1 /* i386 specific core note handling. 2 Copyright (C) 2007-2010 Red Hat, Inc. 3 This file is part of Red Hat elfutils. 4 5 Red Hat elfutils is free software; you can redistribute it and/or modify 6 it under the terms of the GNU General Public License as published by the 7 Free Software Foundation; version 2 of the License. 8 9 Red Hat elfutils is distributed in the hope that it will be useful, but 10 WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 General Public License for more details. 13 14 You should have received a copy of the GNU General Public License along 15 with Red Hat elfutils; if not, write to the Free Software Foundation, 16 Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA. 17 18 Red Hat elfutils is an included package of the Open Invention Network. 19 An included package of the Open Invention Network is a package for which 20 Open Invention Network licensees cross-license their patents. No patent 21 license is granted, either expressly or impliedly, by designation as an 22 included package. Should you wish to participate in the Open Invention 23 Network licensing program, please visit www.openinventionnetwork.com 24 <http://www.openinventionnetwork.com>. */ 25 26 #ifdef HAVE_CONFIG_H 27 # include <config.h> 28 #endif 29 30 #include <elf.h> 31 #include <inttypes.h> 32 #include <stddef.h> 33 #include <stdio.h> 34 #include <sys/time.h> 35 36 #define BACKEND i386_ 37 #include "libebl_CPU.h" 38 39 40 static const Ebl_Register_Location prstatus_regs[] = 41 { 42 #define GR(at, n, dwreg) \ 43 { .offset = at * 4, .regno = dwreg, .count = n, .bits = 32 } 44 #define SR(at, n, dwreg) \ 45 { .offset = at * 4, .regno = dwreg, .count = n, .bits = 16, .pad = 2 } 46 47 GR (0, 1, 3), /* %ebx */ 48 GR (1, 2, 1), /* %ecx-%edx */ 49 GR (3, 2, 6), /* %esi-%edi */ 50 GR (5, 1, 5), /* %ebp */ 51 GR (6, 1, 0), /* %eax */ 52 SR (7, 1, 43), /* %ds */ 53 SR (8, 1, 40), /* %es */ 54 SR (9, 1, 44), /* %fs */ 55 SR (10, 1, 45), /* %gs */ 56 /* 11, 1, orig_eax */ 57 GR (12, 1, 8), /* %eip */ 58 SR (13, 1, 41), /* %cs */ 59 GR (14, 1, 9), /* eflags */ 60 GR (15, 1, 4), /* %esp */ 61 SR (16, 1, 42), /* %ss */ 62 63 #undef GR 64 #undef SR 65 }; 66 #define PRSTATUS_REGS_SIZE (17 * 4) 67 68 #define ULONG uint32_t 69 #define PID_T int32_t 70 #define UID_T uint16_t 71 #define GID_T uint16_t 72 #define ALIGN_ULONG 4 73 #define ALIGN_PID_T 4 74 #define ALIGN_UID_T 2 75 #define ALIGN_GID_T 2 76 #define TYPE_ULONG ELF_T_WORD 77 #define TYPE_PID_T ELF_T_SWORD 78 #define TYPE_UID_T ELF_T_HALF 79 #define TYPE_GID_T ELF_T_HALF 80 81 #define PRSTATUS_REGSET_ITEMS \ 82 { \ 83 .name = "orig_eax", .type = ELF_T_SWORD, .format = 'd', \ 84 .offset = offsetof (struct EBLHOOK(prstatus), pr_reg) + (4 * 11), \ 85 .group = "register" \ 86 } 87 88 static const Ebl_Register_Location fpregset_regs[] = 89 { 90 { .offset = 0, .regno = 37, .count = 2, .bits = 32 }, /* fctrl-fstat */ 91 { .offset = 7 * 4, .regno = 11, .count = 8, .bits = 80 }, /* stN */ 92 }; 93 #define FPREGSET_SIZE 108 94 95 static const Ebl_Register_Location prxfpreg_regs[] = 96 { 97 { .offset = 0, .regno = 37, .count = 2, .bits = 16 }, /* fctrl-fstat */ 98 { .offset = 24, .regno = 39, .count = 1, .bits = 32 }, /* mxcsr */ 99 { .offset = 32, .regno = 11, .count = 8, .bits = 80, .pad = 6 }, /* stN */ 100 { .offset = 32 + 128, .regno = 21, .count = 8, .bits = 128 }, /* xmm */ 101 }; 102 103 #define EXTRA_NOTES \ 104 EXTRA_REGSET (NT_PRXFPREG, 512, prxfpreg_regs) \ 105 case NT_386_TLS: \ 106 return tls_info (nhdr->n_descsz, regs_offset, nregloc, reglocs, \ 107 nitems, items); \ 108 EXTRA_NOTES_IOPERM 109 110 static const Ebl_Core_Item tls_items[] = 111 { 112 { .type = ELF_T_WORD, .offset = 0x0, .format = 'd', .name = "index" }, 113 { .type = ELF_T_WORD, .offset = 0x4, .format = 'x', .name = "base" }, 114 { .type = ELF_T_WORD, .offset = 0x8, .format = 'x', .name = "limit" }, 115 { .type = ELF_T_WORD, .offset = 0xc, .format = 'x', .name = "flags" }, 116 }; 117 118 static int 119 tls_info (GElf_Word descsz, GElf_Word *regs_offset, 120 size_t *nregloc, const Ebl_Register_Location **reglocs, 121 size_t *nitems, const Ebl_Core_Item **items) 122 { 123 if (descsz % 16 != 0) 124 return 0; 125 126 *regs_offset = 0; 127 *nregloc = 0; 128 *reglocs = NULL; 129 *nitems = sizeof tls_items / sizeof tls_items[0]; 130 *items = tls_items; 131 return 1; 132 } 133 134 #include "x86_corenote.c" 135 #include "linux-core-note.c" 136
