| ... | ... | @@ -14,6 +14,7 @@ else switch (native_arch) { |
| 14 | 14 | .lanai => Lanai, |
| 15 | 15 | .loongarch32, .loongarch64 => LoongArch, |
| 16 | 16 | .m68k => M68k, |
| 17 | .m88k => M88k, |
| 17 | 18 | .mips, .mipsel, .mips64, .mips64el => Mips, |
| 18 | 19 | .or1k => Or1k, |
| 19 | 20 | .powerpc, .powerpcle, .powerpc64, .powerpc64le => Powerpc, |
| ... | ... | @@ -62,6 +63,13 @@ pub fn fromPosixSignalContext(ctx_ptr: ?*const anyopaque) ?Native { |
| 62 | 63 | }, |
| 63 | 64 | .pc = @truncate(uc.mcontext.pc), |
| 64 | 65 | }; |
| 66 | } else if (native_arch == .m88k and native_os == .openbsd) { |
| 67 | // OpenBSD makes no effort to clear the V and E bits of the SXIP register when presenting it |
| 68 | // to user space, so we need to do that here. |
| 69 | return .{ |
| 70 | .r = uc.mcontext.r, |
| 71 | .xip = uc.mcontext.xip & ~@as(u32, 0b11), |
| 72 | }; |
| 65 | 73 | } else if (native_arch.isMIPS32() and native_os == .linux) { |
| 66 | 74 | // The O32 kABI uses 64-bit fields for some reason. |
| 67 | 75 | return .{ |
| ... | ... | @@ -894,6 +902,75 @@ const M68k = extern struct { |
| 894 | 902 | } |
| 895 | 903 | }; |
| 896 | 904 | |
| 905 | /// This is an `extern struct` so that inline assembly in `current` can use field offsets. |
| 906 | const M88k = extern struct { |
| 907 | /// The numbered general-purpose registers r0 - r31. |
| 908 | r: [32]u32, |
| 909 | xip: u32, |
| 910 | |
| 911 | pub inline fn current() M88k { |
| 912 | var ctx: M88k = undefined; |
| 913 | asm volatile ( |
| 914 | \\ st %%r0, %%r2, 0 |
| 915 | \\ st %%r1, %%r2, 4 |
| 916 | \\ st %%r2, %%r2, 8 |
| 917 | \\ st %%r3, %%r2, 12 |
| 918 | \\ st %%r4, %%r2, 16 |
| 919 | \\ st %%r5, %%r2, 20 |
| 920 | \\ st %%r6, %%r2, 24 |
| 921 | \\ st %%r7, %%r2, 28 |
| 922 | \\ st %%r8, %%r2, 32 |
| 923 | \\ st %%r9, %%r2, 36 |
| 924 | \\ st %%r10, %%r2, 40 |
| 925 | \\ st %%r11, %%r2, 44 |
| 926 | \\ st %%r12, %%r2, 48 |
| 927 | \\ st %%r13, %%r2, 52 |
| 928 | \\ st %%r14, %%r2, 56 |
| 929 | \\ st %%r15, %%r2, 60 |
| 930 | \\ st %%r16, %%r2, 64 |
| 931 | \\ st %%r17, %%r2, 68 |
| 932 | \\ st %%r18, %%r2, 72 |
| 933 | \\ st %%r19, %%r2, 76 |
| 934 | \\ st %%r20, %%r2, 80 |
| 935 | \\ st %%r21, %%r2, 84 |
| 936 | \\ st %%r22, %%r2, 88 |
| 937 | \\ st %%r23, %%r2, 92 |
| 938 | \\ st %%r24, %%r2, 96 |
| 939 | \\ st %%r25, %%r2, 100 |
| 940 | \\ st %%r26, %%r2, 104 |
| 941 | \\ st %%r27, %%r2, 108 |
| 942 | \\ st %%r28, %%r2, 112 |
| 943 | \\ st %%r29, %%r2, 116 |
| 944 | \\ st %%r30, %%r2, 120 |
| 945 | \\ st %%r31, %%r2, 124 |
| 946 | \\ bsr.n 1f |
| 947 | \\1: |
| 948 | \\ st %%r1, %%r2, 128 |
| 949 | : |
| 950 | : [ctx] "{r2}" (&ctx), |
| 951 | : .{ .r1 = true, .memory = true }); |
| 952 | return ctx; |
| 953 | } |
| 954 | |
| 955 | pub fn getFp(ctx: *const M88k) u32 { |
| 956 | return ctx.r[30]; |
| 957 | } |
| 958 | pub fn getPc(ctx: *const M88k) u32 { |
| 959 | return ctx.xip; |
| 960 | } |
| 961 | |
| 962 | pub fn dwarfRegisterBytes(ctx: *M88k, register_num: u16) DwarfRegisterError![]u8 { |
| 963 | switch (register_num) { |
| 964 | 0...31 => return @ptrCast(&ctx.r[register_num]), |
| 965 | 64 => return @ptrCast(&ctx.xip), |
| 966 | |
| 967 | 32...63 => return error.UnsupportedRegister, // x0 - x31 |
| 968 | |
| 969 | else => return error.InvalidRegister, |
| 970 | } |
| 971 | } |
| 972 | }; |
| 973 | |
| 897 | 974 | /// This is an `extern struct` so that inline assembly in `current` can use field offsets. |
| 898 | 975 | const Mips = extern struct { |
| 899 | 976 | /// The numbered general-purpose registers r0 - r31. r0 must be zero. |
| ... | ... | @@ -2363,6 +2440,18 @@ const signal_ucontext_t = switch (native_os) { |
| 2363 | 2440 | r23_29: [7]u32, |
| 2364 | 2441 | r31: u32, |
| 2365 | 2442 | }, |
| 2443 | // https://github.com/openbsd/src/blob/42468faed8369d07ae49ae02dd71ec34f59b66cd/sys/arch/m88k/include/signal.h |
| 2444 | .m88k => extern struct { |
| 2445 | _cookie: i32, |
| 2446 | _mask: i32, |
| 2447 | mcontext: extern struct { |
| 2448 | r: [32]u32, |
| 2449 | _epsr: u32, |
| 2450 | _fpsr: u32, |
| 2451 | _fpcr: u32, |
| 2452 | xip: u32, |
| 2453 | }, |
| 2454 | }, |
| 2366 | 2455 | // https://github.com/openbsd/src/blob/42468faed8369d07ae49ae02dd71ec34f59b66cd/sys/arch/mips64/include/signal.h |
| 2367 | 2456 | .mips64, .mips64el => extern struct { |
| 2368 | 2457 | _cookie: i64, |
Alex Rønne Petersen <alex@alexrp.com> 2026-05-23 11:00:41+02:00
Signed by SSH key SHA256:7B/LJ7bpR1eX8aCXSr4mtd5M45VMPKcx9zY8e95b5QM
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