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Improved fault debugging with emscripten

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This commit is contained in:
Syrus 2019-04-27 12:53:13 -07:00
parent f2d9d22e94
commit a4170d4495
2 changed files with 21 additions and 0 deletions
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3
lib/emscripten/src/lib.rs
View File

@ -646,6 +646,9 @@ pub fn generate_emscripten_env(globals: &mut EmscriptenGlobals) -> ImportObject
"_emscripten_get_heap_size" => func!(crate::memory::_emscripten_get_heap_size),
"_emscripten_resize_heap" => func!(crate::memory::_emscripten_resize_heap),
"enlargeMemory" => func!(crate::memory::enlarge_memory),
"segfault" => func!(crate::memory::segfault),
"alignfault" => func!(crate::memory::alignfault),
"ftfault" => func!(crate::memory::ftfault),
"getTotalMemory" => func!(crate::memory::get_total_memory),
"___map_file" => func!(crate::memory::___map_file),

18
lib/emscripten/src/memory.rs
View File

@ -95,6 +95,24 @@ pub fn abort_on_cannot_grow_memory_old(ctx: &mut Ctx) -> u32 {
0
}
/// emscripten: segfault
pub fn segfault(ctx: &mut Ctx) {
debug!("emscripten::segfault");
abort_with_message(ctx, "segmentation fault");
}
/// emscripten: alignfault
pub fn alignfault(ctx: &mut Ctx) {
debug!("emscripten::alignfault");
abort_with_message(ctx, "alignment fault");
}
/// emscripten: ftfault
pub fn ftfault(ctx: &mut Ctx) {
debug!("emscripten::ftfault");
abort_with_message(ctx, "Function table mask error");
}
/// emscripten: ___map_file
pub fn ___map_file(_ctx: &mut Ctx, _one: u32, _two: u32) -> c_int {
debug!("emscripten::___map_file");