linux_nat_target: More low methods

This converts the remaining linux-nat.c hooks low_ methods like had
been started in a previous patch.  The linux_nat_set_foo routines are
all gone with this.

gdb/ChangeLog:
2018-05-02  Pedro Alves  <palves@redhat.com>

	* linux-nat.h (linux_nat_target) <low_new_thread,
	low_delete_thread, low_new_fork, low_forget_process,
	low_prepare_to_resume, low_siginfo_fixup, low_status_is_event>:
	New virtual methods.
	(linux_nat_set_new_thread, linux_nat_set_delete_thread)
	(linux_nat_new_fork_ftype, linux_nat_set_new_fork)
	(linux_nat_forget_process_ftype, linux_nat_set_forget_process)
	(linux_nat_forget_process, linux_nat_set_siginfo_fixup)
	(linux_nat_set_prepare_to_resume, linux_nat_set_status_is_event):
	Delete.
	* linux-fork.c (delete_fork): Adjust to call low method.
	* linux-nat.c (linux_nat_new_thread, linux_nat_delete_thread)
	(linux_nat_new_fork, linux_nat_forget_process_hook)
	(linux_nat_prepare_to_resume, linux_nat_siginfo_fixup)
	(linux_nat_status_is_event):
	(linux_nat_target::follow_fork, lwp_free, add_lwp, detach_one_lwp)
	(linux_resume_one_lwp_throw, linux_handle_extended_wait): Adjust
	to call low method.
	(sigtrap_is_event): Rename to ...
	(linux_nat_target::low_status_is_event): ... this.
	(linux_nat_set_status_is_event): Delete.
	(save_stop_reason, linux_nat_wait_1)
	(linux_nat_target::mourn_inferior, siginfo_fixup): Adjust to call
	low methods.
	(linux_nat_set_new_thread, linux_nat_set_delete_thread)
	(linux_nat_set_new_fork, linux_nat_set_forget_process)
	(linux_nat_forget_process, linux_nat_set_siginfo_fixup)
	(linux_nat_set_prepare_to_resume): Delete.
	* aarch64-linux-nat.c: All linux_nat_set_* callbacks converted to
	low virtual methods.
	* amd64-linux-nat.c: Likewise.
	* arm-linux-nat.c: Likewise.
	* i386-linux-nat.c: Likewise.
	* ia64-linux-nat.c: Likewise.
	* mips-linux-nat.c: Likewise.
	* ppc-linux-nat.c: Likewise.
	* s390-linux-nat.c: Likewise.
	* sparc64-linux-nat.c: Likewise.
	* x86-linux-nat.c: Likewise.
	* x86-linux-nat.h: Include "nat/x86-linux.h".
	(x86_linux_nat_target) <low_new_fork, low_forget_process,
	low_prepare_to_resume, low_new_thread, low_delete_thread>:
	Override methods.

1 files changed, 15 insertions, 5 deletions

diff --git a/gdb/x86-linux-nat.h b/gdb/x86-linux-nat.h
index 7cbb271..9eac2a0 100644
--- a/gdb/x86-linux-nat.h
+++ b/gdb/x86-linux-nat.h
@@ -23,6 +23,7 @@
 #include "gdb_proc_service.h"  /* For ps_err_e.  */
 #include "linux-nat.h"
 #include "x86-nat.h"
+#include "nat/x86-linux.h"
 
 struct x86_linux_nat_target : public x86_nat_target<linux_nat_target>
 {
@@ -58,6 +59,20 @@ struct x86_linux_nat_target : public x86_nat_target<linux_nat_target>
 
   bool low_stopped_data_address (CORE_ADDR *addr_p) override
   { return x86_nat_target::stopped_data_address (addr_p); }
+
+  void low_new_fork (struct lwp_info *parent, pid_t child_pid) override;
+
+  void low_forget_process (pid_t pid) override
+  { x86_forget_process (pid); }
+
+  void low_prepare_to_resume (struct lwp_info *lwp) override
+  { x86_linux_prepare_to_resume (lwp); }
+
+  void low_new_thread (struct lwp_info *lwp) override
+  { x86_linux_new_thread (lwp); }
+
+  void low_delete_thread (struct arch_lwp_info *lwp) override
+  { x86_linux_delete_thread (lwp); }
 };
 
 
@@ -68,10 +83,5 @@ struct x86_linux_nat_target : public x86_nat_target<linux_nat_target>
 
 extern ps_err_e x86_linux_get_thread_area (pid_t pid, void *addr,
 					   unsigned int *base_addr);
-
-
-/* Add an x86 GNU/Linux target.  */
-
-extern void x86_linux_add_target (linux_nat_target *t);
 
 #endif