From 90f568a14e3a233233376974aa9cadc86a5d13c4 Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk@google.com>
Date: Thu, 20 May 2021 23:16:10 -0700
Subject: f2fs_utils: support -O ro

"-O ro" sets the filesystem as readonly.

Bug: 171942852
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
Change-Id: Ia561618557e4e72bcc702b1e1d954a380a90d1b2
---
 f2fs_utils/mkf2fsuserimg.sh | 63 ++++++++++++++++++++++++++++++++-------------
 1 file changed, 45 insertions(+), 18 deletions(-)

diff --git a/f2fs_utils/mkf2fsuserimg.sh b/f2fs_utils/mkf2fsuserimg.sh
index 522f9ea4..013ff543 100755
--- a/f2fs_utils/mkf2fsuserimg.sh
+++ b/f2fs_utils/mkf2fsuserimg.sh
@@ -8,7 +8,7 @@ Usage:
 ${0##*/} OUTPUT_FILE SIZE
          [-S] [-C FS_CONFIG] [-f SRC_DIR] [-D PRODUCT_OUT]
          [-s FILE_CONTEXTS] [-t MOUNT_POINT] [-T TIMESTAMP]
-         [-L LABEL] [--prjquota] [--casefold] [--compression]
+         [-L LABEL] [--prjquota] [--casefold] [--compression] [--readonly]
          [--sldc <num> [sload compression sub-options]]
 <num>: number of the sload compression args, e.g.  -a LZ4 counts as 2
        when sload compression args are not given, <num> must be 0,
@@ -95,6 +95,11 @@ if [[ "$1" == "--compression" ]]; then
   MKFS_OPTS+=" -O compression,extra_attr"
   shift;
 fi
+if [[ "$1" == "--readonly" ]]; then
+  MKFS_OPTS+=" -O ro"
+  READONLY=1
+  shift;
+fi
 
 if [[ "$1" == "--sldc" ]]; then
   if [ -z "$COMPRESS_SUPPORT" ]; then
@@ -122,32 +127,54 @@ if [ -z $SIZE ]; then
   exit 2
 fi
 
-if [ "$SPARSE_IMG" = "false" ]; then
+function _truncate()
+{
+  if [ "$SPARSE_IMG" = "true" ]; then
+    return
+  fi
+
   TRUNCATE_CMD="truncate -s $SIZE $OUTPUT_FILE"
   echo $TRUNCATE_CMD
   $TRUNCATE_CMD
   if [ $? -ne 0 ]; then
     exit 3
   fi
-fi
+}
 
-MAKE_F2FS_CMD="make_f2fs -g android $MKFS_OPTS $OUTPUT_FILE"
-echo $MAKE_F2FS_CMD
-$MAKE_F2FS_CMD
-if [ $? -ne 0 ]; then
-  if [ "$SPARSE_IMG" = "false" ]; then
+function _build()
+{
+  MAKE_F2FS_CMD="make_f2fs -g android $MKFS_OPTS $OUTPUT_FILE"
+  echo $MAKE_F2FS_CMD
+  $MAKE_F2FS_CMD
+  if [ $? -ne 0 ]; then
+    if [ "$SPARSE_IMG" = "false" ]; then
+      rm -f $OUTPUT_FILE
+    fi
+    exit 4
+  fi
+
+  SLOAD_F2FS_CMD="sload_f2fs $SLOAD_OPTS $OUTPUT_FILE"
+  echo $SLOAD_F2FS_CMD
+  MB_SIZE=`$SLOAD_F2FS_CMD | grep "Max image size" | awk '{print $5}'`
+  # allow 1: Filesystem errors corrected
+  ret=$?
+  if [ $ret -ne 0 ] && [ $ret -ne 1 ]; then
     rm -f $OUTPUT_FILE
+    exit 4
   fi
-  exit 4
-fi
+  SIZE=$(((MB_SIZE + 6) * 1024 * 1024))
+}
+
+_truncate
+_build
 
-SLOAD_F2FS_CMD="sload_f2fs $SLOAD_OPTS $OUTPUT_FILE"
-echo $SLOAD_F2FS_CMD
-$SLOAD_F2FS_CMD
-# allow 1: Filesystem errors corrected
-ret=$?
-if [ $ret -ne 0 ] && [ $ret -ne 1 ]; then
-  rm -f $OUTPUT_FILE
-  exit 4
+# readonly + compress can reduce the image
+if [ "$READONLY" ] && [ "$COMPRESS_SUPPORT" ]; then
+  if [ "$SPARSE_IMG" = "true" ]; then
+    MKFS_OPTS+=" -S $SIZE"
+    rm -f $OUTPUT_FILE && touch $OUTPUT_FILE
+  fi
+  _truncate
+  _build
 fi
 exit 0
-- 
cgit v1.2.3


From ac2789745fef896809548b1c1e894c1e3a15d68d Mon Sep 17 00:00:00 2001
From: Pirama Arumuga Nainar <pirama@google.com>
Date: Wed, 19 May 2021 10:30:01 -0700
Subject: Remove at_quick_exit call

This doesn't help with coverage for ART tools.

Bug: http://b/186576313
Test: N/A
Change-Id: I5c2ab63485f2b07d9e026492835072ab85dcccfb
(cherry picked from commit 91e13733870df7f6df8aa68d0b17711ba98c3c5a)
---
 toolchain-extras/profile-clang-extras.cpp | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/toolchain-extras/profile-clang-extras.cpp b/toolchain-extras/profile-clang-extras.cpp
index 4e5aca97..89c18b2a 100644
--- a/toolchain-extras/profile-clang-extras.cpp
+++ b/toolchain-extras/profile-clang-extras.cpp
@@ -36,16 +36,6 @@ static void llvm_signal_handler(__unused int signum) {
   }
 }
 
-#if __ANDROID_API__ >= 21
-void writeFileWithoutReturn() {
-  __llvm_profile_write_file();
-}
-
-__attribute__((constructor)) void register_quick_exit_handler(void) {
-  at_quick_exit(writeFileWithoutReturn);
-}
-#endif  // #if __ANDROID_API__ >= 21
-
 __attribute__((weak)) int init_profile_extras_once = 0;
 
 // Initialize libprofile-extras:
-- 
cgit v1.2.3