#include "arch-utils.h"
#include "frame.h"
#include "inferior.h"
+#include "infrun.h"
#include "symtab.h"
#include "target.h"
#include "gdbcore.h"
#include "reggroups.h"
#include "regset.h"
#include "value.h"
-#include "gdb_assert.h"
#include "dis-asm.h"
#include "solib-svr4.h"
#include "prologue-value.h"
#include "linux-tdep.h"
#include "s390-linux-tdep.h"
#include "auxv.h"
+#include "xml-syscall.h"
#include "stap-probe.h"
#include "ax.h"
#include "features/s390x-linux64v2.c"
#include "features/s390x-te-linux64.c"
+#define XML_SYSCALL_FILENAME_S390 "syscalls/s390-linux.xml"
+#define XML_SYSCALL_FILENAME_S390X "syscalls/s390x-linux.xml"
+
/* The tdep structure. */
struct gdbarch_tdep
registers, even though we are otherwise a big-endian platform. */
static struct value *
-s390_value_from_register (struct type *type, int regnum,
- struct frame_info *frame)
+s390_value_from_register (struct gdbarch *gdbarch, struct type *type,
+ int regnum, struct frame_id frame_id)
{
- struct value *value = default_value_from_register (type, regnum, frame);
-
+ struct value *value = default_value_from_register (gdbarch, type,
+ regnum, frame_id);
check_typedef (type);
if (regnum >= S390_F0_REGNUM && regnum <= S390_F15_REGNUM
/* Maps for register sets. */
-const short s390_regmap_gregset[] =
- {
- 0x00, S390_PSWM_REGNUM,
- 0x04, S390_PSWA_REGNUM,
- 0x08, S390_R0_REGNUM,
- 0x0c, S390_R1_REGNUM,
- 0x10, S390_R2_REGNUM,
- 0x14, S390_R3_REGNUM,
- 0x18, S390_R4_REGNUM,
- 0x1c, S390_R5_REGNUM,
- 0x20, S390_R6_REGNUM,
- 0x24, S390_R7_REGNUM,
- 0x28, S390_R8_REGNUM,
- 0x2c, S390_R9_REGNUM,
- 0x30, S390_R10_REGNUM,
- 0x34, S390_R11_REGNUM,
- 0x38, S390_R12_REGNUM,
- 0x3c, S390_R13_REGNUM,
- 0x40, S390_R14_REGNUM,
- 0x44, S390_R15_REGNUM,
- 0x48, S390_A0_REGNUM,
- 0x4c, S390_A1_REGNUM,
- 0x50, S390_A2_REGNUM,
- 0x54, S390_A3_REGNUM,
- 0x58, S390_A4_REGNUM,
- 0x5c, S390_A5_REGNUM,
- 0x60, S390_A6_REGNUM,
- 0x64, S390_A7_REGNUM,
- 0x68, S390_A8_REGNUM,
- 0x6c, S390_A9_REGNUM,
- 0x70, S390_A10_REGNUM,
- 0x74, S390_A11_REGNUM,
- 0x78, S390_A12_REGNUM,
- 0x7c, S390_A13_REGNUM,
- 0x80, S390_A14_REGNUM,
- 0x84, S390_A15_REGNUM,
- 0x88, S390_ORIG_R2_REGNUM,
- -1, -1
- };
-
-const short s390x_regmap_gregset[] =
+static const struct regcache_map_entry s390_gregmap[] =
{
- 0x00, S390_PSWM_REGNUM,
- 0x08, S390_PSWA_REGNUM,
- 0x10, S390_R0_REGNUM,
- 0x18, S390_R1_REGNUM,
- 0x20, S390_R2_REGNUM,
- 0x28, S390_R3_REGNUM,
- 0x30, S390_R4_REGNUM,
- 0x38, S390_R5_REGNUM,
- 0x40, S390_R6_REGNUM,
- 0x48, S390_R7_REGNUM,
- 0x50, S390_R8_REGNUM,
- 0x58, S390_R9_REGNUM,
- 0x60, S390_R10_REGNUM,
- 0x68, S390_R11_REGNUM,
- 0x70, S390_R12_REGNUM,
- 0x78, S390_R13_REGNUM,
- 0x80, S390_R14_REGNUM,
- 0x88, S390_R15_REGNUM,
- 0x90, S390_A0_REGNUM,
- 0x94, S390_A1_REGNUM,
- 0x98, S390_A2_REGNUM,
- 0x9c, S390_A3_REGNUM,
- 0xa0, S390_A4_REGNUM,
- 0xa4, S390_A5_REGNUM,
- 0xa8, S390_A6_REGNUM,
- 0xac, S390_A7_REGNUM,
- 0xb0, S390_A8_REGNUM,
- 0xb4, S390_A9_REGNUM,
- 0xb8, S390_A10_REGNUM,
- 0xbc, S390_A11_REGNUM,
- 0xc0, S390_A12_REGNUM,
- 0xc4, S390_A13_REGNUM,
- 0xc8, S390_A14_REGNUM,
- 0xcc, S390_A15_REGNUM,
- 0x10, S390_R0_UPPER_REGNUM,
- 0x18, S390_R1_UPPER_REGNUM,
- 0x20, S390_R2_UPPER_REGNUM,
- 0x28, S390_R3_UPPER_REGNUM,
- 0x30, S390_R4_UPPER_REGNUM,
- 0x38, S390_R5_UPPER_REGNUM,
- 0x40, S390_R6_UPPER_REGNUM,
- 0x48, S390_R7_UPPER_REGNUM,
- 0x50, S390_R8_UPPER_REGNUM,
- 0x58, S390_R9_UPPER_REGNUM,
- 0x60, S390_R10_UPPER_REGNUM,
- 0x68, S390_R11_UPPER_REGNUM,
- 0x70, S390_R12_UPPER_REGNUM,
- 0x78, S390_R13_UPPER_REGNUM,
- 0x80, S390_R14_UPPER_REGNUM,
- 0x88, S390_R15_UPPER_REGNUM,
- 0xd0, S390_ORIG_R2_REGNUM,
- -1, -1
+ { 1, S390_PSWM_REGNUM },
+ { 1, S390_PSWA_REGNUM },
+ { 16, S390_R0_REGNUM },
+ { 16, S390_A0_REGNUM },
+ { 1, S390_ORIG_R2_REGNUM },
+ { 0 }
};
-const short s390_regmap_fpregset[] =
+static const struct regcache_map_entry s390_fpregmap[] =
{
- 0x00, S390_FPC_REGNUM,
- 0x08, S390_F0_REGNUM,
- 0x10, S390_F1_REGNUM,
- 0x18, S390_F2_REGNUM,
- 0x20, S390_F3_REGNUM,
- 0x28, S390_F4_REGNUM,
- 0x30, S390_F5_REGNUM,
- 0x38, S390_F6_REGNUM,
- 0x40, S390_F7_REGNUM,
- 0x48, S390_F8_REGNUM,
- 0x50, S390_F9_REGNUM,
- 0x58, S390_F10_REGNUM,
- 0x60, S390_F11_REGNUM,
- 0x68, S390_F12_REGNUM,
- 0x70, S390_F13_REGNUM,
- 0x78, S390_F14_REGNUM,
- 0x80, S390_F15_REGNUM,
- -1, -1
+ { 1, S390_FPC_REGNUM, 8 },
+ { 16, S390_F0_REGNUM, 8 },
+ { 0 }
};
-const short s390_regmap_upper[] =
+static const struct regcache_map_entry s390_regmap_upper[] =
{
- 0x00, S390_R0_UPPER_REGNUM,
- 0x04, S390_R1_UPPER_REGNUM,
- 0x08, S390_R2_UPPER_REGNUM,
- 0x0c, S390_R3_UPPER_REGNUM,
- 0x10, S390_R4_UPPER_REGNUM,
- 0x14, S390_R5_UPPER_REGNUM,
- 0x18, S390_R6_UPPER_REGNUM,
- 0x1c, S390_R7_UPPER_REGNUM,
- 0x20, S390_R8_UPPER_REGNUM,
- 0x24, S390_R9_UPPER_REGNUM,
- 0x28, S390_R10_UPPER_REGNUM,
- 0x2c, S390_R11_UPPER_REGNUM,
- 0x30, S390_R12_UPPER_REGNUM,
- 0x34, S390_R13_UPPER_REGNUM,
- 0x38, S390_R14_UPPER_REGNUM,
- 0x3c, S390_R15_UPPER_REGNUM,
- -1, -1
+ { 16, S390_R0_UPPER_REGNUM, 4 },
+ { 0 }
};
-const short s390_regmap_last_break[] =
+static const struct regcache_map_entry s390_regmap_last_break[] =
{
- 0x04, S390_LAST_BREAK_REGNUM,
- -1, -1
+ { 1, REGCACHE_MAP_SKIP, 4 },
+ { 1, S390_LAST_BREAK_REGNUM, 4 },
+ { 0 }
};
-const short s390x_regmap_last_break[] =
+static const struct regcache_map_entry s390x_regmap_last_break[] =
{
- 0x00, S390_LAST_BREAK_REGNUM,
- -1, -1
+ { 1, S390_LAST_BREAK_REGNUM, 8 },
+ { 0 }
};
-const short s390_regmap_system_call[] =
+static const struct regcache_map_entry s390_regmap_system_call[] =
{
- 0x00, S390_SYSTEM_CALL_REGNUM,
- -1, -1
+ { 1, S390_SYSTEM_CALL_REGNUM, 4 },
+ { 0 }
};
-const short s390_regmap_tdb[] =
+static const struct regcache_map_entry s390_regmap_tdb[] =
{
- 0x00, S390_TDB_DWORD0_REGNUM,
- 0x08, S390_TDB_ABORT_CODE_REGNUM,
- 0x10, S390_TDB_CONFLICT_TOKEN_REGNUM,
- 0x18, S390_TDB_ATIA_REGNUM,
- 0x80, S390_TDB_R0_REGNUM,
- 0x88, S390_TDB_R1_REGNUM,
- 0x90, S390_TDB_R2_REGNUM,
- 0x98, S390_TDB_R3_REGNUM,
- 0xa0, S390_TDB_R4_REGNUM,
- 0xa8, S390_TDB_R5_REGNUM,
- 0xb0, S390_TDB_R6_REGNUM,
- 0xb8, S390_TDB_R7_REGNUM,
- 0xc0, S390_TDB_R8_REGNUM,
- 0xc8, S390_TDB_R9_REGNUM,
- 0xd0, S390_TDB_R10_REGNUM,
- 0xd8, S390_TDB_R11_REGNUM,
- 0xe0, S390_TDB_R12_REGNUM,
- 0xe8, S390_TDB_R13_REGNUM,
- 0xf0, S390_TDB_R14_REGNUM,
- 0xf8, S390_TDB_R15_REGNUM,
- -1, -1
+ { 1, S390_TDB_DWORD0_REGNUM, 8 },
+ { 1, S390_TDB_ABORT_CODE_REGNUM, 8 },
+ { 1, S390_TDB_CONFLICT_TOKEN_REGNUM, 8 },
+ { 1, S390_TDB_ATIA_REGNUM, 8 },
+ { 12, REGCACHE_MAP_SKIP, 8 },
+ { 16, S390_TDB_R0_REGNUM, 8 },
+ { 0 }
};
-/* Supply register REGNUM from the register set REGSET to register cache
- REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
-static void
-s390_supply_regset (const struct regset *regset, struct regcache *regcache,
- int regnum, const void *regs, size_t len)
-{
- const short *map;
- for (map = regset->descr; map[0] >= 0; map += 2)
- if (regnum == -1 || regnum == map[1])
- regcache_raw_supply (regcache, map[1],
- regs ? (const char *)regs + map[0] : NULL);
-}
-
-/* Supply the TDB regset. Like s390_supply_regset, but invalidate the
- TDB registers unless the TDB format field is valid. */
+/* Supply the TDB regset. Like regcache_supply_regset, but invalidate
+ the TDB registers unless the TDB format field is valid. */
static void
s390_supply_tdb_regset (const struct regset *regset, struct regcache *regcache,
enum register_status ret;
int i;
- s390_supply_regset (regset, regcache, regnum, regs, len);
+ regcache_supply_regset (regset, regcache, regnum, regs, len);
ret = regcache_cooked_read_unsigned (regcache, S390_TDB_DWORD0_REGNUM, &tdw);
if (ret != REG_VALID || (tdw >> 56) != 1)
- s390_supply_regset (regset, regcache, regnum, NULL, len);
-}
-
-/* Collect register REGNUM from the register cache REGCACHE and store
- it in the buffer specified by REGS and LEN as described by the
- general-purpose register set REGSET. If REGNUM is -1, do this for
- all registers in REGSET. */
-static void
-s390_collect_regset (const struct regset *regset,
- const struct regcache *regcache,
- int regnum, void *regs, size_t len)
-{
- const short *map;
- for (map = regset->descr; map[0] >= 0; map += 2)
- if (regnum == -1 || regnum == map[1])
- regcache_raw_collect (regcache, map[1], (char *)regs + map[0]);
+ regcache_supply_regset (regset, regcache, regnum, NULL, len);
}
-static const struct regset s390_gregset = {
- s390_regmap_gregset,
- s390_supply_regset,
- s390_collect_regset
-};
-
-static const struct regset s390x_gregset = {
- s390x_regmap_gregset,
- s390_supply_regset,
- s390_collect_regset
+const struct regset s390_gregset = {
+ s390_gregmap,
+ regcache_supply_regset,
+ regcache_collect_regset
};
-static const struct regset s390_fpregset = {
- s390_regmap_fpregset,
- s390_supply_regset,
- s390_collect_regset
+const struct regset s390_fpregset = {
+ s390_fpregmap,
+ regcache_supply_regset,
+ regcache_collect_regset
};
static const struct regset s390_upper_regset = {
s390_regmap_upper,
- s390_supply_regset,
- s390_collect_regset
+ regcache_supply_regset,
+ regcache_collect_regset
};
-static const struct regset s390_last_break_regset = {
+const struct regset s390_last_break_regset = {
s390_regmap_last_break,
- s390_supply_regset,
- s390_collect_regset
+ regcache_supply_regset,
+ regcache_collect_regset
};
-static const struct regset s390x_last_break_regset = {
+const struct regset s390x_last_break_regset = {
s390x_regmap_last_break,
- s390_supply_regset,
- s390_collect_regset
+ regcache_supply_regset,
+ regcache_collect_regset
};
-static const struct regset s390_system_call_regset = {
+const struct regset s390_system_call_regset = {
s390_regmap_system_call,
- s390_supply_regset,
- s390_collect_regset
+ regcache_supply_regset,
+ regcache_collect_regset
};
-static const struct regset s390_tdb_regset = {
+const struct regset s390_tdb_regset = {
s390_regmap_tdb,
s390_supply_tdb_regset,
- s390_collect_regset
+ regcache_collect_regset
};
static struct core_regset_section s390_linux32_regset_sections[] =
op1_brxhg= 0xec, op2_brxhg= 0x44,
op_brxle = 0x85,
op1_brxlg= 0xec, op2_brxlg= 0x45,
+ op_svc = 0x0a,
};
if (target_read_memory (pc, sigreturn, 2))
return 0;
- if (sigreturn[0] != 0x0a /* svc */)
+ if (sigreturn[0] != op_svc)
return 0;
if (sigreturn[1] != 119 /* sigreturn */
s390_sigtramp_frame_sniffer
};
+/* Retrieve the syscall number at a ptrace syscall-stop. Return -1
+ upon error. */
+
+static LONGEST
+s390_linux_get_syscall_number (struct gdbarch *gdbarch,
+ ptid_t ptid)
+{
+ struct regcache *regs = get_thread_regcache (ptid);
+ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+ ULONGEST pc;
+ ULONGEST svc_number = -1;
+ unsigned opcode;
+
+ /* Assume that the PC points after the 2-byte SVC instruction. We
+ don't currently support SVC via EXECUTE. */
+ regcache_cooked_read_unsigned (regs, tdep->pc_regnum, &pc);
+ pc -= 2;
+ opcode = read_memory_unsigned_integer ((CORE_ADDR) pc, 1, byte_order);
+ if (opcode != op_svc)
+ return -1;
+
+ svc_number = read_memory_unsigned_integer ((CORE_ADDR) pc + 1, 1,
+ byte_order);
+ if (svc_number == 0)
+ regcache_cooked_read_unsigned (regs, S390_R1_REGNUM, &svc_number);
+
+ return svc_number;
+}
+
/* Frame base handling. */
set_gdbarch_frame_align (gdbarch, s390_frame_align);
set_gdbarch_return_value (gdbarch, s390_return_value);
+ /* Syscall handling. */
+ set_gdbarch_get_syscall_number (gdbarch, s390_linux_get_syscall_number);
+
/* Frame handling. */
dwarf2_frame_set_init_reg (gdbarch, s390_dwarf2_frame_init_reg);
dwarf2_frame_set_adjust_regnum (gdbarch, s390_adjust_frame_regnum);
set_solib_svr4_fetch_link_map_offsets
(gdbarch, svr4_ilp32_fetch_link_map_offsets);
+ set_xml_syscall_file_name (XML_SYSCALL_FILENAME_S390);
+
if (have_upper)
{
if (have_linux_v2)
break;
case ABI_LINUX_ZSERIES:
- tdep->gregset = &s390x_gregset;
+ tdep->gregset = &s390_gregset;
tdep->sizeof_gregset = s390x_sizeof_gregset;
tdep->fpregset = &s390_fpregset;
tdep->sizeof_fpregset = s390_sizeof_fpregset;
set_gdbarch_address_class_name_to_type_flags (gdbarch,
s390_address_class_name_to_type_flags);
+ set_xml_syscall_file_name (XML_SYSCALL_FILENAME_S390);
+
if (have_linux_v2)
set_gdbarch_core_regset_sections (gdbarch,
s390x_linux64v2_regset_sections);
projects / deliverable / binutils-gdb.git / blobdiff