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From: "mark at klomp dot org" <sourceware-bugzilla@sourceware.org> To: gdb-prs@sourceware.org Subject: [Bug server/30453] gdbserver cannot set breakpoints when /proc/pid/mem is not writable Date: Fri, 16 Feb 2024 20:53:29 +0000 [thread overview] Message-ID: <bug-30453-4717-TMAka7Xskd@http.sourceware.org/bugzilla/> (raw) In-Reply-To: <bug-30453-4717@http.sourceware.org/bugzilla/> https://sourceware.org/bugzilla/show_bug.cgi?id=30453 Mark Wielaard <mark at klomp dot org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |mark at klomp dot org --- Comment #24 from Mark Wielaard <mark at klomp dot org> --- There are also the process_vm_readv and process_vm_writev syscalls. These system calls were added in Linux 3.2. Support is provided in glibc since version 2.15. Permission to read from or write to another process is governed by a ptrace access mode PTRACE_MODE_ATTACH_REALCREDS check. https://man7.org/linux/man-pages/man2/process_vm_readv.2.html So that is an alternative to directly reading /proc/pid/mem or using ptrace PEEK/POKE. In theory it should work if you can ptrace the process, so hopefully CrOS allows it. -- You are receiving this mail because: You are on the CC list for the bug.
next prev parent reply other threads:[~2024-02-16 20:53 UTC|newest] Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top 2023-05-16 16:00 [Bug server/30453] New: " manojgupta at google dot com 2023-05-16 16:02 ` [Bug server/30453] " manojgupta at google dot com 2023-05-16 18:17 ` pedro at palves dot net 2023-05-16 18:24 ` manojgupta at google dot com 2023-05-16 20:00 ` pedro at palves dot net 2023-05-16 20:13 ` manojgupta at google dot com 2023-05-17 19:03 ` manojgupta at google dot com 2023-05-18 11:50 ` pedro at palves dot net 2024-02-15 19:06 ` adrian.ratiu at collabora dot com 2024-02-15 19:07 ` adrian.ratiu at collabora dot com 2024-02-15 19:07 ` adrian.ratiu at collabora dot com 2024-02-15 19:13 ` adrian.ratiu at collabora dot com 2024-02-15 20:09 ` pedro at palves dot net 2024-02-15 20:18 ` pedro at palves dot net 2024-02-15 20:18 ` pedro at palves dot net 2024-02-16 2:54 ` tromey at sourceware dot org 2024-02-16 5:29 ` adrian.ratiu at collabora dot com 2024-02-16 5:40 ` adrian.ratiu at collabora dot com 2024-02-16 9:47 ` adrian.ratiu at collabora dot com 2024-02-16 17:33 ` tromey at sourceware dot org 2024-02-16 17:53 ` pedro at palves dot net 2024-02-16 17:56 ` pedro at palves dot net 2024-02-16 18:10 ` adrian.ratiu at collabora dot com 2024-02-16 18:17 ` pedro at palves dot net 2024-02-16 20:53 ` mark at klomp dot org [this message] 2024-02-16 21:36 ` pedro at palves dot net 2024-02-16 21:38 ` pedro at palves dot net 2024-02-16 21:57 ` tromey at sourceware dot org 2024-02-22 13:28 ` adrian.ratiu at collabora dot com 2024-02-23 17:01 ` cvs-commit at gcc dot gnu.org
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