projects / rustc.git / blame
| Commit | Line | Data |
|---|---|---|
| 1a4d82fc JJ |
1 | # This "platform" file is intended for building compiler-rt using gcc. |
| 2 | # The actual target platform is selected by setting the TargetTriple variable to the corresponding LLVM triple. | |
| 3 | ||
| 4 | Description := Static runtime libraries for platforms selected by 'TargetTriple' | |
| 5 | ||
| 6 | # Provide defaults for the required vars | |
| 7 | ifndef CC | |
| 8 | CC := gcc | |
| 9 | endif | |
| 10 | ifndef CFLAGS | |
| 11 | CFLAGS := -Wall -O3 | |
| 12 | endif | |
| 13 | ||
| 14 | Configs := builtins | |
| 15 | ||
| 16 | Arch := $(word 1,$(subst -, ,$(TargetTriple))) | |
| 17 | ifeq ($(Arch),i686) | |
| 18 | Arch := i386 | |
| 19 | else ifeq ($(Arch),arm) | |
| 20 | ifneq (,$(findstring ios,$(TargetTriple))) | |
| 21 | Arch := armv7 | |
| 22 | else ifneq (,$(findstring android,$(TargetTriple))) | |
| 23 | Arch := armv7 | |
| 24 | endif | |
| 25 | endif | |
| 26 | ||
| 27 | # Filter out stuff that gcc cannot compile (these are only needed for clang-generated code anywasys). | |
| 92a42be0 | 28 | CommonFunctions_gcc := $(filter-out atomic% enable_execute_stack,$(CommonFunctions)) |
| 1a4d82fc JJ |
29 | |
| 30 | # Filter out stuff which is not available on specific target | |
| 31 | # For example, sync_fetch_and_add_4 uses Thumb instructions, which are unavailable | |
| 32 | # when building for arm-linux-androideabi | |
| 33 | ifeq ($(TargetTriple),arm-linux-androideabi) | |
| 34 | ArchDisabledFunctions := \ | |
| 35 | sync_fetch_and_add_4 \ | |
| 36 | sync_fetch_and_sub_4 \ | |
| 37 | sync_fetch_and_and_4 \ | |
| 38 | sync_fetch_and_or_4 \ | |
| 39 | sync_fetch_and_xor_4 \ | |
| 40 | sync_fetch_and_nand_4 \ | |
| 41 | sync_fetch_and_max_4 \ | |
| 42 | sync_fetch_and_umax_4 \ | |
| 43 | sync_fetch_and_min_4 \ | |
| 44 | sync_fetch_and_umin_4 \ | |
| 45 | sync_fetch_and_add_8 \ | |
| 46 | sync_fetch_and_sub_8 \ | |
| 47 | sync_fetch_and_and_8 \ | |
| 48 | sync_fetch_and_or_8 \ | |
| 49 | sync_fetch_and_xor_8 \ | |
| 50 | sync_fetch_and_nand_8 \ | |
| 51 | sync_fetch_and_max_8 \ | |
| 52 | sync_fetch_and_umax_8 \ | |
| 53 | sync_fetch_and_min_8 \ | |
| 54 | sync_fetch_and_umin_8 | |
| 55 | endif | |
| 56 | ||
| 92a42be0 SL |
57 | # Disable emutls on MIPS |
| 58 | # Rust uses GCC 4.4 to cross-compile, which doesn't have some builtins | |
| 59 | ifneq (,$(findstring mips,$(TargetTriple))) | |
| 60 | CommonDisabledFunctions := emutls | |
| 61 | endif | |
| 62 | ||
| 63 | # Disable emutls on Windows | |
| 64 | # emutls works on POSIX only as it uses pthreads | |
| 65 | ifneq (,$(findstring windows,$(TargetTriple))) | |
| 66 | CommonDisabledFunctions := emutls | |
| 67 | endif | |
| 68 | ||
| 85aaf69f SL |
69 | # Clear cache is builtin on aarch64-apple-ios |
| 70 | # arm64 and aarch64 are synonims, but iOS targets usually use arm64 (history reasons) | |
| 71 | ifeq (aarch64-apple-ios,$(subst arm64,aarch64,$(TargetTriple))) | |
| 72 | CommonDisabledFunctions := clear_cache | |
| 73 | endif | |
| 1a4d82fc | 74 | |
| 85aaf69f SL |
75 | ArchEnabledFunctions := $(filter-out $(ArchDisabledFunctions),$(value ArchFunctions.$(Arch))) |
| 76 | CommonEnabledFunctions := $(filter-out $(CommonDisabledFunctions),$(CommonFunctions_gcc)) | |
| 1a4d82fc | 77 | |
| 85aaf69f | 78 | FUNCTIONS.builtins := $(CommonEnabledFunctions) $(ArchEnabledFunctions) |