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 45 import gdb 46 47 LX_CONFIG(CONFIG_DEBUG_INFO_REDUCED) 48 49 /* linux/clk-provider.h */ 50 if IS_BUILTIN(CONFIG_COMMON_CLK): 51 LX_GDBPARSED(CLK_GET_RATE_NOCACHE) 52 53 /* linux/fs.h */ 54 LX_GDBPARSED(SB_RDONLY) 55 LX_GDBPARSED(SB_SYNCHRONOUS) 56 LX_GDBPARSED(SB_MANDLOCK) 57 LX_GDBPARSED(SB_DIRSYNC) 58 LX_GDBPARSED(SB_NOATIME) 59 LX_GDBPARSED(SB_NODIRATIME) 60 61 /* linux/htimer.h */ 62 LX_GDBPARSED(hrtimer_resolution) 63 64 /* linux/irq.h */ 65 LX_GDBPARSED(IRQD_LEVEL) 66 LX_GDBPARSED(IRQ_HIDDEN) 67 68 /* linux/module.h */ 69 if 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 */ 76 LX_VALUE(MNT_NOSUID) 77 LX_VALUE(MNT_NODEV) 78 LX_VALUE(MNT_NOEXEC) 79 LX_VALUE(MNT_NOATIME) 80 LX_VALUE(MNT_NODIRATIME) 81 LX_VALUE(MNT_RELATIME) 82 83 /* linux/threads.h */ 84 LX_VALUE(NR_CPUS) 85 86 /* linux/of_fdt.h> */ 87 LX_VALUE(OF_DT_HEADER) 88 89 /* linux/radix-tree.h */ 90 LX_GDBPARSED(RADIX_TREE_ENTRY_MASK) 91 LX_GDBPARSED(RADIX_TREE_INTERNAL_NODE) 92 LX_GDBPARSED(RADIX_TREE_MAP_SIZE) 93 LX_GDBPARSED(RADIX_TREE_MAP_SHIFT) 94 LX_GDBPARSED(RADIX_TREE_MAP_MASK) 95 96 /* linux/vmalloc.h */ 97 LX_VALUE(VM_IOREMAP) 98 LX_VALUE(VM_ALLOC) 99 LX_VALUE(VM_MAP) 100 LX_VALUE(VM_USERMAP) 101 LX_VALUE(VM_DMA_COHERENT) 102 103 /* linux/page_ext.h */ 104 if IS_BUILTIN(CONFIG_PAGE_OWNER): 105 LX_GDBPARSED(PAGE_EXT_OWNER) 106 LX_GDBPARSED(PAGE_EXT_OWNER_ALLOCATED) 107 108 /* linux/slab.h */ 109 LX_GDBPARSED(SLAB_RED_ZONE) 110 LX_GDBPARSED(SLAB_POISON) 111 LX_GDBPARSED(SLAB_KMALLOC) 112 LX_GDBPARSED(SLAB_HWCACHE_ALIGN) 113 LX_GDBPARSED(SLAB_CACHE_DMA) 114 LX_GDBPARSED(SLAB_CACHE_DMA32) 115 LX_GDBPARSED(SLAB_STORE_USER) 116 LX_GDBPARSED(SLAB_PANIC) 117 118 /* Kernel Configs */ 119 LX_CONFIG(CONFIG_GENERIC_CLOCKEVENTS) 120 LX_CONFIG(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST) 121 LX_CONFIG(CONFIG_HIGH_RES_TIMERS) 122 LX_CONFIG(CONFIG_NR_CPUS) 123 LX_CONFIG(CONFIG_OF) 124 LX_CONFIG(CONFIG_TICK_ONESHOT) 125 LX_CONFIG(CONFIG_GENERIC_IRQ_SHOW_LEVEL) 126 LX_CONFIG(CONFIG_X86_LOCAL_APIC) 127 LX_CONFIG(CONFIG_SMP) 128 LX_CONFIG(CONFIG_X86_THERMAL_VECTOR) 129 LX_CONFIG(CONFIG_X86_MCE_THRESHOLD) 130 LX_CONFIG(CONFIG_X86_MCE_AMD) 131 LX_CONFIG(CONFIG_X86_MCE) 132 LX_CONFIG(CONFIG_X86_IO_APIC) 133 /* 134 * CONFIG_KVM can be "m" but it affects common code too. Use CONFIG_KVM_COMMON 135 * as a proxy for IS_ENABLED(CONFIG_KVM). 136 */ 137 LX_CONFIG_KVM = IS_BUILTIN(CONFIG_KVM_COMMON) 138 LX_CONFIG(CONFIG_NUMA) 139 LX_CONFIG(CONFIG_ARM64) 140 LX_CONFIG(CONFIG_ARM64_4K_PAGES) 141 LX_CONFIG(CONFIG_ARM64_16K_PAGES) 142 LX_CONFIG(CONFIG_ARM64_64K_PAGES) 143 if IS_BUILTIN(CONFIG_ARM64): 144 LX_VALUE(CONFIG_ARM64_PA_BITS) 145 LX_VALUE(CONFIG_ARM64_VA_BITS) 146 LX_VALUE(CONFIG_PAGE_SHIFT) 147 LX_VALUE(CONFIG_ARCH_FORCE_MAX_ORDER) 148 LX_CONFIG(CONFIG_SPARSEMEM) 149 LX_CONFIG(CONFIG_SPARSEMEM_EXTREME) 150 LX_CONFIG(CONFIG_SPARSEMEM_VMEMMAP) 151 LX_CONFIG(CONFIG_KASAN) 152 LX_CONFIG(CONFIG_KASAN_GENERIC) 153 LX_CONFIG(CONFIG_KASAN_SW_TAGS) 154 LX_CONFIG(CONFIG_KASAN_HW_TAGS) 155 if IS_BUILTIN(CONFIG_KASAN_GENERIC) or IS_BUILTIN(CONFIG_KASAN_SW_TAGS): 156 LX_VALUE(CONFIG_KASAN_SHADOW_OFFSET) 157 LX_CONFIG(CONFIG_VMAP_STACK) 158 if IS_BUILTIN(CONFIG_NUMA): 159 LX_VALUE(CONFIG_NODES_SHIFT) 160 LX_CONFIG(CONFIG_DEBUG_VIRTUAL) 161 LX_CONFIG(CONFIG_STACKDEPOT) 162 LX_CONFIG(CONFIG_PAGE_OWNER) 163 LX_CONFIG(CONFIG_SLUB_DEBUG) 164 LX_CONFIG(CONFIG_SLAB_FREELIST_HARDENED) 165 LX_CONFIG(CONFIG_MMU)
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