std.debug: fix FP unwinding for LoongArch

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Alex Rønne Petersen 2025-10-09 20:42:54 +02:00
parent 98f0bf9b67
commit 3f5e782357
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@ -988,7 +988,7 @@ const StackIterator = union(enum) {
// On RISC-V the frame pointer points to the top of the saved register
// area, on pretty much every other architecture it points to the stack
// slot where the previous frame pointer is saved.
if (native_arch.isRISCV()) break :off -2 * @sizeOf(usize);
if (native_arch.isLoongArch() or native_arch.isRISCV()) break :off -2 * @sizeOf(usize);
// On SPARC the previous frame pointer is stored at 14 slots past %fp+BIAS.
if (native_arch.isSPARC()) break :off 14 * @sizeOf(usize);
break :off 0;
@ -996,7 +996,7 @@ const StackIterator = union(enum) {
/// Offset of the saved return address wrt the frame pointer.
const ra_offset = off: {
if (native_arch.isRISCV()) break :off -1 * @sizeOf(usize);
if (native_arch.isLoongArch() or native_arch.isRISCV()) break :off -1 * @sizeOf(usize);
if (native_arch.isSPARC()) break :off 15 * @sizeOf(usize);
if (native_arch.isPowerPC64()) break :off 2 * @sizeOf(usize);
// On s390x, r14 is the link register and we need to grab it from its customary slot in the