diff options
Diffstat (limited to 'gdb/arc-linux-tdep.c')
| -rw-r--r-- | gdb/arc-linux-tdep.c | 141 |
1 files changed, 68 insertions, 73 deletions
diff --git a/gdb/arc-linux-tdep.c b/gdb/arc-linux-tdep.c index 947c2a3..41ef92d 100644 --- a/gdb/arc-linux-tdep.c +++ b/gdb/arc-linux-tdep.c @@ -50,9 +50,8 @@ here as well. */ static const int arc_linux_sc_reg_offsets[] = { /* R0 - R12. */ - REGOFF (22), REGOFF (21), REGOFF (20), REGOFF (19), - REGOFF (18), REGOFF (17), REGOFF (16), REGOFF (15), - REGOFF (14), REGOFF (13), REGOFF (12), REGOFF (11), + REGOFF (22), REGOFF (21), REGOFF (20), REGOFF (19), REGOFF (18), REGOFF (17), + REGOFF (16), REGOFF (15), REGOFF (14), REGOFF (13), REGOFF (12), REGOFF (11), REGOFF (10), /* R13 - R25. */ @@ -62,12 +61,12 @@ static const int arc_linux_sc_reg_offsets[] = { ARC_OFFSET_NO_REGISTER, ARC_OFFSET_NO_REGISTER, ARC_OFFSET_NO_REGISTER, ARC_OFFSET_NO_REGISTER, - REGOFF (9), /* R26 (GP) */ - REGOFF (8), /* FP */ - REGOFF (23), /* SP */ - ARC_OFFSET_NO_REGISTER, /* ILINK */ - ARC_OFFSET_NO_REGISTER, /* R30 */ - REGOFF (7), /* BLINK */ + REGOFF (9), /* R26 (GP) */ + REGOFF (8), /* FP */ + REGOFF (23), /* SP */ + ARC_OFFSET_NO_REGISTER, /* ILINK */ + ARC_OFFSET_NO_REGISTER, /* R30 */ + REGOFF (7), /* BLINK */ /* R32 - R59. */ ARC_OFFSET_NO_REGISTER, ARC_OFFSET_NO_REGISTER, ARC_OFFSET_NO_REGISTER, @@ -81,16 +80,16 @@ static const int arc_linux_sc_reg_offsets[] = { ARC_OFFSET_NO_REGISTER, ARC_OFFSET_NO_REGISTER, ARC_OFFSET_NO_REGISTER, ARC_OFFSET_NO_REGISTER, - REGOFF (4), /* LP_COUNT */ - ARC_OFFSET_NO_REGISTER, /* RESERVED */ - ARC_OFFSET_NO_REGISTER, /* LIMM */ - ARC_OFFSET_NO_REGISTER, /* PCL */ + REGOFF (4), /* LP_COUNT */ + ARC_OFFSET_NO_REGISTER, /* RESERVED */ + ARC_OFFSET_NO_REGISTER, /* LIMM */ + ARC_OFFSET_NO_REGISTER, /* PCL */ - REGOFF (6), /* PC */ - REGOFF (5), /* STATUS32 */ - REGOFF (2), /* LP_START */ - REGOFF (3), /* LP_END */ - REGOFF (1), /* BTA */ + REGOFF (6), /* PC */ + REGOFF (5), /* STATUS32 */ + REGOFF (2), /* LP_START */ + REGOFF (3), /* LP_END */ + REGOFF (1), /* BTA */ }; /* arc_linux_core_reg_offsets[i] is the offset in the .reg section of GDB @@ -104,23 +103,21 @@ static const int arc_linux_sc_reg_offsets[] = { here as well. */ static const int arc_linux_core_reg_offsets[] = { /* R0 - R12. */ - REGOFF (22), REGOFF (21), REGOFF (20), REGOFF (19), - REGOFF (18), REGOFF (17), REGOFF (16), REGOFF (15), - REGOFF (14), REGOFF (13), REGOFF (12), REGOFF (11), + REGOFF (22), REGOFF (21), REGOFF (20), REGOFF (19), REGOFF (18), REGOFF (17), + REGOFF (16), REGOFF (15), REGOFF (14), REGOFF (13), REGOFF (12), REGOFF (11), REGOFF (10), /* R13 - R25. */ - REGOFF (37), REGOFF (36), REGOFF (35), REGOFF (34), - REGOFF (33), REGOFF (32), REGOFF (31), REGOFF (30), - REGOFF (29), REGOFF (28), REGOFF (27), REGOFF (26), + REGOFF (37), REGOFF (36), REGOFF (35), REGOFF (34), REGOFF (33), REGOFF (32), + REGOFF (31), REGOFF (30), REGOFF (29), REGOFF (28), REGOFF (27), REGOFF (26), REGOFF (25), - REGOFF (9), /* R26 (GP) */ - REGOFF (8), /* FP */ - REGOFF (23), /* SP */ - ARC_OFFSET_NO_REGISTER, /* ILINK */ - ARC_OFFSET_NO_REGISTER, /* R30 */ - REGOFF (7), /* BLINK */ + REGOFF (9), /* R26 (GP) */ + REGOFF (8), /* FP */ + REGOFF (23), /* SP */ + ARC_OFFSET_NO_REGISTER, /* ILINK */ + ARC_OFFSET_NO_REGISTER, /* R30 */ + REGOFF (7), /* BLINK */ /* R32 - R59. */ ARC_OFFSET_NO_REGISTER, ARC_OFFSET_NO_REGISTER, ARC_OFFSET_NO_REGISTER, @@ -134,17 +131,17 @@ static const int arc_linux_core_reg_offsets[] = { ARC_OFFSET_NO_REGISTER, ARC_OFFSET_NO_REGISTER, ARC_OFFSET_NO_REGISTER, ARC_OFFSET_NO_REGISTER, - REGOFF (4), /* LP_COUNT */ - ARC_OFFSET_NO_REGISTER, /* RESERVED */ - ARC_OFFSET_NO_REGISTER, /* LIMM */ - ARC_OFFSET_NO_REGISTER, /* PCL */ - - REGOFF (39), /* PC */ - REGOFF (5), /* STATUS32 */ - REGOFF (2), /* LP_START */ - REGOFF (3), /* LP_END */ - REGOFF (1), /* BTA */ - REGOFF (6) /* ERET */ + REGOFF (4), /* LP_COUNT */ + ARC_OFFSET_NO_REGISTER, /* RESERVED */ + ARC_OFFSET_NO_REGISTER, /* LIMM */ + ARC_OFFSET_NO_REGISTER, /* PCL */ + + REGOFF (39), /* PC */ + REGOFF (5), /* STATUS32 */ + REGOFF (2), /* LP_START */ + REGOFF (3), /* LP_END */ + REGOFF (1), /* BTA */ + REGOFF (6) /* ERET */ }; /* Is THIS_FRAME a sigtramp function - the function that returns from @@ -164,15 +161,15 @@ arc_linux_is_sigtramp (frame_info_ptr this_frame) struct gdbarch *gdbarch = get_frame_arch (this_frame); CORE_ADDR pc = get_frame_pc (this_frame); - arc_linux_debug_printf ("pc=%s", paddress(gdbarch, pc)); + arc_linux_debug_printf ("pc=%s", paddress (gdbarch, pc)); static const gdb_byte insns_be_hs[] = { - 0x20, 0x8a, 0x12, 0xc2, /* mov r8,nr_rt_sigreturn */ - 0x78, 0x1e /* trap_s 0 */ + 0x20, 0x8a, 0x12, 0xc2, /* mov r8,nr_rt_sigreturn */ + 0x78, 0x1e /* trap_s 0 */ }; static const gdb_byte insns_be_700[] = { - 0x20, 0x8a, 0x12, 0xc2, /* mov r8,nr_rt_sigreturn */ - 0x22, 0x6f, 0x00, 0x3f /* swi */ + 0x20, 0x8a, 0x12, 0xc2, /* mov r8,nr_rt_sigreturn */ + 0x22, 0x6f, 0x00, 0x3f /* swi */ }; gdb_byte arc_sigtramp_insns[sizeof (insns_be_700)]; @@ -198,14 +195,14 @@ arc_linux_is_sigtramp (frame_info_ptr this_frame) 4-byte instruction or 2-byte. */ gdb_assert ((insns_sz % 2) == 0); for (int i = 0; i < insns_sz; i += 2) - std::swap (arc_sigtramp_insns[i], arc_sigtramp_insns[i+1]); + std::swap (arc_sigtramp_insns[i], arc_sigtramp_insns[i + 1]); } gdb_byte buf[insns_sz]; /* Read the memory at the PC. Since we are stopped, any breakpoint must have been removed. */ - if (!safe_frame_unwind_memory (this_frame, pc, {buf, insns_sz})) + if (!safe_frame_unwind_memory (this_frame, pc, { buf, insns_sz })) { /* Failed to unwind frame. */ return FALSE; @@ -216,7 +213,7 @@ arc_linux_is_sigtramp (frame_info_ptr this_frame) return TRUE; /* No - look one instruction earlier in the code... */ - if (!safe_frame_unwind_memory (this_frame, pc - 4, {buf, insns_sz})) + if (!safe_frame_unwind_memory (this_frame, pc - 4, { buf, insns_sz })) { /* Failed to unwind frame. */ return FALSE; @@ -310,7 +307,7 @@ arc_linux_cannot_store_register (struct gdbarch *gdbarch, int regnum) static const gdb_byte arc_linux_trap_s_be[] = { 0x78, 0x3e }; static const gdb_byte arc_linux_trap_s_le[] = { 0x3e, 0x78 }; -static const int trap_size = 2; /* Number of bytes to insert "trap". */ +static const int trap_size = 2; /* Number of bytes to insert "trap". */ /* Implement the "breakpoint_kind_from_pc" gdbarch method. */ @@ -323,14 +320,14 @@ arc_linux_breakpoint_kind_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr) /* Implement the "sw_breakpoint_from_kind" gdbarch method. */ static const gdb_byte * -arc_linux_sw_breakpoint_from_kind (struct gdbarch *gdbarch, - int kind, int *size) +arc_linux_sw_breakpoint_from_kind (struct gdbarch *gdbarch, int kind, + int *size) { gdb_assert (kind == trap_size); *size = kind; return ((gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG) - ? arc_linux_trap_s_be - : arc_linux_trap_s_le); + ? arc_linux_trap_s_be + : arc_linux_trap_s_le); } /* Check for an atomic sequence of instructions beginning with an @@ -358,7 +355,7 @@ arc_linux_sw_breakpoint_from_kind (struct gdbarch *gdbarch, static std::vector<CORE_ADDR> handle_atomic_sequence (arc_instruction insn, disassemble_info *di) { - const int atomic_seq_len = 24; /* Instruction sequence length. */ + const int atomic_seq_len = 24; /* Instruction sequence length. */ std::vector<CORE_ADDR> next_pcs; /* Sanity check. */ @@ -373,27 +370,27 @@ handle_atomic_sequence (arc_instruction insn, disassemble_info *di) for (int insn_count = 0; insn_count < atomic_seq_len; ++insn_count) { - arc_insn_decode (arc_insn_get_linear_next_pc (insn), - di, arc_delayed_print_insn, &insn); + arc_insn_decode (arc_insn_get_linear_next_pc (insn), di, + arc_delayed_print_insn, &insn); if (insn.insn_class == BRCC) - { - /* If more than one conditional branch is found, this is not + { + /* If more than one conditional branch is found, this is not the pattern we are interested in. */ - if (found_bc) + if (found_bc) break; found_bc = true; continue; - } + } /* This is almost a happy ending. */ if (insn.insn_class == SCOND) - { + { /* SCOND should match the LLOCK's data size. */ if (insn.data_size_mode == llock_data_size_mode) is_pattern_valid = true; break; - } + } } if (is_pattern_valid) @@ -546,8 +543,8 @@ supply_register (struct regcache *regcache, int regnum, const gdb_byte *buf) void arc_linux_supply_gregset (const struct regset *regset, - struct regcache *regcache, - int regnum, const void *gregs, size_t size) + struct regcache *regcache, int regnum, + const void *gregs, size_t size) { gdb_static_assert (ARC_LAST_REGNUM < ARRAY_SIZE (arc_linux_core_reg_offsets)); @@ -609,8 +606,8 @@ collect_register (const struct regcache *regcache, struct gdbarch *gdbarch, void arc_linux_collect_gregset (const struct regset *regset, - const struct regcache *regcache, - int regnum, void *gregs, size_t size) + const struct regcache *regcache, int regnum, + void *gregs, size_t size) { gdb_static_assert (ARC_LAST_REGNUM < ARRAY_SIZE (arc_linux_core_reg_offsets)); @@ -680,12 +677,10 @@ arc_linux_iterate_over_regset_sections (struct gdbarch *gdbarch, static const struct target_desc * arc_linux_core_read_description (struct gdbarch *gdbarch, - struct target_ops *target, - bfd *abfd) + struct target_ops *target, bfd *abfd) { arc_arch_features features - = arc_arch_features_create (abfd, - gdbarch_bfd_arch_info (gdbarch)->mach); + = arc_arch_features_create (abfd, gdbarch_bfd_arch_info (gdbarch)->mach); return arc_lookup_target_description (features); } @@ -727,8 +722,8 @@ arc_linux_init_osabi (struct gdbarch_info info, struct gdbarch *gdbarch) set_gdbarch_software_single_step (gdbarch, arc_linux_software_single_step); set_gdbarch_skip_trampoline_code (gdbarch, find_solib_trampoline_target); set_gdbarch_skip_solib_resolver (gdbarch, arc_linux_skip_solib_resolver); - set_gdbarch_iterate_over_regset_sections - (gdbarch, arc_linux_iterate_over_regset_sections); + set_gdbarch_iterate_over_regset_sections ( + gdbarch, arc_linux_iterate_over_regset_sections); set_gdbarch_core_read_description (gdbarch, arc_linux_core_read_description); /* GNU/Linux uses SVR4-style shared libraries, with 32-bit ints, longs |