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start: Add POSIX m68k startup code.

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Alex Rønne Petersen 2024-07-22 12:55:08 +02:00
parent 142209444a
commit 1fa5ca24fe
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8
lib/std/start.zig
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@ -307,6 +307,14 @@ fn _start() callconv(.Naked) noreturn {
\\ andi sp, sp, -16 \\ andi sp, sp, -16
\\ tail %[posixCallMainAndExit]@plt \\ tail %[posixCallMainAndExit]@plt
, ,
.m68k =>
// Note that the - 8 is needed because pc in the jsr instruction points into the middle
// of the jsr instruction. (The lea is 6 bytes, the jsr is 4 bytes.)
\\ suba.l %%fp, %%fp
\\ move.l %%sp, -(%%sp)
\\ lea %[posixCallMainAndExit] - . - 8, %%a0
\\ jsr (%%pc, %%a0)
,
.mips, .mipsel => .mips, .mipsel =>
// The lr is already zeroed on entry, as specified by the ABI. // The lr is already zeroed on entry, as specified by the ABI.
\\ addiu $fp, $zero, 0 \\ addiu $fp, $zero, 0