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-rwxr-xr-xlib/asan/scripts/asan_device_setup31
1 files changed, 19 insertions, 12 deletions
diff --git a/lib/asan/scripts/asan_device_setup b/lib/asan/scripts/asan_device_setup
index 52794b1a441b..fdfc46f6e5b8 100755
--- a/lib/asan/scripts/asan_device_setup
+++ b/lib/asan/scripts/asan_device_setup
@@ -300,20 +300,22 @@ if [[ -n "$ASAN_RT64" ]]; then
cp "$ASAN_RT_PATH/$ASAN_RT64" "$TMPDIR/"
fi
-# FIXME: alloc_dealloc_mismatch=0 prevents a failure in libdvm startup,
-# which may or may not be a real bug (probably not).
-ASAN_OPTIONS=start_deactivated=1,alloc_dealloc_mismatch=0,malloc_context_size=0
+ASAN_OPTIONS=start_deactivated=1,malloc_context_size=0
-function generate_zygote_wrapper { # from, to, asan_rt
+# The name of a symlink to libclang_rt.asan-$ARCH-android.so used in LD_PRELOAD.
+# The idea is to have the same name in lib and lib64 to keep it from falling
+# apart when a 64-bit process spawns a 32-bit one, inheriting the environment.
+ASAN_RT_SYMLINK=symlink-to-libclang_rt.asan
+
+function generate_zygote_wrapper { # from, to
local _from=$1
local _to=$2
- local _asan_rt=$3
if [[ PRE_L -eq 0 ]]; then
# LD_PRELOAD parsing is broken in N if it starts with ":". Luckily, it is
# unset in the system environment since L.
- local _ld_preload=$_asan_rt
+ local _ld_preload=$ASAN_RT_SYMLINK
else
- local _ld_preload=\$LD_PRELOAD:$_asan_rt
+ local _ld_preload=\$LD_PRELOAD:$ASAN_RT_SYMLINK
fi
cat <<EOF >"$TMPDIR/$_from"
#!/system/bin/sh-from-zygote
@@ -342,18 +344,18 @@ if [[ -f "$TMPDIR/app_process64" ]]; then
mv "$TMPDIR/app_process32" "$TMPDIR/app_process32.real"
mv "$TMPDIR/app_process64" "$TMPDIR/app_process64.real"
fi
- generate_zygote_wrapper "app_process32" "/system/bin/app_process32.real" "$ASAN_RT"
- generate_zygote_wrapper "app_process64" "/system/bin/app_process64.real" "$ASAN_RT64"
+ generate_zygote_wrapper "app_process32" "/system/bin/app_process32.real"
+ generate_zygote_wrapper "app_process64" "/system/bin/app_process64.real"
else
# A 32-bit device.
- generate_zygote_wrapper "app_process.wrap" "/system/bin/app_process32" "$ASAN_RT"
+ generate_zygote_wrapper "app_process.wrap" "/system/bin/app_process32"
fi
# General command-line tool wrapper (use for anything that's not started as
# zygote).
cat <<EOF >"$TMPDIR/asanwrapper"
#!/system/bin/sh
-LD_PRELOAD=$ASAN_RT \\
+LD_PRELOAD=$ASAN_RT_SYMLINK \\
exec \$@
EOF
@@ -361,7 +363,7 @@ EOF
if [[ -n "$ASAN_RT64" ]]; then
cat <<EOF >"$TMPDIR/asanwrapper64"
#!/system/bin/sh
-LD_PRELOAD=$ASAN_RT64 \\
+LD_PRELOAD=$ASAN_RT_SYMLINK \\
exec \$@
EOF
@@ -412,12 +414,17 @@ if ! ( cd "$TMPDIRBASE" && diff -qr old/ new/ ) ; then
install "$TMPDIR/app_process64.real" /system/bin 755 $CTX
install "$TMPDIR/asanwrapper" /system/bin 755
install "$TMPDIR/asanwrapper64" /system/bin 755
+
+ adb_shell ln -s $ASAN_RT /system/lib/$ASAN_RT_SYMLINK
+ adb_shell ln -s $ASAN_RT64 /system/lib64/$ASAN_RT_SYMLINK
else
install "$TMPDIR/$ASAN_RT" /system/lib 644
install "$TMPDIR/app_process32" /system/bin 755 $CTX
install "$TMPDIR/app_process.wrap" /system/bin 755 $CTX
install "$TMPDIR/asanwrapper" /system/bin 755 $CTX
+ adb_shell ln -s $ASAN_RT /system/lib/$ASAN_RT_SYMLINK
+
adb_shell rm /system/bin/app_process
adb_shell ln -s /system/bin/app_process.wrap /system/bin/app_process
fi