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Diffstat (limited to 'src/backends/i386_corenote.c')
| -rw-r--r-- | src/backends/i386_corenote.c | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/src/backends/i386_corenote.c b/src/backends/i386_corenote.c new file mode 100644 index 00000000..40b6a24e --- /dev/null +++ b/src/backends/i386_corenote.c @@ -0,0 +1,135 @@ +/* i386 specific core note handling. + Copyright (C) 2007-2010 Red Hat, Inc. + This file is part of Red Hat elfutils. + + Red Hat elfutils 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; version 2 of the License. + + Red Hat elfutils is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU General Public License along + with Red Hat elfutils; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA. + + Red Hat elfutils is an included package of the Open Invention Network. + An included package of the Open Invention Network is a package for which + Open Invention Network licensees cross-license their patents. No patent + license is granted, either expressly or impliedly, by designation as an + included package. Should you wish to participate in the Open Invention + Network licensing program, please visit www.openinventionnetwork.com + <http://www.openinventionnetwork.com>. */ + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif + +#include <elf.h> +#include <inttypes.h> +#include <stddef.h> +#include <stdio.h> +#include <sys/time.h> + +#define BACKEND i386_ +#include "libebl_CPU.h" + + +static const Ebl_Register_Location prstatus_regs[] = + { +#define GR(at, n, dwreg) \ + { .offset = at * 4, .regno = dwreg, .count = n, .bits = 32 } +#define SR(at, n, dwreg) \ + { .offset = at * 4, .regno = dwreg, .count = n, .bits = 16, .pad = 2 } + + GR (0, 1, 3), /* %ebx */ + GR (1, 2, 1), /* %ecx-%edx */ + GR (3, 2, 6), /* %esi-%edi */ + GR (5, 1, 5), /* %ebp */ + GR (6, 1, 0), /* %eax */ + SR (7, 1, 43), /* %ds */ + SR (8, 1, 40), /* %es */ + SR (9, 1, 44), /* %fs */ + SR (10, 1, 45), /* %gs */ + /* 11, 1, orig_eax */ + GR (12, 1, 8), /* %eip */ + SR (13, 1, 41), /* %cs */ + GR (14, 1, 9), /* eflags */ + GR (15, 1, 4), /* %esp */ + SR (16, 1, 42), /* %ss */ + +#undef GR +#undef SR + }; +#define PRSTATUS_REGS_SIZE (17 * 4) + +#define ULONG uint32_t +#define PID_T int32_t +#define UID_T uint16_t +#define GID_T uint16_t +#define ALIGN_ULONG 4 +#define ALIGN_PID_T 4 +#define ALIGN_UID_T 2 +#define ALIGN_GID_T 2 +#define TYPE_ULONG ELF_T_WORD +#define TYPE_PID_T ELF_T_SWORD +#define TYPE_UID_T ELF_T_HALF +#define TYPE_GID_T ELF_T_HALF + +#define PRSTATUS_REGSET_ITEMS \ + { \ + .name = "orig_eax", .type = ELF_T_SWORD, .format = 'd', \ + .offset = offsetof (struct EBLHOOK(prstatus), pr_reg) + (4 * 11), \ + .group = "register" \ + } + +static const Ebl_Register_Location fpregset_regs[] = + { + { .offset = 0, .regno = 37, .count = 2, .bits = 32 }, /* fctrl-fstat */ + { .offset = 7 * 4, .regno = 11, .count = 8, .bits = 80 }, /* stN */ + }; +#define FPREGSET_SIZE 108 + +static const Ebl_Register_Location prxfpreg_regs[] = + { + { .offset = 0, .regno = 37, .count = 2, .bits = 16 }, /* fctrl-fstat */ + { .offset = 24, .regno = 39, .count = 1, .bits = 32 }, /* mxcsr */ + { .offset = 32, .regno = 11, .count = 8, .bits = 80, .pad = 6 }, /* stN */ + { .offset = 32 + 128, .regno = 21, .count = 8, .bits = 128 }, /* xmm */ + }; + +#define EXTRA_NOTES \ + EXTRA_REGSET (NT_PRXFPREG, 512, prxfpreg_regs) \ + case NT_386_TLS: \ + return tls_info (nhdr->n_descsz, regs_offset, nregloc, reglocs, \ + nitems, items); \ + EXTRA_NOTES_IOPERM + +static const Ebl_Core_Item tls_items[] = + { + { .type = ELF_T_WORD, .offset = 0x0, .format = 'd', .name = "index" }, + { .type = ELF_T_WORD, .offset = 0x4, .format = 'x', .name = "base" }, + { .type = ELF_T_WORD, .offset = 0x8, .format = 'x', .name = "limit" }, + { .type = ELF_T_WORD, .offset = 0xc, .format = 'x', .name = "flags" }, + }; + +static int +tls_info (GElf_Word descsz, GElf_Word *regs_offset, + size_t *nregloc, const Ebl_Register_Location **reglocs, + size_t *nitems, const Ebl_Core_Item **items) +{ + if (descsz % 16 != 0) + return 0; + + *regs_offset = 0; + *nregloc = 0; + *reglocs = NULL; + *nitems = sizeof tls_items / sizeof tls_items[0]; + *items = tls_items; + return 1; +} + +#include "x86_corenote.c" +#include "linux-core-note.c" |