gdb: add names to unwinders, add debug messages when looking for unwinder

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

diff --git a/gdb/sparc64-sol2-tdep.c b/gdb/sparc64-sol2-tdep.c
index a1367423c35f852618bf7a101462b3de3734a1ad..6aea8bd56d7d8fbd79e773a66963696c1b5a8fd0 100644 (file)
--- a/gdb/sparc64-sol2-tdep.c
+++ b/gdb/sparc64-sol2-tdep.c
@@ -1,6 +1,6 @@
 /* Target-dependent code for Solaris UltraSPARC.
 
-   Copyright (C) 2003-2020 Free Software Foundation, Inc.
+   Copyright (C) 2003-2021 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -121,33 +121,33 @@ sparc64_sol2_sigtramp_frame_cache (struct frame_info *this_frame,
     (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)
-    cache->saved_regs[regnum].addr = addr;
+    cache->saved_regs[regnum].set_addr (addr);
 
   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++)
-       trad_frame_set_unknown (cache->saved_regs, regnum);
+       cache->saved_regs[regnum].set_unknown ();
     }
   else
     {
       CORE_ADDR sp;
 
-      addr = cache->saved_regs[SPARC_SP_REGNUM].addr;
+      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)
-       cache->saved_regs[regnum].addr = addr;
+       cache->saved_regs[regnum].set_addr (addr);
     }
 
   return cache;
@@ -180,17 +180,12 @@ sparc64_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;
+  return sol2_sigtramp_p (this_frame);
 }
+
 static const struct frame_unwind sparc64_sol2_sigtramp_frame_unwind =
 {
+  "sparc64 solaris sigtramp",
   SIGTRAMP_FRAME,
   default_frame_unwind_stop_reason,
   sparc64_sol2_sigtramp_frame_this_id,
@@ -201,7 +196,7 @@ static const struct frame_unwind sparc64_sol2_sigtramp_frame_unwind =
 
 \f
 
-void
+static void
 sparc64_sol2_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
 {
   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
@@ -216,19 +211,10 @@ sparc64_sol2_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
 
   sparc64_init_abi (info, gdbarch);
 
-  /* 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);
+  sol2_init_abi (info, gdbarch);
 
   /* Solaris has SVR4-style shared libraries...  */
   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_lp64_fetch_link_map_offsets);
 
@@ -238,13 +224,11 @@ 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);
-
-  /* How to print LWP PTIDs from core files.  */
-  set_gdbarch_core_pid_to_str (gdbarch, sol2_core_pid_to_str);
 }
 
+void _initialize_sparc64_sol2_tdep ();
 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);