mirror of
https://github.com/intel/llvm.git
synced 2026-01-26 21:53:12 +08:00
Add clang_darwin_embedded platform for embedded projects
This should build a separate set of embedded runtime libraries, supporting the
option product:
{PIC, static} x { Hard-float, soft-float }
The emphasis is on ARM platforms (Cortex-M4F, Cortex-M3, Cortex-M0) but X86
variants are also built where possible.
rdar://problem/10817205
llvm-svn: 194873
This commit is contained in:
Tim Northover
@@ -9,7 +9,7 @@
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ModuleName := builtins
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SubDirs :=
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OnlyArchs := armv5 armv6 armv7 armv7f armv7k armv7s
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OnlyArchs := armv5 armv6 armv7 armv7f armv7k armv7m armv7em armv7s
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AsmSources := $(foreach file,$(wildcard $(Dir)/*.S),$(notdir $(file)))
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Sources := $(foreach file,$(wildcard $(Dir)/*.c),$(notdir $(file)))
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@@ -31,7 +31,7 @@ void compilerrt_abort_impl(const char *file, int line, const char *function) {
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panic("%s:%d: abort in %s", file, line, function);
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}
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#elif __APPLE__ && !__STATIC__
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#elif __APPLE__
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/* from libSystem.dylib */
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extern void __assert_rtn(const char *func, const char *file,
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@@ -45,7 +45,6 @@ void compilerrt_abort_impl(const char *file, int line, const char *function) {
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__assert_rtn(function, file, line, "libcompiler_rt abort");
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}
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#else
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/* Get the system definition of abort() */
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270
compiler-rt/make/platform/clang_darwin_embedded.mk
Normal file
270
compiler-rt/make/platform/clang_darwin_embedded.mk
Normal file
@@ -0,0 +1,270 @@
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# These are the functions which clang needs when it is targetting a previous
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# version of the OS. The issue is that the backend may use functions which were
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# not present in the libgcc that shipped on the platform. In such cases, we link
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# with a version of the library which contains private_extern definitions of all
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# the extra functions which might be referenced.
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Description := Static runtime libraries for embedded clang/Darwin
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XCRun = \
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$(shell \
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result=`xcrun -find $(1) 2> /dev/null`; \
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if [ "$$?" != "0" ]; then result=$(1); fi; \
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echo $$result)
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###
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CC := $(call XCRun,clang)
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AR := $(call XCRun,ar)
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RANLIB := $(call XCRun,ranlib)
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STRIP := $(call XCRun,strip)
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LIPO := $(call XCRun,lipo)
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DSYMUTIL := $(call XCRun,dsymutil)
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Configs :=
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UniversalArchs :=
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# Soft-float version of the runtime. No floating-point instructions will be used
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# and the ABI (out of necessity) passes floating values in normal registers:
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# non-VFP variant of the AAPCS.
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Configs += soft_static
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UniversalArchs.soft_static := armv6m armv7m armv7em armv7
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# Hard-float version of the runtime. On ARM VFP instructions and registers are
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# allowed, and floating point values get passed in them. VFP variant of the
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# AAPCS.
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Configs += hard_static
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UniversalArchs.hard_static := armv7em armv7 i386 x86_64
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Configs += soft_pic
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UniversalArchs.soft_pic := armv6m armv7m armv7em armv7
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Configs += hard_pic
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UniversalArchs.hard_pic := armv7em armv7 i386 x86_64
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CFLAGS := -Wall -Werror -Oz -fomit-frame-pointer -ffreestanding
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PIC_CFLAGS := -fPIC
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STATIC_CFLAGS := -static
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CFLAGS_SOFT := -mfloat-abi=soft
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CFLAGS_HARD := -mfloat-abi=hard
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CFLAGS_ARMV7 := -target thumbv7-apple-darwin-eabi
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CFLAGS_I386 := -march=pentium
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CFLAGS.soft_static := $(CFLAGS) $(STATIC_CFLAGS) $(CFLAGS_SOFT)
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CFLAGS.hard_static := $(CFLAGS) $(STATIC_CFLAGS) $(CFLAGS_HARD)
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CFLAGS.soft_pic := $(CFLAGS) $(PIC_CFLAGS) $(CFLAGS_SOFT)
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CFLAGS.hard_pic := $(CFLAGS) $(PIC_CFLAGS) $(CFLAGS_HARD)
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CFLAGS.soft_static.armv7 := $(CFLAGS.soft_static) $(CFLAGS_ARMV7)
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CFLAGS.hard_static.armv7 := $(CFLAGS.hard_static) $(CFLAGS_ARMV7)
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CFLAGS.soft_pic.armv7 := $(CFLAGS.soft_pic) $(CFLAGS_ARMV7)
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CFLAGS.hard_pic.armv7 := $(CFLAGS.hard_pic) $(CFLAGS_ARMV7)
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# x86 platforms ignore -mfloat-abi options and complain about doing so. Despite
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# this they're hard-float.
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CFLAGS.hard_static.i386 := $(CFLAGS) $(STATIC_CFLAGS) $(CFLAGS_I386)
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CFLAGS.hard_pic.i386 := $(CFLAGS) $(PIC_CFLAGS) $(CFLAGS_I386)
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CFLAGS.hard_static.x86_64 := $(CFLAGS) $(STATIC_CFLAGS)
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CFLAGS.hard_pic.x86_64 := $(CFLAGS) $(PIC_CFLAGS)
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# Functions not wanted:
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# + eprintf is obsolete anyway
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# + *vfp: designed for Thumb1 CPUs with VFPv2
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COMMON_FUNCTIONS := \
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absvdi2 \
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absvsi2 \
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addvdi3 \
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addvsi3 \
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ashldi3 \
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ashrdi3 \
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bswapdi2 \
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bswapsi2 \
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clzdi2 \
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clzsi2 \
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cmpdi2 \
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ctzdi2 \
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ctzsi2 \
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divdc3 \
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divdi3 \
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divsc3 \
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divmodsi4 \
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udivmodsi4 \
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do_global_dtors \
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ffsdi2 \
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fixdfdi \
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fixsfdi \
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fixunsdfdi \
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fixunsdfsi \
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fixunssfdi \
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fixunssfsi \
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floatdidf \
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floatdisf \
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floatundidf \
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floatundisf \
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gcc_bcmp \
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lshrdi3 \
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moddi3 \
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muldc3 \
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muldi3 \
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mulsc3 \
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mulvdi3 \
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mulvsi3 \
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negdi2 \
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negvdi2 \
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negvsi2 \
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paritydi2 \
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paritysi2 \
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popcountdi2 \
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popcountsi2 \
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powidf2 \
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powisf2 \
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subvdi3 \
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subvsi3 \
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ucmpdi2 \
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udiv_w_sdiv \
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udivdi3 \
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udivmoddi4 \
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umoddi3 \
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adddf3 \
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addsf3 \
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cmpdf2 \
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cmpsf2 \
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div0 \
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divdf3 \
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divsf3 \
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divsi3 \
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extendsfdf2 \
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ffssi2 \
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fixdfsi \
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fixsfsi \
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floatsidf \
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floatsisf \
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floatunsidf \
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floatunsisf \
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comparedf2 \
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comparesf2 \
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modsi3 \
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muldf3 \
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mulsf3 \
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negdf2 \
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negsf2 \
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subdf3 \
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subsf3 \
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truncdfsf2 \
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udivsi3 \
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umodsi3 \
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unorddf2 \
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unordsf2
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ARM_FUNCTIONS := \
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aeabi_cdcmpeq \
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aeabi_cdrcmple \
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aeabi_cfcmpeq \
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aeabi_cfrcmple \
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aeabi_dcmpeq \
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aeabi_dcmpge \
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aeabi_dcmpgt \
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aeabi_dcmple \
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aeabi_dcmplt \
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aeabi_drsub \
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aeabi_fcmpeq \
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aeabi_fcmpge \
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aeabi_fcmpgt \
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aeabi_fcmple \
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aeabi_fcmplt \
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aeabi_frsub \
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aeabi_idivmod \
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aeabi_uidivmod \
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# ARM Assembly implementation which requires Thumb2 (i.e. won't work on v6M).
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THUMB2_FUNCTIONS := \
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switch16 \
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switch32 \
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switch8 \
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switchu8 \
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sync_fetch_and_add_4 \
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sync_fetch_and_sub_4 \
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sync_fetch_and_and_4 \
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sync_fetch_and_or_4 \
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sync_fetch_and_xor_4 \
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sync_fetch_and_nand_4 \
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sync_fetch_and_max_4 \
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sync_fetch_and_umax_4 \
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sync_fetch_and_min_4 \
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sync_fetch_and_umin_4 \
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sync_fetch_and_add_8 \
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sync_fetch_and_sub_8 \
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sync_fetch_and_and_8 \
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sync_fetch_and_or_8 \
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sync_fetch_and_xor_8 \
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sync_fetch_and_nand_8 \
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sync_fetch_and_max_8 \
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sync_fetch_and_umax_8 \
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sync_fetch_and_min_8 \
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sync_fetch_and_umin_8
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I386_FUNCTIONS := \
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i686.get_pc_thunk.eax \
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i686.get_pc_thunk.ebp \
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i686.get_pc_thunk.ebx \
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i686.get_pc_thunk.ecx \
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i686.get_pc_thunk.edi \
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i686.get_pc_thunk.edx \
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i686.get_pc_thunk.esi
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# FIXME: Currently, compiler-rt is missing implementations for a number of the
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# functions. Filter them out for now.
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MISSING_FUNCTIONS := \
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cmpdf2 cmpsf2 div0 \
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ffssi2 \
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udiv_w_sdiv unorddf2 unordsf2 bswapdi2 \
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bswapsi2 \
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gcc_bcmp \
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do_global_dtors \
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i686.get_pc_thunk.eax i686.get_pc_thunk.ebp i686.get_pc_thunk.ebx \
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i686.get_pc_thunk.ecx i686.get_pc_thunk.edi i686.get_pc_thunk.edx \
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i686.get_pc_thunk.esi \
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aeabi_cdcmpeq aeabi_cdrcmple aeabi_cfcmpeq aeabi_cfrcmple aeabi_dcmpeq \
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aeabi_dcmpge aeabi_dcmpgt aeabi_dcmple aeabi_dcmplt aeabi_drsub \
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aeabi_fcmpeq \ aeabi_fcmpge aeabi_fcmpgt aeabi_fcmple aeabi_fcmplt \
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aeabi_frsub aeabi_idivmod aeabi_uidivmod
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FUNCTIONS_ARMV6M := $(COMMON_FUNCTIONS) $(ARM_FUNCTIONS)
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FUNCTIONS_ARM_ALL := $(COMMON_FUNCTIONS) $(ARM_FUNCTIONS) $(THUMB2_FUNCTIONS)
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FUNCTIONS_I386 := $(COMMON_FUNCTIONS) $(I386_FUNCTIONS)
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FUNCTIONS_X86_64 := $(COMMON_FUNCTIONS)
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FUNCTIONS_ARMV6M := \
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$(filter-out $(MISSING_FUNCTIONS),$(FUNCTIONS_ARMV6M))
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FUNCTIONS_ARM_ALL := \
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$(filter-out $(MISSING_FUNCTIONS),$(FUNCTIONS_ARM_ALL))
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FUNCTIONS_I386 := \
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$(filter-out $(MISSING_FUNCTIONS),$(FUNCTIONS_I386))
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FUNCTIONS_X86_64 := \
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$(filter-out $(MISSING_FUNCTIONS),$(FUNCTIONS_X86_64))
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FUNCTIONS.soft_static.armv6m := $(FUNCTIONS_ARMV6M)
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FUNCTIONS.soft_pic.armv6m := $(FUNCTIONS_ARMV6M)
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FUNCTIONS.soft_static.armv7m := $(FUNCTIONS_ARM_ALL)
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FUNCTIONS.soft_pic.armv7m := $(FUNCTIONS_ARM_ALL)
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FUNCTIONS.soft_static.armv7em := $(FUNCTIONS_ARM_ALL)
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FUNCTIONS.hard_static.armv7em := $(FUNCTIONS_ARM_ALL)
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FUNCTIONS.soft_pic.armv7em := $(FUNCTIONS_ARM_ALL)
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FUNCTIONS.hard_pic.armv7em := $(FUNCTIONS_ARM_ALL)
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FUNCTIONS.soft_static.armv7 := $(FUNCTIONS_ARM_ALL)
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FUNCTIONS.hard_static.armv7 := $(FUNCTIONS_ARM_ALL)
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FUNCTIONS.soft_pic.armv7 := $(FUNCTIONS_ARM_ALL)
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FUNCTIONS.hard_pic.armv7 := $(FUNCTIONS_ARM_ALL)
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FUNCTIONS.hard_static.i386 := $(FUNCTIONS_I386)
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FUNCTIONS.hard_pic.i386 := $(FUNCTIONS_I386)
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FUNCTIONS.hard_static.x86_64 := $(FUNCTIONS_X86_64)
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FUNCTIONS.hard_pic.x86_64 := $(FUNCTIONS_X86_64)
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