automake commit without merge history
This commit is contained in:
BVK Chaitanya
parent
265d68cd10
commit
8c41176882
810 changed files with 4980 additions and 2508 deletions
46
grub-core/lib/i386/pc/biosnum.c
Normal file
46
grub-core/lib/i386/pc/biosnum.c
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@ -0,0 +1,46 @@
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2009 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <grub/env.h>
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#include <grub/misc.h>
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#include <grub/disk.h>
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static int
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grub_get_root_biosnumber_default (void)
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{
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char *biosnum;
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int ret = -1;
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grub_device_t dev;
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biosnum = grub_env_get ("biosnum");
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if (biosnum)
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return grub_strtoul (biosnum, 0, 0);
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dev = grub_device_open (0);
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if (dev && dev->disk && dev->disk->dev
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&& dev->disk->dev->id == GRUB_DISK_DEVICE_BIOSDISK_ID)
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ret = (int) dev->disk->id;
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if (dev)
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grub_device_close (dev);
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return ret;
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}
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int (*grub_get_root_biosnumber) (void) = grub_get_root_biosnumber_default;
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102
grub-core/lib/i386/relocator.c
Normal file
102
grub-core/lib/i386/relocator.c
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@ -0,0 +1,102 @@
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2009 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <grub/mm.h>
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#include <grub/misc.h>
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#include <grub/types.h>
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#include <grub/types.h>
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#include <grub/err.h>
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#include <grub/i386/relocator.h>
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extern grub_uint8_t grub_relocator32_forward_start;
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extern grub_uint8_t grub_relocator32_forward_end;
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extern grub_uint8_t grub_relocator32_backward_start;
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extern grub_uint8_t grub_relocator32_backward_end;
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extern grub_uint32_t grub_relocator32_backward_dest;
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extern grub_uint32_t grub_relocator32_backward_size;
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extern grub_addr_t grub_relocator32_backward_src;
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extern grub_uint32_t grub_relocator32_forward_dest;
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extern grub_uint32_t grub_relocator32_forward_size;
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extern grub_addr_t grub_relocator32_forward_src;
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extern grub_uint32_t grub_relocator32_forward_eax;
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extern grub_uint32_t grub_relocator32_forward_ebx;
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extern grub_uint32_t grub_relocator32_forward_ecx;
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extern grub_uint32_t grub_relocator32_forward_edx;
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extern grub_uint32_t grub_relocator32_forward_eip;
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extern grub_uint32_t grub_relocator32_forward_esp;
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extern grub_uint32_t grub_relocator32_backward_eax;
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extern grub_uint32_t grub_relocator32_backward_ebx;
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extern grub_uint32_t grub_relocator32_backward_ecx;
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extern grub_uint32_t grub_relocator32_backward_edx;
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extern grub_uint32_t grub_relocator32_backward_eip;
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extern grub_uint32_t grub_relocator32_backward_esp;
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#define RELOCATOR_SIZEOF(x) (&grub_relocator32_##x##_end - &grub_relocator32_##x##_start)
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#define RELOCATOR_ALIGN 16
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#define PREFIX(x) grub_relocator32_ ## x
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static void
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write_call_relocator_bw (void *ptr, void *src, grub_uint32_t dest,
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grub_size_t size, struct grub_relocator32_state state)
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{
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grub_relocator32_backward_dest = dest;
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grub_relocator32_backward_src = PTR_TO_UINT64 (src);
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grub_relocator32_backward_size = size;
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grub_relocator32_backward_eax = state.eax;
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grub_relocator32_backward_ebx = state.ebx;
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grub_relocator32_backward_ecx = state.ecx;
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grub_relocator32_backward_edx = state.edx;
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grub_relocator32_backward_eip = state.eip;
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grub_relocator32_backward_esp = state.esp;
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grub_memmove (ptr,
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&grub_relocator32_backward_start,
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RELOCATOR_SIZEOF (backward));
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((void (*) (void)) ptr) ();
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}
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static void
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write_call_relocator_fw (void *ptr, void *src, grub_uint32_t dest,
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grub_size_t size, struct grub_relocator32_state state)
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{
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grub_relocator32_forward_dest = dest;
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grub_relocator32_forward_src = PTR_TO_UINT64 (src);
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grub_relocator32_forward_size = size;
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grub_relocator32_forward_eax = state.eax;
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grub_relocator32_forward_ebx = state.ebx;
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grub_relocator32_forward_ecx = state.ecx;
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grub_relocator32_forward_edx = state.edx;
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grub_relocator32_forward_eip = state.eip;
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grub_relocator32_forward_esp = state.esp;
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grub_memmove (ptr,
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&grub_relocator32_forward_start,
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RELOCATOR_SIZEOF (forward));
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((void (*) (void)) ptr) ();
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}
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#include "../relocator.c"
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248
grub-core/lib/i386/relocator_asm.S
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248
grub-core/lib/i386/relocator_asm.S
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@ -0,0 +1,248 @@
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2009 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <grub/symbol.h>
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#include <grub/i386/memory.h>
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#ifdef BACKWARD
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#define RELOCATOR_VARIABLE(x) VARIABLE(grub_relocator32_backward_ ## x)
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#else
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#define RELOCATOR_VARIABLE(x) VARIABLE(grub_relocator32_forward_ ## x)
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#endif
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#ifdef __x86_64__
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#define RAX %rax
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#define RCX %rcx
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#define RDI %rdi
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#define RSI %rdi
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#else
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#define RAX %eax
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#define RCX %ecx
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#define RDI %edi
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#define RSI %esi
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#endif
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/* The code segment of the protected mode. */
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#define CODE_SEGMENT 0x10
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/* The data segment of the protected mode. */
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#define DATA_SEGMENT 0x18
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.p2align 4 /* force 16-byte alignment */
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RELOCATOR_VARIABLE(start)
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#ifdef BACKWARD
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LOCAL(base):
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#endif
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cli
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#ifndef __x86_64__
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/* mov imm32, %eax */
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.byte 0xb8
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RELOCATOR_VARIABLE(dest)
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.long 0
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movl %eax, %edi
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/* mov imm32, %eax */
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.byte 0xb8
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RELOCATOR_VARIABLE(src)
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.long 0
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movl %eax, %esi
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/* mov imm32, %ecx */
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.byte 0xb9
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RELOCATOR_VARIABLE(size)
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.long 0
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#else
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xorq %rax, %rax
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/* mov imm32, %eax */
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.byte 0xb8
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RELOCATOR_VARIABLE(dest)
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.long 0
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movq %rax, %rdi
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/* mov imm64, %rax */
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.byte 0x48
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.byte 0xb8
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RELOCATOR_VARIABLE(src)
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.long 0, 0
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movq %rax, %rsi
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xorq %rcx, %rcx
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/* mov imm32, %ecx */
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.byte 0xb9
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RELOCATOR_VARIABLE(size)
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.long 0
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#endif
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mov RDI, RAX
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#ifdef BACKWARD
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add RCX, RSI
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add RCX, RDI
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#endif
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#ifndef BACKWARD
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add RCX, RAX
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#endif
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add $0x3, RCX
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shr $2, RCX
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#ifdef BACKWARD
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/* Backward movsl is implicitly off-by-four. compensate that. */
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sub $4, RSI
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sub $4, RDI
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/* Backward copy. */
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std
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rep
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movsl
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#else
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/* Forward copy. */
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cld
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rep
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movsl
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#endif
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/* %rax contains now our new 'base'. */
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mov RAX, RSI
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add $(LOCAL(cont0) - LOCAL(base)), RAX
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jmp *RAX
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LOCAL(cont0):
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lea (LOCAL(cont1) - LOCAL(base)) (RSI, 1), RAX
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movl %eax, (LOCAL(jump_vector) - LOCAL(base)) (RSI, 1)
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lea (LOCAL(gdt) - LOCAL(base)) (RSI, 1), RAX
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mov RAX, (LOCAL(gdt_addr) - LOCAL(base)) (RSI, 1)
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/* Switch to compatibility mode. */
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lgdt (LOCAL(gdtdesc) - LOCAL(base)) (RSI, 1)
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/* Update %cs. */
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ljmp *(LOCAL(jump_vector) - LOCAL(base)) (RSI, 1)
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LOCAL(cont1):
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.code32
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/* Update other registers. */
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movl $DATA_SEGMENT, %eax
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movl %eax, %ds
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movl %eax, %es
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movl %eax, %fs
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movl %eax, %gs
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movl %eax, %ss
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/* Disable paging. */
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movl %cr0, %eax
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andl $(~GRUB_MEMORY_CPU_CR0_PAGING_ON), %eax
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movl %eax, %cr0
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/* Disable amd64. */
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movl $GRUB_MEMORY_CPU_AMD64_MSR, %ecx
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rdmsr
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andl $(~GRUB_MEMORY_CPU_AMD64_MSR_ON), %eax
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wrmsr
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/* Turn off PAE. */
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movl %cr4, %eax
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andl $GRUB_MEMORY_CPU_CR4_PAE_ON, %eax
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movl %eax, %cr4
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jmp LOCAL(cont2)
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LOCAL(cont2):
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.code32
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/* mov imm32, %eax */
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.byte 0xb8
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RELOCATOR_VARIABLE (esp)
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.long 0
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movl %eax, %esp
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/* mov imm32, %eax */
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.byte 0xb8
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RELOCATOR_VARIABLE (eax)
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.long 0
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/* mov imm32, %ebx */
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.byte 0xbb
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RELOCATOR_VARIABLE (ebx)
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.long 0
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/* mov imm32, %ecx */
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.byte 0xb9
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RELOCATOR_VARIABLE (ecx)
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.long 0
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/* mov imm32, %edx */
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.byte 0xba
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RELOCATOR_VARIABLE (edx)
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.long 0
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/* Cleared direction flag is of no problem with any current
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payload and makes this implementation easier. */
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cld
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.byte 0xea
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RELOCATOR_VARIABLE (eip)
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.long 0
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.word CODE_SEGMENT
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/* GDT. Copied from loader/i386/linux.c. */
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.p2align 4
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LOCAL(gdt):
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/* NULL. */
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.byte 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
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/* Reserved. */
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.byte 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
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/* Code segment. */
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.byte 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x9A, 0xCF, 0x00
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/* Data segment. */
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.byte 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x92, 0xCF, 0x00
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.p2align 4
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LOCAL(gdtdesc):
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.word 0x27
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LOCAL(gdt_addr):
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#ifdef __x86_64__
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/* Filled by the code. */
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.quad 0
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#else
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/* Filled by the code. */
|
||||
.long 0
|
||||
#endif
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.p2align 4
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LOCAL(jump_vector):
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/* Jump location. Is filled by the code */
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.long 0
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.long CODE_SEGMENT
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#ifndef BACKWARD
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||||
LOCAL(base):
|
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#endif
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|
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RELOCATOR_VARIABLE(end)
|
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2
grub-core/lib/i386/relocator_backward.S
Normal file
2
grub-core/lib/i386/relocator_backward.S
Normal file
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@ -0,0 +1,2 @@
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#define BACKWARD
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#include "relocator_asm.S"
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56
grub-core/lib/i386/setjmp.S
Normal file
56
grub-core/lib/i386/setjmp.S
Normal file
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|
@ -0,0 +1,56 @@
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/*
|
||||
* GRUB -- GRand Unified Bootloader
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||||
* Copyright (C) 2003,2007 Free Software Foundation, Inc.
|
||||
*
|
||||
* GRUB 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 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#include <grub/symbol.h>
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.file "setjmp.S"
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.text
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|
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/*
|
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* int grub_setjmp (grub_jmp_buf env)
|
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*/
|
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FUNCTION(grub_setjmp)
|
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movl %ebx, 0(%eax) /* EBX */
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movl %esi, 4(%eax) /* ESI */
|
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movl %edi, 8(%eax) /* EDI */
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||||
movl %ebp, 12(%eax) /* EBP */
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popl %ecx
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movl %esp, 16(%eax) /* ESP */
|
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movl %ecx, 20(%eax) /* EIP */
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||||
xorl %eax, %eax
|
||||
jmp *%ecx
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||||
|
||||
|
||||
/*
|
||||
* int grub_longjmp (grub_jmp_buf env, int val)
|
||||
*/
|
||||
FUNCTION(grub_longjmp)
|
||||
movl 0(%eax), %ebx
|
||||
movl 4(%eax), %esi
|
||||
movl 8(%eax), %edi
|
||||
movl 12(%eax), %ebp
|
||||
movl 16(%eax), %esp
|
||||
movl 20(%eax), %ecx
|
||||
|
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movl %edx, %eax
|
||||
testl %eax, %eax
|
||||
jnz 1f
|
||||
incl %eax
|
||||
1: jmp *%ecx
|
||||
|
||||
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