* gdbarch.sh (stab_reg_to_regnum, dwarf_reg_to_regnum)

	( dwarf2_reg_to_regnum, sdb_reg_to_regnum, ecoff_reg_to_regnum): Add
	gdbarch as parameter.
	* gdbarch.{c,h}: Regenerate.

	* xtensa-tdep.c (xtensa_reg_to_regnum): Add gdbarch as parameter.
	Replace current_gdbarch by gdbarch.
	* s390-tdep.c (s390_dwarf_reg_to_regnum): Likewise.
	* rs6000-tdep.c (rs6000_stab_reg_to_regnum)
	(rs6000_dwarf2_reg_to_regnum): Likewise.
	* mips-tdep.c (mips_stab_reg_to_regnum)
	(mips_dwarf_dwarf2_ecoff_reg_to_regnum): Likewise.
	* mep-tdep.c (mep_debug_reg_to_regnum): Likewise.
	* m32c-tdep.c (m32c_debug_info_reg_to_regnum): Likewise.
	* i386-tdep.c (i386_dbx_reg_to_regnum)
	(i386_svr4_reg_to_regnum): Likewise
	* h8300-tdep.c (h8300s_dbg_reg_to_regnum)
	(h8300_dbg_reg_to_regnum): Likewise.
	* amd64-tdep.c (amd64_dwarf_reg_to_regnum): Likewise.
	* arch-utils.c (no_op_reg_to_regnum): Likewise.
	* arch-utils.h (no_op_reg_to_regnum): Likewise.
	* arm-tdep.c (arm_dwarf_reg_to_regnum): Likewise.
	* cris-tdep.c (cris_dwarf2_reg_to_regnum): Likewise.
	* hppa-tdep.c (hppa64_dwarf_reg_to_regnum): Likewise.
	* ia64-tdep.c (ia64_dwarf_reg_to_regnum): Likewise.
	* m68k-tdep.c (m68k_dwarf_reg_to_regnum): Likewise.

20 files changed, 90 insertions, 67 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 739b286d9ec..deed0a22d68 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,32 @@
+2007-12-06  Markus Deuling  <deuling@de.ibm.com>
+
+	* gdbarch.sh (stab_reg_to_regnum, dwarf_reg_to_regnum)
+	( dwarf2_reg_to_regnum, sdb_reg_to_regnum, ecoff_reg_to_regnum): Add
+	gdbarch as parameter.
+	* gdbarch.{c,h}: Regenerate.
+
+	* xtensa-tdep.c (xtensa_reg_to_regnum): Add gdbarch as parameter.
+	Replace current_gdbarch by gdbarch.
+	* s390-tdep.c (s390_dwarf_reg_to_regnum): Likewise.
+	* rs6000-tdep.c (rs6000_stab_reg_to_regnum)
+	(rs6000_dwarf2_reg_to_regnum): Likewise.
+	* mips-tdep.c (mips_stab_reg_to_regnum)
+	(mips_dwarf_dwarf2_ecoff_reg_to_regnum): Likewise.
+	* mep-tdep.c (mep_debug_reg_to_regnum): Likewise.
+	* m32c-tdep.c (m32c_debug_info_reg_to_regnum): Likewise.
+	* i386-tdep.c (i386_dbx_reg_to_regnum)
+	(i386_svr4_reg_to_regnum): Likewise
+	* h8300-tdep.c (h8300s_dbg_reg_to_regnum)
+	(h8300_dbg_reg_to_regnum): Likewise.
+	* amd64-tdep.c (amd64_dwarf_reg_to_regnum): Likewise.
+	* arch-utils.c (no_op_reg_to_regnum): Likewise.
+	* arch-utils.h (no_op_reg_to_regnum): Likewise.
+	* arm-tdep.c (arm_dwarf_reg_to_regnum): Likewise.
+	* cris-tdep.c (cris_dwarf2_reg_to_regnum): Likewise.
+	* hppa-tdep.c (hppa64_dwarf_reg_to_regnum): Likewise.
+	* ia64-tdep.c (ia64_dwarf_reg_to_regnum): Likewise.
+	* m68k-tdep.c (m68k_dwarf_reg_to_regnum): Likewise.
+
 2007-12-06  Vladimir Prus  <vladimir@codesourcery.com>
 
 	Localize infrun use of remove_breakpoints.
diff --git a/gdb/amd64-tdep.c b/gdb/amd64-tdep.c
index b03320e6766..213f2d9c619 100644
--- a/gdb/amd64-tdep.c
+++ b/gdb/amd64-tdep.c
@@ -187,7 +187,7 @@ static const int amd64_dwarf_regmap_len =
    number used by GDB.  */
 
 static int
-amd64_dwarf_reg_to_regnum (int reg)
+amd64_dwarf_reg_to_regnum (struct gdbarch *gdbarch, int reg)
 {
   int regnum = -1;
 
diff --git a/gdb/arch-utils.c b/gdb/arch-utils.c
index 17d3ee7ccf5..eb6fb6093de 100644
--- a/gdb/arch-utils.c
+++ b/gdb/arch-utils.c
@@ -107,7 +107,7 @@ convert_from_func_ptr_addr_identity (struct gdbarch *gdbarch, CORE_ADDR addr,
 }
 
 int
-no_op_reg_to_regnum (int reg)
+no_op_reg_to_regnum (struct gdbarch *gdbarch, int reg)
 {
   return reg;
 }
diff --git a/gdb/arch-utils.h b/gdb/arch-utils.h
index 0cb3c1ea7ff..e7d29e0b8e2 100644
--- a/gdb/arch-utils.h
+++ b/gdb/arch-utils.h
@@ -41,7 +41,7 @@ extern gdbarch_convert_from_func_ptr_addr_ftype convert_from_func_ptr_addr_ident
 
 /* No-op conversion of reg to regnum. */
 
-extern int no_op_reg_to_regnum (int reg);
+extern int no_op_reg_to_regnum (struct gdbarch *gdbarch, int reg);
 
 /* Do nothing version of elf_make_msymbol_special. */
 
diff --git a/gdb/arm-tdep.c b/gdb/arm-tdep.c
index 1321dfceec2..db68a310bdb 100644
--- a/gdb/arm-tdep.c
+++ b/gdb/arm-tdep.c
@@ -1430,7 +1430,7 @@ arm_register_type (struct gdbarch *gdbarch, int regnum)
    number.  */
 
 static int
-arm_dwarf_reg_to_regnum (int reg)
+arm_dwarf_reg_to_regnum (struct gdbarch *gdbarch, int reg)
 {
   /* Core integer regs.  */
   if (reg >= 0 && reg <= 15)
diff --git a/gdb/cris-tdep.c b/gdb/cris-tdep.c
index 9e560cfac98..c0b814cab44 100644
--- a/gdb/cris-tdep.c
+++ b/gdb/cris-tdep.c
@@ -1847,7 +1847,7 @@ crisv32_register_name (struct gdbarch *gdbarch, int regno)
    number used by GDB.  */
 
 static int
-cris_dwarf2_reg_to_regnum (int reg)
+cris_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, int reg)
 {
   /* We need to re-map a couple of registers (SRP is 16 in Dwarf-2 register
      numbering, MOF is 18).
diff --git a/gdb/gdbarch.c b/gdb/gdbarch.c
index bfde68521a7..1f3afdd4156 100644
--- a/gdb/gdbarch.c
+++ b/gdb/gdbarch.c
@@ -275,11 +275,11 @@ struct gdbarch startup_gdbarch =
   -1,  /* pc_regnum */
   -1,  /* ps_regnum */
   0,  /* fp0_regnum */
-  0,  /* stab_reg_to_regnum */
-  0,  /* ecoff_reg_to_regnum */
-  0,  /* dwarf_reg_to_regnum */
-  0,  /* sdb_reg_to_regnum */
-  0,  /* dwarf2_reg_to_regnum */
+  no_op_reg_to_regnum,  /* stab_reg_to_regnum */
+  no_op_reg_to_regnum,  /* ecoff_reg_to_regnum */
+  no_op_reg_to_regnum,  /* dwarf_reg_to_regnum */
+  no_op_reg_to_regnum,  /* sdb_reg_to_regnum */
+  no_op_reg_to_regnum,  /* dwarf2_reg_to_regnum */
   0,  /* register_name */
   0,  /* register_type */
   0,  /* unwind_dummy_id */
@@ -1502,7 +1502,7 @@ gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, int stab_regnr)
   gdb_assert (gdbarch->stab_reg_to_regnum != NULL);
   if (gdbarch_debug >= 2)
     fprintf_unfiltered (gdb_stdlog, "gdbarch_stab_reg_to_regnum called\n");
-  return gdbarch->stab_reg_to_regnum (stab_regnr);
+  return gdbarch->stab_reg_to_regnum (gdbarch, stab_regnr);
 }
 
 void
@@ -1519,7 +1519,7 @@ gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, int ecoff_regnr)
   gdb_assert (gdbarch->ecoff_reg_to_regnum != NULL);
   if (gdbarch_debug >= 2)
     fprintf_unfiltered (gdb_stdlog, "gdbarch_ecoff_reg_to_regnum called\n");
-  return gdbarch->ecoff_reg_to_regnum (ecoff_regnr);
+  return gdbarch->ecoff_reg_to_regnum (gdbarch, ecoff_regnr);
 }
 
 void
@@ -1536,7 +1536,7 @@ gdbarch_dwarf_reg_to_regnum (struct gdbarch *gdbarch, int dwarf_regnr)
   gdb_assert (gdbarch->dwarf_reg_to_regnum != NULL);
   if (gdbarch_debug >= 2)
     fprintf_unfiltered (gdb_stdlog, "gdbarch_dwarf_reg_to_regnum called\n");
-  return gdbarch->dwarf_reg_to_regnum (dwarf_regnr);
+  return gdbarch->dwarf_reg_to_regnum (gdbarch, dwarf_regnr);
 }
 
 void
@@ -1553,7 +1553,7 @@ gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, int sdb_regnr)
   gdb_assert (gdbarch->sdb_reg_to_regnum != NULL);
   if (gdbarch_debug >= 2)
     fprintf_unfiltered (gdb_stdlog, "gdbarch_sdb_reg_to_regnum called\n");
-  return gdbarch->sdb_reg_to_regnum (sdb_regnr);
+  return gdbarch->sdb_reg_to_regnum (gdbarch, sdb_regnr);
 }
 
 void
@@ -1570,7 +1570,7 @@ gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, int dwarf2_regnr)
   gdb_assert (gdbarch->dwarf2_reg_to_regnum != NULL);
   if (gdbarch_debug >= 2)
     fprintf_unfiltered (gdb_stdlog, "gdbarch_dwarf2_reg_to_regnum called\n");
-  return gdbarch->dwarf2_reg_to_regnum (dwarf2_regnr);
+  return gdbarch->dwarf2_reg_to_regnum (gdbarch, dwarf2_regnr);
 }
 
 void
diff --git a/gdb/gdbarch.h b/gdb/gdbarch.h
index 0a62bfcb27b..da5d617298f 100644
--- a/gdb/gdbarch.h
+++ b/gdb/gdbarch.h
@@ -206,29 +206,29 @@ extern void set_gdbarch_fp0_regnum (struct gdbarch *gdbarch, int fp0_regnum);
 
 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */
 
-typedef int (gdbarch_stab_reg_to_regnum_ftype) (int stab_regnr);
+typedef int (gdbarch_stab_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int stab_regnr);
 extern int gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, int stab_regnr);
 extern void set_gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_stab_reg_to_regnum_ftype *stab_reg_to_regnum);
 
 /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */
 
-typedef int (gdbarch_ecoff_reg_to_regnum_ftype) (int ecoff_regnr);
+typedef int (gdbarch_ecoff_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int ecoff_regnr);
 extern int gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, int ecoff_regnr);
 extern void set_gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_ecoff_reg_to_regnum_ftype *ecoff_reg_to_regnum);
 
 /* Provide a default mapping from a DWARF register number to a gdb REGNUM. */
 
-typedef int (gdbarch_dwarf_reg_to_regnum_ftype) (int dwarf_regnr);
+typedef int (gdbarch_dwarf_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int dwarf_regnr);
 extern int gdbarch_dwarf_reg_to_regnum (struct gdbarch *gdbarch, int dwarf_regnr);
 extern void set_gdbarch_dwarf_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_dwarf_reg_to_regnum_ftype *dwarf_reg_to_regnum);
 
 /* Convert from an sdb register number to an internal gdb register number. */
 
-typedef int (gdbarch_sdb_reg_to_regnum_ftype) (int sdb_regnr);
+typedef int (gdbarch_sdb_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int sdb_regnr);
 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);
 
-typedef int (gdbarch_dwarf2_reg_to_regnum_ftype) (int dwarf2_regnr);
+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);
 extern void set_gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_dwarf2_reg_to_regnum_ftype *dwarf2_reg_to_regnum);
 
diff --git a/gdb/gdbarch.sh b/gdb/gdbarch.sh
index a241675d342..75a53596bfc 100755
--- a/gdb/gdbarch.sh
+++ b/gdb/gdbarch.sh
@@ -413,14 +413,14 @@ v:int:pc_regnum:::-1:-1::0
 v:int:ps_regnum:::-1:-1::0
 v:int:fp0_regnum:::0:-1::0
 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
-f:int:stab_reg_to_regnum:int stab_regnr:stab_regnr::no_op_reg_to_regnum::0
+m:int:stab_reg_to_regnum:int stab_regnr:stab_regnr::no_op_reg_to_regnum::0
 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
-f:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr::no_op_reg_to_regnum::0
+m:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr::no_op_reg_to_regnum::0
 # Provide a default mapping from a DWARF register number to a gdb REGNUM.
-f:int:dwarf_reg_to_regnum:int dwarf_regnr:dwarf_regnr::no_op_reg_to_regnum::0
+m:int:dwarf_reg_to_regnum:int dwarf_regnr:dwarf_regnr::no_op_reg_to_regnum::0
 # Convert from an sdb register number to an internal gdb register number.
-f:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr::no_op_reg_to_regnum::0
-f:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr::no_op_reg_to_regnum::0
+m:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr::no_op_reg_to_regnum::0
+m:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr::no_op_reg_to_regnum::0
 m:const char *:register_name:int regnr:regnr::0
 
 # Return the type of a register specified by the architecture.  Only
diff --git a/gdb/h8300-tdep.c b/gdb/h8300-tdep.c
index b83994adf11..cbef625b80f 100644
--- a/gdb/h8300-tdep.c
+++ b/gdb/h8300-tdep.c
@@ -1175,7 +1175,7 @@ h8300_pseudo_register_write (struct gdbarch *gdbarch,
 }
 
 static int
-h8300_dbg_reg_to_regnum (int regno)
+h8300_dbg_reg_to_regnum (struct gdbarch *gdbarch, int regno)
 {
   if (regno == E_CCR_REGNUM)
     return E_PSEUDO_CCR_REGNUM;
@@ -1183,7 +1183,7 @@ h8300_dbg_reg_to_regnum (int regno)
 }
 
 static int
-h8300s_dbg_reg_to_regnum (int regno)
+h8300s_dbg_reg_to_regnum (struct gdbarch *gdbarch, int regno)
 {
   if (regno == E_CCR_REGNUM)
     return E_PSEUDO_CCR_REGNUM;
diff --git a/gdb/hppa-tdep.c b/gdb/hppa-tdep.c
index a484ac885d8..f6bc4fcc33c 100644
--- a/gdb/hppa-tdep.c
+++ b/gdb/hppa-tdep.c
@@ -659,7 +659,7 @@ hppa64_register_name (struct gdbarch *gdbarch, int i)
 }
 
 static int
-hppa64_dwarf_reg_to_regnum (int reg)
+hppa64_dwarf_reg_to_regnum (struct gdbarch *gdbarch, int reg)
 {
   /* r0-r31 and sar map one-to-one.  */
   if (reg <= 32)
diff --git a/gdb/i386-tdep.c b/gdb/i386-tdep.c
index 710a01b5504..d1b43d3f415 100644
--- a/gdb/i386-tdep.c
+++ b/gdb/i386-tdep.c
@@ -167,7 +167,7 @@ i386_register_name (struct gdbarch *gdbarch, int regnum)
    number used by GDB.  */
 
 static int
-i386_dbx_reg_to_regnum (int reg)
+i386_dbx_reg_to_regnum (struct gdbarch *gdbarch, int reg)
 {
   /* This implements what GCC calls the "default" register map
      (dbx_register_map[]).  */
@@ -199,15 +199,14 @@ i386_dbx_reg_to_regnum (int reg)
     }
 
   /* This will hopefully provoke a warning.  */
-  return gdbarch_num_regs (current_gdbarch)
-	 + gdbarch_num_pseudo_regs (current_gdbarch);
+  return gdbarch_num_regs (gdbarch) + gdbarch_num_pseudo_regs (gdbarch);
 }
 
 /* Convert SVR4 register number REG to the appropriate register number
    used by GDB.  */
 
 static int
-i386_svr4_reg_to_regnum (int reg)
+i386_svr4_reg_to_regnum (struct gdbarch *gdbarch, int reg)
 {
   /* This implements the GCC register map that tries to be compatible
      with the SVR4 C compiler for DWARF (svr4_dbx_register_map[]).  */
@@ -227,7 +226,7 @@ i386_svr4_reg_to_regnum (int reg)
   else if (reg >= 21 && reg <= 36)
     {
       /* The SSE and MMX registers have the same numbers as with dbx.  */
-      return i386_dbx_reg_to_regnum (reg);
+      return i386_dbx_reg_to_regnum (gdbarch, reg);
     }
 
   switch (reg)
@@ -244,8 +243,7 @@ i386_svr4_reg_to_regnum (int reg)
     }
 
   /* This will hopefully provoke a warning.  */
-  return gdbarch_num_regs (current_gdbarch)
-	 + gdbarch_num_pseudo_regs (current_gdbarch);
+  return gdbarch_num_regs (gdbarch) + gdbarch_num_pseudo_regs (gdbarch);
 }
 
 #undef I387_ST0_REGNUM
diff --git a/gdb/ia64-tdep.c b/gdb/ia64-tdep.c
index 1d6743a7ae5..dd36ade10d8 100644
--- a/gdb/ia64-tdep.c
+++ b/gdb/ia64-tdep.c
@@ -313,7 +313,7 @@ ia64_register_type (struct gdbarch *arch, int reg)
 }
 
 static int
-ia64_dwarf_reg_to_regnum (int reg)
+ia64_dwarf_reg_to_regnum (struct gdbarch *gdbarch, int reg)
 {
   if (reg >= IA64_GR32_REGNUM && reg <= IA64_GR127_REGNUM)
     return V32_REGNUM + (reg - IA64_GR32_REGNUM);
diff --git a/gdb/m32c-tdep.c b/gdb/m32c-tdep.c
index 4c8e60e79f7..f8fce633461 100644
--- a/gdb/m32c-tdep.c
+++ b/gdb/m32c-tdep.c
@@ -248,9 +248,9 @@ m32c_register_sim_regno (struct gdbarch *gdbarch, int reg_nr)
 
 
 static int
-m32c_debug_info_reg_to_regnum (int reg_nr)
+m32c_debug_info_reg_to_regnum (struct gdbarch *gdbarch, int reg_nr)
 {
-  struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
+  struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
   if (0 <= reg_nr && reg_nr <= M32C_MAX_DWARF_REGNUM
       && tdep->dwarf_regs[reg_nr])
     return tdep->dwarf_regs[reg_nr]->num;
diff --git a/gdb/m68k-tdep.c b/gdb/m68k-tdep.c
index 39b70c59347..0fd40bf04be 100644
--- a/gdb/m68k-tdep.c
+++ b/gdb/m68k-tdep.c
@@ -527,7 +527,7 @@ m68k_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 /* Convert a dwarf or dwarf2 regnumber to a GDB regnum.  */
 
 static int
-m68k_dwarf_reg_to_regnum (int num)
+m68k_dwarf_reg_to_regnum (struct gdbarch *gdbarch, int num)
 {
   if (num < 8)
     /* d0..7 */
@@ -535,15 +535,14 @@ m68k_dwarf_reg_to_regnum (int num)
   else if (num < 16)
     /* a0..7 */
     return (num - 8) + M68K_A0_REGNUM;
-  else if (num < 24 && gdbarch_tdep (current_gdbarch)->fpregs_present)
+  else if (num < 24 && gdbarch_tdep (gdbarch)->fpregs_present)
     /* fp0..7 */
     return (num - 16) + M68K_FP0_REGNUM;
   else if (num == 25)
     /* pc */
     return M68K_PC_REGNUM;
   else
-    return gdbarch_num_regs (current_gdbarch)
-	   + gdbarch_num_pseudo_regs (current_gdbarch);
+    return gdbarch_num_regs (gdbarch) + gdbarch_num_pseudo_regs (gdbarch);
 }
 
 
diff --git a/gdb/mep-tdep.c b/gdb/mep-tdep.c
index b6038cc4832..5e0528c5ee1 100644
--- a/gdb/mep-tdep.c
+++ b/gdb/mep-tdep.c
@@ -785,7 +785,7 @@ mep_init_pseudoregister_maps (void)
 
 
 static int
-mep_debug_reg_to_regnum (int debug_reg)
+mep_debug_reg_to_regnum (struct gdbarch *gdbarch, int debug_reg)
 {
   /* The debug info uses the raw register numbers.  */
   return mep_raw_to_pseudo[debug_reg];
diff --git a/gdb/mips-tdep.c b/gdb/mips-tdep.c
index 8be42fe8670..d1f360dc684 100644
--- a/gdb/mips-tdep.c
+++ b/gdb/mips-tdep.c
@@ -5040,23 +5040,22 @@ mips_skip_trampoline_code (struct frame_info *frame, CORE_ADDR pc)
    [1 * gdbarch_num_regs .. 2 * gdbarch_num_regs) REGNUM.  */
 
 static int
-mips_stab_reg_to_regnum (int num)
+mips_stab_reg_to_regnum (struct gdbarch *gdbarch, int num)
 {
   int regnum;
   if (num >= 0 && num < 32)
     regnum = num;
   else if (num >= 38 && num < 70)
-    regnum = num + mips_regnum (current_gdbarch)->fp0 - 38;
+    regnum = num + mips_regnum (gdbarch)->fp0 - 38;
   else if (num == 70)
-    regnum = mips_regnum (current_gdbarch)->hi;
+    regnum = mips_regnum (gdbarch)->hi;
   else if (num == 71)
-    regnum = mips_regnum (current_gdbarch)->lo;
+    regnum = mips_regnum (gdbarch)->lo;
   else
     /* This will hopefully (eventually) provoke a warning.  Should
        we be calling complaint() here?  */
-    return gdbarch_num_regs (current_gdbarch)
-	   + gdbarch_num_pseudo_regs (current_gdbarch);
-  return gdbarch_num_regs (current_gdbarch) + regnum;
+    return gdbarch_num_regs (gdbarch) + gdbarch_num_pseudo_regs (gdbarch);
+  return gdbarch_num_regs (gdbarch) + regnum;
 }
 
 
@@ -5064,23 +5063,22 @@ mips_stab_reg_to_regnum (int num)
    gdbarch_num_regs .. 2 * gdbarch_num_regs) REGNUM.  */
 
 static int
-mips_dwarf_dwarf2_ecoff_reg_to_regnum (int num)
+mips_dwarf_dwarf2_ecoff_reg_to_regnum (struct gdbarch *gdbarch, int num)
 {
   int regnum;
   if (num >= 0 && num < 32)
     regnum = num;
   else if (num >= 32 && num < 64)
-    regnum = num + mips_regnum (current_gdbarch)->fp0 - 32;
+    regnum = num + mips_regnum (gdbarch)->fp0 - 32;
   else if (num == 64)
-    regnum = mips_regnum (current_gdbarch)->hi;
+    regnum = mips_regnum (gdbarch)->hi;
   else if (num == 65)
-    regnum = mips_regnum (current_gdbarch)->lo;
+    regnum = mips_regnum (gdbarch)->lo;
   else
     /* This will hopefully (eventually) provoke a warning.  Should we
        be calling complaint() here?  */
-    return gdbarch_num_regs (current_gdbarch)
-	   + gdbarch_num_pseudo_regs (current_gdbarch);
-  return gdbarch_num_regs (current_gdbarch) + regnum;
+    return gdbarch_num_regs (gdbarch) + gdbarch_num_pseudo_regs (gdbarch);
+  return gdbarch_num_regs (gdbarch) + regnum;
 }
 
 static int
diff --git a/gdb/rs6000-tdep.c b/gdb/rs6000-tdep.c
index 2d918250860..1f4a6d0de2b 100644
--- a/gdb/rs6000-tdep.c
+++ b/gdb/rs6000-tdep.c
@@ -2557,9 +2557,9 @@ e500_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache,
 
 /* Convert a DBX STABS register number to a GDB register number.  */
 static int
-rs6000_stab_reg_to_regnum (int num)
+rs6000_stab_reg_to_regnum (struct gdbarch *gdbarch, int num)
 {
-  struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
+  struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
 
   if (0 <= num && num <= 31)
     return tdep->ppc_gp0_regnum + num;
@@ -2599,9 +2599,9 @@ rs6000_stab_reg_to_regnum (int num)
 
 /* Convert a Dwarf 2 register number to a GDB register number.  */
 static int
-rs6000_dwarf2_reg_to_regnum (int num)
+rs6000_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, int num)
 {
-  struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
+  struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
 
   if (0 <= num && num <= 31)
     return tdep->ppc_gp0_regnum + num;
diff --git a/gdb/s390-tdep.c b/gdb/s390-tdep.c
index f8d5ac752cc..2fed6c02b2e 100644
--- a/gdb/s390-tdep.c
+++ b/gdb/s390-tdep.c
@@ -147,7 +147,7 @@ static int s390_dwarf_regmap[] =
 /* Convert DWARF register number REG to the appropriate register
    number used by GDB.  */
 static int
-s390_dwarf_reg_to_regnum (int reg)
+s390_dwarf_reg_to_regnum (struct gdbarch *gdbarch, int reg)
 {
   int regnum = -1;
 
diff --git a/gdb/xtensa-tdep.c b/gdb/xtensa-tdep.c
index 5b5fdaa542a..ae62be02f64 100644
--- a/gdb/xtensa-tdep.c
+++ b/gdb/xtensa-tdep.c
@@ -303,18 +303,17 @@ xtensa_register_type (struct gdbarch *gdbarch, int regnum)
    to n for An.  So, we only have to add the base number for A0.  */
 
 static int
-xtensa_reg_to_regnum (int regnum)
+xtensa_reg_to_regnum (struct gdbarch *gdbarch, int regnum)
 {
   int i;
 
   if (regnum >= 0 && regnum < 16)
-    return gdbarch_tdep (current_gdbarch)->a0_base + regnum;
+    return gdbarch_tdep (gdbarch)->a0_base + regnum;
 
   for (i = 0;
-       i < gdbarch_num_regs (current_gdbarch)
-	   + gdbarch_num_pseudo_regs (current_gdbarch);
+       i < gdbarch_num_regs (gdbarch) + gdbarch_num_pseudo_regs (gdbarch);
        i++)
-    if (regnum == gdbarch_tdep (current_gdbarch)->regmap[i].target_number)
+    if (regnum == gdbarch_tdep (gdbarch)->regmap[i].target_number)
       return i;
 
   internal_error (__FILE__, __LINE__,