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<h3>
Raymond Toy pushed to branch master
at <a href="https://gitlab.common-lisp.net/cmucl/cmucl">cmucl / cmucl</a>
</h3>
<h4>
Commits:
</h4>
<ul>
<li>
<strong><a href="https://gitlab.common-lisp.net/cmucl/cmucl/-/commit/51f730c2b01de31f973bbca9e96485c66db68e92">51f730c2</a></strong>
<div>
<span>by Raymond Toy</span>
<i>at 2021-01-02T14:11:17-08:00</i>
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<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Remove PAGE_WRITE_PROTECT_CLEARED and MASK.
This macro and mask is only used once to set the bit (near line 498).
It's not read anywhere, so remove it.
Addresses #89.
</pre>
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<li>
<strong><a href="https://gitlab.common-lisp.net/cmucl/cmucl/-/commit/c60c50da55aa3ec4d88b31bbea225c04f87a926b">c60c50da</a></strong>
<div>
<span>by Raymond Toy</span>
<i>at 2021-01-02T22:35:29+00:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Merge branch 'issue-89-remove-page-write-protect-cleared' into 'master'
Remove PAGE_WRITE_PROTECT_CLEARED and MASK.
See merge request cmucl/cmucl!57</pre>
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<h4>2 changed files:</h4>
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<li class="file-stats">
<a href="#cf4382f8ca021c9a92f2dafc9afa3d17b373eed7">
src/lisp/gencgc.c
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<a href="#8f572308b07bf60796fb8947f5c0e3fbcf4965b3">
src/lisp/gencgc.h
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<h4>Changes:</h4>
<li id="cf4382f8ca021c9a92f2dafc9afa3d17b373eed7">
<a href="https://gitlab.common-lisp.net/cmucl/cmucl/-/compare/d1b59ff32243a8243c55f126f4becd9ba7d81bfe...c60c50da55aa3ec4d88b31bbea225c04f87a926b#cf4382f8ca021c9a92f2dafc9afa3d17b373eed7"><strong>src/lisp/gencgc.c</strong></a>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="495" 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="495" 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">@@ -495,7 +495,6 @@ gc_write_barrier(void *addr)</td>
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495
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<td class="diff-line-num new_line" data-linenumber="495" 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">
495
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<pre style="margin: 0;"> <span id="LC495" class="line" lang="c"> <span class="cm" style="color: #998; font-style: italic;">/* Un-protect the page */</span></span>
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496
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<td class="diff-line-num new_line" data-linenumber="496" 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">
496
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<pre style="margin: 0;"> <span id="LC496" class="line" lang="c"> <span class="n" style="color: #333;">os_protect</span><span class="p">((</span><span class="n" style="color: #333;">os_vm_address_t</span><span class="p">)</span> <span class="n" style="color: #333;">page_address</span><span class="p">(</span><span class="n" style="color: #333;">page_index</span><span class="p">),</span> <span class="n" style="color: #333;">GC_PAGE_SIZE</span><span class="p">,</span> <span class="n" style="color: #333;">OS_VM_PROT_ALL</span><span class="p">);</span></span>
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497
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<td class="diff-line-num new_line" data-linenumber="497" 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">
497
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<pre style="margin: 0;"> <span id="LC497" class="line" lang="c"> <span class="n" style="color: #333;">page_table</span><span class="p">[</span><span class="n" style="color: #333;">page_index</span><span class="p">].</span><span class="n" style="color: #333;">flags</span> <span class="o" style="font-weight: 600;">&=</span> <span class="o" style="font-weight: 600;">~</span><span class="n" style="color: #333;">PAGE_WRITE_PROTECTED_MASK</span><span class="p">;</span></span>
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<td class="diff-line-num old old_line" data-linenumber="498" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
498
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<pre style="margin: 0;">-<span id="LC498" class="line" lang="c"> <span class="n" style="color: #333;">page_table</span><span class="p">[</span><span class="n" style="color: #333;">page_index</span><span class="p">].</span><span class="n" style="color: #333;">flags</span> <span class="o" style="font-weight: 600;">|=</span> <span class="n" style="color: #333;">PAGE_WRITE_PROTECT_CLEARED_MASK</span><span class="p">;</span></span>
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499
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498
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<pre style="margin: 0;"> <span id="LC498" class="line" lang="c"></span>
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500
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<pre style="margin: 0;"> <span id="LC499" class="line" lang="c"> <span class="k" style="font-weight: 600;">return</span> <span class="mi" style="color: #099;">1</span><span class="p">;</span></span>
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501
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500
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<pre style="margin: 0;"> <span id="LC500" class="line" lang="c"><span class="p">}</span></span>
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<li id="8f572308b07bf60796fb8947f5c0e3fbcf4965b3">
<a href="https://gitlab.common-lisp.net/cmucl/cmucl/-/compare/d1b59ff32243a8243c55f126f4becd9ba7d81bfe...c60c50da55aa3ec4d88b31bbea225c04f87a926b#8f572308b07bf60796fb8947f5c0e3fbcf4965b3"><strong>src/lisp/gencgc.h</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">@@ -45,16 +45,6 @@ int gc_write_barrier(void *);</td>
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45
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<pre style="margin: 0;"> <span id="LC45" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#define PAGE_WRITE_PROTECTED(page) \</span></span>
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46
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<pre style="margin: 0;"> <span id="LC46" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;"> (page_table[page].flags & PAGE_WRITE_PROTECTED_MASK)</span></span>
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47
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<pre style="margin: 0;"> <span id="LC47" class="line" lang="c"></span>
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<pre style="margin: 0;">-<span id="LC48" 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="LC49" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * This flag is set when the above write protect flag is clear by the</span></span>
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50
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<pre style="margin: 0;">-<span id="LC50" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * sigbus handler. This is useful for re-scavenging pages that are</span></span>
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<td class="diff-line-num old old_line" data-linenumber="51" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
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<pre style="margin: 0;">-<span id="LC51" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * written during a GC.</span></span>
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<pre style="margin: 0;">-<span id="LC52" 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="LC53" class="line" lang="c"></span>
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<pre style="margin: 0;">-<span id="LC54" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#define PAGE_WRITE_PROTECT_CLEARED_MASK 0x00000020</span></span>
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<pre style="margin: 0;">-<span id="LC55" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#define PAGE_WRITE_PROTECT_CLEARED(page) \</span></span>
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<pre style="margin: 0;">-<span id="LC56" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;"> (page_table[page].flags & PAGE_WRITE_PROTECT_CLEARED_MASK)</span></span>
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<pre style="margin: 0;">-<span id="LC57" class="line" lang="c"></span>
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<pre style="margin: 0;"> <span id="LC48" 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="LC49" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * Page allocated flag: 0 for a free page; 1 when allocated. If</span></span>
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<pre style="margin: 0;"> <span id="LC50" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * the page is free then the following slots are invalid - well</span></span>
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