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kasld.h
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kasld.h
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// This file is part of KASLD - https://github.com/bcoles/kasld
//
// Expected kernel address space values for supported architectures.
//
// - KERNEL_VAS_START: Expected virtual address for start of the kernel
// virtual address space (VAS).
// (eg. 0xc0000000 for 32-bit systems with 3GB vmsplit)
//
// - KERNEL_VAS_END: Expected end of kernel virtual address space.
// (including modules, I/O, guard regions, ...)
//
// - KERNEL_BASE_MIN: Expected minimum possible kernel base virtual address.
//
// - KERNEL_BASE_MAX: Expected maximum possible kernel base virtual address.
//
// - MODULES_START: Expected start virtual address for kernel modules.
//
// - MODULES_END: Expected end virtual address for kernel modules.
//
// - KERNEL_ALIGN: Expected kernel address alignment.
// (usually 2MiB on modern systems)
//
// - KERNEL_TEXT_DEFAULT: Default kernel base virtual address when KASLR is
// disabled (including text offset). This value is
// calculated automatically based on above values.
//
// The default values should work on most systems, but may need
// to be tweaked for the target system - especially old kernels,
// embedded devices (ie, armv7), or systems with a non-default
// memory layout.
// ---
// <[email protected]>
#define MB 0x100000ul
#define GB 0x40000000ul
#if defined(__x86_64__) || defined(__amd64__)
#include "kasld/x86_64.h"
#elif defined(__i386__)
#include "kasld/x86_32.h"
#elif defined(__aarch64__)
#include "kasld/arm64.h"
#elif defined(__arm__) || defined(__ARM_ARCH_6__) || \
defined(__ARM_ARCH_6J__) || defined(__ARM_ARCH_6K__) || \
defined(__ARM_ARCH_6Z__) || defined(__ARM_ARCH_6ZK__) || \
defined(__ARM_ARCH_6T2__) || defined(__ARM_ARCH_7__) || \
defined(__ARM_ARCH_7A__) || defined(__ARM_ARCH_7R__) || \
defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7S__)
#include "kasld/arm32.h"
#elif defined(__mips64) || defined(__mips64__)
#include "kasld/mips64.h"
#elif defined(__mips__)
#include "kasld/mips32.h"
#elif defined(__powerpc64__) || defined(__POWERPC64__) || \
defined(__ppc64__) || defined(__PPC64__)
#include "kasld/ppc64.h"
#elif defined(__powerpc__) || defined(__POWERPC__) || defined(__ppc__) || \
defined(__PPC__)
#include "kasld/ppc32.h"
#elif (defined(__riscv) || defined(__riscv__)) && __riscv_xlen == 64
#include "kasld/riscv64.h"
#elif (defined(__riscv) || defined(__riscv__)) && __riscv_xlen == 32
#include "kasld/riscv32.h"
#elif defined(__loongarch__) && __loongarch_grlen == 64
#include "kasld/loongarch64.h"
#elif defined(__s390__) || defined(__s390x__) || defined(__370__) || \
defined(__zarch__)
#include "kasld/s390.h"
#elif defined(__sparc__)
#include "kasld/sparc.h"
#else
#error "Unrecognised architecture!"
#endif
/* -----------------------------------------------------------------------------
* Sanity check configured values
* -----------------------------------------------------------------------------
*/
#if KERNEL_VAS_START > KERNEL_VAS_END
#error "Defined KERNEL_VAS_START is larger than KERNEL_VAS_END"
#endif
#if KERNEL_VAS_START > KERNEL_BASE_MIN
#error "Defined KERNEL_VAS_START is larger than KERNEL_BASE_MIN"
#endif
#if KERNEL_BASE_MAX > KERNEL_VAS_END
#error "Defined KERNEL_BASE_MAX is larger than KERNEL_VAS_END"
#endif
#if KERNEL_TEXT_DEFAULT > KERNEL_BASE_MAX
#error "Generated KERNEL_TEXT_DEFAULT is larger than KERNEL_BASE_MAX"
#endif
#if KERNEL_TEXT_DEFAULT < KERNEL_BASE_MIN
#error "Generated KERNEL_TEXT_DEFAULT is smaller than KERNEL_BASE_MIN"
#endif
// Suppress GCC compiler warning when compiled with -pedantic:
// warning: ISO C forbids an empty translation unit [-Wpedantic]
typedef int make_iso_compilers_happy;