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/slab.h> 24#include <linux/threads.h> 25#include <linux/vmalloc.h> 26 27/* We need to stringify expanded macros so that they can be parsed */ 28 29#define STRING(x) #x 30#define XSTRING(x) STRING(x) 31 32#define LX_VALUE(x) LX_##x = x 33#define LX_GDBPARSED(x) LX_##x = gdb.parse_and_eval(XSTRING(x)) 34 35/* 36 * IS_ENABLED generates (a || b) which is not compatible with python 37 * We can only switch on configuration items we know are available 38 * Therefore - IS_BUILTIN() is more appropriate 39 */ 40#define LX_CONFIG(x) LX_##x = IS_BUILTIN(x) 41 42/* The build system will take care of deleting everything above this marker */ 43<!-- end-c-headers --> 44 45import gdb 46 47LX_CONFIG(CONFIG_DEBUG_INFO_REDUCED) 48 49/* linux/clk-provider.h */ 50if IS_BUILTIN(CONFIG_COMMON_CLK): 51 LX_GDBPARSED(CLK_GET_RATE_NOCACHE) 52 53/* linux/fs.h */ 54LX_GDBPARSED(SB_RDONLY) 55LX_GDBPARSED(SB_SYNCHRONOUS) 56LX_GDBPARSED(SB_MANDLOCK) 57LX_GDBPARSED(SB_DIRSYNC) 58LX_GDBPARSED(SB_NOATIME) 59LX_GDBPARSED(SB_NODIRATIME) 60 61/* linux/htimer.h */ 62LX_GDBPARSED(hrtimer_resolution) 63 64/* linux/irq.h */ 65LX_GDBPARSED(IRQD_LEVEL) 66LX_GDBPARSED(IRQ_HIDDEN) 67 68/* linux/module.h */ 69if IS_BUILTIN(CONFIG_MODULES): 70 LX_GDBPARSED(MOD_TEXT) 71 LX_GDBPARSED(MOD_DATA) 72 LX_GDBPARSED(MOD_RODATA) 73 LX_GDBPARSED(MOD_RO_AFTER_INIT) 74 75/* linux/mount.h */ 76LX_VALUE(MNT_NOSUID) 77LX_VALUE(MNT_NODEV) 78LX_VALUE(MNT_NOEXEC) 79LX_VALUE(MNT_NOATIME) 80LX_VALUE(MNT_NODIRATIME) 81LX_VALUE(MNT_RELATIME) 82 83/* linux/threads.h */ 84LX_VALUE(NR_CPUS) 85 86/* linux/of_fdt.h> */ 87LX_VALUE(OF_DT_HEADER) 88 89/* linux/radix-tree.h */ 90LX_GDBPARSED(RADIX_TREE_ENTRY_MASK) 91LX_GDBPARSED(RADIX_TREE_INTERNAL_NODE) 92LX_GDBPARSED(RADIX_TREE_MAP_SIZE) 93LX_GDBPARSED(RADIX_TREE_MAP_SHIFT) 94LX_GDBPARSED(RADIX_TREE_MAP_MASK) 95 96/* linux/vmalloc.h */ 97LX_VALUE(VM_IOREMAP) 98LX_VALUE(VM_ALLOC) 99LX_VALUE(VM_MAP) 100LX_VALUE(VM_USERMAP) 101LX_VALUE(VM_DMA_COHERENT) 102 103/* linux/page_ext.h */ 104if IS_BUILTIN(CONFIG_PAGE_OWNER): 105 LX_GDBPARSED(PAGE_EXT_OWNER) 106 LX_GDBPARSED(PAGE_EXT_OWNER_ALLOCATED) 107 108/* linux/slab.h */ 109LX_GDBPARSED(SLAB_RED_ZONE) 110LX_GDBPARSED(SLAB_POISON) 111LX_GDBPARSED(SLAB_KMALLOC) 112LX_GDBPARSED(SLAB_HWCACHE_ALIGN) 113LX_GDBPARSED(SLAB_CACHE_DMA) 114LX_GDBPARSED(SLAB_CACHE_DMA32) 115LX_GDBPARSED(SLAB_STORE_USER) 116LX_GDBPARSED(SLAB_PANIC) 117 118/* Kernel Configs */ 119LX_CONFIG(CONFIG_GENERIC_CLOCKEVENTS) 120LX_CONFIG(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST) 121LX_CONFIG(CONFIG_HIGH_RES_TIMERS) 122LX_CONFIG(CONFIG_NR_CPUS) 123LX_CONFIG(CONFIG_OF) 124LX_CONFIG(CONFIG_TICK_ONESHOT) 125LX_CONFIG(CONFIG_GENERIC_IRQ_SHOW_LEVEL) 126LX_CONFIG(CONFIG_X86_LOCAL_APIC) 127LX_CONFIG(CONFIG_SMP) 128LX_CONFIG(CONFIG_X86_THERMAL_VECTOR) 129LX_CONFIG(CONFIG_X86_MCE_THRESHOLD) 130LX_CONFIG(CONFIG_X86_MCE_AMD) 131LX_CONFIG(CONFIG_X86_MCE) 132LX_CONFIG(CONFIG_X86_IO_APIC) 133LX_CONFIG(CONFIG_HAVE_KVM) 134LX_CONFIG(CONFIG_NUMA) 135LX_CONFIG(CONFIG_ARM64) 136LX_CONFIG(CONFIG_ARM64_4K_PAGES) 137LX_CONFIG(CONFIG_ARM64_16K_PAGES) 138LX_CONFIG(CONFIG_ARM64_64K_PAGES) 139if IS_BUILTIN(CONFIG_ARM64): 140 LX_VALUE(CONFIG_ARM64_PA_BITS) 141 LX_VALUE(CONFIG_ARM64_VA_BITS) 142 LX_VALUE(CONFIG_ARM64_PAGE_SHIFT) 143 LX_VALUE(CONFIG_ARCH_FORCE_MAX_ORDER) 144LX_CONFIG(CONFIG_SPARSEMEM) 145LX_CONFIG(CONFIG_SPARSEMEM_EXTREME) 146LX_CONFIG(CONFIG_SPARSEMEM_VMEMMAP) 147LX_CONFIG(CONFIG_KASAN) 148LX_CONFIG(CONFIG_KASAN_GENERIC) 149LX_CONFIG(CONFIG_KASAN_SW_TAGS) 150LX_CONFIG(CONFIG_KASAN_HW_TAGS) 151if IS_BUILTIN(CONFIG_KASAN_GENERIC) or IS_BUILTIN(CONFIG_KASAN_SW_TAGS): 152 LX_VALUE(CONFIG_KASAN_SHADOW_OFFSET) 153LX_CONFIG(CONFIG_VMAP_STACK) 154if IS_BUILTIN(CONFIG_NUMA): 155 LX_VALUE(CONFIG_NODES_SHIFT) 156LX_CONFIG(CONFIG_DEBUG_VIRTUAL) 157LX_CONFIG(CONFIG_STACKDEPOT) 158LX_CONFIG(CONFIG_PAGE_OWNER) 159LX_CONFIG(CONFIG_SLUB_DEBUG) 160LX_CONFIG(CONFIG_SLAB_FREELIST_HARDENED) 161LX_CONFIG(CONFIG_MMU) 162