- 28 Apr, 2020 1 commit
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Paolo Severini authored
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/+/1941139Reviewed-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}
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- 17 Apr, 2020 2 commits
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Paolo Severini authored
This changelist adds to the GDB stub (in class wasm::gdb_server::Target) the logic to decode and execute GDB-remote commands and to format response packets to be sent back to the debugger. Here most of the commands still act as a NOOP; the actual implementation requires interactions with the Wasm engine and will be implemented in the next CL of this series. Build with: v8_enable_wasm_gdb_remote_debugging = true Run with: --wasm-gdb-remote Bug: chromium:1010467 Change-Id: Icfa63be9e1eaa657c05876d0d4e86927e0885b90 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1938466 Commit-Queue: Paolo Severini <paolosev@microsoft.com> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org> Reviewed-by: Clemens Backes <clemensb@chromium.org> Cr-Commit-Position: refs/heads/master@{#67200}
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Paolo Severini authored
This changelist adds the logic to format, decode, sends and receive packets in the format specified by the GDB-remote protocol (https://sourceware.org/gdb/onlinedocs/gdb/Overview.html#Overview). Build with: v8_enable_wasm_gdb_remote_debugging = true Run with: --wasm-gdb-remote Bug: chromium:1010467 Change-Id: Ibc9c6713c561d06847b472fab591c208c193199f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1929409 Commit-Queue: Paolo Severini <paolosev@microsoft.com> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org> Reviewed-by: Clemens Backes <clemensb@chromium.org> Cr-Commit-Position: refs/heads/master@{#67196}
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