x86/Intel: adjust representation of embedded rounding / SAE

[binutils-gdb.git] / gdb / sparc64-sol2-tdep.c

diff --git a/gdb/sparc64-sol2-tdep.c b/gdb/sparc64-sol2-tdep.c
index c8be8f5c1641d35f21a31000289c6f4931e9694a..458f032058273b99929c0eb056028efaba431099 100644 (file)
--- a/gdb/sparc64-sol2-tdep.c
+++ b/gdb/sparc64-sol2-tdep.c
@@ -1,12 +1,12 @@
 /* Target-dependent code for Solaris UltraSPARC.
 
 /* Target-dependent code for Solaris UltraSPARC.
 

-   Copyright (C) 2003, 2004 Free Software Foundation, Inc.
+   Copyright (C) 2003-2022 Free Software Foundation, Inc.

 
    This file is part of GDB.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
 
    This file is part of GDB.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

-   the Free Software Foundation; either version 2 of the License, or
+   the Free Software Foundation; either version 3 of the License, or

    (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,


@@ -15,9 +15,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License

-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 51 Franklin Street, Fifth Floor,
-   Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

 
 #include "defs.h"
 #include "frame.h"
 
 #include "defs.h"
 #include "frame.h"


@@ -27,14 +25,14 @@
 #include "objfiles.h"
 #include "osabi.h"
 #include "trad-frame.h"
 #include "objfiles.h"
 #include "osabi.h"
 #include "trad-frame.h"

+#include "regset.h"

 
 

-#include "gdb_assert.h"
-
+#include "sol2-tdep.h"

 #include "sparc64-tdep.h"
 #include "solib-svr4.h"
 
 /* From <sys/regset.h>.  */
 #include "sparc64-tdep.h"
 #include "solib-svr4.h"
 
 /* From <sys/regset.h>.  */

-const struct sparc_gregset sparc64_sol2_gregset =
+const struct sparc_gregmap sparc64_sol2_gregmap =

 {
   32 * 8,                      /* "tstate" */
   33 * 8,                      /* %pc */
 {
   32 * 8,                      /* "tstate" */
   33 * 8,                      /* %pc */


@@ -46,10 +44,62 @@ const struct sparc_gregset sparc64_sol2_gregset =
   16 * 8,                      /* %l0 */
   8                            /* sizeof (%y) */
 };
   16 * 8,                      /* %l0 */
   8                            /* sizeof (%y) */
 };

+
+const struct sparc_fpregmap sparc64_sol2_fpregmap =
+{
+  0 * 8,                       /* %f0 */
+  33 * 8,                      /* %fsr */
+};
+
+static void
+sparc64_sol2_supply_core_gregset (const struct regset *regset,
+                                 struct regcache *regcache,
+                                 int regnum, const void *gregs, size_t len)
+{
+  sparc64_supply_gregset (&sparc64_sol2_gregmap, regcache, regnum, gregs);
+}
+
+static void
+sparc64_sol2_collect_core_gregset (const struct regset *regset,
+                                  const struct regcache *regcache,
+                                  int regnum, void *gregs, size_t len)
+{
+  sparc64_collect_gregset (&sparc64_sol2_gregmap, regcache, regnum, gregs);
+}
+
+static void
+sparc64_sol2_supply_core_fpregset (const struct regset *regset,
+                                  struct regcache *regcache,
+                                  int regnum, const void *fpregs, size_t len)
+{
+  sparc64_supply_fpregset (&sparc64_sol2_fpregmap, regcache, regnum, fpregs);
+}
+
+static void
+sparc64_sol2_collect_core_fpregset (const struct regset *regset,
+                                   const struct regcache *regcache,
+                                   int regnum, void *fpregs, size_t len)
+{
+  sparc64_collect_fpregset (&sparc64_sol2_fpregmap, regcache, regnum, fpregs);
+}
+
+static const struct regset sparc64_sol2_gregset =
+  {
+    NULL,
+    sparc64_sol2_supply_core_gregset,
+    sparc64_sol2_collect_core_gregset
+  };
+
+static const struct regset sparc64_sol2_fpregset =
+  {
+    NULL,
+    sparc64_sol2_supply_core_fpregset,
+    sparc64_sol2_collect_core_fpregset
+  };

 \f
 
 static struct sparc_frame_cache *
 \f
 
 static struct sparc_frame_cache *

-sparc64_sol2_sigtramp_frame_cache (struct frame_info *next_frame,
+sparc64_sol2_sigtramp_frame_cache (struct frame_info *this_frame,

                                   void **this_cache)
 {
   struct sparc_frame_cache *cache;
                                   void **this_cache)
 {
   struct sparc_frame_cache *cache;


@@ -57,107 +107,112 @@ sparc64_sol2_sigtramp_frame_cache (struct frame_info *next_frame,
   int regnum;
 
   if (*this_cache)
   int regnum;
 
   if (*this_cache)

-    return *this_cache;
+    return (struct sparc_frame_cache *) *this_cache;

 
 

-  cache = sparc_frame_cache (next_frame, this_cache);
+  cache = sparc_frame_cache (this_frame, this_cache);

   gdb_assert (cache == *this_cache);
 
   gdb_assert (cache == *this_cache);
 

-  cache->saved_regs = trad_frame_alloc_saved_regs (next_frame);
+  cache->saved_regs = trad_frame_alloc_saved_regs (this_frame);

 
   /* The third argument is a pointer to an instance of `ucontext_t',
      which has a member `uc_mcontext' that contains the saved
      registers.  */
 
   /* The third argument is a pointer to an instance of `ucontext_t',
      which has a member `uc_mcontext' that contains the saved
      registers.  */

-  regnum = (cache->frameless_p ? SPARC_O2_REGNUM : SPARC_I2_REGNUM);
-  mcontext_addr = frame_unwind_register_unsigned (next_frame, regnum) + 64;
+  regnum =
+    (cache->copied_regs_mask & 0x04) ? SPARC_I2_REGNUM : SPARC_O2_REGNUM;
+  mcontext_addr = get_frame_register_unsigned (this_frame, regnum) + 64;

 
 

-  cache->saved_regs[SPARC64_CCR_REGNUM].addr = mcontext_addr + 0 * 8;
-  cache->saved_regs[SPARC64_PC_REGNUM].addr = mcontext_addr + 1 * 8;
-  cache->saved_regs[SPARC64_NPC_REGNUM].addr = mcontext_addr + 2 * 8;
-  cache->saved_regs[SPARC64_Y_REGNUM].addr = mcontext_addr + 3 * 8;
-  cache->saved_regs[SPARC64_ASI_REGNUM].addr = mcontext_addr + 19 * 8; 
-  cache->saved_regs[SPARC64_FPRS_REGNUM].addr = mcontext_addr + 20 * 8;
+  cache->saved_regs[SPARC64_CCR_REGNUM].set_addr (mcontext_addr + 0 * 8);
+  cache->saved_regs[SPARC64_PC_REGNUM].set_addr (mcontext_addr + 1 * 8);
+  cache->saved_regs[SPARC64_NPC_REGNUM].set_addr (mcontext_addr + 2 * 8);
+  cache->saved_regs[SPARC64_Y_REGNUM].set_addr (mcontext_addr + 3 * 8);
+  cache->saved_regs[SPARC64_ASI_REGNUM].set_addr (mcontext_addr + 19 * 8);
+  cache->saved_regs[SPARC64_FPRS_REGNUM].set_addr (mcontext_addr + 20 * 8);

 
   /* Since %g0 is always zero, keep the identity encoding.  */
   for (regnum = SPARC_G1_REGNUM, addr = mcontext_addr + 4 * 8;
        regnum <= SPARC_O7_REGNUM; regnum++, addr += 8)
 
   /* Since %g0 is always zero, keep the identity encoding.  */
   for (regnum = SPARC_G1_REGNUM, addr = mcontext_addr + 4 * 8;
        regnum <= SPARC_O7_REGNUM; regnum++, addr += 8)

-    cache->saved_regs[regnum].addr = addr;
+    cache->saved_regs[regnum].set_addr (addr);

 
 

-  if (get_frame_memory_unsigned (next_frame, mcontext_addr + 21 * 8, 8))
+  if (get_frame_memory_unsigned (this_frame, mcontext_addr + 21 * 8, 8))

     {
       /* The register windows haven't been flushed.  */
       for (regnum = SPARC_L0_REGNUM; regnum <= SPARC_I7_REGNUM; regnum++)
     {
       /* The register windows haven't been flushed.  */
       for (regnum = SPARC_L0_REGNUM; regnum <= SPARC_I7_REGNUM; regnum++)

-       trad_frame_set_unknown (cache->saved_regs, regnum);
+       cache->saved_regs[regnum].set_unknown ();

     }
   else
     {
       CORE_ADDR sp;
 
     }
   else
     {
       CORE_ADDR sp;
 

-      addr = cache->saved_regs[SPARC_SP_REGNUM].addr;
-      sp = get_frame_memory_unsigned (next_frame, addr, 8);
+      addr = cache->saved_regs[SPARC_SP_REGNUM].addr ();
+      sp = get_frame_memory_unsigned (this_frame, addr, 8);

       for (regnum = SPARC_L0_REGNUM, addr = sp + BIAS;
           regnum <= SPARC_I7_REGNUM; regnum++, addr += 8)
       for (regnum = SPARC_L0_REGNUM, addr = sp + BIAS;
           regnum <= SPARC_I7_REGNUM; regnum++, addr += 8)

-       cache->saved_regs[regnum].addr = addr;
+       cache->saved_regs[regnum].set_addr (addr);

     }
 
   return cache;
 }
 
 static void
     }
 
   return cache;
 }
 
 static void

-sparc64_sol2_sigtramp_frame_this_id (struct frame_info *next_frame,
+sparc64_sol2_sigtramp_frame_this_id (struct frame_info *this_frame,

                                     void **this_cache,
                                     struct frame_id *this_id)
 {
   struct sparc_frame_cache *cache =
                                     void **this_cache,
                                     struct frame_id *this_id)
 {
   struct sparc_frame_cache *cache =

-    sparc64_sol2_sigtramp_frame_cache (next_frame, this_cache);
+    sparc64_sol2_sigtramp_frame_cache (this_frame, this_cache);

 
   (*this_id) = frame_id_build (cache->base, cache->pc);
 }
 
 
   (*this_id) = frame_id_build (cache->base, cache->pc);
 }
 

-static void
-sparc64_sol2_sigtramp_frame_prev_register (struct frame_info *next_frame,
+static struct value *
+sparc64_sol2_sigtramp_frame_prev_register (struct frame_info *this_frame,

                                           void **this_cache,
                                           void **this_cache,

-                                          int regnum, int *optimizedp,
-                                          enum lval_type *lvalp,
-                                          CORE_ADDR *addrp,
-                                          int *realnump, gdb_byte *valuep)
+                                          int regnum)

 {
   struct sparc_frame_cache *cache =
 {
   struct sparc_frame_cache *cache =

-    sparc64_sol2_sigtramp_frame_cache (next_frame, this_cache);
+    sparc64_sol2_sigtramp_frame_cache (this_frame, this_cache);

 
 

-  trad_frame_get_prev_register (next_frame, cache->saved_regs, regnum,
-                               optimizedp, lvalp, addrp, realnump, valuep);
+  return trad_frame_get_prev_register (this_frame, cache->saved_regs, regnum);
+}
+
+static int
+sparc64_sol2_sigtramp_frame_sniffer (const struct frame_unwind *self,
+                                    struct frame_info *this_frame,
+                                    void **this_cache)
+{
+  return sol2_sigtramp_p (this_frame);

 }
 
 static const struct frame_unwind sparc64_sol2_sigtramp_frame_unwind =
 {
 }
 
 static const struct frame_unwind sparc64_sol2_sigtramp_frame_unwind =
 {

+  "sparc64 solaris sigtramp",

   SIGTRAMP_FRAME,
   SIGTRAMP_FRAME,

+  default_frame_unwind_stop_reason,

   sparc64_sol2_sigtramp_frame_this_id,
   sparc64_sol2_sigtramp_frame_this_id,

-  sparc64_sol2_sigtramp_frame_prev_register
+  sparc64_sol2_sigtramp_frame_prev_register,
+  NULL,
+  sparc64_sol2_sigtramp_frame_sniffer

 };
 
 };
 

-static const struct frame_unwind *
-sparc64_sol2_sigtramp_frame_sniffer (struct frame_info *next_frame)
-{
-  CORE_ADDR pc = frame_pc_unwind (next_frame);
-  char *name;
-
-  find_pc_partial_function (pc, &name, NULL, NULL);
-  if (sparc_sol2_pc_in_sigtramp (pc, name))
-    return &sparc64_sol2_sigtramp_frame_unwind;
-
-  return NULL;
-}

 \f
 
 \f
 

-void
+static void

 sparc64_sol2_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
 {
 sparc64_sol2_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
 {

-  struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+  sparc_gdbarch_tdep *tdep = (sparc_gdbarch_tdep *) gdbarch_tdep (gdbarch);
+
+  tdep->gregset = &sparc64_sol2_gregset;
+  tdep->sizeof_gregset = 304;

 
 

-  frame_unwind_append_sniffer (gdbarch, sparc64_sol2_sigtramp_frame_sniffer);
+  tdep->fpregset = &sparc64_sol2_fpregset;
+  tdep->sizeof_fpregset = 544;
+
+  frame_unwind_append_unwinder (gdbarch, &sparc64_sol2_sigtramp_frame_unwind);

 
   sparc64_init_abi (info, gdbarch);
 
 
   sparc64_init_abi (info, gdbarch);
 

+  sol2_init_abi (info, gdbarch);
+

   /* Solaris has SVR4-style shared libraries...  */
   set_gdbarch_skip_trampoline_code (gdbarch, find_solib_trampoline_target);
   set_solib_svr4_fetch_link_map_offsets
   /* Solaris has SVR4-style shared libraries...  */
   set_gdbarch_skip_trampoline_code (gdbarch, find_solib_trampoline_target);
   set_solib_svr4_fetch_link_map_offsets


@@ -170,13 +225,10 @@ sparc64_sol2_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
   /* Solaris has kernel-assisted single-stepping support.  */
   set_gdbarch_software_single_step (gdbarch, NULL);
 }
   /* Solaris has kernel-assisted single-stepping support.  */
   set_gdbarch_software_single_step (gdbarch, NULL);
 }

-\f
-
-/* Provide a prototype to silence -Wmissing-prototypes.  */
-void _initialize_sparc64_sol2_tdep (void);

 
 

+void _initialize_sparc64_sol2_tdep ();

 void
 void

-_initialize_sparc64_sol2_tdep (void)
+_initialize_sparc64_sol2_tdep ()

 {
   gdbarch_register_osabi (bfd_arch_sparc, bfd_mach_sparc_v9,
                          GDB_OSABI_SOLARIS, sparc64_sol2_init_abi);
 {
   gdbarch_register_osabi (bfd_arch_sparc, bfd_mach_sparc_v9,
                          GDB_OSABI_SOLARIS, sparc64_sol2_init_abi);