commit | a57615057e691ac9f9dac6ce7492bb4623b9d2be | [log] [tgz] |
---|---|---|
author | Wyatt Hepler <hepler@pigweed.infra.roller.google.com> | Tue Sep 27 20:06:54 2022 +0000 |
committer | CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com> | Tue Sep 27 20:06:54 2022 +0000 |
tree | 3f3f6a453c659865165c10868d203e2e667ae611 | |
parent | 985579de0b168cc28a40a88c04eb734885968fdb [diff] |
[roll third_party/pigweed] pw_toolchain: Implement Newlib OS interface functions Starting in arm-none-eabi-gcc 11.3, the compiler outputs warnings if Newlib OS interface functions are called but not implemented. A default that returns an error is used in that case. The Newlib OS interface is documented at https://sourceware.org/newlib/libc.html#Stubs. Most of the Newlib OS interface functions should never be called in Pigweed. Implement these functions but have them invoke an undefined function to force a linker error if they are used. In addition to implementing the OS interface, wrap a few unnecessary Newlib functions that would otherwise cause several OS interface functions to be linked in. Abort if these functions are called. Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/112311 https://pigweed.googlesource.com/pigweed/pigweed third_party/pigweed Rolled-Commits: 71e8310be2e24d6..919d1831a6f337e Roller-URL: https://ci.chromium.org/b/8801839379394128945 GitWatcher: ignore CQ-Do-Not-Cancel-Tryjobs: true Change-Id: I49d60a3053b33ed9ea91446a513e9f47c2303037 Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/112262 Bot-Commit: Pigweed Integration Roller <pigweed-integration-roller@pigweed.google.com.iam.gserviceaccount.com> Commit-Queue: Pigweed Integration Roller <pigweed-integration-roller@pigweed.google.com.iam.gserviceaccount.com>
This repository contains experimental pigweed modules.
Clone this repo with --recursive
to get all required submodules.
git clone --recursive https://pigweed.googlesource.com/pigweed/experimental
This will pull the Pigweed source repository into third_party/pigweed
. If you already cloned but forgot to --recursive
run git submodule update --init
to pull all submodules.
The //pw_graphics folder contains some libraries for drawing to an RGB565 framebuffer and displaying it on various platforms.
The demo applications that make use of these libraries are:
First time setup:
git clone --recursive https://pigweed.googlesource.com/pigweed/experimental cd experimental . ./bootstrap.sh pw package install imgui pw package install glfw pw package install stm32cube_f4 pw package install pico_sdk
Compile:
gn gen out --export-compile-commands --args=" dir_pw_third_party_stm32cube_f4=\"$PW_PROJECT_ROOT/environment/packages/stm32cube_f4\" " ninja -C out
Flash:
openocd -f third_party/pigweed/targets/stm32f429i_disc1/py/stm32f429i_disc1_utils/openocd_stm32f4xx.cfg -c "program out/stm32f429i_disc1_stm32cube_debug/obj/applications/terminal_display/bin/terminal_demo.elf verify reset exit"
Compile:
gn gen out --export-compile-commands --args=" dir_pw_third_party_imgui=\"$PW_PROJECT_ROOT/environment/packages/imgui\" dir_pw_third_party_glfw=\"$PW_PROJECT_ROOT/environment/packages/glfw\" " ninja -C out
Run:
out/host_debug/obj/applications/terminal_display/bin/terminal_demo
Working displays:
Compile:
gn gen out --export-compile-commands --args=" PICO_SRC_DIR=\"$PW_PROJECT_ROOT/environment/packages/pico_sdk\" " ninja -C out
Flash:
Using a uf2 file:
./out/host_debug/obj/targets/rp2040/bin/elf2uf2 ./out/rp2040/obj/applications/terminal_display/bin/terminal_demo.elf ./out/rp2040/obj/applications/terminal_display/bin/terminal_demo.uf2
Copy ./out/rp2040/obj/applications/terminal_display/bin/terminal_demo.uf2
to your Pi Pico.
Using a Pico Probe and openocd:
This requires installing the Raspberry Pi foundation's OpenOCD fork for the Pico probe. More details including how to connect the two Pico boards is available at Raspberry Pi Pico and RP2040 - C/C++ Part 2: Debugging with VS Code
Install RaspberryPi's OpenOCD Fork:
git clone https://github.com/raspberrypi/openocd.git \ --branch picoprobe \ --depth=1 \ --no-single-branch \ openocd-picoprobe cd openocd-picoprobe ./bootstrap ./configure --enable-picoprobe --prefix=$HOME/apps/openocd --disable-werror make -j2 make install
Setup udev rules (Linux only):
cat <<EOF > 49-picoprobe.rules SUBSYSTEMS=="usb", ATTRS{idVendor}=="2e8a", ATTRS{idProduct}=="0004", MODE:="0666" KERNEL=="ttyACM*", ATTRS{idVendor}=="2e8a", ATTRS{idProduct}=="0004", MODE:="0666" EOF sudo cp 49-picoprobe.rules /usr/lib/udev/rules.d/49-picoprobe.rules sudo udevadm control --reload-rules
Flash the Pico:
~/apps/openocd/bin/openocd -f ~/apps/openocd/share/openocd/scripts/interface/picoprobe.cfg -f ~/apps/openocd/share/openocd/scripts/target/rp2040.cfg -c 'program out/rp2040/obj/applications/terminal_display/bin/terminal_demo.elf verify reset exit'