Rebase patch #7

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

diff --git a/gdb/gdbarch.h b/gdb/gdbarch.h
index 6f9e844038ceda0f51f578349d528b12ac7eeebd..82e025956b81ea08c92b27686594f896f8012658 100644 (file)
--- a/gdb/gdbarch.h
+++ b/gdb/gdbarch.h
@@ -923,7 +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);
 
@@ -1310,8 +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. */
@@ -1440,6 +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
@@ -1459,6 +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)
 
@@ -1599,6 +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.