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mk: Add support for i686-pc-windows-msvc

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This commit modifies the configure script and our makefiles to support building
32-bit MSVC targets. The MSVC toolchain is now parameterized over whether it can
produce a 32-bit or 64-bit binary. The configure script was updated to export
more variables at configure time, and the makefiles were rejiggered to
selectively reexport the relevant environment variables for the applicable
targets they're going to run for.
This commit is contained in:
Alex Crichton 2015-06-25 15:30:00 -07:00
parent 2ba46f8bbc
commit ae36d4f72a
6 changed files with 138 additions and 35 deletions
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60
configure vendored
View File

@ -1114,7 +1114,7 @@ do
fi
;;
x86_64-*-msvc)
*-msvc)
# Currently the build system is not configured to build jemalloc
# with MSVC, so we omit this optional dependency.
step_msg "targeting MSVC, disabling jemalloc"
@ -1154,22 +1154,45 @@ do
CFG_MSVC_ROOT=$(echo "$install" | grep InstallDir | sed 's/.*REG_SZ[ ]*//')
CFG_MSVC_ROOT=$(dirname "$CFG_MSVC_ROOT")
CFG_MSVC_ROOT=$(dirname "$CFG_MSVC_ROOT")
CFG_MSVC_CL="${CFG_MSVC_ROOT}/VC/bin/amd64/cl.exe"
CFG_MSVC_LIB="${CFG_MSVC_ROOT}/VC/bin/amd64/lib.exe"
CFG_MSVC_LINK="${CFG_MSVC_ROOT}/VC/bin/amd64/link.exe"
putvar CFG_MSVC_ROOT
case $i in
x86_64-*)
bits=x86_64
msvc_part=amd64
;;
i686-*)
bits=i386
msvc_part=
;;
*)
err "can only target x86 targets for MSVC"
;;
esac
bindir="${CFG_MSVC_ROOT}/VC/bin"
if [ ! -z "$msvc_part" ]; then
bindir="$bindir/$msvc_part"
fi
eval CFG_MSVC_BINDIR_$bits="\"$bindir\""
eval CFG_MSVC_CL_$bits="\"$bindir/cl.exe\""
eval CFG_MSVC_LIB_$bits="\"$bindir/lib.exe\""
eval CFG_MSVC_LINK_$bits="\"$bindir/link.exe\""
vcvarsall="${CFG_MSVC_ROOT}/VC/vcvarsall.bat"
CFG_MSVC_INCLUDE_PATH=$(cmd /c "\"$vcvarsall\" amd64 && cmd /c echo %INCLUDE%")
include_path=$(cmd /c "\"$vcvarsall\" $msvc_part && cmd /c echo %INCLUDE%")
need_ok "failed to learn about MSVC's INCLUDE"
CFG_MSVC_LIB_PATH=$(cmd /c "\"$vcvarsall\" amd64 && cmd /c echo %LIB%")
lib_path=$(cmd /c "\"$vcvarsall\" $msvc_part && cmd /c echo %LIB%")
need_ok "failed to learn about MSVC's LIB"
putvar CFG_MSVC_ROOT
putvar CFG_MSVC_CL
putvar CFG_MSVC_LIB
putvar CFG_MSVC_LINK
putvar CFG_MSVC_INCLUDE_PATH
putvar CFG_MSVC_LIB_PATH
eval CFG_MSVC_INCLUDE_PATH_${bits}="\"$include_path\""
eval CFG_MSVC_LIB_PATH_${bits}="\"$lib_path\""
putvar CFG_MSVC_BINDIR_${bits}
putvar CFG_MSVC_CL_${bits}
putvar CFG_MSVC_LIB_${bits}
putvar CFG_MSVC_LINK_${bits}
putvar CFG_MSVC_INCLUDE_PATH_${bits}
putvar CFG_MSVC_LIB_PATH_${bits}
;;
*)
@ -1408,8 +1431,19 @@ do
msg "configuring LLVM with:"
msg "$CMAKE_ARGS"
case "$t" in
x86_64-*)
generator="Visual Studio 12 2013 Win64"
;;
i686-*)
generator="Visual Studio 12 2013"
;;
*)
err "can only build LLVM for x86 platforms"
;;
esac
(cd $LLVM_BUILD_DIR && "$CFG_CMAKE" $CFG_LLVM_SRC_DIR \
-G "Visual Studio 12 2013 Win64" \
-G "$generator" \
$CMAKE_ARGS)
need_ok "LLVM cmake configure failed"
fi

29
mk/cfg/i686-pc-windows-msvc.mk Normal file
View File

@ -0,0 +1,29 @@
# i686-pc-windows-msvc configuration
CC_i686-pc-windows-msvc="$(CFG_MSVC_CL_i386)" -nologo
LINK_i686-pc-windows-msvc="$(CFG_MSVC_LINK_i386)" -nologo
CXX_i686-pc-windows-msvc="$(CFG_MSVC_CL_i386)" -nologo
CPP_i686-pc-windows-msvc="$(CFG_MSVC_CL_i386)" -nologo
AR_i686-pc-windows-msvc="$(CFG_MSVC_LIB_i386)" -nologo
CFG_LIB_NAME_i686-pc-windows-msvc=$(1).dll
CFG_STATIC_LIB_NAME_i686-pc-windows-msvc=$(1).lib
CFG_LIB_GLOB_i686-pc-windows-msvc=$(1)-*.{dll,lib}
CFG_LIB_DSYM_GLOB_i686-pc-windows-msvc=$(1)-*.dylib.dSYM
CFG_JEMALLOC_CFLAGS_i686-pc-windows-msvc :=
CFG_GCCISH_CFLAGS_i686-pc-windows-msvc := -MD
CFG_GCCISH_CXXFLAGS_i686-pc-windows-msvc := -MD
CFG_GCCISH_LINK_FLAGS_i686-pc-windows-msvc :=
CFG_GCCISH_DEF_FLAG_i686-pc-windows-msvc :=
CFG_LLC_FLAGS_i686-pc-windows-msvc :=
CFG_INSTALL_NAME_i686-pc-windows-msvc =
CFG_EXE_SUFFIX_i686-pc-windows-msvc := .exe
CFG_WINDOWSY_i686-pc-windows-msvc := 1
CFG_UNIXY_i686-pc-windows-msvc :=
CFG_LDPATH_i686-pc-windows-msvc :=
CFG_RUN_i686-pc-windows-msvc=$(2)
CFG_RUN_TARG_i686-pc-windows-msvc=$(call CFG_RUN_i686-pc-windows-msvc,,$(2))
CFG_GNU_TRIPLE_i686-pc-windows-msvc := i686-pc-win32
# All windows nightiles are currently a GNU triple, so this MSVC triple is not
# bootstrapping from itself. This is relevant during stage0, and other parts of
# the build system take this into account.
BOOTSTRAP_FROM_i686-pc-windows-msvc := i686-pc-windows-gnu

10
mk/cfg/x86_64-pc-windows-msvc.mk
View File

@ -1,9 +1,9 @@
# x86_64-pc-windows-msvc configuration
CC_x86_64-pc-windows-msvc="$(CFG_MSVC_CL)" -nologo
LINK_x86_64-pc-windows-msvc="$(CFG_MSVC_LINK)" -nologo
CXX_x86_64-pc-windows-msvc="$(CFG_MSVC_CL)" -nologo
CPP_x86_64-pc-windows-msvc="$(CFG_MSVC_CL)" -nologo
AR_x86_64-pc-windows-msvc="$(CFG_MSVC_LIB)" -nologo
CC_x86_64-pc-windows-msvc="$(CFG_MSVC_CL_x86_64)" -nologo
LINK_x86_64-pc-windows-msvc="$(CFG_MSVC_LINK_x86_64)" -nologo
CXX_x86_64-pc-windows-msvc="$(CFG_MSVC_CL_x86_64)" -nologo
CPP_x86_64-pc-windows-msvc="$(CFG_MSVC_CL_x86_64)" -nologo
AR_x86_64-pc-windows-msvc="$(CFG_MSVC_LIB_x86_64)" -nologo
CFG_LIB_NAME_x86_64-pc-windows-msvc=$(1).dll
CFG_STATIC_LIB_NAME_x86_64-pc-windows-msvc=$(1).lib
CFG_LIB_GLOB_x86_64-pc-windows-msvc=$(1)-*.{dll,lib}

18
mk/platform.mk
View File

@ -239,23 +239,6 @@ endef
$(foreach target,$(CFG_TARGET), \
$(eval $(call CFG_MAKE_TOOLCHAIN,$(target))))
# These two environment variables are scraped by the `./configure` script and
# are necessary for `cl.exe` to find standard headers (the INCLUDE variable) and
# for `link.exe` to find standard libraries (the LIB variable).
ifdef CFG_MSVC_INCLUDE_PATH
export INCLUDE := $(CFG_MSVC_INCLUDE_PATH)
endif
ifdef CFG_MSVC_LIB_PATH
export LIB := $(CFG_MSVC_LIB_PATH)
endif
# Unfortunately `link.exe` is also a program in `/usr/bin` on MinGW installs,
# but it's not the one that we want. As a result we make sure that our detected
# `link.exe` shows up in PATH first.
ifdef CFG_MSVC_LINK
export PATH := $(CFG_MSVC_ROOT)/VC/bin/amd64:$(PATH)
endif
# There are more comments about this available in the target specification for
# Windows MSVC in the compiler, but the gist of it is that we use `llvm-ar.exe`
# instead of `lib.exe` for assembling archives, so we need to inject this custom
@ -307,3 +290,4 @@ endef
$(foreach target,$(CFG_TARGET), \
$(eval $(call ADD_RUSTC_LLVM_DEF_TO_MSVC,$(target))))

19
mk/rt.mk
View File

@ -55,7 +55,11 @@ NATIVE_DEPS_rust_builtin_$(1) := rust_builtin.c \
rust_android_dummy.c
NATIVE_DEPS_rustrt_native_$(1) := arch/$$(HOST_$(1))/record_sp.S
ifeq ($$(findstring msvc,$(1)),msvc)
ifeq ($$(findstring i686,$(1)),i686)
NATIVE_DEPS_rustrt_native_$(1) += rust_try_msvc_32.ll
else
NATIVE_DEPS_rustrt_native_$(1) += rust_try_msvc_64.ll
endif
else
NATIVE_DEPS_rustrt_native_$(1) += rust_try.ll
endif
@ -93,6 +97,17 @@ $$(RT_OUTPUT_DIR_$(1))/%.o: $(S)src/rt/%.S $$(MKFILE_DEPS) \
@mkdir -p $$(@D)
@$$(call E, compile: $$@)
$$(Q)$$(call CFG_ASSEMBLE_$(1),$$@,$$<)
# On MSVC targets the compiler's default include path (e.g. where to find system
# headers) is specified by the INCLUDE environment variable. This may not be set
# so the ./configure script scraped the relevant values and this is the location
# that we put them into cl.exe's environment.
ifeq ($$(findstring msvc,$(1)),msvc)
$$(RT_OUTPUT_DIR_$(1))/%.o: \
export INCLUDE := $$(CFG_MSVC_INCLUDE_PATH_$$(HOST_$(1)))
$(1)/rustllvm/%.o: \
export INCLUDE := $$(CFG_MSVC_INCLUDE_PATH_$$(HOST_$(1)))
endif
endef
$(foreach target,$(CFG_TARGET),$(eval $(call NATIVE_LIBRARIES,$(target))))
@ -240,8 +255,12 @@ COMPRT_CFLAGS_$(1) := $$(CFG_GCCISH_CFLAGS_$(1))
ifeq ($$(findstring msvc,$(1)),msvc)
COMPRT_CC_$(1) := gcc
COMPRT_AR_$(1) := ar
ifeq ($$(findstring i686,$(1)),i686)
COMPRT_CFLAGS_$(1) := $$(CFG_GCCISH_CFLAGS_$(1)) -m32
else
COMPRT_CFLAGS_$(1) := $$(CFG_GCCISH_CFLAGS_$(1)) -m64
endif
endif
$$(COMPRT_LIB_$(1)): $$(COMPRT_DEPS) $$(MKFILE_DEPS)
@$$(call E, make: compiler-rt)

37
mk/target.mk
View File

@ -220,3 +220,40 @@ $(foreach target,$(CFG_TARGET), \
$(foreach crate,$(CRATES), \
$(foreach tool,$(NATIVE_TOOL_DEPS_$(crate)_T_$(target)), \
$(eval $(call MOVE_TOOLS_TO_SNAPSHOT_HOST_DIR,0,$(target),$(BOOTSTRAP_FROM_$(target)),$(crate),$(tool))))))
# For MSVC targets we need to set up some environment variables for the linker
# to work correctly when building Rust crates. These two variables are:
#
# - LIB tells the linker the default search path for finding system libraries,
# for example kernel32.dll
# - PATH needs to be modified to ensure that MSVC's link.exe is first in the
# path instead of MinGW's /usr/bin/link.exe (entirely unrelated)
#
# The values for these variables are detected by the configure script.
define SETUP_LIB_MSVC_ENV_VARS
ifeq ($$(findstring msvc,$(2)),msvc)
$$(TLIB$(1)_T_$(2)_H_$(3))/stamp.$(4): \
export LIB := $$(CFG_MSVC_LIB_PATH_$$(HOST_$(2)))
$$(TLIB$(1)_T_$(2)_H_$(3))/stamp.$(4): \
export PATH := $$(CFG_MSVC_BINDIR_$$(HOST_$(2))):$$(PATH)
endif
endef
define SETUP_TOOL_MSVC_ENV_VARS
ifeq ($$(findstring msvc,$(2)),msvc)
$$(TBIN$(1)_T_$(2)_H_$(3))/$(4)$$(X_$(2)): \
export LIB := $$(CFG_MSVC_LIB_PATH_$$(HOST_$(2)))
$$(TBIN$(1)_T_$(2)_H_$(3))/$(4)$$(X_$(2)): \
export PATH := $$(CFG_MSVC_BINDIR_$$(HOST_$(2))):$$(PATH)
endif
endef
$(foreach host,$(CFG_HOST), \
$(foreach target,$(CFG_TARGET), \
$(foreach stage,$(STAGES), \
$(foreach crate,$(CRATES), \
$(eval $(call SETUP_LIB_MSVC_ENV_VARS,$(stage),$(target),$(host),$(crate)))))))
$(foreach host,$(CFG_HOST), \
$(foreach target,$(CFG_TARGET), \
$(foreach stage,$(STAGES), \
$(foreach tool,$(TOOLS), \
$(eval $(call SETUP_TOOL_MSVC_ENV_VARS,$(stage),$(target),$(host),$(tool)))))))