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/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_GDBPARSED(MNT_NOSUID)
 78LX_GDBPARSED(MNT_NODEV)
 79LX_GDBPARSED(MNT_NOEXEC)
 80LX_GDBPARSED(MNT_NOATIME)
 81LX_GDBPARSED(MNT_NODIRATIME)
 82LX_GDBPARSED(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)
173LX_CONFIG(CONFIG_BPF)
174LX_CONFIG(CONFIG_BPF_JIT)
175LX_CONFIG(CONFIG_BPF_SYSCALL)