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std.os.linux: Add riscv32 support.

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This commit is contained in:
Alex Rønne Petersen
2024-06-22 16:11:52 +02:00
parent 2d1ee678eb
commit 7532a8a584
3 changed files with 227 additions and 11 deletions
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31
lib/std/os/linux.zig
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@@ -39,6 +39,7 @@ const arch_bits = switch (native_arch) {
.x86_64 => @import("linux/x86_64.zig"),
.aarch64, .aarch64_be => @import("linux/arm64.zig"),
.arm, .armeb, .thumb, .thumbeb => @import("linux/arm-eabi.zig"),
.riscv32 => @import("linux/riscv32.zig"),
.riscv64 => @import("linux/riscv64.zig"),
.sparc64 => @import("linux/sparc64.zig"),
.mips, .mipsel => @import("linux/mips.zig"),
@@ -104,6 +105,7 @@ pub const SYS = switch (@import("builtin").cpu.arch) {
.x86_64 => syscalls.X64,
.aarch64, .aarch64_be => syscalls.Arm64,
.arm, .armeb, .thumb, .thumbeb => syscalls.Arm,
.riscv32 => syscalls.RiscV32,
.riscv64 => syscalls.RiscV64,
.sparc64 => syscalls.Sparc64,
.mips, .mipsel => syscalls.Mips,
@@ -163,7 +165,7 @@ pub const MAP = switch (native_arch) {
UNINITIALIZED: bool = false,
_: u5 = 0,
},
.riscv64 => packed struct(u32) {
.riscv32, .riscv64 => packed struct(u32) {
TYPE: MAP_TYPE,
FIXED: bool = false,
ANONYMOUS: bool = false,
@@ -268,7 +270,7 @@ pub const O = switch (native_arch) {
TMPFILE: bool = false,
_: u9 = 0,
},
.x86, .riscv64 => packed struct(u32) {
.x86, .riscv32, .riscv64 => packed struct(u32) {
ACCMODE: ACCMODE = .RDONLY,
_2: u4 = 0,
CREAT: bool = false,
@@ -1840,7 +1842,11 @@ pub fn accept4(fd: i32, noalias addr: ?*sockaddr, noalias len: ?*socklen_t, flag
}
pub fn fstat(fd: i32, stat_buf: *Stat) usize {
if (@hasField(SYS, "fstat64")) {
if (native_arch == .riscv32) {
// riscv32 has made the interesting decision to not implement some of
// the older stat syscalls, including this one.
@compileError("No fstat syscall on this architecture.");
} else if (@hasField(SYS, "fstat64")) {
return syscall2(.fstat64, @as(usize, @bitCast(@as(isize, fd))), @intFromPtr(stat_buf));
} else {
return syscall2(.fstat, @as(usize, @bitCast(@as(isize, fd))), @intFromPtr(stat_buf));
@@ -1848,7 +1854,11 @@ pub fn fstat(fd: i32, stat_buf: *Stat) usize {
}
pub fn stat(pathname: [*:0]const u8, statbuf: *Stat) usize {
if (@hasField(SYS, "stat64")) {
if (native_arch == .riscv32) {
// riscv32 has made the interesting decision to not implement some of
// the older stat syscalls, including this one.
@compileError("No stat syscall on this architecture.");
} else if (@hasField(SYS, "stat64")) {
return syscall2(.stat64, @intFromPtr(pathname), @intFromPtr(statbuf));
} else {
return syscall2(.stat, @intFromPtr(pathname), @intFromPtr(statbuf));
@@ -1856,7 +1866,11 @@ pub fn stat(pathname: [*:0]const u8, statbuf: *Stat) usize {
}
pub fn lstat(pathname: [*:0]const u8, statbuf: *Stat) usize {
if (@hasField(SYS, "lstat64")) {
if (native_arch == .riscv32) {
// riscv32 has made the interesting decision to not implement some of
// the older stat syscalls, including this one.
@compileError("No lstat syscall on this architecture.");
} else if (@hasField(SYS, "lstat64")) {
return syscall2(.lstat64, @intFromPtr(pathname), @intFromPtr(statbuf));
} else {
return syscall2(.lstat, @intFromPtr(pathname), @intFromPtr(statbuf));
@@ -1864,7 +1878,11 @@ pub fn lstat(pathname: [*:0]const u8, statbuf: *Stat) usize {
}
pub fn fstatat(dirfd: i32, path: [*:0]const u8, stat_buf: *Stat, flags: u32) usize {
if (@hasField(SYS, "fstatat64")) {
if (native_arch == .riscv32) {
// riscv32 has made the interesting decision to not implement some of
// the older stat syscalls, including this one.
@compileError("No fstatat syscall on this architecture.");
} else if (@hasField(SYS, "fstatat64")) {
return syscall4(.fstatat64, @as(usize, @bitCast(@as(isize, dirfd))), @intFromPtr(path), @intFromPtr(stat_buf), flags);
} else {
return syscall4(.fstatat, @as(usize, @bitCast(@as(isize, dirfd))), @intFromPtr(path), @intFromPtr(stat_buf), flags);
@@ -7352,6 +7370,7 @@ pub const AUDIT = struct {
.x86_64 => .X86_64,
.aarch64 => .AARCH64,
.arm, .thumb => .ARM,
.riscv32 => .RISCV32,
.riscv64 => .RISCV64,
.sparc64 => .SPARC64,
.mips => .MIPS,