gdbsupport: allow passing format string to scoped_debug_start_end

[deliverable/binutils-gdb.git] / gdb / arm-linux-tdep.c

diff --git a/gdb/arm-linux-tdep.c b/gdb/arm-linux-tdep.c
index 2d563c2b024f0a36431d1724affab3e58ed90509..773a93384f77c6fdbc5a1d46ba569ba3c2956b9b 100644 (file)
--- a/gdb/arm-linux-tdep.c
+++ b/gdb/arm-linux-tdep.c
@@ -1,6 +1,6 @@
 /* GNU/Linux on ARM target support.
 
-   Copyright (C) 1999-2020 Free Software Foundation, Inc.
+   Copyright (C) 1999-2021 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -32,6 +32,7 @@
 #include "breakpoint.h"
 #include "auxv.h"
 #include "xml-syscall.h"
+#include "expop.h"
 
 #include "aarch32-tdep.h"
 #include "arch/arm.h"
@@ -946,7 +947,7 @@ arm_linux_software_single_step (struct regcache *regcache)
 static void
 arm_linux_cleanup_svc (struct gdbarch *gdbarch,
                       struct regcache *regs,
-                      arm_displaced_step_closure *dsc)
+                      arm_displaced_step_copy_insn_closure *dsc)
 {
   ULONGEST apparent_pc;
   int within_scratch;
@@ -970,7 +971,7 @@ arm_linux_cleanup_svc (struct gdbarch *gdbarch,
 
 static int
 arm_linux_copy_svc (struct gdbarch *gdbarch, struct regcache *regs,
-                   arm_displaced_step_closure *dsc)
+                   arm_displaced_step_copy_insn_closure *dsc)
 {
   CORE_ADDR return_to = 0;
 
@@ -1056,7 +1057,7 @@ arm_linux_copy_svc (struct gdbarch *gdbarch, struct regcache *regs,
 static void
 cleanup_kernel_helper_return (struct gdbarch *gdbarch,
                              struct regcache *regs,
-                             arm_displaced_step_closure *dsc)
+                             arm_displaced_step_copy_insn_closure *dsc)
 {
   displaced_write_reg (regs, dsc, ARM_LR_REGNUM, dsc->tmp[0], CANNOT_WRITE_PC);
   displaced_write_reg (regs, dsc, ARM_PC_REGNUM, dsc->tmp[0], BRANCH_WRITE_PC);
@@ -1065,7 +1066,7 @@ cleanup_kernel_helper_return (struct gdbarch *gdbarch,
 static void
 arm_catch_kernel_helper_return (struct gdbarch *gdbarch, CORE_ADDR from,
                                CORE_ADDR to, struct regcache *regs,
-                               arm_displaced_step_closure *dsc)
+                               arm_displaced_step_copy_insn_closure *dsc)
 {
   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
 
@@ -1094,13 +1095,13 @@ arm_catch_kernel_helper_return (struct gdbarch *gdbarch, CORE_ADDR from,
    the program has stepped into a Linux kernel helper routine (which must be
    handled as a special case).  */
 
-static displaced_step_closure_up
+static displaced_step_copy_insn_closure_up
 arm_linux_displaced_step_copy_insn (struct gdbarch *gdbarch,
                                    CORE_ADDR from, CORE_ADDR to,
                                    struct regcache *regs)
 {
-  std::unique_ptr<arm_displaced_step_closure> dsc
-    (new arm_displaced_step_closure);
+  std::unique_ptr<arm_displaced_step_copy_insn_closure> dsc
+    (new arm_displaced_step_copy_insn_closure);
 
   /* Detect when we enter an (inaccessible by GDB) Linux kernel helper, and
      stop at the return location.  */
@@ -1122,7 +1123,7 @@ arm_linux_displaced_step_copy_insn (struct gdbarch *gdbarch,
   arm_displaced_init_closure (gdbarch, from, to, dsc.get ());
 
   /* This is a work around for a problem with g++ 4.8.  */
-  return displaced_step_closure_up (dsc.release ());
+  return displaced_step_copy_insn_closure_up (dsc.release ());
 }
 
 /* Implementation of `gdbarch_stap_is_single_operand', as defined in
@@ -1146,7 +1147,7 @@ arm_stap_is_single_operand (struct gdbarch *gdbarch, const char *s)
    It returns one if the special token has been parsed successfully,
    or zero if the current token is not considered special.  */
 
-static int
+static expr::operation_up
 arm_stap_parse_special_token (struct gdbarch *gdbarch,
                              struct stap_parse_info *p)
 {
@@ -1161,7 +1162,6 @@ arm_stap_parse_special_token (struct gdbarch *gdbarch,
       int len, offset;
       int got_minus = 0;
       long displacement;
-      struct stoken str;
 
       ++tmp;
       start = tmp;
@@ -1171,7 +1171,7 @@ arm_stap_parse_special_token (struct gdbarch *gdbarch,
        ++tmp;
 
       if (*tmp != ',')
-       return 0;
+       return {};
 
       len = tmp - start;
       regname = (char *) alloca (len + 2);
@@ -1212,43 +1212,38 @@ arm_stap_parse_special_token (struct gdbarch *gdbarch,
 
       /* Skipping last `]'.  */
       if (*tmp++ != ']')
-       return 0;
+       return {};
+      p->arg = tmp;
+
+      using namespace expr;
 
       /* The displacement.  */
-      write_exp_elt_opcode (&p->pstate, OP_LONG);
-      write_exp_elt_type (&p->pstate, builtin_type (gdbarch)->builtin_long);
-      write_exp_elt_longcst (&p->pstate, displacement);
-      write_exp_elt_opcode (&p->pstate, OP_LONG);
+      struct type *long_type = builtin_type (gdbarch)->builtin_long;
       if (got_minus)
-       write_exp_elt_opcode (&p->pstate, UNOP_NEG);
+       displacement = -displacement;
+      operation_up disp = make_operation<long_const_operation> (long_type,
+                                                               displacement);
 
       /* The register name.  */
-      write_exp_elt_opcode (&p->pstate, OP_REGISTER);
-      str.ptr = regname;
-      str.length = len;
-      write_exp_string (&p->pstate, str);
-      write_exp_elt_opcode (&p->pstate, OP_REGISTER);
+      operation_up reg
+       = make_operation<register_operation> (regname);
 
-      write_exp_elt_opcode (&p->pstate, BINOP_ADD);
+      operation_up sum
+       = make_operation<add_operation> (std::move (reg), std::move (disp));
 
       /* Casting to the expected type.  */
-      write_exp_elt_opcode (&p->pstate, UNOP_CAST);
-      write_exp_elt_type (&p->pstate, lookup_pointer_type (p->arg_type));
-      write_exp_elt_opcode (&p->pstate, UNOP_CAST);
-
-      write_exp_elt_opcode (&p->pstate, UNOP_IND);
-
-      p->arg = tmp;
+      struct type *arg_ptr_type = lookup_pointer_type (p->arg_type);
+      sum = make_operation<unop_cast_operation> (std::move (sum),
+                                                arg_ptr_type);
+      return make_operation<unop_ind_operation> (std::move (sum));
     }
-  else
-    return 0;
 
-  return 1;
+  return {};
 }
 
 /* ARM process record-replay constructs: syscall, signal etc.  */
 
-struct linux_record_tdep arm_linux_record_tdep;
+static linux_record_tdep arm_linux_record_tdep;
 
 /* arm_canonicalize_syscall maps from the native arm Linux set
    of syscall ids into a canonical set of syscall ids used by
@@ -1721,7 +1716,7 @@ arm_linux_init_abi (struct gdbarch_info info,
                                                                    NULL };
   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
 
-  linux_init_abi (info, gdbarch);
+  linux_init_abi (info, gdbarch, 1);
 
   tdep->lowest_pc = 0x8000;
   if (info.byte_order_for_code == BFD_ENDIAN_BIG)
@@ -1807,7 +1802,6 @@ arm_linux_init_abi (struct gdbarch_info info,
   set_gdbarch_displaced_step_copy_insn (gdbarch,
                                        arm_linux_displaced_step_copy_insn);
   set_gdbarch_displaced_step_fixup (gdbarch, arm_displaced_step_fixup);
-  set_gdbarch_displaced_step_location (gdbarch, linux_displaced_step_location);
 
   /* Reversible debugging, process record.  */
   set_gdbarch_process_record (gdbarch, arm_process_record);