ubsan: xgate: left shift of negative value

[deliverable/binutils-gdb.git] / gdb / rs6000-tdep.c

diff --git a/gdb/rs6000-tdep.c b/gdb/rs6000-tdep.c
index 47a232f6c6ad8e81655f222bb8aabe284cd87a9a..f61009941da294257a71dd833260d0775f126d4f 100644 (file)
--- a/gdb/rs6000-tdep.c
+++ b/gdb/rs6000-tdep.c
@@ -1,6 +1,6 @@
 /* Target-dependent code for GDB, the GNU debugger.
 
-   Copyright (C) 1986-2019 Free Software Foundation, Inc.
+   Copyright (C) 1986-2020 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -1234,7 +1234,7 @@ store_insn_p (unsigned long op, unsigned long rs,
    this masking operation is equal to BL_INSTRUCTION, then the opcode in
    question is a ``bl'' instruction.
    
-   BL_DISPLACMENT_MASK is anded with the opcode in order to extract
+   BL_DISPLACEMENT_MASK is anded with the opcode in order to extract
    the branch displacement.  */
 
 #define BL_MASK 0xfc000001
@@ -1360,7 +1360,7 @@ rs6000_skip_stack_check (struct gdbarch *gdbarch, const CORE_ADDR start_pc)
       return pc;
     }
 
-  /* Third sequence: No probe; instead, a comparizon between the stack size
+  /* Third sequence: No probe; instead, a comparison between the stack size
      limit (saved in a run-time global variable) and the current stack
      pointer:
 
@@ -2119,9 +2119,9 @@ rs6000_skip_main_prologue (struct gdbarch *gdbarch, CORE_ADDR pc)
          to __eabi in case the GCC option "-fleading-underscore" was
         used to compile the program.  */
       if (s.minsym != NULL
-          && MSYMBOL_LINKAGE_NAME (s.minsym) != NULL
-         && (strcmp (MSYMBOL_LINKAGE_NAME (s.minsym), "__eabi") == 0
-             || strcmp (MSYMBOL_LINKAGE_NAME (s.minsym), "___eabi") == 0))
+          && s.minsym->linkage_name () != NULL
+         && (strcmp (s.minsym->linkage_name (), "__eabi") == 0
+             || strcmp (s.minsym->linkage_name (), "___eabi") == 0))
        pc += 4;
     }
   return pc;
@@ -2205,7 +2205,7 @@ rs6000_skip_trampoline_code (struct frame_info *frame, CORE_ADDR pc)
   msymbol = lookup_minimal_symbol_by_pc (pc);
   if (msymbol.minsym
       && rs6000_in_solib_return_trampoline (gdbarch, pc,
-                                           MSYMBOL_LINKAGE_NAME (msymbol.minsym)))
+                                           msymbol.minsym->linkage_name ()))
     {
       /* Double-check that the third instruction from PC is relative "b".  */
       op = read_memory_integer (pc + 8, 4, byte_order);
@@ -6141,16 +6141,6 @@ rs6000_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
   int num_pseudoregs = 0;
   int cur_reg;
 
-  /* INFO may refer to a binary that is not of the PowerPC architecture,
-     e.g. when debugging a stand-alone SPE executable on a Cell/B.E. system.
-     In this case, we must not attempt to infer properties of the (PowerPC
-     side) of the target system from properties of that executable.  Trust
-     the target description instead.  */
-  if (info.abfd
-      && bfd_get_arch (info.abfd) != bfd_arch_powerpc
-      && bfd_get_arch (info.abfd) != bfd_arch_rs6000)
-    info.abfd = NULL;
-
   from_xcoff_exec = info.abfd && info.abfd->format == bfd_object &&
     bfd_get_flavour (info.abfd) == bfd_target_xcoff_flavour;