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Improve the LLVM-using experience.

llvm-config may be installed somewhere that's not on the path or in ocaml's
default lib directory, so allow users to override $CFG_LLVM_CONFIG with an
environment variable and look up lib and binary paths through calls to
llvm-config.
This commit is contained in:
Jeffrey Yasskin 2010-07-18 04:26:23 +08:00 committed by Graydon Hoare
parent 0633c7ae6e
commit d974aade93

View file

@ -23,7 +23,7 @@ CFG_GCC_CFLAGS :=
CFG_GCC_LINK_FLAGS :=
CFG_VALGRIND :=
CFG_LLVM_CONFIG := llvm-config
CFG_LLVM_CONFIG ?= llvm-config
CFG_BOOT_FLAGS := $(FLAGS)
ifeq ($(CFG_OSTYPE), Linux)
@ -162,7 +162,7 @@ ifneq ($(CFG_LLVM_CONFIG),)
CFG_LLVM_VERSION := $(shell $(CFG_LLVM_CONFIG) --version)
ifeq ($(CFG_LLVM_VERSION),2.8svn)
$(info cfg: using LLVM version 2.8svn)
WHERE := $(shell ocamlc -where)
WHERE := $(shell $(CFG_LLVM_CONFIG) --libdir)/ocaml
ifneq ($(shell test -e $(WHERE)/llvm.cma && echo ok),ok)
CFG_LLVM_CONFIG := $(info cfg: LLVM ocaml bindings not found)
endif
@ -181,6 +181,7 @@ ifdef CFG_LLVM_CONFIG
LLVM_INCS := -I boot/llvm -I $(WHERE)
LLVM_MLS := $(addprefix boot/llvm/, llabi.ml llasm.ml llfinal.ml \
lltrans.ml llemit.ml)
LLC := "$(shell $(CFG_LLVM_CONFIG) --bindir)/llc"
CFG_LLC_CFLAGS := -march=x86
$(info cfg: found llvm-config at $(CFG_LLVM_CONFIG))
else
@ -648,7 +649,7 @@ test/bench/shootout/%.x86$(CFG_EXE_SUFFIX): test/bench/shootout/%.rs $(REQ)
%.s: %.bc
@$(call CFG_ECHO, compile [llvm]: $<)
$(CFG_QUIET)llc $(CFG_LLC_CFLAGS) -o $@ $<
$(CFG_QUIET)$(LLC) $(CFG_LLC_CFLAGS) -o $@ $<
%.llvm$(CFG_EXE_SUFFIX): %.s $(CFG_RUNTIME)
@$(call CFG_ECHO, compile [llvm]: $<)