v8/test/debugging/wasm/gdb-server/test_files/test_trap.py

# Copyright 2020 the V8 project authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

# 0x00 (module
# 0x08   [type]
# 0x0a   (type $type0 (func))
# 0x0e   (type $type1 (func (result i32)))
# 0x12   [function]
# 0x17   [memory]
# 0x19   (memory $memory0 32 128)
# 0x1e   [export]
# 0x20   (export "mem" (memory $memory0))
# 0x27   (export "main" (func $func1))
# 0x2e   [code]
# 0x30   (func $func0
# 0x33     i32.const 0
# 0x35     i32.const 42
# 0x37     i32.store offset=-1 align=1
# 0x3e   )
# 0x3f   (func $func1 (result i32)
# 0x41     call $func0
# 0x43     i32.const 0
# 0x45   )
# 0x46   ...
#      )

TRAP_ADDRESS = 0x0037
Wasm debugging with LLDB: access Wasm engine state This changelist makes the GDB-stub actually execute GDB-remote commands, by accessing the Wasm engine state. More precisely: - class GdbServer registers DebugDelegates that receive debug notifications when a new Wasm module is loaded, when execution suspends at a breakpoint or for an unhandled exception. - Since the GDB-remote commands arrive on a separate thread, all queries from the debugger are transformed into Task objects, that are posted into a TaskRunner that runs in the Isolate thread. - class WasmModuleDebug contains the logic to retrieve the value of globals, locals, memory ranges from the Wasm engine and to add/remove breakpoints. Build with: v8_enable_wasm_gdb_remote_debugging = true Run with: --wasm-gdb-remote Test with: python tools\run-tests.py --outdir=out\debug_x64 debugging -j 1 Bug: chromium:1010467 Change-Id: I9703894620a027d3c920926db92e2ff809d84ab8 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1941139 Reviewed-by: Benedikt Meurer <bmeurer@chromium.org> Reviewed-by: Clemens Backes <clemensb@chromium.org> Commit-Queue: Paolo Severini <paolosev@microsoft.com> Cr-Commit-Position: refs/heads/master@{#67412} 2020-04-24 22:41:16 +00:00			`# Copyright 2020 the V8 project authors. All rights reserved.`
			`# Use of this source code is governed by a BSD-style license that can be`
			`# found in the LICENSE file.`

			`# 0x00 (module`
			`# 0x08 [type]`
			`# 0x0a (type $type0 (func))`
			`# 0x0e (type $type1 (func (result i32)))`
			`# 0x12 [function]`
			`# 0x17 [memory]`
			`# 0x19 (memory $memory0 32 128)`
			`# 0x1e [export]`
			`# 0x20 (export "mem" (memory $memory0))`
			`# 0x27 (export "main" (func $func1))`
			`# 0x2e [code]`
			`# 0x30 (func $func0`
			`# 0x33 i32.const 0`
			`# 0x35 i32.const 42`
			`# 0x37 i32.store offset=-1 align=1`
			`# 0x3e )`
			`# 0x3f (func $func1 (result i32)`
			`# 0x41 call $func0`
			`# 0x43 i32.const 0`
			`# 0x45 )`
			`# 0x46 ...`
			`# )`

			`TRAP_ADDRESS = 0x0037`