| declare_args() { |
| # The target archs LLVM should support. Defaults to the host arch. |
| # Set to a list, e.g. `llvm_targets_to_build = [ "X86", "ARM" ]`, |
| # or to the string "all" to get all known targets. |
| llvm_targets_to_build = "host" |
| } |
| |
| # FIXME: Port the remaining targets. |
| llvm_all_targets = [ |
| "AArch64", |
| "AMDGPU", |
| "ARM", |
| "AVR", |
| "BPF", |
| "Hexagon", |
| "Lanai", |
| "Mips", |
| "NVPTX", |
| "PowerPC", |
| "RISCV", |
| "Sparc", |
| "SystemZ", |
| "WebAssembly", |
| "X86", |
| ] |
| |
| if (llvm_targets_to_build == "host") { |
| if (host_cpu == "arm64") { |
| llvm_targets_to_build = [ "AArch64" ] |
| } else if (host_cpu == "arm") { |
| llvm_targets_to_build = [ "ARM" ] |
| } else if (host_cpu == "ppc" || host_cpu == "ppc64") { |
| llvm_targets_to_build = [ "PowerPC" ] |
| } else if (host_cpu == "x86" || host_cpu == "x64") { |
| llvm_targets_to_build = [ "X86" ] |
| } else { |
| assert(false, "add your host_cpu above") |
| } |
| } else if (llvm_targets_to_build == "all") { |
| llvm_targets_to_build = llvm_all_targets |
| } |
| |
| # Validate that llvm_targets_to_build is set to a list of valid targets, |
| # and remember which targets are built where needed (for conditionally-built |
| # unittest targets). |
| llvm_build_AArch64 = false |
| llvm_build_AMDGPU = false |
| llvm_build_ARM = false |
| llvm_build_BPF = false |
| llvm_build_Mips = false |
| llvm_build_PowerPC = false |
| llvm_build_WebAssembly = false |
| llvm_build_X86 = false |
| foreach(target, llvm_targets_to_build) { |
| if (target == "AArch64") { |
| llvm_build_AArch64 = true |
| } else if (target == "AMDGPU") { |
| llvm_build_AMDGPU = true |
| } else if (target == "ARM") { |
| llvm_build_ARM = true |
| } else if (target == "BPF") { |
| llvm_build_BPF = true |
| } else if (target == "Mips") { |
| llvm_build_Mips = true |
| } else if (target == "PowerPC") { |
| llvm_build_PowerPC = true |
| } else if (target == "WebAssembly") { |
| llvm_build_WebAssembly = true |
| } else if (target == "X86") { |
| llvm_build_X86 = true |
| } else if (target == "AVR" || target == "Hexagon" || target == "Lanai" || |
| target == "NVPTX" || target == "RISCV" || target == "Sparc" || |
| target == "SystemZ") { |
| # Nothing to do. |
| } else { |
| all_targets_string = "" |
| foreach(target, llvm_all_targets) { |
| all_targets_string += "$0x0a " + target |
| } |
| assert(false, "Unknown target '$target' in llvm_targets_to_build. " + |
| "Known targets:" + all_targets_string) |
| } |
| } |
| |
| # FIXME: This should be based off target_cpu once cross compiles work. |
| if (host_cpu == "arm64") { |
| native_target = "AArch64" |
| } else if (host_cpu == "arm") { |
| native_target = "ARM" |
| } else if (host_cpu == "ppc" || host_cpu == "ppc64") { |
| native_target = "PowerPC" |
| } else if (host_cpu == "x86" || host_cpu == "x64") { |
| native_target = "X86" |
| } else { |
| assert(false, "Unsuppored host_cpu '$host_cpu'.") |
| } |