* features/Makefile (WHICH): Add s390-linux32, s390-linux64,

	and s390x-linux64.
	(s390-linux32-expedite): Define.
	(s390-linux64-expedite): Define.
	(s390x-linux64-expedite): Define.
	* features/s390-acr.xml: New file.
	* features/s390-fpr.xml: New file.
	* features/s390-core32.xml: New file.
	* features/s390-core64.xml: New file.
	* features/s390x-core64.xml: New file.
	* features/s390-linux32.xml: New file.
	* features/s390-linux64.xml: New file.
	* features/s390x-linux64.xml: New file.
	* features/s390-linux32.c: New generated file.
	* features/s390-linux64.c: New generated file.
	* features/s390x-linux64.c: New generated file.

	* regformats/s390-linux32.dat: New generated file.
	* regformats/s390-linux64.dat: New generated file.
	* regformats/s390x-linux64.dat: New generated file.
	* regformats/reg-s390.dat: Remove.
	* regformats/reg-s390x.dat: Remove.

	* s390-nat.c: Include "auxv.h" and <elf.h>.
	(HWCAP_S390_HIGH_GPRS): Define if undefined.
	(s390_target_wordsize): New function.
	(s390_auxv_parse): Likewise.
	(s390_get_hwcap): Likewise.
	(s390_read_description): Likewise.
	(_initialize_s390_nat): Install s390_auxv_parse and
	s390_read_description.

	* s390-tdep.c: Include "features/s390-linux32.c",
	"features/s390-linux64.c", and "features/s390x-linux64.c".
	(struct gdbarch_tdep): Add gpr_full_regnum, pc_regnum, and cc_regnum.
	(s390_register_call_saved): New function.
	(s390_register_name): Remove.
	(s390_register_type): Remove.
	(s390_dwarf_regmap): Add lower half GPR pseudo DWARF CFI regnums.
	(s390_dwarf_reg_to_regnum): Remap GPR regnums to full GPRs.
	(s390_adjust_frame_regnum): Remap GPR regnums to lower halves for CFI.
	(s390_pseudo_register_name): New function.
	(s390_pseudo_register_type): New function.
	(s390_pseudo_register_read): Handle both 32-bit and 64-bit cases.
	Handle full GPR pesudos and varying pseudo register numbers.
	(s390_pseudo_register_write): Likewise
	(s390x_pseudo_register_read): Remove.
	(s390x_pseudo_register_write): Likewise.
	(s390_register_group): Remove.
	(s390_pseudo_register_group): New function.
	(s390_regmap_gregset): Add GPR upper halves.
	(s390x_regmap_gregset): Likewise.
	(s390_regmap_fpregset): Likewise.
	(s390_regmap_upper): New global variable.
	(s390_upper_regset): New global variable.
	(s390_upper_regset_sections): New global variable.
	(s390_regset_from_core_section): Handle GPR upper halves.
	(s390_core_read_description): New function.
	(s390_prologue_frame_unwind_cache): Set up ABI call-saved/clobbered
	register information.  Handle varying pseudo register numbers.
	(s390_backchain_frame_unwind_cache): Likewise.
	(s390_frame_prev_register): Unwind full GPRs to show lower halves.
	(s390_stub_frame_unwind_cache): Handle varying pseudo register numbers.
	(s390_sigtramp_frame_unwind_cache): Unwind PSWM and PSWA as well as
	PC and CC pseudos.  Unwind upper halves and full GPRs as appropriate.
	Handle varying pseudo register numbers.
	(s390_unwind_pc): Handle varying pseudo register numbers.
	(s390_dwarf2_prev_register): New function.
	(s390_dwarf2_frame_init_reg): Set up ABI call-saved/clobbered
	register information.  Handle varying pseudo register numbers.
	Install s390_dwarf2_prev_register to unwind full GPRs.
	(s390_gdbarch_init): Handle target descriptions.  Assign varying
	pseudo register numbers.  Install s390_adjust_frame_regnum.
	(_initialize_s390_tdep): Initialize target descriptions.

	* s390-tdep.h (S390_R0_UPPER_REGNUM .. S390_R15_UPPER_REGNUM): Define.
	(S390_NUM_REGS): Redefine to include upper half registers.
	(S390_PC_REGNUM, S390_CC_REGNUM): Remove.
	(S390_NUM_PSEUDO_REGS, S390_NUM_TOTAL_REGS): Likewise.
	(tdesc_s390_linux32): Add declaration.
	(tdesc_s390_linux64): Likewise.
	(tdesc_s390x_linux64): Likewise.

gdb/testsuite/
	* gdb.xml/tdesc-regs.exp: Support s390*-*-* targets.

gdbserver/
	* Makefile.in (clean): Remove new generated files.
	(reg-s390.o, reg-s390.c): Remove rules.
	(reg-s390x.o, reg-s390x.c): Likewise.
	(s390-linux32.o, s390-linux32.c): Add rules.
	(s390-linux64.o, s390-linux64.c): Likewise.
	(s390x-linux64.o, s390x-linux64.c): Likewise.
	* configure.srv (s390*-*-linux*): Update srv_regobj and srv_xmlfiles.
	* linux-s390-low.c: Include <elf.h>.
	(HWCAP_S390_HIGH_GPRS): Define if undefined.
	(init_registers_s390): Remove prototype.
	(init_registers_s390x): Likewise.
	(init_registers_s390_linux32): Add prototype.
	(init_registers_s390_linux64): Likewise.
	(init_registers_s390x_linux64): Likewise.
	(s390_num_regs_3264): New define.
	(s390_regmap_3264): New global variable.
	(s390_cannot_fetch_register): Remove obsolete check.
	(s390_cannot_store_register): Likewise.
	(s390_collect_ptrace_register): Handle upper/lower register halves.
	(s390_supply_ptrace_register): Likewise.
	(s390_fill_gregset): Update to register number changes.
	(s390_get_hwcap): New routine.
	(s390_arch_setup): Detect 32-bit process running on 64-bit system.
	Install appropriate regmap and register set.

1 files changed, 90 insertions, 0 deletions

diff --git a/gdb/features/s390-linux64.c b/gdb/features/s390-linux64.c
new file mode 100644
index 0000000..1e39fc3
--- /dev/null
+++ b/gdb/features/s390-linux64.c
@@ -0,0 +1,90 @@
+/* THIS FILE IS GENERATED.  Original: s390-linux64.xml */
+
+#include "defs.h"
+#include "target-descriptions.h"
+
+struct target_desc *tdesc_s390_linux64;
+static void
+initialize_tdesc_s390_linux64 (void)
+{
+  struct target_desc *result = allocate_target_description ();
+  struct tdesc_feature *feature;
+  struct tdesc_type *field_type, *type;
+
+  set_tdesc_architecture (result, bfd_scan_arch ("s390:31-bit"));
+
+  feature = tdesc_create_feature (result, "org.gnu.gdb.s390.core");
+  tdesc_create_reg (feature, "pswm", 0, 0, "psw", 32, "uint32");
+  tdesc_create_reg (feature, "pswa", 1, 0, "psw", 32, "uint32");
+  tdesc_create_reg (feature, "r0h", 2, 1, "upper", 32, "uint32");
+  tdesc_create_reg (feature, "r0l", 3, 1, "lower", 32, "uint32");
+  tdesc_create_reg (feature, "r1h", 4, 1, "upper", 32, "uint32");
+  tdesc_create_reg (feature, "r1l", 5, 1, "lower", 32, "uint32");
+  tdesc_create_reg (feature, "r2h", 6, 1, "upper", 32, "uint32");
+  tdesc_create_reg (feature, "r2l", 7, 1, "lower", 32, "uint32");
+  tdesc_create_reg (feature, "r3h", 8, 1, "upper", 32, "uint32");
+  tdesc_create_reg (feature, "r3l", 9, 1, "lower", 32, "uint32");
+  tdesc_create_reg (feature, "r4h", 10, 1, "upper", 32, "uint32");
+  tdesc_create_reg (feature, "r4l", 11, 1, "lower", 32, "uint32");
+  tdesc_create_reg (feature, "r5h", 12, 1, "upper", 32, "uint32");
+  tdesc_create_reg (feature, "r5l", 13, 1, "lower", 32, "uint32");
+  tdesc_create_reg (feature, "r6h", 14, 1, "upper", 32, "uint32");
+  tdesc_create_reg (feature, "r6l", 15, 1, "lower", 32, "uint32");
+  tdesc_create_reg (feature, "r7h", 16, 1, "upper", 32, "uint32");
+  tdesc_create_reg (feature, "r7l", 17, 1, "lower", 32, "uint32");
+  tdesc_create_reg (feature, "r8h", 18, 1, "upper", 32, "uint32");
+  tdesc_create_reg (feature, "r8l", 19, 1, "lower", 32, "uint32");
+  tdesc_create_reg (feature, "r9h", 20, 1, "upper", 32, "uint32");
+  tdesc_create_reg (feature, "r9l", 21, 1, "lower", 32, "uint32");
+  tdesc_create_reg (feature, "r10h", 22, 1, "upper", 32, "uint32");
+  tdesc_create_reg (feature, "r10l", 23, 1, "lower", 32, "uint32");
+  tdesc_create_reg (feature, "r11h", 24, 1, "upper", 32, "uint32");
+  tdesc_create_reg (feature, "r11l", 25, 1, "lower", 32, "uint32");
+  tdesc_create_reg (feature, "r12h", 26, 1, "upper", 32, "uint32");
+  tdesc_create_reg (feature, "r12l", 27, 1, "lower", 32, "uint32");
+  tdesc_create_reg (feature, "r13h", 28, 1, "upper", 32, "uint32");
+  tdesc_create_reg (feature, "r13l", 29, 1, "lower", 32, "uint32");
+  tdesc_create_reg (feature, "r14h", 30, 1, "upper", 32, "uint32");
+  tdesc_create_reg (feature, "r14l", 31, 1, "lower", 32, "uint32");
+  tdesc_create_reg (feature, "r15h", 32, 1, "upper", 32, "uint32");
+  tdesc_create_reg (feature, "r15l", 33, 1, "lower", 32, "uint32");
+
+  feature = tdesc_create_feature (result, "org.gnu.gdb.s390.acr");
+  tdesc_create_reg (feature, "acr0", 34, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr1", 35, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr2", 36, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr3", 37, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr4", 38, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr5", 39, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr6", 40, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr7", 41, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr8", 42, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr9", 43, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr10", 44, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr11", 45, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr12", 46, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr13", 47, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr14", 48, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr15", 49, 1, "access", 32, "uint32");
+
+  feature = tdesc_create_feature (result, "org.gnu.gdb.s390.fpr");
+  tdesc_create_reg (feature, "fpc", 50, 1, "float", 32, "uint32");
+  tdesc_create_reg (feature, "f0", 51, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f1", 52, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f2", 53, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f3", 54, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f4", 55, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f5", 56, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f6", 57, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f7", 58, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f8", 59, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f9", 60, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f10", 61, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f11", 62, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f12", 63, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f13", 64, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f14", 65, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f15", 66, 1, "float", 64, "ieee_double");
+
+  tdesc_s390_linux64 = result;
+}