mirror of
https://github.com/rust-lang/rust
synced 2024-09-05 16:57:03 +00:00
crate-ify compiler-rt into compiler-builtins
libcompiler-rt.a is dead, long live libcompiler-builtins.rlib This commit moves the logic that used to build libcompiler-rt.a into a compiler-builtins crate on top of the core crate and below the std crate. This new crate still compiles the compiler-rt instrinsics using gcc-rs but produces an .rlib instead of a static library. Also, with this commit rustc no longer passes -lcompiler-rt to the linker. This effectively makes the "no-compiler-rt" field of target specifications a no-op. Users of `no_std` will have to explicitly add the compiler-builtins crate to their crate dependency graph *if* they need the compiler-rt intrinsics. Users of the `std` have to do nothing extra as the std crate depends on compiler-builtins. Finally, this a step towards lazy compilation of std with Cargo as the compiler-rt intrinsics can now be built by Cargo instead of having to be supplied by the user by some other method. closes #34400
This commit is contained in:
parent
fa9d8cc8ac
commit
3fd5fdd8d3
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@ -102,7 +102,6 @@ define CLEAN_TARGET_STAGE_N
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clean$(1)_T_$(2)_H_$(3): \
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$$(foreach crate,$$(CRATES),clean$(1)_T_$(2)_H_$(3)-lib-$$(crate)) \
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$$(foreach tool,$$(TOOLS) $$(DEBUGGER_BIN_SCRIPTS_ALL),clean$(1)_T_$(2)_H_$(3)-tool-$$(tool))
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$$(Q)rm -f $$(TLIB$(1)_T_$(2)_H_$(3))/libcompiler-rt.a
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$(Q)rm -f $$(TLIB$(1)_T_$(2)_H_$(3))/librun_pass_stage* # For unix
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$(Q)rm -f $$(TLIB$(1)_T_$(2)_H_$(3))/run_pass_stage* # For windows
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@ -51,7 +51,7 @@
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TARGET_CRATES := libc std term \
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getopts collections test rand \
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core alloc \
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compiler_builtins core alloc \
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rustc_unicode rustc_bitflags \
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alloc_system alloc_jemalloc \
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panic_abort panic_unwind unwind
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@ -65,6 +65,7 @@ HOST_CRATES := syntax syntax_ext proc_macro syntax_pos $(RUSTC_CRATES) rustdoc f
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TOOLS := compiletest rustdoc rustc rustbook error_index_generator
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DEPS_core :=
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DEPS_compiler_builtins := core
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DEPS_alloc := core libc alloc_system
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DEPS_alloc_system := core libc
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DEPS_alloc_jemalloc := core libc native:jemalloc
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@ -77,12 +78,14 @@ DEPS_panic_abort := libc alloc
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DEPS_panic_unwind := libc alloc unwind
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DEPS_unwind := libc
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RUSTFLAGS_compiler_builtins := -lstatic=compiler-rt
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# FIXME(stage0): change this to just `RUSTFLAGS_panic_abort := ...`
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RUSTFLAGS1_panic_abort := -C panic=abort
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RUSTFLAGS2_panic_abort := -C panic=abort
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RUSTFLAGS3_panic_abort := -C panic=abort
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DEPS_std := core libc rand alloc collections rustc_unicode \
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DEPS_std := core libc rand alloc collections compiler_builtins rustc_unicode \
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native:backtrace \
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alloc_system panic_abort panic_unwind unwind
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DEPS_arena := std
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@ -153,6 +156,7 @@ TOOL_SOURCE_rustc := $(S)src/driver/driver.rs
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TOOL_SOURCE_rustbook := $(S)src/tools/rustbook/main.rs
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TOOL_SOURCE_error_index_generator := $(S)src/tools/error_index_generator/main.rs
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ONLY_RLIB_compiler_builtins := 1
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ONLY_RLIB_core := 1
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ONLY_RLIB_libc := 1
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ONLY_RLIB_alloc := 1
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@ -455,7 +455,10 @@ endif
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TSREQ$(1)_T_$(2)_H_$(3) = \
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$$(HSREQ$(1)_H_$(3)) \
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$$(foreach obj,$$(REQUIRED_OBJECTS_$(2)),\
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$$(TLIB$(1)_T_$(2)_H_$(3))/$$(obj))
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$$(TLIB$(1)_T_$(2)_H_$(3))/$$(obj)) \
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$$(TLIB0_T_$(2)_H_$(3))/libcompiler-rt.a
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# ^ This copies `libcompiler-rt.a` to the stage0 sysroot
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# ^ TODO(stage0) update this to not copy `libcompiler-rt.a` to stage0
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# Prerequisites for a working stageN compiler and libraries, for a specific
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# target
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@ -102,8 +102,6 @@ include $(wildcard $(CFG_SRC_DIR)mk/cfg/*.mk)
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define ADD_INSTALLED_OBJECTS
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INSTALLED_OBJECTS_$(1) += $$(CFG_INSTALLED_OBJECTS_$(1))
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REQUIRED_OBJECTS_$(1) += $$(CFG_THIRD_PARTY_OBJECTS_$(1))
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INSTALLED_OBJECTS_$(1) += $$(call CFG_STATIC_LIB_NAME_$(1),compiler-rt)
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REQUIRED_OBJECTS_$(1) += $$(call CFG_STATIC_LIB_NAME_$(1),compiler-rt)
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endef
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$(foreach target,$(CFG_TARGET), \
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340
mk/rt.mk
340
mk/rt.mk
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@ -37,6 +37,16 @@
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################################################################################
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NATIVE_LIBS := hoedown miniz rust_test_helpers
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# A macro to add a generic implementation of intrinsics iff a arch optimized implementation is not
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# already in the list.
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# $(1) is the target
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# $(2) is the intrinsic
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define ADD_INTRINSIC
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ifeq ($$(findstring X,$$(foreach intrinsic,$$(COMPRT_OBJS_$(1)),$$(if $$(findstring $(2),$$(intrinsic)),X,))),)
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COMPRT_OBJS_$(1) += $(2)
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endif
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endef
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# $(1) is the target triple
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define NATIVE_LIBRARIES
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@ -230,167 +240,15 @@ COMPRT_NAME_$(1) := $$(call CFG_STATIC_LIB_NAME_$(1),compiler-rt)
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COMPRT_LIB_$(1) := $$(RT_OUTPUT_DIR_$(1))/$$(COMPRT_NAME_$(1))
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COMPRT_BUILD_DIR_$(1) := $$(RT_OUTPUT_DIR_$(1))/compiler-rt
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# GENERIC_SOURCES in CMakeLists.txt
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COMPRT_OBJS_$(1) := \
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absvdi2.o \
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absvsi2.o \
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adddf3.o \
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addsf3.o \
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addvdi3.o \
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addvsi3.o \
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apple_versioning.o \
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ashldi3.o \
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ashrdi3.o \
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clear_cache.o \
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clzdi2.o \
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clzsi2.o \
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cmpdi2.o \
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comparedf2.o \
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comparesf2.o \
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ctzdi2.o \
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ctzsi2.o \
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divdc3.o \
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divdf3.o \
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divdi3.o \
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divmoddi4.o \
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divmodsi4.o \
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divsc3.o \
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divsf3.o \
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divsi3.o \
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divxc3.o \
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extendsfdf2.o \
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extendhfsf2.o \
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ffsdi2.o \
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fixdfdi.o \
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fixdfsi.o \
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fixsfdi.o \
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fixsfsi.o \
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fixunsdfdi.o \
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fixunsdfsi.o \
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fixunssfdi.o \
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fixunssfsi.o \
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fixunsxfdi.o \
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fixunsxfsi.o \
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fixxfdi.o \
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floatdidf.o \
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floatdisf.o \
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floatdixf.o \
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floatsidf.o \
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floatsisf.o \
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floatundidf.o \
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floatundisf.o \
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floatundixf.o \
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floatunsidf.o \
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floatunsisf.o \
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int_util.o \
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lshrdi3.o \
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moddi3.o \
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modsi3.o \
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muldc3.o \
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muldf3.o \
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muldi3.o \
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mulodi4.o \
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mulosi4.o \
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muloti4.o \
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mulsc3.o \
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mulsf3.o \
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mulvdi3.o \
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mulvsi3.o \
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mulxc3.o \
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negdf2.o \
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negdi2.o \
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negsf2.o \
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negvdi2.o \
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negvsi2.o \
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paritydi2.o \
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paritysi2.o \
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popcountdi2.o \
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popcountsi2.o \
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powidf2.o \
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powisf2.o \
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powixf2.o \
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subdf3.o \
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subsf3.o \
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subvdi3.o \
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subvsi3.o \
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truncdfhf2.o \
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truncdfsf2.o \
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truncsfhf2.o \
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ucmpdi2.o \
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udivdi3.o \
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udivmoddi4.o \
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udivmodsi4.o \
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udivsi3.o \
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umoddi3.o \
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umodsi3.o
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# We must avoid compiling both a generic implementation (e.g. `floatdidf.c) and an arch optimized
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# implementation (e.g. `x86_64/floatdidf.S) of the same symbol (e.g. `floatdidf) because that causes
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# linker errors. To avoid that, we first add all the arch optimized implementations and then add the
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# generic implementations if and only if its arch optimized version is not already in the list. This
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# last part is handled by the ADD_INTRINSIC macro.
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ifeq ($$(findstring ios,$(1)),)
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COMPRT_OBJS_$(1) += \
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absvti2.o \
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addtf3.o \
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addvti3.o \
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ashlti3.o \
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ashrti3.o \
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clzti2.o \
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cmpti2.o \
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ctzti2.o \
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divtf3.o \
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divti3.o \
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ffsti2.o \
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fixdfti.o \
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fixsfti.o \
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fixunsdfti.o \
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fixunssfti.o \
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fixunsxfti.o \
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fixxfti.o \
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floattidf.o \
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floattisf.o \
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floattixf.o \
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floatuntidf.o \
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floatuntisf.o \
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floatuntixf.o \
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lshrti3.o \
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modti3.o \
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multf3.o \
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multi3.o \
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mulvti3.o \
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negti2.o \
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negvti2.o \
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parityti2.o \
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popcountti2.o \
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powitf2.o \
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subtf3.o \
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subvti3.o \
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trampoline_setup.o \
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ucmpti2.o \
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udivmodti4.o \
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udivti3.o \
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umodti3.o
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endif
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ifeq ($$(findstring apple,$(1)),apple)
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COMPRT_OBJS_$(1) += \
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atomic_flag_clear.o \
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atomic_flag_clear_explicit.o \
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atomic_flag_test_and_set.o \
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atomic_flag_test_and_set_explicit.o \
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atomic_signal_fence.o \
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atomic_thread_fence.o
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endif
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ifeq ($$(findstring windows,$(1)),)
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COMPRT_OBJS_$(1) += emutls.o
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endif
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COMPRT_OBJS_$(1) :=
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ifeq ($$(findstring msvc,$(1)),)
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ifeq ($$(findstring freebsd,$(1)),)
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COMPRT_OBJS_$(1) += gcc_personality_v0.o
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endif
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COMPRT_OBJS_$(1) += emutls.o
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ifeq ($$(findstring x86_64,$(1)),x86_64)
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COMPRT_OBJS_$(1) += \
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x86_64/chkstk.o \
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@ -540,9 +398,168 @@ COMPRT_OBJS_$(1) += \
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arm/unordsf2vfp.o
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endif
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$(foreach intrinsic,absvdi2.o \
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absvsi2.o \
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adddf3.o \
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addsf3.o \
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addvdi3.o \
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addvsi3.o \
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apple_versioning.o \
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ashldi3.o \
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ashrdi3.o \
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clear_cache.o \
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clzdi2.o \
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clzsi2.o \
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cmpdi2.o \
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comparedf2.o \
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comparesf2.o \
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ctzdi2.o \
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ctzsi2.o \
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divdc3.o \
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divdf3.o \
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divdi3.o \
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divmoddi4.o \
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divmodsi4.o \
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divsc3.o \
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divsf3.o \
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divsi3.o \
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divxc3.o \
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extendsfdf2.o \
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extendhfsf2.o \
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ffsdi2.o \
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fixdfdi.o \
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fixdfsi.o \
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fixsfdi.o \
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fixsfsi.o \
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fixunsdfdi.o \
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fixunsdfsi.o \
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fixunssfdi.o \
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fixunssfsi.o \
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fixunsxfdi.o \
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fixunsxfsi.o \
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fixxfdi.o \
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floatdidf.o \
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floatdisf.o \
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floatdixf.o \
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floatsidf.o \
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floatsisf.o \
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floatundidf.o \
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floatundisf.o \
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floatundixf.o \
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floatunsidf.o \
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floatunsisf.o \
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int_util.o \
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lshrdi3.o \
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moddi3.o \
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modsi3.o \
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muldc3.o \
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muldf3.o \
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muldi3.o \
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mulodi4.o \
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mulosi4.o \
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muloti4.o \
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mulsc3.o \
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mulsf3.o \
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mulvdi3.o \
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mulvsi3.o \
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mulxc3.o \
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negdf2.o \
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negdi2.o \
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negsf2.o \
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negvdi2.o \
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negvsi2.o \
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paritydi2.o \
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paritysi2.o \
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popcountdi2.o \
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popcountsi2.o \
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powidf2.o \
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powisf2.o \
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powixf2.o \
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subdf3.o \
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subsf3.o \
|
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subvdi3.o \
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subvsi3.o \
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truncdfhf2.o \
|
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truncdfsf2.o \
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truncsfhf2.o \
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ucmpdi2.o \
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udivdi3.o \
|
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udivmoddi4.o \
|
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udivmodsi4.o \
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udivsi3.o \
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umoddi3.o \
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umodsi3.o,
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$(call ADD_INTRINSIC,$(1),$(intrinsic)))
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ifeq ($$(findstring ios,$(1)),)
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$(foreach intrinsic,absvti2.o \
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addtf3.o \
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addvti3.o \
|
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ashlti3.o \
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ashrti3.o \
|
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clzti2.o \
|
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cmpti2.o \
|
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ctzti2.o \
|
||||
divtf3.o \
|
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divti3.o \
|
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ffsti2.o \
|
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fixdfti.o \
|
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fixsfti.o \
|
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fixunsdfti.o \
|
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fixunssfti.o \
|
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fixunsxfti.o \
|
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fixxfti.o \
|
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floattidf.o \
|
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floattisf.o \
|
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floattixf.o \
|
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floatuntidf.o \
|
||||
floatuntisf.o \
|
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floatuntixf.o \
|
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lshrti3.o \
|
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modti3.o \
|
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multf3.o \
|
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multi3.o \
|
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mulvti3.o \
|
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negti2.o \
|
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negvti2.o \
|
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parityti2.o \
|
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popcountti2.o \
|
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powitf2.o \
|
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subtf3.o \
|
||||
subvti3.o \
|
||||
trampoline_setup.o \
|
||||
ucmpti2.o \
|
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udivmodti4.o \
|
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udivti3.o \
|
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umodti3.o,
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$(call ADD_INTRINSIC,$(1),$(intrinsic)))
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endif
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|
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ifeq ($$(findstring apple,$(1)),apple)
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$(foreach intrinsic,atomic_flag_clear.o \
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atomic_flag_clear_explicit.o \
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atomic_flag_test_and_set.o \
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atomic_flag_test_and_set_explicit.o \
|
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atomic_signal_fence.o \
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atomic_thread_fence.o,
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$(call ADD_INTRINSIC,$(1),$(intrinsic)))
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endif
|
||||
|
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ifeq ($$(findstring windows,$(1)),)
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$(call ADD_INTRINSIC,$(1),emutls.o)
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endif
|
||||
|
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ifeq ($$(findstring msvc,$(1)),)
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|
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ifeq ($$(findstring freebsd,$(1)),)
|
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$(call ADD_INTRINSIC,$(1),gcc_personality_v0.o)
|
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endif
|
||||
|
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$(call ADD_INTRINSIC,$(1),emutls.o)
|
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endif
|
||||
|
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ifeq ($$(findstring aarch64,$(1)),aarch64)
|
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COMPRT_OBJS_$(1) += \
|
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comparetf2.o \
|
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$(foreach intrinsic,comparetf2.o \
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extenddftf2.o \
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extendsftf2.o \
|
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fixtfdi.o \
|
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|
@ -557,7 +574,8 @@ COMPRT_OBJS_$(1) += \
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floatunsitf.o \
|
||||
multc3.o \
|
||||
trunctfdf2.o \
|
||||
trunctfsf2.o
|
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trunctfsf2.o,
|
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$(call ADD_INTRINSIC,$(1),$(intrinsic)))
|
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endif
|
||||
|
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ifeq ($$(findstring msvc,$(1)),msvc)
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|
|
@ -28,7 +28,6 @@ pub fn clean(build: &Build) {
|
|||
|
||||
let out = build.out.join(host);
|
||||
|
||||
rm_rf(build, &out.join("compiler-rt"));
|
||||
rm_rf(build, &out.join("doc"));
|
||||
|
||||
for stage in 0..4 {
|
||||
|
|
|
@ -35,13 +35,23 @@ pub fn std<'a>(build: &'a Build, target: &str, compiler: &Compiler<'a>) {
|
|||
println!("Building stage{} std artifacts ({} -> {})", compiler.stage,
|
||||
compiler.host, target);
|
||||
|
||||
// Move compiler-rt into place as it'll be required by the compiler when
|
||||
// building the standard library to link the dylib of libstd
|
||||
let libdir = build.sysroot_libdir(compiler, target);
|
||||
let _ = fs::remove_dir_all(&libdir);
|
||||
t!(fs::create_dir_all(&libdir));
|
||||
copy(&build.compiler_rt_built.borrow()[target],
|
||||
&libdir.join(staticlib("compiler-rt", target)));
|
||||
// FIXME(stage0) remove this `if` after the next snapshot
|
||||
// The stage0 compiler still passes the `-lcompiler-rt` flag to the linker but now `bootstrap`
|
||||
// never builds a `libcopmiler-rt.a`! We'll fill the hole by simply copying stage0's
|
||||
// `libcompiler-rt.a` to where the stage1's one is expected (though we could as well just use
|
||||
// an empty `.a` archive). Note that the symbols of that stage0 `libcompiler-rt.a` won't make
|
||||
// it to the final binary because now `libcore.rlib` also contains the symbols that
|
||||
// `libcompiler-rt.a` provides. Since that rlib appears first in the linker arguments, its
|
||||
// symbols are used instead of `libcompiler-rt.a`'s.
|
||||
if compiler.stage == 0 {
|
||||
let rtlib = &staticlib("compiler-rt", target);
|
||||
let src = build.rustc.parent().unwrap().parent().unwrap().join("lib").join("rustlib")
|
||||
.join(target).join("lib").join(rtlib);
|
||||
copy(&src, &libdir.join(rtlib));
|
||||
}
|
||||
|
||||
// Some platforms have startup objects that may be required to produce the
|
||||
// libstd dynamic library, for example.
|
||||
|
@ -83,12 +93,10 @@ pub fn std_link(build: &Build,
|
|||
|
||||
// If we're linking one compiler host's output into another, then we weren't
|
||||
// called from the `std` method above. In that case we clean out what's
|
||||
// already there and then also link compiler-rt into place.
|
||||
// already there.
|
||||
if host != compiler.host {
|
||||
let _ = fs::remove_dir_all(&libdir);
|
||||
t!(fs::create_dir_all(&libdir));
|
||||
copy(&build.compiler_rt_built.borrow()[target],
|
||||
&libdir.join(staticlib("compiler-rt", target)));
|
||||
}
|
||||
add_to_sysroot(&out_dir, &libdir);
|
||||
|
||||
|
|
|
@ -28,7 +28,6 @@
|
|||
extern crate toml;
|
||||
extern crate regex;
|
||||
|
||||
use std::cell::RefCell;
|
||||
use std::collections::HashMap;
|
||||
use std::env;
|
||||
use std::fs::{self, File};
|
||||
|
@ -131,7 +130,6 @@ pub struct Build {
|
|||
// Runtime state filled in later on
|
||||
cc: HashMap<String, (gcc::Tool, Option<PathBuf>)>,
|
||||
cxx: HashMap<String, gcc::Tool>,
|
||||
compiler_rt_built: RefCell<HashMap<String, PathBuf>>,
|
||||
}
|
||||
|
||||
/// The various "modes" of invoking Cargo.
|
||||
|
@ -198,7 +196,6 @@ pub fn new(flags: Flags, config: Config) -> Build {
|
|||
package_vers: String::new(),
|
||||
cc: HashMap::new(),
|
||||
cxx: HashMap::new(),
|
||||
compiler_rt_built: RefCell::new(HashMap::new()),
|
||||
gdb_version: None,
|
||||
lldb_version: None,
|
||||
lldb_python_dir: None,
|
||||
|
@ -252,9 +249,6 @@ pub fn build(&mut self) {
|
|||
Llvm { _dummy } => {
|
||||
native::llvm(self, target.target);
|
||||
}
|
||||
CompilerRt { _dummy } => {
|
||||
native::compiler_rt(self, target.target);
|
||||
}
|
||||
TestHelpers { _dummy } => {
|
||||
native::test_helpers(self, target.target);
|
||||
}
|
||||
|
@ -839,11 +833,6 @@ fn llvm_filecheck(&self, target: &str) -> PathBuf {
|
|||
}
|
||||
}
|
||||
|
||||
/// Root output directory for compiler-rt compiled for `target`
|
||||
fn compiler_rt_out(&self, target: &str) -> PathBuf {
|
||||
self.out.join(target).join("compiler-rt")
|
||||
}
|
||||
|
||||
/// Root output directory for rust_test_helpers library compiled for
|
||||
/// `target`
|
||||
fn test_helpers_out(&self, target: &str) -> PathBuf {
|
||||
|
|
|
@ -27,7 +27,7 @@
|
|||
use gcc;
|
||||
|
||||
use Build;
|
||||
use util::{staticlib, up_to_date};
|
||||
use util::up_to_date;
|
||||
|
||||
/// Compile LLVM for `target`.
|
||||
pub fn llvm(build: &Build, target: &str) {
|
||||
|
@ -131,401 +131,6 @@ fn check_llvm_version(build: &Build, llvm_config: &Path) {
|
|||
panic!("\n\nbad LLVM version: {}, need >=3.5\n\n", version)
|
||||
}
|
||||
|
||||
/// Compiles the `compiler-rt` library, or at least the builtins part of it.
|
||||
///
|
||||
/// Note that while compiler-rt has a build system associated with it, we
|
||||
/// specifically don't use it here. The compiler-rt build system, written in
|
||||
/// CMake, is actually *very* difficult to work with in terms of getting it to
|
||||
/// compile on all the relevant platforms we want it to compile on. In the end
|
||||
/// it became so much pain to work with local patches, work around the oddities
|
||||
/// of the build system, etc, that we're just building everything by hand now.
|
||||
///
|
||||
/// In general compiler-rt is just a bunch of intrinsics that are in practice
|
||||
/// *very* stable. We just need to make sure that all the relevant functions and
|
||||
/// such are compiled somewhere and placed in an object file somewhere.
|
||||
/// Eventually, these should all be written in Rust!
|
||||
///
|
||||
/// So below you'll find a listing of every single file in the compiler-rt repo
|
||||
/// that we're compiling. We just reach in and compile with the `gcc` crate
|
||||
/// which should have all the relevant flags and such already configured.
|
||||
///
|
||||
/// The risk here is that if we update compiler-rt we may need to compile some
|
||||
/// new intrinsics, but to be honest we surely don't use all of the intrinsics
|
||||
/// listed below today so the likelihood of us actually needing a new intrinsic
|
||||
/// is quite low. The failure case is also just that someone reports a link
|
||||
/// error (if any) and then we just add it to the list. Overall, that cost is
|
||||
/// far far less than working with compiler-rt's build system over time.
|
||||
pub fn compiler_rt(build: &Build, target: &str) {
|
||||
let build_dir = build.compiler_rt_out(target);
|
||||
let output = build_dir.join(staticlib("compiler-rt", target));
|
||||
build.compiler_rt_built.borrow_mut().insert(target.to_string(),
|
||||
output.clone());
|
||||
t!(fs::create_dir_all(&build_dir));
|
||||
|
||||
let mut cfg = gcc::Config::new();
|
||||
cfg.cargo_metadata(false)
|
||||
.out_dir(&build_dir)
|
||||
.target(target)
|
||||
.host(&build.config.build)
|
||||
.opt_level(2)
|
||||
.debug(false);
|
||||
|
||||
if target.contains("msvc") {
|
||||
// Don't pull in extra libraries on MSVC
|
||||
cfg.flag("/Zl");
|
||||
|
||||
// Emulate C99 and C++11's __func__ for MSVC prior to 2013 CTP
|
||||
cfg.define("__func__", Some("__FUNCTION__"));
|
||||
} else {
|
||||
// Turn off various features of gcc and such, mostly copying
|
||||
// compiler-rt's build system already
|
||||
cfg.flag("-fno-builtin");
|
||||
cfg.flag("-fvisibility=hidden");
|
||||
cfg.flag("-fomit-frame-pointer");
|
||||
cfg.flag("-ffreestanding");
|
||||
}
|
||||
|
||||
let mut sources = vec![
|
||||
"absvdi2.c",
|
||||
"absvsi2.c",
|
||||
"adddf3.c",
|
||||
"addsf3.c",
|
||||
"addvdi3.c",
|
||||
"addvsi3.c",
|
||||
"apple_versioning.c",
|
||||
"ashldi3.c",
|
||||
"ashrdi3.c",
|
||||
"clear_cache.c",
|
||||
"clzdi2.c",
|
||||
"clzsi2.c",
|
||||
"cmpdi2.c",
|
||||
"comparedf2.c",
|
||||
"comparesf2.c",
|
||||
"ctzdi2.c",
|
||||
"ctzsi2.c",
|
||||
"divdc3.c",
|
||||
"divdf3.c",
|
||||
"divdi3.c",
|
||||
"divmoddi4.c",
|
||||
"divmodsi4.c",
|
||||
"divsc3.c",
|
||||
"divsf3.c",
|
||||
"divsi3.c",
|
||||
"divxc3.c",
|
||||
"extendsfdf2.c",
|
||||
"extendhfsf2.c",
|
||||
"ffsdi2.c",
|
||||
"fixdfdi.c",
|
||||
"fixdfsi.c",
|
||||
"fixsfdi.c",
|
||||
"fixsfsi.c",
|
||||
"fixunsdfdi.c",
|
||||
"fixunsdfsi.c",
|
||||
"fixunssfdi.c",
|
||||
"fixunssfsi.c",
|
||||
"fixunsxfdi.c",
|
||||
"fixunsxfsi.c",
|
||||
"fixxfdi.c",
|
||||
"floatdidf.c",
|
||||
"floatdisf.c",
|
||||
"floatdixf.c",
|
||||
"floatsidf.c",
|
||||
"floatsisf.c",
|
||||
"floatundidf.c",
|
||||
"floatundisf.c",
|
||||
"floatundixf.c",
|
||||
"floatunsidf.c",
|
||||
"floatunsisf.c",
|
||||
"int_util.c",
|
||||
"lshrdi3.c",
|
||||
"moddi3.c",
|
||||
"modsi3.c",
|
||||
"muldc3.c",
|
||||
"muldf3.c",
|
||||
"muldi3.c",
|
||||
"mulodi4.c",
|
||||
"mulosi4.c",
|
||||
"muloti4.c",
|
||||
"mulsc3.c",
|
||||
"mulsf3.c",
|
||||
"mulvdi3.c",
|
||||
"mulvsi3.c",
|
||||
"mulxc3.c",
|
||||
"negdf2.c",
|
||||
"negdi2.c",
|
||||
"negsf2.c",
|
||||
"negvdi2.c",
|
||||
"negvsi2.c",
|
||||
"paritydi2.c",
|
||||
"paritysi2.c",
|
||||
"popcountdi2.c",
|
||||
"popcountsi2.c",
|
||||
"powidf2.c",
|
||||
"powisf2.c",
|
||||
"powixf2.c",
|
||||
"subdf3.c",
|
||||
"subsf3.c",
|
||||
"subvdi3.c",
|
||||
"subvsi3.c",
|
||||
"truncdfhf2.c",
|
||||
"truncdfsf2.c",
|
||||
"truncsfhf2.c",
|
||||
"ucmpdi2.c",
|
||||
"udivdi3.c",
|
||||
"udivmoddi4.c",
|
||||
"udivmodsi4.c",
|
||||
"udivsi3.c",
|
||||
"umoddi3.c",
|
||||
"umodsi3.c",
|
||||
];
|
||||
|
||||
if !target.contains("ios") {
|
||||
sources.extend(vec![
|
||||
"absvti2.c",
|
||||
"addtf3.c",
|
||||
"addvti3.c",
|
||||
"ashlti3.c",
|
||||
"ashrti3.c",
|
||||
"clzti2.c",
|
||||
"cmpti2.c",
|
||||
"ctzti2.c",
|
||||
"divtf3.c",
|
||||
"divti3.c",
|
||||
"ffsti2.c",
|
||||
"fixdfti.c",
|
||||
"fixsfti.c",
|
||||
"fixunsdfti.c",
|
||||
"fixunssfti.c",
|
||||
"fixunsxfti.c",
|
||||
"fixxfti.c",
|
||||
"floattidf.c",
|
||||
"floattisf.c",
|
||||
"floattixf.c",
|
||||
"floatuntidf.c",
|
||||
"floatuntisf.c",
|
||||
"floatuntixf.c",
|
||||
"lshrti3.c",
|
||||
"modti3.c",
|
||||
"multf3.c",
|
||||
"multi3.c",
|
||||
"mulvti3.c",
|
||||
"negti2.c",
|
||||
"negvti2.c",
|
||||
"parityti2.c",
|
||||
"popcountti2.c",
|
||||
"powitf2.c",
|
||||
"subtf3.c",
|
||||
"subvti3.c",
|
||||
"trampoline_setup.c",
|
||||
"ucmpti2.c",
|
||||
"udivmodti4.c",
|
||||
"udivti3.c",
|
||||
"umodti3.c",
|
||||
]);
|
||||
}
|
||||
|
||||
if target.contains("apple") {
|
||||
sources.extend(vec![
|
||||
"atomic_flag_clear.c",
|
||||
"atomic_flag_clear_explicit.c",
|
||||
"atomic_flag_test_and_set.c",
|
||||
"atomic_flag_test_and_set_explicit.c",
|
||||
"atomic_signal_fence.c",
|
||||
"atomic_thread_fence.c",
|
||||
]);
|
||||
}
|
||||
|
||||
if !target.contains("windows") {
|
||||
sources.push("emutls.c");
|
||||
}
|
||||
|
||||
if target.contains("msvc") {
|
||||
if target.contains("x86_64") {
|
||||
sources.extend(vec![
|
||||
"x86_64/floatdidf.c",
|
||||
"x86_64/floatdisf.c",
|
||||
"x86_64/floatdixf.c",
|
||||
]);
|
||||
}
|
||||
} else {
|
||||
if !target.contains("freebsd") {
|
||||
sources.push("gcc_personality_v0.c");
|
||||
}
|
||||
|
||||
if target.contains("x86_64") {
|
||||
sources.extend(vec![
|
||||
"x86_64/chkstk.S",
|
||||
"x86_64/chkstk2.S",
|
||||
"x86_64/floatdidf.c",
|
||||
"x86_64/floatdisf.c",
|
||||
"x86_64/floatdixf.c",
|
||||
"x86_64/floatundidf.S",
|
||||
"x86_64/floatundisf.S",
|
||||
"x86_64/floatundixf.S",
|
||||
]);
|
||||
}
|
||||
|
||||
if target.contains("i386") ||
|
||||
target.contains("i586") ||
|
||||
target.contains("i686") {
|
||||
sources.extend(vec![
|
||||
"i386/ashldi3.S",
|
||||
"i386/ashrdi3.S",
|
||||
"i386/chkstk.S",
|
||||
"i386/chkstk2.S",
|
||||
"i386/divdi3.S",
|
||||
"i386/floatdidf.S",
|
||||
"i386/floatdisf.S",
|
||||
"i386/floatdixf.S",
|
||||
"i386/floatundidf.S",
|
||||
"i386/floatundisf.S",
|
||||
"i386/floatundixf.S",
|
||||
"i386/lshrdi3.S",
|
||||
"i386/moddi3.S",
|
||||
"i386/muldi3.S",
|
||||
"i386/udivdi3.S",
|
||||
"i386/umoddi3.S",
|
||||
]);
|
||||
}
|
||||
}
|
||||
|
||||
if target.contains("arm") && !target.contains("ios") {
|
||||
sources.extend(vec![
|
||||
"arm/aeabi_cdcmp.S",
|
||||
"arm/aeabi_cdcmpeq_check_nan.c",
|
||||
"arm/aeabi_cfcmp.S",
|
||||
"arm/aeabi_cfcmpeq_check_nan.c",
|
||||
"arm/aeabi_dcmp.S",
|
||||
"arm/aeabi_div0.c",
|
||||
"arm/aeabi_drsub.c",
|
||||
"arm/aeabi_fcmp.S",
|
||||
"arm/aeabi_frsub.c",
|
||||
"arm/aeabi_idivmod.S",
|
||||
"arm/aeabi_ldivmod.S",
|
||||
"arm/aeabi_memcmp.S",
|
||||
"arm/aeabi_memcpy.S",
|
||||
"arm/aeabi_memmove.S",
|
||||
"arm/aeabi_memset.S",
|
||||
"arm/aeabi_uidivmod.S",
|
||||
"arm/aeabi_uldivmod.S",
|
||||
"arm/bswapdi2.S",
|
||||
"arm/bswapsi2.S",
|
||||
"arm/clzdi2.S",
|
||||
"arm/clzsi2.S",
|
||||
"arm/comparesf2.S",
|
||||
"arm/divmodsi4.S",
|
||||
"arm/divsi3.S",
|
||||
"arm/modsi3.S",
|
||||
"arm/switch16.S",
|
||||
"arm/switch32.S",
|
||||
"arm/switch8.S",
|
||||
"arm/switchu8.S",
|
||||
"arm/sync_synchronize.S",
|
||||
"arm/udivmodsi4.S",
|
||||
"arm/udivsi3.S",
|
||||
"arm/umodsi3.S",
|
||||
]);
|
||||
}
|
||||
|
||||
if target.contains("armv7") {
|
||||
sources.extend(vec![
|
||||
"arm/sync_fetch_and_add_4.S",
|
||||
"arm/sync_fetch_and_add_8.S",
|
||||
"arm/sync_fetch_and_and_4.S",
|
||||
"arm/sync_fetch_and_and_8.S",
|
||||
"arm/sync_fetch_and_max_4.S",
|
||||
"arm/sync_fetch_and_max_8.S",
|
||||
"arm/sync_fetch_and_min_4.S",
|
||||
"arm/sync_fetch_and_min_8.S",
|
||||
"arm/sync_fetch_and_nand_4.S",
|
||||
"arm/sync_fetch_and_nand_8.S",
|
||||
"arm/sync_fetch_and_or_4.S",
|
||||
"arm/sync_fetch_and_or_8.S",
|
||||
"arm/sync_fetch_and_sub_4.S",
|
||||
"arm/sync_fetch_and_sub_8.S",
|
||||
"arm/sync_fetch_and_umax_4.S",
|
||||
"arm/sync_fetch_and_umax_8.S",
|
||||
"arm/sync_fetch_and_umin_4.S",
|
||||
"arm/sync_fetch_and_umin_8.S",
|
||||
"arm/sync_fetch_and_xor_4.S",
|
||||
"arm/sync_fetch_and_xor_8.S",
|
||||
]);
|
||||
}
|
||||
|
||||
if target.contains("eabihf") {
|
||||
sources.extend(vec![
|
||||
"arm/adddf3vfp.S",
|
||||
"arm/addsf3vfp.S",
|
||||
"arm/divdf3vfp.S",
|
||||
"arm/divsf3vfp.S",
|
||||
"arm/eqdf2vfp.S",
|
||||
"arm/eqsf2vfp.S",
|
||||
"arm/extendsfdf2vfp.S",
|
||||
"arm/fixdfsivfp.S",
|
||||
"arm/fixsfsivfp.S",
|
||||
"arm/fixunsdfsivfp.S",
|
||||
"arm/fixunssfsivfp.S",
|
||||
"arm/floatsidfvfp.S",
|
||||
"arm/floatsisfvfp.S",
|
||||
"arm/floatunssidfvfp.S",
|
||||
"arm/floatunssisfvfp.S",
|
||||
"arm/gedf2vfp.S",
|
||||
"arm/gesf2vfp.S",
|
||||
"arm/gtdf2vfp.S",
|
||||
"arm/gtsf2vfp.S",
|
||||
"arm/ledf2vfp.S",
|
||||
"arm/lesf2vfp.S",
|
||||
"arm/ltdf2vfp.S",
|
||||
"arm/ltsf2vfp.S",
|
||||
"arm/muldf3vfp.S",
|
||||
"arm/mulsf3vfp.S",
|
||||
"arm/negdf2vfp.S",
|
||||
"arm/negsf2vfp.S",
|
||||
"arm/nedf2vfp.S",
|
||||
"arm/nesf2vfp.S",
|
||||
"arm/restore_vfp_d8_d15_regs.S",
|
||||
"arm/save_vfp_d8_d15_regs.S",
|
||||
"arm/subdf3vfp.S",
|
||||
"arm/subsf3vfp.S",
|
||||
"arm/truncdfsf2vfp.S",
|
||||
"arm/unorddf2vfp.S",
|
||||
"arm/unordsf2vfp.S",
|
||||
]);
|
||||
}
|
||||
|
||||
if target.contains("aarch64") {
|
||||
sources.extend(vec![
|
||||
"comparetf2.c",
|
||||
"extenddftf2.c",
|
||||
"extendsftf2.c",
|
||||
"fixtfdi.c",
|
||||
"fixtfsi.c",
|
||||
"fixtfti.c",
|
||||
"fixunstfdi.c",
|
||||
"fixunstfsi.c",
|
||||
"fixunstfti.c",
|
||||
"floatditf.c",
|
||||
"floatsitf.c",
|
||||
"floatunditf.c",
|
||||
"floatunsitf.c",
|
||||
"multc3.c",
|
||||
"trunctfdf2.c",
|
||||
"trunctfsf2.c",
|
||||
]);
|
||||
}
|
||||
|
||||
let mut out_of_date = false;
|
||||
for src in sources {
|
||||
let src = build.src.join("src/compiler-rt/lib/builtins").join(src);
|
||||
out_of_date = out_of_date || !up_to_date(&src, &output);
|
||||
cfg.file(src);
|
||||
}
|
||||
if !out_of_date {
|
||||
return
|
||||
}
|
||||
cfg.compile("libcompiler-rt.a");
|
||||
}
|
||||
|
||||
/// Compiles the `rust_test_helpers.c` library which we used in various
|
||||
/// `run-pass` test suites for ABI testing.
|
||||
pub fn test_helpers(build: &Build, target: &str) {
|
||||
|
|
|
@ -82,7 +82,6 @@ macro_rules! targets {
|
|||
// There aren't really any parameters to this, but empty structs
|
||||
// with braces are unstable so we just pick something that works.
|
||||
(llvm, Llvm { _dummy: () }),
|
||||
(compiler_rt, CompilerRt { _dummy: () }),
|
||||
(test_helpers, TestHelpers { _dummy: () }),
|
||||
(debugger_scripts, DebuggerScripts { stage: u32 }),
|
||||
|
||||
|
@ -334,8 +333,7 @@ pub fn deps(&self, build: &'a Build) -> Vec<Step<'a>> {
|
|||
vec![self.libstd(compiler)]
|
||||
}
|
||||
Source::Libstd { compiler } => {
|
||||
vec![self.compiler_rt(()),
|
||||
self.rustc(compiler.stage).target(compiler.host)]
|
||||
vec![self.rustc(compiler.stage).target(compiler.host)]
|
||||
}
|
||||
Source::LibrustcLink { compiler, host } => {
|
||||
vec![self.librustc(compiler),
|
||||
|
@ -348,7 +346,6 @@ pub fn deps(&self, build: &'a Build) -> Vec<Step<'a>> {
|
|||
vec![self.libstd(compiler),
|
||||
self.target(host).rustc(compiler.stage)]
|
||||
}
|
||||
Source::CompilerRt { _dummy } => Vec::new(),
|
||||
Source::Llvm { _dummy } => Vec::new(),
|
||||
Source::TestHelpers { _dummy } => Vec::new(),
|
||||
Source::DebuggerScripts { stage: _ } => Vec::new(),
|
||||
|
|
15
src/libcompiler_builtins/Cargo.toml
Normal file
15
src/libcompiler_builtins/Cargo.toml
Normal file
|
@ -0,0 +1,15 @@
|
|||
[package]
|
||||
authors = ["The Rust Project Developers"]
|
||||
build = "build.rs"
|
||||
name = "compiler_builtins"
|
||||
version = "0.0.0"
|
||||
|
||||
[lib]
|
||||
name = "compiler_builtins"
|
||||
path = "lib.rs"
|
||||
|
||||
[dependencies]
|
||||
core = { path = "../libcore" }
|
||||
|
||||
[build-dependencies]
|
||||
gcc = "0.3.27"
|
402
src/libcompiler_builtins/build.rs
Normal file
402
src/libcompiler_builtins/build.rs
Normal file
|
@ -0,0 +1,402 @@
|
|||
// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
|
||||
// file at the top-level directory of this distribution and at
|
||||
// http://rust-lang.org/COPYRIGHT.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
|
||||
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
|
||||
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
|
||||
// option. This file may not be copied, modified, or distributed
|
||||
// except according to those terms.
|
||||
|
||||
//! Compiles the `compiler-rt` library, or at least the builtins part of it.
|
||||
//!
|
||||
//! Note that while compiler-rt has a build system associated with it, we
|
||||
//! specifically don't use it here. The compiler-rt build system, written in
|
||||
//! CMake, is actually *very* difficult to work with in terms of getting it to
|
||||
//! compile on all the relevant platforms we want it to compile on. In the end
|
||||
//! it became so much pain to work with local patches, work around the oddities
|
||||
//! of the build system, etc, that we're just building everything by hand now.
|
||||
//!
|
||||
//! In general compiler-rt is just a bunch of intrinsics that are in practice
|
||||
//! *very* stable. We just need to make sure that all the relevant functions and
|
||||
//! such are compiled somewhere and placed in an object file somewhere.
|
||||
//! Eventually, these should all be written in Rust!
|
||||
//!
|
||||
//! So below you'll find a listing of every single file in the compiler-rt repo
|
||||
//! that we're compiling. We just reach in and compile with the `gcc` crate
|
||||
//! which should have all the relevant flags and such already configured.
|
||||
//!
|
||||
//! The risk here is that if we update compiler-rt we may need to compile some
|
||||
//! new intrinsics, but to be honest we surely don't use all of the intrinsics
|
||||
//! listed below today so the likelihood of us actually needing a new intrinsic
|
||||
//! is quite low. The failure case is also just that someone reports a link
|
||||
//! error (if any) and then we just add it to the list. Overall, that cost is
|
||||
//! far far less than working with compiler-rt's build system over time.
|
||||
|
||||
extern crate gcc;
|
||||
|
||||
use std::collections::BTreeMap;
|
||||
use std::env;
|
||||
use std::path::Path;
|
||||
|
||||
struct Sources {
|
||||
// SYMBOL -> PATH TO SOURCE
|
||||
map: BTreeMap<&'static str, &'static str>,
|
||||
}
|
||||
|
||||
impl Sources {
|
||||
fn new() -> Sources {
|
||||
Sources { map: BTreeMap::new() }
|
||||
}
|
||||
|
||||
fn extend(&mut self, sources: &[&'static str]) {
|
||||
// NOTE Some intrinsics have both a generic implementation (e.g. `floatdidf.c`) and an arch
|
||||
// optimized implementation (`x86_64/floatdidf.c`). In those cases, we keep the arch
|
||||
// optimized implementation and discard the generic implementation. If we don't and keep
|
||||
// both implementations, the linker will yell at us about duplicate symbols!
|
||||
for &src in sources {
|
||||
let symbol = Path::new(src).file_stem().unwrap().to_str().unwrap();
|
||||
if src.contains("/") {
|
||||
// Arch-optimized implementation (preferred)
|
||||
self.map.insert(symbol, src);
|
||||
} else {
|
||||
// Generic implementation
|
||||
if !self.map.contains_key(symbol) {
|
||||
self.map.insert(symbol, src);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn main() {
|
||||
let target = env::var("TARGET").unwrap();
|
||||
let cfg = &mut gcc::Config::new();
|
||||
|
||||
if target.contains("msvc") {
|
||||
// Don't pull in extra libraries on MSVC
|
||||
cfg.flag("/Zl");
|
||||
|
||||
// Emulate C99 and C++11's __func__ for MSVC prior to 2013 CTP
|
||||
cfg.define("__func__", Some("__FUNCTION__"));
|
||||
} else {
|
||||
// Turn off various features of gcc and such, mostly copying
|
||||
// compiler-rt's build system already
|
||||
cfg.flag("-fno-builtin");
|
||||
cfg.flag("-fvisibility=hidden");
|
||||
cfg.flag("-fomit-frame-pointer");
|
||||
cfg.flag("-ffreestanding");
|
||||
}
|
||||
|
||||
let mut sources = Sources::new();
|
||||
sources.extend(&["absvdi2.c",
|
||||
"absvsi2.c",
|
||||
"adddf3.c",
|
||||
"addsf3.c",
|
||||
"addvdi3.c",
|
||||
"addvsi3.c",
|
||||
"apple_versioning.c",
|
||||
"ashldi3.c",
|
||||
"ashrdi3.c",
|
||||
"clear_cache.c",
|
||||
"clzdi2.c",
|
||||
"clzsi2.c",
|
||||
"cmpdi2.c",
|
||||
"comparedf2.c",
|
||||
"comparesf2.c",
|
||||
"ctzdi2.c",
|
||||
"ctzsi2.c",
|
||||
"divdc3.c",
|
||||
"divdf3.c",
|
||||
"divdi3.c",
|
||||
"divmoddi4.c",
|
||||
"divmodsi4.c",
|
||||
"divsc3.c",
|
||||
"divsf3.c",
|
||||
"divsi3.c",
|
||||
"divxc3.c",
|
||||
"extendsfdf2.c",
|
||||
"extendhfsf2.c",
|
||||
"ffsdi2.c",
|
||||
"fixdfdi.c",
|
||||
"fixdfsi.c",
|
||||
"fixsfdi.c",
|
||||
"fixsfsi.c",
|
||||
"fixunsdfdi.c",
|
||||
"fixunsdfsi.c",
|
||||
"fixunssfdi.c",
|
||||
"fixunssfsi.c",
|
||||
"fixunsxfdi.c",
|
||||
"fixunsxfsi.c",
|
||||
"fixxfdi.c",
|
||||
"floatdidf.c",
|
||||
"floatdisf.c",
|
||||
"floatdixf.c",
|
||||
"floatsidf.c",
|
||||
"floatsisf.c",
|
||||
"floatundidf.c",
|
||||
"floatundisf.c",
|
||||
"floatundixf.c",
|
||||
"floatunsidf.c",
|
||||
"floatunsisf.c",
|
||||
"int_util.c",
|
||||
"lshrdi3.c",
|
||||
"moddi3.c",
|
||||
"modsi3.c",
|
||||
"muldc3.c",
|
||||
"muldf3.c",
|
||||
"muldi3.c",
|
||||
"mulodi4.c",
|
||||
"mulosi4.c",
|
||||
"muloti4.c",
|
||||
"mulsc3.c",
|
||||
"mulsf3.c",
|
||||
"mulvdi3.c",
|
||||
"mulvsi3.c",
|
||||
"mulxc3.c",
|
||||
"negdf2.c",
|
||||
"negdi2.c",
|
||||
"negsf2.c",
|
||||
"negvdi2.c",
|
||||
"negvsi2.c",
|
||||
"paritydi2.c",
|
||||
"paritysi2.c",
|
||||
"popcountdi2.c",
|
||||
"popcountsi2.c",
|
||||
"powidf2.c",
|
||||
"powisf2.c",
|
||||
"powixf2.c",
|
||||
"subdf3.c",
|
||||
"subsf3.c",
|
||||
"subvdi3.c",
|
||||
"subvsi3.c",
|
||||
"truncdfhf2.c",
|
||||
"truncdfsf2.c",
|
||||
"truncsfhf2.c",
|
||||
"ucmpdi2.c",
|
||||
"udivdi3.c",
|
||||
"udivmoddi4.c",
|
||||
"udivmodsi4.c",
|
||||
"udivsi3.c",
|
||||
"umoddi3.c",
|
||||
"umodsi3.c"]);
|
||||
|
||||
if !target.contains("ios") {
|
||||
sources.extend(&["absvti2.c",
|
||||
"addtf3.c",
|
||||
"addvti3.c",
|
||||
"ashlti3.c",
|
||||
"ashrti3.c",
|
||||
"clzti2.c",
|
||||
"cmpti2.c",
|
||||
"ctzti2.c",
|
||||
"divtf3.c",
|
||||
"divti3.c",
|
||||
"ffsti2.c",
|
||||
"fixdfti.c",
|
||||
"fixsfti.c",
|
||||
"fixunsdfti.c",
|
||||
"fixunssfti.c",
|
||||
"fixunsxfti.c",
|
||||
"fixxfti.c",
|
||||
"floattidf.c",
|
||||
"floattisf.c",
|
||||
"floattixf.c",
|
||||
"floatuntidf.c",
|
||||
"floatuntisf.c",
|
||||
"floatuntixf.c",
|
||||
"lshrti3.c",
|
||||
"modti3.c",
|
||||
"multf3.c",
|
||||
"multi3.c",
|
||||
"mulvti3.c",
|
||||
"negti2.c",
|
||||
"negvti2.c",
|
||||
"parityti2.c",
|
||||
"popcountti2.c",
|
||||
"powitf2.c",
|
||||
"subtf3.c",
|
||||
"subvti3.c",
|
||||
"trampoline_setup.c",
|
||||
"ucmpti2.c",
|
||||
"udivmodti4.c",
|
||||
"udivti3.c",
|
||||
"umodti3.c"]);
|
||||
}
|
||||
|
||||
if target.contains("apple") {
|
||||
sources.extend(&["atomic_flag_clear.c",
|
||||
"atomic_flag_clear_explicit.c",
|
||||
"atomic_flag_test_and_set.c",
|
||||
"atomic_flag_test_and_set_explicit.c",
|
||||
"atomic_signal_fence.c",
|
||||
"atomic_thread_fence.c"]);
|
||||
}
|
||||
|
||||
if !target.contains("windows") {
|
||||
sources.extend(&["emutls.c"]);
|
||||
}
|
||||
|
||||
if target.contains("msvc") {
|
||||
if target.contains("x86_64") {
|
||||
sources.extend(&["x86_64/floatdidf.c", "x86_64/floatdisf.c", "x86_64/floatdixf.c"]);
|
||||
}
|
||||
} else {
|
||||
if !target.contains("freebsd") {
|
||||
sources.extend(&["gcc_personality_v0.c"]);
|
||||
}
|
||||
|
||||
if target.contains("x86_64") {
|
||||
sources.extend(&["x86_64/chkstk.S",
|
||||
"x86_64/chkstk2.S",
|
||||
"x86_64/floatdidf.c",
|
||||
"x86_64/floatdisf.c",
|
||||
"x86_64/floatdixf.c",
|
||||
"x86_64/floatundidf.S",
|
||||
"x86_64/floatundisf.S",
|
||||
"x86_64/floatundixf.S"]);
|
||||
}
|
||||
|
||||
if target.contains("i386") || target.contains("i586") || target.contains("i686") {
|
||||
sources.extend(&["i386/ashldi3.S",
|
||||
"i386/ashrdi3.S",
|
||||
"i386/chkstk.S",
|
||||
"i386/chkstk2.S",
|
||||
"i386/divdi3.S",
|
||||
"i386/floatdidf.S",
|
||||
"i386/floatdisf.S",
|
||||
"i386/floatdixf.S",
|
||||
"i386/floatundidf.S",
|
||||
"i386/floatundisf.S",
|
||||
"i386/floatundixf.S",
|
||||
"i386/lshrdi3.S",
|
||||
"i386/moddi3.S",
|
||||
"i386/muldi3.S",
|
||||
"i386/udivdi3.S",
|
||||
"i386/umoddi3.S"]);
|
||||
}
|
||||
}
|
||||
|
||||
if target.contains("arm") && !target.contains("ios") {
|
||||
sources.extend(&["arm/aeabi_cdcmp.S",
|
||||
"arm/aeabi_cdcmpeq_check_nan.c",
|
||||
"arm/aeabi_cfcmp.S",
|
||||
"arm/aeabi_cfcmpeq_check_nan.c",
|
||||
"arm/aeabi_dcmp.S",
|
||||
"arm/aeabi_div0.c",
|
||||
"arm/aeabi_drsub.c",
|
||||
"arm/aeabi_fcmp.S",
|
||||
"arm/aeabi_frsub.c",
|
||||
"arm/aeabi_idivmod.S",
|
||||
"arm/aeabi_ldivmod.S",
|
||||
"arm/aeabi_memcmp.S",
|
||||
"arm/aeabi_memcpy.S",
|
||||
"arm/aeabi_memmove.S",
|
||||
"arm/aeabi_memset.S",
|
||||
"arm/aeabi_uidivmod.S",
|
||||
"arm/aeabi_uldivmod.S",
|
||||
"arm/bswapdi2.S",
|
||||
"arm/bswapsi2.S",
|
||||
"arm/clzdi2.S",
|
||||
"arm/clzsi2.S",
|
||||
"arm/comparesf2.S",
|
||||
"arm/divmodsi4.S",
|
||||
"arm/divsi3.S",
|
||||
"arm/modsi3.S",
|
||||
"arm/switch16.S",
|
||||
"arm/switch32.S",
|
||||
"arm/switch8.S",
|
||||
"arm/switchu8.S",
|
||||
"arm/sync_synchronize.S",
|
||||
"arm/udivmodsi4.S",
|
||||
"arm/udivsi3.S",
|
||||
"arm/umodsi3.S"]);
|
||||
}
|
||||
|
||||
if target.contains("armv7") {
|
||||
sources.extend(&["arm/sync_fetch_and_add_4.S",
|
||||
"arm/sync_fetch_and_add_8.S",
|
||||
"arm/sync_fetch_and_and_4.S",
|
||||
"arm/sync_fetch_and_and_8.S",
|
||||
"arm/sync_fetch_and_max_4.S",
|
||||
"arm/sync_fetch_and_max_8.S",
|
||||
"arm/sync_fetch_and_min_4.S",
|
||||
"arm/sync_fetch_and_min_8.S",
|
||||
"arm/sync_fetch_and_nand_4.S",
|
||||
"arm/sync_fetch_and_nand_8.S",
|
||||
"arm/sync_fetch_and_or_4.S",
|
||||
"arm/sync_fetch_and_or_8.S",
|
||||
"arm/sync_fetch_and_sub_4.S",
|
||||
"arm/sync_fetch_and_sub_8.S",
|
||||
"arm/sync_fetch_and_umax_4.S",
|
||||
"arm/sync_fetch_and_umax_8.S",
|
||||
"arm/sync_fetch_and_umin_4.S",
|
||||
"arm/sync_fetch_and_umin_8.S",
|
||||
"arm/sync_fetch_and_xor_4.S",
|
||||
"arm/sync_fetch_and_xor_8.S"]);
|
||||
}
|
||||
|
||||
if target.contains("eabihf") {
|
||||
sources.extend(&["arm/adddf3vfp.S",
|
||||
"arm/addsf3vfp.S",
|
||||
"arm/divdf3vfp.S",
|
||||
"arm/divsf3vfp.S",
|
||||
"arm/eqdf2vfp.S",
|
||||
"arm/eqsf2vfp.S",
|
||||
"arm/extendsfdf2vfp.S",
|
||||
"arm/fixdfsivfp.S",
|
||||
"arm/fixsfsivfp.S",
|
||||
"arm/fixunsdfsivfp.S",
|
||||
"arm/fixunssfsivfp.S",
|
||||
"arm/floatsidfvfp.S",
|
||||
"arm/floatsisfvfp.S",
|
||||
"arm/floatunssidfvfp.S",
|
||||
"arm/floatunssisfvfp.S",
|
||||
"arm/gedf2vfp.S",
|
||||
"arm/gesf2vfp.S",
|
||||
"arm/gtdf2vfp.S",
|
||||
"arm/gtsf2vfp.S",
|
||||
"arm/ledf2vfp.S",
|
||||
"arm/lesf2vfp.S",
|
||||
"arm/ltdf2vfp.S",
|
||||
"arm/ltsf2vfp.S",
|
||||
"arm/muldf3vfp.S",
|
||||
"arm/mulsf3vfp.S",
|
||||
"arm/negdf2vfp.S",
|
||||
"arm/negsf2vfp.S",
|
||||
"arm/nedf2vfp.S",
|
||||
"arm/nesf2vfp.S",
|
||||
"arm/restore_vfp_d8_d15_regs.S",
|
||||
"arm/save_vfp_d8_d15_regs.S",
|
||||
"arm/subdf3vfp.S",
|
||||
"arm/subsf3vfp.S",
|
||||
"arm/truncdfsf2vfp.S",
|
||||
"arm/unorddf2vfp.S",
|
||||
"arm/unordsf2vfp.S"]);
|
||||
}
|
||||
|
||||
if target.contains("aarch64") {
|
||||
sources.extend(&["comparetf2.c",
|
||||
"extenddftf2.c",
|
||||
"extendsftf2.c",
|
||||
"fixtfdi.c",
|
||||
"fixtfsi.c",
|
||||
"fixtfti.c",
|
||||
"fixunstfdi.c",
|
||||
"fixunstfsi.c",
|
||||
"fixunstfti.c",
|
||||
"floatditf.c",
|
||||
"floatsitf.c",
|
||||
"floatunditf.c",
|
||||
"floatunsitf.c",
|
||||
"multc3.c",
|
||||
"trunctfdf2.c",
|
||||
"trunctfsf2.c"]);
|
||||
}
|
||||
|
||||
for src in sources.map.values() {
|
||||
cfg.file(Path::new("../compiler-rt/lib/builtins").join(src));
|
||||
}
|
||||
|
||||
cfg.compile("libcompiler-rt.a");
|
||||
}
|
16
src/libcompiler_builtins/lib.rs
Normal file
16
src/libcompiler_builtins/lib.rs
Normal file
|
@ -0,0 +1,16 @@
|
|||
// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
|
||||
// file at the top-level directory of this distribution and at
|
||||
// http://rust-lang.org/COPYRIGHT.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
|
||||
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
|
||||
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
|
||||
// option. This file may not be copied, modified, or distributed
|
||||
// except according to those terms.
|
||||
|
||||
#![cfg_attr(not(stage0), feature(compiler_builtins))]
|
||||
#![no_std]
|
||||
#![cfg_attr(not(stage0), compiler_builtins)]
|
||||
|
||||
#![crate_name = "compiler_builtins"]
|
||||
#![crate_type = "rlib"]
|
|
@ -210,6 +210,7 @@ fn dylib_dependency_formats(&self, cnum: ast::CrateNum)
|
|||
fn is_explicitly_linked(&self, cnum: ast::CrateNum) -> bool;
|
||||
fn is_allocator(&self, cnum: ast::CrateNum) -> bool;
|
||||
fn is_panic_runtime(&self, cnum: ast::CrateNum) -> bool;
|
||||
fn is_compiler_builtins(&self, cnum: ast::CrateNum) -> bool;
|
||||
fn panic_strategy(&self, cnum: ast::CrateNum) -> PanicStrategy;
|
||||
fn extern_crate(&self, cnum: ast::CrateNum) -> Option<ExternCrate>;
|
||||
fn crate_attrs(&self, cnum: ast::CrateNum) -> Vec<ast::Attribute>;
|
||||
|
@ -405,6 +406,7 @@ fn is_staged_api(&self, cnum: ast::CrateNum) -> bool { bug!("is_staged_api") }
|
|||
fn is_explicitly_linked(&self, cnum: ast::CrateNum) -> bool { bug!("is_explicitly_linked") }
|
||||
fn is_allocator(&self, cnum: ast::CrateNum) -> bool { bug!("is_allocator") }
|
||||
fn is_panic_runtime(&self, cnum: ast::CrateNum) -> bool { bug!("is_panic_runtime") }
|
||||
fn is_compiler_builtins(&self, cnum: ast::CrateNum) -> bool { bug!("is_compiler_builtins") }
|
||||
fn panic_strategy(&self, cnum: ast::CrateNum) -> PanicStrategy {
|
||||
bug!("panic_strategy")
|
||||
}
|
||||
|
|
|
@ -18,7 +18,6 @@ pub fn target() -> Result<Target, String> {
|
|||
dynamic_linking: false,
|
||||
executables: true,
|
||||
exe_suffix: ".js".to_string(),
|
||||
no_compiler_rt: true,
|
||||
linker_is_gnu: true,
|
||||
allow_asm: false,
|
||||
obj_is_bitcode: true,
|
||||
|
|
|
@ -22,7 +22,6 @@ pub fn target() -> TargetResult {
|
|||
dynamic_linking: false,
|
||||
executables: true,
|
||||
exe_suffix: ".pexe".to_string(),
|
||||
no_compiler_rt: false,
|
||||
linker_is_gnu: true,
|
||||
allow_asm: false,
|
||||
max_atomic_width: 32,
|
||||
|
|
|
@ -306,9 +306,6 @@ pub struct TargetOptions {
|
|||
pub allows_weak_linkage: bool,
|
||||
/// Whether the linker support rpaths or not. Defaults to false.
|
||||
pub has_rpath: bool,
|
||||
/// Whether to disable linking to compiler-rt. Defaults to false, as LLVM
|
||||
/// will emit references to the functions that compiler-rt provides.
|
||||
pub no_compiler_rt: bool,
|
||||
/// Whether to disable linking to the default libraries, typically corresponds
|
||||
/// to `-nodefaultlibs`. Defaults to true.
|
||||
pub no_default_libraries: bool,
|
||||
|
@ -381,7 +378,6 @@ fn default() -> TargetOptions {
|
|||
linker_is_gnu: false,
|
||||
allows_weak_linkage: true,
|
||||
has_rpath: false,
|
||||
no_compiler_rt: false,
|
||||
no_default_libraries: true,
|
||||
position_independent_executables: false,
|
||||
pre_link_objects_exe: Vec::new(),
|
||||
|
@ -524,7 +520,6 @@ macro_rules! key {
|
|||
key!(linker_is_gnu, bool);
|
||||
key!(allows_weak_linkage, bool);
|
||||
key!(has_rpath, bool);
|
||||
key!(no_compiler_rt, bool);
|
||||
key!(no_default_libraries, bool);
|
||||
key!(position_independent_executables, bool);
|
||||
key!(archive_format);
|
||||
|
@ -667,7 +662,6 @@ macro_rules! target_option_val {
|
|||
target_option_val!(linker_is_gnu);
|
||||
target_option_val!(allows_weak_linkage);
|
||||
target_option_val!(has_rpath);
|
||||
target_option_val!(no_compiler_rt);
|
||||
target_option_val!(no_default_libraries);
|
||||
target_option_val!(position_independent_executables);
|
||||
target_option_val!(archive_format);
|
||||
|
|
|
@ -346,6 +346,10 @@ fn is_panic_runtime(&self, cnum: ast::CrateNum) -> bool
|
|||
self.get_crate_data(cnum).is_panic_runtime()
|
||||
}
|
||||
|
||||
fn is_compiler_builtins(&self, cnum: ast::CrateNum) -> bool {
|
||||
self.get_crate_data(cnum).is_compiler_builtins()
|
||||
}
|
||||
|
||||
fn panic_strategy(&self, cnum: ast::CrateNum) -> PanicStrategy {
|
||||
self.get_crate_data(cnum).panic_strategy()
|
||||
}
|
||||
|
|
|
@ -340,6 +340,11 @@ pub fn needs_panic_runtime(&self) -> bool {
|
|||
attr::contains_name(&attrs, "needs_panic_runtime")
|
||||
}
|
||||
|
||||
pub fn is_compiler_builtins(&self) -> bool {
|
||||
let attrs = decoder::get_crate_attributes(self.data());
|
||||
attr::contains_name(&attrs, "compiler_builtins")
|
||||
}
|
||||
|
||||
pub fn panic_strategy(&self) -> PanicStrategy {
|
||||
decoder::get_panic_strategy(self.data())
|
||||
}
|
||||
|
|
|
@ -573,10 +573,6 @@ fn write_rlib_bytecode_object_v1(writer: &mut Write,
|
|||
fn link_staticlib(sess: &Session, objects: &[PathBuf], out_filename: &Path,
|
||||
tempdir: &Path) {
|
||||
let mut ab = link_rlib(sess, None, objects, out_filename, tempdir);
|
||||
if !sess.target.target.options.no_compiler_rt {
|
||||
ab.add_native_library("compiler-rt");
|
||||
}
|
||||
|
||||
let mut all_native_libs = vec![];
|
||||
|
||||
each_linked_rlib(sess, &mut |cnum, path| {
|
||||
|
@ -640,9 +636,6 @@ fn link_natively(sess: &Session,
|
|||
let mut linker = trans.linker_info.to_linker(&mut cmd, &sess);
|
||||
link_args(&mut *linker, sess, crate_type, tmpdir,
|
||||
objects, out_filename, outputs);
|
||||
if !sess.target.target.options.no_compiler_rt {
|
||||
linker.link_staticlib("compiler-rt");
|
||||
}
|
||||
}
|
||||
cmd.args(&sess.target.target.options.late_link_args);
|
||||
for obj in &sess.target.target.options.post_link_objects {
|
||||
|
@ -939,6 +932,12 @@ fn add_upstream_rust_crates(cmd: &mut Linker,
|
|||
// symbols from the dylib.
|
||||
let src = sess.cstore.used_crate_source(cnum);
|
||||
match data[cnum as usize - 1] {
|
||||
// We must always link the `compiler_builtins` crate statically. Even if it was already
|
||||
// "included" in a dylib (e.g. `libstd` when `-C prefer-dynamic` is used)
|
||||
_ if sess.cstore.is_compiler_builtins(cnum) => {
|
||||
add_static_crate(cmd, sess, tmpdir, crate_type,
|
||||
&src.rlib.unwrap().0, sess.cstore.is_no_builtins(cnum))
|
||||
}
|
||||
Linkage::NotLinked |
|
||||
Linkage::IncludedFromDylib => {}
|
||||
Linkage::Static => {
|
||||
|
|
|
@ -19,6 +19,7 @@ collections = { path = "../libcollections" }
|
|||
core = { path = "../libcore" }
|
||||
libc = { path = "../rustc/libc_shim" }
|
||||
rand = { path = "../librand" }
|
||||
compiler_builtins = { path = "../libcompiler_builtins" }
|
||||
rustc_unicode = { path = "../librustc_unicode" }
|
||||
unwind = { path = "../libunwind" }
|
||||
|
||||
|
|
|
@ -322,6 +322,9 @@
|
|||
#[cfg(stage0)]
|
||||
extern crate alloc_system;
|
||||
|
||||
// compiler-rt intrinsics
|
||||
extern crate compiler_builtins;
|
||||
|
||||
// Make std testable by not duplicating lang items and other globals. See #2912
|
||||
#[cfg(test)] extern crate std as realstd;
|
||||
|
||||
|
|
|
@ -298,6 +298,10 @@ pub fn new() -> Features {
|
|||
|
||||
// elide `'static` lifetimes in `static`s and `const`s
|
||||
(active, static_in_const, "1.13.0", Some(35897)),
|
||||
|
||||
// Used to identify the `compiler_builtins` crate
|
||||
// rustc internal
|
||||
(active, compiler_builtins, "1.13.0", None),
|
||||
);
|
||||
|
||||
declare_features! (
|
||||
|
@ -537,6 +541,12 @@ fn f(features: &Features) -> bool {
|
|||
libcore functions that are inlined \
|
||||
across crates and will never be stable",
|
||||
cfg_fn!(rustc_attrs))),
|
||||
("compiler_builtins", Whitelisted, Gated("compiler_builtins",
|
||||
"the `#[compiler_builtins]` attribute is used to \
|
||||
identify the `compiler_builtins` crate which \
|
||||
contains compiler-rt intrinsics and will never be \
|
||||
stable",
|
||||
cfg_fn!(compiler_builtins))),
|
||||
|
||||
("allow_internal_unstable", Normal, Gated("allow_internal_unstable",
|
||||
EXPLAIN_ALLOW_INTERNAL_UNSTABLE,
|
||||
|
|
9
src/rustc/std_shim/Cargo.lock
generated
9
src/rustc/std_shim/Cargo.lock
generated
|
@ -43,6 +43,14 @@ dependencies = [
|
|||
"rustc_unicode 0.0.0",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "compiler_builtins"
|
||||
version = "0.0.0"
|
||||
dependencies = [
|
||||
"core 0.0.0",
|
||||
"gcc 0.3.27 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "core"
|
||||
version = "0.0.0"
|
||||
|
@ -100,6 +108,7 @@ dependencies = [
|
|||
"alloc_system 0.0.0",
|
||||
"build_helper 0.1.0",
|
||||
"collections 0.0.0",
|
||||
"compiler_builtins 0.0.0",
|
||||
"core 0.0.0",
|
||||
"gcc 0.3.27 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"libc 0.0.0",
|
||||
|
|
14
src/test/compile-fail/feature-gate-compiler-builtins.rs
Normal file
14
src/test/compile-fail/feature-gate-compiler-builtins.rs
Normal file
|
@ -0,0 +1,14 @@
|
|||
// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
|
||||
// file at the top-level directory of this distribution and at
|
||||
// http://rust-lang.org/COPYRIGHT.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
|
||||
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
|
||||
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
|
||||
// option. This file may not be copied, modified, or distributed
|
||||
// except according to those terms.
|
||||
|
||||
#![compiler_builtins] //~ ERROR the `#[compiler_builtins]` attribute is
|
||||
|
||||
fn main() {}
|
||||
|
Loading…
Reference in a new issue