diff options
Diffstat (limited to 'lib/std/debug.zig')
| -rw-r--r-- | lib/std/debug.zig | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/lib/std/debug.zig b/lib/std/debug.zig index c84a0e0f18..6cca67f302 100644 --- a/lib/std/debug.zig +++ b/lib/std/debug.zig @@ -336,6 +336,13 @@ pub const StackIterator = struct { fp: usize, pub fn init(first_address: ?usize, fp: ?usize) StackIterator { + if (builtin.arch == .sparcv9) { + // Flush all the register windows on stack. + asm volatile ( + \\ flushw + ::: "memory"); + } + return StackIterator{ .first_address = first_address, .fp = fp orelse @frameAddress(), @@ -343,18 +350,18 @@ pub const StackIterator = struct { } // Offset of the saved BP wrt the frame pointer. - const fp_offset = if (builtin.arch.isRISCV()) + const fp_offset = if (comptime builtin.arch.isRISCV()) // 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. 2 * @sizeOf(usize) - else if (builtin.arch.isSPARC()) + else if (comptime builtin.arch.isSPARC()) // On SPARC the previous frame pointer is stored at 14 slots past %fp+BIAS. 14 * @sizeOf(usize) else 0; - const fp_bias = if (builtin.arch.isSPARC()) + const fp_bias = if (comptime builtin.arch.isSPARC()) // On SPARC frame pointers are biased by a constant. 2047 else @@ -380,7 +387,7 @@ pub const StackIterator = struct { } fn next_internal(self: *StackIterator) ?usize { - const fp = if (builtin.arch.isSPARC()) + const fp = if (comptime builtin.arch.isSPARC()) // On SPARC the offset is positive. (!) math.add(usize, self.fp, fp_offset) catch return null else |