zig-p4: pure-Zig ESP32-P4 toolchain

build.zig generates the linker script and drives Zig's own LLD; tools/image.zig
turns the ELF into a flashable image and tools/{rom,serial}.zig speak the mask
ROM loader over the UART. No CMake, ninja, idf.py, esptool, or external linker.

src/soc.zig is a comptime register model over ESP-IDF's own *_reg.h headers;
src/hal/ adds peripheral sequences; src/io/ implements std.Io for the chip;
src/oracle/ diffs this HAL against ESP-IDF's on the die.

1 files changed, 171 insertions, 0 deletions

diff --git a/src/net/hosted/include_dirs.txt b/src/net/hosted/include_dirs.txt
new file mode 100644
index 0000000..75ee2d3
--- /dev/null
+++ b/src/net/hosted/include_dirs.txt
@@ -0,0 +1,171 @@
+# Include directories ESP-Hosted's C needs, in order.
+#
+# Provenance: extracted from the -I flags ESP-IDF v6.0.2 used to compile
+# host/drivers/transport/transport_drv.c in 02-esp32p4-m3-radio/build/compile_commands.json -
+# the build that worked on this board. Order is IDF's and matters: esp_wifi_remote's
+# idf_v6.0/include/injected must precede components/esp_wifi/include, because a host with no
+# radio needs the injected Wi-Fi types rather than the real ones.
+#
+# IDF/  -> relative to the ESP-IDF checkout
+# MC/   -> relative to 02-esp32p4-m3-radio (the managed_components tree)
+#
+# The one path dropped from IDF's list is build/config, the generated Kconfig header. This
+# project supplies its own copy as src/net/hosted/sdkconfig.h.
+MC/managed_components/espressif__esp_hosted/host
+MC/managed_components/espressif__esp_hosted/host/api/include
+MC/managed_components/espressif__esp_hosted/host/drivers/transport
+MC/managed_components/espressif__esp_hosted/host/drivers/transport/spi
+MC/managed_components/espressif__esp_hosted/host/drivers/transport/sdio
+MC/managed_components/espressif__esp_hosted/host/drivers/serial
+MC/managed_components/espressif__esp_hosted/host/utils
+MC/managed_components/espressif__esp_hosted/host/api/priv
+MC/managed_components/espressif__esp_hosted/host/drivers/rpc/core
+MC/managed_components/espressif__esp_hosted/host/drivers/rpc/slaveif
+MC/managed_components/espressif__esp_hosted/host/drivers/rpc/wrap
+MC/managed_components/espressif__esp_hosted/host/drivers/virtual_serial_if
+MC/managed_components/espressif__esp_hosted/common
+MC/managed_components/espressif__esp_hosted/common/log
+MC/managed_components/espressif__esp_hosted/common/rpc
+MC/managed_components/espressif__esp_hosted/common/transport
+MC/managed_components/espressif__esp_hosted/common/protobuf-c
+MC/managed_components/espressif__esp_hosted/common/proto
+MC/managed_components/espressif__esp_hosted/common/mempool/include
+MC/managed_components/espressif__esp_hosted/common/utils
+MC/managed_components/espressif__esp_hosted/host/drivers/bt
+MC/managed_components/espressif__esp_hosted/host/drivers/power_save
+MC/managed_components/espressif__esp_hosted/host/port/esp/freertos/include
+IDF/components/esp_libc/platform_include
+IDF/components/freertos/config/include
+IDF/components/freertos/config/include/freertos
+IDF/components/freertos/config/riscv/include
+IDF/components/freertos/FreeRTOS-Kernel/include
+IDF/components/freertos/FreeRTOS-Kernel/portable/riscv/include
+IDF/components/freertos/FreeRTOS-Kernel/portable/riscv/include/freertos
+IDF/components/freertos/esp_additions/include
+IDF/components/esp_hw_support/include
+IDF/components/esp_hw_support/include/soc
+IDF/components/esp_hw_support/ldo/include
+IDF/components/esp_hw_support/debug_probe/include
+IDF/components/esp_hw_support/etm/include
+IDF/components/esp_hw_support/mspi_timing_tuning/include
+IDF/components/esp_hw_support/mspi_timing_tuning/tuning_scheme_impl/include
+IDF/components/esp_hw_support/power_supply/include
+IDF/components/esp_hw_support/modem/include
+IDF/components/esp_hw_support/port/esp32p4/.
+IDF/components/esp_hw_support/port/esp32p4/include
+IDF/components/esp_hw_support/port/esp32p4/private_include
+IDF/components/esp_hw_support/mspi_timing_tuning/port/esp32p4/.
+IDF/components/heap/include
+IDF/components/heap/tlsf
+IDF/components/log/include
+IDF/components/soc/include
+IDF/components/soc/esp32p4
+IDF/components/soc/esp32p4/include
+IDF/components/soc/esp32p4/register/hw_ver1
+IDF/components/hal/platform_port/include
+IDF/components/hal/esp32p4/include
+IDF/components/hal/include
+IDF/components/esp_rom/include
+IDF/components/esp_rom/esp32p4/include
+IDF/components/esp_rom/esp32p4/include/esp32p4
+IDF/components/esp_rom/esp32p4
+IDF/components/esp_common/include
+IDF/components/esp_system/include
+IDF/components/esp_system/port/soc
+IDF/components/esp_system/port/include/riscv
+IDF/components/esp_system/port/include/private
+IDF/components/esp_stdio/include
+IDF/components/riscv/include
+IDF/components/esp_hal_gpio/include
+IDF/components/esp_hal_gpio/esp32p4/include
+IDF/components/esp_hal_usb/include
+IDF/components/esp_hal_usb/esp32p4/include
+IDF/components/esp_hal_pmu/include
+IDF/components/esp_hal_pmu/esp32p4/include
+IDF/components/esp_hal_ana_conv/include
+IDF/components/esp_hal_ana_conv/esp32p4/include
+IDF/components/esp_hal_dma/include
+IDF/components/esp_hal_dma/esp32p4/include
+IDF/components/lwip/include
+IDF/components/lwip/include/apps
+IDF/components/lwip/lwip/src/include
+IDF/components/lwip/port/include
+IDF/components/lwip/port/freertos/include
+IDF/components/lwip/port/esp32xx/include
+IDF/components/lwip/port/esp32xx/include/arch
+IDF/components/lwip/port/esp32xx/include/sys
+IDF/components/esp_driver_sdmmc/include
+IDF/components/esp_driver_sdmmc/legacy/include
+IDF/components/esp_driver_sd_intf/include
+IDF/components/sdmmc/include
+IDF/components/esp_blockdev/include
+IDF/components/esp_hal_sd/include
+IDF/components/esp_hal_sd/esp32p4/include
+IDF/components/esp_driver_spi/include
+IDF/components/esp_pm/include
+IDF/components/esp_hal_gpspi/include
+IDF/components/esp_hal_gpspi/esp32p4/include
+IDF/components/esp_driver_dma/include
+IDF/components/esp_driver_uart/include
+IDF/components/esp_hal_uart/include
+IDF/components/esp_hal_uart/esp32p4/include
+IDF/components/vfs/include
+IDF/components/esp_driver_gpio/include
+IDF/components/esp_event/include
+IDF/components/esp_netif/include
+IDF/components/esp_timer/include
+IDF/components/driver/i2c/include
+IDF/components/driver/touch_sensor/include
+IDF/components/driver/twai/include
+IDF/components/esp_hal_i2c/esp32p4/include
+IDF/components/esp_hal_i2c/include
+IDF/components/esp_hal_twai/include
+IDF/components/esp_hal_twai/esp32p4/include
+IDF/components/esp_hal_touch_sens/esp32p4/include
+IDF/components/esp_hal_touch_sens/include
+MC/managed_components/espressif__esp_wifi_remote/idf_v6.0/include/injected
+IDF/components/esp_wifi/include
+IDF/components/esp_wifi/wifi_apps/nan_app/include
+MC/managed_components/espressif__esp_wifi_remote/include
+MC/managed_components/espressif__esp_wifi_remote/idf_v6.0/include
+IDF/components/bt/common/osi/include
+IDF/components/bt/common/api/include/api
+IDF/components/bt/common/btc/profile/esp/blufi/include
+IDF/components/bt/common/btc/profile/esp/include
+IDF/components/bt/common/hci_log/include
+IDF/components/bt/common/ble_log/include
+IDF/components/bt/common/ble_log/deprecated/include
+IDF/components/bt/common/tinycrypt/include
+IDF/components/bt/common/tinycrypt/port
+IDF/components/bt/host/nimble/nimble/nimble/host/include
+IDF/components/bt/host/nimble/nimble/nimble/include
+IDF/components/bt/host/nimble/nimble/nimble/host/services/ans/include
+IDF/components/bt/host/nimble/nimble/nimble/host/services/bas/include
+IDF/components/bt/host/nimble/nimble/nimble/host/services/dis/include
+IDF/components/bt/host/nimble/nimble/nimble/host/services/gap/include
+IDF/components/bt/host/nimble/nimble/nimble/host/services/gatt/include
+IDF/components/bt/host/nimble/nimble/nimble/host/services/hr/include
+IDF/components/bt/host/nimble/nimble/nimble/host/services/htp/include
+IDF/components/bt/host/nimble/nimble/nimble/host/services/ias/include
+IDF/components/bt/host/nimble/nimble/nimble/host/services/ipss/include
+IDF/components/bt/host/nimble/nimble/nimble/host/services/lls/include
+IDF/components/bt/host/nimble/nimble/nimble/host/services/prox/include
+IDF/components/bt/host/nimble/nimble/nimble/host/services/cts/include
+IDF/components/bt/host/nimble/nimble/nimble/host/services/tps/include
+IDF/components/bt/host/nimble/nimble/nimble/host/services/hid/include
+IDF/components/bt/host/nimble/nimble/nimble/host/services/sps/include
+IDF/components/bt/host/nimble/nimble/nimble/host/services/cte/include
+IDF/components/bt/host/nimble/nimble/nimble/host/util/include
+IDF/components/bt/host/nimble/nimble/nimble/host/store/ram/include
+IDF/components/bt/host/nimble/nimble/nimble/host/store/config/include
+IDF/components/bt/host/nimble/nimble/nimble/host/services/ras/include
+IDF/components/bt/host/nimble/nimble/porting/nimble/include
+IDF/components/bt/host/nimble/port/include
+IDF/components/bt/host/nimble/nimble/nimble/transport/include
+IDF/components/bt/host/nimble/nimble/nimble/transport/common/hci_h4/include
+IDF/components/bt/porting/include
+IDF/components/bt/host/nimble/nimble/porting/npl/freertos/include
+IDF/components/esp_http_client/include
+IDF/components/console
+IDF/components/wpa_supplicant/esp_supplicant/include
+IDF/components/esp_driver_usb_serial_jtag/include