Replace the remaining uses of strerror with safe_strerror

[deliverable/binutils-gdb.git] / gdb / sparc-sol2-tdep.c

diff --git a/gdb/sparc-sol2-tdep.c b/gdb/sparc-sol2-tdep.c
index 5f65b7826d1befdec8ca00dd51a3882b775d11ab..0a8a9beae42f7049fe81dc727c03540cee055cff 100644 (file)
--- a/gdb/sparc-sol2-tdep.c
+++ b/gdb/sparc-sol2-tdep.c
@@ -1,12 +1,12 @@
 /* Target-dependent code for Solaris SPARC.
 
 /* Target-dependent code for Solaris SPARC.
 

-   Copyright 2003 Free Software Foundation, Inc.
+   Copyright (C) 2003-2019 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., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, 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"


@@ -27,16 +25,16 @@
 #include "objfiles.h"
 #include "osabi.h"
 #include "regcache.h"
 #include "objfiles.h"
 #include "osabi.h"
 #include "regcache.h"

+#include "regset.h"

 #include "target.h"
 #include "trad-frame.h"
 
 #include "target.h"
 #include "trad-frame.h"
 

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

 #include "sparc-tdep.h"
 #include "sparc-tdep.h"

+#include "solib-svr4.h"

 
 /* From <sys/regset.h>.  */
 
 /* From <sys/regset.h>.  */

-const struct sparc_gregset sparc32_sol2_gregset =
+const struct sparc_gregmap sparc32_sol2_gregmap =

 {
   32 * 4,                      /* %psr */
   33 * 4,                      /* %pc */
 {
   32 * 4,                      /* %psr */
   33 * 4,                      /* %pc */


@@ -47,6 +45,58 @@ const struct sparc_gregset sparc32_sol2_gregset =
   1 * 4,                       /* %g1 */
   16 * 4,                      /* %l0 */
 };
   1 * 4,                       /* %g1 */
   16 * 4,                      /* %l0 */
 };

+
+const struct sparc_fpregmap sparc32_sol2_fpregmap =
+{
+  0 * 4,                       /* %f0 */
+  33 * 4,                      /* %fsr */
+};
+
+static void
+sparc32_sol2_supply_core_gregset (const struct regset *regset,
+                                 struct regcache *regcache,
+                                 int regnum, const void *gregs, size_t len)
+{
+  sparc32_supply_gregset (&sparc32_sol2_gregmap, regcache, regnum, gregs);
+}
+
+static void
+sparc32_sol2_collect_core_gregset (const struct regset *regset,
+                                  const struct regcache *regcache,
+                                  int regnum, void *gregs, size_t len)
+{
+  sparc32_collect_gregset (&sparc32_sol2_gregmap, regcache, regnum, gregs);
+}
+
+static void
+sparc32_sol2_supply_core_fpregset (const struct regset *regset,
+                                  struct regcache *regcache,
+                                  int regnum, const void *fpregs, size_t len)
+{
+  sparc32_supply_fpregset (&sparc32_sol2_fpregmap, regcache, regnum, fpregs);
+}
+
+static void
+sparc32_sol2_collect_core_fpregset (const struct regset *regset,
+                                   const struct regcache *regcache,
+                                   int regnum, void *fpregs, size_t len)
+{
+  sparc32_collect_fpregset (&sparc32_sol2_fpregmap, regcache, regnum, fpregs);
+}
+
+static const struct regset sparc32_sol2_gregset =
+  {
+    NULL,
+    sparc32_sol2_supply_core_gregset,
+    sparc32_sol2_collect_core_gregset
+  };
+
+static const struct regset sparc32_sol2_fpregset =
+  {
+    NULL,
+    sparc32_sol2_supply_core_fpregset,
+    sparc32_sol2_collect_core_fpregset
+  };

 \f
 
 /* The Solaris signal trampolines reside in libc.  For normal signals,
 \f
 
 /* The Solaris signal trampolines reside in libc.  For normal signals,


@@ -56,7 +106,7 @@ const struct sparc_gregset sparc32_sol2_gregset =
    `ucontext_t', which has a member `uc_mcontext' that contains the
    saved registers.  Incidentally, the kernel passes the `ucontext_t'
    pointer as the third argument of the signal trampoline too, and
    `ucontext_t', which has a member `uc_mcontext' that contains the
    saved registers.  Incidentally, the kernel passes the `ucontext_t'
    pointer as the third argument of the signal trampoline too, and

-   `sigacthandler' simply passes it on. However, if you link your
+   `sigacthandler' simply passes it on.  However, if you link your

    program with "-L/usr/ucblib -R/usr/ucblib -lucb", the function
    `ucbsigvechandler' will be used, which invokes the using the BSD
    convention, where the third argument is a pointer to an instance of
    program with "-L/usr/ucblib -R/usr/ucblib -lucb", the function
    `ucbsigvechandler' will be used, which invokes the using the BSD
    convention, where the third argument is a pointer to an instance of


@@ -66,14 +116,15 @@ const struct sparc_gregset sparc32_sol2_gregset =
    ignore this.  */
 
 int
    ignore this.  */
 
 int

-sparc_sol2_pc_in_sigtramp (CORE_ADDR pc, char *name)
+sparc_sol2_pc_in_sigtramp (CORE_ADDR pc, const char *name)

 {
   return (name && (strcmp (name, "sigacthandler") == 0
 {
   return (name && (strcmp (name, "sigacthandler") == 0

-                  || strcmp (name, "ucbsigvechandler") == 0));
+                  || strcmp (name, "ucbsigvechandler") == 0
+                  || strcmp (name, "__sighndlr") == 0));

 }
 
 static struct sparc_frame_cache *
 }
 
 static struct sparc_frame_cache *

-sparc32_sol2_sigtramp_frame_cache (struct frame_info *next_frame,
+sparc32_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;


@@ -81,18 +132,19 @@ sparc32_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) + 40;
+  regnum =
+    (cache->copied_regs_mask & 0x04) ? SPARC_I2_REGNUM : SPARC_O2_REGNUM;
+  mcontext_addr = get_frame_register_unsigned (this_frame, regnum) + 40;

 
   cache->saved_regs[SPARC32_PSR_REGNUM].addr = mcontext_addr + 0 * 4;
   cache->saved_regs[SPARC32_PC_REGNUM].addr = mcontext_addr + 1 * 4;
 
   cache->saved_regs[SPARC32_PSR_REGNUM].addr = mcontext_addr + 0 * 4;
   cache->saved_regs[SPARC32_PC_REGNUM].addr = mcontext_addr + 1 * 4;


@@ -104,7 +156,7 @@ sparc32_sol2_sigtramp_frame_cache (struct frame_info *next_frame,
        regnum <= SPARC_O7_REGNUM; regnum++, addr += 4)
     cache->saved_regs[regnum].addr = addr;
 
        regnum <= SPARC_O7_REGNUM; regnum++, addr += 4)
     cache->saved_regs[regnum].addr = addr;
 

-  if (get_frame_memory_unsigned (next_frame, mcontext_addr + 19 * 4, 4))
+  if (get_frame_memory_unsigned (this_frame, mcontext_addr + 19 * 4, 4))

     {
       /* 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++)


@@ -113,7 +165,7 @@ sparc32_sol2_sigtramp_frame_cache (struct frame_info *next_frame,
   else
     {
       addr = cache->saved_regs[SPARC_SP_REGNUM].addr;
   else
     {
       addr = cache->saved_regs[SPARC_SP_REGNUM].addr;

-      addr = get_frame_memory_unsigned (next_frame, addr, 4);
+      addr = get_frame_memory_unsigned (this_frame, addr, 4);

       for (regnum = SPARC_L0_REGNUM;
           regnum <= SPARC_I7_REGNUM; regnum++, addr += 4)
        cache->saved_regs[regnum].addr = addr;
       for (regnum = SPARC_L0_REGNUM;
           regnum <= SPARC_I7_REGNUM; regnum++, addr += 4)
        cache->saved_regs[regnum].addr = addr;


@@ -123,49 +175,81 @@ sparc32_sol2_sigtramp_frame_cache (struct frame_info *next_frame,
 }
 
 static void
 }
 
 static void

-sparc32_sol2_sigtramp_frame_this_id (struct frame_info *next_frame,
+sparc32_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 =

-    sparc32_sol2_sigtramp_frame_cache (next_frame, this_cache);
+    sparc32_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
-sparc32_sol2_sigtramp_frame_prev_register (struct frame_info *next_frame,
+static struct value *
+sparc32_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, void *valuep)
+                                          int regnum)

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

-    sparc32_sol2_sigtramp_frame_cache (next_frame, this_cache);
+    sparc32_sol2_sigtramp_frame_cache (this_frame, this_cache);

 
 

-  trad_frame_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
+sparc32_sol2_sigtramp_frame_sniffer (const struct frame_unwind *self,
+                                    struct frame_info *this_frame,
+                                    void **this_cache)
+{
+  CORE_ADDR pc = get_frame_pc (this_frame);
+  const char *name;
+
+  find_pc_partial_function (pc, &name, NULL, NULL);
+  if (sparc_sol2_pc_in_sigtramp (pc, name))
+    return 1;
+
+  return 0;

 }
 
 static const struct frame_unwind sparc32_sol2_sigtramp_frame_unwind =
 {
   SIGTRAMP_FRAME,
 }
 
 static const struct frame_unwind sparc32_sol2_sigtramp_frame_unwind =
 {
   SIGTRAMP_FRAME,

+  default_frame_unwind_stop_reason,

   sparc32_sol2_sigtramp_frame_this_id,
   sparc32_sol2_sigtramp_frame_this_id,

-  sparc32_sol2_sigtramp_frame_prev_register
+  sparc32_sol2_sigtramp_frame_prev_register,
+  NULL,
+  sparc32_sol2_sigtramp_frame_sniffer

 };
 
 };
 

-static const struct frame_unwind *
-sparc32_sol2_sigtramp_frame_sniffer (struct frame_info *next_frame)
-{
-  CORE_ADDR pc = frame_pc_unwind (next_frame);
-  char *name;
+/* Unglobalize NAME.  */

 
 

-  find_pc_partial_function (pc, &name, NULL, NULL);
-  if (sparc_sol2_pc_in_sigtramp (pc, name))
-    return &sparc32_sol2_sigtramp_frame_unwind;
+const char *
+sparc_sol2_static_transform_name (const char *name)
+{
+  /* The Sun compilers (Sun ONE Studio, Forte Developer, Sun WorkShop,
+     SunPRO) convert file static variables into global values, a
+     process known as globalization.  In order to do this, the
+     compiler will create a unique prefix and prepend it to each file
+     static variable.  For static variables within a function, this
+     globalization prefix is followed by the function name (nested
+     static variables within a function are supposed to generate a
+     warning message, and are left alone).  The procedure is
+     documented in the Stabs Interface Manual, which is distributed
+     with the compilers, although version 4.0 of the manual seems to
+     be incorrect in some places, at least for SPARC.  The
+     globalization prefix is encoded into an N_OPT stab, with the form
+     "G=<prefix>".  The globalization prefix always seems to start
+     with a dollar sign '$'; a dot '.' is used as a separator.  So we
+     simply strip everything up until the last dot.  */
+
+  if (name[0] == '$')
+    {
+      const char *p = strrchr (name, '.');
+      if (p)
+        return p + 1;
+    }

 
 

-  return NULL;
+  return name;

 }
 \f
 
 }
 \f
 


@@ -174,9 +258,27 @@ sparc32_sol2_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
 {
   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
 
 {
   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
 

+  tdep->gregset = &sparc32_sol2_gregset;
+  tdep->sizeof_gregset = 152;
+
+  tdep->fpregset = &sparc32_sol2_fpregset;
+  tdep->sizeof_fpregset = 400;
+
+  /* The Sun compilers (Sun ONE Studio, Forte Developer, Sun WorkShop, SunPRO)
+     compiler puts out 0 instead of the address in N_SO stabs.  Starting with
+     SunPRO 3.0, the compiler does this for N_FUN stabs too.  */
+  set_gdbarch_sofun_address_maybe_missing (gdbarch, 1);
+
+  /* The Sun compilers also do "globalization"; see the comment in
+     sparc_sol2_static_transform_name for more information.  */
+  set_gdbarch_static_transform_name
+    (gdbarch, sparc_sol2_static_transform_name);
+

   /* Solaris has SVR4-style shared libraries...  */
   /* Solaris has SVR4-style shared libraries...  */

-  set_gdbarch_in_solib_call_trampoline (gdbarch, in_plt_section);

   set_gdbarch_skip_trampoline_code (gdbarch, find_solib_trampoline_target);
   set_gdbarch_skip_trampoline_code (gdbarch, find_solib_trampoline_target);

+  set_gdbarch_skip_solib_resolver (gdbarch, sol2_skip_solib_resolver);
+  set_solib_svr4_fetch_link_map_offsets
+    (gdbarch, svr4_ilp32_fetch_link_map_offsets);

 
   /* ...which means that we need some special handling when doing
      prologue analysis.  */
 
   /* ...which means that we need some special handling when doing
      prologue analysis.  */


@@ -185,13 +287,11 @@ sparc32_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);
 

-  set_gdbarch_pc_in_sigtramp (gdbarch, sparc_sol2_pc_in_sigtramp);
-  frame_unwind_append_sniffer (gdbarch, sparc32_sol2_sigtramp_frame_sniffer);
-}
-\f
+  frame_unwind_append_unwinder (gdbarch, &sparc32_sol2_sigtramp_frame_unwind);

 
 

-/* Provide a prototype to silence -Wmissing-prototypes.  */
-void _initialize_sparc_sol2_tdep (void);
+  /* How to print LWP PTIDs from core files.  */
+  set_gdbarch_core_pid_to_str (gdbarch, sol2_core_pid_to_str);
+}

 
 void
 _initialize_sparc_sol2_tdep (void)
 
 void
 _initialize_sparc_sol2_tdep (void)