start: Add POSIX hexagon support.

2025-12-06 06:13:07 +00:00 · 2024-07-24 22:18:29 +02:00 · 2024-07-24 22:18:29 +02:00 · 7c98a65ae4
commit 7c98a65ae4
parent ed847b85c2
1 changed files with 9 additions and 0 deletions
--- a/lib/std/start.zig
+++ b/lib/std/start.zig
@ -307,6 +307,15 @@ fn _start() callconv(.Naked) noreturn {
            \\ and sp, #-16
            \\ b %[posixCallMainAndExit]
            ,
+            .hexagon =>
+            // r29 = SP, r30 = FP
+            \\ r30 = #0
+            \\ r0 = r29
+            \\ r29 = and(r29, #-16)
+            \\ memw(r29 + #-8) = r29
+            \\ r29 = add(r29, #-8)
+            \\ call %[posixCallMainAndExit]
+            ,
            .loongarch32, .loongarch64 =>
            \\ move $fp, $zero
            \\ move $a0, $sp