| # Copyright lowRISC contributors. |
| # Licensed under the Apache License, Version 2.0, see LICENSE for details. |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| # TODO(drewmacrae) this should be in rules_cc |
| # pending resolution of https://github.com/bazelbuild/rules_cc/issues/75 |
| load("//rules:bugfix.bzl", "find_cc_toolchain") |
| |
| """Rules to build OpenTitan for the RiscV target""" |
| |
| OPENTITAN_CPU = "@bazel_embedded//constraints/cpu:riscv32" |
| OPENTITAN_PLATFORM = "@bazel_embedded//platforms:opentitan_rv32imc" |
| |
| _targets_compatible_with = { |
| OPENTITAN_PLATFORM: [OPENTITAN_CPU], |
| } |
| |
| def _opentitan_transition_impl(settings, attr): |
| return {"//command_line_option:platforms": attr.platform} |
| |
| opentitan_transition = transition( |
| implementation = _opentitan_transition_impl, |
| inputs = [], |
| outputs = ["//command_line_option:platforms"], |
| ) |
| |
| def _obj_transform(ctx): |
| cc_toolchain = find_cc_toolchain(ctx) |
| outputs = [] |
| for src in ctx.files.srcs: |
| binary = ctx.actions.declare_file("{}.{}".format(src.basename, ctx.attr.suffix)) |
| outputs.append(binary) |
| ctx.actions.run( |
| outputs = [binary], |
| inputs = [src] + cc_toolchain.all_files.to_list(), |
| arguments = [ |
| "--output-target", |
| ctx.attr.format, |
| src.path, |
| binary.path, |
| ], |
| executable = cc_toolchain.objcopy_executable, |
| ) |
| return [DefaultInfo(files = depset(outputs), data_runfiles = ctx.runfiles(files = outputs))] |
| |
| obj_transform = rule( |
| implementation = _obj_transform, |
| cfg = opentitan_transition, |
| attrs = { |
| "srcs": attr.label_list(allow_files = True), |
| "suffix": attr.string(default = "bin"), |
| "format": attr.string(default = "binary"), |
| "platform": attr.string(default = OPENTITAN_PLATFORM), |
| "_cc_toolchain": attr.label(default = Label("@bazel_tools//tools/cpp:current_cc_toolchain")), |
| "_allowlist_function_transition": attr.label( |
| default = "@bazel_tools//tools/allowlists/function_transition_allowlist", |
| ), |
| }, |
| toolchains = ["@rules_cc//cc:toolchain_type"], |
| ) |
| |
| def _elf_to_disassembly(ctx): |
| cc_toolchain = find_cc_toolchain(ctx) |
| outputs = [] |
| for src in ctx.files.srcs: |
| disassembly = ctx.actions.declare_file("{}.dis".format(src.basename)) |
| outputs.append(disassembly) |
| ctx.actions.run_shell( |
| outputs = [disassembly], |
| inputs = [src] + cc_toolchain.all_files.to_list(), |
| arguments = [ |
| cc_toolchain.objdump_executable, |
| src.path, |
| disassembly.path, |
| ], |
| command = "$1 --disassemble --headers --line-numbers --source $2 > $3", |
| ) |
| return [DefaultInfo(files = depset(outputs), data_runfiles = ctx.runfiles(files = outputs))] |
| |
| elf_to_disassembly = rule( |
| implementation = _elf_to_disassembly, |
| cfg = opentitan_transition, |
| attrs = { |
| "srcs": attr.label_list(allow_files = True), |
| "platform": attr.string(default = OPENTITAN_PLATFORM), |
| "_cc_toolchain": attr.label(default = Label("@bazel_tools//tools/cpp:current_cc_toolchain")), |
| "_allowlist_function_transition": attr.label( |
| default = "@bazel_tools//tools/allowlists/function_transition_allowlist", |
| ), |
| }, |
| toolchains = ["@rules_cc//cc:toolchain_type"], |
| incompatible_use_toolchain_transition = True, |
| ) |
| |
| def _elf_to_scrambled(ctx): |
| outputs = [] |
| for src in ctx.files.srcs: |
| scrambled = ctx.actions.declare_file("{}.scr.40.vmem".format(src.basename)) |
| outputs.append(scrambled) |
| ctx.actions.run( |
| outputs = [scrambled], |
| inputs = [ |
| src, |
| ctx.files._tool[0], |
| ctx.files._config[0], |
| ], |
| arguments = [ |
| ctx.files._config[0].path, |
| src.path, |
| scrambled.path, |
| ], |
| executable = ctx.files._tool[0].path, |
| ) |
| return [DefaultInfo(files = depset(outputs), data_runfiles = ctx.runfiles(files = outputs))] |
| |
| elf_to_scrambled = rule( |
| implementation = _elf_to_scrambled, |
| cfg = opentitan_transition, |
| attrs = { |
| "srcs": attr.label_list(allow_files = True), |
| "platform": attr.string(default = OPENTITAN_PLATFORM), |
| "_tool": attr.label(default = "//hw/ip/rom_ctrl/util:scramble_image.py", allow_files = True), |
| "_config": attr.label(default = "//hw/top_earlgrey/data:autogen/top_earlgrey.gen.hjson", allow_files = True), |
| "_allowlist_function_transition": attr.label( |
| default = "@bazel_tools//tools/allowlists/function_transition_allowlist", |
| ), |
| }, |
| ) |
| |
| def opentitan_binary( |
| name, |
| platform = OPENTITAN_PLATFORM, |
| per_device_deps = { |
| "verilator": ["//sw/device/lib/arch:sim_verilator"], |
| "dv": ["//sw/device/lib/arch:sim_dv"], |
| "fpga_nexysvideo": ["//sw/device/lib/arch:fpga_nexysvideo"], |
| "cw310": ["//sw/device/lib/arch:fpga_cw310"], |
| }, |
| output_bin = True, |
| output_disassembly = True, |
| output_scrambled = False, |
| **kwargs): |
| """A helper macro for generating OpenTitan binary artifacts. |
| This macro is mostly a wrapper around cc_binary, but creates artifacts |
| for each of the keys in `per_device_deps`. The actual artifacts |
| created are an ELF file, a BIN file, the disassembly and the scrambled |
| ROM image. Each of these output targets performs a bazel transition to |
| the RV32I toolchain to build the target under the correct compiler. |
| Args: |
| @param name: The name of this rule. |
| @param platform: The target platform for the artifacts. |
| @param per_device_deps: The deps for each of the execution environments. |
| @param output_bin: Whether or not to emit a BIN file. |
| @param output_disassembly: Whether or not to emit a disassembly file. |
| @param output_scrambled: Whether or not to emit a SCR file. |
| @param **kwargs: Arguments to forward to `cc_binary`. |
| Emits rules: |
| For each device in per_device_deps entry: |
| cc_binary named: name_device |
| obj_transform named: name_device_elf |
| optionally: |
| obj_transform named: name_device_bin |
| elf_to_dissassembly named: name_device_dis |
| elf_to_scrambled named: name_device_scr |
| filegroup named: name |
| with all the generated rules |
| """ |
| |
| copts = kwargs.pop("copts", []) + [ |
| "-nostdlib", |
| "-ffreestanding", |
| ] |
| linkopts = kwargs.pop("linkopts", []) + [ |
| "-nostartfiles", |
| "-nostdlib", |
| ] |
| deps = kwargs.pop("deps", []) |
| targets = [] |
| for (device, dev_deps) in per_device_deps.items(): |
| devname = "{}_{}".format(name, device) |
| native.cc_binary( |
| name = devname, |
| deps = deps + dev_deps, |
| target_compatible_with = _targets_compatible_with[platform], |
| copts = copts, |
| linkopts = linkopts, |
| **kwargs |
| ) |
| targets.append(":" + devname + "_elf") |
| obj_transform( |
| name = devname + "_elf", |
| srcs = [devname], |
| format = "elf32-little", |
| suffix = "elf", |
| platform = platform, |
| ) |
| |
| if output_bin: |
| targets.append(":" + devname + "_bin") |
| obj_transform( |
| name = devname + "_bin", |
| srcs = [devname], |
| platform = platform, |
| ) |
| |
| if output_disassembly: |
| targets.append(":" + devname + "_dis") |
| elf_to_disassembly( |
| name = devname + "_dis", |
| srcs = [devname], |
| platform = platform, |
| ) |
| if output_scrambled: |
| targets.append(":" + devname + "_scr") |
| elf_to_scrambled( |
| name = devname + "_scr", |
| srcs = [devname], |
| platform = platform, |
| ) |
| |
| native.filegroup( |
| name = name, |
| srcs = targets, |
| ) |
| |
| def verilator_params( |
| rom = "//sw/device/lib/testing/test_rom:test_rom_verilator_scr", |
| otp = "//hw/ip/otp_ctrl/data:rma_image_verilator", |
| tags = [ |
| "cpu:4", |
| ], |
| timeout = "moderate", |
| local = True, |
| args = [ |
| "console", |
| "--exit-failure=FAIL", |
| "--exit-success=PASS", |
| "--timeout=3600", |
| ], |
| data = [], |
| **kwargs): |
| """A macro to create verilator parameters for OpenTitan functional tests. |
| |
| This macro emits a dictionary of parameters which are pasted into the |
| verilator specific test rule. |
| |
| Args: |
| @param rom: The ROM to use when booting verilator. |
| @param otp: The OTP image to use when booting verilator. |
| @param tags: The test tags to apply to the test rule. |
| @param timeout: The timeout to apply to the test rule. |
| @param local: Whether the test should be run locally and without sandboxing. |
| @param args: Arguments to pass to the test. |
| @param data: Data dependencies of the test. |
| """ |
| kwargs.update(rom = rom, otp = otp, tags = tags + ["verilator"], timeout = timeout, local = local, args = args, data = data) |
| return kwargs |
| |
| def cw310_params( |
| tags = [], |
| timeout = "moderate", |
| local = True, |
| args = [ |
| "--exec=\"console -q -t0\"", |
| "--exec=\"bootstrap $(location {test_bin})\"", |
| "console", |
| "--exit-failure=FAIL", |
| "--exit-success=PASS", |
| "--timeout=3600", |
| ], |
| data = [], |
| **kwargs): |
| """A macro to create CW310 parameters for OpenTitan functional tests. |
| |
| This macro emits a dictionary of parameters which are pasted into the |
| ChipWhisperer-310 specific test rule. |
| |
| Args: |
| @param tags: The test tags to apply to the test rule. |
| @param timeout: The timeout to apply to the test rule. |
| @param local: Whether the test should be run locally and without sandboxing. |
| @param args: Arguments to pass to the test. |
| @param data: Data dependencies of the test. |
| """ |
| kwargs.update(tags = tags + ["cw310", "exclusive"], timeout = timeout, local = local, args = args, data = data) |
| return kwargs |
| |
| def _format_list(name, list1, datadict, **kwargs): |
| """Concatenate and format list items. |
| |
| This is used to prepare substitutions in user-supplied args to the |
| various test invocations (ie: the location of test_bin). |
| Args: |
| @param name: The name of the item in `datadict`. |
| @param list1: A list of items to prepend to the list item from datadict. |
| @param datadict: A dictionary of per-test parameters. |
| @param **kwargs: Values to pass to the format function. |
| Returns: |
| list[str] |
| """ |
| return [x.format(**kwargs) for x in list1 + datadict.pop(name, [])] |
| |
| _OTTF_DEPS = [ |
| "//sw/device/lib/arch:device", |
| "//sw/device/lib/base", |
| "//sw/device/lib/runtime:hart", |
| "//sw/device/lib/runtime:log", |
| "//sw/device/lib/runtime:print", |
| "//sw/device/lib/crt", |
| "//sw/device/lib/testing/test_framework:ottf_start", |
| "//sw/device/lib/testing/test_framework:ottf", |
| "//sw/device/lib/base:mmio", |
| ] |
| |
| def _unique_deps(*deplists): |
| uniq = {} |
| for deplist in deplists: |
| for dep in deplist: |
| uniq[dep] = True |
| return uniq.keys() |
| |
| def opentitan_functest( |
| name, |
| platform = OPENTITAN_PLATFORM, |
| targets = ["verilator", "cw310"], |
| args = [], |
| data = [], |
| ottf = _OTTF_DEPS, |
| verilator = None, |
| cw310 = None, |
| **kwargs): |
| """A helper macro for generating OpenTitan functional tests. |
| This macro is mostly a wrapper around opentitan_binary, but creates |
| testing artifacts for each of the keys in `per_device_deps`. |
| The testing artifacts are then given to an `sh_test` rule which |
| dispatches the test via opentitantool. |
| Args: |
| @param name: The name of this rule. |
| @param platform: The target platform for the artifacts. |
| @param targets: A list of targets on which to dispatch tests. |
| @param args: Extra arguments to pass to `opentitantool`. |
| @param data: Extra data dependencies needed while executing the test. |
| @param ottf: Default dependencies for OTTF tests. Set to empty list if |
| your test doesn't use the OTTF. |
| @param **kwargs: Arguments to forward to `opentitan_binary`. |
| |
| This macro emits the following rules: |
| opentitan_binary named: {name}_prog (and all of its emitted rules). |
| sh_test named: verilator_{name} |
| sh_test named: cw310_{name} |
| test_suite named: {name} |
| """ |
| |
| deps = _unique_deps(kwargs.pop("deps", []), ottf) |
| opentitan_binary( |
| name = name + "_prog", |
| platform = platform, |
| output_disassembly = True, |
| deps = deps, |
| **kwargs |
| ) |
| |
| all_tests = [] |
| |
| if "verilator" in targets: |
| test_name = "verilator_{}".format(name) |
| test_bin = "{}_prog_verilator_elf".format(name) |
| |
| if verilator == None: |
| verilator = verilator_params() |
| rom = verilator.pop("rom") |
| otp = verilator.pop("otp") |
| vargs = _format_list("args", args, verilator, test_bin = test_bin) |
| vdata = _format_list("data", data, verilator, test_bin = test_bin) |
| |
| if "manual" not in verilator.get("tags", []): |
| all_tests.append(test_name) |
| |
| native.sh_test( |
| name = test_name, |
| srcs = ["//util:opentitantool_test_runner.sh"], |
| args = [ |
| "--rcfile=", |
| "--logging=info", |
| "--interface=verilator", |
| "--conf=sw/host/opentitantool/config/opentitan_verilator.json", |
| "--verilator-bin=$(location //hw:verilator)/sim-verilator/Vchip_sim_tb", |
| "--verilator-rom=$(location {})".format(rom), |
| "--verilator-flash=$(location {})".format(test_bin), |
| "--verilator-otp=$(location {})".format(otp), |
| ] + vargs, |
| data = [ |
| test_bin, |
| rom, |
| otp, |
| "//sw/host/opentitantool:test_resources", |
| "//hw:verilator", |
| ] + vdata, |
| **verilator |
| ) |
| |
| if "cw310" in targets: |
| test_name = "cw310_{}".format(name) |
| test_bin = "{}_prog_cw310_bin".format(name) |
| |
| if cw310 == None: |
| cw310 = cw310_params() |
| cargs = _format_list("args", args, cw310, test_bin = test_bin) |
| cdata = _format_list("data", data, cw310, test_bin = test_bin) |
| |
| if "manual" not in verilator.get("tags", []): |
| all_tests.append(test_name) |
| |
| native.sh_test( |
| name = test_name, |
| srcs = ["//util:opentitantool_test_runner.sh"], |
| args = [ |
| "--rcfile=", |
| "--logging=info", |
| "--interface=cw310", |
| "--conf=sw/host/opentitantool/config/opentitan_cw310.json", |
| ] + cargs, |
| data = [ |
| test_bin, |
| "//sw/host/opentitantool:test_resources", |
| ] + cdata, |
| **cw310 |
| ) |
| |
| native.test_suite( |
| name = name, |
| tests = all_tests, |
| ) |