# that's per-target so you're allowed to conditionally add files based on the
# target.
################################################################################
-NATIVE_LIBS := rust_builtin hoedown morestack miniz \
- rustrt_native rust_test_helpers
+NATIVE_LIBS := hoedown miniz rust_test_helpers
+
+# A macro to add a generic implementation of intrinsics iff a arch optimized implementation is not
+# already in the list.
+# $(1) is the target
+# $(2) is the intrinsic
+define ADD_INTRINSIC
+ ifeq ($$(findstring X,$$(foreach intrinsic,$$(COMPRT_OBJS_$(1)),$$(if $$(findstring $(2),$$(intrinsic)),X,))),)
+ COMPRT_OBJS_$(1) += $(2)
+ endif
+endef
# $(1) is the target triple
define NATIVE_LIBRARIES
hoedown/src/stack.c \
hoedown/src/version.c
NATIVE_DEPS_miniz_$(1) = miniz.c
-NATIVE_DEPS_rust_builtin_$(1) := rust_builtin.c \
- rust_android_dummy.c
-NATIVE_DEPS_rustrt_native_$(1) := \
- rust_try.ll \
- arch/$$(HOST_$(1))/record_sp.S
NATIVE_DEPS_rust_test_helpers_$(1) := rust_test_helpers.c
-NATIVE_DEPS_morestack_$(1) := arch/$$(HOST_$(1))/morestack.S
-
################################################################################
# You shouldn't find it that necessary to edit anything below this line.
RT_OUTPUT_DIR_$(1) := $(1)/rt
-$$(RT_OUTPUT_DIR_$(1))/%.o: $(S)src/rt/%.ll $$(MKFILE_DEPS) \
- $$(LLVM_CONFIG_$$(CFG_BUILD))
- @mkdir -p $$(@D)
- @$$(call E, compile: $$@)
- $$(Q)$$(LLC_$$(CFG_BUILD)) $$(CFG_LLC_FLAGS_$(1)) \
- -filetype=obj -mtriple=$$(CFG_LLVM_TARGET_$(1)) \
- -relocation-model=pic -o $$@ $$<
-
$$(RT_OUTPUT_DIR_$(1))/%.o: $(S)src/rt/%.c $$(MKFILE_DEPS)
@mkdir -p $$(@D)
@$$(call E, compile: $$@)
$$(Q)$$(call CFG_COMPILE_C_$(1), $$@, \
- -I $$(S)src/rt/hoedown/src \
- -I $$(S)src/rt \
+ $$(call CFG_CC_INCLUDE_$(1),$$(S)src/rt/hoedown/src) \
+ $$(call CFG_CC_INCLUDE_$(1),$$(S)src/rt) \
$$(RUNTIME_CFLAGS_$(1))) $$<
$$(RT_OUTPUT_DIR_$(1))/%.o: $(S)src/rt/%.S $$(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_$$(HOST_$(1)))
+endif
endef
$(foreach target,$(CFG_TARGET),$(eval $(call NATIVE_LIBRARIES,$(target))))
OBJS_$(2)_$(1) := $$(NATIVE_DEPS_$(2)_$(1):%=$$(RT_OUTPUT_DIR_$(1))/%)
OBJS_$(2)_$(1) := $$(OBJS_$(2)_$(1):.c=.o)
OBJS_$(2)_$(1) := $$(OBJS_$(2)_$(1):.cpp=.o)
-OBJS_$(2)_$(1) := $$(OBJS_$(2)_$(1):.ll=.o)
OBJS_$(2)_$(1) := $$(OBJS_$(2)_$(1):.S=.o)
NATIVE_$(2)_$(1) := $$(call CFG_STATIC_LIB_NAME_$(1),$(2))
$$(RT_OUTPUT_DIR_$(1))/$$(NATIVE_$(2)_$(1)): $$(OBJS_$(2)_$(1))
@$$(call E, link: $$@)
- $$(Q)$$(AR_$(1)) rcs $$@ $$^
-
-ifeq ($$(findstring windows,$(1)),windows)
-$$(RT_OUTPUT_DIR_$(1))/lib$(2).a: $$(RT_OUTPUT_DIR_$(1))/$$(NATIVE_$(2)_$(1))
- $$(Q)cp $$^ $$@
-endif
+ $$(Q)$$(call CFG_CREATE_ARCHIVE_$(1),$$@) $$^
endef
# $(1) is the target triple
-ifeq ($$(CFG_WINDOWSY_$(1)), 1)
- # This isn't necessarily a desired option, but it's harmless and works around
- # what appears to be a mingw-w64 bug.
+ifeq ($$(CFG_WINDOWSY_$(1)),1)
+ # A bit of history here, this used to be --enable-lazy-lock added in #14006
+ # which was filed with jemalloc in jemalloc/jemalloc#83 which was also
+ # reported to MinGW: http://sourceforge.net/p/mingw-w64/bugs/395/
+ #
+ # When updating jemalloc to 4.0, however, it was found that binaries would
+ # exit with the status code STATUS_RESOURCE_NOT_OWNED indicating that a thread
+ # was unlocking a mutex it never locked. Disabling this "lazy lock" option
+ # seems to fix the issue, but it was enabled by default for MinGW targets in
+ # 13473c7 for jemalloc.
+ #
+ # As a result of all that, force disabling lazy lock on Windows, and after
+ # reading some code it at least *appears* that the initialization of mutexes
+ # is otherwise ok in jemalloc, so shouldn't cause problems hopefully...
#
- # https://sourceforge.net/p/mingw-w64/bugs/395/
- JEMALLOC_ARGS_$(1) := --enable-lazy-lock
+ # tl;dr: make windows behave like other platforms by disabling lazy locking,
+ # but requires passing an option due to a historical default with
+ # jemalloc.
+ JEMALLOC_ARGS_$(1) := --disable-lazy-lock
else ifeq ($(OSTYPE_$(1)), apple-ios)
JEMALLOC_ARGS_$(1) := --disable-tls
else ifeq ($(findstring android, $(OSTYPE_$(1))), android)
- JEMALLOC_ARGS_$(1) := --disable-tls
+ # We force android to have prefixed symbols because apparently replacement of
+ # the libc allocator doesn't quite work. When this was tested (unprefixed
+ # symbols), it was found that the `realpath` function in libc would allocate
+ # with libc malloc (not jemalloc malloc), and then the standard library would
+ # free with jemalloc free, causing a segfault.
+ #
+ # If the test suite passes, however, without symbol prefixes then we should be
+ # good to go!
+ JEMALLOC_ARGS_$(1) := --disable-tls --with-jemalloc-prefix=je_
+else ifeq ($(findstring dragonfly, $(OSTYPE_$(1))), dragonfly)
+ JEMALLOC_ARGS_$(1) := --with-jemalloc-prefix=je_
endif
ifdef CFG_ENABLE_DEBUG_JEMALLOC
$$(JEMALLOC_LOCAL_$(1)): $$(JEMALLOC_DEPS) $$(MKFILE_DEPS)
@$$(call E, make: jemalloc)
cd "$$(JEMALLOC_BUILD_DIR_$(1))"; "$(S)src/jemalloc/configure" \
- $$(JEMALLOC_ARGS_$(1)) --with-jemalloc-prefix=je_ $(CFG_JEMALLOC_FLAGS) \
+ $$(JEMALLOC_ARGS_$(1)) $(CFG_JEMALLOC_FLAGS) \
--build=$$(CFG_GNU_TRIPLE_$(CFG_BUILD)) --host=$$(CFG_GNU_TRIPLE_$(1)) \
CC="$$(CC_$(1)) $$(CFG_JEMALLOC_CFLAGS_$(1))" \
AR="$$(AR_$(1))" \
EXTRA_CFLAGS="-g1 -ffunction-sections -fdata-sections"
$$(Q)$$(MAKE) -C "$$(JEMALLOC_BUILD_DIR_$(1))" build_lib_static
-ifeq ($$(CFG_DISABLE_JEMALLOC),)
-RUSTFLAGS_alloc := --cfg jemalloc
ifeq ($(1),$$(CFG_BUILD))
ifneq ($$(CFG_JEMALLOC_ROOT),)
$$(JEMALLOC_LIB_$(1)): $$(CFG_JEMALLOC_ROOT)/libjemalloc_pic.a
$$(JEMALLOC_LIB_$(1)): $$(JEMALLOC_LOCAL_$(1))
$$(Q)cp $$< $$@
endif
-else
-$$(JEMALLOC_LIB_$(1)): $$(MKFILE_DEPS)
- $$(Q)touch $$@
-endif
################################################################################
# compiler-rt
################################################################################
-ifdef CFG_ENABLE_FAST_MAKE
-COMPRT_DEPS := $(S)/.gitmodules
-else
-COMPRT_DEPS := $(wildcard \
- $(S)src/compiler-rt/* \
- $(S)src/compiler-rt/*/* \
- $(S)src/compiler-rt/*/*/* \
- $(S)src/compiler-rt/*/*/*/*)
-endif
+# Everything below is a manual compilation of compiler-rt, disregarding its
+# build system. See comments in `src/bootstrap/native.rs` for more information.
-COMPRT_NAME_$(1) := libcompiler-rt.a
+COMPRT_NAME_$(1) := $$(call CFG_STATIC_LIB_NAME_$(1),compiler-rt)
COMPRT_LIB_$(1) := $$(RT_OUTPUT_DIR_$(1))/$$(COMPRT_NAME_$(1))
COMPRT_BUILD_DIR_$(1) := $$(RT_OUTPUT_DIR_$(1))/compiler-rt
-$$(COMPRT_LIB_$(1)): $$(COMPRT_DEPS) $$(MKFILE_DEPS)
- @$$(call E, make: compiler-rt)
- $$(Q)$$(MAKE) -C "$(S)src/compiler-rt" \
- ProjSrcRoot="$(S)src/compiler-rt" \
- ProjObjRoot="$$(abspath $$(COMPRT_BUILD_DIR_$(1)))" \
- CC="$$(CC_$(1))" \
- AR="$$(AR_$(1))" \
- RANLIB="$$(AR_$(1)) s" \
- CFLAGS="$$(CFG_GCCISH_CFLAGS_$(1))" \
- TargetTriple=$(1) \
- triple-builtins
- $$(Q)cp $$(COMPRT_BUILD_DIR_$(1))/triple/builtins/libcompiler_rt.a $$(COMPRT_LIB_$(1))
+# We must avoid compiling both a generic implementation (e.g. `floatdidf.c) and an arch optimized
+# implementation (e.g. `x86_64/floatdidf.S) of the same symbol (e.g. `floatdidf) because that causes
+# linker errors. To avoid that, we first add all the arch optimized implementations and then add the
+# generic implementations if and only if its arch optimized version is not already in the list. This
+# last part is handled by the ADD_INTRINSIC macro.
+
+COMPRT_OBJS_$(1) :=
+
+ifeq ($$(findstring msvc,$(1)),)
+ifeq ($$(findstring x86_64,$(1)),x86_64)
+COMPRT_OBJS_$(1) += \
+ x86_64/chkstk.o \
+ x86_64/chkstk2.o \
+ x86_64/floatdidf.o \
+ x86_64/floatdisf.o \
+ x86_64/floatdixf.o \
+ x86_64/floatundidf.o \
+ x86_64/floatundisf.o \
+ x86_64/floatundixf.o
+endif
+
+ifeq ($$(findstring i686,$$(patsubts i%86,i686,$(1))),i686)
+COMPRT_OBJS_$(1) += \
+ i386/ashldi3.o \
+ i386/ashrdi3.o \
+ i386/chkstk.o \
+ i386/chkstk2.o \
+ i386/divdi3.o \
+ i386/floatdidf.o \
+ i386/floatdisf.o \
+ i386/floatdixf.o \
+ i386/floatundidf.o \
+ i386/floatundisf.o \
+ i386/floatundixf.o \
+ i386/lshrdi3.o \
+ i386/moddi3.o \
+ i386/muldi3.o \
+ i386/udivdi3.o \
+ i386/umoddi3.o
+endif
+
+else
+
+ifeq ($$(findstring x86_64,$(1)),x86_64)
+COMPRT_OBJS_$(1) += \
+ x86_64/floatdidf.o \
+ x86_64/floatdisf.o \
+ x86_64/floatdixf.o
+endif
+
+endif
+
+# Generic ARM sources, nothing compiles on iOS though
+ifeq ($$(findstring arm,$(1)),arm)
+ifeq ($$(findstring ios,$(1)),)
+COMPRT_OBJS_$(1) += \
+ arm/aeabi_cdcmp.o \
+ arm/aeabi_cdcmpeq_check_nan.o \
+ arm/aeabi_cfcmp.o \
+ arm/aeabi_cfcmpeq_check_nan.o \
+ arm/aeabi_dcmp.o \
+ arm/aeabi_div0.o \
+ arm/aeabi_drsub.o \
+ arm/aeabi_fcmp.o \
+ arm/aeabi_frsub.o \
+ arm/aeabi_idivmod.o \
+ arm/aeabi_ldivmod.o \
+ arm/aeabi_memcmp.o \
+ arm/aeabi_memcpy.o \
+ arm/aeabi_memmove.o \
+ arm/aeabi_memset.o \
+ arm/aeabi_uidivmod.o \
+ arm/aeabi_uldivmod.o \
+ arm/bswapdi2.o \
+ arm/bswapsi2.o \
+ arm/clzdi2.o \
+ arm/clzsi2.o \
+ arm/comparesf2.o \
+ arm/divmodsi4.o \
+ arm/divsi3.o \
+ arm/modsi3.o \
+ arm/switch16.o \
+ arm/switch32.o \
+ arm/switch8.o \
+ arm/switchu8.o \
+ arm/sync_synchronize.o \
+ arm/udivmodsi4.o \
+ arm/udivsi3.o \
+ arm/umodsi3.o
+endif
+endif
+
+# Thumb sources
+ifeq ($$(findstring armv7,$(1)),armv7)
+COMPRT_OBJS_$(1) += \
+ arm/sync_fetch_and_add_4.o \
+ arm/sync_fetch_and_add_8.o \
+ arm/sync_fetch_and_and_4.o \
+ arm/sync_fetch_and_and_8.o \
+ arm/sync_fetch_and_max_4.o \
+ arm/sync_fetch_and_max_8.o \
+ arm/sync_fetch_and_min_4.o \
+ arm/sync_fetch_and_min_8.o \
+ arm/sync_fetch_and_nand_4.o \
+ arm/sync_fetch_and_nand_8.o \
+ arm/sync_fetch_and_or_4.o \
+ arm/sync_fetch_and_or_8.o \
+ arm/sync_fetch_and_sub_4.o \
+ arm/sync_fetch_and_sub_8.o \
+ arm/sync_fetch_and_umax_4.o \
+ arm/sync_fetch_and_umax_8.o \
+ arm/sync_fetch_and_umin_4.o \
+ arm/sync_fetch_and_umin_8.o \
+ arm/sync_fetch_and_xor_4.o \
+ arm/sync_fetch_and_xor_8.o
+endif
+
+# VFP sources
+ifeq ($$(findstring eabihf,$(1)),eabihf)
+COMPRT_OBJS_$(1) += \
+ arm/adddf3vfp.o \
+ arm/addsf3vfp.o \
+ arm/divdf3vfp.o \
+ arm/divsf3vfp.o \
+ arm/eqdf2vfp.o \
+ arm/eqsf2vfp.o \
+ arm/extendsfdf2vfp.o \
+ arm/fixdfsivfp.o \
+ arm/fixsfsivfp.o \
+ arm/fixunsdfsivfp.o \
+ arm/fixunssfsivfp.o \
+ arm/floatsidfvfp.o \
+ arm/floatsisfvfp.o \
+ arm/floatunssidfvfp.o \
+ arm/floatunssisfvfp.o \
+ arm/gedf2vfp.o \
+ arm/gesf2vfp.o \
+ arm/gtdf2vfp.o \
+ arm/gtsf2vfp.o \
+ arm/ledf2vfp.o \
+ arm/lesf2vfp.o \
+ arm/ltdf2vfp.o \
+ arm/ltsf2vfp.o \
+ arm/muldf3vfp.o \
+ arm/mulsf3vfp.o \
+ arm/negdf2vfp.o \
+ arm/negsf2vfp.o \
+ arm/nedf2vfp.o \
+ arm/nesf2vfp.o \
+ arm/restore_vfp_d8_d15_regs.o \
+ arm/save_vfp_d8_d15_regs.o \
+ arm/subdf3vfp.o \
+ arm/subsf3vfp.o \
+ arm/truncdfsf2vfp.o \
+ arm/unorddf2vfp.o \
+ arm/unordsf2vfp.o
+endif
+
+$(foreach intrinsic,absvdi2.o \
+ absvsi2.o \
+ adddf3.o \
+ addsf3.o \
+ addvdi3.o \
+ addvsi3.o \
+ apple_versioning.o \
+ ashldi3.o \
+ ashrdi3.o \
+ clear_cache.o \
+ clzdi2.o \
+ clzsi2.o \
+ cmpdi2.o \
+ comparedf2.o \
+ comparesf2.o \
+ ctzdi2.o \
+ ctzsi2.o \
+ divdc3.o \
+ divdf3.o \
+ divdi3.o \
+ divmoddi4.o \
+ divmodsi4.o \
+ divsc3.o \
+ divsf3.o \
+ divsi3.o \
+ divxc3.o \
+ extendsfdf2.o \
+ extendhfsf2.o \
+ ffsdi2.o \
+ fixdfdi.o \
+ fixdfsi.o \
+ fixsfdi.o \
+ fixsfsi.o \
+ fixunsdfdi.o \
+ fixunsdfsi.o \
+ fixunssfdi.o \
+ fixunssfsi.o \
+ fixunsxfdi.o \
+ fixunsxfsi.o \
+ fixxfdi.o \
+ floatdidf.o \
+ floatdisf.o \
+ floatdixf.o \
+ floatsidf.o \
+ floatsisf.o \
+ floatundidf.o \
+ floatundisf.o \
+ floatundixf.o \
+ floatunsidf.o \
+ floatunsisf.o \
+ int_util.o \
+ lshrdi3.o \
+ moddi3.o \
+ modsi3.o \
+ muldc3.o \
+ muldf3.o \
+ muldi3.o \
+ mulodi4.o \
+ mulosi4.o \
+ muloti4.o \
+ mulsc3.o \
+ mulsf3.o \
+ mulvdi3.o \
+ mulvsi3.o \
+ mulxc3.o \
+ negdf2.o \
+ negdi2.o \
+ negsf2.o \
+ negvdi2.o \
+ negvsi2.o \
+ paritydi2.o \
+ paritysi2.o \
+ popcountdi2.o \
+ popcountsi2.o \
+ powidf2.o \
+ powisf2.o \
+ powixf2.o \
+ subdf3.o \
+ subsf3.o \
+ subvdi3.o \
+ subvsi3.o \
+ truncdfhf2.o \
+ truncdfsf2.o \
+ truncsfhf2.o \
+ ucmpdi2.o \
+ udivdi3.o \
+ udivmoddi4.o \
+ udivmodsi4.o \
+ udivsi3.o \
+ umoddi3.o \
+ umodsi3.o,
+ $(call ADD_INTRINSIC,$(1),$(intrinsic)))
+
+ifeq ($$(findstring ios,$(1)),)
+$(foreach intrinsic,absvti2.o \
+ addtf3.o \
+ addvti3.o \
+ ashlti3.o \
+ ashrti3.o \
+ clzti2.o \
+ cmpti2.o \
+ ctzti2.o \
+ divtf3.o \
+ divti3.o \
+ ffsti2.o \
+ fixdfti.o \
+ fixsfti.o \
+ fixunsdfti.o \
+ fixunssfti.o \
+ fixunsxfti.o \
+ fixxfti.o \
+ floattidf.o \
+ floattisf.o \
+ floattixf.o \
+ floatuntidf.o \
+ floatuntisf.o \
+ floatuntixf.o \
+ lshrti3.o \
+ modti3.o \
+ multf3.o \
+ multi3.o \
+ mulvti3.o \
+ negti2.o \
+ negvti2.o \
+ parityti2.o \
+ popcountti2.o \
+ powitf2.o \
+ subtf3.o \
+ subvti3.o \
+ trampoline_setup.o \
+ ucmpti2.o \
+ udivmodti4.o \
+ udivti3.o \
+ umodti3.o,
+ $(call ADD_INTRINSIC,$(1),$(intrinsic)))
+endif
+
+ifeq ($$(findstring apple,$(1)),apple)
+$(foreach intrinsic,atomic_flag_clear.o \
+ atomic_flag_clear_explicit.o \
+ atomic_flag_test_and_set.o \
+ atomic_flag_test_and_set_explicit.o \
+ atomic_signal_fence.o \
+ atomic_thread_fence.o,
+ $(call ADD_INTRINSIC,$(1),$(intrinsic)))
+endif
+
+ifeq ($$(findstring windows,$(1)),)
+$(call ADD_INTRINSIC,$(1),emutls.o)
+endif
+
+ifeq ($$(findstring msvc,$(1)),)
+
+ifeq ($$(findstring freebsd,$(1)),)
+$(call ADD_INTRINSIC,$(1),gcc_personality_v0.o)
+endif
+endif
+
+ifeq ($$(findstring aarch64,$(1)),aarch64)
+$(foreach intrinsic,comparetf2.o \
+ extenddftf2.o \
+ extendsftf2.o \
+ fixtfdi.o \
+ fixtfsi.o \
+ fixtfti.o \
+ fixunstfdi.o \
+ fixunstfsi.o \
+ fixunstfti.o \
+ floatditf.o \
+ floatsitf.o \
+ floatunditf.o \
+ floatunsitf.o \
+ multc3.o \
+ trunctfdf2.o \
+ trunctfsf2.o,
+ $(call ADD_INTRINSIC,$(1),$(intrinsic)))
+endif
+
+ifeq ($$(findstring msvc,$(1)),msvc)
+$$(COMPRT_BUILD_DIR_$(1))/%.o: CFLAGS += -Zl -D__func__=__FUNCTION__
+else
+$$(COMPRT_BUILD_DIR_$(1))/%.o: CFLAGS += -fno-builtin -fvisibility=hidden \
+ -fomit-frame-pointer -ffreestanding
+endif
+
+COMPRT_OBJS_$(1) := $$(COMPRT_OBJS_$(1):%=$$(COMPRT_BUILD_DIR_$(1))/%)
+
+$$(COMPRT_BUILD_DIR_$(1))/%.o: $(S)src/compiler-rt/lib/builtins/%.c
+ @mkdir -p $$(@D)
+ @$$(call E, compile: $$@)
+ $$(Q)$$(call CFG_COMPILE_C_$(1),$$@,$$<)
+
+$$(COMPRT_BUILD_DIR_$(1))/%.o: $(S)src/compiler-rt/lib/builtins/%.S \
+ $$(LLVM_CONFIG_$$(CFG_BUILD))
+ @mkdir -p $$(@D)
+ @$$(call E, compile: $$@)
+ $$(Q)$$(call CFG_ASSEMBLE_$(1),$$@,$$<)
+
+ifeq ($$(findstring msvc,$(1)),msvc)
+$$(COMPRT_BUILD_DIR_$(1))/%.o: \
+ export INCLUDE := $$(CFG_MSVC_INCLUDE_PATH_$$(HOST_$(1)))
+endif
+
+ifeq ($$(findstring emscripten,$(1)),emscripten)
+# FIXME: emscripten doesn't use compiler-rt and can't build it without
+# further hacks
+COMPRT_OBJS_$(1) :=
+endif
+
+$$(COMPRT_LIB_$(1)): $$(COMPRT_OBJS_$(1))
+ @$$(call E, link: $$@)
+ $$(Q)$$(call CFG_CREATE_ARCHIVE_$(1),$$@) $$^
################################################################################
# libbacktrace
BACKTRACE_LIB_$(1) := $$(RT_OUTPUT_DIR_$(1))/$$(BACKTRACE_NAME_$(1))
BACKTRACE_BUILD_DIR_$(1) := $$(RT_OUTPUT_DIR_$(1))/libbacktrace
-# We don't use this on platforms that aren't linux-based, so just make the file
-# available, the compilation of libstd won't actually build it.
+# We don't use this on platforms that aren't linux-based (with the exception of
+# msys2/mingw builds on windows, which use it to read the dwarf debug
+# information) so just make the file available, the compilation of libstd won't
+# actually build it.
ifeq ($$(findstring darwin,$$(OSTYPE_$(1))),darwin)
# See comment above
$$(BACKTRACE_LIB_$(1)):
touch $$@
-else
-ifeq ($$(findstring ios,$$(OSTYPE_$(1))),ios)
+else ifeq ($$(findstring ios,$$(OSTYPE_$(1))),ios)
# See comment above
$$(BACKTRACE_LIB_$(1)):
touch $$@
-else
-
-ifeq ($$(CFG_WINDOWSY_$(1)),1)
+else ifeq ($$(findstring msvc,$(1)),msvc)
# See comment above
+$$(BACKTRACE_LIB_$(1)):
+ touch $$@
+else ifeq ($$(findstring emscripten,$(1)),emscripten)
+# FIXME: libbacktrace doesn't understand the emscripten triple
$$(BACKTRACE_LIB_$(1)):
touch $$@
else
# ./configure script. This is done to force libbacktrace to *not* use the
# atomic/sync functionality because it pulls in unnecessary dependencies and we
# never use it anyway.
+#
+# We also use `env PWD=` to clear the PWD environment variable, and then
+# execute the command in a new shell. This is necessary to workaround a
+# buildbot/msys2 bug: the shell is launched with PWD set to a windows-style path,
+# which results in all further uses of `pwd` also printing a windows-style path,
+# which breaks libbacktrace's configure script. Clearing PWD within the same
+# shell is not sufficient.
+
$$(BACKTRACE_BUILD_DIR_$(1))/Makefile: $$(BACKTRACE_DEPS) $$(MKFILE_DEPS)
@$$(call E, configure: libbacktrace for $(1))
$$(Q)rm -rf $$(BACKTRACE_BUILD_DIR_$(1))
$$(Q)mkdir -p $$(BACKTRACE_BUILD_DIR_$(1))
- $$(Q)(cd $$(BACKTRACE_BUILD_DIR_$(1)) && \
+ $$(Q)(cd $$(BACKTRACE_BUILD_DIR_$(1)) && env \
+ PWD= \
CC="$$(CC_$(1))" \
AR="$$(AR_$(1))" \
RANLIB="$$(AR_$(1)) s" \
- CFLAGS="$$(CFG_GCCISH_CFLAGS_$(1):-Werror=) -fno-stack-protector" \
- $(S)src/libbacktrace/configure --target=$(1) --host=$(CFG_BUILD))
+ CFLAGS="$$(CFG_GCCISH_CFLAGS_$(1)) -Wno-error -fno-stack-protector" \
+ $(S)src/libbacktrace/configure --build=$(CFG_GNU_TRIPLE_$(CFG_BUILD)) --host=$(CFG_GNU_TRIPLE_$(1)))
$$(Q)echo '#undef HAVE_ATOMIC_FUNCTIONS' >> \
$$(BACKTRACE_BUILD_DIR_$(1))/config.h
$$(Q)echo '#undef HAVE_SYNC_FUNCTIONS' >> \
INCDIR=$(S)src/libbacktrace
$$(Q)cp $$(BACKTRACE_BUILD_DIR_$(1))/.libs/libbacktrace.a $$@
-endif # endif for windowsy
-endif # endif for ios
-endif # endif for darwin
+endif
################################################################################
# libc/libunwind for musl
ifeq ($$(findstring musl,$(1)),musl)
$$(RT_OUTPUT_DIR_$(1))/%: $$(CFG_MUSL_ROOT)/lib/%
cp $$^ $$@
+else
+# Ask gcc where it is
+$$(RT_OUTPUT_DIR_$(1))/%:
+ cp $$(shell $$(CC_$(1)) -print-file-name=$$(@F)) $$@
endif
endef
projects / rustc.git / blobdiff