Don't include sys/personality.h in linux-low.cc anymore

[deliverable/binutils-gdb.git] / gdb / nat / linux-nat.h

diff --git a/gdb/nat/linux-nat.h b/gdb/nat/linux-nat.h
index 4d84aa555a503060acfc2607b0e4a46b7f8fe8f7..fe74a65f104e29802292261ebed82d4cc5915649 100644 (file)
--- a/gdb/nat/linux-nat.h
+++ b/gdb/nat/linux-nat.h
@@ -1,6 +1,6 @@
 /* Code for native debugging support for GNU/Linux (LWP layer).
 
-   Copyright (C) 2000-2013 Free Software Foundation, Inc.
+   Copyright (C) 2000-2021 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -17,12 +17,78 @@
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
-#ifndef LINUX_NAT_H
-#define LINUX_NAT_H
+#ifndef NAT_LINUX_NAT_H
+#define NAT_LINUX_NAT_H
+
+#include "gdbsupport/function-view.h"
+#include "target/waitstatus.h"
+
+struct lwp_info;
+struct arch_lwp_info;
+
+/* This is the kernel's hard limit.  Not to be confused with SIGRTMIN.  */
+#ifndef __SIGRTMIN
+#define __SIGRTMIN 32
+#endif
 
 /* Unlike other extended result codes, WSTOPSIG (status) on
    PTRACE_O_TRACESYSGOOD syscall events doesn't return SIGTRAP, but
    instead SIGTRAP with bit 7 set.  */
 #define SYSCALL_SIGTRAP (SIGTRAP | 0x80)
 
-#endif /* LINUX_NAT_H */
+/* Return the ptid of the current lightweight process.  With NPTL
+   threads and LWPs map 1:1, so this is equivalent to returning the
+   ptid of the current thread.  This function must be provided by
+   the client. */
+
+extern ptid_t current_lwp_ptid (void);
+
+/* Function type for the CALLBACK argument of iterate_over_lwps.  */
+typedef int (iterate_over_lwps_ftype) (struct lwp_info *lwp);
+
+/* Iterate over all LWPs.  Calls CALLBACK with its second argument set
+   to DATA for every LWP in the list.  If CALLBACK returns nonzero for
+   a particular LWP, return a pointer to the structure describing that
+   LWP immediately.  Otherwise return NULL.  This function must be
+   provided by the client.  */
+
+extern struct lwp_info *iterate_over_lwps
+    (ptid_t filter,
+     gdb::function_view<iterate_over_lwps_ftype> callback);
+
+/* Return the ptid of LWP.  */
+
+extern ptid_t ptid_of_lwp (struct lwp_info *lwp);
+
+/* Set the architecture-specific data of LWP.  This function must be
+   provided by the client. */
+
+extern void lwp_set_arch_private_info (struct lwp_info *lwp,
+                                      struct arch_lwp_info *info);
+
+/* Return the architecture-specific data of LWP.  This function must
+   be provided by the client. */
+
+extern struct arch_lwp_info *lwp_arch_private_info (struct lwp_info *lwp);
+
+/* Return nonzero if LWP is stopped, zero otherwise.  This function
+   must be provided by the client.  */
+
+extern int lwp_is_stopped (struct lwp_info *lwp);
+
+/* Return the reason the LWP last stopped.  This function must be
+   provided by the client.  */
+
+extern enum target_stop_reason lwp_stop_reason (struct lwp_info *lwp);
+
+/* Cause LWP to stop.  This function must be provided by the
+   client.  */
+
+extern void linux_stop_lwp (struct lwp_info *lwp);
+
+/* Return nonzero if we are single-stepping this LWP at the ptrace
+   level.  */
+
+extern int lwp_is_stepping (struct lwp_info *lwp);
+
+#endif /* NAT_LINUX_NAT_H */