class="LineNr"> 69 </span> <span class="Special"><a href='010---vm.cc.html#L28'>Reg</a></span>[ESP]<span class="Delimiter">.</span>u = <a href='012elf.cc.html#L139'>AFTER_STACK</a><span class="Delimiter">;</span> <span id="L70" class="LineNr"> 70 </span> <span class="Special"><a href='010---vm.cc.html#L28'>Reg</a></span>[EBP]<span class="Delimiter">.</span>u = <span class="Constant">0</span><span class="Delimiter">;</span> -<span id="L71" class="LineNr"> 71 </span> EIP = <a href='035labels.cc.html#L39'>e_entry</a><span class="Delimiter">;</span> +<span id="L71" class="LineNr"> 71 </span> EIP = <a href='035labels.cc.html#L44'>e_entry</a><span class="Delimiter">;</span> <span id="L72" class="LineNr"> 72 </span> <span id="L73" class="LineNr"> 73 </span> <span class="Comment">// initialize args on stack</span> <span id="L74" class="LineNr"> 74 </span> <span class="Comment">// no envp for now</span> @@ -149,34 +150,34 @@ if ('onhashchange' in window) { <span id="L89" class="LineNr"> 89 </span> <span id="L90" class="LineNr"> 90 </span><span class="Normal">void</span> <a href='012elf.cc.html#L90'>push</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> val<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L91" class="LineNr"> 91 </span> <span class="Special"><a href='010---vm.cc.html#L28'>Reg</a></span>[ESP]<span class="Delimiter">.</span>u -= <span class="Constant">4</span><span class="Delimiter">;</span> -<span id="L92" class="LineNr"> 92 </span> <a href='003trace.cc.html#L98'>trace</a><span class="Delimiter">(</span><span class="Special">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"decrementing <a href='010---vm.cc.html#L17'>ESP</a> to 0x"</span> << <a href='010---vm.cc.html#L433'>HEXWORD</a> << <span class="Special"><a href='010---vm.cc.html#L28'>Reg</a></span>[ESP]<span class="Delimiter">.</span>u << end<span class="Delimiter">();</span> -<span id="L93" class="LineNr"> 93 </span> <a href='003trace.cc.html#L98'>trace</a><span class="Delimiter">(</span><span class="Special">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"pushing value 0x"</span> << <a href='010---vm.cc.html#L433'>HEXWORD</a> << val << end<span class="Delimiter">();</span> +<span id="L92" class="LineNr"> 92 </span> <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="Special">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"decrementing <a href='010---vm.cc.html#L17'>ESP</a> to 0x"</span> << <a href='010---vm.cc.html#L440'>HEXWORD</a> << <span class="Special"><a href='010---vm.cc.html#L28'>Reg</a></span>[ESP]<span class="Delimiter">.</span>u << end<span class="Delimiter">();</span> +<span id="L93" class="LineNr"> 93 </span> <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="Special">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"pushing value 0x"</span> << <a href='010---vm.cc.html#L440'>HEXWORD</a> << val << end<span class="Delimiter">();</span> <span id="L94" class="LineNr"> 94 </span> <a href='010---vm.cc.html#L271'>write_mem_u32</a><span class="Delimiter">(</span><span class="Special"><a href='010---vm.cc.html#L28'>Reg</a></span>[ESP]<span class="Delimiter">.</span>u<span class="Delimiter">,</span> val<span class="Delimiter">);</span> <span id="L95" class="LineNr"> 95 </span><span class="Delimiter">}</span> <span id="L96" class="LineNr"> 96 </span> -<span id="L97" class="LineNr"> 97 </span><span class="Normal">void</span> <a href='012elf.cc.html#L97'>load_segment_from_program_header</a><span class="Delimiter">(</span><span class="Normal">uint8_t</span>* elf_contents<span class="Delimiter">,</span> <span class="Normal">int</span> segment_index<span class="Delimiter">,</span> <span class="Normal">size_t</span> size<span class="Delimiter">,</span> <span class="Normal">uint32_t</span> offset<span class="Delimiter">,</span> <span class="Normal">uint32_t</span> e_ehsize<span class="Delimiter">,</span> set<<span class="Normal">uint32_t</span>>& overlap<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L97" class="LineNr"> 97 </span><span class="Normal">void</span> <a href='012elf.cc.html#L97'>load_segment_from_program_header</a><span class="Delimiter">(</span><span class="Normal">uint8_t</span>* elf_contents<span class="Delimiter">,</span> <span class="Normal">int</span> segment_index<span class="Delimiter">,</span> <span class="Normal">size_t</span> size<span class="Delimiter">,</span> <span class="Normal">uint32_t</span> <a href='039debug.cc.html#L30'>offset</a><span class="Delimiter">,</span> <span class="Normal">uint32_t</span> e_ehsize<span class="Delimiter">,</span> set<<span class="Normal">uint32_t</span>>& overlap<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L98" class="LineNr"> 98 </span> <span class="Normal">uint32_t</span> p_type = <a href='012elf.cc.html#L154'>u32_in</a><span class="Delimiter">(</span>&elf_contents[offset]<span class="Delimiter">);</span> -<span id="L99" class="LineNr"> 99 </span> <a href='003trace.cc.html#L98'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"load"</span><span class="Delimiter">)</span> << <span class="Constant">"program header at offset "</span> << offset << <span class="Constant">": type "</span> << p_type << end<span class="Delimiter">();</span> +<span id="L99" class="LineNr"> 99 </span> <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"load"</span><span class="Delimiter">)</span> << <span class="Constant">"program header at <a href='039debug.cc.html#L30'>offset</a> "</span> << <a href='039debug.cc.html#L30'>offset</a> << <span class="Constant">": type "</span> << p_type << end<span class="Delimiter">();</span> <span id="L100" class="LineNr">100 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p_type != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L101" class="LineNr">101 </span> <a href='003trace.cc.html#L98'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"load"</span><span class="Delimiter">)</span> << <span class="Constant">"ignoring segment at offset "</span> << offset << <span class="Constant">" of non PT_LOAD type "</span> << p_type << <span class="Constant">" (see <a href="http://refspecs.linuxbase.org/elf/elf.pdf">http://refspecs.linuxbase.org/elf/elf.pdf</a>)"</span> << end<span class="Delimiter">();</span> +<span id="L101" class="LineNr">101 </span> <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"load"</span><span class="Delimiter">)</span> << <span class="Constant">"ignoring segment at <a href='039debug.cc.html#L30'>offset</a> "</span> << <a href='039debug.cc.html#L30'>offset</a> << <span class="Constant">" of non PT_LOAD type "</span> << p_type << <span class="Constant">" (see <a href="http://refspecs.linuxbase.org/elf/elf.pdf">http://refspecs.linuxbase.org/elf/elf.pdf</a>)"</span> << end<span class="Delimiter">();</span> <span id="L102" class="LineNr">102 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span id="L103" class="LineNr">103 </span> <span class="Delimiter">}</span> <span id="L104" class="LineNr">104 </span> <span class="Normal">uint32_t</span> p_offset = <a href='012elf.cc.html#L154'>u32_in</a><span class="Delimiter">(</span>&elf_contents[offset + <span class="Constant">4</span>]<span class="Delimiter">);</span> <span id="L105" class="LineNr">105 </span> <span class="Normal">uint32_t</span> p_vaddr = <a href='012elf.cc.html#L154'>u32_in</a><span class="Delimiter">(</span>&elf_contents[offset + <span class="Constant">8</span>]<span class="Delimiter">);</span> -<span id="L106" class="LineNr">106 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>e_ehsize > p_vaddr<span class="Delimiter">)</span> <a href='003trace.cc.html#L217'>raise</a> << <span class="Constant">"Invalid binary; <a href='011run.cc.html#L95'>program</a> header overlaps ELF header\n"</span> << <a href='012elf.cc.html#L172'>die</a><span class="Delimiter">();</span> +<span id="L106" class="LineNr">106 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>e_ehsize > p_vaddr<span class="Delimiter">)</span> <a href='003trace.cc.html#L202'>raise</a> << <span class="Constant">"Invalid binary; <a href='011run.cc.html#L102'>program</a> header overlaps ELF header\n"</span> << <a href='012elf.cc.html#L172'>die</a><span class="Delimiter">();</span> <span id="L107" class="LineNr">107 </span> <span class="Comment">// unused: p_paddr</span> <span id="L108" class="LineNr">108 </span> <span class="Normal">uint32_t</span> p_filesz = <a href='012elf.cc.html#L154'>u32_in</a><span class="Delimiter">(</span>&elf_contents[offset + <span class="Constant">16</span>]<span class="Delimiter">);</span> <span id="L109" class="LineNr">109 </span> <span class="Normal">uint32_t</span> p_memsz = <a href='012elf.cc.html#L154'>u32_in</a><span class="Delimiter">(</span>&elf_contents[offset + <span class="Constant">20</span>]<span class="Delimiter">);</span> <span id="L110" class="LineNr">110 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p_filesz != p_memsz<span class="Delimiter">)</span> -<span id="L111" class="LineNr">111 </span> <a href='003trace.cc.html#L217'>raise</a> << <span class="Constant">"Can't yet handle segments where p_filesz != p_memsz (see <a href="http://refspecs.linuxbase.org/elf/elf.pdf">http://refspecs.linuxbase.org/elf/elf.pdf</a>)\n"</span> << die<span class="Delimiter">();</span> +<span id="L111" class="LineNr">111 </span> <a href='003trace.cc.html#L202'>raise</a> << <span class="Constant">"Can't yet handle segments where p_filesz != p_memsz (see <a href="http://refspecs.linuxbase.org/elf/elf.pdf">http://refspecs.linuxbase.org/elf/elf.pdf</a>)\n"</span> << die<span class="Delimiter">();</span> <span id="L112" class="LineNr">112 </span> <span id="L113" class="LineNr">113 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p_offset + p_filesz > size<span class="Delimiter">)</span> -<span id="L114" class="LineNr">114 </span> <a href='003trace.cc.html#L217'>raise</a> << <span class="Constant">"Invalid binary; segment at offset "</span> << offset << <span class="Constant">" is too large: wants to end at "</span> << p_offset+p_filesz << <span class="Constant">" but the file ends at "</span> << size << <span class="cSpecial">'\n'</span> << <a href='012elf.cc.html#L172'>die</a><span class="Delimiter">();</span> +<span id="L114" class="LineNr">114 </span> <a href='003trace.cc.html#L202'>raise</a> << <span class="Constant">"Invalid binary; segment at <a href='039debug.cc.html#L30'>offset</a> "</span> << <a href='039debug.cc.html#L30'>offset</a> << <span class="Constant">" is too large: wants to end at "</span> << p_offset+p_filesz << <span class="Constant">" but the file ends at "</span> << size << <span class="cSpecial">'\n'</span> << <a href='012elf.cc.html#L172'>die</a><span class="Delimiter">();</span> <span id="L115" class="LineNr">115 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p_memsz >= <a href='010---vm.cc.html#L115'>SEGMENT_ALIGNMENT</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L116" class="LineNr">116 </span> <a href='003trace.cc.html#L217'>raise</a> << <span class="Constant">"Code segment too small for SubX; for now please manually increase SEGMENT_ALIGNMENT.\n"</span> << end<span class="Delimiter">();</span> +<span id="L116" class="LineNr">116 </span> <a href='003trace.cc.html#L202'>raise</a> << <span class="Constant">"Code segment too small for SubX; for now please manually increase SEGMENT_ALIGNMENT.\n"</span> << end<span class="Delimiter">();</span> <span id="L117" class="LineNr">117 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span id="L118" class="LineNr">118 </span> <span class="Delimiter">}</span> -<span id="L119" class="LineNr">119 </span> <a href='003trace.cc.html#L98'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"load"</span><span class="Delimiter">)</span> << <span class="Constant">"blitting file offsets ("</span> << p_offset << <span class="Constant">", "</span> << <span class="Delimiter">(</span>p_offset+p_filesz<span class="Delimiter">)</span> << <span class="Constant">") to addresses ("</span> << p_vaddr << <span class="Constant">", "</span> << <span class="Delimiter">(</span>p_vaddr+p_memsz<span class="Delimiter">)</span> << <span class="Constant">')'</span> << end<span class="Delimiter">();</span> +<span id="L119" class="LineNr">119 </span> <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"load"</span><span class="Delimiter">)</span> << <span class="Constant">"blitting file offsets ("</span> << p_offset << <span class="Constant">", "</span> << <span class="Delimiter">(</span>p_offset+p_filesz<span class="Delimiter">)</span> << <span class="Constant">") to addresses ("</span> << p_vaddr << <span class="Constant">", "</span> << <span class="Delimiter">(</span>p_vaddr+p_memsz<span class="Delimiter">)</span> << <span class="Constant">')'</span> << end<span class="Delimiter">();</span> <span id="L120" class="LineNr">120 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>size > p_memsz<span class="Delimiter">)</span> size = p_memsz<span class="Delimiter">;</span> <span id="L121" class="LineNr">121 </span> <span class="Special"><a href='010---vm.cc.html#L180'>Mem</a></span><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>vma<span class="Delimiter">(</span>p_vaddr<span class="Delimiter">));</span> <span id="L122" class="LineNr">122 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">size_t</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < p_filesz<span class="Delimiter">;</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> @@ -203,12 +204,12 @@ if ('onhashchange' in window) { <span id="L143" class="LineNr">143 </span><span class="Delimiter">:(code)</span> <span id="L144" class="LineNr">144 </span><span class="Normal">void</span> <a href='012elf.cc.html#L144'>dump_stack</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> <span id="L145" class="LineNr">145 </span> ostringstream out<span class="Delimiter">;</span> -<span id="L146" class="LineNr">146 </span> <a href='003trace.cc.html#L98'>trace</a><span class="Delimiter">(</span><span class="Special">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"stack:"</span> << end<span class="Delimiter">();</span> +<span id="L146" class="LineNr">146 </span> <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="Special">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"stack:"</span> << end<span class="Delimiter">();</span> <span id="L147" class="LineNr">147 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">uint32_t</span> a = AFTER_STACK-<span class="Constant">4</span><span class="Delimiter">;</span> a > <span class="Special"><a href='010---vm.cc.html#L28'>Reg</a></span>[ESP]<span class="Delimiter">.</span>u<span class="Delimiter">;</span> a -= <span class="Constant">4</span><span class="Delimiter">)</span> -<span id="L148" class="LineNr">148 </span> <a href='003trace.cc.html#L98'>trace</a><span class="Delimiter">(</span><span class="Special">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">" 0x"</span> << <a href='010---vm.cc.html#L433'>HEXWORD</a> << a << <span class="Constant">" => 0x"</span> << <a href='010---vm.cc.html#L433'>HEXWORD</a> << <a href='010---vm.cc.html#L209'>read_mem_u32</a><span class="Delimiter">(</span>a<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> -<span id="L149" class="LineNr">149 </span> <a href='003trace.cc.html#L98'>trace</a><span class="Delimiter">(</span><span class="Special">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">" 0x"</span> << <a href='010---vm.cc.html#L433'>HEXWORD</a> << <span class="Special"><a href='010---vm.cc.html#L28'>Reg</a></span>[ESP]<span class="Delimiter">.</span>u << <span class="Constant">" => 0x"</span> << <a href='010---vm.cc.html#L433'>HEXWORD</a> << <a href='010---vm.cc.html#L209'>read_mem_u32</a><span class="Delimiter">(</span><span class="Special"><a href='010---vm.cc.html#L28'>Reg</a></span>[ESP]<span class="Delimiter">.</span>u<span class="Delimiter">)</span> << <span class="Constant">" <=== ESP"</span> << end<span class="Delimiter">();</span> +<span id="L148" class="LineNr">148 </span> <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="Special">Callstack_depth</span>+<span class="Constant">2</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">" 0x"</span> << <a href='010---vm.cc.html#L440'>HEXWORD</a> << a << <span class="Constant">" => 0x"</span> << <a href='010---vm.cc.html#L440'>HEXWORD</a> << <a href='010---vm.cc.html#L209'>read_mem_u32</a><span class="Delimiter">(</span>a<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> +<span id="L149" class="LineNr">149 </span> <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="Special">Callstack_depth</span>+<span class="Constant">2</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">" 0x"</span> << <a href='010---vm.cc.html#L440'>HEXWORD</a> << <span class="Special"><a href='010---vm.cc.html#L28'>Reg</a></span>[ESP]<span class="Delimiter">.</span>u << <span class="Constant">" => 0x"</span> << <a href='010---vm.cc.html#L440'>HEXWORD</a> << <a href='010---vm.cc.html#L209'>read_mem_u32</a><span class="Delimiter">(</span><span class="Special"><a href='010---vm.cc.html#L28'>Reg</a></span>[ESP]<span class="Delimiter">.</span>u<span class="Delimiter">)</span> << <span class="Constant">" <=== ESP"</span> << end<span class="Delimiter">();</span> <span id="L150" class="LineNr">150 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">uint32_t</span> a = <span class="Special"><a href='010---vm.cc.html#L28'>Reg</a></span>[ESP]<span class="Delimiter">.</span>u-<span class="Constant">4</span><span class="Delimiter">;</span> a > <span class="Special"><a href='010---vm.cc.html#L28'>Reg</a></span>[ESP]<span class="Delimiter">.</span>u-<span class="Constant">40</span><span class="Delimiter">;</span> a -= <span class="Constant">4</span><span class="Delimiter">)</span> -<span id="L151" class="LineNr">151 </span> <a href='003trace.cc.html#L98'>trace</a><span class="Delimiter">(</span><span class="Special">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">" 0x"</span> << <a href='010---vm.cc.html#L433'>HEXWORD</a> << a << <span class="Constant">" => 0x"</span> << <a href='010---vm.cc.html#L433'>HEXWORD</a> << <a href='010---vm.cc.html#L209'>read_mem_u32</a><span class="Delimiter">(</span>a<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> +<span id="L151" class="LineNr">151 </span> <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="Special">Callstack_depth</span>+<span class="Constant">2</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">" 0x"</span> << <a href='010---vm.cc.html#L440'>HEXWORD</a> << a << <span class="Constant">" => 0x"</span> << <a href='010---vm.cc.html#L440'>HEXWORD</a> << <a href='010---vm.cc.html#L209'>read_mem_u32</a><span class="Delimiter">(</span>a<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> <span id="L152" class="LineNr">152 </span><span class="Delimiter">}</span> <span id="L153" class="LineNr">153 </span> <span id="L154" class="LineNr">154 </span><span class="Normal">inline</span> <span class="Normal">uint32_t</span> <a href='012elf.cc.html#L154'>u32_in</a><span class="Delimiter">(</span><span class="Normal">uint8_t</span>* p<span class="Delimiter">)</span> <span class="Delimiter">{</span> @@ -232,17 +233,17 @@ if ('onhashchange' in window) { <span id="L172" class="LineNr">172 </span><span class="Normal">struct</span> <a href='012elf.cc.html#L172'>die</a> <span class="Delimiter">{};</span> <span id="L173" class="LineNr">173 </span><span class="Delimiter">:(code)</span> <span id="L174" class="LineNr">174 </span>ostream& <span class="Normal">operator</span><<<span class="Delimiter">(</span>ostream& <span class="Comment">/*</span><span class="Comment">unused</span><span class="Comment">*/</span><span class="Delimiter">,</span> <a href='012elf.cc.html#L172'>die</a> <span class="Comment">/*</span><span class="Comment">unused</span><span class="Comment">*/</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L175" class="LineNr">175 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special"><a href='003trace.cc.html#L74'>Trace_stream</a></span><span class="Delimiter">)</span> <span class="Special"><a href='003trace.cc.html#L74'>Trace_stream</a></span><span class="Delimiter">-></span><a href='003trace.cc.html#L173'>newline</a><span class="Delimiter">();</span> +<span id="L175" class="LineNr">175 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special"><a href='003trace.cc.html#L72'>Trace_stream</a></span><span class="Delimiter">)</span> <span class="Special"><a href='003trace.cc.html#L72'>Trace_stream</a></span><span class="Delimiter">-></span><a href='003trace.cc.html#L159'>newline</a><span class="Delimiter">();</span> <span id="L176" class="LineNr">176 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> <span id="L177" class="LineNr">177 </span><span class="Delimiter">}</span> <span id="L178" class="LineNr">178 </span> <span id="L179" class="LineNr">179 </span><span class="Delimiter">:(before "End Includes")</span> -<span id="L180" class="LineNr">180 </span><span class="Comment">#include <sys/types.h></span> -<span id="L181" class="LineNr">181 </span><span class="Comment">#include <sys/stat.h></span> -<span id="L182" class="LineNr">182 </span><span class="Comment">#include <fcntl.h></span> -<span id="L183" class="LineNr">183 </span><span class="Comment">#include <stdarg.h></span> -<span id="L184" class="LineNr">184 </span><span class="Comment">#include <errno.h></span> -<span id="L185" class="LineNr">185 </span><span class="Comment">#include <unistd.h></span> +<span id="L180" class="LineNr">180 </span><span class="PreProc">#include </span><span class="Constant"><sys/types.h></span> +<span id="L181" class="LineNr">181 </span><span class="PreProc">#include </span><span class="Constant"><sys/stat.h></span> +<span id="L182" class="LineNr">182 </span><span class="PreProc">#include </span><span class="Constant"><fcntl.h></span> +<span id="L183" class="LineNr">183 </span><span class="PreProc">#include </span><span class="Constant"><stdarg.h></span> +<span id="L184" class="LineNr">184 </span><span class="PreProc">#include </span><span class="Constant"><errno.h></span> +<span id="L185" class="LineNr">185 </span><span class="PreProc">#include </span><span class="Constant"><unistd.h></span> </pre> </body> </html> |