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| author | Alex Rønne Petersen <alex@alexrp.com> | 2024-07-24 23:25:19 +0200 |
|---|---|---|
| committer | Alex Rønne Petersen <alex@alexrp.com> | 2024-07-30 17:47:46 +0200 |
| commit | 108c682df0ec6908695e55d3c3f50fe158a5d502 (patch) | |
| tree | 3526332eed5b78aadc045056a7a3eeefe5c1fc51 /lib/std/start.zig | |
| parent | 389ce984b5fc601b1b4e28e4ba47d051750afd83 (diff) | |
| download | zig-108c682df0ec6908695e55d3c3f50fe158a5d502.tar.gz zig-108c682df0ec6908695e55d3c3f50fe158a5d502.zip | |
start: Add POSIX csky support.
Diffstat (limited to 'lib/std/start.zig')
| -rw-r--r-- | lib/std/start.zig | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/lib/std/start.zig b/lib/std/start.zig index 74e177ce0b..76789bc5fc 100644 --- a/lib/std/start.zig +++ b/lib/std/start.zig @@ -316,6 +316,24 @@ fn _start() callconv(.Naked) noreturn { \\ and sp, #-16 \\ b %[posixCallMainAndExit] , + // zig fmt: off + .csky => + if (builtin.position_independent_code) + // The CSKY ABI assumes that `gb` is set to the address of the GOT in order for + // position-independent code to work. We depend on this in `std.os.linux.start_pie` + // to locate `_DYNAMIC` as well. + \\ grs t0, 1f + \\ 1: + \\ lrw gb, 1b@GOTPC + \\ addu gb, t0 + else "" + ++ + \\ movi lr, 0 + \\ mov a0, sp + \\ andi sp, sp, -8 + \\ jmpi %[posixCallMainAndExit] + , + // zig fmt: on .hexagon => // r29 = SP, r30 = FP \\ r30 = #0 |