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<h3>
Raymond Toy pushed to branch issue-97-define-ud2-inst
at <a href="https://gitlab.common-lisp.net/cmucl/cmucl">cmucl / cmucl</a>
</h3>
<h4>
Commits:
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<li>
<strong><a href="https://gitlab.common-lisp.net/cmucl/cmucl/-/commit/8817798f004ea8e745201c5a326de9ec65a3e850">8817798f</a></strong>
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<span>by Raymond Toy</span>
<i>at 2021-03-22T19:57:09-07:00</i>
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<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Add sigtrap handler to handle single-stepping traps
Needed to handle single-stepping. There's also a lot of other changes
used to debug this. They eventually need to be cleaned up.
</pre>
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<h4>1 changed file:</h4>
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<a href="#83e1227b8996eac149e86a66562471511fe93ca7">
src/lisp/x86-arch.c
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<h4>Changes:</h4>
<li id="83e1227b8996eac149e86a66562471511fe93ca7">
<a href="https://gitlab.common-lisp.net/cmucl/cmucl/-/commit/8817798f004ea8e745201c5a326de9ec65a3e850#83e1227b8996eac149e86a66562471511fe93ca7"><strong>src/lisp/x86-arch.c</strong></a>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -142,7 +142,7 @@ arch_skip_instruction(os_context_t * context)</td>
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<pre style="margin: 0;"> <span id="LC142" class="line" lang="c"><span class="p">{</span></span>
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<pre style="margin: 0;"> <span id="LC143" class="line" lang="c"> <span class="kt" style="color: #458; font-weight: 600;">int</span> <span class="n" style="color: #333;">vlen</span><span class="p">,</span> <span class="n" style="color: #333;">code</span><span class="p">;</span></span>
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<pre style="margin: 0;"> <span id="LC144" class="line" lang="c"></span>
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<pre style="margin: 0;">-<span id="LC145" class="line" lang="c"> <span class="n" style="color: #333;">DPRINTF</span><span class="p">(</span><span class="mi" style="color: #099;"><span class="idiff left right">0</span></span><span class="p">,</span> <span class="p">(</span><span class="n" style="color: #333;">stderr</span><span class="p">,</span> <span class="s" style="color: #d14;">"[arch_skip_inst at %lx>]</span><span class="se" style="color: #d14;">\n</span><span class="s" style="color: #d14;">"</span><span class="p">,</span> <span class="n" style="color: #333;">SC_PC</span><span class="p">(</span><span class="n" style="color: #333;">context</span><span class="p">)));</span></span>
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<pre style="margin: 0;">+<span id="LC145" class="line" lang="c"> <span class="n" style="color: #333;">DPRINTF</span><span class="p">(</span><span class="mi" style="color: #099;"><span class="idiff left right">1</span></span><span class="p">,</span> <span class="p">(</span><span class="n" style="color: #333;">stderr</span><span class="p">,</span> <span class="s" style="color: #d14;">"[arch_skip_inst at %lx>]</span><span class="se" style="color: #d14;">\n</span><span class="s" style="color: #d14;">"</span><span class="p">,</span> <span class="n" style="color: #333;">SC_PC</span><span class="p">(</span><span class="n" style="color: #333;">context</span><span class="p">)));</span></span>
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<pre style="margin: 0;"> <span id="LC146" class="line" lang="c"></span>
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<pre style="margin: 0;"> <span id="LC147" class="line" lang="c"> <span class="cm" style="color: #998; font-style: italic;">/* Get and skip the lisp error code. */</span></span>
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<pre style="margin: 0;"> <span id="LC148" class="line" lang="c"> <span class="kt" style="color: #458; font-weight: 600;">char</span><span class="o" style="font-weight: 600;">*</span> <span class="n" style="color: #333;">pc</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">char</span> <span class="o" style="font-weight: 600;">*</span><span class="p">)</span> <span class="n" style="color: #333;">SC_PC</span><span class="p">(</span><span class="n" style="color: #333;">context</span><span class="p">);</span></span>
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<td class="diff-line-num unfold js-unfold new_line" data-linenumber="206" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -206,8 +206,8 @@ arch_set_pseudo_atomic_interrupted(os_context_t * context)</td>
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<pre style="margin: 0;"> <span id="LC206" class="line" lang="c"><span class="kt" style="color: #458; font-weight: 600;">unsigned</span> <span class="kt" style="color: #458; font-weight: 600;">long</span></span>
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<pre style="margin: 0;"> <span id="LC207" class="line" lang="c"><span class="nf" style="color: #900; font-weight: 600;">arch_install_breakpoint</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">void</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">pc</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC208" class="line" lang="c"><span class="p">{</span></span>
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<pre style="margin: 0;">-<span id="LC209" class="line" lang="c"> <span class="kt" style="color: #458; font-weight: 600;">char</span><span class="o" style="font-weight: 600;">*</span> <span class="n" style="color: #333;">ptr</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">char</span> <span class="o" style="font-weight: 600;">*</span><span class="p">)</span> <span class="n" style="color: #333;">pc</span><span class="p">;</span></span>
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<pre style="margin: 0;">-<span id="LC210" class="line" lang="c"> <span class="kt" style="color: #458; font-weight: 600;">unsigned</span> <span class="kt" style="color: #458; font-weight: 600;">long</span> <span class="n" style="color: #333;">result</span> <span class="o" style="font-weight: 600;">=</span> <span class="o" style="font-weight: 600;"><span class="idiff left">*</span></span><span class="p"><span class="idiff">(</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">unsigned</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">long</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">*</span></span><span class="p"><span class="idiff">)</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">pc</span></span><span class="p">;</span></span>
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<pre style="margin: 0;">+<span id="LC209" class="line" lang="c"> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">unsigned</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;">char</span><span class="o" style="font-weight: 600;">*</span> <span class="n" style="color: #333;">ptr</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">unsigned</span></span><span class="idiff right"> </span><span class="kt" style="color: #458; font-weight: 600;">char</span> <span class="o" style="font-weight: 600;">*</span><span class="p">)</span> <span class="n" style="color: #333;">pc</span><span class="p">;</span></span>
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<pre style="margin: 0;">+<span id="LC210" class="line" lang="c"> <span class="kt" style="color: #458; font-weight: 600;">unsigned</span> <span class="kt" style="color: #458; font-weight: 600;">long</span> <span class="n" style="color: #333;">result</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;"><span class="idiff left">ptr</span></span><span class="p"><span class="idiff">[</span></span><span class="mi" style="color: #099;"><span class="idiff">0</span></span><span class="p"><span class="idiff">]</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">|</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">ptr</span></span><span class="p"><span class="idiff">[</span></span><span class="mi" style="color: #099;"><span class="idiff">1</span></span><span class="p"><span class="idiff">]</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff"><<</span></span><span class="idiff"> </span><span class="mi" style="color: #099;"><span class="idiff">8</span></span><span class="p"><span class="idiff">)</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">|</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">ptr</span></span><span class="p"><span class="idiff">[</span></span><span class="mi" style="color: #099;"><span class="idiff">2</span></span><span class="p"><span class="idiff">]</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff"><<</span></span><span class="idiff"> </span><span class="mi" style="color: #099;"><span class="idiff">16</span></span><span class="p"><span class="idiff">)</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">|</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">ptr</span></span><span class="p"><span class="idiff">[</span></span><span class="mi" style="color: #099;"><span class="idiff">3</span></span><span class="p"><span class="idiff">]</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff"><<</span></span><span class="idiff"> </span><span class="mi" style="color: #099;"><span class="idiff">24</span></span><span class="p"><span class="idiff right">)</span>;</span></span>
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<pre style="margin: 0;"> <span id="LC211" class="line" lang="c"></span>
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<pre style="margin: 0;"> <span id="LC212" class="line" lang="c"> <span class="n" style="color: #333;">fprintf</span><span class="p">(</span><span class="n" style="color: #333;">stderr</span><span class="p">,</span> <span class="s" style="color: #d14;">"arch_install_breakpoint at %p, old code = 0x%lx</span><span class="se" style="color: #d14;">\n</span><span class="s" style="color: #d14;">"</span><span class="p">,</span></span>
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<pre style="margin: 0;"> <span id="LC213" class="line" lang="c"> <span class="n" style="color: #333;">pc</span><span class="p">,</span> <span class="n" style="color: #333;">result</span><span class="p">);</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -227,8 +227,13 @@ arch_install_breakpoint(void *pc)</td>
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<pre style="margin: 0;"> <span id="LC227" class="line" lang="c"><span class="kt" style="color: #458; font-weight: 600;">void</span></span>
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<pre style="margin: 0;"> <span id="LC228" class="line" lang="c"><span class="nf" style="color: #900; font-weight: 600;">arch_remove_breakpoint</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">void</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">pc</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">unsigned</span> <span class="kt" style="color: #458; font-weight: 600;">long</span> <span class="n" style="color: #333;">orig_inst</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC229" class="line" lang="c"><span class="p">{</span></span>
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<pre style="margin: 0;">-<span id="LC230" class="line" lang="c"> <span class="o" style="font-weight: 600;">*</span><span class="p">((</span><span class="kt" style="color: #458; font-weight: 600;">char</span> <span class="o" style="font-weight: 600;">*</span><span class="p">)</span> <span class="n" style="color: #333;">pc</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">orig_inst</span> <span class="o" style="font-weight: 600;">&</span> <span class="mh" style="color: #099;">0xff</span><span class="p">;</span></span>
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<pre style="margin: 0;">-<span id="LC231" class="line" lang="c"> <span class="o" style="font-weight: 600;">*</span><span class="p">((</span><span class="kt" style="color: #458; font-weight: 600;">char</span> <span class="o" style="font-weight: 600;">*</span><span class="p">)</span> <span class="n" style="color: #333;">pc</span> <span class="o" style="font-weight: 600;">+</span> <span class="mi" style="color: #099;">1</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="n" style="color: #333;">orig_inst</span> <span class="o" style="font-weight: 600;">&</span> <span class="mh" style="color: #099;">0xff00</span><span class="p">)</span> <span class="o" style="font-weight: 600;">>></span> <span class="mi" style="color: #099;">8</span><span class="p">;</span></span>
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<pre style="margin: 0;">+<span id="LC230" class="line" lang="c"> <span class="n" style="color: #333;">fprintf</span><span class="p">(</span><span class="n" style="color: #333;">stderr</span><span class="p">,</span> <span class="s" style="color: #d14;">"arch_remove_breakpoint: %p orig %lx</span><span class="se" style="color: #d14;">\n</span><span class="s" style="color: #d14;">"</span><span class="p">,</span></span>
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<pre style="margin: 0;">+<span id="LC231" class="line" lang="c"> <span class="n" style="color: #333;">pc</span><span class="p">,</span> <span class="n" style="color: #333;">orig_inst</span><span class="p">);</span></span>
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<pre style="margin: 0;">+<span id="LC232" class="line" lang="c"> <span class="kt" style="color: #458; font-weight: 600;">unsigned</span> <span class="kt" style="color: #458; font-weight: 600;">char</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">ptr</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">unsigned</span> <span class="kt" style="color: #458; font-weight: 600;">char</span> <span class="o" style="font-weight: 600;">*</span><span class="p">)</span> <span class="n" style="color: #333;">pc</span><span class="p">;</span></span>
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<pre style="margin: 0;">+<span id="LC233" class="line" lang="c"> <span class="n" style="color: #333;">ptr</span><span class="p">[</span><span class="mi" style="color: #099;">0</span><span class="p">]</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">orig_inst</span> <span class="o" style="font-weight: 600;">&</span> <span class="mh" style="color: #099;">0xff</span><span class="p">;</span></span>
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<pre style="margin: 0;">+<span id="LC234" class="line" lang="c"> <span class="n" style="color: #333;">ptr</span><span class="p">[</span><span class="mi" style="color: #099;">1</span><span class="p">]</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="n" style="color: #333;">orig_inst</span> <span class="o" style="font-weight: 600;">>></span> <span class="mi" style="color: #099;">8</span><span class="p">)</span> <span class="o" style="font-weight: 600;">&</span> <span class="mh" style="color: #099;">0xff</span><span class="p">;</span></span>
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<pre style="margin: 0;">+<span id="LC235" class="line" lang="c"> <span class="n" style="color: #333;">ptr</span><span class="p">[</span><span class="mi" style="color: #099;">2</span><span class="p">]</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="n" style="color: #333;">orig_inst</span> <span class="o" style="font-weight: 600;">>></span> <span class="mi" style="color: #099;">16</span><span class="p">)</span> <span class="o" style="font-weight: 600;">&</span> <span class="mh" style="color: #099;">0xff</span><span class="p">;</span></span>
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<pre style="margin: 0;">+<span id="LC236" class="line" lang="c"> <span class="n" style="color: #333;">ptr</span><span class="p">[</span><span class="mi" style="color: #099;">3</span><span class="p">]</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="n" style="color: #333;">orig_inst</span> <span class="o" style="font-weight: 600;">>></span> <span class="mi" style="color: #099;">24</span><span class="p">)</span> <span class="o" style="font-weight: 600;">&</span> <span class="mh" style="color: #099;">0xff</span><span class="p">;</span></span>
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<pre style="margin: 0;"> <span id="LC237" class="line" lang="c"><span class="p">}</span></span>
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<pre style="margin: 0;"> <span id="LC238" class="line" lang="c"><span class="err" style="color: #a61717; background-color: #e3d2d2;"></span></span>
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<pre style="margin: 0;"> <span id="LC239" class="line" lang="c"></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="249" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -249,14 +254,23 @@ unsigned int single_step_save3;</td>
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<pre style="margin: 0;"> <span id="LC254" class="line" lang="c"><span class="kt" style="color: #458; font-weight: 600;">void</span></span>
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<pre style="margin: 0;"> <span id="LC255" class="line" lang="c"><span class="nf" style="color: #900; font-weight: 600;">arch_do_displaced_inst</span><span class="p">(</span><span class="n" style="color: #333;">os_context_t</span> <span class="o" style="font-weight: 600;">*</span> <span class="n" style="color: #333;">context</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">unsigned</span> <span class="kt" style="color: #458; font-weight: 600;">long</span> <span class="n" style="color: #333;">orig_inst</span><span class="p">)</span></span>
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256
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<pre style="margin: 0;"> <span id="LC256" class="line" lang="c"><span class="p">{</span></span>
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252
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<pre style="margin: 0;">-<span id="LC252" class="line" lang="c"> <span class="kt" style="color: #458; font-weight: 600;">unsigned</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">int</span></span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">pc</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">unsigned</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">int</span></span> <span class="o" style="font-weight: 600;">*</span><span class="p">)</span> <span class="n" style="color: #333;">SC_PC</span><span class="p">(</span><span class="n" style="color: #333;">context</span><span class="p">);</span></span>
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257
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<pre style="margin: 0;">+<span id="LC257" class="line" lang="c"> <span class="kt" style="color: #458; font-weight: 600;">unsigned</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">char</span></span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">pc</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">unsigned</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">char</span></span> <span class="o" style="font-weight: 600;">*</span><span class="p">)</span> <span class="n" style="color: #333;">SC_PC</span><span class="p">(</span><span class="n" style="color: #333;">context</span><span class="p">);</span></span>
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253
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258
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<pre style="margin: 0;"> <span id="LC258" class="line" lang="c"></span>
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259
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<pre style="margin: 0;">+<span id="LC259" class="line" lang="c"> <span class="n" style="color: #333;">fprintf</span><span class="p">(</span><span class="n" style="color: #333;">stderr</span><span class="p">,</span> <span class="s" style="color: #d14;">"arch_do_displaced_inst: pc %p orig_inst %lx</span><span class="se" style="color: #d14;">\n</span><span class="s" style="color: #d14;">"</span><span class="p">,</span></span>
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260
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<pre style="margin: 0;">+<span id="LC260" class="line" lang="c"> <span class="n" style="color: #333;">pc</span><span class="p">,</span> <span class="n" style="color: #333;">orig_inst</span><span class="p">);</span></span>
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261
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<pre style="margin: 0;">+<span id="LC261" class="line" lang="c"> </span>
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262
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<pre style="margin: 0;"> <span id="LC262" class="line" lang="c"> <span class="cm" style="color: #998; font-style: italic;">/*</span></span>
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263
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<pre style="margin: 0;"> <span id="LC263" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * Put the original instruction back.</span></span>
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<pre style="margin: 0;"> <span id="LC264" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> */</span></span>
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<pre style="margin: 0;"> <span id="LC265" class="line" lang="c"></span>
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<pre style="margin: 0;">+<span id="LC266" class="line" lang="c"><span class="c" style="color: #998; font-style: italic;">#if 0</span></span>
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<pre style="margin: 0;"> <span id="LC267" class="line" lang="c"><span class="c" style="color: #998; font-style: italic;"> *((char *) pc) = orig_inst & 0xff;</span></span>
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259
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268
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<pre style="margin: 0;"> <span id="LC268" class="line" lang="c"><span class="c" style="color: #998; font-style: italic;"> *((char *) pc + 1) = (orig_inst & 0xff00) >> 8;</span></span>
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269
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<pre style="margin: 0;">+<span id="LC269" class="line" lang="c"><span class="c" style="color: #998; font-style: italic;">#else</span></span>
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270
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<pre style="margin: 0;">+<span id="LC270" class="line" lang="c"> <span class="n" style="color: #333;">pc</span><span class="p">[</span><span class="mi" style="color: #099;">0</span><span class="p">]</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">orig_inst</span> <span class="o" style="font-weight: 600;">&</span> <span class="mh" style="color: #099;">0xff</span><span class="p">;</span></span>
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271
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<pre style="margin: 0;">+<span id="LC271" class="line" lang="c"> <span class="n" style="color: #333;">pc</span><span class="p">[</span><span class="mi" style="color: #099;">1</span><span class="p">]</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="n" style="color: #333;">orig_inst</span> <span class="o" style="font-weight: 600;">>></span> <span class="mi" style="color: #099;">8</span><span class="p">)</span> <span class="o" style="font-weight: 600;">&</span> <span class="mh" style="color: #099;">0xff</span><span class="p">;</span></span>
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272
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<pre style="margin: 0;">+<span id="LC272" class="line" lang="c"> <span class="n" style="color: #333;">pc</span><span class="p">[</span><span class="mi" style="color: #099;">2</span><span class="p">]</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="n" style="color: #333;">orig_inst</span> <span class="o" style="font-weight: 600;">>></span> <span class="mi" style="color: #099;">16</span><span class="p">)</span> <span class="o" style="font-weight: 600;">&</span> <span class="mh" style="color: #099;">0xff</span><span class="p">;</span></span>
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273
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<pre style="margin: 0;">+<span id="LC273" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#endif</span></span>
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274
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<pre style="margin: 0;"> <span id="LC274" class="line" lang="c"></span>
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275
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<pre style="margin: 0;"> <span id="LC275" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#ifdef SC_EFLAGS</span></span>
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262
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276
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<pre style="margin: 0;"> <span id="LC276" class="line" lang="c"> <span class="cm" style="color: #998; font-style: italic;">/* Enable single-stepping */</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="319" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="333" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -319,8 +333,8 @@ sigill_handler(HANDLER_ARGS)</td>
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319
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333
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<pre style="margin: 0;"> <span id="LC333" class="line" lang="c"> <span class="n" style="color: #333;">fprintf</span><span class="p">(</span><span class="n" style="color: #333;">stderr</span><span class="p">,</span> <span class="s" style="color: #d14;">"sigtrap(%d %d %p)</span><span class="se" style="color: #d14;">\n</span><span class="s" style="color: #d14;">"</span><span class="p">,</span> <span class="n" style="color: #333;">signal</span><span class="p">,</span> <span class="n" style="color: #333;">CODE</span><span class="p">(</span><span class="n" style="color: #333;">code</span><span class="p">),</span> <span class="n" style="color: #333;">os_context</span><span class="p">);</span></span>
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320
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334
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<pre style="margin: 0;"> <span id="LC334" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#endif</span></span>
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321
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335
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<pre style="margin: 0;"> <span id="LC335" class="line" lang="c"></span>
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322
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<pre style="margin: 0;">-<span id="LC322" class="line" lang="c"> <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="n" style="color: #333;">single_stepping</span> <span class="o" style="font-weight: 600;">&&</span> <span class="p">(</span><span class="n" style="color: #333;">signal</span> <span class="o" style="font-weight: 600;">==</span> <span class="n" style="color: #333;">SIG<span class="idiff left right">TRAP</span></span><span class="p">))</span> <span class="p">{</span></span>
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323
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<pre style="margin: 0;">-<span id="LC323" class="line" lang="c"><span class="c" style="color: #998; font-style: italic;">#if <span class="idiff left right">0</span></span></span>
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336
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<pre style="margin: 0;">+<span id="LC336" class="line" lang="c"> <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="n" style="color: #333;">single_stepping</span> <span class="o" style="font-weight: 600;">&&</span> <span class="p">(</span><span class="n" style="color: #333;">signal</span> <span class="o" style="font-weight: 600;">==</span> <span class="n" style="color: #333;">SIG<span class="idiff left right">ILL</span></span><span class="p">))</span> <span class="p">{</span></span>
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337
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<pre style="margin: 0;">+<span id="LC337" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#if <span class="idiff left right">1</span></span></span>
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324
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338
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<pre style="margin: 0;"> <span id="LC338" class="line" lang="c"> <span class="n" style="color: #333;">fprintf</span><span class="p">(</span><span class="n" style="color: #333;">stderr</span><span class="p">,</span> <span class="s" style="color: #d14;">"* Single step trap %p</span><span class="se" style="color: #d14;">\n</span><span class="s" style="color: #d14;">"</span><span class="p">,</span> <span class="n" style="color: #333;">single_stepping</span><span class="p">);</span></span>
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325
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339
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<pre style="margin: 0;"> <span id="LC339" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#endif</span></span>
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340
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<pre style="margin: 0;"> <span id="LC340" class="line" lang="c"></span>
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<td class="diff-line-num unfold js-unfold new_line" data-linenumber="352" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -338,7 +352,9 @@ sigill_handler(HANDLER_ARGS)</td>
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338
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352
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<pre style="margin: 0;"> <span id="LC352" class="line" lang="c"> <span class="cm" style="color: #998; font-style: italic;">/*</span></span>
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339
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353
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<pre style="margin: 0;"> <span id="LC353" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * Re-install the breakpoint if possible.</span></span>
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<pre style="margin: 0;"> <span id="LC354" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> */</span></span>
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341
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<pre style="margin: 0;">-<span id="LC341" class="line" lang="c"> <span class="k" style="font-weight: 600;">if</span> <span class="p">((</span><span class="kt" style="color: #458; font-weight: 600;">int</span><span class="p">)</span> <span class="n" style="color: #333;">SC_PC</span><span class="p">(</span><span class="n" style="color: #333;">os_context</span><span class="p">)</span> <span class="o" style="font-weight: 600;">==</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">int</span><span class="p">)</span> <span class="n" style="color: #333;">single_stepping</span> <span class="o" style="font-weight: 600;">+</span> <span class="mi" style="color: #099;">1</span><span class="p">)</span></span>
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355
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<pre style="margin: 0;">+<span id="LC355" class="line" lang="c"> <span class="n" style="color: #333;">fprintf</span><span class="p">(</span><span class="n" style="color: #333;">stderr</span><span class="p">,</span> <span class="s" style="color: #d14;">"* Reinstall breakpoint at single_stepping %p</span><span class="se" style="color: #d14;">\n</span><span class="s" style="color: #d14;">"</span><span class="p">,</span> <span class="n" style="color: #333;">single_stepping</span><span class="p">);</span></span>
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356
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<pre style="margin: 0;">+<span id="LC356" class="line" lang="c"> </span>
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357
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<pre style="margin: 0;">+<span id="LC357" class="line" lang="c"> <span class="k" style="font-weight: 600;">if</span> <span class="p">((</span><span class="kt" style="color: #458; font-weight: 600;">int</span><span class="p">)</span> <span class="n" style="color: #333;">SC_PC</span><span class="p">(</span><span class="n" style="color: #333;">os_context</span><span class="p">)</span> <span class="o" style="font-weight: 600;">>=</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">int</span><span class="p">)</span> <span class="n" style="color: #333;">single_stepping</span> <span class="o" style="font-weight: 600;">+</span> <span class="mi" style="color: #099;">3</span><span class="p">)</span></span>
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342
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358
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<pre style="margin: 0;"> <span id="LC358" class="line" lang="c"> <span class="n" style="color: #333;">fprintf</span><span class="p">(</span><span class="n" style="color: #333;">stderr</span><span class="p">,</span> <span class="s" style="color: #d14;">"* Breakpoint not re-install</span><span class="se" style="color: #d14;">\n</span><span class="s" style="color: #d14;">"</span><span class="p">);</span></span>
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<pre style="margin: 0;"> <span id="LC359" class="line" lang="c"> <span class="k" style="font-weight: 600;">else</span> <span class="p">{</span></span>
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<pre style="margin: 0;"> <span id="LC360" class="line" lang="c"> <span class="kt" style="color: #458; font-weight: 600;">char</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">ptr</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">char</span> <span class="o" style="font-weight: 600;">*</span><span class="p">)</span> <span class="n" style="color: #333;">single_stepping</span><span class="p">;</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -460,10 +476,70 @@ sigill_handler(HANDLER_ARGS)</td>
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<pre style="margin: 0;"> <span id="LC476" class="line" lang="c"> <span class="p">}</span></span>
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<pre style="margin: 0;"> <span id="LC477" class="line" lang="c"><span class="p">}</span></span>
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478
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<pre style="margin: 0;"> <span id="LC478" class="line" lang="c"></span>
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<pre style="margin: 0;">+<span id="LC479" class="line" lang="c"><span class="kt" style="color: #458; font-weight: 600;">void</span></span>
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<pre style="margin: 0;">+<span id="LC480" class="line" lang="c"><span class="nf" style="color: #900; font-weight: 600;">sigtrap_handler</span><span class="p">(</span><span class="n" style="color: #333;">HANDLER_ARGS</span><span class="p">)</span> </span>
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<pre style="margin: 0;">+<span id="LC481" class="line" lang="c"><span class="p">{</span></span>
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482
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<pre style="margin: 0;">+<span id="LC482" class="line" lang="c"> <span class="n" style="color: #333;">os_context_t</span><span class="o" style="font-weight: 600;">*</span> <span class="n" style="color: #333;">os_context</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="n" style="color: #333;">os_context_t</span> <span class="o" style="font-weight: 600;">*</span><span class="p">)</span> <span class="n" style="color: #333;">context</span><span class="p">;</span></span>
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<pre style="margin: 0;">+<span id="LC483" class="line" lang="c"></span>
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484
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<pre style="margin: 0;">+<span id="LC484" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#if 1</span></span>
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485
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<pre style="margin: 0;">+<span id="LC485" class="line" lang="c"> <span class="n" style="color: #333;">fprintf</span><span class="p">(</span><span class="n" style="color: #333;">stderr</span><span class="p">,</span><span class="s" style="color: #d14;">"sigtrap: fp=%lx sp=%lx pc=%lx { %x, %x, %x, %x, %x }</span><span class="se" style="color: #d14;">\n</span><span class="s" style="color: #d14;">"</span><span class="p">,</span></span>
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486
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<pre style="margin: 0;">+<span id="LC486" class="line" lang="c"> <span class="n" style="color: #333;">SC_REG</span><span class="p">(</span><span class="n" style="color: #333;">context</span><span class="p">,</span> <span class="n" style="color: #333;">reg_FP</span><span class="p">),</span></span>
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487
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<pre style="margin: 0;">+<span id="LC487" class="line" lang="c"> <span class="n" style="color: #333;">SC_REG</span><span class="p">(</span><span class="n" style="color: #333;">context</span><span class="p">,</span> <span class="n" style="color: #333;">reg_SP</span><span class="p">),</span></span>
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<pre style="margin: 0;">+<span id="LC488" class="line" lang="c"> <span class="n" style="color: #333;">SC_PC</span><span class="p">(</span><span class="n" style="color: #333;">context</span><span class="p">),</span></span>
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489
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<pre style="margin: 0;">+<span id="LC489" class="line" lang="c"> <span class="o" style="font-weight: 600;">*</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">unsigned</span> <span class="kt" style="color: #458; font-weight: 600;">char</span><span class="o" style="font-weight: 600;">*</span><span class="p">)(</span><span class="n" style="color: #333;">SC_PC</span><span class="p">(</span><span class="n" style="color: #333;">context</span><span class="p">)</span> <span class="o" style="font-weight: 600;">+</span> <span class="mi" style="color: #099;">0</span><span class="p">),</span> <span class="cm" style="color: #998; font-style: italic;">/* 0x0F */</span></span>
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490
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<pre style="margin: 0;">+<span id="LC490" class="line" lang="c"> <span class="o" style="font-weight: 600;">*</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">unsigned</span> <span class="kt" style="color: #458; font-weight: 600;">char</span><span class="o" style="font-weight: 600;">*</span><span class="p">)(</span><span class="n" style="color: #333;">SC_PC</span><span class="p">(</span><span class="n" style="color: #333;">context</span><span class="p">)</span> <span class="o" style="font-weight: 600;">+</span> <span class="mi" style="color: #099;">1</span><span class="p">),</span> <span class="cm" style="color: #998; font-style: italic;">/* 0x0B */</span></span>
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<pre style="margin: 0;">+<span id="LC491" class="line" lang="c"> <span class="o" style="font-weight: 600;">*</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">unsigned</span> <span class="kt" style="color: #458; font-weight: 600;">char</span><span class="o" style="font-weight: 600;">*</span><span class="p">)(</span><span class="n" style="color: #333;">SC_PC</span><span class="p">(</span><span class="n" style="color: #333;">context</span><span class="p">)</span> <span class="o" style="font-weight: 600;">+</span> <span class="mi" style="color: #099;">2</span><span class="p">),</span></span>
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492
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<pre style="margin: 0;">+<span id="LC492" class="line" lang="c"> <span class="o" style="font-weight: 600;">*</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">unsigned</span> <span class="kt" style="color: #458; font-weight: 600;">char</span><span class="o" style="font-weight: 600;">*</span><span class="p">)(</span><span class="n" style="color: #333;">SC_PC</span><span class="p">(</span><span class="n" style="color: #333;">context</span><span class="p">)</span> <span class="o" style="font-weight: 600;">+</span> <span class="mi" style="color: #099;">3</span><span class="p">),</span></span>
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493
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<pre style="margin: 0;">+<span id="LC493" class="line" lang="c"> <span class="o" style="font-weight: 600;">*</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">unsigned</span> <span class="kt" style="color: #458; font-weight: 600;">char</span><span class="o" style="font-weight: 600;">*</span><span class="p">)(</span><span class="n" style="color: #333;">SC_PC</span><span class="p">(</span><span class="n" style="color: #333;">context</span><span class="p">)</span> <span class="o" style="font-weight: 600;">+</span> <span class="mi" style="color: #099;">4</span><span class="p">));</span></span>
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494
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<pre style="margin: 0;">+<span id="LC494" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#endif </span></span>
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495
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<pre style="margin: 0;">+<span id="LC495" class="line" lang="c"> <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="n" style="color: #333;">single_stepping</span> <span class="o" style="font-weight: 600;">&&</span> <span class="p">(</span><span class="n" style="color: #333;">signal</span> <span class="o" style="font-weight: 600;">==</span> <span class="n" style="color: #333;">SIGTRAP</span><span class="p">))</span> <span class="p">{</span></span>
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496
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<pre style="margin: 0;">+<span id="LC496" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#if 1</span></span>
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497
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<pre style="margin: 0;">+<span id="LC497" class="line" lang="c"> <span class="n" style="color: #333;">fprintf</span><span class="p">(</span><span class="n" style="color: #333;">stderr</span><span class="p">,</span> <span class="s" style="color: #d14;">"* Single step trap %p</span><span class="se" style="color: #d14;">\n</span><span class="s" style="color: #d14;">"</span><span class="p">,</span> <span class="n" style="color: #333;">single_stepping</span><span class="p">);</span></span>
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498
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<pre style="margin: 0;">+<span id="LC498" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#endif</span></span>
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499
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<pre style="margin: 0;">+<span id="LC499" class="line" lang="c"></span>
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500
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<pre style="margin: 0;">+<span id="LC500" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#ifdef SC_EFLAGS</span></span>
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501
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<pre style="margin: 0;">+<span id="LC501" class="line" lang="c"> <span class="cm" style="color: #998; font-style: italic;">/* Disable single-stepping */</span></span>
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502
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<pre style="margin: 0;">+<span id="LC502" class="line" lang="c"> <span class="n" style="color: #333;">SC_EFLAGS</span><span class="p">(</span><span class="n" style="color: #333;">os_context</span><span class="p">)</span> <span class="o" style="font-weight: 600;">^=</span> <span class="mh" style="color: #099;">0x100</span><span class="p">;</span></span>
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503
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<pre style="margin: 0;">+<span id="LC503" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#else</span></span>
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504
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<pre style="margin: 0;">+<span id="LC504" class="line" lang="c"> <span class="cm" style="color: #998; font-style: italic;">/* Un-install single step helper instructions. */</span></span>
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505
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<pre style="margin: 0;">+<span id="LC505" class="line" lang="c"> <span class="o" style="font-weight: 600;">*</span><span class="p">(</span><span class="n" style="color: #333;">single_stepping</span> <span class="o" style="font-weight: 600;">-</span> <span class="mi" style="color: #099;">3</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">single_step_save1</span><span class="p">;</span></span>
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<td class="new_line diff-line-num new" data-linenumber="506" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
506
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<pre style="margin: 0;">+<span id="LC506" class="line" lang="c"> <span class="o" style="font-weight: 600;">*</span><span class="p">(</span><span class="n" style="color: #333;">single_stepping</span> <span class="o" style="font-weight: 600;">-</span> <span class="mi" style="color: #099;">2</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">single_step_save2</span><span class="p">;</span></span>
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507
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<pre style="margin: 0;">+<span id="LC507" class="line" lang="c"> <span class="o" style="font-weight: 600;">*</span><span class="p">(</span><span class="n" style="color: #333;">single_stepping</span> <span class="o" style="font-weight: 600;">-</span> <span class="mi" style="color: #099;">1</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">single_step_save3</span><span class="p">;</span></span>
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508
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<pre style="margin: 0;">+<span id="LC508" class="line" lang="c"> <span class="n" style="color: #333;">DPRINTF</span><span class="p">(</span><span class="mi" style="color: #099;">0</span><span class="p">,</span> <span class="p">(</span><span class="n" style="color: #333;">stderr</span><span class="p">,</span> <span class="s" style="color: #d14;">"Uninstalling helper instructions</span><span class="se" style="color: #d14;">\n</span><span class="s" style="color: #d14;">"</span><span class="p">));</span></span>
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509
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<pre style="margin: 0;">+<span id="LC509" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#endif</span></span>
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510
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<pre style="margin: 0;">+<span id="LC510" class="line" lang="c"></span>
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511
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<pre style="margin: 0;">+<span id="LC511" class="line" lang="c"> <span class="cm" style="color: #998; font-style: italic;">/*</span></span>
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512
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<pre style="margin: 0;">+<span id="LC512" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * Re-install the breakpoint if possible.</span></span>
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513
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<pre style="margin: 0;">+<span id="LC513" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> */</span></span>
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514
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<pre style="margin: 0;">+<span id="LC514" class="line" lang="c"> <span class="n" style="color: #333;">fprintf</span><span class="p">(</span><span class="n" style="color: #333;">stderr</span><span class="p">,</span> <span class="s" style="color: #d14;">"* Maybe reinstall breakpoint for pc %p with single_stepping %p</span><span class="se" style="color: #d14;">\n</span><span class="s" style="color: #d14;">"</span><span class="p">,</span></span>
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<td class="new_line diff-line-num new" data-linenumber="515" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
515
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<pre style="margin: 0;">+<span id="LC515" class="line" lang="c"> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">void</span><span class="o" style="font-weight: 600;">*</span><span class="p">)</span> <span class="n" style="color: #333;">SC_PC</span><span class="p">(</span><span class="n" style="color: #333;">os_context</span><span class="p">),</span> <span class="n" style="color: #333;">single_stepping</span><span class="p">);</span></span>
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516
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<pre style="margin: 0;">+<span id="LC516" class="line" lang="c"> </span>
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517
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<pre style="margin: 0;">+<span id="LC517" class="line" lang="c"> <span class="k" style="font-weight: 600;">if</span> <span class="p">((</span><span class="kt" style="color: #458; font-weight: 600;">unsigned</span> <span class="kt" style="color: #458; font-weight: 600;">long</span><span class="p">)</span> <span class="n" style="color: #333;">SC_PC</span><span class="p">(</span><span class="n" style="color: #333;">os_context</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><=</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">unsigned</span> <span class="kt" style="color: #458; font-weight: 600;">long</span><span class="p">)</span> <span class="n" style="color: #333;">single_stepping</span> <span class="o" style="font-weight: 600;">+</span> <span class="mi" style="color: #099;">3</span><span class="p">)</span></span>
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518
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<pre style="margin: 0;">+<span id="LC518" class="line" lang="c"> <span class="n" style="color: #333;">fprintf</span><span class="p">(</span><span class="n" style="color: #333;">stderr</span><span class="p">,</span> <span class="s" style="color: #d14;">"* Breakpoint not re-install</span><span class="se" style="color: #d14;">\n</span><span class="s" style="color: #d14;">"</span><span class="p">);</span></span>
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519
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<pre style="margin: 0;">+<span id="LC519" class="line" lang="c"> <span class="k" style="font-weight: 600;">else</span> <span class="p">{</span></span>
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520
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<pre style="margin: 0;">+<span id="LC520" class="line" lang="c"> <span class="kt" style="color: #458; font-weight: 600;">char</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">ptr</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">char</span> <span class="o" style="font-weight: 600;">*</span><span class="p">)</span> <span class="n" style="color: #333;">single_stepping</span><span class="p">;</span></span>
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521
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<pre style="margin: 0;">+<span id="LC521" class="line" lang="c"></span>
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522
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<pre style="margin: 0;">+<span id="LC522" class="line" lang="c"><span class="c" style="color: #998; font-style: italic;">#if 0</span></span>
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523
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<pre style="margin: 0;">+<span id="LC523" class="line" lang="c"><span class="c" style="color: #998; font-style: italic;"> ptr[0] = BREAKPOINT_INST; /* x86 INT3 */</span></span>
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524
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<pre style="margin: 0;">+<span id="LC524" class="line" lang="c"><span class="c" style="color: #998; font-style: italic;"> ptr[1] = trap_Breakpoint;</span></span>
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525
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<pre style="margin: 0;">+<span id="LC525" class="line" lang="c"><span class="c" style="color: #998; font-style: italic;">#else</span></span>
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526
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<pre style="margin: 0;">+<span id="LC526" class="line" lang="c"> <span class="n" style="color: #333;">ptr</span><span class="p">[</span><span class="mi" style="color: #099;">0</span><span class="p">]</span> <span class="o" style="font-weight: 600;">=</span> <span class="mh" style="color: #099;">0x0f</span><span class="p">;</span></span>
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527
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<pre style="margin: 0;">+<span id="LC527" class="line" lang="c"> <span class="n" style="color: #333;">ptr</span><span class="p">[</span><span class="mi" style="color: #099;">1</span><span class="p">]</span> <span class="o" style="font-weight: 600;">=</span> <span class="mh" style="color: #099;">0x0b</span><span class="p">;</span></span>
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528
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<pre style="margin: 0;">+<span id="LC528" class="line" lang="c"> <span class="n" style="color: #333;">ptr</span><span class="p">[</span><span class="mi" style="color: #099;">2</span><span class="p">]</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">trap_Breakpoint</span><span class="p">;</span></span>
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529
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<pre style="margin: 0;">+<span id="LC529" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#endif </span></span>
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530
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<pre style="margin: 0;">+<span id="LC530" class="line" lang="c"> <span class="p">}</span></span>
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531
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<pre style="margin: 0;">+<span id="LC531" class="line" lang="c"></span>
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532
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<pre style="margin: 0;">+<span id="LC532" class="line" lang="c"> <span class="n" style="color: #333;">single_stepping</span> <span class="o" style="font-weight: 600;">=</span> <span class="nb" style="color: #0086b3;">NULL</span><span class="p">;</span></span>
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533
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<pre style="margin: 0;">+<span id="LC533" class="line" lang="c"> <span class="k" style="font-weight: 600;">return</span><span class="p">;</span></span>
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534
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<pre style="margin: 0;">+<span id="LC534" class="line" lang="c"> <span class="p">}</span></span>
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535
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<pre style="margin: 0;">+<span id="LC535" class="line" lang="c"><span class="p">}</span></span>
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536
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<pre style="margin: 0;">+<span id="LC536" class="line" lang="c"></span>
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537
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<pre style="margin: 0;">+<span id="LC537" class="line" lang="c"></span>
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463
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538
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<pre style="margin: 0;"> <span id="LC538" class="line" lang="c"><span class="kt" style="color: #458; font-weight: 600;">void</span></span>
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<pre style="margin: 0;"> <span id="LC539" class="line" lang="c"><span class="nf" style="color: #900; font-weight: 600;">arch_install_interrupt_handlers</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">void</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC540" class="line" lang="c"><span class="p">{</span></span>
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<pre style="margin: 0;"> <span id="LC541" class="line" lang="c"> <span class="n" style="color: #333;">interrupt_install_low_level_handler</span><span class="p">(</span><span class="n" style="color: #333;">SIGILL</span><span class="p">,</span> <span class="n" style="color: #333;">sigill_handler</span><span class="p">);</span></span>
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<pre style="margin: 0;">+<span id="LC542" class="line" lang="c"> <span class="n" style="color: #333;">interrupt_install_low_level_handler</span><span class="p">(</span><span class="n" style="color: #333;">SIGTRAP</span><span class="p">,</span> <span class="n" style="color: #333;">sigtrap_handler</span><span class="p">);</span></span>
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543
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<pre style="margin: 0;"> <span id="LC543" class="line" lang="c"><span class="p">}</span></span>
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<pre style="margin: 0;"> <span id="LC544" class="line" lang="c"><span class="err" style="color: #a61717; background-color: #e3d2d2;"></span></span>
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545
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<pre style="margin: 0;"> <span id="LC545" class="line" lang="c"></span>
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