diff options
Diffstat (limited to 'make')
| -rw-r--r-- | make/platform/clang_darwin_embedded.mk | 35 |
1 files changed, 27 insertions, 8 deletions
diff --git a/make/platform/clang_darwin_embedded.mk b/make/platform/clang_darwin_embedded.mk index 3cea2e45c..4398c12ee 100644 --- a/make/platform/clang_darwin_embedded.mk +++ b/make/platform/clang_darwin_embedded.mk @@ -6,6 +6,25 @@ Description := Static runtime libraries for embedded clang/Darwin +# A function that ensures we don't try to build for architectures that we +# don't have working toolchains for. +CheckArches = \ + $(shell \ + result=""; \ + for arch in $(1); do \ + if $(CC) -arch $$arch -c \ + -integrated-as \ + $(ProjSrcRoot)/make/platform/clang_darwin_test_input.c \ + -isysroot $(ProjSrcRoot)/SDKs/darwin \ + -o /dev/null > /dev/null 2> /dev/null; then \ + result="$$result$$arch "; \ + else \ + printf 1>&2 \ + "warning: clang_darwin.mk: dropping arch '$$arch' from lib '$(2)'\n"; \ + fi; \ + done; \ + echo $$result) + XCRun = \ $(shell \ result=`xcrun -find $(1) 2> /dev/null`; \ @@ -27,20 +46,20 @@ UniversalArchs := # Soft-float version of the runtime. No floating-point instructions will be used # and the ABI (out of necessity) passes floating values in normal registers: # non-VFP variant of the AAPCS. -Configs += soft_static -UniversalArchs.soft_static := armv6m armv7m armv7em armv7 +UniversalArchs.soft_static := $(call CheckArches,armv6m armv7m armv7em armv7,soft_static) +Configs += $(if $(UniversalArchs.soft_static),soft_static) # Hard-float version of the runtime. On ARM VFP instructions and registers are # allowed, and floating point values get passed in them. VFP variant of the # AAPCS. -Configs += hard_static -UniversalArchs.hard_static := armv7em armv7 i386 x86_64 +UniversalArchs.hard_static := $(call CheckArches,armv7em armv7 i386 x86_64,hard_static) +Configs += $(if $(UniversalArchs.hard_static),hard_static) -Configs += soft_pic -UniversalArchs.soft_pic := armv6m armv7m armv7em armv7 +UniversalArchs.soft_pic := $(call CheckArches,armv6m armv7m armv7em armv7,soft_pic) +Configs += $(if $(UniversalArchs.soft_pic),soft_pic) -Configs += hard_pic -UniversalArchs.hard_pic := armv7em armv7 i386 x86_64 +UniversalArchs.hard_pic := $(call CheckArches,armv7em armv7 i386 x86_64,hard_pic) +Configs += $(if $(UniversalArchs.hard_pic),hard_pic) CFLAGS := -Wall -Werror -Oz -fomit-frame-pointer -ffreestanding |