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92b218fbc3
This commit allows building YJIT and ZJIT simultaneously, a "combo build". Previously, `./configure --enable-yjit --enable-zjit` failed. At runtime, though, only one of the two can be enabled at a time. Add a root Cargo workspace that contains both the yjit and zjit crate. The common Rust build integration mechanisms are factored out into defs/jit.mk. Combo YJIT+ZJIT dev builds are supported; if either JIT uses `--enable-*=dev`, both of them are built in dev mode. The combo build requires Cargo, but building one JIT at a time with only rustc in release build remains supported.
53 lines
2.2 KiB
Makefile
53 lines
2.2 KiB
Makefile
# Make recipes that deal with the rust code of YJIT and ZJIT.
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# Because of Cargo cache, if the actual binary is not changed from the
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# previous build, the mtime is preserved as the cached file.
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# This means the target is not updated actually, and it will need to
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# rebuild at the next build.
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RUST_LIB_TOUCH = touch $@
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ifneq ($(JIT_CARGO_SUPPORT),no)
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$(RUST_LIB):
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$(Q)if [ '$(ZJIT_SUPPORT)' != no -a '$(YJIT_SUPPORT)' != no ]; then \
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echo 'building YJIT and ZJIT ($(JIT_CARGO_SUPPORT:yes=release) mode)'; \
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elif [ '$(ZJIT_SUPPORT)' != no ]; then \
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echo 'building ZJIT ($(JIT_CARGO_SUPPORT) mode)'; \
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elif [ '$(YJIT_SUPPORT)' != no ]; then \
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echo 'building YJIT ($(JIT_CARGO_SUPPORT) mode)'; \
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fi
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+$(Q)CARGO_TARGET_DIR='$(CARGO_TARGET_DIR)' \
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CARGO_TERM_PROGRESS_WHEN='never' \
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$(CARGO) $(CARGO_VERBOSE) build --manifest-path '$(top_srcdir)/Cargo.toml' $(CARGO_BUILD_ARGS)
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$(RUST_LIB_TOUCH)
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endif
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RUST_LIB_SYMBOLS = $(RUST_LIB:.a=).symbols
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$(RUST_LIBOBJ): $(RUST_LIB)
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$(ECHO) 'partial linking $(RUST_LIB) into $@'
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ifneq ($(findstring darwin,$(target_os)),)
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$(Q) $(CC) -nodefaultlibs -r -o $@ -exported_symbols_list $(RUST_LIB_SYMBOLS) $(RUST_LIB)
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else
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$(Q) $(LD) -r -o $@ --whole-archive $(RUST_LIB)
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-$(Q) $(OBJCOPY) --wildcard --keep-global-symbol='$(SYMBOL_PREFIX)rb_*' $(@)
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endif
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rust-libobj: $(RUST_LIBOBJ)
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rust-lib: $(RUST_LIB)
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# For Darwin only: a list of symbols that we want the glommed Rust static lib to export.
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# Unfortunately, using wildcard like '_rb_*' with -exported-symbol does not work, at least
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# not on version 820.1. Assume llvm-nm, so XCode 8.0 (from 2016) or newer.
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#
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# The -exported_symbols_list pulls out the right archive members. Symbols not listed
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# in the list are made private extern, which are in turn made local as we're using `ld -r`.
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# Note, section about -keep_private_externs in ld's man page hints at this behavior on which
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# we rely.
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ifneq ($(findstring darwin,$(target_os)),)
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$(RUST_LIB_SYMBOLS): $(RUST_LIB)
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$(Q) $(tooldir)/darwin-ar $(NM) --defined-only --extern-only $(RUST_LIB) | \
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sed -n -e 's/.* //' -e '/^$(SYMBOL_PREFIX)rb_/p' \
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-e '/^$(SYMBOL_PREFIX)rust_eh_personality/p' \
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> $@
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$(RUST_LIBOBJ): $(RUST_LIB_SYMBOLS)
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endif
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