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| 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_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 == "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 == "AMDGPU" || 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'.")
}
|