[22/31] gdbserver/linux-low: turn 'process_qsupported' into a method

diff --git a/gdbserver/linux-aarch64-low.cc b/gdbserver/linux-aarch64-low.cc
index cece3fc6dca..e6b6c871846 100644
--- a/gdbserver/linux-aarch64-low.cc
+++ b/gdbserver/linux-aarch64-low.cc
@@ -3148,7 +3148,6 @@  aarch64_supports_hardware_single_step (void)
 
 struct linux_target_ops the_low_target =
 {
-  NULL, /* process_qsupported */
   aarch64_supports_tracepoints,
   aarch64_get_thread_area,
   aarch64_install_fast_tracepoint_jump_pad,
diff --git a/gdbserver/linux-arm-low.cc b/gdbserver/linux-arm-low.cc
index 83a7608c787..d2a7bf2eb9f 100644
--- a/gdbserver/linux-arm-low.cc
+++ b/gdbserver/linux-arm-low.cc
@@ -1119,7 +1119,6 @@  arm_target::get_regs_info ()
 }
 
 struct linux_target_ops the_low_target = {
-  NULL, /* process_qsupported */
   NULL, /* supports_tracepoints */
   NULL, /* get_thread_area */
   NULL, /* install_fast_tracepoint_jump_pad */
diff --git a/gdbserver/linux-bfin-low.cc b/gdbserver/linux-bfin-low.cc
index 82bae1d1e82..9483c31d5f4 100644
--- a/gdbserver/linux-bfin-low.cc
+++ b/gdbserver/linux-bfin-low.cc
@@ -165,7 +165,6 @@  bfin_target::get_regs_info ()
 }
 
 struct linux_target_ops the_low_target = {
-  NULL, /* process_qsupported */
   NULL, /* supports_tracepoints */
   NULL, /* get_thread_area */
   NULL, /* install_fast_tracepoint_jump_pad */
diff --git a/gdbserver/linux-crisv32-low.cc b/gdbserver/linux-crisv32-low.cc
index b85eac87698..3512178dd44 100644
--- a/gdbserver/linux-crisv32-low.cc
+++ b/gdbserver/linux-crisv32-low.cc
@@ -470,7 +470,6 @@  crisv32_target::get_regs_info ()
 }
 
 struct linux_target_ops the_low_target = {
-  NULL, /* process_qsupported */
   NULL, /* supports_tracepoints */
   NULL, /* get_thread_area */
   NULL, /* install_fast_tracepoint_jump_pad */
diff --git a/gdbserver/linux-low.cc b/gdbserver/linux-low.cc
index 41bb44a2010..99bcb25c6d0 100644
--- a/gdbserver/linux-low.cc
+++ b/gdbserver/linux-low.cc
@@ -6425,13 +6425,6 @@  linux_process_target::read_loadmap (const char *annex, CORE_ADDR offset,
 }
 #endif /* defined PT_GETDSBT || defined PTRACE_GETFDPIC */
 
-void
-linux_process_target::process_qsupported (char **features, int count)
-{
-  if (the_low_target.process_qsupported != NULL)
-    the_low_target.process_qsupported (features, count);
-}
-
 bool
 linux_process_target::supports_catch_syscall ()
 {
diff --git a/gdbserver/linux-low.h b/gdbserver/linux-low.h
index 0ccc8644c07..0b0a1573593 100644
--- a/gdbserver/linux-low.h
+++ b/gdbserver/linux-low.h
@@ -131,9 +131,6 @@  struct lwp_info;
 
 struct linux_target_ops
 {
-  /* Hook to support target specific qSupported.  */
-  void (*process_qsupported) (char **, int count);
-
   /* Returns true if the low target supports tracepoints.  */
   int (*supports_tracepoints) (void);
 
@@ -301,8 +298,6 @@  class linux_process_target : public process_stratum_target
 		    unsigned char *myaddr, unsigned int len) override;
 #endif
 
-  void process_qsupported (char **features, int count) override;
-
   bool supports_tracepoints () override;
 
   CORE_ADDR read_pc (regcache *regcache) override;
diff --git a/gdbserver/linux-m32r-low.cc b/gdbserver/linux-m32r-low.cc
index b82d5ab5132..25d971c1b90 100644
--- a/gdbserver/linux-m32r-low.cc
+++ b/gdbserver/linux-m32r-low.cc
@@ -163,7 +163,6 @@  m32r_target::get_regs_info ()
 }
 
 struct linux_target_ops the_low_target = {
-  NULL, /* process_qsupported */
   NULL, /* supports_tracepoints */
   NULL, /* get_thread_area */
   NULL, /* install_fast_tracepoint_jump_pad */
diff --git a/gdbserver/linux-m68k-low.cc b/gdbserver/linux-m68k-low.cc
index 051dd4554ed..12c7a4d06af 100644
--- a/gdbserver/linux-m68k-low.cc
+++ b/gdbserver/linux-m68k-low.cc
@@ -259,7 +259,6 @@  m68k_supports_hardware_single_step (void)
 }
 
 struct linux_target_ops the_low_target = {
-  NULL, /* process_qsupported */
   NULL, /* supports_tracepoints */
   NULL, /* get_thread_area */
   NULL, /* install_fast_tracepoint_jump_pad */
diff --git a/gdbserver/linux-ppc-low.cc b/gdbserver/linux-ppc-low.cc
index 0561ab366f6..ba5eac3f9fb 100644
--- a/gdbserver/linux-ppc-low.cc
+++ b/gdbserver/linux-ppc-low.cc
@@ -3430,7 +3430,6 @@  ppc_get_ipa_tdesc_idx (void)
 }
 
 struct linux_target_ops the_low_target = {
-  NULL, /* process_qsupported */
   ppc_supports_tracepoints,
   ppc_get_thread_area,
   ppc_install_fast_tracepoint_jump_pad,
diff --git a/gdbserver/linux-s390-low.cc b/gdbserver/linux-s390-low.cc
index 73b246e3134..8e0c5aae3f9 100644
--- a/gdbserver/linux-s390-low.cc
+++ b/gdbserver/linux-s390-low.cc
@@ -2839,7 +2839,6 @@  s390_emit_ops (void)
 }
 
 struct linux_target_ops the_low_target = {
-  NULL, /* process_qsupported */
   s390_supports_tracepoints,
   s390_get_thread_area,
   s390_install_fast_tracepoint_jump_pad,
diff --git a/gdbserver/linux-sh-low.cc b/gdbserver/linux-sh-low.cc
index 03549d1bf78..df25935fd44 100644
--- a/gdbserver/linux-sh-low.cc
+++ b/gdbserver/linux-sh-low.cc
@@ -194,7 +194,6 @@  sh_target::low_arch_setup ()
 }
 
 struct linux_target_ops the_low_target = {
-  NULL, /* process_qsupported */
   NULL, /* supports_tracepoints */
   NULL, /* get_thread_area */
   NULL, /* install_fast_tracepoint_jump_pad */
diff --git a/gdbserver/linux-tic6x-low.cc b/gdbserver/linux-tic6x-low.cc
index 62ff0da55b8..db6478a8025 100644
--- a/gdbserver/linux-tic6x-low.cc
+++ b/gdbserver/linux-tic6x-low.cc
@@ -425,7 +425,6 @@  tic6x_target::get_regs_info ()
 }
 
 struct linux_target_ops the_low_target = {
-  NULL, /* process_qsupported */
   NULL, /* supports_tracepoints */
   NULL, /* get_thread_area */
   NULL, /* install_fast_tracepoint_jump_pad */
diff --git a/gdbserver/linux-tile-low.cc b/gdbserver/linux-tile-low.cc
index 99423fda832..637da14d856 100644
--- a/gdbserver/linux-tile-low.cc
+++ b/gdbserver/linux-tile-low.cc
@@ -226,7 +226,6 @@  tile_supports_hardware_single_step (void)
 
 struct linux_target_ops the_low_target =
 {
-  NULL, /* process_qsupported */
   NULL, /* supports_tracepoints */
   NULL, /* get_thread_area */
   NULL, /* install_fast_tracepoint_jump_pad */
diff --git a/gdbserver/linux-x86-low.cc b/gdbserver/linux-x86-low.cc
index b5eff688609..93e0a1425ae 100644
--- a/gdbserver/linux-x86-low.cc
+++ b/gdbserver/linux-x86-low.cc
@@ -102,16 +102,14 @@  public:
 
   x86_target () : linux_process_target (1) { }
 
-  /* Update all the target description of all processes; a new GDB
-     connected, and it may or not support xml target descriptions.  */
-  void update_xmltarget ();
-
   const regs_info *get_regs_info () override;
 
   const gdb_byte *sw_breakpoint_from_kind (int kind, int *size) override;
 
   bool supports_z_point_type (char z_type) override;
 
+  void process_qsupported (char **features, int count) override;
+
 protected:
 
   void low_arch_setup () override;
@@ -157,6 +155,12 @@  protected:
   void low_new_fork (process_info *parent, process_info *child) override;
 
   void low_prepare_to_resume (lwp_info *lwp) override;
+
+private:
+
+  /* Update all the target description of all processes; a new GDB
+     connected, and it may or not support xml target descriptions.  */
+  void update_xmltarget ();
 };
 
 /* The singleton target ops object.  */
@@ -994,8 +998,8 @@  x86_target::update_xmltarget ()
 /* Process qSupported query, "xmlRegisters=".  Update the buffer size for
    PTRACE_GETREGSET.  */
 
-static void
-x86_linux_process_qsupported (char **features, int count)
+void
+x86_target::process_qsupported (char **features, int count)
 {
   int i;
 
@@ -1026,7 +1030,7 @@  x86_linux_process_qsupported (char **features, int count)
 	  free (copy);
 	}
     }
-  the_x86_target.update_xmltarget ();
+  update_xmltarget ();
 }
 
 /* Common for x86/x86-64.  */
@@ -2956,7 +2960,6 @@  x86_get_ipa_tdesc_idx (void)
 
 struct linux_target_ops the_low_target =
 {
-  x86_linux_process_qsupported,
   x86_supports_tracepoints,
   x86_get_thread_area,
   x86_install_fast_tracepoint_jump_pad,
diff --git a/gdbserver/linux-xtensa-low.cc b/gdbserver/linux-xtensa-low.cc
index 1c4db4cfaca..3e7211815f6 100644
--- a/gdbserver/linux-xtensa-low.cc
+++ b/gdbserver/linux-xtensa-low.cc
@@ -331,7 +331,6 @@  xtensa_target::get_regs_info ()
 }
 
 struct linux_target_ops the_low_target = {
-  NULL, /* process_qsupported */
   NULL, /* supports_tracepoints */
   NULL, /* get_thread_area */
   NULL, /* install_fast_tracepoint_jump_pad */