diff options
| author | John Ogness <john.ogness@linutronix.de> | 2017-12-19 10:59:40 +0100 |
|---|---|---|
| committer | John Ogness <john.ogness@linutronix.de> | 2017-12-19 10:59:40 +0100 |
| commit | 270520b4a2eac8725c8575c3180964289722e191 (patch) | |
| tree | d9512cd96d0c52e14293c3f8bc19fd168ee14025 /schulung_tools/mtrace/mtrace.patch | |
| parent | 27209bb802048f4803d9cd9a5c2f99d613986446 (diff) | |
schulung_tools: add various demos and tools
Different tools have been used by various trainers as demos. Put
all these into master so they are available to all trainers.
ipc_pipe: ipc demo using pipes
ipc_shm: ipc demo using shared memory
libduma: source and instructions for compiling libduma
matrix: demo of good and bad cache access
mtrace: patch and infos for using mtrace with ASLR
rtex: demo of handling page faults
Signed-off-by: John Ogness <john.ogness@linutronix.de>
Diffstat (limited to 'schulung_tools/mtrace/mtrace.patch')
| -rw-r--r-- | schulung_tools/mtrace/mtrace.patch | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/schulung_tools/mtrace/mtrace.patch b/schulung_tools/mtrace/mtrace.patch new file mode 100644 index 0000000..874388c --- /dev/null +++ b/schulung_tools/mtrace/mtrace.patch @@ -0,0 +1,25 @@ +Patch mtrace to deal with new ASLR issues. +--- a/mtrace 2017-06-15 20:17:14.000000000 +0100 ++++ b/mtrace 2017-12-13 12:09:31.584089486 +0000 +@@ -75,10 +75,10 @@ if ($#ARGV == 0) { + } else { + $prog = "./$binary"; + } +- if (open (LOCS, "env LD_TRACE_LOADED_OBJECTS=1 $prog |")) { ++ if (open (LOCS, "env LD_TRACE_PRELINKING=1 $prog |")) { + while (<LOCS>) { + chop; +- if (/^.*=> (.*) .(0x[0123456789abcdef]*).$/) { ++ if (/^.*=> (.*) .(0x[0123456789abcdef]*),.*/) { + $locs{$1} = $2; + } + } +@@ -111,7 +111,7 @@ sub location { + my $searchaddr; + return $cache{$addr} if (exists $cache{$addr}); + if ($locs{$prog} ne "") { +- $searchaddr = sprintf "%#x", $addr - $locs{$prog}; ++ $searchaddr = sprintf "%#x", hex($addr) - hex($locs{$prog}); + } else { + $searchaddr = $addr; + $prog = $binary; |