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arch/x86: refactor offsets.c

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The IA32 and Intel64 subarchitectures will generate different offset
symbols, so they are refactored. No functional change.

Signed-off-by: Charles E. Youse <charles.youse@intel.com>
This commit is contained in:
Charles E. Youse 2019-07-04 11:02:41 -07:00 • committed by Andrew Boie
commit c18f028366
3 changed files with 89 additions and 70 deletions
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79
arch/x86/core/offsets/ia32_offsets.c Normal file
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@ -0,0 +1,79 @@
/*
* Copyright (c) 2010-2014 Wind River Systems, Inc.
*
* SPDX-License-Identifier: Apache-2.0
*/
/**
* @file
* @brief Kernel structure member offset definition file
*
* This module is responsible for the generation of the absolute symbols whose
* value represents the member offsets for various IA-32 structures.
*
* All of the absolute symbols defined by this module will be present in the
* final kernel ELF image (due to the linker's reference to the _OffsetAbsSyms
* symbol).
*
* INTERNAL
* It is NOT necessary to define the offset for every member of a structure.
* Typically, only those members that are accessed by assembly language routines
* are defined; however, it doesn't hurt to define all fields for the sake of
* completeness.
*/
#include <gen_offset.h> /* located in kernel/include */
/* list of headers that define whose structure offsets will be generated */
#include <kernel_structs.h>
#include <ia32/mmustructs.h>
#include <arch/x86/multiboot.h>
#include <kernel_offsets.h>
#if defined(CONFIG_LAZY_FP_SHARING)
GEN_OFFSET_SYM(_thread_arch_t, excNestCount);
#endif
#ifdef CONFIG_USERSPACE
GEN_ABSOLUTE_SYM(Z_X86_PDPT_SIZE, sizeof(struct x86_mmu_pdpt));
#endif
GEN_OFFSET_SYM(_thread_arch_t, preempFloatReg);
/**
* size of the struct k_thread structure sans save area for floating
* point regs
*/
GEN_ABSOLUTE_SYM(_K_THREAD_NO_FLOAT_SIZEOF,
sizeof(struct k_thread) - sizeof(tPreempFloatReg));
GEN_OFFSET_SYM(_callee_saved_t, esp);
/* z_arch_esf_t structure member offsets */
GEN_OFFSET_SYM(z_arch_esf_t, esp);
GEN_OFFSET_SYM(z_arch_esf_t, ebp);
GEN_OFFSET_SYM(z_arch_esf_t, ebx);
GEN_OFFSET_SYM(z_arch_esf_t, esi);
GEN_OFFSET_SYM(z_arch_esf_t, edi);
GEN_OFFSET_SYM(z_arch_esf_t, edx);
GEN_OFFSET_SYM(z_arch_esf_t, ecx);
GEN_OFFSET_SYM(z_arch_esf_t, eax);
GEN_OFFSET_SYM(z_arch_esf_t, errorCode);
GEN_OFFSET_SYM(z_arch_esf_t, eip);
GEN_OFFSET_SYM(z_arch_esf_t, cs);
GEN_OFFSET_SYM(z_arch_esf_t, eflags);
/* size of the MMU_REGION structure. Used by linker scripts */
GEN_ABSOLUTE_SYM(__MMU_REGION_SIZEOF, sizeof(struct mmu_region));
/* size of struct x86_multiboot_info, used by crt0.S */
GEN_ABSOLUTE_SYM(__X86_MULTIBOOT_INFO_SIZEOF,
sizeof(struct x86_multiboot_info));
GEN_ABS_SYM_END

5
arch/x86/core/offsets/intel64_offsets.c Normal file
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/*
* Copyright (c) 2019 Intel Corp.
* SPDX-License-Identifier: Apache-2.0
*/

75
arch/x86/core/offsets/offsets.c
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@ -1,79 +1,14 @@
/*
* Copyright (c) 2010-2014 Wind River Systems, Inc.
*
* Copyright (c) 2019 Intel Corp.
* SPDX-License-Identifier: Apache-2.0
*/
/**
* @file
* @brief Kernel structure member offset definition file
*
* This module is responsible for the generation of the absolute symbols whose
* value represents the member offsets for various IA-32 structures.
*
* All of the absolute symbols defined by this module will be present in the
* final kernel ELF image (due to the linker's reference to the _OffsetAbsSyms
* symbol).
*
* INTERNAL
* It is NOT necessary to define the offset for every member of a structure.
* Typically, only those members that are accessed by assembly language routines
* are defined; however, it doesn't hurt to define all fields for the sake of
* completeness.
*/
#include <gen_offset.h> /* located in kernel/include */
/* list of headers that define whose structure offsets will be generated */
#include <kernel_structs.h>
#include <ia32/mmustructs.h>
#include <arch/x86/multiboot.h>
#include <kernel_offsets.h>
#if defined(CONFIG_LAZY_FP_SHARING)
GEN_OFFSET_SYM(_thread_arch_t, excNestCount);
#ifdef CONFIG_X86_LONGMODE
#include "intel64_offsets.c"
#else
#include "ia32_offsets.c"
#endif
GEN_OFFSET_SYM(_thread_arch_t, preempFloatReg);
#ifdef CONFIG_USERSPACE
GEN_ABSOLUTE_SYM(Z_X86_PDPT_SIZE, sizeof(struct x86_mmu_pdpt));
#endif
/**
* size of the struct k_thread structure sans save area for floating
* point regs
*/
GEN_ABSOLUTE_SYM(_K_THREAD_NO_FLOAT_SIZEOF,
sizeof(struct k_thread) - sizeof(tPreempFloatReg));
GEN_OFFSET_SYM(_callee_saved_t, esp);
/* z_arch_esf_t structure member offsets */
GEN_OFFSET_SYM(z_arch_esf_t, esp);
GEN_OFFSET_SYM(z_arch_esf_t, ebp);
GEN_OFFSET_SYM(z_arch_esf_t, ebx);
GEN_OFFSET_SYM(z_arch_esf_t, esi);
GEN_OFFSET_SYM(z_arch_esf_t, edi);
GEN_OFFSET_SYM(z_arch_esf_t, edx);
GEN_OFFSET_SYM(z_arch_esf_t, ecx);
GEN_OFFSET_SYM(z_arch_esf_t, eax);
GEN_OFFSET_SYM(z_arch_esf_t, errorCode);
GEN_OFFSET_SYM(z_arch_esf_t, eip);
GEN_OFFSET_SYM(z_arch_esf_t, cs);
GEN_OFFSET_SYM(z_arch_esf_t, eflags);
/* tTaskStateSegment structure member offsets */
/* size of the MMU_REGION structure. Used by linker scripts */
GEN_ABSOLUTE_SYM(__MMU_REGION_SIZEOF, sizeof(struct mmu_region));
/* size of struct x86_multiboot_info, used by crt0.S */
GEN_ABSOLUTE_SYM(__X86_MULTIBOOT_INFO_SIZEOF,