[Apologies to people in To: and Cc:, who will get this the second time - I forgot to Cc: the mailing list initially.]
Hi, this series partially implements the Host I/O feature of the GDB Remote Serial Protocol in order to make generate-core-file work with qemu-user. It borrows heavily from the abandoned patch by Dominik [1], hence 4/6 carries the respective Co-developed-by: tag. I hope that's okay. I also peeked at gdbserver/hostio.cc quite a few times. The changes compared to Dominik's patch are: - Implement readlink. - Move the main functionality to user-target.c. - Allocate buffers on heap. - Add a test. - Update gdb.rst. - Split refactorings to the existing code into separate patches. - Rename do_openat() to do_guest_openat(). - Do not retry pread(), since GDB is capable of doing it itself. - Add an extra sanity check to gdb_handle_query_xfer_exec_file(). - Replace citations of the spec by a single link. Best regards, Ilya [1] https://lore.kernel.org/all/20220221030910.3203063-1-dominik.b.czarn...@gmail.com/ Ilya Leoshkevich (6): linux-user: Expose do_guest_openat() and do_guest_readlink() gdbstub: Expose gdb_get_process() and gdb_get_first_cpu_in_process() gdbstub: Report the actual qemu-user pid gdbstub: Add support for info proc mappings docs: Document security implications of debugging tests/tcg: Add a test for info proc mappings docs/system/gdb.rst | 15 ++ gdbstub/gdbstub.c | 86 ++++++++--- gdbstub/internals.h | 7 + gdbstub/user-target.c | 139 ++++++++++++++++++ linux-user/qemu.h | 3 + linux-user/syscall.c | 54 ++++--- tests/tcg/aarch64/Makefile.target | 3 +- tests/tcg/multiarch/Makefile.target | 7 + .../multiarch/gdbstub/test-proc-mappings.py | 55 +++++++ tests/tcg/s390x/Makefile.target | 2 +- 10 files changed, 332 insertions(+), 39 deletions(-) create mode 100644 tests/tcg/multiarch/gdbstub/test-proc-mappings.py -- 2.40.1
