scripts/gdb/linux/constants.py.in

   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)