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android / trusty / lk / common / f45d4395e68c9d5bae53da13537f54c6c929bf50
commitf45d4395e68c9d5bae53da13537f54c6c929bf50[log] [tgz]
authorArve Hjønnevåg <arve@android.com>Thu Aug 20 15:11:17 2020 -0700
committerArve Hjønnevåg <arve@android.com>Mon Nov 09 12:07:51 2020 -0800
treecf2a15cc99d5a1bee66ed05498ab4137841a37b7
parentf80971a1b074ebcebc2e2cdc64d492f18a010225 [diff]
[kernel][thread] Add guard page around most kernel stacks

Allocate kernel stacks with vmm_alloc instead of malloc to get guard
pages.

The initial thread for each cpu, which later becomes idle threads, are
not affected by this, and will still run without guard pages.

Bug: 165825378
Change-Id: I103bcfdc330d88ac0957e3dad75aa232dc20e084
1 file changed
tree: cf2a15cc99d5a1bee66ed05498ab4137841a37b7
  1. app/
  2. arch/
  3. dev/
  4. external/
  5. hosttests/
  6. include/
  7. kernel/
  8. lib/
  9. make/
  10. platform/
  11. target/
  12. tools/
  13. top/
  14. .clang-format
  15. .gitignore
  16. build-config-kerneltests
  17. engine.mk
  18. kerneltests-inc.mk
  19. LICENSE
  20. lk_inc.mk.example
  21. makefile
  22. README.md
README.md

LK

The LK embedded kernel. An SMP-aware kernel designed for small systems.

See https://github.com/littlekernel/lk for the latest version.

See https://github.com/littlekernel/lk/wiki for documentation.

Builds

Build Status

To build and test for ARM on linux

  1. install or build qemu. v2.4 and above is recommended.
  2. install gcc for embedded arm (see note 1)
  3. run scripts/do-qemuarm (from the lk directory)
  4. you should see ‘welcome to lk/MP’

This will get you a interactive prompt into LK which is running in qemu arm machine ‘virt’ emulation. type ‘help’ for commands.

note 1: for ubuntu: sudo apt-get install gcc-arm-none-eabi or fetch a prebuilt toolchain from http://newos.org/toolchains/arm-eabi-5.3.0-Linux-x86_64.tar.xz