Dim color boxes colours
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1 changed files with 90 additions and 79 deletions
77
slides.tex
77
slides.tex
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@ -33,6 +33,12 @@
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\setbeamertemplate{navigation symbols}{}
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\setbeamertemplate{headline}{}
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\definecolor{infoboxbg}{HTML}{f3e7ac}
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\definecolor{infoboxborder}{HTML}{de9758}
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\definecolor{alertboxbg}{HTML}{ffc6c7}
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\definecolor{alertboxborder}{HTML}{ea2f61}
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\newcommand{\cmark}{\color{OliveGreen}\ding{52}}
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\newcommand{\xmark}{\color{BrickRed}\ding{56}}
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@ -283,8 +289,10 @@ Segmentation fault.
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\end{frame}
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\begin{frame}{What does this imply?}
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Your compiler actually generates codes for \alert{two machines}:\\
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your processor and the DWARF VM\@.
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\begin{center}
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\textbf{Your compiler generates code for \alert{two machines}:\\
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your processor and the DWARF VM\@.}
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\end{center}
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\vfill{}
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\begin{columns}
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@ -310,6 +318,8 @@ Segmentation fault.
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\end{center}
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\end{column}
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\pause{}
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\begin{column}{0.55\textwidth}
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\begin{itemize}
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\item[$\implies$] \alert{Cumbersome} to generate for the
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@ -325,6 +335,7 @@ Segmentation fault.
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\end{column}
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\end{columns}
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\vfill{}
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\end{frame}
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\begin{frame}
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@ -332,7 +343,7 @@ Segmentation fault.
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\only<2>{
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\begin{textblock*}{0.60\textwidth}[0.5,0.5](0.5\paperwidth,0.5\paperheight)%
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\begin{tcolorbox}[halign=center, colframe=OliveGreen, colback=YellowGreen]
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\begin{tcolorbox}[halign=center, colframe=infoboxborder, colback=infoboxbg]
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In \prog{glibc}, \prog{lowlevellock.h}:
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\alert{off by one error in unwinding data}.
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@ -343,7 +354,7 @@ Segmentation fault.
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\only<3->{
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\begin{textblock*}{0.90\textwidth}[0.5,0](0.5\paperwidth,0.10\paperheight)%
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\begin{tcolorbox}[halign=center, colframe=red, colback=Lavender]
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\begin{tcolorbox}[halign=center, colframe=alertboxborder, colback=alertboxbg]
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\bf \LARGE
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Complex \,\& \,slow
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\end{tcolorbox}
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@ -352,7 +363,7 @@ Segmentation fault.
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\only<4->{
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\begin{textblock*}{0.90\textwidth}[0.5,0](0.5\paperwidth,0.30\paperheight)%
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\begin{tcolorbox}[halign=center, colframe=red, colback=Lavender]
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\begin{tcolorbox}[halign=center, colframe=alertboxborder, colback=alertboxbg]
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\LARGE
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\textbf{Pervasive:}\\ relied upon by profilers, debuggers,
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aaand\ldots{}
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@ -363,26 +374,26 @@ Segmentation fault.
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\end{tcolorbox}
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\end{textblock*}
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}
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\end{frame}
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\end{frame}
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\newcommand{\LinusMailOne}{
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\newcommand{\LinusMailOne}{
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``Sorry, but last time was too f\dots painful. The whole (and
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only) point of unwinders is to make debugging easy
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when a bug occurs. But \alert{the dwarf unwinder had bugs}
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itself, or \alert{our dwarf information had bugs}, and in either
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case it actually turned several trivial bugs into a \alert{total
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undebuggable hell}.''
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}
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\newcommand{\LinusMailTwo}{
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}
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\newcommand{\LinusMailTwo}{
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``If you can \alert{mathematically prove that the unwinder is
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correct} — even in the presence of bogus and actively
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incorrect unwinding information — and never ever
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follows a bad pointer, \alert{I’ll reconsider}.''
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}
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\newcommand{\LinusSource}{
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}
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\newcommand{\LinusSource}{
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\hfill ---~Linus Torvalds, 2012
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}
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\begin{frame}
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}
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\begin{frame}
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\begin{columns}
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\begin{column}{0.75\textwidth}
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\LinusMailOne{}
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@ -411,42 +422,42 @@ Segmentation fault.
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\vspace{1em}
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\LinusSource{}
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}
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\end{frame}
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\end{frame}
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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\section{Correctness by construction:\\*\textbf{synthesis of unwinding tables}}
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\sectiontitleframe{}
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\section{Correctness by construction:\\*\textbf{synthesis of unwinding tables}}
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\sectiontitleframe{}
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\newcommand{\tblrowval}[4]{#1 & #2 & \only<2->{#3} & \only<2->{#4} \\}
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\newcommand{\blknote}[1]
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\newcommand{\tblrowval}[4]{#1 & #2 & \only<2->{#3} & \only<2->{#4} \\}
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\newcommand{\blknote}[1]
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{\begin{block}{}
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\centering\large
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#1
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\end{block}}
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\newcommand{\blklnote}[1]
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\newcommand{\blklnote}[1]
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{\begin{block}{}
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\large
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#1
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\end{block}}
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\newcommand{\tblhl}{\rowcolor{Tan}}
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\newcommand{\tblhl}{\rowcolor{Tan}}
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\begin{frame}
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\begin{frame}
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\newcommand{\firsttblrows}{
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\tblrowval{\hspace{-2ex}<{\bf foo}>:}{}{\textbf{CFA}}{\textbf{ra}}
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\rowonly<4>{\tblhl{}} \tblrowval{push}{\%r15}{rsp+8}{c-8}
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\rowonly<5>{\tblhl{}} \tblrowval{push}{\%r14}{rsp+16}{c-8}
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\rowonly<6>{\tblhl{}} \tblrowval{mov}{\$0x3,\%eax}{rsp+24}{c-8}
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\rowonly<7>{\tblhl{}} \tblrowval{push}{\%r13}{rsp+24}{c-8}
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\tblrowval{push}{\%r12}{rsp+32}{c-8}
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\tblrowval{push}{\%rbp}{rsp+40}{c-8}
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\tblrowval{push}{\%rbx}{rsp+48}{c-8}
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\tblrowval{sub}{\$0x68,\%rsp}{rsp+56}{c-8}
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}
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\tblrowval{\hspace{-2ex}<{\bf foo}>:}{}{\textbf{CFA}}{\textbf{ra}}
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\rowonly<4>{\tblhl{}} \tblrowval{push}{\%r15}{rsp+8}{c-8}
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\rowonly<5>{\tblhl{}} \tblrowval{push}{\%r14}{rsp+16}{c-8}
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\rowonly<6>{\tblhl{}} \tblrowval{mov}{\$0x3,\%eax}{rsp+24}{c-8}
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\rowonly<7>{\tblhl{}} \tblrowval{push}{\%r13}{rsp+24}{c-8}
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\tblrowval{push}{\%r12}{rsp+32}{c-8}
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\tblrowval{push}{\%rbp}{rsp+40}{c-8}
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\tblrowval{push}{\%rbx}{rsp+48}{c-8}
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\tblrowval{sub}{\$0x68,\%rsp}{rsp+56}{c-8}
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}
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{\only<3>{
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\begin{textblock*}{\textwidth}[0.5,0.5](0.5\paperwidth,0.5\paperheight)%
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\begin{tcolorbox}[halign=center, colframe=red, colback=Lavender]
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\begin{tcolorbox}[halign=center, colframe=alertboxborder, colback=alertboxbg]
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\large
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\alert{\bf Assumptions}
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\vspace{0.6em}
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\end{itemize}
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\vspace{1em}
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\begin{tcolorbox}[halign=center, colframe=OliveGreen, colback=YellowGreen]
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\begin{tcolorbox}[halign=center, colframe=infoboxborder, colback=infoboxbg]
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\large
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Implemented on top of CMU's \prog{BAP}
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\end{tcolorbox}
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