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Iglesias" , Eduardo Habkost , Daniel Henrique Barboza , Michael Rolnik , Daniel Henrique Barboza , =?UTF-8?q?Alex=20Benn=C3=A9e?= , Laurent Vivier , Yoshinori Sato , Laurent Vivier , Thomas Huth , Peter Maydell , Mahmoud Mandour , Brad Smith , Alistair Francis , Brian Cain , Cleber Rosa , John Snow , Marcel Apfelbaum , Pierrick Bouvier , Palmer Dabbelt , Riku Voipio , qemu-arm@nongnu.org, qemu-ppc@nongnu.org, Weiwei Li , Bin Meng , =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , Beraldo Leal , Kyle Evans , David Hildenbrand , Song Gao , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Paolo Bonzini , Alexandre Iooss , Warner Losh , qemu-riscv@nongnu.org, Ilya Leoshkevich Subject: [PATCH 11/29] gdbstub: Introduce gdb_handle_detach_user() Date: Tue, 5 Mar 2024 12:09:47 +0000 Message-Id: <20240305121005.3528075-12-alex.bennee@linaro.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240305121005.3528075-1-alex.bennee@linaro.org> References: <20240305121005.3528075-1-alex.bennee@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::336; envelope-from=alex.bennee@linaro.org; helo=mail-wm1-x336.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01, T_SPF_HELO_TEMPERROR=0.01 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1709640946830100003 From: Ilya Leoshkevich The upcoming follow-fork-mode child support needs to perform certain actions when GDB detaches from the stopped parent or the stopped child. Introduce a user-specific hook for this. Signed-off-by: Ilya Leoshkevich Message-Id: <20240219141628.246823-11-iii@linux.ibm.com> Signed-off-by: Alex Benn=C3=A9e --- gdbstub/internals.h | 1 + gdbstub/gdbstub.c | 6 ++++++ gdbstub/user.c | 5 +++++ 3 files changed, 12 insertions(+) diff --git a/gdbstub/internals.h b/gdbstub/internals.h index b4905c7181a..b4724598384 100644 --- a/gdbstub/internals.h +++ b/gdbstub/internals.h @@ -198,6 +198,7 @@ void gdb_handle_query_xfer_exec_file(GArray *params, vo= id *user_ctx); /* user */ void gdb_handle_set_catch_syscalls(GArray *params, void *user_ctx); /* use= r */ void gdb_handle_query_supported_user(const char *gdb_supported); /* user */ bool gdb_handle_set_thread_user(uint32_t pid, uint32_t tid); /* user */ +bool gdb_handle_detach_user(uint32_t pid); /* user */ =20 void gdb_handle_query_attached(GArray *params, void *user_ctx); /* both */ =20 diff --git a/gdbstub/gdbstub.c b/gdbstub/gdbstub.c index 3eb93162aa8..17efcae0d0e 100644 --- a/gdbstub/gdbstub.c +++ b/gdbstub/gdbstub.c @@ -1024,6 +1024,12 @@ static void handle_detach(GArray *params, void *user= _ctx) pid =3D get_param(params, 0)->val_ul; } =20 +#ifdef CONFIG_USER_ONLY + if (gdb_handle_detach_user(pid)) { + return; + } +#endif + process =3D gdb_get_process(pid); gdb_process_breakpoint_remove_all(process); process->attached =3D false; diff --git a/gdbstub/user.c b/gdbstub/user.c index b048754c4f8..1a7b582a40d 100644 --- a/gdbstub/user.c +++ b/gdbstub/user.c @@ -391,6 +391,11 @@ bool gdb_handle_set_thread_user(uint32_t pid, uint32_t= tid) return false; } =20 +bool gdb_handle_detach_user(uint32_t pid) +{ + return false; +} + /* * Execution state helpers */ --=20 2.39.2