|
Revision tags: llvmorg-18.1.8, llvmorg-18.1.7, llvmorg-18.1.6, llvmorg-18.1.5, llvmorg-18.1.4 |
|
| #
2620ccc3 |
| 12-Apr-2024 |
Kalesh Singh <kaleshsingh96@gmail.com> |
ANDROID: x86_64: Set default max-page-size to 16kB (#87413)
Android now supports both 4kB and 16kB page sizes. The vast majority of
android apps are developed on x86_64 machines. In order to provid
ANDROID: x86_64: Set default max-page-size to 16kB (#87413)
Android now supports both 4kB and 16kB page sizes. The vast majority of
android apps are developed on x86_64 machines. In order to provide
emulators that support larger page sizes, Android emulates the page-size
in x86_64 to support testing apps for large page size support.
For this reason, update Android x86_64 ELFs default max-page-size to
16384 to support both 4kB and 16kB page-size devices.
Increase max-page-size raises concerns of increased disk space and extra
VMA slab memory.
In Android, RO partitions use sparse images, so that the holes on ELFs
don't allocate blocks on disk; and PackageManager ensures to punch holes
in ELF-paddings on the /data partition when apps are installed.
Extra VMA slab memory is addressed by the bionic loader, which extends
segment VMAs to cover the gaps between consecutive segment mappings, to
avoid the extra VMAs needed for the gap PROT_NONE mappings (---p). This
optimization is done in the crt_pad_segment note [1] is present in the
ELF.
[1]
https://cs.android.com/android/platform/superproject/main/+/189e480390ef13199d59e1fb54078e8b78ea6f79:bionic/libc/arch-common/bionic/crt_pad_segment.S
---------
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Co-authored-by: Kalesh Singh <kaleshsingh@google.com>
show more ...
|
|
Revision tags: llvmorg-18.1.3, llvmorg-18.1.2, llvmorg-18.1.1 |
|
| #
856ce495 |
| 29-Feb-2024 |
Kalesh Singh <kaleshsingh96@gmail.com> |
ANDROID: AArch64: Change default max-page-size from 4k to 16k (#70251)
File size increase were found negligible from sparseness and zero
block compression in f2fs and ext4 (supported filesystems fo
ANDROID: AArch64: Change default max-page-size from 4k to 16k (#70251)
File size increase were found negligible from sparseness and zero
block compression in f2fs and ext4 (supported filesystems for
Android's userdata partition).
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Co-authored-by: Kalesh Singh <kaleshsingh@google.com>
show more ...
|
|
Revision tags: llvmorg-18.1.0, llvmorg-18.1.0-rc4, llvmorg-18.1.0-rc3, llvmorg-18.1.0-rc2, llvmorg-18.1.0-rc1, llvmorg-19-init, llvmorg-17.0.6, llvmorg-17.0.5, llvmorg-17.0.4, llvmorg-17.0.3, llvmorg-17.0.2, llvmorg-17.0.1, llvmorg-17.0.0, llvmorg-17.0.0-rc4, llvmorg-17.0.0-rc3, llvmorg-17.0.0-rc2, llvmorg-17.0.0-rc1, llvmorg-18-init, llvmorg-16.0.6, llvmorg-16.0.5, llvmorg-16.0.4, llvmorg-16.0.3, llvmorg-16.0.2, llvmorg-16.0.1, llvmorg-16.0.0, llvmorg-16.0.0-rc4, llvmorg-16.0.0-rc3, llvmorg-16.0.0-rc2, llvmorg-16.0.0-rc1, llvmorg-17-init, llvmorg-15.0.7, llvmorg-15.0.6, llvmorg-15.0.5, llvmorg-15.0.4, llvmorg-15.0.3, working, llvmorg-15.0.2, llvmorg-15.0.1, llvmorg-15.0.0, llvmorg-15.0.0-rc3, llvmorg-15.0.0-rc2, llvmorg-15.0.0-rc1, llvmorg-16-init |
|
| #
5c29ffda |
| 24-Jun-2022 |
Fangrui Song <i@maskray.me> |
Revert "[Driver][test] Replace ^//$ with empty string"
This reverts commit 4817b7729a1846b709ec02b98bfe11b0125f8e8f.
It caused some `^/\n` and had some objection about its readability improvement.
|
| #
4817b772 |
| 24-Jun-2022 |
Fangrui Song <i@maskray.me> |
[Driver][test] Replace ^//$ with empty string
The convention does not add //\n. Having all RUN/CHECK lines separated by //\n
makes editor movement difficult (e.g. { } in Vim).
|
|
Revision tags: llvmorg-14.0.6, llvmorg-14.0.5, llvmorg-14.0.4, llvmorg-14.0.3, llvmorg-14.0.2, llvmorg-14.0.1, llvmorg-14.0.0, llvmorg-14.0.0-rc4, llvmorg-14.0.0-rc3, llvmorg-14.0.0-rc2, llvmorg-14.0.0-rc1, llvmorg-15-init, llvmorg-13.0.1, llvmorg-13.0.1-rc3, llvmorg-13.0.1-rc2, llvmorg-13.0.1-rc1, llvmorg-13.0.0, llvmorg-13.0.0-rc4, llvmorg-13.0.0-rc3, llvmorg-13.0.0-rc2, llvmorg-13.0.0-rc1, llvmorg-14-init, llvmorg-12.0.1, llvmorg-12.0.1-rc4, llvmorg-12.0.1-rc3, llvmorg-12.0.1-rc2, llvmorg-12.0.1-rc1, llvmorg-12.0.0, llvmorg-12.0.0-rc5, llvmorg-12.0.0-rc4, llvmorg-12.0.0-rc3, llvmorg-12.0.0-rc2, llvmorg-11.1.0, llvmorg-11.1.0-rc3, llvmorg-12.0.0-rc1, llvmorg-13-init, llvmorg-11.1.0-rc2, llvmorg-11.1.0-rc1, llvmorg-11.0.1, llvmorg-11.0.1-rc2, llvmorg-11.0.1-rc1, llvmorg-11.0.0, llvmorg-11.0.0-rc6, llvmorg-11.0.0-rc5, llvmorg-11.0.0-rc4, llvmorg-11.0.0-rc3, llvmorg-11.0.0-rc2, llvmorg-11.0.0-rc1, llvmorg-12-init, llvmorg-10.0.1, llvmorg-10.0.1-rc4, llvmorg-10.0.1-rc3, llvmorg-10.0.1-rc2, llvmorg-10.0.1-rc1 |
|
| #
969b91af |
| 08-Apr-2020 |
Fangrui Song <maskray@google.com> |
[Driver] Default arm-linux-androideabi to -z max-page-size=4096
Similar to D55029. The requirement arises when discussing increasing
default max-page-size for lld ARM (D77330).
For the record, the
[Driver] Default arm-linux-androideabi to -z max-page-size=4096
Similar to D55029. The requirement arises when discussing increasing
default max-page-size for lld ARM (D77330).
For the record, the default max-page-size on the 3 commonly used linkers:
* GNU ld since 2014 (https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=7572ca8989ead4c3425a1500bc241eaaeffa2c89) defaults to 65536
* GNU gold remains 4096
* lld<=10 uses 4096. lld from 11 onwards will use 65536 (D77330)
Reviewed By: srhines, thieta
Differential Revision: https://reviews.llvm.org/D77746
show more ...
|