X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=gdb%2Fsparc64-tdep.c;h=f01848ea1eaff292fabf8550a88cd2720bf3c5e7;hb=bb3f62fce7cb17a833ff77568eb620406d3bf1ad;hp=6038ceb1b4ecc3921b543914b5f5e47434bfc6f8;hpb=f700a3641b8311d5b1a84f35a5d1a636dcb33f38;p=deliverable%2Fbinutils-gdb.git diff --git a/gdb/sparc64-tdep.c b/gdb/sparc64-tdep.c index 6038ceb1b4..f01848ea1e 100644 --- a/gdb/sparc64-tdep.c +++ b/gdb/sparc64-tdep.c @@ -1,12 +1,12 @@ /* Target-dependent code for UltraSPARC. - Copyright 2003, 2004, 2005 Free Software Foundation, Inc. + Copyright (C) 2003-2013 Free Software Foundation, Inc. This file is part of GDB. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or + the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, @@ -15,12 +15,11 @@ GNU General Public License for more details. You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ + along with this program. If not, see . */ #include "defs.h" #include "arch-utils.h" +#include "dwarf2-frame.h" #include "floatformat.h" #include "frame.h" #include "frame-base.h" @@ -40,7 +39,7 @@ #include "sparc64-tdep.h" -/* This file implements the The SPARC 64-bit ABI as defined by the +/* This file implements the SPARC 64-bit ABI as defined by the section "Low-Level System Information" of the SPARC Compliance Definition (SCD) 2.4.1, which is the 64-bit System V psABI for SPARC. */ @@ -103,7 +102,31 @@ sparc64_floating_p (const struct type *type) return 0; } -/* Check whether TYPE is "Structure or Union". */ +/* Check whether TYPE is "Complex Floating". */ + +static int +sparc64_complex_floating_p (const struct type *type) +{ + switch (TYPE_CODE (type)) + { + case TYPE_CODE_COMPLEX: + { + int len = TYPE_LENGTH (type); + gdb_assert (len == 8 || len == 16 || len == 32); + } + return 1; + default: + break; + } + + return 0; +} + +/* Check whether TYPE is "Structure or Union". + + In terms of Ada subprogram calls, arrays are treated the same as + struct and union types. So this function also returns non-zero + for array types. */ static int sparc64_structure_or_union_p (const struct type *type) @@ -112,6 +135,7 @@ sparc64_structure_or_union_p (const struct type *type) { case TYPE_CODE_STRUCT: case TYPE_CODE_UNION: + case TYPE_CODE_ARRAY: return 1; default: break; @@ -119,245 +143,248 @@ sparc64_structure_or_union_p (const struct type *type) return 0; } + -/* Register information. */ +/* Construct types for ISA-specific registers. */ -struct sparc64_register_info +static struct type * +sparc64_pstate_type (struct gdbarch *gdbarch) { - char *name; - struct type **type; -}; + struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); -static struct sparc64_register_info sparc64_register_info[] = + if (!tdep->sparc64_pstate_type) + { + struct type *type; + + type = arch_flags_type (gdbarch, "builtin_type_sparc64_pstate", 8); + append_flags_type_flag (type, 0, "AG"); + append_flags_type_flag (type, 1, "IE"); + append_flags_type_flag (type, 2, "PRIV"); + append_flags_type_flag (type, 3, "AM"); + append_flags_type_flag (type, 4, "PEF"); + append_flags_type_flag (type, 5, "RED"); + append_flags_type_flag (type, 8, "TLE"); + append_flags_type_flag (type, 9, "CLE"); + append_flags_type_flag (type, 10, "PID0"); + append_flags_type_flag (type, 11, "PID1"); + + tdep->sparc64_pstate_type = type; + } + + return tdep->sparc64_pstate_type; +} + +static struct type * +sparc64_fsr_type (struct gdbarch *gdbarch) { - { "g0", &builtin_type_int64 }, - { "g1", &builtin_type_int64 }, - { "g2", &builtin_type_int64 }, - { "g3", &builtin_type_int64 }, - { "g4", &builtin_type_int64 }, - { "g5", &builtin_type_int64 }, - { "g6", &builtin_type_int64 }, - { "g7", &builtin_type_int64 }, - - { "o0", &builtin_type_int64 }, - { "o1", &builtin_type_int64 }, - { "o2", &builtin_type_int64 }, - { "o3", &builtin_type_int64 }, - { "o4", &builtin_type_int64 }, - { "o5", &builtin_type_int64 }, - { "sp", &builtin_type_void_data_ptr }, - { "o7", &builtin_type_int64 }, - - { "l0", &builtin_type_int64 }, - { "l1", &builtin_type_int64 }, - { "l2", &builtin_type_int64 }, - { "l3", &builtin_type_int64 }, - { "l4", &builtin_type_int64 }, - { "l5", &builtin_type_int64 }, - { "l6", &builtin_type_int64 }, - { "l7", &builtin_type_int64 }, - - { "i0", &builtin_type_int64 }, - { "i1", &builtin_type_int64 }, - { "i2", &builtin_type_int64 }, - { "i3", &builtin_type_int64 }, - { "i4", &builtin_type_int64 }, - { "i5", &builtin_type_int64 }, - { "fp", &builtin_type_void_data_ptr }, - { "i7", &builtin_type_int64 }, - - { "f0", &builtin_type_float }, - { "f1", &builtin_type_float }, - { "f2", &builtin_type_float }, - { "f3", &builtin_type_float }, - { "f4", &builtin_type_float }, - { "f5", &builtin_type_float }, - { "f6", &builtin_type_float }, - { "f7", &builtin_type_float }, - { "f8", &builtin_type_float }, - { "f9", &builtin_type_float }, - { "f10", &builtin_type_float }, - { "f11", &builtin_type_float }, - { "f12", &builtin_type_float }, - { "f13", &builtin_type_float }, - { "f14", &builtin_type_float }, - { "f15", &builtin_type_float }, - { "f16", &builtin_type_float }, - { "f17", &builtin_type_float }, - { "f18", &builtin_type_float }, - { "f19", &builtin_type_float }, - { "f20", &builtin_type_float }, - { "f21", &builtin_type_float }, - { "f22", &builtin_type_float }, - { "f23", &builtin_type_float }, - { "f24", &builtin_type_float }, - { "f25", &builtin_type_float }, - { "f26", &builtin_type_float }, - { "f27", &builtin_type_float }, - { "f28", &builtin_type_float }, - { "f29", &builtin_type_float }, - { "f30", &builtin_type_float }, - { "f31", &builtin_type_float }, - { "f32", &builtin_type_double }, - { "f34", &builtin_type_double }, - { "f36", &builtin_type_double }, - { "f38", &builtin_type_double }, - { "f40", &builtin_type_double }, - { "f42", &builtin_type_double }, - { "f44", &builtin_type_double }, - { "f46", &builtin_type_double }, - { "f48", &builtin_type_double }, - { "f50", &builtin_type_double }, - { "f52", &builtin_type_double }, - { "f54", &builtin_type_double }, - { "f56", &builtin_type_double }, - { "f58", &builtin_type_double }, - { "f60", &builtin_type_double }, - { "f62", &builtin_type_double }, - - { "pc", &builtin_type_void_func_ptr }, - { "npc", &builtin_type_void_func_ptr }, - - /* This raw register contains the contents of %cwp, %pstate, %asi - and %ccr as laid out in a %tstate register. */ - /* FIXME: Give it a name until we start using register groups. */ - { "state", &builtin_type_int64 }, + struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); - { "fsr", &builtin_type_int64 }, - { "fprs", &builtin_type_int64 }, + if (!tdep->sparc64_fsr_type) + { + struct type *type; + + type = arch_flags_type (gdbarch, "builtin_type_sparc64_fsr", 8); + append_flags_type_flag (type, 0, "NXA"); + append_flags_type_flag (type, 1, "DZA"); + append_flags_type_flag (type, 2, "UFA"); + append_flags_type_flag (type, 3, "OFA"); + append_flags_type_flag (type, 4, "NVA"); + append_flags_type_flag (type, 5, "NXC"); + append_flags_type_flag (type, 6, "DZC"); + append_flags_type_flag (type, 7, "UFC"); + append_flags_type_flag (type, 8, "OFC"); + append_flags_type_flag (type, 9, "NVC"); + append_flags_type_flag (type, 22, "NS"); + append_flags_type_flag (type, 23, "NXM"); + append_flags_type_flag (type, 24, "DZM"); + append_flags_type_flag (type, 25, "UFM"); + append_flags_type_flag (type, 26, "OFM"); + append_flags_type_flag (type, 27, "NVM"); + + tdep->sparc64_fsr_type = type; + } - /* "Although Y is a 64-bit register, its high-order 32 bits are - reserved and always read as 0." */ - { "y", &builtin_type_int64 } + return tdep->sparc64_fsr_type; +} + +static struct type * +sparc64_fprs_type (struct gdbarch *gdbarch) +{ + struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); + + if (!tdep->sparc64_fprs_type) + { + struct type *type; + + type = arch_flags_type (gdbarch, "builtin_type_sparc64_fprs", 8); + append_flags_type_flag (type, 0, "DL"); + append_flags_type_flag (type, 1, "DU"); + append_flags_type_flag (type, 2, "FEF"); + + tdep->sparc64_fprs_type = type; + } + + return tdep->sparc64_fprs_type; +} + + +/* Register information. */ + +static const char *sparc64_register_names[] = +{ + "g0", "g1", "g2", "g3", "g4", "g5", "g6", "g7", + "o0", "o1", "o2", "o3", "o4", "o5", "sp", "o7", + "l0", "l1", "l2", "l3", "l4", "l5", "l6", "l7", + "i0", "i1", "i2", "i3", "i4", "i5", "fp", "i7", + + "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", + "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", + "f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23", + "f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31", + "f32", "f34", "f36", "f38", "f40", "f42", "f44", "f46", + "f48", "f50", "f52", "f54", "f56", "f58", "f60", "f62", + + "pc", "npc", + + /* FIXME: Give "state" a name until we start using register groups. */ + "state", + "fsr", + "fprs", + "y", }; /* Total number of registers. */ -#define SPARC64_NUM_REGS ARRAY_SIZE (sparc64_register_info) +#define SPARC64_NUM_REGS ARRAY_SIZE (sparc64_register_names) /* We provide the aliases %d0..%d62 and %q0..%q60 for the floating registers as "psuedo" registers. */ -static struct sparc64_register_info sparc64_pseudo_register_info[] = +static const char *sparc64_pseudo_register_names[] = { - { "cwp", &builtin_type_int64 }, - { "pstate", &builtin_type_int64 }, - { "asi", &builtin_type_int64 }, - { "ccr", &builtin_type_int64 }, - - { "d0", &builtin_type_double }, - { "d2", &builtin_type_double }, - { "d4", &builtin_type_double }, - { "d6", &builtin_type_double }, - { "d8", &builtin_type_double }, - { "d10", &builtin_type_double }, - { "d12", &builtin_type_double }, - { "d14", &builtin_type_double }, - { "d16", &builtin_type_double }, - { "d18", &builtin_type_double }, - { "d20", &builtin_type_double }, - { "d22", &builtin_type_double }, - { "d24", &builtin_type_double }, - { "d26", &builtin_type_double }, - { "d28", &builtin_type_double }, - { "d30", &builtin_type_double }, - { "d32", &builtin_type_double }, - { "d34", &builtin_type_double }, - { "d36", &builtin_type_double }, - { "d38", &builtin_type_double }, - { "d40", &builtin_type_double }, - { "d42", &builtin_type_double }, - { "d44", &builtin_type_double }, - { "d46", &builtin_type_double }, - { "d48", &builtin_type_double }, - { "d50", &builtin_type_double }, - { "d52", &builtin_type_double }, - { "d54", &builtin_type_double }, - { "d56", &builtin_type_double }, - { "d58", &builtin_type_double }, - { "d60", &builtin_type_double }, - { "d62", &builtin_type_double }, - - { "q0", &builtin_type_long_double }, - { "q4", &builtin_type_long_double }, - { "q8", &builtin_type_long_double }, - { "q12", &builtin_type_long_double }, - { "q16", &builtin_type_long_double }, - { "q20", &builtin_type_long_double }, - { "q24", &builtin_type_long_double }, - { "q28", &builtin_type_long_double }, - { "q32", &builtin_type_long_double }, - { "q36", &builtin_type_long_double }, - { "q40", &builtin_type_long_double }, - { "q44", &builtin_type_long_double }, - { "q48", &builtin_type_long_double }, - { "q52", &builtin_type_long_double }, - { "q56", &builtin_type_long_double }, - { "q60", &builtin_type_long_double } + "cwp", "pstate", "asi", "ccr", + + "d0", "d2", "d4", "d6", "d8", "d10", "d12", "d14", + "d16", "d18", "d20", "d22", "d24", "d26", "d28", "d30", + "d32", "d34", "d36", "d38", "d40", "d42", "d44", "d46", + "d48", "d50", "d52", "d54", "d56", "d58", "d60", "d62", + + "q0", "q4", "q8", "q12", "q16", "q20", "q24", "q28", + "q32", "q36", "q40", "q44", "q48", "q52", "q56", "q60", }; /* Total number of pseudo registers. */ -#define SPARC64_NUM_PSEUDO_REGS ARRAY_SIZE (sparc64_pseudo_register_info) +#define SPARC64_NUM_PSEUDO_REGS ARRAY_SIZE (sparc64_pseudo_register_names) /* Return the name of register REGNUM. */ static const char * -sparc64_register_name (int regnum) +sparc64_register_name (struct gdbarch *gdbarch, int regnum) { if (regnum >= 0 && regnum < SPARC64_NUM_REGS) - return sparc64_register_info[regnum].name; + return sparc64_register_names[regnum]; if (regnum >= SPARC64_NUM_REGS && regnum < SPARC64_NUM_REGS + SPARC64_NUM_PSEUDO_REGS) - return sparc64_pseudo_register_info[regnum - SPARC64_NUM_REGS].name; + return sparc64_pseudo_register_names[regnum - SPARC64_NUM_REGS]; return NULL; } /* Return the GDB type object for the "standard" data type of data in - register REGNUM. */ + register REGNUM. */ static struct type * sparc64_register_type (struct gdbarch *gdbarch, int regnum) { - if (regnum >= SPARC64_NUM_REGS - && regnum < SPARC64_NUM_REGS + SPARC64_NUM_PSEUDO_REGS) - return *sparc64_pseudo_register_info[regnum - SPARC64_NUM_REGS].type; - - gdb_assert (regnum >= 0 && regnum < SPARC64_NUM_REGS); - return *sparc64_register_info[regnum].type; + /* Raw registers. */ + + if (regnum == SPARC_SP_REGNUM || regnum == SPARC_FP_REGNUM) + return builtin_type (gdbarch)->builtin_data_ptr; + if (regnum >= SPARC_G0_REGNUM && regnum <= SPARC_I7_REGNUM) + return builtin_type (gdbarch)->builtin_int64; + if (regnum >= SPARC_F0_REGNUM && regnum <= SPARC_F31_REGNUM) + return builtin_type (gdbarch)->builtin_float; + if (regnum >= SPARC64_F32_REGNUM && regnum <= SPARC64_F62_REGNUM) + return builtin_type (gdbarch)->builtin_double; + if (regnum == SPARC64_PC_REGNUM || regnum == SPARC64_NPC_REGNUM) + return builtin_type (gdbarch)->builtin_func_ptr; + /* This raw register contains the contents of %cwp, %pstate, %asi + and %ccr as laid out in a %tstate register. */ + if (regnum == SPARC64_STATE_REGNUM) + return builtin_type (gdbarch)->builtin_int64; + if (regnum == SPARC64_FSR_REGNUM) + return sparc64_fsr_type (gdbarch); + if (regnum == SPARC64_FPRS_REGNUM) + return sparc64_fprs_type (gdbarch); + /* "Although Y is a 64-bit register, its high-order 32 bits are + reserved and always read as 0." */ + if (regnum == SPARC64_Y_REGNUM) + return builtin_type (gdbarch)->builtin_int64; + + /* Pseudo registers. */ + + if (regnum == SPARC64_CWP_REGNUM) + return builtin_type (gdbarch)->builtin_int64; + if (regnum == SPARC64_PSTATE_REGNUM) + return sparc64_pstate_type (gdbarch); + if (regnum == SPARC64_ASI_REGNUM) + return builtin_type (gdbarch)->builtin_int64; + if (regnum == SPARC64_CCR_REGNUM) + return builtin_type (gdbarch)->builtin_int64; + if (regnum >= SPARC64_D0_REGNUM && regnum <= SPARC64_D62_REGNUM) + return builtin_type (gdbarch)->builtin_double; + if (regnum >= SPARC64_Q0_REGNUM && regnum <= SPARC64_Q60_REGNUM) + return builtin_type (gdbarch)->builtin_long_double; + + internal_error (__FILE__, __LINE__, _("invalid regnum")); } -static void +static enum register_status sparc64_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache, - int regnum, void *buf) + int regnum, gdb_byte *buf) { + enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); + enum register_status status; + gdb_assert (regnum >= SPARC64_NUM_REGS); if (regnum >= SPARC64_D0_REGNUM && regnum <= SPARC64_D30_REGNUM) { regnum = SPARC_F0_REGNUM + 2 * (regnum - SPARC64_D0_REGNUM); - regcache_raw_read (regcache, regnum, buf); - regcache_raw_read (regcache, regnum + 1, ((char *)buf) + 4); + status = regcache_raw_read (regcache, regnum, buf); + if (status == REG_VALID) + status = regcache_raw_read (regcache, regnum + 1, buf + 4); + return status; } else if (regnum >= SPARC64_D32_REGNUM && regnum <= SPARC64_D62_REGNUM) { regnum = SPARC64_F32_REGNUM + (regnum - SPARC64_D32_REGNUM); - regcache_raw_read (regcache, regnum, buf); + return regcache_raw_read (regcache, regnum, buf); } else if (regnum >= SPARC64_Q0_REGNUM && regnum <= SPARC64_Q28_REGNUM) { regnum = SPARC_F0_REGNUM + 4 * (regnum - SPARC64_Q0_REGNUM); - regcache_raw_read (regcache, regnum, buf); - regcache_raw_read (regcache, regnum + 1, ((char *)buf) + 4); - regcache_raw_read (regcache, regnum + 2, ((char *)buf) + 8); - regcache_raw_read (regcache, regnum + 3, ((char *)buf) + 12); + + status = regcache_raw_read (regcache, regnum, buf); + if (status == REG_VALID) + status = regcache_raw_read (regcache, regnum + 1, buf + 4); + if (status == REG_VALID) + status = regcache_raw_read (regcache, regnum + 2, buf + 8); + if (status == REG_VALID) + status = regcache_raw_read (regcache, regnum + 3, buf + 12); + + return status; } else if (regnum >= SPARC64_Q32_REGNUM && regnum <= SPARC64_Q60_REGNUM) { regnum = SPARC64_F32_REGNUM + 2 * (regnum - SPARC64_Q32_REGNUM); - regcache_raw_read (regcache, regnum, buf); - regcache_raw_read (regcache, regnum + 1, ((char *)buf) + 8); + + status = regcache_raw_read (regcache, regnum, buf); + if (status == REG_VALID) + status = regcache_raw_read (regcache, regnum + 1, buf + 8); + + return status; } else if (regnum == SPARC64_CWP_REGNUM || regnum == SPARC64_PSTATE_REGNUM @@ -366,7 +393,10 @@ sparc64_pseudo_register_read (struct gdbarch *gdbarch, { ULONGEST state; - regcache_raw_read_unsigned (regcache, SPARC64_STATE_REGNUM, &state); + status = regcache_raw_read_unsigned (regcache, SPARC64_STATE_REGNUM, &state); + if (status != REG_VALID) + return status; + switch (regnum) { case SPARC64_CWP_REGNUM: @@ -382,22 +412,25 @@ sparc64_pseudo_register_read (struct gdbarch *gdbarch, state = (state >> 32) & ((1 << 8) - 1); break; } - store_unsigned_integer (buf, 8, state); + store_unsigned_integer (buf, 8, byte_order, state); } + + return REG_VALID; } static void sparc64_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache, - int regnum, const void *buf) + int regnum, const gdb_byte *buf) { + enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); gdb_assert (regnum >= SPARC64_NUM_REGS); if (regnum >= SPARC64_D0_REGNUM && regnum <= SPARC64_D30_REGNUM) { regnum = SPARC_F0_REGNUM + 2 * (regnum - SPARC64_D0_REGNUM); regcache_raw_write (regcache, regnum, buf); - regcache_raw_write (regcache, regnum + 1, ((const char *)buf) + 4); + regcache_raw_write (regcache, regnum + 1, buf + 4); } else if (regnum >= SPARC64_D32_REGNUM && regnum <= SPARC64_D62_REGNUM) { @@ -408,15 +441,15 @@ sparc64_pseudo_register_write (struct gdbarch *gdbarch, { regnum = SPARC_F0_REGNUM + 4 * (regnum - SPARC64_Q0_REGNUM); regcache_raw_write (regcache, regnum, buf); - regcache_raw_write (regcache, regnum + 1, ((const char *)buf) + 4); - regcache_raw_write (regcache, regnum + 2, ((const char *)buf) + 8); - regcache_raw_write (regcache, regnum + 3, ((const char *)buf) + 12); + regcache_raw_write (regcache, regnum + 1, buf + 4); + regcache_raw_write (regcache, regnum + 2, buf + 8); + regcache_raw_write (regcache, regnum + 3, buf + 12); } else if (regnum >= SPARC64_Q32_REGNUM && regnum <= SPARC64_Q60_REGNUM) { regnum = SPARC64_F32_REGNUM + 2 * (regnum - SPARC64_Q32_REGNUM); regcache_raw_write (regcache, regnum, buf); - regcache_raw_write (regcache, regnum + 1, ((const char *)buf) + 8); + regcache_raw_write (regcache, regnum + 1, buf + 8); } else if (regnum == SPARC64_CWP_REGNUM || regnum == SPARC64_PSTATE_REGNUM @@ -426,7 +459,7 @@ sparc64_pseudo_register_write (struct gdbarch *gdbarch, ULONGEST state, bits; regcache_raw_read_unsigned (regcache, SPARC64_STATE_REGNUM, &state); - bits = extract_unsigned_integer (buf, 8); + bits = extract_unsigned_integer (buf, 8, byte_order); switch (regnum) { case SPARC64_CWP_REGNUM: @@ -451,7 +484,7 @@ sparc64_pseudo_register_write (struct gdbarch *gdbarch, START_PC. */ static CORE_ADDR -sparc64_skip_prologue (CORE_ADDR start_pc) +sparc64_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR start_pc) { struct symtab_and_line sal; CORE_ADDR func_start, func_end; @@ -468,23 +501,24 @@ sparc64_skip_prologue (CORE_ADDR start_pc) return sal.end; } - return sparc_analyze_prologue (start_pc, 0xffffffffffffffffULL, &cache); + return sparc_analyze_prologue (gdbarch, start_pc, 0xffffffffffffffffULL, + &cache); } /* Normal frames. */ static struct sparc_frame_cache * -sparc64_frame_cache (struct frame_info *next_frame, void **this_cache) +sparc64_frame_cache (struct frame_info *this_frame, void **this_cache) { - return sparc_frame_cache (next_frame, this_cache); + return sparc_frame_cache (this_frame, this_cache); } static void -sparc64_frame_this_id (struct frame_info *next_frame, void **this_cache, +sparc64_frame_this_id (struct frame_info *this_frame, void **this_cache, struct frame_id *this_id) { struct sparc_frame_cache *cache = - sparc64_frame_cache (next_frame, this_cache); + sparc64_frame_cache (this_frame, this_cache); /* This marks the outermost frame. */ if (cache->base == 0) @@ -493,107 +527,74 @@ sparc64_frame_this_id (struct frame_info *next_frame, void **this_cache, (*this_id) = frame_id_build (cache->base, cache->pc); } -static void -sparc64_frame_prev_register (struct frame_info *next_frame, void **this_cache, - int regnum, int *optimizedp, - enum lval_type *lvalp, CORE_ADDR *addrp, - int *realnump, void *valuep) +static struct value * +sparc64_frame_prev_register (struct frame_info *this_frame, void **this_cache, + int regnum) { + struct gdbarch *gdbarch = get_frame_arch (this_frame); struct sparc_frame_cache *cache = - sparc64_frame_cache (next_frame, this_cache); + sparc64_frame_cache (this_frame, this_cache); if (regnum == SPARC64_PC_REGNUM || regnum == SPARC64_NPC_REGNUM) { - *optimizedp = 0; - *lvalp = not_lval; - *addrp = 0; - *realnump = -1; - if (valuep) - { - CORE_ADDR pc = (regnum == SPARC64_NPC_REGNUM) ? 4 : 0; + CORE_ADDR pc = (regnum == SPARC64_NPC_REGNUM) ? 4 : 0; - regnum = cache->frameless_p ? SPARC_O7_REGNUM : SPARC_I7_REGNUM; - pc += frame_unwind_register_unsigned (next_frame, regnum) + 8; - store_unsigned_integer (valuep, 8, pc); - } - return; + regnum = + (cache->copied_regs_mask & 0x80) ? SPARC_I7_REGNUM : SPARC_O7_REGNUM; + pc += get_frame_register_unsigned (this_frame, regnum) + 8; + return frame_unwind_got_constant (this_frame, regnum, pc); } /* Handle StackGhost. */ { - ULONGEST wcookie = sparc_fetch_wcookie (); + ULONGEST wcookie = sparc_fetch_wcookie (gdbarch); if (wcookie != 0 && !cache->frameless_p && regnum == SPARC_I7_REGNUM) { - *optimizedp = 0; - *lvalp = not_lval; - *addrp = 0; - *realnump = -1; - if (valuep) - { - CORE_ADDR addr = cache->base + (regnum - SPARC_L0_REGNUM) * 8; - ULONGEST i7; - - /* Read the value in from memory. */ - i7 = get_frame_memory_unsigned (next_frame, addr, 8); - store_unsigned_integer (valuep, 8, i7 ^ wcookie); - } - return; + CORE_ADDR addr = cache->base + (regnum - SPARC_L0_REGNUM) * 8; + ULONGEST i7; + + /* Read the value in from memory. */ + i7 = get_frame_memory_unsigned (this_frame, addr, 8); + return frame_unwind_got_constant (this_frame, regnum, i7 ^ wcookie); } } - /* The previous frame's `local' and `in' registers have been saved + /* The previous frame's `local' and `in' registers may have been saved in the register save area. */ - if (!cache->frameless_p - && regnum >= SPARC_L0_REGNUM && regnum <= SPARC_I7_REGNUM) + if (regnum >= SPARC_L0_REGNUM && regnum <= SPARC_I7_REGNUM + && (cache->saved_regs_mask & (1 << (regnum - SPARC_L0_REGNUM)))) { - *optimizedp = 0; - *lvalp = lval_memory; - *addrp = cache->base + (regnum - SPARC_L0_REGNUM) * 8; - *realnump = -1; - if (valuep) - { - struct gdbarch *gdbarch = get_frame_arch (next_frame); + CORE_ADDR addr = cache->base + (regnum - SPARC_L0_REGNUM) * 8; - /* Read the value in from memory. */ - read_memory (*addrp, valuep, register_size (gdbarch, regnum)); - } - return; + return frame_unwind_got_memory (this_frame, regnum, addr); } - /* The previous frame's `out' registers are accessable as the - current frame's `in' registers. */ - if (!cache->frameless_p - && regnum >= SPARC_O0_REGNUM && regnum <= SPARC_O7_REGNUM) + /* The previous frame's `out' registers may be accessible as the current + frame's `in' registers. */ + if (regnum >= SPARC_O0_REGNUM && regnum <= SPARC_O7_REGNUM + && (cache->copied_regs_mask & (1 << (regnum - SPARC_O0_REGNUM)))) regnum += (SPARC_I0_REGNUM - SPARC_O0_REGNUM); - *optimizedp = 0; - *lvalp = lval_register; - *addrp = 0; - *realnump = regnum; - if (valuep) - frame_unwind_register (next_frame, regnum, valuep); + return frame_unwind_got_register (this_frame, regnum, regnum); } static const struct frame_unwind sparc64_frame_unwind = { NORMAL_FRAME, + default_frame_unwind_stop_reason, sparc64_frame_this_id, - sparc64_frame_prev_register + sparc64_frame_prev_register, + NULL, + default_frame_sniffer }; - -static const struct frame_unwind * -sparc64_frame_sniffer (struct frame_info *next_frame) -{ - return &sparc64_frame_unwind; -} static CORE_ADDR -sparc64_frame_base_address (struct frame_info *next_frame, void **this_cache) +sparc64_frame_base_address (struct frame_info *this_frame, void **this_cache) { struct sparc_frame_cache *cache = - sparc64_frame_cache (next_frame, this_cache); + sparc64_frame_cache (this_frame, this_cache); return cache->base; } @@ -638,13 +639,15 @@ sparc64_16_byte_align_p (struct type *type) static void sparc64_store_floating_fields (struct regcache *regcache, struct type *type, - const char *valbuf, int element, int bitpos) + const gdb_byte *valbuf, int element, int bitpos) { + int len = TYPE_LENGTH (type); + gdb_assert (element < 16); - if (sparc64_floating_p (type)) + if (sparc64_floating_p (type) + || (sparc64_complex_floating_p (type) && len <= 16)) { - int len = TYPE_LENGTH (type); int regnum; if (len == 16) @@ -710,7 +713,7 @@ sparc64_store_floating_fields (struct regcache *regcache, struct type *type, static void sparc64_extract_floating_fields (struct regcache *regcache, struct type *type, - char *valbuf, int bitpos) + gdb_byte *valbuf, int bitpos) { if (sparc64_floating_p (type)) { @@ -762,6 +765,7 @@ sparc64_store_arguments (struct regcache *regcache, int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr) { + struct gdbarch *gdbarch = get_regcache_arch (regcache); /* Number of extended words in the "parameter array". */ int num_elements = 0; int element = 0; @@ -781,7 +785,8 @@ sparc64_store_arguments (struct regcache *regcache, int nargs, struct type *type = value_type (args[i]); int len = TYPE_LENGTH (type); - if (sparc64_structure_or_union_p (type)) + if (sparc64_structure_or_union_p (type) + || (sparc64_complex_floating_p (type) && len == 32)) { /* Structure or Union arguments. */ if (len <= 16) @@ -812,10 +817,9 @@ sparc64_store_arguments (struct regcache *regcache, int nargs, num_elements++; } } - else if (sparc64_floating_p (type)) + else if (sparc64_floating_p (type) || sparc64_complex_floating_p (type)) { /* Floating arguments. */ - if (len == 16) { /* The psABI says that "Each quad-precision parameter @@ -843,7 +847,8 @@ sparc64_store_arguments (struct regcache *regcache, int nargs, caller to an extended word according to the signed-ness of the argument type." */ if (len < 8) - args[i] = value_cast (builtin_type_int64, args[i]); + args[i] = value_cast (builtin_type (gdbarch)->builtin_int64, + args[i]); num_elements++; } } @@ -876,13 +881,14 @@ sparc64_store_arguments (struct regcache *regcache, int nargs, for (i = 0; i < nargs; i++) { - const char *valbuf = value_contents (args[i]); + const gdb_byte *valbuf = value_contents (args[i]); struct type *type = value_type (args[i]); int len = TYPE_LENGTH (type); int regnum = -1; - char buf[16]; + gdb_byte buf[16]; - if (sparc64_structure_or_union_p (type)) + if (sparc64_structure_or_union_p (type) + || (sparc64_complex_floating_p (type) && len == 32)) { /* Structure or Union arguments. */ gdb_assert (len <= 16); @@ -902,7 +908,7 @@ sparc64_store_arguments (struct regcache *regcache, int nargs, if (element < 16) sparc64_store_floating_fields (regcache, type, valbuf, element, 0); } - else if (sparc64_floating_p (type)) + else if (sparc64_floating_p (type) || sparc64_complex_floating_p (type)) { /* Floating arguments. */ if (len == 16) @@ -917,12 +923,12 @@ sparc64_store_arguments (struct regcache *regcache, int nargs, if (element < 16) regnum = SPARC64_D0_REGNUM + element; } - else + else if (len == 4) { /* The psABI says "Each single-precision parameter value will be assigned to one extended word in the parameter array, and right-justified within that - word; the left half (even floatregister) is + word; the left half (even float register) is undefined." Even though the psABI says that "the left half is undefined", set it to zero here. */ memset (buf, 0, 4); @@ -955,7 +961,7 @@ sparc64_store_arguments (struct regcache *regcache, int nargs, } else if (regnum >= SPARC64_Q0_REGNUM && regnum <= SPARC64_Q8_REGNUM) { - gdb_assert (element < 6); + gdb_assert (element < 5); regnum = SPARC_O0_REGNUM + element; regcache_cooked_write (regcache, regnum, valbuf); regcache_cooked_write (regcache, regnum + 1, valbuf + 8); @@ -974,6 +980,13 @@ sparc64_store_arguments (struct regcache *regcache, int nargs, return sp; } +static CORE_ADDR +sparc64_frame_align (struct gdbarch *gdbarch, CORE_ADDR address) +{ + /* The ABI requires 16-byte alignment. */ + return address & ~0xf; +} + static CORE_ADDR sparc64_push_dummy_call (struct gdbarch *gdbarch, struct value *function, struct regcache *regcache, CORE_ADDR bp_addr, @@ -1005,10 +1018,10 @@ sparc64_push_dummy_call (struct gdbarch *gdbarch, struct value *function, static void sparc64_extract_return_value (struct type *type, struct regcache *regcache, - void *valbuf) + gdb_byte *valbuf) { int len = TYPE_LENGTH (type); - char buf[32]; + gdb_byte buf[32]; int i; if (sparc64_structure_or_union_p (type)) @@ -1022,13 +1035,22 @@ sparc64_extract_return_value (struct type *type, struct regcache *regcache, sparc64_extract_floating_fields (regcache, type, buf, 0); memcpy (valbuf, buf, len); } - else if (sparc64_floating_p (type)) + else if (sparc64_floating_p (type) || sparc64_complex_floating_p (type)) { /* Floating return values. */ for (i = 0; i < len / 4; i++) regcache_cooked_read (regcache, SPARC_F0_REGNUM + i, buf + i * 4); memcpy (valbuf, buf, len); } + else if (TYPE_CODE (type) == TYPE_CODE_ARRAY) + { + /* Small arrays are returned the same way as small structures. */ + gdb_assert (len <= 32); + + for (i = 0; i < ((len + 7) / 8); i++) + regcache_cooked_read (regcache, SPARC_O0_REGNUM + i, buf + i * 8); + memcpy (valbuf, buf, len); + } else { /* Integral and pointer return values. */ @@ -1046,10 +1068,10 @@ sparc64_extract_return_value (struct type *type, struct regcache *regcache, static void sparc64_store_return_value (struct type *type, struct regcache *regcache, - const void *valbuf) + const gdb_byte *valbuf) { int len = TYPE_LENGTH (type); - char buf[16]; + gdb_byte buf[16]; int i; if (sparc64_structure_or_union_p (type)) @@ -1067,13 +1089,23 @@ sparc64_store_return_value (struct type *type, struct regcache *regcache, if (TYPE_CODE (type) != TYPE_CODE_UNION) sparc64_store_floating_fields (regcache, type, buf, 0, 0); } - else if (sparc64_floating_p (type)) + else if (sparc64_floating_p (type) || sparc64_complex_floating_p (type)) { /* Floating return values. */ memcpy (buf, valbuf, len); for (i = 0; i < len / 4; i++) regcache_cooked_write (regcache, SPARC_F0_REGNUM + i, buf + i * 4); } + else if (TYPE_CODE (type) == TYPE_CODE_ARRAY) + { + /* Small arrays are returned the same way as small structures. */ + gdb_assert (len <= 32); + + memset (buf, 0, sizeof (buf)); + memcpy (buf, valbuf, len); + for (i = 0; i < ((len + 7) / 8); i++) + regcache_cooked_write (regcache, SPARC_O0_REGNUM + i, buf + i * 8); + } else { /* Integral and pointer return values. */ @@ -1087,9 +1119,9 @@ sparc64_store_return_value (struct type *type, struct regcache *regcache, } static enum return_value_convention -sparc64_return_value (struct gdbarch *gdbarch, struct type *type, - struct regcache *regcache, void *readbuf, - const void *writebuf) +sparc64_return_value (struct gdbarch *gdbarch, struct value *function, + struct type *type, struct regcache *regcache, + gdb_byte *readbuf, const gdb_byte *writebuf) { if (TYPE_LENGTH (type) > 32) return RETURN_VALUE_STRUCT_CONVENTION; @@ -1103,6 +1135,33 @@ sparc64_return_value (struct gdbarch *gdbarch, struct type *type, } +static void +sparc64_dwarf2_frame_init_reg (struct gdbarch *gdbarch, int regnum, + struct dwarf2_frame_state_reg *reg, + struct frame_info *this_frame) +{ + switch (regnum) + { + case SPARC_G0_REGNUM: + /* Since %g0 is always zero, there is no point in saving it, and + people will be inclined omit it from the CFI. Make sure we + don't warn about that. */ + reg->how = DWARF2_FRAME_REG_SAME_VALUE; + break; + case SPARC_SP_REGNUM: + reg->how = DWARF2_FRAME_REG_CFA; + break; + case SPARC64_PC_REGNUM: + reg->how = DWARF2_FRAME_REG_RA_OFFSET; + reg->loc.offset = 8; + break; + case SPARC64_NPC_REGNUM: + reg->how = DWARF2_FRAME_REG_RA_OFFSET; + reg->loc.offset = 12; + break; + } +} + void sparc64_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) { @@ -1127,6 +1186,7 @@ sparc64_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) set_gdbarch_pc_regnum (gdbarch, SPARC64_PC_REGNUM); /* %pc */ /* Call dummy code. */ + set_gdbarch_frame_align (gdbarch, sparc64_frame_align); set_gdbarch_call_dummy_location (gdbarch, AT_ENTRY_POINT); set_gdbarch_push_dummy_code (gdbarch, NULL); set_gdbarch_push_dummy_call (gdbarch, sparc64_push_dummy_call); @@ -1137,7 +1197,12 @@ sparc64_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) set_gdbarch_skip_prologue (gdbarch, sparc64_skip_prologue); - frame_unwind_append_sniffer (gdbarch, sparc64_frame_sniffer); + /* Hook in the DWARF CFI frame unwinder. */ + dwarf2_frame_set_init_reg (gdbarch, sparc64_dwarf2_frame_init_reg); + /* FIXME: kettenis/20050423: Don't enable the unwinder until the + StackGhost issues have been resolved. */ + + frame_unwind_append_unwinder (gdbarch, &sparc64_frame_unwind); frame_base_set_default (gdbarch, &sparc64_frame_base); } @@ -1160,8 +1225,11 @@ sparc64_supply_gregset (const struct sparc_gregset *gregset, struct regcache *regcache, int regnum, const void *gregs) { - int sparc32 = (gdbarch_ptr_bit (current_gdbarch) == 32); - const char *regs = gregs; + struct gdbarch *gdbarch = get_regcache_arch (regcache); + enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); + int sparc32 = (gdbarch_ptr_bit (gdbarch) == 32); + const gdb_byte *regs = gregs; + gdb_byte zero[8] = { 0 }; int i; if (sparc32) @@ -1170,12 +1238,12 @@ sparc64_supply_gregset (const struct sparc_gregset *gregset, { int offset = gregset->r_tstate_offset; ULONGEST tstate, psr; - char buf[4]; + gdb_byte buf[4]; - tstate = extract_unsigned_integer (regs + offset, 8); + tstate = extract_unsigned_integer (regs + offset, 8, byte_order); psr = ((tstate & TSTATE_CWP) | PSR_S | ((tstate & TSTATE_ICC) >> 12) | ((tstate & TSTATE_XCC) >> 20) | PSR_V8PLUS); - store_unsigned_integer (buf, 4, psr); + store_unsigned_integer (buf, 4, byte_order, psr); regcache_raw_supply (regcache, SPARC32_PSR_REGNUM, buf); } @@ -1209,7 +1277,7 @@ sparc64_supply_gregset (const struct sparc_gregset *gregset, if (regnum == SPARC64_Y_REGNUM || regnum == -1) { - char buf[8]; + gdb_byte buf[8]; memset (buf, 0, 8); memcpy (buf + 8 - gregset->r_y_size, @@ -1224,7 +1292,7 @@ sparc64_supply_gregset (const struct sparc_gregset *gregset, } if (regnum == SPARC_G0_REGNUM || regnum == -1) - regcache_raw_supply (regcache, SPARC_G0_REGNUM, NULL); + regcache_raw_supply (regcache, SPARC_G0_REGNUM, &zero); if ((regnum >= SPARC_G1_REGNUM && regnum <= SPARC_O7_REGNUM) || regnum == -1) { @@ -1274,8 +1342,10 @@ sparc64_collect_gregset (const struct sparc_gregset *gregset, const struct regcache *regcache, int regnum, void *gregs) { - int sparc32 = (gdbarch_ptr_bit (current_gdbarch) == 32); - char *regs = gregs; + struct gdbarch *gdbarch = get_regcache_arch (regcache); + enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); + int sparc32 = (gdbarch_ptr_bit (gdbarch) == 32); + gdb_byte *regs = gregs; int i; if (sparc32) @@ -1284,15 +1354,15 @@ sparc64_collect_gregset (const struct sparc_gregset *gregset, { int offset = gregset->r_tstate_offset; ULONGEST tstate, psr; - char buf[8]; + gdb_byte buf[8]; - tstate = extract_unsigned_integer (regs + offset, 8); + tstate = extract_unsigned_integer (regs + offset, 8, byte_order); regcache_raw_collect (regcache, SPARC32_PSR_REGNUM, buf); - psr = extract_unsigned_integer (buf, 4); + psr = extract_unsigned_integer (buf, 4, byte_order); tstate |= (psr & PSR_ICC) << 12; if ((psr & (PSR_VERS | PSR_IMPL)) == PSR_V8PLUS) tstate |= (psr & PSR_XCC) << 20; - store_unsigned_integer (buf, 8, tstate); + store_unsigned_integer (buf, 8, byte_order, tstate); memcpy (regs + offset, buf, 8); } @@ -1326,7 +1396,7 @@ sparc64_collect_gregset (const struct sparc_gregset *gregset, if (regnum == SPARC64_Y_REGNUM || regnum == -1) { - char buf[8]; + gdb_byte buf[8]; regcache_raw_collect (regcache, SPARC64_Y_REGNUM, buf); memcpy (regs + gregset->r_y_offset, @@ -1378,24 +1448,26 @@ sparc64_collect_gregset (const struct sparc_gregset *gregset, } void -sparc64_supply_fpregset (struct regcache *regcache, +sparc64_supply_fpregset (const struct sparc_fpregset *fpregset, + struct regcache *regcache, int regnum, const void *fpregs) { - int sparc32 = (gdbarch_ptr_bit (current_gdbarch) == 32); - const char *regs = fpregs; + int sparc32 = (gdbarch_ptr_bit (get_regcache_arch (regcache)) == 32); + const gdb_byte *regs = fpregs; int i; for (i = 0; i < 32; i++) { if (regnum == (SPARC_F0_REGNUM + i) || regnum == -1) - regcache_raw_supply (regcache, SPARC_F0_REGNUM + i, regs + (i * 4)); + regcache_raw_supply (regcache, SPARC_F0_REGNUM + i, + regs + fpregset->r_f0_offset + (i * 4)); } if (sparc32) { if (regnum == SPARC32_FSR_REGNUM || regnum == -1) regcache_raw_supply (regcache, SPARC32_FSR_REGNUM, - regs + (32 * 4) + (16 * 8) + 4); + regs + fpregset->r_fsr_offset); } else { @@ -1403,34 +1475,37 @@ sparc64_supply_fpregset (struct regcache *regcache, { if (regnum == (SPARC64_F32_REGNUM + i) || regnum == -1) regcache_raw_supply (regcache, SPARC64_F32_REGNUM + i, - regs + (32 * 4) + (i * 8)); + (regs + fpregset->r_f0_offset + + (32 * 4) + (i * 8))); } if (regnum == SPARC64_FSR_REGNUM || regnum == -1) regcache_raw_supply (regcache, SPARC64_FSR_REGNUM, - regs + (32 * 4) + (16 * 8)); + regs + fpregset->r_fsr_offset); } } void -sparc64_collect_fpregset (const struct regcache *regcache, +sparc64_collect_fpregset (const struct sparc_fpregset *fpregset, + const struct regcache *regcache, int regnum, void *fpregs) { - int sparc32 = (gdbarch_ptr_bit (current_gdbarch) == 32); - char *regs = fpregs; + int sparc32 = (gdbarch_ptr_bit (get_regcache_arch (regcache)) == 32); + gdb_byte *regs = fpregs; int i; for (i = 0; i < 32; i++) { if (regnum == (SPARC_F0_REGNUM + i) || regnum == -1) - regcache_raw_collect (regcache, SPARC_F0_REGNUM + i, regs + (i * 4)); + regcache_raw_collect (regcache, SPARC_F0_REGNUM + i, + regs + fpregset->r_f0_offset + (i * 4)); } if (sparc32) { if (regnum == SPARC32_FSR_REGNUM || regnum == -1) regcache_raw_collect (regcache, SPARC32_FSR_REGNUM, - regs + (32 * 4) + (16 * 8) + 4); + regs + fpregset->r_fsr_offset); } else { @@ -1438,11 +1513,18 @@ sparc64_collect_fpregset (const struct regcache *regcache, { if (regnum == (SPARC64_F32_REGNUM + i) || regnum == -1) regcache_raw_collect (regcache, SPARC64_F32_REGNUM + i, - regs + (32 * 4) + (i * 8)); + (regs + fpregset->r_f0_offset + + (32 * 4) + (i * 8))); } if (regnum == SPARC64_FSR_REGNUM || regnum == -1) regcache_raw_collect (regcache, SPARC64_FSR_REGNUM, - regs + (32 * 4) + (16 * 8)); + regs + fpregset->r_fsr_offset); } } + +const struct sparc_fpregset sparc64_bsd_fpregset = +{ + 0 * 8, /* %f0 */ + 32 * 8, /* %fsr */ +};