zig

commit edbfd04ec1fa11fde88166c4b906b7868cbbf218 (tree)
parent 9306dbd6194251e816f11bc8f420fac0d1ca8835
Author: Jakub Konka <kubkon@jakubkonka.com>
Date:   Tue,  8 Sep 2020 22:00:31 +0200

Do not pad out text blocks

It seems MachO does not like padding between text block in __text
section. Unlike in Elf, there is no size information in symbol
struct `nlist_64`.

Signed-off-by: Jakub Konka <kubkon@jakubkonka.com>

Diffstat:
M
src-self-hosted/link/MachO.zig
 | 
5
++---

1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/src-self-hosted/link/MachO.zig b/src-self-hosted/link/MachO.zig
@@ -500,9 +500,8 @@ fn allocateTextBlock(self: *MachO, text_block: *TextBlock, new_block_size: u64, 
     const addr = blk: {
         if (self.last_text_block) |last| {
             const last_symbol = self.symbol_table.items[last.symbol_table_index.?];
-            const ideal_capacity = last.size * alloc_num / alloc_den;
-            const ideal_capacity_end_addr = last_symbol.n_value + ideal_capacity;
-            const new_start_addr = mem.alignForwardGeneric(u64, ideal_capacity_end_addr, alignment);
+            const end_addr = last_symbol.n_value + last.size;
+            const new_start_addr = mem.alignForwardGeneric(u64, end_addr, alignment);
             block_placement = last;
             break :blk new_start_addr;
         } else {