Merge commit '73450231ffff' into android-4.4

Synced to the latest commit for merge:
73450231ff f2fs: run fstrim asynchronously if runtime discard is on

Change-Id: Icec09d14f2768dfaa1a0691eac275f68adbf470b
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
This commit is contained in:
Jaegeuk Kim 2018-07-30 17:18:57 -07:00
commit b826c97998
2 changed files with 523 additions and 110 deletions

411
include/linux/fscrypto.h Normal file
View file

@ -0,0 +1,411 @@
/*
* General per-file encryption definition
*
* Copyright (C) 2015, Google, Inc.
*
* Written by Michael Halcrow, 2015.
* Modified by Jaegeuk Kim, 2015.
*/
#ifndef _LINUX_FSCRYPTO_H
#define _LINUX_FSCRYPTO_H
#include <linux/key.h>
#include <linux/fs.h>
#include <linux/mm.h>
#include <linux/bio.h>
#include <linux/dcache.h>
#include <crypto/skcipher.h>
#include <uapi/linux/fs.h>
#define FS_KEY_DERIVATION_NONCE_SIZE 16
#define FS_ENCRYPTION_CONTEXT_FORMAT_V1 1
#define FS_POLICY_FLAGS_PAD_4 0x00
#define FS_POLICY_FLAGS_PAD_8 0x01
#define FS_POLICY_FLAGS_PAD_16 0x02
#define FS_POLICY_FLAGS_PAD_32 0x03
#define FS_POLICY_FLAGS_PAD_MASK 0x03
#define FS_POLICY_FLAGS_VALID 0x03
/* Encryption algorithms */
#define FS_ENCRYPTION_MODE_INVALID 0
#define FS_ENCRYPTION_MODE_AES_256_XTS 1
#define FS_ENCRYPTION_MODE_AES_256_GCM 2
#define FS_ENCRYPTION_MODE_AES_256_CBC 3
#define FS_ENCRYPTION_MODE_AES_256_CTS 4
/**
* Encryption context for inode
*
* Protector format:
* 1 byte: Protector format (1 = this version)
* 1 byte: File contents encryption mode
* 1 byte: File names encryption mode
* 1 byte: Flags
* 8 bytes: Master Key descriptor
* 16 bytes: Encryption Key derivation nonce
*/
struct fscrypt_context {
u8 format;
u8 contents_encryption_mode;
u8 filenames_encryption_mode;
u8 flags;
u8 master_key_descriptor[FS_KEY_DESCRIPTOR_SIZE];
u8 nonce[FS_KEY_DERIVATION_NONCE_SIZE];
} __packed;
/* Encryption parameters */
#define FS_XTS_TWEAK_SIZE 16
#define FS_AES_128_ECB_KEY_SIZE 16
#define FS_AES_256_GCM_KEY_SIZE 32
#define FS_AES_256_CBC_KEY_SIZE 32
#define FS_AES_256_CTS_KEY_SIZE 32
#define FS_AES_256_XTS_KEY_SIZE 64
#define FS_MAX_KEY_SIZE 64
#define FS_KEY_DESC_PREFIX "fscrypt:"
#define FS_KEY_DESC_PREFIX_SIZE 8
/* This is passed in from userspace into the kernel keyring */
struct fscrypt_key {
u32 mode;
u8 raw[FS_MAX_KEY_SIZE];
u32 size;
} __packed;
struct fscrypt_info {
u8 ci_data_mode;
u8 ci_filename_mode;
u8 ci_flags;
struct crypto_skcipher *ci_ctfm;
struct key *ci_keyring_key;
u8 ci_master_key[FS_KEY_DESCRIPTOR_SIZE];
};
#define FS_CTX_REQUIRES_FREE_ENCRYPT_FL 0x00000001
#define FS_WRITE_PATH_FL 0x00000002
struct fscrypt_ctx {
union {
struct {
struct page *bounce_page; /* Ciphertext page */
struct page *control_page; /* Original page */
} w;
struct {
struct bio *bio;
struct work_struct work;
} r;
struct list_head free_list; /* Free list */
};
u8 flags; /* Flags */
u8 mode; /* Encryption mode for tfm */
};
struct fscrypt_completion_result {
struct completion completion;
int res;
};
#define DECLARE_FS_COMPLETION_RESULT(ecr) \
struct fscrypt_completion_result ecr = { \
COMPLETION_INITIALIZER((ecr).completion), 0 }
#define FS_FNAME_NUM_SCATTER_ENTRIES 4
#define FS_CRYPTO_BLOCK_SIZE 16
#define FS_FNAME_CRYPTO_DIGEST_SIZE 32
/**
* For encrypted symlinks, the ciphertext length is stored at the beginning
* of the string in little-endian format.
*/
struct fscrypt_symlink_data {
__le16 len;
char encrypted_path[1];
} __packed;
/**
* This function is used to calculate the disk space required to
* store a filename of length l in encrypted symlink format.
*/
static inline u32 fscrypt_symlink_data_len(u32 l)
{
if (l < FS_CRYPTO_BLOCK_SIZE)
l = FS_CRYPTO_BLOCK_SIZE;
return (l + sizeof(struct fscrypt_symlink_data) - 1);
}
struct fscrypt_str {
unsigned char *name;
u32 len;
};
struct fscrypt_name {
const struct qstr *usr_fname;
struct fscrypt_str disk_name;
u32 hash;
u32 minor_hash;
struct fscrypt_str crypto_buf;
};
#define FSTR_INIT(n, l) { .name = n, .len = l }
#define FSTR_TO_QSTR(f) QSTR_INIT((f)->name, (f)->len)
#define fname_name(p) ((p)->disk_name.name)
#define fname_len(p) ((p)->disk_name.len)
/*
* crypto opertions for filesystems
*/
struct fscrypt_operations {
int (*get_context)(struct inode *, void *, size_t);
int (*key_prefix)(struct inode *, u8 **);
int (*prepare_context)(struct inode *);
int (*set_context)(struct inode *, const void *, size_t, void *);
int (*dummy_context)(struct inode *);
bool (*is_encrypted)(struct inode *);
bool (*empty_dir)(struct inode *);
unsigned (*max_namelen)(struct inode *);
};
static inline bool fscrypt_dummy_context_enabled(struct inode *inode)
{
if (inode->i_sb->s_cop->dummy_context &&
inode->i_sb->s_cop->dummy_context(inode))
return true;
return false;
}
static inline bool fscrypt_valid_contents_enc_mode(u32 mode)
{
return (mode == FS_ENCRYPTION_MODE_AES_256_XTS);
}
static inline bool fscrypt_valid_filenames_enc_mode(u32 mode)
{
return (mode == FS_ENCRYPTION_MODE_AES_256_CTS);
}
static inline bool fscrypt_is_dot_dotdot(const struct qstr *str)
{
if (str->len == 1 && str->name[0] == '.')
return true;
if (str->len == 2 && str->name[0] == '.' && str->name[1] == '.')
return true;
return false;
}
static inline struct page *fscrypt_control_page(struct page *page)
{
#if IS_ENABLED(CONFIG_FS_ENCRYPTION)
return ((struct fscrypt_ctx *)page_private(page))->w.control_page;
#else
WARN_ON_ONCE(1);
return ERR_PTR(-EINVAL);
#endif
}
static inline int fscrypt_has_encryption_key(struct inode *inode)
{
#if IS_ENABLED(CONFIG_FS_ENCRYPTION)
return (inode->i_crypt_info != NULL);
#else
return 0;
#endif
}
static inline void fscrypt_set_encrypted_dentry(struct dentry *dentry)
{
#if IS_ENABLED(CONFIG_FS_ENCRYPTION)
spin_lock(&dentry->d_lock);
dentry->d_flags |= DCACHE_ENCRYPTED_WITH_KEY;
spin_unlock(&dentry->d_lock);
#endif
}
#if IS_ENABLED(CONFIG_FS_ENCRYPTION)
extern const struct dentry_operations fscrypt_d_ops;
#endif
static inline void fscrypt_set_d_op(struct dentry *dentry)
{
#if IS_ENABLED(CONFIG_FS_ENCRYPTION)
d_set_d_op(dentry, &fscrypt_d_ops);
#endif
}
#if IS_ENABLED(CONFIG_FS_ENCRYPTION)
/* crypto.c */
extern struct kmem_cache *fscrypt_info_cachep;
int fscrypt_initialize(void);
extern struct fscrypt_ctx *fscrypt_get_ctx(struct inode *, gfp_t);
extern void fscrypt_release_ctx(struct fscrypt_ctx *);
extern struct page *fscrypt_encrypt_page(struct inode *, struct page *, gfp_t);
extern int fscrypt_decrypt_page(struct page *);
extern void fscrypt_decrypt_bio_pages(struct fscrypt_ctx *, struct bio *);
extern void fscrypt_pullback_bio_page(struct page **, bool);
extern void fscrypt_restore_control_page(struct page *);
extern int fscrypt_zeroout_range(struct inode *, pgoff_t, sector_t,
unsigned int);
/* policy.c */
extern int fscrypt_ioctl_set_policy(struct file *, const void __user *);
extern int fscrypt_ioctl_get_policy(struct file *, void __user *);
extern int fscrypt_has_permitted_context(struct inode *, struct inode *);
extern int fscrypt_inherit_context(struct inode *, struct inode *,
void *, bool);
/* keyinfo.c */
extern int get_crypt_info(struct inode *);
extern int fscrypt_get_encryption_info(struct inode *);
extern void fscrypt_put_encryption_info(struct inode *, struct fscrypt_info *);
/* fname.c */
extern int fscrypt_setup_filename(struct inode *, const struct qstr *,
int lookup, struct fscrypt_name *);
extern void fscrypt_free_filename(struct fscrypt_name *);
extern u32 fscrypt_fname_encrypted_size(struct inode *, u32);
extern int fscrypt_fname_alloc_buffer(struct inode *, u32,
struct fscrypt_str *);
extern void fscrypt_fname_free_buffer(struct fscrypt_str *);
extern int fscrypt_fname_disk_to_usr(struct inode *, u32, u32,
const struct fscrypt_str *, struct fscrypt_str *);
extern int fscrypt_fname_usr_to_disk(struct inode *, const struct qstr *,
struct fscrypt_str *);
#endif
/* crypto.c */
static inline struct fscrypt_ctx *fscrypt_notsupp_get_ctx(struct inode *i,
gfp_t f)
{
return ERR_PTR(-EOPNOTSUPP);
}
static inline void fscrypt_notsupp_release_ctx(struct fscrypt_ctx *c)
{
return;
}
static inline struct page *fscrypt_notsupp_encrypt_page(struct inode *i,
struct page *p, gfp_t f)
{
return ERR_PTR(-EOPNOTSUPP);
}
static inline int fscrypt_notsupp_decrypt_page(struct page *p)
{
return -EOPNOTSUPP;
}
static inline void fscrypt_notsupp_decrypt_bio_pages(struct fscrypt_ctx *c,
struct bio *b)
{
return;
}
static inline void fscrypt_notsupp_pullback_bio_page(struct page **p, bool b)
{
return;
}
static inline void fscrypt_notsupp_restore_control_page(struct page *p)
{
return;
}
static inline int fscrypt_notsupp_zeroout_range(struct inode *i, pgoff_t p,
sector_t s, unsigned int f)
{
return -EOPNOTSUPP;
}
/* policy.c */
static inline int fscrypt_notsupp_ioctl_set_policy(struct file *f,
const void __user *arg)
{
return -EOPNOTSUPP;
}
static inline int fscrypt_notsupp_ioctl_get_policy(struct file *f,
void __user *arg)
{
return -EOPNOTSUPP;
}
static inline int fscrypt_notsupp_has_permitted_context(struct inode *p,
struct inode *i)
{
return 0;
}
static inline int fscrypt_notsupp_inherit_context(struct inode *p,
struct inode *i, void *v, bool b)
{
return -EOPNOTSUPP;
}
/* keyinfo.c */
static inline int fscrypt_notsupp_get_encryption_info(struct inode *i)
{
return -EOPNOTSUPP;
}
static inline void fscrypt_notsupp_put_encryption_info(struct inode *i,
struct fscrypt_info *f)
{
return;
}
/* fname.c */
static inline int fscrypt_notsupp_setup_filename(struct inode *dir,
const struct qstr *iname,
int lookup, struct fscrypt_name *fname)
{
if (dir->i_sb->s_cop->is_encrypted(dir))
return -EOPNOTSUPP;
memset(fname, 0, sizeof(struct fscrypt_name));
fname->usr_fname = iname;
fname->disk_name.name = (unsigned char *)iname->name;
fname->disk_name.len = iname->len;
return 0;
}
static inline void fscrypt_notsupp_free_filename(struct fscrypt_name *fname)
{
return;
}
static inline u32 fscrypt_notsupp_fname_encrypted_size(struct inode *i, u32 s)
{
/* never happens */
WARN_ON(1);
return 0;
}
static inline int fscrypt_notsupp_fname_alloc_buffer(struct inode *inode,
u32 ilen, struct fscrypt_str *crypto_str)
{
return -EOPNOTSUPP;
}
static inline void fscrypt_notsupp_fname_free_buffer(struct fscrypt_str *c)
{
return;
}
static inline int fscrypt_notsupp_fname_disk_to_usr(struct inode *inode,
u32 hash, u32 minor_hash,
const struct fscrypt_str *iname,
struct fscrypt_str *oname)
{
return -EOPNOTSUPP;
}
static inline int fscrypt_notsupp_fname_usr_to_disk(struct inode *inode,
const struct qstr *iname,
struct fscrypt_str *oname)
{
return -EOPNOTSUPP;
}
#endif /* _LINUX_FSCRYPTO_H */

View file

@ -1,4 +1,4 @@
#!/bin/sh
#!/bin/bash
# Generate tags or cscope files
# Usage tags.sh <mode>
#
@ -135,11 +135,6 @@ all_kconfigs()
find_other_sources 'Kconfig*'
}
all_defconfigs()
{
find_sources $ALLSOURCE_ARCHS "defconfig"
}
docscope()
{
(echo \-k; echo \-q; all_target_sources) > cscope.files
@ -151,8 +146,111 @@ dogtags()
all_target_sources | gtags -i -f -
}
# Basic regular expressions with an optional /kind-spec/ for ctags and
# the following limitations:
# - No regex modifiers
# - Use \{0,1\} instead of \?, because etags expects an unescaped ?
# - \s is not working with etags, use a space or [ \t]
# - \w works, but does not match underscores in etags
# - etags regular expressions have to match at the start of a line;
# a ^[^#] is prepended by setup_regex unless an anchor is already present
regex_asm=(
'/^\(ENTRY\|_GLOBAL\)(\([[:alnum:]_\\]*\)).*/\2/'
)
regex_c=(
'/^SYSCALL_DEFINE[0-9](\([[:alnum:]_]*\).*/sys_\1/'
'/^COMPAT_SYSCALL_DEFINE[0-9](\([[:alnum:]_]*\).*/compat_sys_\1/'
'/^TRACE_EVENT(\([[:alnum:]_]*\).*/trace_\1/'
'/^TRACE_EVENT(\([[:alnum:]_]*\).*/trace_\1_rcuidle/'
'/^DEFINE_EVENT([^,)]*, *\([[:alnum:]_]*\).*/trace_\1/'
'/^DEFINE_EVENT([^,)]*, *\([[:alnum:]_]*\).*/trace_\1_rcuidle/'
'/^DEFINE_INSN_CACHE_OPS(\([[:alnum:]_]*\).*/get_\1_slot/'
'/^DEFINE_INSN_CACHE_OPS(\([[:alnum:]_]*\).*/free_\1_slot/'
'/^PAGEFLAG(\([[:alnum:]_]*\).*/Page\1/'
'/^PAGEFLAG(\([[:alnum:]_]*\).*/SetPage\1/'
'/^PAGEFLAG(\([[:alnum:]_]*\).*/ClearPage\1/'
'/^TESTSETFLAG(\([[:alnum:]_]*\).*/TestSetPage\1/'
'/^TESTPAGEFLAG(\([[:alnum:]_]*\).*/Page\1/'
'/^SETPAGEFLAG(\([[:alnum:]_]*\).*/SetPage\1/'
'/\<__SETPAGEFLAG(\([[:alnum:]_]*\).*/__SetPage\1/'
'/\<TESTCLEARFLAG(\([[:alnum:]_]*\).*/TestClearPage\1/'
'/\<__TESTCLEARFLAG(\([[:alnum:]_]*\).*/TestClearPage\1/'
'/\<CLEARPAGEFLAG(\([[:alnum:]_]*\).*/ClearPage\1/'
'/\<__CLEARPAGEFLAG(\([[:alnum:]_]*\).*/__ClearPage\1/'
'/^__PAGEFLAG(\([[:alnum:]_]*\).*/__SetPage\1/'
'/^__PAGEFLAG(\([[:alnum:]_]*\).*/__ClearPage\1/'
'/^PAGEFLAG_FALSE(\([[:alnum:]_]*\).*/Page\1/'
'/\<TESTSCFLAG(\([[:alnum:]_]*\).*/TestSetPage\1/'
'/\<TESTSCFLAG(\([[:alnum:]_]*\).*/TestClearPage\1/'
'/\<SETPAGEFLAG_NOOP(\([[:alnum:]_]*\).*/SetPage\1/'
'/\<CLEARPAGEFLAG_NOOP(\([[:alnum:]_]*\).*/ClearPage\1/'
'/\<__CLEARPAGEFLAG_NOOP(\([[:alnum:]_]*\).*/__ClearPage\1/'
'/\<TESTCLEARFLAG_FALSE(\([[:alnum:]_]*\).*/TestClearPage\1/'
'/^PAGE_MAPCOUNT_OPS(\([[:alnum:]_]*\).*/Page\1/'
'/^PAGE_MAPCOUNT_OPS(\([[:alnum:]_]*\).*/__SetPage\1/'
'/^PAGE_MAPCOUNT_OPS(\([[:alnum:]_]*\).*/__ClearPage\1/'
'/^TASK_PFA_TEST([^,]*, *\([[:alnum:]_]*\))/task_\1/'
'/^TASK_PFA_SET([^,]*, *\([[:alnum:]_]*\))/task_set_\1/'
'/^TASK_PFA_CLEAR([^,]*, *\([[:alnum:]_]*\))/task_clear_\1/'
'/^DEF_MMIO_\(IN\|OUT\)_[XD](\([[:alnum:]_]*\),[^)]*)/\2/'
'/^DEBUGGER_BOILERPLATE(\([[:alnum:]_]*\))/\1/'
'/^DEF_PCI_AC_\(\|NO\)RET(\([[:alnum:]_]*\).*/\2/'
'/^PCI_OP_READ(\(\w*\).*[1-4])/pci_bus_read_config_\1/'
'/^PCI_OP_WRITE(\(\w*\).*[1-4])/pci_bus_write_config_\1/'
'/\<DEFINE_\(MUTEX\|SEMAPHORE\|SPINLOCK\)(\([[:alnum:]_]*\)/\2/v/'
'/\<DEFINE_\(RAW_SPINLOCK\|RWLOCK\|SEQLOCK\)(\([[:alnum:]_]*\)/\2/v/'
'/\<DECLARE_\(RWSEM\|COMPLETION\)(\([[:alnum:]_]\+\)/\2/v/'
'/\<DECLARE_BITMAP(\([[:alnum:]_]*\)/\1/v/'
'/\(^\|\s\)\(\|L\|H\)LIST_HEAD(\([[:alnum:]_]*\)/\3/v/'
'/\(^\|\s\)RADIX_TREE(\([[:alnum:]_]*\)/\2/v/'
'/\<DEFINE_PER_CPU([^,]*, *\([[:alnum:]_]*\)/\1/v/'
'/\<DEFINE_PER_CPU_SHARED_ALIGNED([^,]*, *\([[:alnum:]_]*\)/\1/v/'
'/\<DECLARE_WAIT_QUEUE_HEAD(\([[:alnum:]_]*\)/\1/v/'
'/\<DECLARE_\(TASKLET\|WORK\|DELAYED_WORK\)(\([[:alnum:]_]*\)/\2/v/'
'/\(^\s\)OFFSET(\([[:alnum:]_]*\)/\2/v/'
'/\(^\s\)DEFINE(\([[:alnum:]_]*\)/\2/v/'
'/\<DEFINE_HASHTABLE(\([[:alnum:]_]*\)/\1/v/'
)
regex_kconfig=(
'/^[[:blank:]]*\(menu\|\)config[[:blank:]]\+\([[:alnum:]_]\+\)/\2/'
'/^[[:blank:]]*\(menu\|\)config[[:blank:]]\+\([[:alnum:]_]\+\)/CONFIG_\2/'
)
setup_regex()
{
local mode=$1 lang tmp=() r
shift
regex=()
for lang; do
case "$lang" in
asm) tmp=("${regex_asm[@]}") ;;
c) tmp=("${regex_c[@]}") ;;
kconfig) tmp=("${regex_kconfig[@]}") ;;
esac
for r in "${tmp[@]}"; do
if test "$mode" = "exuberant"; then
regex[${#regex[@]}]="--regex-$lang=${r}b"
else
# Remove ctags /kind-spec/
case "$r" in
/*/*/?/)
r=${r%?/}
esac
# Prepend ^[^#] unless already anchored
case "$r" in
/^*) ;;
*)
r="/^[^#]*${r#/}"
esac
regex[${#regex[@]}]="--regex=$r"
fi
done
done
}
exuberant()
{
setup_regex exuberant asm c
all_target_sources | xargs $1 -a \
-I __initdata,__exitdata,__initconst, \
-I __initdata_memblock \
@ -166,118 +264,22 @@ exuberant()
-I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL,ACPI_EXPORT_SYMBOL \
-I DEFINE_TRACE,EXPORT_TRACEPOINT_SYMBOL,EXPORT_TRACEPOINT_SYMBOL_GPL \
-I static,const \
--extra=+f --c-kinds=+px \
--regex-asm='/^(ENTRY|_GLOBAL)\(([^)]*)\).*/\2/' \
--regex-c='/^SYSCALL_DEFINE[[:digit:]]?\(([^,)]*).*/sys_\1/' \
--regex-c='/^COMPAT_SYSCALL_DEFINE[[:digit:]]?\(([^,)]*).*/compat_sys_\1/' \
--regex-c++='/^TRACE_EVENT\(([^,)]*).*/trace_\1/' \
--regex-c++='/^TRACE_EVENT\(([^,)]*).*/trace_\1_rcuidle/' \
--regex-c++='/^DEFINE_EVENT\([^,)]*, *([^,)]*).*/trace_\1/' \
--regex-c++='/^DEFINE_EVENT\([^,)]*, *([^,)]*).*/trace_\1_rcuidle/' \
--regex-c++='/PAGEFLAG\(([^,)]*).*/Page\1/' \
--regex-c++='/PAGEFLAG\(([^,)]*).*/SetPage\1/' \
--regex-c++='/PAGEFLAG\(([^,)]*).*/ClearPage\1/' \
--regex-c++='/TESTSETFLAG\(([^,)]*).*/TestSetPage\1/' \
--regex-c++='/TESTPAGEFLAG\(([^,)]*).*/Page\1/' \
--regex-c++='/SETPAGEFLAG\(([^,)]*).*/SetPage\1/' \
--regex-c++='/__SETPAGEFLAG\(([^,)]*).*/__SetPage\1/' \
--regex-c++='/TESTCLEARFLAG\(([^,)]*).*/TestClearPage\1/' \
--regex-c++='/__TESTCLEARFLAG\(([^,)]*).*/TestClearPage\1/' \
--regex-c++='/CLEARPAGEFLAG\(([^,)]*).*/ClearPage\1/' \
--regex-c++='/__CLEARPAGEFLAG\(([^,)]*).*/__ClearPage\1/' \
--regex-c++='/__PAGEFLAG\(([^,)]*).*/__SetPage\1/' \
--regex-c++='/__PAGEFLAG\(([^,)]*).*/__ClearPage\1/' \
--regex-c++='/PAGEFLAG_FALSE\(([^,)]*).*/Page\1/' \
--regex-c++='/TESTSCFLAG\(([^,)]*).*/TestSetPage\1/' \
--regex-c++='/TESTSCFLAG\(([^,)]*).*/TestClearPage\1/' \
--regex-c++='/SETPAGEFLAG_NOOP\(([^,)]*).*/SetPage\1/' \
--regex-c++='/CLEARPAGEFLAG_NOOP\(([^,)]*).*/ClearPage\1/' \
--regex-c++='/__CLEARPAGEFLAG_NOOP\(([^,)]*).*/__ClearPage\1/' \
--regex-c++='/TESTCLEARFLAG_FALSE\(([^,)]*).*/TestClearPage\1/' \
--regex-c++='/__TESTCLEARFLAG_FALSE\(([^,)]*).*/__TestClearPage\1/' \
--regex-c++='/_PE\(([^,)]*).*/PEVENT_ERRNO__\1/' \
--regex-c++='/TASK_PFA_TEST\([^,]*,\s*([^)]*)\)/task_\1/' \
--regex-c++='/TASK_PFA_SET\([^,]*,\s*([^)]*)\)/task_set_\1/' \
--regex-c++='/TASK_PFA_CLEAR\([^,]*,\s*([^)]*)\)/task_clear_\1/'\
--regex-c++='/DEF_MMIO_(IN|OUT)_(X|D)\(([^,]*),\s*[^)]*\)/\3/' \
--regex-c++='/DEBUGGER_BOILERPLATE\(([^,]*)\)/\1/' \
--regex-c='/PCI_OP_READ\((\w*).*[1-4]\)/pci_bus_read_config_\1/' \
--regex-c='/PCI_OP_WRITE\((\w*).*[1-4]\)/pci_bus_write_config_\1/' \
--regex-c='/DEFINE_(MUTEX|SEMAPHORE|SPINLOCK)\((\w*)/\2/v/' \
--regex-c='/DEFINE_(RAW_SPINLOCK|RWLOCK|SEQLOCK)\((\w*)/\2/v/' \
--regex-c='/DECLARE_(RWSEM|COMPLETION)\((\w*)/\2/v/' \
--regex-c='/DECLARE_BITMAP\((\w*)/\1/v/' \
--regex-c='/(^|\s)(|L|H)LIST_HEAD\((\w*)/\3/v/' \
--regex-c='/(^|\s)RADIX_TREE\((\w*)/\2/v/' \
--regex-c='/DEFINE_PER_CPU\(([^,]*,\s*)(\w*).*\)/\2/v/' \
--regex-c='/DEFINE_PER_CPU_SHARED_ALIGNED\(([^,]*,\s*)(\w*).*\)/\2/v/' \
--regex-c='/DECLARE_WAIT_QUEUE_HEAD\((\w*)/\1/v/' \
--regex-c='/DECLARE_(TASKLET|WORK|DELAYED_WORK)\((\w*)/\2/v/' \
--regex-c='/DEFINE_PCI_DEVICE_TABLE\((\w*)/\1/v/' \
--regex-c='/(^\s)OFFSET\((\w*)/\2/v/' \
--regex-c='/(^\s)DEFINE\((\w*)/\2/v/' \
--regex-c='/DEFINE_HASHTABLE\((\w*)/\1/v/'
--extra=+fq --c-kinds=+px --fields=+iaS --langmap=c:+.h \
"${regex[@]}"
setup_regex exuberant kconfig
all_kconfigs | xargs $1 -a \
--langdef=kconfig --language-force=kconfig \
--regex-kconfig='/^[[:blank:]]*(menu|)config[[:blank:]]+([[:alnum:]_]+)/\2/'
--langdef=kconfig --language-force=kconfig "${regex[@]}"
all_kconfigs | xargs $1 -a \
--langdef=kconfig --language-force=kconfig \
--regex-kconfig='/^[[:blank:]]*(menu|)config[[:blank:]]+([[:alnum:]_]+)/CONFIG_\2/'
all_defconfigs | xargs -r $1 -a \
--langdef=dotconfig --language-force=dotconfig \
--regex-dotconfig='/^#?[[:blank:]]*(CONFIG_[[:alnum:]_]+)/\1/'
}
emacs()
{
all_target_sources | xargs $1 -a \
--regex='/^\(ENTRY\|_GLOBAL\)(\([^)]*\)).*/\2/' \
--regex='/^SYSCALL_DEFINE[0-9]?(\([^,)]*\).*/sys_\1/' \
--regex='/^COMPAT_SYSCALL_DEFINE[0-9]?(\([^,)]*\).*/compat_sys_\1/' \
--regex='/^TRACE_EVENT(\([^,)]*\).*/trace_\1/' \
--regex='/^TRACE_EVENT(\([^,)]*\).*/trace_\1_rcuidle/' \
--regex='/^DEFINE_EVENT([^,)]*, *\([^,)]*\).*/trace_\1/' \
--regex='/^DEFINE_EVENT([^,)]*, *\([^,)]*\).*/trace_\1_rcuidle/' \
--regex='/PAGEFLAG(\([^,)]*\).*/Page\1/' \
--regex='/PAGEFLAG(\([^,)]*\).*/SetPage\1/' \
--regex='/PAGEFLAG(\([^,)]*\).*/ClearPage\1/' \
--regex='/TESTSETFLAG(\([^,)]*\).*/TestSetPage\1/' \
--regex='/TESTPAGEFLAG(\([^,)]*\).*/Page\1/' \
--regex='/SETPAGEFLAG(\([^,)]*\).*/SetPage\1/' \
--regex='/__SETPAGEFLAG(\([^,)]*\).*/__SetPage\1/' \
--regex='/TESTCLEARFLAG(\([^,)]*\).*/TestClearPage\1/' \
--regex='/__TESTCLEARFLAG(\([^,)]*\).*/TestClearPage\1/' \
--regex='/CLEARPAGEFLAG(\([^,)]*\).*/ClearPage\1/' \
--regex='/__CLEARPAGEFLAG(\([^,)]*\).*/__ClearPage\1/' \
--regex='/__PAGEFLAG(\([^,)]*\).*/__SetPage\1/' \
--regex='/__PAGEFLAG(\([^,)]*\).*/__ClearPage\1/' \
--regex='/PAGEFLAG_FALSE(\([^,)]*\).*/Page\1/' \
--regex='/TESTSCFLAG(\([^,)]*\).*/TestSetPage\1/' \
--regex='/TESTSCFLAG(\([^,)]*\).*/TestClearPage\1/' \
--regex='/SETPAGEFLAG_NOOP(\([^,)]*\).*/SetPage\1/' \
--regex='/CLEARPAGEFLAG_NOOP(\([^,)]*\).*/ClearPage\1/' \
--regex='/__CLEARPAGEFLAG_NOOP(\([^,)]*\).*/__ClearPage\1/' \
--regex='/TESTCLEARFLAG_FALSE(\([^,)]*\).*/TestClearPage\1/' \
--regex='/__TESTCLEARFLAG_FALSE(\([^,)]*\).*/__TestClearPage\1/' \
--regex='/TASK_PFA_TEST\([^,]*,\s*([^)]*)\)/task_\1/' \
--regex='/TASK_PFA_SET\([^,]*,\s*([^)]*)\)/task_set_\1/' \
--regex='/TASK_PFA_CLEAR\([^,]*,\s*([^)]*)\)/task_clear_\1/' \
--regex='/_PE(\([^,)]*\).*/PEVENT_ERRNO__\1/' \
--regex='/PCI_OP_READ(\([a-z]*[a-z]\).*[1-4])/pci_bus_read_config_\1/' \
--regex='/PCI_OP_WRITE(\([a-z]*[a-z]\).*[1-4])/pci_bus_write_config_\1/'\
--regex='/[^#]*DEFINE_HASHTABLE(\([^,)]*\)/\1/'
setup_regex emacs asm c
all_target_sources | xargs $1 -a "${regex[@]}"
all_kconfigs | xargs $1 -a \
--regex='/^[ \t]*\(\(menu\)*config\)[ \t]+\([a-zA-Z0-9_]+\)/\3/'
all_kconfigs | xargs $1 -a \
--regex='/^[ \t]*\(\(menu\)*config\)[ \t]+\([a-zA-Z0-9_]+\)/CONFIG_\3/'
all_defconfigs | xargs -r $1 -a \
--regex='/^#?[ \t]?\(CONFIG_[a-zA-Z0-9_]+\)/\1/'
setup_regex emacs kconfig
all_kconfigs | xargs $1 -a "${regex[@]}"
}
xtags()