gdb: change gdbarch_stap_is_single_operand to return bool

Change-Id: I46976d84d1971df2cec75b70a1cf75168d740a10
Approved-By: Tom Tromey <tom@tromey.com>

gdb/aarch64-linux-tdep.c

@@ -1797,7 +1797,7 @@ aarch64_linux_core_read_description (struct gdbarch *gdbarch,
 /* Implementation of `gdbarch_stap_is_single_operand', as defined in
    gdbarch.h.  */
 
-static int
+static bool
 aarch64_stap_is_single_operand (struct gdbarch *gdbarch, const char *s)
 {
   return (*s == '#' || c_isdigit (*s) /* Literal number.  */

gdb/arm-linux-tdep.c

@@ -1163,7 +1163,7 @@ arm_linux_displaced_step_copy_insn (struct gdbarch *gdbarch,
 /* Implementation of `gdbarch_stap_is_single_operand', as defined in
    gdbarch.h.  */
 
-static int
+static bool
 arm_stap_is_single_operand (struct gdbarch *gdbarch, const char *s)
 {
   return (*s == '#' || *s == '$' || c_isdigit (*s) /* Literal number.  */

gdb/gdbarch-gen.c

@@ -4537,7 +4537,7 @@ gdbarch_stap_is_single_operand_p (struct gdbarch *gdbarch)
   return gdbarch->stap_is_single_operand != NULL;
 }
 
-int
+bool
 gdbarch_stap_is_single_operand (struct gdbarch *gdbarch, const char *s)
 {
   gdb_assert (gdbarch != NULL);

gdb/gdbarch-gen.h

@@ -1387,14 +1387,14 @@ extern void set_gdbarch_stap_gdb_register_suffix (struct gdbarch *gdbarch, const
    - Register displacement, e.g. `4(%eax)' on x86
 
    This function should check for these patterns on the string
-   and return 1 if some were found, or zero otherwise.  Please try to match
+   and return true if some were found, or false otherwise.  Please try to match
    as much info as you can from the string, i.e., if you have to match
    something like `(%', do not match just the `('. */
 
 extern bool gdbarch_stap_is_single_operand_p (struct gdbarch *gdbarch);
 
-typedef int (gdbarch_stap_is_single_operand_ftype) (struct gdbarch *gdbarch, const char *s);
-extern int gdbarch_stap_is_single_operand (struct gdbarch *gdbarch, const char *s);
+typedef bool (gdbarch_stap_is_single_operand_ftype) (struct gdbarch *gdbarch, const char *s);
+extern bool gdbarch_stap_is_single_operand (struct gdbarch *gdbarch, const char *s);
 extern void set_gdbarch_stap_is_single_operand (struct gdbarch *gdbarch, gdbarch_stap_is_single_operand_ftype *stap_is_single_operand);
 
 /* Function used to handle a "special case" in the parser.

gdb/gdbarch_components.py

@@ -2244,11 +2244,11 @@ Single operands can be:
 - Register displacement, e.g. `4(%eax)' on x86
 
 This function should check for these patterns on the string
-and return 1 if some were found, or zero otherwise.  Please try to match
+and return true if some were found, or false otherwise.  Please try to match
 as much info as you can from the string, i.e., if you have to match
 something like `(%', do not match just the `('.
 """,
-    type="int",
+    type="bool",
     name="stap_is_single_operand",
     params=[("const char *", "s")],
     predicate=True,

gdb/i386-tdep.c

@@ -3835,7 +3835,7 @@ i386_svr4_sigcontext_addr (const frame_info_ptr &this_frame)
 /* Implementation of `gdbarch_stap_is_single_operand', as defined in
    gdbarch.h.  */
 
-int
+bool
 i386_stap_is_single_operand (struct gdbarch *gdbarch, const char *s)
 {
   return (*s == '$' /* Literal number.  */

gdb/i386-tdep.h

@@ -481,8 +481,8 @@ extern int i386bsd_sc_reg_offset[];
 
 /* SystemTap related functions.  */
 
-extern int i386_stap_is_single_operand (struct gdbarch *gdbarch,
-					const char *s);
+extern bool i386_stap_is_single_operand (struct gdbarch *gdbarch,
+					 const char *s);
 
 extern expr::operation_up i386_stap_parse_special_token
      (struct gdbarch *gdbarch, struct stap_parse_info *p);

gdb/ia64-linux-tdep.c

@@ -124,7 +124,7 @@ ia64_linux_write_pc (struct regcache *regcache, CORE_ADDR pc)
 /* Implementation of `gdbarch_stap_is_single_operand', as defined in
    gdbarch.h.  */
 
-static int
+static bool
 ia64_linux_stap_is_single_operand (struct gdbarch *gdbarch, const char *s)
 {
   return ((c_isdigit (*s) && s[1] == '[' && s[2] == 'r') /* Displacement.  */

gdb/ppc-linux-tdep.c

@@ -1707,7 +1707,7 @@ ppc_elfv2_skip_entrypoint (struct gdbarch *gdbarch, CORE_ADDR pc)
 /* Implementation of `gdbarch_stap_is_single_operand', as defined in
    gdbarch.h.  */
 
-static int
+static bool
 ppc_stap_is_single_operand (struct gdbarch *gdbarch, const char *s)
 {
   return (*s == 'i' /* Literal number.  */

gdb/riscv-tdep.c

@@ -4178,7 +4178,7 @@ riscv_print_insn (bfd_vma addr, struct disassemble_info *info)
 /* Implementation of `gdbarch_stap_is_single_operand', as defined in
    gdbarch.h.  */
 
-static int
+static bool
 riscv_stap_is_single_operand (struct gdbarch *gdbarch, const char *s)
 {
   return (c_isdigit (*s) /* Literal number.  */

gdb/s390-tdep.c

@@ -7049,7 +7049,7 @@ s390_gnu_triplet_regexp (struct gdbarch *gdbarch)
 /* Implementation of `gdbarch_stap_is_single_operand', as defined in
    gdbarch.h.  */
 
-static int
+static bool
 s390_stap_is_single_operand (struct gdbarch *gdbarch, const char *s)
 {
   return ((c_isdigit (*s) && s[1] == '(' && s[2] == '%') /* Displacement