rust/mk/host.mk
Felix S. Klock II 25f51eeda0 Fix #3225: Incorporate feedback from Graydon.
Namely, switched in many places to using GNU make provided functions
for directory listing and text processing, rather than spawning a
shell process to do that work.

In the process of the revision, learned about Target-specific
variables, which were very applicable to INSTALL_LIB (which, on a
per-recipe basis, was always receiving the same actual arguments for
its first two formal parameters in every invocation).

  http://www.gnu.org/software/make/manual/html_node/Target_002dspecific.html

(We might be able to make use of those in future refactorings.)

----

Also adds a cleanup pass to get-snapshot.py as well, since the same
problem arises when we unpack libraries from the snapshot archive into
a build directory with a prior snapshot's artifacts.  (I put this step
into the python script rather than the makefile because I wanted to
delay the cleanup pass until after we have at least successfully
downloaded the tarball.  That way, if the download fails, you should
not destroy the previous unarchived snapshot libraries and build
products.)

----

Also reverted whitespace changes to minimize diff.
I plan to put them back in in a dedicated commit elsewhere.
2013-07-09 13:08:50 +02:00

152 lines
5.6 KiB
Makefile

# Copyright 2012 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.
# CP_HOST_STAGE_N template: arg 1 is the N we're promoting *from*, arg
# 2 is N+1. Must be invoked to promote target artifacts to host
# artifacts for stage 1-3 (stage0 host artifacts come from the
# snapshot). Arg 3 is the triple we're copying FROM and arg 4 is the
# triple we're copying TO.
#
# The easiest way to read this template is to assume we're promoting
# stage1 to stage2 and mentally gloss $(1) as 1, $(2) as 2.
define CP_HOST_STAGE_N
# Host libraries and executables (stage$(2)/bin/rustc and its runtime needs)
# Note: $(3) and $(4) are both the same!
$$(HBIN$(2)_H_$(4))/rustc$$(X_$(4)): \
$$(TBIN$(1)_T_$(4)_H_$(3))/rustc$$(X_$(4)) \
$$(HLIB$(2)_H_$(4))/$(CFG_RUNTIME_$(4)) \
$$(HLIB$(2)_H_$(4))/$(CFG_RUSTLLVM_$(4)) \
$$(HLIB$(2)_H_$(4))/$(CFG_LIBRUSTC_$(4)) \
$$(HSTDLIB_DEFAULT$(2)_H_$(4)) \
$$(HEXTRALIB_DEFAULT$(2)_H_$(4)) \
| $$(HBIN$(2)_H_$(4))/
@$$(call E, cp: $$@)
$$(Q)cp $$< $$@
$$(HLIB$(2)_H_$(4))/$(CFG_LIBRUSTC_$(4)): \
$$(TLIB$(1)_T_$(4)_H_$(3))/$(CFG_LIBRUSTC_$(4)) \
$$(HLIB$(2)_H_$(4))/$(CFG_LIBSYNTAX_$(4)) \
$$(HLIB$(2)_H_$(4))/$(CFG_RUNTIME_$(4)) \
$$(HLIB$(2)_H_$(4))/$(CFG_RUSTLLVM_$(4)) \
$$(HSTDLIB_DEFAULT$(2)_H_$(4)) \
$$(HEXTRALIB_DEFAULT$(2)_H_$(4)) \
| $$(HLIB$(2)_H_$(4))/
@$$(call E, cp: $$@)
$$(call REMOVE_ALL_OLD_GLOB_MATCHES_EXCEPT,$$(dir $$@),$(LIBRUSTC_GLOB_$(4)),$$(notdir $$@))
$$(Q)cp $$< $$@
$$(Q)cp -R $$(TLIB$(1)_T_$(4)_H_$(3))/$(LIBRUSTC_GLOB_$(4)) \
$(wildcard $$(TLIB$(1)_T_$(4)_H_$(3))/$(LIBRUSTC_DSYM_GLOB_$(4))) \
$$(HLIB$(2)_H_$(4))
$$(call LIST_ALL_OLD_GLOB_MATCHES_EXCEPT,$$(dir $$@),$(LIBRUSTC_GLOB_$(4)),$$(notdir $$@))
$$(HLIB$(2)_H_$(4))/$(CFG_LIBSYNTAX_$(4)): \
$$(TLIB$(1)_T_$(4)_H_$(3))/$(CFG_LIBSYNTAX_$(4)) \
$$(HLIB$(2)_H_$(4))/$(CFG_RUNTIME_$(4)) \
$$(HLIB$(2)_H_$(4))/$(CFG_RUSTLLVM_$(4)) \
$$(HSTDLIB_DEFAULT$(2)_H_$(4)) \
$$(HEXTRALIB_DEFAULT$(2)_H_$(4)) \
| $$(HLIB$(2)_H_$(4))/
@$$(call E, cp: $$@)
$$(call REMOVE_ALL_OLD_GLOB_MATCHES_EXCEPT,$$(dir $$@),$(LIBSYNTAX_GLOB_$(4)),$$(notdir $$@))
$$(Q)cp $$< $$@
$$(Q)cp -R $$(TLIB$(1)_T_$(4)_H_$(3))/$(LIBSYNTAX_GLOB_$(4)) \
$$(wildcard $$(TLIB$(1)_T_$(4)_H_$(3))/$(LIBSYNTAX_DSYM_GLOB_$(4))) \
$$(HLIB$(2)_H_$(4))
$$(call LIST_ALL_OLD_GLOB_MATCHES_EXCEPT,$$(dir $$@),$(LIBSYNTAX_GLOB_$(4)),$$(notdir $$@))
$$(HLIB$(2)_H_$(4))/$(CFG_RUNTIME_$(4)): \
$$(TLIB$(1)_T_$(4)_H_$(3))/$(CFG_RUNTIME_$(4)) \
| $$(HLIB$(2)_H_$(4))/
@$$(call E, cp: $$@)
$$(Q)cp $$< $$@
$$(HLIB$(2)_H_$(4))/$(CFG_STDLIB_$(4)): \
$$(TLIB$(1)_T_$(4)_H_$(3))/$(CFG_STDLIB_$(4)) \
$$(HLIB$(2)_H_$(4))/$(CFG_RUNTIME_$(4)) \
| $$(HLIB$(2)_H_$(4))/
@$$(call E, cp: $$@)
$$(call REMOVE_ALL_OLD_GLOB_MATCHES_EXCEPT,$$(dir $$@),$(STDLIB_GLOB_$(4)),$$(notdir $$@))
$$(Q)cp $$< $$@
# Subtle: We do not let the shell expand $(STDLIB_DSYM_GLOB) directly rather
# we use Make's $$(wildcard) facility. The reason is that, on mac, when using
# USE_SNAPSHOT_STDLIB, we copy the std.dylib file out of the snapshot.
# In that case, there is no .dSYM file. Annoyingly, bash then refuses to expand
# glob, and cp reports an error because libstd-*.dylib.dsym does not exist.
# Make instead expands the glob to nothing, which gives us the correct behavior.
# (Copy .dsym file if it exists, but do nothing otherwise)
$$(Q)cp -R $$(TLIB$(1)_T_$(4)_H_$(3))/$(STDLIB_GLOB_$(4)) \
$$(wildcard $$(TLIB$(1)_T_$(4)_H_$(3))/$(STDLIB_DSYM_GLOB_$(4))) \
$$(HLIB$(2)_H_$(4))
$$(call LIST_ALL_OLD_GLOB_MATCHES_EXCEPT,$$(dir $$@),$(STDLIB_GLOB_$(4)),$$(notdir $$@))
$$(HLIB$(2)_H_$(4))/$(CFG_EXTRALIB_$(4)): \
$$(TLIB$(1)_T_$(4)_H_$(3))/$(CFG_EXTRALIB_$(4)) \
$$(HLIB$(2)_H_$(4))/$(CFG_STDLIB_$(4)) \
$$(HLIB$(2)_H_$(4))/$(CFG_RUNTIME_$(4)) \
| $$(HLIB$(2)_H_$(4))/
@$$(call E, cp: $$@)
$$(call REMOVE_ALL_OLD_GLOB_MATCHES_EXCEPT,$$(dir $$@),$(EXTRALIB_GLOB_$(4)),$$(notdir $$@))
$$(Q)cp $$< $$@
$$(Q)cp -R $$(TLIB$(1)_T_$(4)_H_$(3))/$(EXTRALIB_GLOB_$(4)) \
$$(wildcard $$(TLIB$(1)_T_$(4)_H_$(3))/$(EXTRALIB_DSYM_GLOB_$(4))) \
$$(HLIB$(2)_H_$(4))
$$(call LIST_ALL_OLD_GLOB_MATCHES_EXCEPT,$$(dir $$@),$(EXTRALIB_GLOB_$(4)),$$(notdir $$@))
$$(HLIB$(2)_H_$(4))/libstd.rlib: \
$$(TLIB$(1)_T_$(4)_H_$(3))/libstd.rlib \
$$(HLIB$(2)_H_$(4))/$$(CFG_RUNTIME_$(4)) \
| $$(HLIB$(2)_H_$(4))/
@$$(call E, cp: $$@)
$$(Q)cp $$< $$@
$$(HLIB$(2)_H_$(4))/libextra.rlib: \
$$(TLIB$(1)_T_$(4)_H_$(3))/libextra.rlib \
$$(HLIB$(2)_H_$(4))/libstd.rlib \
$$(HLIB$(2)_H_$(4))/$$(CFG_RUNTIME_$(4)) \
| $$(HLIB$(2)_H_$(4))/
@$$(call E, cp: $$@)
$$(Q)cp $$< $$@
$$(HLIB$(2)_H_$(4))/librustc.rlib: \
$$(TLIB$(1)_T_$(4)_H_$(3))/librustc.rlib \
$$(HLIB$(2)_H_$(4))/libstd.rlib \
$$(HLIB$(2)_H_$(4))/libextra.rlib \
$$(HLIB$(2)_H_$(4))/$$(CFG_RUNTIME_$(4)) \
| $$(HLIB$(2)_H_$(4))/
@$$(call E, cp: $$@)
$$(Q)cp $$< $$@
$$(HLIB$(2)_H_$(4))/$(CFG_RUSTLLVM_$(4)): \
$$(TLIB$(1)_T_$(4)_H_$(3))/$(CFG_RUSTLLVM_$(4)) \
| $$(HLIB$(2)_H_$(4))/
@$$(call E, cp: $$@)
$$(Q)cp $$< $$@
$$(HBIN$(2)_H_$(4))/:
mkdir -p $$@
ifneq ($(CFG_LIBDIR),bin)
$$(HLIB$(2)_H_$(4))/:
mkdir -p $$@
endif
endef
$(foreach t,$(CFG_HOST_TRIPLES), \
$(eval $(call CP_HOST_STAGE_N,0,1,$(t),$(t))) \
$(eval $(call CP_HOST_STAGE_N,1,2,$(t),$(t))) \
$(eval $(call CP_HOST_STAGE_N,2,3,$(t),$(t))))