Commit graph

9 commits

Author SHA1 Message Date
Doug Zongker
66f5ce387a installer for new block OTA system
Bug: 16984795
Change-Id: I90f958446baed83dec658de2430c8fc5e9c3047e
2014-08-19 13:40:15 -07:00
Doug Zongker
a1bc148c7c remove 'retouch' ASLR support
Older versions of android supported an ASLR system where binaries were
randomly twiddled at OTA install time.  Remove support for this; we
now use the ASLR support in the linux kernel.

Change-Id: I8348eb0d6424692668dc1a00e2416fbef6c158a2
2014-02-13 15:18:19 -08:00
Doug Zongker
044a0b4d49 recovery: try to write EMMC partitions more reliably
Nexus 4 has flash errors that manifest during large writes (eg, of the
radio partition).  Writes of some blocks seem to be dropped silently,
without any errors being returned to the user level.

Make two changes to the partition-writing code:

- break it up into 1MB writes instead of writing partitions with a
  single fwrite() call.  Pause for 50ms in between every chunk.

- read the partition back after writing and verify that we read what
  we wrote.  Drop caches before reading so we (hopefully) are reading
  off the actual flash and not some cache.

Neither of these should be necessary.

Bug: 9602014

Change-Id: Ice2e24dd4c11f1a57968277b5eb1468c772f6f63
2013-07-08 12:59:22 -07:00
Doug Zongker
a3ccba6d31 add bonus data feature to imgdiff/imgpatch/applypatch
The bonus data option lets you give an additional blob of uncompressed
data to be used when constructing a patch for chunk #1 of an image.
The same blob must be available at patch time, and can be passed to
the command-line applypatch tool (this feature is not accessible from
edify scripts).

This will be used to reduce the size of recovery-from-boot patches by
storing parts of the recovery ramdisk (the UI images) on the system
partition.

Change-Id: Iac1959cdf7f5e4582f8d434e83456e483b64c02c
2012-08-20 15:28:02 -07:00
Doug Zongker
b07b293944 fix build
Change-Id: I44a75f5451af053778be299b23274ecce9b2db76
2012-02-28 12:07:30 -08:00
Doug Zongker
1c43c9741b fix failure to free memory
The applypatch function is somewhat sloppy about freeing memory (since
it was originally a standalone binary).  Fix some of that.

Change-Id: Ifd44d71ea189c0b5115493119fd57bc37533fd59
2012-02-28 11:07:09 -08:00
Hristo Bojinov
db314d69f0 Working ASLR implementation
Separate files for retouch functionality are in minelf/*

ASLR for shared libraries is controlled by "-a" in ota_from_target_files.
Binary files are self-contained. Retouch logic can recover from crashes.

Signed-off-by: Hristo Bojinov <hristo@google.com>
Change-Id: I76c596abf4febd68c14f9d807ac62e8751e0b1bd
2010-08-02 14:17:33 -07:00
Doug Zongker
c4351c7910 refactor applypatch and friends
Change the applypatch function to take meaningful arguments instead of
argc and argv.  Move all the parsing of arguments into main.c (for the
standalone binary) and into install.c (for the updater function).
applypatch() takes patches as Value objects, so we can pass in blobs
extracted from the package without ever writing them to temp files.

The patching code is changed to read the patch from memory instead of
a file.

A bunch of compiler warnings (mostly about signed vs unsigned types)
are fixed.

Support for the IMGDIFF1 format is dropped.  (We've been generating
IMGDIFF2 packages for some time now.)

Change-Id: I217563c500012750f27110db821928a06211323f
2010-02-22 15:30:33 -08:00
Doug Zongker
512536a54a relocate applypatch; add type system and new functions to edify
- Move applypatch to this package (from build).

- Add a rudimentary type system to edify:  instead of just returning a
  char*, functions now return a Value*, which is a struct that can
  carry different types of value (currently just STRING and BLOB).
  Convert all functions to this new scheme.

- Change the one-argument form of package_extract_file to return a
  Value of the new BLOB type.

- Add read_file() to load a local file and return a blob, and
  sha1_check() to test a blob (or string) against a set of possible
  sha1s.  read_file() uses the file-loading code from applypatch so it
  can read MTD partitions as well.

This is the start of better integration between applypatch and the
rest of edify.

b/2361316 - VZW Issue PP628: Continuous reset to Droid logo:
            framework-res.apk update failed (CR LIBtt59130)

Change-Id: Ibd038074749a4d515de1f115c498c6c589ee91e5
2010-02-18 14:22:12 -08:00