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Plumbing to allow crosscompiles of Ubuntu to ARM variants #534

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14dc70e
Fix size_t casting
pimvanpelt Apr 5, 2020
8d5fd87
Allow for EABIHF cross compiling, add to docker and Makefile. See htt…
pimvanpelt Apr 5, 2020
07b2403
Add EABI w/o hard floating point, and add ARM64 cross compilers
pimvanpelt Apr 5, 2020
f8bb88b
Cast size_t to %zu
pimvanpelt Apr 5, 2020
06534b2
Add ability to set --build-var=COMPILER_TOOLKIT=arm-linux-gnueabihf …
pimvanpelt Apr 5, 2020
12cc868
Cast to (unsigned long) because not all libc's support %zu
pimvanpelt Apr 5, 2020
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13 changes: 12 additions & 1 deletion platforms/ubuntu/Makefile.build
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Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,12 @@ APP_EXTRA_FW_PARTS ?=

ASAN ?= 0
PROF ?= 0
# COMPILER_TOOLKIT, valid options:
# aarch64-linux-gnu
# arm-linux-gnueabi
# arm-linux-gnueabihf
# x86_64-linux-gnu (the default)
COMPILER_TOOLKIT ?= x86_64-linux-gnu

# Explicitly disable updater, it's not supported on POSIX build yet.
MGOS_ENABLE_DEBUG_UDP = 0
Expand Down Expand Up @@ -62,6 +68,12 @@ C_CXX_FLAGS = -ggdb -MD -Wall -Wextra -Werror -pipe \
$(MONGOOSE_FEATURES)
LDFLAGS ?=

# Select compiler toolkit
CC = $(COMPILER_TOOLKIT)-gcc
CXX = $(COMPILER_TOOLKIT)-g++
AR = $(COMPILER_TOOLKIT)-ar
LD = $(COMPILER_TOOLKIT)-ld

ifeq "$(ASAN)" "1"
CC = clang
CXX = clang++
Expand All @@ -86,7 +98,6 @@ CXXFLAGS = -std=gnu++11 -fno-exceptions $(C_CXX_FLAGS) $(APP_CXXFLAGS)
LDFLAGS += -lstdc++

INCDIRS = $(addprefix -I,$(INCLUDES))
AR ?= ar
APP_BIN_LIBS ?=
LIBS ?= pthread cap
LDLIBS = $(addprefix -l,$(LIBS))
Expand Down
4 changes: 2 additions & 2 deletions platforms/ubuntu/src/ubuntu_main.c
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Expand Up @@ -230,8 +230,8 @@ enum mgos_init_result mongoose_init(void) {
cpu_freq = (int) (mgos_get_cpu_freq() / 1000000);
heap_size = mgos_get_heap_size();
free_heap_size = mgos_get_free_heap_size();
LOG(LL_INFO, ("CPU: %d MHz, heap: %lu total, %lu free", cpu_freq, heap_size,
free_heap_size));
LOG(LL_INFO, ("CPU: %d MHz, heap: %lu total, %lu free", cpu_freq,
(unsigned long) heap_size, (unsigned long) free_heap_size));

mgos_invoke_cb(ubuntu_net_up, NULL, false /* from_isr */);

Expand Down
5 changes: 4 additions & 1 deletion tools/docker/ubuntu/Dockerfile-ubuntu-build
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Expand Up @@ -6,7 +6,10 @@ RUN DEBIAN_FRONTEND=noninteractive apt-get update && \
libexpat-dev libncurses5-dev libtool-bin \
python python-dev python-git python-pyelftools python-serial python-six python-yaml \
python3 python3-dev python3-git python3-pyelftools python3-serial python3-six python3-yaml \
software-properties-common texinfo unzip wget zip && \
software-properties-common texinfo unzip wget zip \
gcc-multilib-arm-linux-gnueabi g++-arm-linux-gnueabi \
gcc-multilib-arm-linux-gnueabihf g++-arm-linux-gnueabihf \
gcc-aarch64-linux-gnu g++-aarch64-linux-gnu && \
apt-get clean

RUN DEBIAN_FRONTEND=noninteractive apt-get update && \
Expand Down