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nix: improve docs and add support for wasi-libc

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I forgot a few things in the flake file, but now everything should be
included.
This commit is contained in:
Ayke van Laethem
2023-10-14 14:03:57 +02:00
committed by Ron Evans
parent 935a293106
commit 2d4307647e
2 changed files with 19 additions and 2 deletions
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GNUmakefile
+6 -1
View File
@@ -25,6 +25,11 @@ CLANG ?= $(call findLLVMTool,clang)
LLVM_AR ?= $(call findLLVMTool,llvm-ar)
LLVM_NM ?= $(call findLLVMTool,llvm-nm)
# Patch up Clang for Nix.
ifneq (, ${CLANG_RESOURCE_DIR})
CLANG := $(CLANG) -resource-dir ${CLANG_RESOURCE_DIR}
endif
# Go binary and GOROOT to select
GO ?= go
export GOROOT = $(shell $(GO) env GOROOT)
@@ -265,7 +270,7 @@ endif
wasi-libc: lib/wasi-libc/sysroot/lib/wasm32-wasi/libc.a
lib/wasi-libc/sysroot/lib/wasm32-wasi/libc.a:
@if [ ! -e lib/wasi-libc/Makefile ]; then echo "Submodules have not been downloaded. Please download them using:\n git submodule update --init"; exit 1; fi
cd lib/wasi-libc && $(MAKE) -j4 EXTRA_CFLAGS="-O2 -g -DNDEBUG -mnontrapping-fptoint -msign-ext" MALLOC_IMPL=none CC=$(CLANG) AR=$(LLVM_AR) NM=$(LLVM_NM)
cd lib/wasi-libc && $(MAKE) -j4 EXTRA_CFLAGS="-O2 -g -DNDEBUG -mnontrapping-fptoint -msign-ext" MALLOC_IMPL=none CC="$(CLANG)" AR=$(LLVM_AR) NM=$(LLVM_NM)
# Check for Node.js used during WASM tests.
NODEJS_VERSION := $(word 1,$(subst ., ,$(shell node -v | cut -c 2-)))
flake.nix
+13 -1
View File
@@ -16,6 +16,17 @@
#
# tinygo version
#
# But you'll need a bit more to make TinyGo actually able to compile code:
#
# make llvm-source # fetch compiler-rt
# git submodule update --init # fetch lots of other libraries and SVD files
# make gen-device -j4 # build src/device/*/*.go files
# make wasi-libc # build support for wasi/wasm
#
# With this, you should have an environment that can compile anything - except
# for the Xtensa architecture (ESP8266/ESP32) because support for that lives in
# a separate LLVM fork.
#
# You can also do many other things from this environment. Building and flashing
# should work as you're used to: it's not a VM or container so there are no
# access restrictions and you're running in the same host environment - just
@@ -55,7 +66,8 @@
shellHook= ''
# Ugly hack to make the Clang resources directory available.
# Perhaps there is a cleaner way to do it, but this works.
export GOFLAGS="\"-ldflags=-X github.com/tinygo-org/tinygo/goenv.clangResourceDir=${llvmPackages_16.clang.cc.lib}/lib/clang/16"\"
export CLANG_RESOURCE_DIR="${llvmPackages_16.clang.cc.lib}/lib/clang/16"
export GOFLAGS="\"-ldflags=-X github.com/tinygo-org/tinygo/goenv.clangResourceDir=$CLANG_RESOURCE_DIR"\"
'';
};
}