Microzig Generation 2 Build Interface (#21)
* MicroZig Gen 2 interface * Adds ELF patching to handle the checksum requirement --------- Co-authored-by: Felix "xq" Queißner <git@random-projects.net>wch-ch32v003
Felix Queißner
1 year ago
committed by
GitHub
parent
32c4eacccf
commit
696e309f6d
@ -1,3 +0,0 @@
|
||||
[submodule "deps/microzig"]
|
||||
path = deps/microzig
|
||||
url = https://github.com/ZigEmbeddedGroup/microzig.git
|
||||
@ -1,38 +1,95 @@
|
||||
const std = @import("std");
|
||||
const microzig = @import("deps/microzig/build.zig");
|
||||
|
||||
pub const boards = @import("src/boards.zig");
|
||||
pub const chips = @import("src/chips.zig");
|
||||
fn path(comptime suffix: []const u8) std.Build.LazyPath {
|
||||
return .{
|
||||
.cwd_relative = comptime ((std.fs.path.dirname(@src().file) orelse ".") ++ suffix),
|
||||
};
|
||||
}
|
||||
|
||||
pub fn build(b: *std.build.Builder) void {
|
||||
const optimize = b.standardOptimizeOption(.{});
|
||||
inline for (@typeInfo(boards).Struct.decls) |decl| {
|
||||
if (!decl.is_pub)
|
||||
continue;
|
||||
const hal = .{
|
||||
.source_file = path("/src/hals/LPC176x5x.zig"),
|
||||
};
|
||||
|
||||
const exe = microzig.addEmbeddedExecutable(b, .{
|
||||
.name = @field(boards, decl.name).name ++ ".minimal",
|
||||
.source_file = .{
|
||||
.path = "test/programs/minimal.zig",
|
||||
pub const chips = struct {
|
||||
pub const lpc176x5x = .{
|
||||
.preferred_format = .elf,
|
||||
.chip = .{
|
||||
// TODO: Separate over those chips, this is not generic!
|
||||
.name = "LPC176x5x",
|
||||
.cpu = .cortex_m3,
|
||||
.memory_regions = &.{
|
||||
.{ .offset = 0x00000000, .length = 512 * 1024, .kind = .flash },
|
||||
.{ .offset = 0x10000000, .length = 32 * 1024, .kind = .ram },
|
||||
.{ .offset = 0x2007C000, .length = 32 * 1024, .kind = .ram },
|
||||
},
|
||||
.backing = .{ .board = @field(boards, decl.name) },
|
||||
.optimize = optimize,
|
||||
});
|
||||
exe.installArtifact(b);
|
||||
}
|
||||
|
||||
inline for (@typeInfo(chips).Struct.decls) |decl| {
|
||||
if (!decl.is_pub)
|
||||
continue;
|
||||
.register_definition = .{
|
||||
.json = path("/src/chips/LPC176x5x.json"),
|
||||
},
|
||||
},
|
||||
.hal = hal,
|
||||
.binary_post_process = postprocess,
|
||||
};
|
||||
};
|
||||
|
||||
const exe = microzig.addEmbeddedExecutable(b, .{
|
||||
.name = @field(chips, decl.name).name ++ ".minimal",
|
||||
.source_file = .{
|
||||
.path = "test/programs/minimal.zig",
|
||||
pub const boards = struct {
|
||||
pub const mbed = struct {
|
||||
pub const lpc1768 = .{
|
||||
.preferred_format = .hex,
|
||||
.chip = chips.lpc176x5x.chip,
|
||||
.hal = hal,
|
||||
.board = .{
|
||||
.name = "mbed LPC1768",
|
||||
.url = "https://os.mbed.com/platforms/mbed-LPC1768/",
|
||||
.source_file = path("/src/boards/mbed_LPC1768.zig"),
|
||||
},
|
||||
.backing = .{ .chip = @field(chips, decl.name) },
|
||||
.optimize = optimize,
|
||||
.binary_post_process = postprocess,
|
||||
};
|
||||
};
|
||||
};
|
||||
|
||||
/// Post-processes an ELF file to add a checksum over the first 8 words so the
|
||||
/// cpu will properly boot.
|
||||
fn postprocess(b: *std.Build, input: std.Build.LazyPath) std.Build.LazyPath {
|
||||
const patchelf = b.addExecutable(.{
|
||||
.name = "lpc176x5x-patchelf",
|
||||
.root_source_file = path("/src/tools/patchelf.zig"),
|
||||
});
|
||||
exe.installArtifact(b);
|
||||
}
|
||||
|
||||
const patch = b.addRunArtifact(patchelf);
|
||||
patch.addFileArg(input);
|
||||
return patch.addOutputFileArg("firmware.elf");
|
||||
}
|
||||
|
||||
pub fn build(b: *std.Build) void {
|
||||
_ = b;
|
||||
// const optimize = b.standardOptimizeOption(.{});
|
||||
// inline for (@typeInfo(boards).Struct.decls) |decl| {
|
||||
// if (!decl.is_pub)
|
||||
// continue;
|
||||
|
||||
// const exe = microzig.addEmbeddedExecutable(b, .{
|
||||
// .name = @field(boards, decl.name).name ++ ".minimal",
|
||||
// .source_file = .{
|
||||
// .path = "test/programs/minimal.zig",
|
||||
// },
|
||||
// .backing = .{ .board = @field(boards, decl.name) },
|
||||
// .optimize = optimize,
|
||||
// });
|
||||
// exe.installArtifact(b);
|
||||
// }
|
||||
|
||||
// inline for (@typeInfo(chips).Struct.decls) |decl| {
|
||||
// if (!decl.is_pub)
|
||||
// continue;
|
||||
|
||||
// const exe = microzig.addEmbeddedExecutable(b, .{
|
||||
// .name = @field(chips, decl.name).name ++ ".minimal",
|
||||
// .source_file = .{
|
||||
// .path = "test/programs/minimal.zig",
|
||||
// },
|
||||
// .backing = .{ .chip = @field(chips, decl.name) },
|
||||
// .optimize = optimize,
|
||||
// });
|
||||
// exe.installArtifact(b);
|
||||
// }
|
||||
}
|
||||
|
||||
@ -1 +0,0 @@
|
||||
Subproject commit 9392fe0f7bddde26155c181ab80b70097b49c791
|
||||
@ -1,13 +0,0 @@
|
||||
const std = @import("std");
|
||||
const micro = @import("../deps/microzig/build.zig");
|
||||
const chips = @import("chips.zig");
|
||||
|
||||
fn root_dir() []const u8 {
|
||||
return std.fs.path.dirname(@src().file) orelse ".";
|
||||
}
|
||||
|
||||
pub const mbed_lpc1768 = micro.Board{
|
||||
.name = "mbed LPC1768",
|
||||
.source = .{ .path = root_dir() ++ "/boards/mbed_LPC1768.zig" },
|
||||
.chip = chips.lpc176x5x,
|
||||
};
|
||||
@ -1,18 +0,0 @@
|
||||
const std = @import("std");
|
||||
const micro = @import("../deps/microzig/build.zig");
|
||||
const Chip = micro.Chip;
|
||||
const MemoryRegion = micro.MemoryRegion;
|
||||
|
||||
fn root_dir() []const u8 {
|
||||
return std.fs.path.dirname(@src().file) orelse unreachable;
|
||||
}
|
||||
|
||||
pub const lpc176x5x = Chip.from_standard_paths(root_dir(), .{
|
||||
.name = "LPC176x5x",
|
||||
.cpu = micro.cpus.cortex_m3,
|
||||
.memory_regions = &.{
|
||||
MemoryRegion{ .offset = 0x00000000, .length = 512 * 1024, .kind = .flash },
|
||||
MemoryRegion{ .offset = 0x10000000, .length = 32 * 1024, .kind = .ram },
|
||||
MemoryRegion{ .offset = 0x2007C000, .length = 32 * 1024, .kind = .ram },
|
||||
},
|
||||
});
|
||||
File diff suppressed because it is too large
Load Diff
@ -0,0 +1,66 @@
|
||||
const std = @import("std");
|
||||
|
||||
pub fn main() !u8 {
|
||||
const argv = try std.process.argsAlloc(std.heap.page_allocator);
|
||||
defer std.process.argsFree(std.heap.page_allocator, argv);
|
||||
|
||||
if (argv.len != 3) {
|
||||
std.log.err("usage: lpc-patchelf <input> <output>", .{});
|
||||
return 1;
|
||||
}
|
||||
|
||||
const input_file_name = argv[1];
|
||||
const output_file_name = argv[2];
|
||||
|
||||
try std.fs.Dir.copyFile(
|
||||
std.fs.cwd(),
|
||||
input_file_name,
|
||||
std.fs.cwd(),
|
||||
output_file_name,
|
||||
.{},
|
||||
);
|
||||
|
||||
var file = try std.fs.cwd().openFile(output_file_name, .{ .mode = .read_write });
|
||||
defer file.close();
|
||||
|
||||
const header = try std.elf.Header.read(file);
|
||||
|
||||
var iter = header.program_header_iterator(file);
|
||||
while (try iter.next()) |phdr| {
|
||||
if (phdr.p_type != std.elf.PT_LOAD) {
|
||||
continue;
|
||||
}
|
||||
|
||||
if (phdr.p_paddr != 0) {
|
||||
// std.log.warn("LOAD program header is not located at address 0x00000000!", .{});
|
||||
break;
|
||||
}
|
||||
|
||||
const boot_sector_items = 8;
|
||||
const boot_sector_size = @sizeOf([boot_sector_items]u32);
|
||||
|
||||
if (phdr.p_filesz < boot_sector_size) {
|
||||
std.log.warn("boot header is too small! Expected {} bytes, but sector only has {} bytes!", .{
|
||||
boot_sector_size,
|
||||
phdr.p_filesz,
|
||||
});
|
||||
continue;
|
||||
}
|
||||
|
||||
try file.seekTo(phdr.p_offset);
|
||||
var reader = file.reader();
|
||||
var writer = file.writer();
|
||||
|
||||
var checksum: u32 = 0;
|
||||
|
||||
var i: usize = 0;
|
||||
while (i < boot_sector_items - 1) : (i += 1) {
|
||||
const item = try reader.readIntLittle(u32);
|
||||
checksum -%= item;
|
||||
}
|
||||
|
||||
try writer.writeIntLittle(u32, checksum);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
Loading…
Reference in New Issue