Hejsil
commented
2 years ago Hmm. Seems to be a double free, but I'm unsure if I've made a mistake or Nuklear is doing the double free:
alloc: anyopaque@8a0c88 <---
alloc: anyopaque@8a1c98
alloc: anyopaque@8b1ab8
alloc: anyopaque@8b2ac8
alloc: anyopaque@8b3ad8
alloc: anyopaque@8b6af8
free: u8@8a0c88 <---
alloc: anyopaque@8b8b08
free: u8@8b6af8
alloc: anyopaque@8bcb18
free: u8@8b8b08
alloc: anyopaque@8b6af8
free: u8@8b1ab8
alloc: anyopaque@8b8b08
free: u8@8b6af8
alloc: anyopaque@8b6af8
free: u8@8b2ac8
alloc: anyopaque@8c4b28
free: u8@8b8b08
alloc: anyopaque@8b8b08
free: u8@8b6af8
alloc: anyopaque@8ccb38
free: u8@8c4b28
alloc: anyopaque@8c4b28
free: u8@8b8b08
free: u8@8a1c98
free: u8@8ccb38
free: u8@8c4b28
free: u8@8a0c88 <---
sukoi26
when i close the example, i received this error :
~/dvp/zig-nuklear$ zig-out/bin/examples Segmentation fault at address 0x9f2000 ???:?:?: 0x7f29767be033 in ??? (???) zig-nuklear/nuklear.zig:613:16: 0x22f578 in .nuklear.heap.free (examples) al.free(old_with_header[0 .. header_size + header.size]); ^ src/c/nuklear/nuklear.h:8304:5: 0x27518c in nk_buffer_free (zig-nuklear/src/c/nuklear.c) b->pool.free(b->pool.userdata, b->memory.ptr); ^ src/c/nuklear/nuklear.h:18721:5: 0x297d91 in nk_free (zig-nuklear/src/c/nuklear.c) nk_buffer_free(&ctx->memory); ^ zig-nuklear/nuklear.zig:456:14: 0x21c3c4 in .nuklear.free (examples) c.nk_free(ctx); ^ zig-nuklear/examples/main.zig:43:18: 0x2192c7 in main (examples) defer nk.free(&ctx); ^ zig/lib/std/start.zig:574:37: 0x230467 in std.start.callMain (examples) const result = root.main() catch |err| { ^ zig/lib/std/start.zig:508:12: 0x21c7d7 in std.start.callMainWithArgs (examples) return @call(.{ .modifier = .always_inline }, callMain, .{}); ^ zig/lib/std/start.zig:473:12: 0x21c582 in std.start.main (examples) return @call(.{ .modifier = .always_inline }, callMainWithArgs, .{ @intCast(usize, c_argc), c_argv, envp }); ^ ???:?:?: 0x7f297673d7fc in ??? (???) Abandon
if i comment the line 43 of main.zig // defer nk.free(&ctx); no message , no segfault