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fix replaceVecSectionHeader

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This commit is contained in:
Andrew Kelley 2024-12-15 20:35:07 -08:00
parent d6b42e585b
commit 0555fe8d5b
1 changed files with 4 additions and 9 deletions
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13
src/link/Wasm/Flush.zig
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@ -1038,7 +1038,7 @@ fn replaceVecSectionHeader(
section: std.wasm.Section,
n_items: u32,
) void {
const size: u32 = @intCast(bytes.items.len - offset - section_header_size);
const size: u32 = @intCast(bytes.items.len - offset - section_header_reserve_size + uleb128size(n_items));
var buf: [section_header_reserve_size]u8 = undefined;
var fbw = std.io.fixedBufferStream(&buf);
const w = fbw.writer();
@ -1395,14 +1395,9 @@ fn emitSegmentInfo(wasm: *Wasm, binary_bytes: *std.ArrayList(u8)) !void {
// }
//}
fn getUleb128Size(uint_value: anytype) u32 {
const T = @TypeOf(uint_value);
const U = if (@typeInfo(T).int.bits < 8) u8 else T;
var value = @as(U, @intCast(uint_value));
fn uleb128size(x: u32) u32 {
var value = x;
var size: u32 = 0;
while (value != 0) : (size += 1) {
value >>= 7;
}
while (value != 0) : (size += 1) value >>= 7;
return size;
}