From 297abcadcb3005b0765987a5f3aedfed4d67f1c1 Mon Sep 17 00:00:00 2001
From: Dima Zavin <dima@android.com>
Date: Wed, 21 Mar 2012 23:37:46 -0700
Subject: [PATCH 1/2] displayhardware: fix not obeying ro.sf.lcd_density when
 specified

Change-Id: I71efd6aebfdb0323b07327f5e448a5cb5eb0fad6
Signed-off-by: Dima Zavin <dima@android.com>
---
 .../DisplayHardware/DisplayHardware.cpp        | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/services/surfaceflinger/DisplayHardware/DisplayHardware.cpp b/services/surfaceflinger/DisplayHardware/DisplayHardware.cpp
index 3a0ff7156..92d619d5b 100644
--- a/services/surfaceflinger/DisplayHardware/DisplayHardware.cpp
+++ b/services/surfaceflinger/DisplayHardware/DisplayHardware.cpp
@@ -245,27 +245,33 @@ void DisplayHardware::init(uint32_t dpy)
             mFlags |= BUFFER_PRESERVED;
         }
     }
-    
+
+    /* use the xdpi as our density baseline */
+    mDensity = mDpiX;
+
     /* Read density from build-specific ro.sf.lcd_density property
      * except if it is overridden by qemu.sf.lcd_density.
      */
     if (property_get("qemu.sf.lcd_density", property, NULL) <= 0) {
         if (property_get("ro.sf.lcd_density", property, NULL) <= 0) {
             if (mDpiX && mDpiY) {
-                ALOGI("Using density info from display: xdpi=%d ydpi=%d\n",
+                ALOGI("Using density info from display: xdpi=%.1f ydpi=%.1f\n",
                       mDpiX, mDpiY);
             } else {
                 ALOGW("No display dpi and ro.sf.lcd_density not defined, using 160 dpi by default.");
-                mDpiX = mDpiY = 160;
+                mDpiX = mDpiY = mDensity = 160;
             }
+        } else {
+            /* force density to what the build requested */
+            mDensity = atoi(property);
         }
     } else {
         /* for the emulator case, reset the dpi values too */
-        mDpiX = mDpiY = atoi(property);
+        mDpiX = mDpiY = mDensity = atoi(property);
     }
 
-    /* use the xdpi as our density baseline */
-    mDensity = mDpiX * (1.0f / 160.0f);
+    /* set the actual density scale */
+    mDensity *= (1.0f / 160.0f);
 
     /*
      * Create our OpenGL ES context

From 0fddef34af3d74b6fa12a540a1b17eda18a8a6a9 Mon Sep 17 00:00:00 2001
From: Nick Kralevich <nnk@google.com>
Date: Fri, 6 Apr 2012 09:31:28 -0700
Subject: [PATCH 2/2] Ensure that /data/anr/traces.txt is world-writable

The umask changed for init. We have to force /data/anr to be world
readble and /data/anr/traces.txt to be world writable so dalvik
processes can write to it.

Hopefully this is a short term change while we investigate tightening
up these permissions.

Bug: 6300296
Change-Id: Iacb4c9f1bc69d2ac679697f9cf9a52694f888489
---
 cmds/dumpstate/utils.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/cmds/dumpstate/utils.c b/cmds/dumpstate/utils.c
index 0d5ab9019..25505f818 100644
--- a/cmds/dumpstate/utils.c
+++ b/cmds/dumpstate/utils.c
@@ -375,6 +375,7 @@ const char *dump_vm_traces() {
         *slash = '\0';
         if (!mkdir(anr_traces_dir, 0775)) {
             chown(anr_traces_dir, AID_SYSTEM, AID_SYSTEM);
+            chmod(anr_traces_dir, 0775);
         } else if (errno != EEXIST) {
             fprintf(stderr, "mkdir(%s): %s\n", anr_traces_dir, strerror(errno));
             return NULL;
@@ -387,6 +388,12 @@ const char *dump_vm_traces() {
         fprintf(stderr, "%s: %s\n", traces_path, strerror(errno));
         return NULL;
     }
+    int chmod_ret = fchmod(fd, 0666);
+    if (chmod_ret < 0) {
+        fprintf(stderr, "fchmod on %s failed: %s\n", traces_path, strerror(errno));
+        close(fd);
+        return NULL;
+    }
     close(fd);
 
     /* walk /proc and kill -QUIT all Dalvik processes */