forked from Imagelibrary/binutils-gdb
bd389c9515
The new algorithm to look for a build-id-based debug file
(introduced by commit 22836ca885)
makes use of fileio_lstat. As lstat was not supported by
linux-namespace.c, all lstat calls would be performed on the host
and not inside the namespace. Fixed by adding namespace lstat
support.
Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=32956
Approved-By: Andrew Burgess <aburgess@redhat.com>
88 lines
2.7 KiB
C
88 lines
2.7 KiB
C
/* Linux namespaces(7) support.
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Copyright (C) 2015-2025 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef GDB_NAT_LINUX_NAMESPACES_H
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#define GDB_NAT_LINUX_NAMESPACES_H
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/* Set to true to enable debugging of Linux namespaces code. */
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extern bool debug_linux_namespaces;
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/* Print a "linux-namespaces" debug statement. */
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#define linux_namespaces_debug_printf(fmt, ...) \
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debug_prefixed_printf_cond (debug_linux_namespaces, "linux-namespaces", \
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fmt, ##__VA_ARGS__)
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/* Enumeration of Linux namespace types. */
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enum linux_ns_type
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{
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/* IPC namespace: System V IPC, POSIX message queues. */
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LINUX_NS_IPC,
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/* Mount namespace: mount points. */
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LINUX_NS_MNT,
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/* Network namespace: network devices, stacks, ports, etc. */
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LINUX_NS_NET,
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/* PID namespace: process IDs. */
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LINUX_NS_PID,
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/* User namespace: user and group IDs. */
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LINUX_NS_USER,
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/* UTS namespace: hostname and NIS domain name. */
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LINUX_NS_UTS,
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/* Number of Linux namespaces. */
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NUM_LINUX_NS_TYPES
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};
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/* Return nonzero if process PID has the same TYPE namespace as the
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calling process, or if the kernel does not support TYPE namespaces
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(in which case there is only one TYPE namespace). Return zero if
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the kernel supports TYPE namespaces and the two processes have
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different TYPE namespaces. */
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extern int linux_ns_same (pid_t pid, enum linux_ns_type type);
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/* Like lstat(2), but in the mount namespace of process PID. */
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extern int linux_mntns_lstat (pid_t pid, const char *filename,
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struct stat *sb);
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/* Like gdb_open_cloexec, but in the mount namespace of process
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PID. */
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extern int linux_mntns_open_cloexec (pid_t pid, const char *filename,
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int flags, mode_t mode);
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/* Like unlink(2), but in the mount namespace of process PID. */
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extern int linux_mntns_unlink (pid_t pid, const char *filename);
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/* Like readlink(2), but in the mount namespace of process PID. */
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extern ssize_t linux_mntns_readlink (pid_t pid, const char *filename,
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char *buf, size_t bufsiz);
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#endif /* GDB_NAT_LINUX_NAMESPACES_H */
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