1 /* Machine independent support for Solaris 2 core files for GDB.
2 Copyright 1994, 2000 Free Software Foundation, Inc.
4 This file is part of GDB.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
22 /* Solaris comes with two flavours of core files, cores generated by
23 an ELF executable and cores generated by programs that were
24 run under BCP (the part of Solaris which allows it to run SunOS4
26 This file combines the core register fetching from core-regset.c
27 and sparc-nat.c to be able to read both flavours. */
29 /* for Sparc64 cross Sparc32 */
33 #if defined (__sparcv9)
34 /* Fails to get included by the Solaris system header files. */
35 # include <v9/sys/privregs.h>
39 #include <sys/types.h>
40 #include <sys/regset.h>
41 #include <sys/procfs.h>
44 #include "gdb_string.h"
51 /* Prototypes for supply_gregset etc. */
54 static void fetch_core_registers (char *, unsigned, int, CORE_ADDR);
56 /* Fetch registers from core file data pointed to by CORE_REG_SECT. When
57 WHICH is 0, the the general register set is fetched; when WHICH is
58 2, the floating point registers are fetched. CORE_REG_SIZE is used
59 to validate the size of the data pointed to by CORE_REG_SECT. REG_ADDR
63 fetch_core_registers (char *core_reg_sect, unsigned core_reg_size, int which,
70 prgregset_t prgregset;
72 if (core_reg_size == sizeof (prgregset_t))
74 memcpy ((char *) &prgregset, core_reg_sect, sizeof (prgregset));
75 supply_gregset (&prgregset);
77 #if defined (HAVE_PRGREGSET32_T)
78 /* 32-bit corefile, 64-bit debugger. */
79 else if (core_reg_size == sizeof (prgregset32_t))
81 prgreg32_t *core_gregs;
83 /* Can't use memcpy here, because the core file contains
84 32-bit regs; supply_register expects 64-bit regs. */
85 core_gregs = (prgreg32_t *) core_reg_sect;
86 for (i = 0; i < NPRGREG; i++)
87 prgregset[i] = core_gregs[i];
89 supply_gregset (&prgregset);
91 #endif /* HAVE_PRGREGSET32_T */
92 else if (core_reg_size == sizeof (struct regs))
94 struct regs *gregs = (struct regs *) core_reg_sect;
96 /* G0 *always* holds 0. */
97 *(int *) ®isters[REGISTER_BYTE (0)] = 0;
99 /* The globals and output registers. */
100 memcpy (®isters[REGISTER_BYTE (G1_REGNUM)], &gregs->r_g1,
101 15 * REGISTER_RAW_SIZE (G1_REGNUM));
102 *(int *) ®isters[REGISTER_BYTE (PS_REGNUM)] = gregs->r_ps;
103 *(int *) ®isters[REGISTER_BYTE (PC_REGNUM)] = gregs->r_pc;
104 *(int *) ®isters[REGISTER_BYTE (NPC_REGNUM)] = gregs->r_npc;
105 *(int *) ®isters[REGISTER_BYTE (Y_REGNUM)] = gregs->r_y;
107 /* My best guess at where to get the locals and input
108 registers is exactly where they usually are, right above
109 the stack pointer. If the core dump was caused by a bus error
110 from blowing away the stack pointer (as is possible) then this
111 won't work, but it's worth the try. */
115 sp = *(int *) ®isters[REGISTER_BYTE (SP_REGNUM)];
116 if (0 != target_read_memory (sp,
117 ®isters[REGISTER_BYTE (L0_REGNUM)],
118 16 * REGISTER_RAW_SIZE (L0_REGNUM)))
120 warning ("couldn't read input and local registers from core file\n");
126 warning ("wrong size gregset struct in core file");
131 prfpregset_t prfpregset;
133 if (core_reg_size == sizeof (prfpregset_t))
135 memcpy ((char *) &prfpregset, core_reg_sect, sizeof (prfpregset));
136 supply_fpregset (&prfpregset);
138 #if defined (HAVE_PRFPREGSET32_T)
139 /* 32-bit corefile, 64-bit debugger. */
140 else if (core_reg_size == sizeof (prfpregset32_t))
142 prfpregset32_t *core_fpregset;
144 /* Can't use memcpy here, because the core file contains
145 32-bit regs; supply_fpregset expects 64-bit regs. */
147 core_fpregset = (prfpregset32_t *) core_reg_sect;
148 for (i = 0; i < 16; i++)
149 prfpregset.pr_fr.pr_dregs[i] = core_fpregset->pr_fr.pr_dregs[i];
151 prfpregset.pr_fr.pr_dregs[i++] = 0;
153 prfpregset.pr_fsr = core_fpregset->pr_fsr;
154 prfpregset.pr_qcnt = core_fpregset->pr_qcnt;
155 prfpregset.pr_q_entrysize = core_fpregset->pr_q_entrysize;
156 prfpregset.pr_en = core_fpregset->pr_en;
157 /* We will not use the pr_q array. */
159 supply_fpregset (&prfpregset);
161 #endif /* HAVE_PRFPREGSET32_T */
162 else if (core_reg_size >= sizeof (struct fpu))
164 struct fpu *fpuregs = (struct fpu *) core_reg_sect;
166 memcpy (®isters[REGISTER_BYTE (FP0_REGNUM)], &fpuregs->fpu_fr,
167 sizeof (fpuregs->fpu_fr));
168 memcpy (®isters[REGISTER_BYTE (FPS_REGNUM)], &fpuregs->fpu_fsr,
169 sizeof (FPU_FSR_TYPE));
173 warning ("wrong size fpregset struct in core file");
179 /* Register that we are able to handle solaris core file formats. */
181 static struct core_fns solaris_core_fns =
183 bfd_target_elf_flavour, /* core_flavour */
184 default_check_format, /* check_format */
185 default_core_sniffer, /* core_sniffer */
186 fetch_core_registers, /* core_read_registers */
191 _initialize_core_solaris (void)
193 add_core_fns (&solaris_core_fns);