PR symtab/17391 gdb internal error: assertion fails in regcache.c:178

[deliverable/binutils-gdb.git] / gdb / gdbarch.h

diff --git a/gdb/gdbarch.h b/gdb/gdbarch.h
index 0b4dc0615ddab468cd375e2f1aedeaaa90a29841..b9b2290c4c63cb6a69cc4415bfee79d207c5912b 100644 (file)
--- a/gdb/gdbarch.h
+++ b/gdb/gdbarch.h
@@ -54,7 +54,6 @@ struct target_desc;
 struct objfile;
 struct symbol;
 struct displaced_step_closure;
-struct core_regset_section;
 struct syscall;
 struct agent_expr;
 struct axs_value;
@@ -65,6 +64,8 @@ struct elf_internal_linux_prpsinfo;
 struct mem_range;
 struct syscalls_info;
 
+#include "regcache.h"
+
 /* The architecture associated with the inferior through the
    connection to the target.
 
@@ -333,7 +334,8 @@ typedef int (gdbarch_sdb_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int sdb_
 extern int gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, int sdb_regnr);
 extern void set_gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_sdb_reg_to_regnum_ftype *sdb_reg_to_regnum);
 
-/* Provide a default mapping from a DWARF2 register number to a gdb REGNUM. */
+/* Provide a default mapping from a DWARF2 register number to a gdb REGNUM.
+   Return -1 for bad REGNUM.  Note: Several targets get this wrong. */
 
 typedef int (gdbarch_dwarf2_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int dwarf2_regnr);
 extern int gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, int dwarf2_regnr);
@@ -683,7 +685,7 @@ extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, gdb
 
 /* A target might have problems with watchpoints as soon as the stack
    frame of the current function has been destroyed.  This mostly happens
-   as the first action in a funtion's epilogue.  in_function_epilogue_p()
+   as the first action in a function's epilogue.  stack_frame_destroyed_p()
    is defined to return a non-zero value if either the given addr is one
    instruction after the stack destroying instruction up to the trailing
    return instruction or if we can figure out that the stack frame has
@@ -691,9 +693,9 @@ extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, gdb
    which don't suffer from that problem could just let this functionality
    untouched. */
 
-typedef int (gdbarch_in_function_epilogue_p_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
-extern int gdbarch_in_function_epilogue_p (struct gdbarch *gdbarch, CORE_ADDR addr);
-extern void set_gdbarch_in_function_epilogue_p (struct gdbarch *gdbarch, gdbarch_in_function_epilogue_p_ftype *in_function_epilogue_p);
+typedef int (gdbarch_stack_frame_destroyed_p_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
+extern int gdbarch_stack_frame_destroyed_p (struct gdbarch *gdbarch, CORE_ADDR addr);
+extern void set_gdbarch_stack_frame_destroyed_p (struct gdbarch *gdbarch, gdbarch_stack_frame_destroyed_p_ftype *stack_frame_destroyed_p);
 
 /* Process an ELF symbol in the minimal symbol table in a backend-specific
    way.  Normally this hook is supposed to do nothing, however if required,
@@ -921,7 +923,11 @@ extern void set_gdbarch_max_insn_length (struct gdbarch *gdbarch, ULONGEST max_i
   
    If your architecture doesn't need to adjust instructions before
    single-stepping them, consider using simple_displaced_step_copy_insn
-   here. */
+   here.
+  
+   If the instruction cannot execute out of line, return NULL.  The
+   core falls back to stepping past the instruction in-line instead in
+   that case. */
 
 extern int gdbarch_displaced_step_copy_insn_p (struct gdbarch *gdbarch);
 
@@ -1308,8 +1314,8 @@ extern void set_gdbarch_has_shared_address_space (struct gdbarch *gdbarch, gdbar
 
 /* True if a fast tracepoint can be set at an address. */
 
-typedef int (gdbarch_fast_tracepoint_valid_at_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, int *isize, char **msg);
-extern int gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, CORE_ADDR addr, int *isize, char **msg);
+typedef int (gdbarch_fast_tracepoint_valid_at_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, char **msg);
+extern int gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, CORE_ADDR addr, char **msg);
 extern void set_gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, gdbarch_fast_tracepoint_valid_at_ftype *fast_tracepoint_valid_at);
 
 /* Return the "auto" target charset. */
@@ -1438,6 +1444,13 @@ typedef CORE_ADDR (gdbarch_infcall_mmap_ftype) (CORE_ADDR size, unsigned prot);
 extern CORE_ADDR gdbarch_infcall_mmap (struct gdbarch *gdbarch, CORE_ADDR size, unsigned prot);
 extern void set_gdbarch_infcall_mmap (struct gdbarch *gdbarch, gdbarch_infcall_mmap_ftype *infcall_mmap);
 
+/* Deallocate SIZE bytes of memory at ADDR in inferior from gdbarch_infcall_mmap.
+   Print a warning if it is not possible. */
+
+typedef void (gdbarch_infcall_munmap_ftype) (CORE_ADDR addr, CORE_ADDR size);
+extern void gdbarch_infcall_munmap (struct gdbarch *gdbarch, CORE_ADDR addr, CORE_ADDR size);
+extern void set_gdbarch_infcall_munmap (struct gdbarch *gdbarch, gdbarch_infcall_munmap_ftype *infcall_munmap);
+
 /* Return string (caller has to use xfree for it) with options for GCC
    to produce code for this target, typically "-m64", "-m32" or "-m31".
    These options are put before CU's DW_AT_producer compilation options so that
@@ -1457,6 +1470,14 @@ typedef const char * (gdbarch_gnu_triplet_regexp_ftype) (struct gdbarch *gdbarch
 extern const char * gdbarch_gnu_triplet_regexp (struct gdbarch *gdbarch);
 extern void set_gdbarch_gnu_triplet_regexp (struct gdbarch *gdbarch, gdbarch_gnu_triplet_regexp_ftype *gnu_triplet_regexp);
 
+/* Return the size in 8-bit bytes of an addressable memory unit on this
+   architecture.  This corresponds to the number of 8-bit bytes associated to
+   each address in memory. */
+
+typedef int (gdbarch_addressable_memory_unit_size_ftype) (struct gdbarch *gdbarch);
+extern int gdbarch_addressable_memory_unit_size (struct gdbarch *gdbarch);
+extern void set_gdbarch_addressable_memory_unit_size (struct gdbarch *gdbarch, gdbarch_addressable_memory_unit_size_ftype *addressable_memory_unit_size);
+
 /* Definition for an unknown syscall, used basically in error-cases.  */
 #define UNKNOWN_SYSCALL (-1)
 
@@ -1540,7 +1561,7 @@ struct gdbarch_info
   bfd *abfd;
 
   /* Use default: NULL (ZERO).  */
-  struct gdbarch_tdep_info *tdep_info;
+  void *tdep_info;
 
   /* Use default: GDB_OSABI_UNINITIALIZED (-1).  */
   enum gdb_osabi osabi;
@@ -1597,6 +1618,11 @@ extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
 
+/* Duplicate STRING, returning an equivalent string that's allocated on the
+   obstack associated with GDBARCH.  The string is freed when the corresponding
+   architecture is also freed.  */
+
+extern char *gdbarch_obstack_strdup (struct gdbarch *arch, const char *string);
 
 /* Helper function.  Force an update of the current architecture.