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[PATCH RESEND 0/6] gdbstub: Add support for info proc mappings
From: |
Ilya Leoshkevich |
Subject: |
[PATCH RESEND 0/6] gdbstub: Add support for info proc mappings |
Date: |
Wed, 10 May 2023 22:26:48 +0200 |
[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.czarnota@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
- [PATCH RESEND 0/6] gdbstub: Add support for info proc mappings,
Ilya Leoshkevich <=
- [PATCH RESEND 2/6] gdbstub: Expose gdb_get_process() and gdb_get_first_cpu_in_process(), Ilya Leoshkevich, 2023/05/10
- [PATCH RESEND 1/6] linux-user: Expose do_guest_openat() and do_guest_readlink(), Ilya Leoshkevich, 2023/05/10
- [PATCH RESEND 5/6] docs: Document security implications of debugging, Ilya Leoshkevich, 2023/05/10
- [PATCH RESEND 6/6] tests/tcg: Add a test for info proc mappings, Ilya Leoshkevich, 2023/05/10
- [PATCH RESEND 4/6] gdbstub: Add support for info proc mappings, Ilya Leoshkevich, 2023/05/10
- [PATCH RESEND 3/6] gdbstub: Report the actual qemu-user pid, Ilya Leoshkevich, 2023/05/10