mirror of
https://github.com/chromium/crashpad.git
synced 2025-03-22 20:03:50 +00:00
1098 lines
28 KiB
HTML
1098 lines
28 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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<meta name="generator" content="AsciiDoc 8.6.9">
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<title>exception_port_tool(1)</title>
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<style type="text/css">
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/* Shared CSS for AsciiDoc xhtml11 and html5 backends */
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/* Default font. */
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body {
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font-family: Georgia,serif;
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}
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/* Title font. */
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h1, h2, h3, h4, h5, h6,
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div.title, caption.title,
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thead, p.table.header,
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#toctitle,
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#author, #revnumber, #revdate, #revremark,
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#footer {
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font-family: Arial,Helvetica,sans-serif;
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||
}
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body {
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||
margin: 1em 5% 1em 5%;
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}
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a {
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color: blue;
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text-decoration: underline;
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}
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a:visited {
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color: fuchsia;
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}
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em {
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font-style: italic;
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color: navy;
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}
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strong {
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font-weight: bold;
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color: #083194;
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}
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h1, h2, h3, h4, h5, h6 {
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color: #527bbd;
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margin-top: 1.2em;
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margin-bottom: 0.5em;
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line-height: 1.3;
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}
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h1, h2, h3 {
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border-bottom: 2px solid silver;
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||
}
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h2 {
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padding-top: 0.5em;
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}
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h3 {
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||
float: left;
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||
}
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h3 + * {
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clear: left;
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||
}
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||
h5 {
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font-size: 1.0em;
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||
}
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div.sectionbody {
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margin-left: 0;
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}
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hr {
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border: 1px solid silver;
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}
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p {
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margin-top: 0.5em;
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margin-bottom: 0.5em;
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}
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ul, ol, li > p {
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margin-top: 0;
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}
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ul > li { color: #aaa; }
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ul > li > * { color: black; }
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.monospaced, code, pre {
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font-family: "Courier New", Courier, monospace;
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font-size: inherit;
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color: navy;
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padding: 0;
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margin: 0;
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}
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pre {
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white-space: pre-wrap;
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}
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#author {
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color: #527bbd;
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font-weight: bold;
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font-size: 1.1em;
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}
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#email {
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}
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#revnumber, #revdate, #revremark {
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}
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#footer {
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font-size: small;
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border-top: 2px solid silver;
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padding-top: 0.5em;
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margin-top: 4.0em;
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}
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#footer-text {
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float: left;
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padding-bottom: 0.5em;
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}
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#footer-badges {
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float: right;
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padding-bottom: 0.5em;
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}
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#preamble {
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margin-top: 1.5em;
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margin-bottom: 1.5em;
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}
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div.imageblock, div.exampleblock, div.verseblock,
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div.quoteblock, div.literalblock, div.listingblock, div.sidebarblock,
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div.admonitionblock {
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margin-top: 1.0em;
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margin-bottom: 1.5em;
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}
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div.admonitionblock {
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margin-top: 2.0em;
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margin-bottom: 2.0em;
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margin-right: 10%;
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color: #606060;
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}
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div.content { /* Block element content. */
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padding: 0;
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}
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/* Block element titles. */
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div.title, caption.title {
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color: #527bbd;
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font-weight: bold;
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text-align: left;
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margin-top: 1.0em;
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margin-bottom: 0.5em;
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}
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div.title + * {
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margin-top: 0;
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}
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td div.title:first-child {
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margin-top: 0.0em;
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}
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div.content div.title:first-child {
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margin-top: 0.0em;
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}
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div.content + div.title {
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margin-top: 0.0em;
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}
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div.sidebarblock > div.content {
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background: #ffffee;
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border: 1px solid #dddddd;
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border-left: 4px solid #f0f0f0;
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padding: 0.5em;
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}
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div.listingblock > div.content {
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border: 1px solid #dddddd;
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border-left: 5px solid #f0f0f0;
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background: #f8f8f8;
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padding: 0.5em;
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}
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div.quoteblock, div.verseblock {
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padding-left: 1.0em;
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margin-left: 1.0em;
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margin-right: 10%;
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border-left: 5px solid #f0f0f0;
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color: #888;
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}
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div.quoteblock > div.attribution {
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padding-top: 0.5em;
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text-align: right;
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}
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div.verseblock > pre.content {
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font-family: inherit;
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font-size: inherit;
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}
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div.verseblock > div.attribution {
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padding-top: 0.75em;
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text-align: left;
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}
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/* DEPRECATED: Pre version 8.2.7 verse style literal block. */
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div.verseblock + div.attribution {
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text-align: left;
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}
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div.admonitionblock .icon {
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vertical-align: top;
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font-size: 1.1em;
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font-weight: bold;
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text-decoration: underline;
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color: #527bbd;
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padding-right: 0.5em;
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}
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div.admonitionblock td.content {
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padding-left: 0.5em;
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border-left: 3px solid #dddddd;
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}
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div.exampleblock > div.content {
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border-left: 3px solid #dddddd;
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padding-left: 0.5em;
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}
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div.imageblock div.content { padding-left: 0; }
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span.image img { border-style: none; vertical-align: text-bottom; }
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a.image:visited { color: white; }
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dl {
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margin-top: 0.8em;
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margin-bottom: 0.8em;
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}
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dt {
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margin-top: 0.5em;
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margin-bottom: 0;
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font-style: normal;
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color: navy;
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}
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dd > *:first-child {
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margin-top: 0.1em;
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}
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ul, ol {
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list-style-position: outside;
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}
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ol.arabic {
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list-style-type: decimal;
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}
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ol.loweralpha {
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list-style-type: lower-alpha;
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}
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ol.upperalpha {
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list-style-type: upper-alpha;
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}
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ol.lowerroman {
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list-style-type: lower-roman;
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}
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ol.upperroman {
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list-style-type: upper-roman;
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}
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div.compact ul, div.compact ol,
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div.compact p, div.compact p,
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div.compact div, div.compact div {
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margin-top: 0.1em;
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margin-bottom: 0.1em;
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}
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tfoot {
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font-weight: bold;
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}
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td > div.verse {
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white-space: pre;
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}
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div.hdlist {
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margin-top: 0.8em;
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margin-bottom: 0.8em;
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}
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div.hdlist tr {
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padding-bottom: 15px;
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}
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dt.hdlist1.strong, td.hdlist1.strong {
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font-weight: bold;
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}
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td.hdlist1 {
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vertical-align: top;
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font-style: normal;
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padding-right: 0.8em;
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color: navy;
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}
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td.hdlist2 {
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vertical-align: top;
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}
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div.hdlist.compact tr {
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margin: 0;
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padding-bottom: 0;
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}
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.comment {
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background: yellow;
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}
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.footnote, .footnoteref {
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font-size: 0.8em;
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}
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span.footnote, span.footnoteref {
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vertical-align: super;
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}
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#footnotes {
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margin: 20px 0 20px 0;
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padding: 7px 0 0 0;
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}
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#footnotes div.footnote {
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margin: 0 0 5px 0;
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}
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#footnotes hr {
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border: none;
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border-top: 1px solid silver;
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height: 1px;
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text-align: left;
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margin-left: 0;
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width: 20%;
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min-width: 100px;
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}
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div.colist td {
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padding-right: 0.5em;
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padding-bottom: 0.3em;
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vertical-align: top;
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}
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div.colist td img {
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margin-top: 0.3em;
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}
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@media print {
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#footer-badges { display: none; }
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}
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#toc {
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margin-bottom: 2.5em;
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}
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#toctitle {
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color: #527bbd;
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font-size: 1.1em;
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font-weight: bold;
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margin-top: 1.0em;
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margin-bottom: 0.1em;
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}
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div.toclevel0, div.toclevel1, div.toclevel2, div.toclevel3, div.toclevel4 {
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margin-top: 0;
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margin-bottom: 0;
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||
}
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div.toclevel2 {
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margin-left: 2em;
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font-size: 0.9em;
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}
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div.toclevel3 {
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margin-left: 4em;
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font-size: 0.9em;
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}
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div.toclevel4 {
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margin-left: 6em;
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font-size: 0.9em;
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}
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||
span.aqua { color: aqua; }
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span.black { color: black; }
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span.blue { color: blue; }
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span.fuchsia { color: fuchsia; }
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span.gray { color: gray; }
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span.green { color: green; }
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span.lime { color: lime; }
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||
span.maroon { color: maroon; }
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||
span.navy { color: navy; }
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||
span.olive { color: olive; }
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||
span.purple { color: purple; }
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||
span.red { color: red; }
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||
span.silver { color: silver; }
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||
span.teal { color: teal; }
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||
span.white { color: white; }
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||
span.yellow { color: yellow; }
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||
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||
span.aqua-background { background: aqua; }
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span.black-background { background: black; }
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span.blue-background { background: blue; }
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||
span.fuchsia-background { background: fuchsia; }
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||
span.gray-background { background: gray; }
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span.green-background { background: green; }
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span.lime-background { background: lime; }
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span.maroon-background { background: maroon; }
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span.navy-background { background: navy; }
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||
span.olive-background { background: olive; }
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||
span.purple-background { background: purple; }
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||
span.red-background { background: red; }
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span.silver-background { background: silver; }
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span.teal-background { background: teal; }
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||
span.white-background { background: white; }
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||
span.yellow-background { background: yellow; }
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||
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span.big { font-size: 2em; }
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||
span.small { font-size: 0.6em; }
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||
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||
span.underline { text-decoration: underline; }
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||
span.overline { text-decoration: overline; }
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||
span.line-through { text-decoration: line-through; }
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||
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||
div.unbreakable { page-break-inside: avoid; }
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||
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||
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/*
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* xhtml11 specific
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*
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* */
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div.tableblock {
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margin-top: 1.0em;
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margin-bottom: 1.5em;
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}
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div.tableblock > table {
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border: 3px solid #527bbd;
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||
}
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thead, p.table.header {
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font-weight: bold;
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||
color: #527bbd;
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||
}
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p.table {
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margin-top: 0;
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||
}
|
||
/* Because the table frame attribute is overriden by CSS in most browsers. */
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div.tableblock > table[frame="void"] {
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||
border-style: none;
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||
}
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||
div.tableblock > table[frame="hsides"] {
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||
border-left-style: none;
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||
border-right-style: none;
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||
}
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||
div.tableblock > table[frame="vsides"] {
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border-top-style: none;
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||
border-bottom-style: none;
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||
}
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||
|
||
|
||
/*
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* html5 specific
|
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*
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||
* */
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||
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||
table.tableblock {
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||
margin-top: 1.0em;
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||
margin-bottom: 1.5em;
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||
}
|
||
thead, p.tableblock.header {
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||
font-weight: bold;
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||
color: #527bbd;
|
||
}
|
||
p.tableblock {
|
||
margin-top: 0;
|
||
}
|
||
table.tableblock {
|
||
border-width: 3px;
|
||
border-spacing: 0px;
|
||
border-style: solid;
|
||
border-color: #527bbd;
|
||
border-collapse: collapse;
|
||
}
|
||
th.tableblock, td.tableblock {
|
||
border-width: 1px;
|
||
padding: 4px;
|
||
border-style: solid;
|
||
border-color: #527bbd;
|
||
}
|
||
|
||
table.tableblock.frame-topbot {
|
||
border-left-style: hidden;
|
||
border-right-style: hidden;
|
||
}
|
||
table.tableblock.frame-sides {
|
||
border-top-style: hidden;
|
||
border-bottom-style: hidden;
|
||
}
|
||
table.tableblock.frame-none {
|
||
border-style: hidden;
|
||
}
|
||
|
||
th.tableblock.halign-left, td.tableblock.halign-left {
|
||
text-align: left;
|
||
}
|
||
th.tableblock.halign-center, td.tableblock.halign-center {
|
||
text-align: center;
|
||
}
|
||
th.tableblock.halign-right, td.tableblock.halign-right {
|
||
text-align: right;
|
||
}
|
||
|
||
th.tableblock.valign-top, td.tableblock.valign-top {
|
||
vertical-align: top;
|
||
}
|
||
th.tableblock.valign-middle, td.tableblock.valign-middle {
|
||
vertical-align: middle;
|
||
}
|
||
th.tableblock.valign-bottom, td.tableblock.valign-bottom {
|
||
vertical-align: bottom;
|
||
}
|
||
|
||
|
||
/*
|
||
* manpage specific
|
||
*
|
||
* */
|
||
|
||
body.manpage h1 {
|
||
padding-top: 0.5em;
|
||
padding-bottom: 0.5em;
|
||
border-top: 2px solid silver;
|
||
border-bottom: 2px solid silver;
|
||
}
|
||
body.manpage h2 {
|
||
border-style: none;
|
||
}
|
||
body.manpage div.sectionbody {
|
||
margin-left: 3em;
|
||
}
|
||
|
||
@media print {
|
||
body.manpage div#toc { display: none; }
|
||
}
|
||
|
||
|
||
/* Copyright 2015 The Crashpad Authors. All rights reserved.
|
||
*
|
||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||
* you may not use this file except in compliance with the License.
|
||
* You may obtain a copy of the License at
|
||
*
|
||
* http://www.apache.org/licenses/LICENSE-2.0
|
||
*
|
||
* Unless required by applicable law or agreed to in writing, software
|
||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
* See the License for the specific language governing permissions and
|
||
* limitations under the License. */
|
||
|
||
/* The default AsciiDoc asciidoc.css specifies fuchsia as the visited link
|
||
* color. This has a dated appearance. Replace it with blue, the same color used
|
||
* for unvisited links. */
|
||
a:visited {
|
||
color: blue;
|
||
}
|
||
</style>
|
||
<script type="text/javascript">
|
||
/*<+'])');
|
||
// Function that scans the DOM tree for header elements (the DOM2
|
||
// nodeIterator API would be a better technique but not supported by all
|
||
// browsers).
|
||
var iterate = function (el) {
|
||
for (var i = el.firstChild; i != null; i = i.nextSibling) {
|
||
if (i.nodeType == 1 /* Node.ELEMENT_NODE */) {
|
||
var mo = re.exec(i.tagName);
|
||
if (mo && (i.getAttribute("class") || i.getAttribute("className")) != "float") {
|
||
result[result.length] = new TocEntry(i, getText(i), mo[1]-1);
|
||
}
|
||
iterate(i);
|
||
}
|
||
}
|
||
}
|
||
iterate(el);
|
||
return result;
|
||
}
|
||
|
||
var toc = document.getElementById("toc");
|
||
if (!toc) {
|
||
return;
|
||
}
|
||
|
||
// Delete existing TOC entries in case we're reloading the TOC.
|
||
var tocEntriesToRemove = [];
|
||
var i;
|
||
for (i = 0; i < toc.childNodes.length; i++) {
|
||
var entry = toc.childNodes[i];
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</head>
|
||
<body class="manpage">
|
||
<div id="header">
|
||
<h1>
|
||
exception_port_tool(1) Manual Page
|
||
</h1>
|
||
<h2>NAME</h2>
|
||
<div class="sectionbody">
|
||
<p>exception_port_tool -
|
||
Show and change Mach exception ports
|
||
</p>
|
||
</div>
|
||
</div>
|
||
<div id="content">
|
||
<div class="sect1">
|
||
<h2 id="_synopsis">Synopsis</h2>
|
||
<div class="sectionbody">
|
||
<div class="verseblock">
|
||
<pre class="content"><strong>exception_port_tool</strong> [<em>OPTION…</em>] [<em>COMMAND</em> [<em>ARG…</em>]]</pre>
|
||
<div class="attribution">
|
||
</div></div>
|
||
</div>
|
||
</div>
|
||
<div class="sect1">
|
||
<h2 id="_description">Description</h2>
|
||
<div class="sectionbody">
|
||
<div class="paragraph"><p>Shows Mach exception ports registered for a thread, task, or host target with a
|
||
<strong>--show-*</strong> option, changes Mach exception ports with <strong>--set-handler</strong>, shows
|
||
changes with a <strong>--show-new-*</strong> option, and executes <em>COMMAND</em> along with any
|
||
arguments specified (<em>ARG…</em>) with the changed exception ports in effect.</p></div>
|
||
</div>
|
||
</div>
|
||
<div class="sect1">
|
||
<h2 id="_options">Options</h2>
|
||
<div class="sectionbody">
|
||
<div class="dlist"><dl>
|
||
<dt class="hdlist1">
|
||
<strong>-s</strong>, <strong>--set-handler</strong>=<em>DESCRIPTION</em>
|
||
</dt>
|
||
<dd>
|
||
<p>
|
||
Set an exception port to <em>DESCRIPTION</em>. This option may appear zero, one, or
|
||
more times.
|
||
</p>
|
||
<div class="paragraph"><p><em>DESCRIPTION</em> is formatted as a comma-separated sequence of tokens, where each
|
||
token consists of a key and value separated by an equals sign. These keys are
|
||
recognized:</p></div>
|
||
<div class="dlist"><dl>
|
||
<dt class="hdlist1">
|
||
<strong>target</strong>=<em>TARGET</em>
|
||
</dt>
|
||
<dd>
|
||
<p>
|
||
<em>TARGET</em> defines which target’s exception ports to set: <strong>host</strong>, <strong>task</strong>, or
|
||
<strong>thread</strong>. The default value of <em>TARGET</em> is <strong>task</strong>. Operations on <strong>host</strong> are
|
||
restricted to the superuser.
|
||
</p>
|
||
</dd>
|
||
<dt class="hdlist1">
|
||
<strong>mask</strong>=<em>MASK</em>
|
||
</dt>
|
||
<dd>
|
||
<p>
|
||
<em>MASK</em> defines the mask of exception types to handle, from
|
||
<span class="monospaced"><mach/exception_types.h></span>. This can be <strong>BAD_ACCESS</strong>, <strong>BAD_INSTRUCTION</strong>,
|
||
<strong>ARITHMETIC</strong>, <strong>EMULATION</strong>, <strong>SOFTWARE</strong>, <strong>BREAKPOINT</strong>, <strong>SYSCALL</strong>, <strong>MACH_SYSCALL</strong>,
|
||
<strong>RPC_ALERT</strong>, <strong>CRASH</strong>, <strong>RESOURCE</strong>, <strong>GUARD</strong>, or <strong>CORPSE_NOTIFY</strong>. Different
|
||
exception types may be combined by combining them with pipe characters (<strong>|</strong>).
|
||
The special value <strong>ALL</strong> includes each exception type except for <strong>CRASH</strong>. To
|
||
truly specify all exception types including <strong>CRASH</strong>, use <strong>ALL|CRASH</strong>. The
|
||
default value of <em>MASK</em> is <strong>CRASH</strong>.
|
||
</p>
|
||
</dd>
|
||
<dt class="hdlist1">
|
||
<strong>behavior</strong>=<em>BEHAVIOR</em>
|
||
</dt>
|
||
<dd>
|
||
<p>
|
||
<em>BEHAVIOR</em> defines the specific exception handler routine to be called when an
|
||
exception occurs. This can be <strong>DEFAULT</strong>, <strong>STATE</strong>, or <strong>STATE_IDENTITY</strong>. <strong>MACH</strong>
|
||
may also be specified by combining them with pipe characters (<strong>|</strong>). The most
|
||
complete set of exception information is provided with <strong>STATE_IDENTITY|MACH</strong>.
|
||
Not all exception servers implement all possible behaviors. The default value of
|
||
<em>BEHAVIOR</em> is <strong>DEFAULT|MACH</strong>.
|
||
</p>
|
||
</dd>
|
||
<dt class="hdlist1">
|
||
<strong>flavor</strong>=<em>FLAVOR</em>
|
||
</dt>
|
||
<dd>
|
||
<p>
|
||
For state-carrying values of <em>BEHAVIOR</em> (those including <strong>STATE</strong> or
|
||
<strong>STATE_IDENTITY</strong>), <em>FLAVOR</em> specifies the architecture-specific thread state
|
||
flavor to be provided to the exception handler. For the x86 family, this can be
|
||
<strong>THREAD</strong>, <strong>THREAD32</strong>, <strong>THREAD64</strong>, <strong>FLOAT</strong>, <strong>FLOAT32</strong>, <strong>FLOAT64</strong>, <strong>DEBUG</strong>,
|
||
<strong>DEBUG32</strong>, or <strong>DEBUG64</strong>. The default value of <em>FLAVOR</em> is <strong>NONE</strong>, which is not
|
||
valid for state-carrying values of <em>BEHAVIOR</em>.
|
||
</p>
|
||
</dd>
|
||
<dt class="hdlist1">
|
||
<strong>handler</strong>=<em>HANDLER</em>
|
||
</dt>
|
||
<dd>
|
||
<p>
|
||
<em>HANDLER</em> defines the exception handler. <strong>NULL</strong> indicates that any existing
|
||
exception port should be cleared. <em>HANDLER</em> may also take the form
|
||
<strong>bootstrap</strong>:<em>SERVICE</em>, which will look <em>SERVICE</em> up with the bootstrap server
|
||
and set that service as the exception handler. The default value of <em>HANDLER</em> is
|
||
<strong>NULL</strong>.
|
||
</p>
|
||
</dd>
|
||
</dl></div>
|
||
</dd>
|
||
<dt class="hdlist1">
|
||
<strong>--show-bootstrap</strong>=<em>SERVICE</em>
|
||
</dt>
|
||
<dd>
|
||
<p>
|
||
Looks up <em>SERVICE</em> with the bootstrap server and shows it. Normally, the handler
|
||
port values displayed by the other <strong>--show-*</strong> options are meaningless
|
||
handles, but by comparing them to the port values for known bootstrap services,
|
||
it is possible to verify that they are set as intended.
|
||
</p>
|
||
</dd>
|
||
<dt class="hdlist1">
|
||
<strong>-p</strong>, <strong>--pid</strong>=<em>PID</em>
|
||
</dt>
|
||
<dd>
|
||
<p>
|
||
For operations on the task target, including <strong>--set-handler</strong> with <em>TARGET</em> set
|
||
to <strong>task</strong>, <strong>--show-task</strong>, and <strong>--show-new-task</strong>, operates on the task associated
|
||
with process id <em>PID</em> instead of the current task associated with the tool. When
|
||
this option is supplied, <em>COMMAND</em> must not be specified.
|
||
</p>
|
||
<div class="paragraph"><p>This option uses <span class="monospaced">task_for_pid()</span> to access the process’ task port. This
|
||
operation may be restricted to use by the superuser, executables signed by an
|
||
authority trusted by the system, and processes otherwise permitted by
|
||
taskgated(8). Consequently, this program must normally either be signed or be
|
||
invoked by root to use this option. It is possible to install this program as a
|
||
setuid root executable to overcome this limitation.</p></div>
|
||
</dd>
|
||
<dt class="hdlist1">
|
||
<strong>-h</strong>, <strong>--show-host</strong>
|
||
</dt>
|
||
<dd>
|
||
<p>
|
||
Shows the original host exception ports before making any changes requested by
|
||
<strong>--set-handler</strong>. This option is restricted to the superuser.
|
||
</p>
|
||
</dd>
|
||
<dt class="hdlist1">
|
||
<strong>-t</strong>, <strong>--show-task</strong>
|
||
</dt>
|
||
<dd>
|
||
<p>
|
||
Shows the original task exception ports before making any changes requested by
|
||
<strong>--set-handler</strong>.
|
||
</p>
|
||
</dd>
|
||
<dt class="hdlist1">
|
||
<strong>--show-thread</strong>
|
||
</dt>
|
||
<dd>
|
||
<p>
|
||
Shows the original thread exception ports before making any changes requested by
|
||
<strong>--set-handler</strong>.
|
||
</p>
|
||
</dd>
|
||
<dt class="hdlist1">
|
||
<strong>-H</strong>, <strong>--show-new-host</strong>
|
||
</dt>
|
||
<dd>
|
||
<p>
|
||
Shows the modified host exception ports after making any changes requested by
|
||
<strong>--set-handler</strong>. This option is restricted to the superuser.
|
||
</p>
|
||
</dd>
|
||
<dt class="hdlist1">
|
||
<strong>-T</strong>, <strong>--show-new-task</strong>
|
||
</dt>
|
||
<dd>
|
||
<p>
|
||
Shows the modified task exception ports after making any changes requested by
|
||
<strong>--set-handler</strong>.
|
||
</p>
|
||
</dd>
|
||
<dt class="hdlist1">
|
||
<strong>--show-new-thread</strong>
|
||
</dt>
|
||
<dd>
|
||
<p>
|
||
Shows the modified thread exception ports after making any changes requested by
|
||
<strong>--set-handler</strong>.
|
||
</p>
|
||
</dd>
|
||
<dt class="hdlist1">
|
||
<strong>-n</strong>, <strong>--numeric</strong>
|
||
</dt>
|
||
<dd>
|
||
<p>
|
||
For <strong>--show-*</strong> options, all values will be displayed numerically only. The
|
||
default is to decode numeric values and display them symbolically as well.
|
||
</p>
|
||
</dd>
|
||
<dt class="hdlist1">
|
||
<strong>--help</strong>
|
||
</dt>
|
||
<dd>
|
||
<p>
|
||
Display help and exit.
|
||
</p>
|
||
</dd>
|
||
<dt class="hdlist1">
|
||
<strong>--version</strong>
|
||
</dt>
|
||
<dd>
|
||
<p>
|
||
Output version information and exit.
|
||
</p>
|
||
</dd>
|
||
</dl></div>
|
||
</div>
|
||
</div>
|
||
<div class="sect1">
|
||
<h2 id="_examples">Examples</h2>
|
||
<div class="sectionbody">
|
||
<div class="paragraph"><p>Sets a new task-level exception handler for <span class="monospaced">EXC_CRASH</span>-type exceptions to the
|
||
handler registered with the bootstrap server as <span class="monospaced">svc</span>, showing the task-level
|
||
exception ports before and after the change. The old and new exception handlers
|
||
are verified by their service names as registered with the bootstrap server.
|
||
With the new task-level exception ports in effect, a program is run.</p></div>
|
||
<div class="listingblock">
|
||
<div class="content monospaced">
|
||
<pre>$ <strong>exception_port_tool --show-task --show-new-task \
|
||
--show-bootstrap=com.apple.ReportCrash --show-bootstrap=svc \
|
||
--set-handler=behavior=DEFAULT,handler=bootstrap:svc crash</strong>
|
||
service com.apple.ReportCrash 0xe03
|
||
service svc 0x1003
|
||
task exception port 0, mask 0x400 (CRASH), port 0xe03,
|
||
behavior 0x80000003 (STATE_IDENTITY|MACH), flavor 7 (THREAD)
|
||
new task exception port 0, mask 0x400 (CRASH), port 0x1003,
|
||
behavior 0x1 (DEFAULT), flavor 13 (NONE)
|
||
Illegal instruction: 4</pre>
|
||
</div></div>
|
||
<div class="paragraph"><p>Shows the task-level exception ports for the process with PID 1234. This
|
||
requires superuser permissions or the approval of taskgated(8).</p></div>
|
||
<div class="listingblock">
|
||
<div class="content monospaced">
|
||
<pre># <strong>exception_port_tool --pid=1234 --show-task</strong>
|
||
task exception port 0, mask 0x4e
|
||
(BAD_ACCESS|BAD_INSTRUCTION|ARITHMETIC|BREAKPOINT), port 0x1503,
|
||
behavior 0x1 (DEFAULT), flavor 13 (NONE)
|
||
task exception port 1, mask 0x1c00 (CRASH|RESOURCE|GUARD),
|
||
port 0x1403, behavior 0x80000003 (STATE_IDENTITY|MACH),
|
||
flavor 7 (THREAD)</pre>
|
||
</div></div>
|
||
</div>
|
||
</div>
|
||
<div class="sect1">
|
||
<h2 id="_exit_status">Exit Status</h2>
|
||
<div class="sectionbody">
|
||
<div class="dlist"><dl>
|
||
<dt class="hdlist1">
|
||
<strong>0</strong>
|
||
</dt>
|
||
<dd>
|
||
<p>
|
||
Success.
|
||
</p>
|
||
</dd>
|
||
<dt class="hdlist1">
|
||
<strong>125</strong>
|
||
</dt>
|
||
<dd>
|
||
<p>
|
||
Failure, with a message printed to the standard error stream.
|
||
</p>
|
||
</dd>
|
||
<dt class="hdlist1">
|
||
<strong>126</strong>
|
||
</dt>
|
||
<dd>
|
||
<p>
|
||
The program specified by <em>COMMAND</em> was found, but could not be invoked.
|
||
</p>
|
||
</dd>
|
||
<dt class="hdlist1">
|
||
<strong>127</strong>
|
||
</dt>
|
||
<dd>
|
||
<p>
|
||
The program specified by <em>COMMAND</em> could not be found.
|
||
</p>
|
||
</dd>
|
||
</dl></div>
|
||
</div>
|
||
</div>
|
||
<div class="sect1">
|
||
<h2 id="_see_also">See Also</h2>
|
||
<div class="sectionbody">
|
||
<div class="paragraph"><p><a href="catch_exception_tool.html">catch_exception_tool(1)</a>,
|
||
<a href="on_demand_service_tool.html">on_demand_service_tool(1)</a></p></div>
|
||
</div>
|
||
</div>
|
||
<div class="sect1">
|
||
<h2 id="_resources">Resources</h2>
|
||
<div class="sectionbody">
|
||
<div class="paragraph"><p>Crashpad home page: <a href="https://crashpad.chromium.org/">https://crashpad.chromium.org/</a>.</p></div>
|
||
<div class="paragraph"><p>Report bugs at <a href="https://crashpad.chromium.org/bug/new">https://crashpad.chromium.org/bug/new</a>.</p></div>
|
||
</div>
|
||
</div>
|
||
<div class="sect1">
|
||
<h2 id="_copyright">Copyright</h2>
|
||
<div class="sectionbody">
|
||
<div class="paragraph"><p>Copyright 2016
|
||
<a href="https://chromium.googlesource.com/crashpad/crashpad/+/master/AUTHORS">The
|
||
Crashpad Authors</a>.</p></div>
|
||
</div>
|
||
</div>
|
||
<div class="sect1">
|
||
<h2 id="_license">License</h2>
|
||
<div class="sectionbody">
|
||
<div class="paragraph"><p>Licensed under the Apache License, Version 2.0 (the “License”);
|
||
you may not use this file except in compliance with the License.
|
||
You may obtain a copy of the License at</p></div>
|
||
<div class="literalblock">
|
||
<div class="content monospaced">
|
||
<pre><a href="http://www.apache.org/licenses/LICENSE-2.0">http://www.apache.org/licenses/LICENSE-2.0</a></pre>
|
||
</div></div>
|
||
<div class="paragraph"><p>Unless required by applicable law or agreed to in writing, software
|
||
distributed under the License is distributed on an “AS IS” BASIS,
|
||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
See the License for the specific language governing permissions and
|
||
limitations under the License.</p></div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<div id="footnotes"><hr></div>
|
||
<div id="footer">
|
||
<div id="footer-text">
|
||
Crashpad 0.8.0<br>
|
||
Last updated September 4, 2015
|
||
</div>
|
||
</div>
|
||
</body>
|
||
</html>
|