1/* 2 * gdb helper commands and functions for Linux kernel debugging 3 * 4 * Kernel constants derived from include files. 5 * 6 * Copyright (c) 2016 Linaro Ltd 7 * 8 * Authors: 9 * Kieran Bingham <kieran.bingham@linaro.org> 10 * 11 * This work is licensed under the terms of the GNU GPL version 2. 12 * 13 */ 14 15#include <linux/clk-provider.h> 16#include <linux/fs.h> 17#include <linux/hrtimer.h> 18#include <linux/irq.h> 19#include <linux/mount.h> 20#include <linux/of_fdt.h> 21#include <linux/page_ext.h> 22#include <linux/radix-tree.h> 23#include <linux/maple_tree.h> 24#include <linux/slab.h> 25#include <linux/threads.h> 26#include <linux/vmalloc.h> 27 28/* We need to stringify expanded macros so that they can be parsed */ 29 30#define STRING(x) #x 31#define XSTRING(x) STRING(x) 32 33#define LX_VALUE(x) LX_##x = x 34#define LX_GDBPARSED(x) LX_##x = gdb.parse_and_eval(XSTRING(x)) 35 36/* 37 * IS_ENABLED generates (a || b) which is not compatible with python 38 * We can only switch on configuration items we know are available 39 * Therefore - IS_BUILTIN() is more appropriate 40 */ 41#define LX_CONFIG(x) LX_##x = IS_BUILTIN(x) 42 43/* The build system will take care of deleting everything above this marker */ 44<!-- end-c-headers --> 45 46import gdb 47 48LX_CONFIG(CONFIG_DEBUG_INFO_REDUCED) 49 50/* linux/clk-provider.h */ 51if IS_BUILTIN(CONFIG_COMMON_CLK): 52 LX_GDBPARSED(CLK_GET_RATE_NOCACHE) 53 54/* linux/fs.h */ 55LX_GDBPARSED(SB_RDONLY) 56LX_GDBPARSED(SB_SYNCHRONOUS) 57LX_GDBPARSED(SB_MANDLOCK) 58LX_GDBPARSED(SB_DIRSYNC) 59LX_GDBPARSED(SB_NOATIME) 60LX_GDBPARSED(SB_NODIRATIME) 61 62/* linux/htimer.h */ 63LX_GDBPARSED(hrtimer_resolution) 64 65/* linux/irq.h */ 66LX_GDBPARSED(IRQD_LEVEL) 67LX_GDBPARSED(IRQ_HIDDEN) 68 69/* linux/module.h */ 70if IS_BUILTIN(CONFIG_MODULES): 71 LX_GDBPARSED(MOD_TEXT) 72 LX_GDBPARSED(MOD_DATA) 73 LX_GDBPARSED(MOD_RODATA) 74 LX_GDBPARSED(MOD_RO_AFTER_INIT) 75 76/* linux/mount.h */ 77LX_VALUE(MNT_NOSUID) 78LX_VALUE(MNT_NODEV) 79LX_VALUE(MNT_NOEXEC) 80LX_VALUE(MNT_NOATIME) 81LX_VALUE(MNT_NODIRATIME) 82LX_VALUE(MNT_RELATIME) 83 84/* linux/threads.h */ 85LX_VALUE(NR_CPUS) 86 87/* linux/of_fdt.h> */ 88LX_VALUE(OF_DT_HEADER) 89 90/* linux/radix-tree.h */ 91LX_GDBPARSED(RADIX_TREE_ENTRY_MASK) 92LX_GDBPARSED(RADIX_TREE_INTERNAL_NODE) 93LX_GDBPARSED(RADIX_TREE_MAP_SIZE) 94LX_GDBPARSED(RADIX_TREE_MAP_SHIFT) 95LX_GDBPARSED(RADIX_TREE_MAP_MASK) 96 97/* linux/maple_tree.h */ 98LX_VALUE(MAPLE_NODE_SLOTS) 99LX_VALUE(MAPLE_RANGE64_SLOTS) 100LX_VALUE(MAPLE_ARANGE64_SLOTS) 101LX_GDBPARSED(MAPLE_NODE_MASK) 102 103/* linux/vmalloc.h */ 104LX_VALUE(VM_IOREMAP) 105LX_VALUE(VM_ALLOC) 106LX_VALUE(VM_MAP) 107LX_VALUE(VM_USERMAP) 108LX_VALUE(VM_DMA_COHERENT) 109 110/* linux/page_ext.h */ 111if IS_BUILTIN(CONFIG_PAGE_OWNER): 112 LX_GDBPARSED(PAGE_EXT_OWNER) 113 LX_GDBPARSED(PAGE_EXT_OWNER_ALLOCATED) 114 115/* linux/slab.h */ 116LX_GDBPARSED(SLAB_RED_ZONE) 117LX_GDBPARSED(SLAB_POISON) 118LX_GDBPARSED(SLAB_KMALLOC) 119LX_GDBPARSED(SLAB_HWCACHE_ALIGN) 120LX_GDBPARSED(SLAB_CACHE_DMA) 121LX_GDBPARSED(SLAB_CACHE_DMA32) 122LX_GDBPARSED(SLAB_STORE_USER) 123LX_GDBPARSED(SLAB_PANIC) 124 125/* Kernel Configs */ 126LX_CONFIG(CONFIG_GENERIC_CLOCKEVENTS) 127LX_CONFIG(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST) 128LX_CONFIG(CONFIG_HIGH_RES_TIMERS) 129LX_CONFIG(CONFIG_NR_CPUS) 130LX_CONFIG(CONFIG_OF) 131LX_CONFIG(CONFIG_TICK_ONESHOT) 132LX_CONFIG(CONFIG_GENERIC_IRQ_SHOW_LEVEL) 133LX_CONFIG(CONFIG_X86_LOCAL_APIC) 134LX_CONFIG(CONFIG_SMP) 135LX_CONFIG(CONFIG_X86_THERMAL_VECTOR) 136LX_CONFIG(CONFIG_X86_MCE_THRESHOLD) 137LX_CONFIG(CONFIG_X86_MCE_AMD) 138LX_CONFIG(CONFIG_X86_MCE) 139LX_CONFIG(CONFIG_X86_IO_APIC) 140/* 141 * CONFIG_KVM can be "m" but it affects common code too. Use CONFIG_KVM_COMMON 142 * as a proxy for IS_ENABLED(CONFIG_KVM). 143 */ 144LX_CONFIG_KVM = IS_BUILTIN(CONFIG_KVM_COMMON) 145LX_CONFIG(CONFIG_NUMA) 146LX_CONFIG(CONFIG_ARM64) 147LX_CONFIG(CONFIG_ARM64_4K_PAGES) 148LX_CONFIG(CONFIG_ARM64_16K_PAGES) 149LX_CONFIG(CONFIG_ARM64_64K_PAGES) 150if IS_BUILTIN(CONFIG_ARM64): 151 LX_VALUE(CONFIG_ARM64_PA_BITS) 152 LX_VALUE(CONFIG_ARM64_VA_BITS) 153 LX_VALUE(CONFIG_PAGE_SHIFT) 154 LX_VALUE(CONFIG_ARCH_FORCE_MAX_ORDER) 155LX_CONFIG(CONFIG_SPARSEMEM) 156LX_CONFIG(CONFIG_SPARSEMEM_EXTREME) 157LX_CONFIG(CONFIG_SPARSEMEM_VMEMMAP) 158LX_CONFIG(CONFIG_KASAN) 159LX_CONFIG(CONFIG_KASAN_GENERIC) 160LX_CONFIG(CONFIG_KASAN_SW_TAGS) 161LX_CONFIG(CONFIG_KASAN_HW_TAGS) 162if IS_BUILTIN(CONFIG_KASAN_GENERIC) or IS_BUILTIN(CONFIG_KASAN_SW_TAGS): 163 LX_VALUE(CONFIG_KASAN_SHADOW_OFFSET) 164LX_CONFIG(CONFIG_VMAP_STACK) 165if IS_BUILTIN(CONFIG_NUMA): 166 LX_VALUE(CONFIG_NODES_SHIFT) 167LX_CONFIG(CONFIG_DEBUG_VIRTUAL) 168LX_CONFIG(CONFIG_STACKDEPOT) 169LX_CONFIG(CONFIG_PAGE_OWNER) 170LX_CONFIG(CONFIG_SLUB_DEBUG) 171LX_CONFIG(CONFIG_SLAB_FREELIST_HARDENED) 172LX_CONFIG(CONFIG_MMU) 173