gdb: add target_ops::supports_displaced_step

[deliverable/binutils-gdb.git] / gdb / sparc-ravenscar-thread.c

diff --git a/gdb/sparc-ravenscar-thread.c b/gdb/sparc-ravenscar-thread.c
index 43a20690daef65a958e0cd5a24c78cf778c298eb..3455677ab65f3ead3845cf9d38e781af8b46194b 100644 (file)
--- a/gdb/sparc-ravenscar-thread.c
+++ b/gdb/sparc-ravenscar-thread.c
@@ -1,6 +1,6 @@
 /* Ravenscar SPARC target support.
 
-   Copyright (C) 2004-2013 Free Software Foundation, Inc.
+   Copyright (C) 2004-2020 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -24,12 +24,13 @@
 #include "inferior.h"
 #include "ravenscar-thread.h"
 #include "sparc-ravenscar-thread.h"
+#include "gdbarch.h"
 
-static void sparc_ravenscar_fetch_registers (struct regcache *regcache,
-                                             int regnum);
-static void sparc_ravenscar_store_registers (struct regcache *regcache,
-                                             int regnum);
-static void sparc_ravenscar_prepare_to_store (struct regcache *regcache);
+struct sparc_ravenscar_ops : public ravenscar_arch_ops
+{
+  void fetch_registers (struct regcache *, int) override;
+  void store_registers (struct regcache *, int) override;
+};
 
 /* Register offsets from a referenced address (exempli gratia the
    Thread_Descriptor).  The referenced address depends on the register
@@ -62,13 +63,13 @@ static void
 supply_register_at_address (struct regcache *regcache, int regnum,
                             CORE_ADDR register_addr)
 {
-  struct gdbarch *gdbarch = get_regcache_arch (regcache);
+  struct gdbarch *gdbarch = regcache->arch ();
   int buf_size = register_size (gdbarch, regnum);
-  char *buf;
+  gdb_byte *buf;
 
-  buf = (char *) alloca (buf_size);
+  buf = (gdb_byte *) alloca (buf_size);
   read_memory (register_addr, buf, buf_size);
-  regcache_raw_supply (regcache, regnum, buf);
+  regcache->raw_supply (regnum, buf);
 }
 
 /* Return true if, for a non-running thread, REGNUM has been saved on the
@@ -100,10 +101,10 @@ register_in_thread_descriptor_p (int regnum)
 /* to_fetch_registers when inferior_ptid is different from the running
    thread.  */
 
-static void
-sparc_ravenscar_fetch_registers (struct regcache *regcache, int regnum)
+void
+sparc_ravenscar_ops::fetch_registers (struct regcache *regcache, int regnum)
 {
-  struct gdbarch *gdbarch = get_regcache_arch (regcache);
+  struct gdbarch *gdbarch = regcache->arch ();
   const int sp_regnum = gdbarch_sp_regnum (gdbarch);
   const int num_regs = gdbarch_num_regs (gdbarch);
   int current_regnum;
@@ -112,7 +113,7 @@ sparc_ravenscar_fetch_registers (struct regcache *regcache, int regnum)
   ULONGEST stack_address;
 
   /* The tid is the thread_id field, which is a pointer to the thread.  */
-  thread_descriptor_address = (CORE_ADDR) ptid_get_tid (inferior_ptid);
+  thread_descriptor_address = (CORE_ADDR) inferior_ptid.tid ();
 
   /* Read the saved SP in the context buffer.  */
   current_address = thread_descriptor_address
@@ -140,29 +141,20 @@ sparc_ravenscar_fetch_registers (struct regcache *regcache, int regnum)
     }
 }
 
-/* to_prepare_to_store when inferior_ptid is different from the running
-   thread.  */
-
-static void
-sparc_ravenscar_prepare_to_store (struct regcache *regcache)
-{
-  /* Nothing to do.  */
-}
-
 /* to_store_registers when inferior_ptid is different from the running
    thread.  */
 
-static void
-sparc_ravenscar_store_registers (struct regcache *regcache, int regnum)
+void
+sparc_ravenscar_ops::store_registers (struct regcache *regcache, int regnum)
 {
-  struct gdbarch *gdbarch = get_regcache_arch (regcache);
+  struct gdbarch *gdbarch = regcache->arch ();
   int buf_size = register_size (gdbarch, regnum);
-  char buf [buf_size];
+  gdb_byte buf[buf_size];
   ULONGEST register_address;
 
   if (register_in_thread_descriptor_p (regnum))
     register_address =
-      ptid_get_tid (inferior_ptid) + sparc_register_offsets [regnum];
+      inferior_ptid.tid () + sparc_register_offsets [regnum];
   else if (register_on_stack_p (regnum))
     {
       regcache_cooked_read_unsigned (regcache, SPARC_SP_REGNUM,
@@ -172,18 +164,13 @@ sparc_ravenscar_store_registers (struct regcache *regcache, int regnum)
   else
     return;
 
-  regcache_raw_collect (regcache, regnum, buf);
+  regcache->raw_collect (regnum, buf);
   write_memory (register_address,
                 buf,
                 buf_size);
 }
 
-static struct ravenscar_arch_ops sparc_ravenscar_ops =
-{
-  sparc_ravenscar_fetch_registers,
-  sparc_ravenscar_store_registers,
-  sparc_ravenscar_prepare_to_store
-};
+static struct sparc_ravenscar_ops sparc_ravenscar_ops;
 
 /* Register ravenscar_arch_ops in GDBARCH.  */