perf/urgent improvements and fixes:

- Fixes dealing with the removal of the fallback to looking up samples
   marked as userspace in the kernel maps, done recently:
 
   - For intel-pt, that was setting the synthesized header misc field
     as PERF_RECORD_MISC_USER, depending thus on the fallback to take
     place, now it sets as USER or KERNEL according to x86 specific
     knowledge. Also now it inserts the PERF_CONTEXT_{USER,KERNEL} into
     the PERF_SAMPLE_CALLCHAINs it synthesizes from hw traces (Adrian Hunter)
 
   - Similar fixes for the cs-etm ARM HW trace code, that used the Intel PT
     model as a starting point (Leo Yan)
 
   - For the "caller" callchain order, where the callchain returned by the
     kernel was simply reversed without taking into account the
     PERF_CONTEXT_{USER,KERNEL,etc} markers from where to define if an entry
     was for kernel or userspace, working just because the map lookup fallback
     was in place (David S. Miller)
 
 - Allow for selecting if 'overwrite' mode should be used in 'perf top' and
   make the default for it not to be used. This is due to problems with the
   current implementation where the pausing used ends up making 'perf top'
   miss PERF_RECORD_{MMAP,FORK,EXEC,etc} events, which with short lifetime
   threads workloads leads quickly to many "unknown" maps (and thus symbols)
   to appear in the UI. Workloads with long thread lifetimes and with few
   metadata events can still use --overwrite to take advantage of the
   overwrite mode (Arnaldo Carvalho de Melo)
 
 - Start 'perf top''s display thread earlier, so that the screen doesn't
   remain blank for too long at tool start (David S. Miller)
 
 - Don't clone maps from parent when synthesizing forks, to avoid the inevitable
   flurry of overlapping maps as we process the synthesized MMAP2 events that get
   delivered shortly thereafter. (David S. Miller)
 
 - Take pgoff into account when reporting elf to libdwfl, now the unwinding
   results are the same with elfutils's libdwfl and libunwind (Milian Wolff)
 
 - Update lotsa kernel ABI headers (Arnaldo Carvalho de Melo)
 
 - 'perf trace' syscall arg beautification improvements to allow for
   handling args such as mount's 'flags', where maks have to be ignored
   before considering what is left, that, if only zeroes, is suppressed
   like other args without such masks (Arnaldo Carvalho de Melo)
 
 - Beautify mount's 'source' and 'flags' args (Arnaldo Carvalho de Melo)
 
 - Generate mmap's flags bit constants from linux/mman.h and all the
   arch specific mman.h files, so that no changes in the main 'perf trace'
   source files is required when new flags get added (Arnaldo Carvalho de Melo)
 
 - Consider syscall aliases, so that 'perf trace -e umount' works and we don't
   have to use 'umount2' (that works as well, just not required) (Arnaldo Carvalho de Melo)
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 -----BEGIN PGP SIGNATURE-----
 
 iHUEABYIAB0WIQR2GiIUctdOfX2qHhGyPKLppCJ+JwUCW9nYxQAKCRCyPKLppCJ+
 J+L1AQCYddnP+10DKmX1AANnFZrnhwpNuXSXmsa1Ar1npLdDLQD9H/v8EOdqQ4f8
 ckoYhlgw7+R/QANS5C4J2aalCbvQ2Qc=
 =uYi2
 -----END PGP SIGNATURE-----

Merge tag 'perf-urgent-for-mingo-4.20-20181031' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent

Pull perf/urgent improvements and fixes from Arnaldo Carvalho de Melo:

- Fixes dealing with the removal of the fallback to looking up samples
  marked as userspace in the kernel maps, done recently:

  - For intel-pt, that was setting the synthesized header misc field
    as PERF_RECORD_MISC_USER, depending thus on the fallback to take
    place, now it sets as USER or KERNEL according to x86 specific
    knowledge. Also now it inserts the PERF_CONTEXT_{USER,KERNEL} into
    the PERF_SAMPLE_CALLCHAINs it synthesizes from hw traces (Adrian Hunter)

  - Similar fixes for the cs-etm ARM HW trace code, that used the Intel PT
    model as a starting point (Leo Yan)

  - For the "caller" callchain order, where the callchain returned by the
    kernel was simply reversed without taking into account the
    PERF_CONTEXT_{USER,KERNEL,etc} markers from where to define if an entry
    was for kernel or userspace, working just because the map lookup fallback
    was in place (David S. Miller)

- Allow for selecting if 'overwrite' mode should be used in 'perf top' and
  make the default for it not to be used. This is due to problems with the
  current implementation where the pausing used ends up making 'perf top'
  miss PERF_RECORD_{MMAP,FORK,EXEC,etc} events, which with short lifetime
  threads workloads leads quickly to many "unknown" maps (and thus symbols)
  to appear in the UI. Workloads with long thread lifetimes and with few
  metadata events can still use --overwrite to take advantage of the
  overwrite mode (Arnaldo Carvalho de Melo)

- Start 'perf top''s display thread earlier, so that the screen doesn't
  remain blank for too long at tool start (David S. Miller)

- Don't clone maps from parent when synthesizing forks, to avoid the inevitable
  flurry of overlapping maps as we process the synthesized MMAP2 events that get
  delivered shortly thereafter. (David S. Miller)

- Take pgoff into account when reporting elf to libdwfl, now the unwinding
  results are the same with elfutils's libdwfl and libunwind (Milian Wolff)

- Update lotsa kernel ABI headers (Arnaldo Carvalho de Melo)

- 'perf trace' syscall arg beautification improvements to allow for
  handling args such as mount's 'flags', where maks have to be ignored
  before considering what is left, that, if only zeroes, is suppressed
  like other args without such masks (Arnaldo Carvalho de Melo)

- Beautify mount's 'source' and 'flags' args (Arnaldo Carvalho de Melo)

- Generate mmap's flags bit constants from linux/mman.h and all the
  arch specific mman.h files, so that no changes in the main 'perf trace'
  source files is required when new flags get added (Arnaldo Carvalho de Melo)

- Consider syscall aliases, so that 'perf trace -e umount' works and we don't
  have to use 'umount2' (that works as well, just not required) (Arnaldo Carvalho de Melo)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Ingo Molnar 2018-10-31 22:53:40 +01:00
commit 29995d296e
68 changed files with 838 additions and 143 deletions

View File

@ -646,10 +646,12 @@ struct perf_event_mmap_page {
*
* PERF_RECORD_MISC_MMAP_DATA - PERF_RECORD_MMAP* events
* PERF_RECORD_MISC_COMM_EXEC - PERF_RECORD_COMM event
* PERF_RECORD_MISC_FORK_EXEC - PERF_RECORD_FORK event (perf internal)
* PERF_RECORD_MISC_SWITCH_OUT - PERF_RECORD_SWITCH* events
*/
#define PERF_RECORD_MISC_MMAP_DATA (1 << 13)
#define PERF_RECORD_MISC_COMM_EXEC (1 << 13)
#define PERF_RECORD_MISC_FORK_EXEC (1 << 13)
#define PERF_RECORD_MISC_SWITCH_OUT (1 << 13)
/*
* These PERF_RECORD_MISC_* flags below are safely reused

View File

@ -16,5 +16,6 @@
*/
#define __ARCH_WANT_RENAMEAT
#define __ARCH_WANT_NEW_STAT
#include <asm-generic/unistd.h>

View File

@ -634,6 +634,7 @@ struct kvm_ppc_cpu_char {
#define KVM_REG_PPC_DEC_EXPIRY (KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xbe)
#define KVM_REG_PPC_ONLINE (KVM_REG_PPC | KVM_REG_SIZE_U32 | 0xbf)
#define KVM_REG_PPC_PTCR (KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xc0)
/* Transactional Memory checkpointed state:
* This is all GPRs, all VSX regs and a subset of SPRs

View File

@ -160,6 +160,8 @@ struct kvm_s390_vm_cpu_subfunc {
#define KVM_S390_VM_CRYPTO_ENABLE_DEA_KW 1
#define KVM_S390_VM_CRYPTO_DISABLE_AES_KW 2
#define KVM_S390_VM_CRYPTO_DISABLE_DEA_KW 3
#define KVM_S390_VM_CRYPTO_ENABLE_APIE 4
#define KVM_S390_VM_CRYPTO_DISABLE_APIE 5
/* kvm attributes for migration mode */
#define KVM_S390_VM_MIGRATION_STOP 0

View File

@ -300,10 +300,7 @@ struct kvm_vcpu_events {
__u8 injected;
__u8 nr;
__u8 has_error_code;
union {
__u8 pad;
__u8 pending;
};
__u8 pending;
__u32 error_code;
} exception;
struct {
@ -387,6 +384,7 @@ struct kvm_sync_regs {
#define KVM_STATE_NESTED_GUEST_MODE 0x00000001
#define KVM_STATE_NESTED_RUN_PENDING 0x00000002
#define KVM_STATE_NESTED_EVMCS 0x00000004
#define KVM_STATE_NESTED_SMM_GUEST_MODE 0x00000001
#define KVM_STATE_NESTED_SMM_VMXON 0x00000002

View File

@ -242,10 +242,12 @@ __SYSCALL(__NR_tee, sys_tee)
/* fs/stat.c */
#define __NR_readlinkat 78
__SYSCALL(__NR_readlinkat, sys_readlinkat)
#if defined(__ARCH_WANT_NEW_STAT) || defined(__ARCH_WANT_STAT64)
#define __NR3264_fstatat 79
__SC_3264(__NR3264_fstatat, sys_fstatat64, sys_newfstatat)
#define __NR3264_fstat 80
__SC_3264(__NR3264_fstat, sys_fstat64, sys_newfstat)
#endif
/* fs/sync.c */
#define __NR_sync 81

View File

@ -0,0 +1,393 @@
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _UAPI_LINUX_FS_H
#define _UAPI_LINUX_FS_H
/*
* This file has definitions for some important file table structures
* and constants and structures used by various generic file system
* ioctl's. Please do not make any changes in this file before
* sending patches for review to linux-fsdevel@vger.kernel.org and
* linux-api@vger.kernel.org.
*/
#include <linux/limits.h>
#include <linux/ioctl.h>
#include <linux/types.h>
/*
* It's silly to have NR_OPEN bigger than NR_FILE, but you can change
* the file limit at runtime and only root can increase the per-process
* nr_file rlimit, so it's safe to set up a ridiculously high absolute
* upper limit on files-per-process.
*
* Some programs (notably those using select()) may have to be
* recompiled to take full advantage of the new limits..
*/
/* Fixed constants first: */
#undef NR_OPEN
#define INR_OPEN_CUR 1024 /* Initial setting for nfile rlimits */
#define INR_OPEN_MAX 4096 /* Hard limit for nfile rlimits */
#define BLOCK_SIZE_BITS 10
#define BLOCK_SIZE (1<<BLOCK_SIZE_BITS)
#define SEEK_SET 0 /* seek relative to beginning of file */
#define SEEK_CUR 1 /* seek relative to current file position */
#define SEEK_END 2 /* seek relative to end of file */
#define SEEK_DATA 3 /* seek to the next data */
#define SEEK_HOLE 4 /* seek to the next hole */
#define SEEK_MAX SEEK_HOLE
#define RENAME_NOREPLACE (1 << 0) /* Don't overwrite target */
#define RENAME_EXCHANGE (1 << 1) /* Exchange source and dest */
#define RENAME_WHITEOUT (1 << 2) /* Whiteout source */
struct file_clone_range {
__s64 src_fd;
__u64 src_offset;
__u64 src_length;
__u64 dest_offset;
};
struct fstrim_range {
__u64 start;
__u64 len;
__u64 minlen;
};
/* extent-same (dedupe) ioctls; these MUST match the btrfs ioctl definitions */
#define FILE_DEDUPE_RANGE_SAME 0
#define FILE_DEDUPE_RANGE_DIFFERS 1
/* from struct btrfs_ioctl_file_extent_same_info */
struct file_dedupe_range_info {
__s64 dest_fd; /* in - destination file */
__u64 dest_offset; /* in - start of extent in destination */
__u64 bytes_deduped; /* out - total # of bytes we were able
* to dedupe from this file. */
/* status of this dedupe operation:
* < 0 for error
* == FILE_DEDUPE_RANGE_SAME if dedupe succeeds
* == FILE_DEDUPE_RANGE_DIFFERS if data differs
*/
__s32 status; /* out - see above description */
__u32 reserved; /* must be zero */
};
/* from struct btrfs_ioctl_file_extent_same_args */
struct file_dedupe_range {
__u64 src_offset; /* in - start of extent in source */
__u64 src_length; /* in - length of extent */
__u16 dest_count; /* in - total elements in info array */
__u16 reserved1; /* must be zero */
__u32 reserved2; /* must be zero */
struct file_dedupe_range_info info[0];
};
/* And dynamically-tunable limits and defaults: */
struct files_stat_struct {
unsigned long nr_files; /* read only */
unsigned long nr_free_files; /* read only */
unsigned long max_files; /* tunable */
};
struct inodes_stat_t {
long nr_inodes;
long nr_unused;
long dummy[5]; /* padding for sysctl ABI compatibility */
};
#define NR_FILE 8192 /* this can well be larger on a larger system */
/*
* These are the fs-independent mount-flags: up to 32 flags are supported
*/
#define MS_RDONLY 1 /* Mount read-only */
#define MS_NOSUID 2 /* Ignore suid and sgid bits */
#define MS_NODEV 4 /* Disallow access to device special files */
#define MS_NOEXEC 8 /* Disallow program execution */
#define MS_SYNCHRONOUS 16 /* Writes are synced at once */
#define MS_REMOUNT 32 /* Alter flags of a mounted FS */
#define MS_MANDLOCK 64 /* Allow mandatory locks on an FS */
#define MS_DIRSYNC 128 /* Directory modifications are synchronous */
#define MS_NOATIME 1024 /* Do not update access times. */
#define MS_NODIRATIME 2048 /* Do not update directory access times */
#define MS_BIND 4096
#define MS_MOVE 8192
#define MS_REC 16384
#define MS_VERBOSE 32768 /* War is peace. Verbosity is silence.
MS_VERBOSE is deprecated. */
#define MS_SILENT 32768
#define MS_POSIXACL (1<<16) /* VFS does not apply the umask */
#define MS_UNBINDABLE (1<<17) /* change to unbindable */
#define MS_PRIVATE (1<<18) /* change to private */
#define MS_SLAVE (1<<19) /* change to slave */
#define MS_SHARED (1<<20) /* change to shared */
#define MS_RELATIME (1<<21) /* Update atime relative to mtime/ctime. */
#define MS_KERNMOUNT (1<<22) /* this is a kern_mount call */
#define MS_I_VERSION (1<<23) /* Update inode I_version field */
#define MS_STRICTATIME (1<<24) /* Always perform atime updates */
#define MS_LAZYTIME (1<<25) /* Update the on-disk [acm]times lazily */
/* These sb flags are internal to the kernel */
#define MS_SUBMOUNT (1<<26)
#define MS_NOREMOTELOCK (1<<27)
#define MS_NOSEC (1<<28)
#define MS_BORN (1<<29)
#define MS_ACTIVE (1<<30)
#define MS_NOUSER (1<<31)
/*
* Superblock flags that can be altered by MS_REMOUNT
*/
#define MS_RMT_MASK (MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_I_VERSION|\
MS_LAZYTIME)
/*
* Old magic mount flag and mask
*/
#define MS_MGC_VAL 0xC0ED0000
#define MS_MGC_MSK 0xffff0000
/*
* Structure for FS_IOC_FSGETXATTR[A] and FS_IOC_FSSETXATTR.
*/
struct fsxattr {
__u32 fsx_xflags; /* xflags field value (get/set) */
__u32 fsx_extsize; /* extsize field value (get/set)*/
__u32 fsx_nextents; /* nextents field value (get) */
__u32 fsx_projid; /* project identifier (get/set) */
__u32 fsx_cowextsize; /* CoW extsize field value (get/set)*/
unsigned char fsx_pad[8];
};
/*
* Flags for the fsx_xflags field
*/
#define FS_XFLAG_REALTIME 0x00000001 /* data in realtime volume */
#define FS_XFLAG_PREALLOC 0x00000002 /* preallocated file extents */
#define FS_XFLAG_IMMUTABLE 0x00000008 /* file cannot be modified */
#define FS_XFLAG_APPEND 0x00000010 /* all writes append */
#define FS_XFLAG_SYNC 0x00000020 /* all writes synchronous */
#define FS_XFLAG_NOATIME 0x00000040 /* do not update access time */
#define FS_XFLAG_NODUMP 0x00000080 /* do not include in backups */
#define FS_XFLAG_RTINHERIT 0x00000100 /* create with rt bit set */
#define FS_XFLAG_PROJINHERIT 0x00000200 /* create with parents projid */
#define FS_XFLAG_NOSYMLINKS 0x00000400 /* disallow symlink creation */
#define FS_XFLAG_EXTSIZE 0x00000800 /* extent size allocator hint */
#define FS_XFLAG_EXTSZINHERIT 0x00001000 /* inherit inode extent size */
#define FS_XFLAG_NODEFRAG 0x00002000 /* do not defragment */
#define FS_XFLAG_FILESTREAM 0x00004000 /* use filestream allocator */
#define FS_XFLAG_DAX 0x00008000 /* use DAX for IO */
#define FS_XFLAG_COWEXTSIZE 0x00010000 /* CoW extent size allocator hint */
#define FS_XFLAG_HASATTR 0x80000000 /* no DIFLAG for this */
/* the read-only stuff doesn't really belong here, but any other place is
probably as bad and I don't want to create yet another include file. */
#define BLKROSET _IO(0x12,93) /* set device read-only (0 = read-write) */
#define BLKROGET _IO(0x12,94) /* get read-only status (0 = read_write) */
#define BLKRRPART _IO(0x12,95) /* re-read partition table */
#define BLKGETSIZE _IO(0x12,96) /* return device size /512 (long *arg) */
#define BLKFLSBUF _IO(0x12,97) /* flush buffer cache */
#define BLKRASET _IO(0x12,98) /* set read ahead for block device */
#define BLKRAGET _IO(0x12,99) /* get current read ahead setting */
#define BLKFRASET _IO(0x12,100)/* set filesystem (mm/filemap.c) read-ahead */
#define BLKFRAGET _IO(0x12,101)/* get filesystem (mm/filemap.c) read-ahead */
#define BLKSECTSET _IO(0x12,102)/* set max sectors per request (ll_rw_blk.c) */
#define BLKSECTGET _IO(0x12,103)/* get max sectors per request (ll_rw_blk.c) */
#define BLKSSZGET _IO(0x12,104)/* get block device sector size */
#if 0
#define BLKPG _IO(0x12,105)/* See blkpg.h */
/* Some people are morons. Do not use sizeof! */
#define BLKELVGET _IOR(0x12,106,size_t)/* elevator get */
#define BLKELVSET _IOW(0x12,107,size_t)/* elevator set */
/* This was here just to show that the number is taken -
probably all these _IO(0x12,*) ioctls should be moved to blkpg.h. */
#endif
/* A jump here: 108-111 have been used for various private purposes. */
#define BLKBSZGET _IOR(0x12,112,size_t)
#define BLKBSZSET _IOW(0x12,113,size_t)
#define BLKGETSIZE64 _IOR(0x12,114,size_t) /* return device size in bytes (u64 *arg) */
#define BLKTRACESETUP _IOWR(0x12,115,struct blk_user_trace_setup)
#define BLKTRACESTART _IO(0x12,116)
#define BLKTRACESTOP _IO(0x12,117)
#define BLKTRACETEARDOWN _IO(0x12,118)
#define BLKDISCARD _IO(0x12,119)
#define BLKIOMIN _IO(0x12,120)
#define BLKIOOPT _IO(0x12,121)
#define BLKALIGNOFF _IO(0x12,122)
#define BLKPBSZGET _IO(0x12,123)
#define BLKDISCARDZEROES _IO(0x12,124)
#define BLKSECDISCARD _IO(0x12,125)
#define BLKROTATIONAL _IO(0x12,126)
#define BLKZEROOUT _IO(0x12,127)
/*
* A jump here: 130-131 are reserved for zoned block devices
* (see uapi/linux/blkzoned.h)
*/
#define BMAP_IOCTL 1 /* obsolete - kept for compatibility */
#define FIBMAP _IO(0x00,1) /* bmap access */
#define FIGETBSZ _IO(0x00,2) /* get the block size used for bmap */
#define FIFREEZE _IOWR('X', 119, int) /* Freeze */
#define FITHAW _IOWR('X', 120, int) /* Thaw */
#define FITRIM _IOWR('X', 121, struct fstrim_range) /* Trim */
#define FICLONE _IOW(0x94, 9, int)
#define FICLONERANGE _IOW(0x94, 13, struct file_clone_range)
#define FIDEDUPERANGE _IOWR(0x94, 54, struct file_dedupe_range)
#define FSLABEL_MAX 256 /* Max chars for the interface; each fs may differ */
#define FS_IOC_GETFLAGS _IOR('f', 1, long)
#define FS_IOC_SETFLAGS _IOW('f', 2, long)
#define FS_IOC_GETVERSION _IOR('v', 1, long)
#define FS_IOC_SETVERSION _IOW('v', 2, long)
#define FS_IOC_FIEMAP _IOWR('f', 11, struct fiemap)
#define FS_IOC32_GETFLAGS _IOR('f', 1, int)
#define FS_IOC32_SETFLAGS _IOW('f', 2, int)
#define FS_IOC32_GETVERSION _IOR('v', 1, int)
#define FS_IOC32_SETVERSION _IOW('v', 2, int)
#define FS_IOC_FSGETXATTR _IOR('X', 31, struct fsxattr)
#define FS_IOC_FSSETXATTR _IOW('X', 32, struct fsxattr)
#define FS_IOC_GETFSLABEL _IOR(0x94, 49, char[FSLABEL_MAX])
#define FS_IOC_SETFSLABEL _IOW(0x94, 50, char[FSLABEL_MAX])
/*
* File system encryption support
*/
/* Policy provided via an ioctl on the topmost directory */
#define FS_KEY_DESCRIPTOR_SIZE 8
#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
#define FS_ENCRYPTION_MODE_AES_128_CBC 5
#define FS_ENCRYPTION_MODE_AES_128_CTS 6
#define FS_ENCRYPTION_MODE_SPECK128_256_XTS 7 /* Removed, do not use. */
#define FS_ENCRYPTION_MODE_SPECK128_256_CTS 8 /* Removed, do not use. */
struct fscrypt_policy {
__u8 version;
__u8 contents_encryption_mode;
__u8 filenames_encryption_mode;
__u8 flags;
__u8 master_key_descriptor[FS_KEY_DESCRIPTOR_SIZE];
};
#define FS_IOC_SET_ENCRYPTION_POLICY _IOR('f', 19, struct fscrypt_policy)
#define FS_IOC_GET_ENCRYPTION_PWSALT _IOW('f', 20, __u8[16])
#define FS_IOC_GET_ENCRYPTION_POLICY _IOW('f', 21, struct fscrypt_policy)
/* Parameters for passing an encryption key into the kernel keyring */
#define FS_KEY_DESC_PREFIX "fscrypt:"
#define FS_KEY_DESC_PREFIX_SIZE 8
/* Structure that userspace passes to the kernel keyring */
#define FS_MAX_KEY_SIZE 64
struct fscrypt_key {
__u32 mode;
__u8 raw[FS_MAX_KEY_SIZE];
__u32 size;
};
/*
* Inode flags (FS_IOC_GETFLAGS / FS_IOC_SETFLAGS)
*
* Note: for historical reasons, these flags were originally used and
* defined for use by ext2/ext3, and then other file systems started
* using these flags so they wouldn't need to write their own version
* of chattr/lsattr (which was shipped as part of e2fsprogs). You
* should think twice before trying to use these flags in new
* contexts, or trying to assign these flags, since they are used both
* as the UAPI and the on-disk encoding for ext2/3/4. Also, we are
* almost out of 32-bit flags. :-)
*
* We have recently hoisted FS_IOC_FSGETXATTR / FS_IOC_FSSETXATTR from
* XFS to the generic FS level interface. This uses a structure that
* has padding and hence has more room to grow, so it may be more
* appropriate for many new use cases.
*
* Please do not change these flags or interfaces before checking with
* linux-fsdevel@vger.kernel.org and linux-api@vger.kernel.org.
*/
#define FS_SECRM_FL 0x00000001 /* Secure deletion */
#define FS_UNRM_FL 0x00000002 /* Undelete */
#define FS_COMPR_FL 0x00000004 /* Compress file */
#define FS_SYNC_FL 0x00000008 /* Synchronous updates */
#define FS_IMMUTABLE_FL 0x00000010 /* Immutable file */
#define FS_APPEND_FL 0x00000020 /* writes to file may only append */
#define FS_NODUMP_FL 0x00000040 /* do not dump file */
#define FS_NOATIME_FL 0x00000080 /* do not update atime */
/* Reserved for compression usage... */
#define FS_DIRTY_FL 0x00000100
#define FS_COMPRBLK_FL 0x00000200 /* One or more compressed clusters */
#define FS_NOCOMP_FL 0x00000400 /* Don't compress */
/* End compression flags --- maybe not all used */
#define FS_ENCRYPT_FL 0x00000800 /* Encrypted file */
#define FS_BTREE_FL 0x00001000 /* btree format dir */
#define FS_INDEX_FL 0x00001000 /* hash-indexed directory */
#define FS_IMAGIC_FL 0x00002000 /* AFS directory */
#define FS_JOURNAL_DATA_FL 0x00004000 /* Reserved for ext3 */
#define FS_NOTAIL_FL 0x00008000 /* file tail should not be merged */
#define FS_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */
#define FS_TOPDIR_FL 0x00020000 /* Top of directory hierarchies*/
#define FS_HUGE_FILE_FL 0x00040000 /* Reserved for ext4 */
#define FS_EXTENT_FL 0x00080000 /* Extents */
#define FS_EA_INODE_FL 0x00200000 /* Inode used for large EA */
#define FS_EOFBLOCKS_FL 0x00400000 /* Reserved for ext4 */
#define FS_NOCOW_FL 0x00800000 /* Do not cow file */
#define FS_INLINE_DATA_FL 0x10000000 /* Reserved for ext4 */
#define FS_PROJINHERIT_FL 0x20000000 /* Create with parents projid */
#define FS_RESERVED_FL 0x80000000 /* reserved for ext2 lib */
#define FS_FL_USER_VISIBLE 0x0003DFFF /* User visible flags */
#define FS_FL_USER_MODIFIABLE 0x000380FF /* User modifiable flags */
#define SYNC_FILE_RANGE_WAIT_BEFORE 1
#define SYNC_FILE_RANGE_WRITE 2
#define SYNC_FILE_RANGE_WAIT_AFTER 4
/*
* Flags for preadv2/pwritev2:
*/
typedef int __bitwise __kernel_rwf_t;
/* high priority request, poll if possible */
#define RWF_HIPRI ((__force __kernel_rwf_t)0x00000001)
/* per-IO O_DSYNC */
#define RWF_DSYNC ((__force __kernel_rwf_t)0x00000002)
/* per-IO O_SYNC */
#define RWF_SYNC ((__force __kernel_rwf_t)0x00000004)
/* per-IO, return -EAGAIN if operation would block */
#define RWF_NOWAIT ((__force __kernel_rwf_t)0x00000008)
/* per-IO O_APPEND */
#define RWF_APPEND ((__force __kernel_rwf_t)0x00000010)
/* mask of flags supported by the kernel */
#define RWF_SUPPORTED (RWF_HIPRI | RWF_DSYNC | RWF_SYNC | RWF_NOWAIT |\
RWF_APPEND)
#endif /* _UAPI_LINUX_FS_H */

View File

@ -287,6 +287,7 @@ enum {
IFLA_BR_MCAST_STATS_ENABLED,
IFLA_BR_MCAST_IGMP_VERSION,
IFLA_BR_MCAST_MLD_VERSION,
IFLA_BR_VLAN_STATS_PER_PORT,
__IFLA_BR_MAX,
};

View File

@ -420,13 +420,19 @@ struct kvm_run {
struct kvm_coalesced_mmio_zone {
__u64 addr;
__u32 size;
__u32 pad;
union {
__u32 pad;
__u32 pio;
};
};
struct kvm_coalesced_mmio {
__u64 phys_addr;
__u32 len;
__u32 pad;
union {
__u32 pad;
__u32 pio;
};
__u8 data[8];
};
@ -751,6 +757,15 @@ struct kvm_ppc_resize_hpt {
#define KVM_S390_SIE_PAGE_OFFSET 1
/*
* On arm64, machine type can be used to request the physical
* address size for the VM. Bits[7-0] are reserved for the guest
* PA size shift (i.e, log2(PA_Size)). For backward compatibility,
* value 0 implies the default IPA size, 40bits.
*/
#define KVM_VM_TYPE_ARM_IPA_SIZE_MASK 0xffULL
#define KVM_VM_TYPE_ARM_IPA_SIZE(x) \
((x) & KVM_VM_TYPE_ARM_IPA_SIZE_MASK)
/*
* ioctls for /dev/kvm fds:
*/
@ -958,6 +973,8 @@ struct kvm_ppc_resize_hpt {
#define KVM_CAP_HYPERV_SEND_IPI 161
#define KVM_CAP_COALESCED_PIO 162
#define KVM_CAP_HYPERV_ENLIGHTENED_VMCS 163
#define KVM_CAP_EXCEPTION_PAYLOAD 164
#define KVM_CAP_ARM_VM_IPA_SIZE 165
#ifdef KVM_CAP_IRQ_ROUTING

View File

@ -28,7 +28,9 @@
#define MAP_HUGE_2MB HUGETLB_FLAG_ENCODE_2MB
#define MAP_HUGE_8MB HUGETLB_FLAG_ENCODE_8MB
#define MAP_HUGE_16MB HUGETLB_FLAG_ENCODE_16MB
#define MAP_HUGE_32MB HUGETLB_FLAG_ENCODE_32MB
#define MAP_HUGE_256MB HUGETLB_FLAG_ENCODE_256MB
#define MAP_HUGE_512MB HUGETLB_FLAG_ENCODE_512MB
#define MAP_HUGE_1GB HUGETLB_FLAG_ENCODE_1GB
#define MAP_HUGE_2GB HUGETLB_FLAG_ENCODE_2GB
#define MAP_HUGE_16GB HUGETLB_FLAG_ENCODE_16GB

View File

@ -155,6 +155,7 @@ enum nlmsgerr_attrs {
#define NETLINK_LIST_MEMBERSHIPS 9
#define NETLINK_CAP_ACK 10
#define NETLINK_EXT_ACK 11
#define NETLINK_DUMP_STRICT_CHK 12
struct nl_pktinfo {
__u32 group;

View File

@ -646,10 +646,12 @@ struct perf_event_mmap_page {
*
* PERF_RECORD_MISC_MMAP_DATA - PERF_RECORD_MMAP* events
* PERF_RECORD_MISC_COMM_EXEC - PERF_RECORD_COMM event
* PERF_RECORD_MISC_FORK_EXEC - PERF_RECORD_FORK event (perf internal)
* PERF_RECORD_MISC_SWITCH_OUT - PERF_RECORD_SWITCH* events
*/
#define PERF_RECORD_MISC_MMAP_DATA (1 << 13)
#define PERF_RECORD_MISC_COMM_EXEC (1 << 13)
#define PERF_RECORD_MISC_FORK_EXEC (1 << 13)
#define PERF_RECORD_MISC_SWITCH_OUT (1 << 13)
/*
* These PERF_RECORD_MISC_* flags below are safely reused

View File

@ -752,7 +752,7 @@ struct snd_timer_info {
#define SNDRV_TIMER_PSFLG_EARLY_EVENT (1<<2) /* write early event to the poll queue */
struct snd_timer_params {
unsigned int flags; /* flags - SNDRV_MIXER_PSFLG_* */
unsigned int flags; /* flags - SNDRV_TIMER_PSFLG_* */
unsigned int ticks; /* requested resolution in ticks */
unsigned int queue_size; /* total size of queue (32-1024) */
unsigned int reserved0; /* reserved, was: failure locations */

View File

@ -242,6 +242,16 @@ Default is to monitor all CPUS.
--hierarchy::
Enable hierarchy output.
--overwrite::
Enable this to use just the most recent records, which helps in high core count
machines such as Knights Landing/Mill, but right now is disabled by default as
the pausing used in this technique is leading to loss of metadata events such
as PERF_RECORD_MMAP which makes 'perf top' unable to resolve samples, leading
to lots of unknown samples appearing on the UI. Enable this if you are in such
machines and profiling a workload that doesn't creates short lived threads and/or
doesn't uses many executable mmap operations. Work is being planed to solve
this situation, till then, this will remain disabled by default.
--force::
Don't do ownership validation.

View File

@ -1,4 +1,5 @@
include ../scripts/Makefile.include
include ../scripts/Makefile.arch
# The default target of this Makefile is...
all:
@ -385,6 +386,8 @@ export INSTALL SHELL_PATH
SHELL = $(SHELL_PATH)
linux_uapi_dir := $(srctree)/tools/include/uapi/linux
asm_generic_uapi_dir := $(srctree)/tools/include/uapi/asm-generic
arch_asm_uapi_dir := $(srctree)/tools/arch/$(ARCH)/include/uapi/asm/
beauty_outdir := $(OUTPUT)trace/beauty/generated
beauty_ioctl_outdir := $(beauty_outdir)/ioctl
@ -460,6 +463,18 @@ madvise_behavior_tbl := $(srctree)/tools/perf/trace/beauty/madvise_behavior.sh
$(madvise_behavior_array): $(madvise_hdr_dir)/mman-common.h $(madvise_behavior_tbl)
$(Q)$(SHELL) '$(madvise_behavior_tbl)' $(madvise_hdr_dir) > $@
mmap_flags_array := $(beauty_outdir)/mmap_flags_array.c
mmap_flags_tbl := $(srctree)/tools/perf/trace/beauty/mmap_flags.sh
$(mmap_flags_array): $(asm_generic_uapi_dir)/mman.h $(asm_generic_uapi_dir)/mman-common.h $(arch_asm_uapi_dir)/mman.h $(mmap_flags_tbl)
$(Q)$(SHELL) '$(mmap_flags_tbl)' $(asm_generic_uapi_dir) $(arch_asm_uapi_dir) > $@
mount_flags_array := $(beauty_outdir)/mount_flags_array.c
mount_flags_tbl := $(srctree)/tools/perf/trace/beauty/mount_flags.sh
$(mount_flags_array): $(linux_uapi_dir)/fs.h $(mount_flags_tbl)
$(Q)$(SHELL) '$(mount_flags_tbl)' $(linux_uapi_dir) > $@
prctl_option_array := $(beauty_outdir)/prctl_option_array.c
prctl_hdr_dir := $(srctree)/tools/include/uapi/linux/
prctl_option_tbl := $(srctree)/tools/perf/trace/beauty/prctl_option.sh
@ -577,6 +592,8 @@ prepare: $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)common-cmds.h archheaders $(drm_ioc
$(socket_ipproto_array) \
$(vhost_virtio_ioctl_array) \
$(madvise_behavior_array) \
$(mmap_flags_array) \
$(mount_flags_array) \
$(perf_ioctl_array) \
$(prctl_option_array) \
$(arch_errno_name_array)
@ -863,6 +880,8 @@ clean:: $(LIBTRACEEVENT)-clean $(LIBAPI)-clean $(LIBBPF)-clean $(LIBSUBCMD)-clea
$(OUTPUT)tests/llvm-src-{base,kbuild,prologue,relocation}.c \
$(OUTPUT)pmu-events/pmu-events.c \
$(OUTPUT)$(madvise_behavior_array) \
$(OUTPUT)$(mmap_flags_array) \
$(OUTPUT)$(mount_flags_array) \
$(OUTPUT)$(drm_ioctl_array) \
$(OUTPUT)$(pkey_alloc_access_rights_array) \
$(OUTPUT)$(sndrv_ctl_ioctl_array) \

View File

@ -1134,11 +1134,6 @@ static int __cmd_top(struct perf_top *top)
if (!target__none(&opts->target))
perf_evlist__enable(top->evlist);
/* Wait for a minimal set of events before starting the snapshot */
perf_evlist__poll(top->evlist, 100);
perf_top__mmap_read(top);
ret = -1;
if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui :
display_thread), top)) {
@ -1156,6 +1151,11 @@ static int __cmd_top(struct perf_top *top)
}
}
/* Wait for a minimal set of events before starting the snapshot */
perf_evlist__poll(top->evlist, 100);
perf_top__mmap_read(top);
while (!done) {
u64 hits = top->samples;
@ -1257,7 +1257,14 @@ int cmd_top(int argc, const char **argv)
.uses_mmap = true,
},
.proc_map_timeout = 500,
.overwrite = 1,
/*
* FIXME: This will lose PERF_RECORD_MMAP and other metadata
* when we pause, fix that and reenable. Probably using a
* separate evlist with a dummy event, i.e. a non-overwrite
* ring buffer just for metadata events, while PERF_RECORD_SAMPLE
* stays in overwrite mode. -acme
* */
.overwrite = 0,
},
.max_stack = sysctl__max_stack(),
.annotation_opts = annotation__default_options,
@ -1372,6 +1379,8 @@ int cmd_top(int argc, const char **argv)
"Show raw trace event output (do not use print fmt or plugins)"),
OPT_BOOLEAN(0, "hierarchy", &symbol_conf.report_hierarchy,
"Show entries in a hierarchy"),
OPT_BOOLEAN(0, "overwrite", &top.record_opts.overwrite,
"Use a backward ring buffer, default: no"),
OPT_BOOLEAN(0, "force", &symbol_conf.force, "don't complain, do it"),
OPT_UINTEGER(0, "num-thread-synthesize", &top.nr_threads_synthesize,
"number of thread to run event synthesize"),

View File

@ -614,6 +614,7 @@ static size_t syscall_arg__scnprintf_getrandom_flags(char *bf, size_t size,
struct syscall_arg_fmt {
size_t (*scnprintf)(char *bf, size_t size, struct syscall_arg *arg);
unsigned long (*mask_val)(struct syscall_arg *arg, unsigned long val);
void *parm;
const char *name;
bool show_zero;
@ -725,6 +726,10 @@ static struct syscall_fmt {
.arg = { [0] = { .scnprintf = SCA_HEX, /* addr */ },
[2] = { .scnprintf = SCA_MMAP_PROT, /* prot */ },
[3] = { .scnprintf = SCA_MMAP_FLAGS, /* flags */ }, }, },
{ .name = "mount",
.arg = { [0] = { .scnprintf = SCA_FILENAME, /* dev_name */ },
[3] = { .scnprintf = SCA_MOUNT_FLAGS, /* flags */
.mask_val = SCAMV_MOUNT_FLAGS, /* flags */ }, }, },
{ .name = "mprotect",
.arg = { [0] = { .scnprintf = SCA_HEX, /* start */ },
[2] = { .scnprintf = SCA_MMAP_PROT, /* prot */ }, }, },
@ -834,7 +839,8 @@ static struct syscall_fmt {
.arg = { [2] = { .scnprintf = SCA_SIGNUM, /* sig */ }, }, },
{ .name = "tkill",
.arg = { [1] = { .scnprintf = SCA_SIGNUM, /* sig */ }, }, },
{ .name = "umount2", .alias = "umount", },
{ .name = "umount2", .alias = "umount",
.arg = { [0] = { .scnprintf = SCA_FILENAME, /* name */ }, }, },
{ .name = "uname", .alias = "newuname", },
{ .name = "unlinkat",
.arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ }, }, },
@ -858,6 +864,18 @@ static struct syscall_fmt *syscall_fmt__find(const char *name)
return bsearch(name, syscall_fmts, nmemb, sizeof(struct syscall_fmt), syscall_fmt__cmp);
}
static struct syscall_fmt *syscall_fmt__find_by_alias(const char *alias)
{
int i, nmemb = ARRAY_SIZE(syscall_fmts);
for (i = 0; i < nmemb; ++i) {
if (syscall_fmts[i].alias && strcmp(syscall_fmts[i].alias, alias) == 0)
return &syscall_fmts[i];
}
return NULL;
}
/*
* is_exit: is this "exit" or "exit_group"?
* is_open: is this "open" or "openat"? To associate the fd returned in sys_exit with the pathname in sys_enter.
@ -1487,6 +1505,19 @@ static size_t syscall__scnprintf_name(struct syscall *sc, char *bf, size_t size,
return scnprintf(bf, size, "arg%d: ", arg->idx);
}
/*
* Check if the value is in fact zero, i.e. mask whatever needs masking, such
* as mount 'flags' argument that needs ignoring some magic flag, see comment
* in tools/perf/trace/beauty/mount_flags.c
*/
static unsigned long syscall__mask_val(struct syscall *sc, struct syscall_arg *arg, unsigned long val)
{
if (sc->arg_fmt && sc->arg_fmt[arg->idx].mask_val)
return sc->arg_fmt[arg->idx].mask_val(arg, val);
return val;
}
static size_t syscall__scnprintf_val(struct syscall *sc, char *bf, size_t size,
struct syscall_arg *arg, unsigned long val)
{
@ -1535,6 +1566,11 @@ static size_t syscall__scnprintf_args(struct syscall *sc, char *bf, size_t size,
continue;
val = syscall_arg__val(&arg, arg.idx);
/*
* Some syscall args need some mask, most don't and
* return val untouched.
*/
val = syscall__mask_val(sc, &arg, val);
/*
* Suppress this argument if its value is zero and
@ -3173,6 +3209,7 @@ static int trace__parse_events_option(const struct option *opt, const char *str,
int len = strlen(str) + 1, err = -1, list, idx;
char *strace_groups_dir = system_path(STRACE_GROUPS_DIR);
char group_name[PATH_MAX];
struct syscall_fmt *fmt;
if (strace_groups_dir == NULL)
return -1;
@ -3190,12 +3227,19 @@ static int trace__parse_events_option(const struct option *opt, const char *str,
if (syscalltbl__id(trace->sctbl, s) >= 0 ||
syscalltbl__strglobmatch_first(trace->sctbl, s, &idx) >= 0) {
list = 1;
goto do_concat;
}
fmt = syscall_fmt__find_by_alias(s);
if (fmt != NULL) {
list = 1;
s = fmt->name;
} else {
path__join(group_name, sizeof(group_name), strace_groups_dir, s);
if (access(group_name, R_OK) == 0)
list = 1;
}
do_concat:
if (lists[list]) {
sprintf(lists[list] + strlen(lists[list]), ",%s", s);
} else {

View File

@ -5,6 +5,7 @@ HEADERS='
include/uapi/drm/drm.h
include/uapi/drm/i915_drm.h
include/uapi/linux/fcntl.h
include/uapi/linux/fs.h
include/uapi/linux/kcmp.h
include/uapi/linux/kvm.h
include/uapi/linux/in.h

View File

@ -5,6 +5,7 @@ ifeq ($(SRCARCH),$(filter $(SRCARCH),x86))
libperf-y += ioctl.o
endif
libperf-y += kcmp.o
libperf-y += mount_flags.o
libperf-y += pkey_alloc.o
libperf-y += prctl.o
libperf-y += sockaddr.o

View File

@ -24,6 +24,7 @@ struct strarray {
}
size_t strarray__scnprintf(struct strarray *sa, char *bf, size_t size, const char *intfmt, int val);
size_t strarray__scnprintf_flags(struct strarray *sa, char *bf, size_t size, unsigned long flags);
struct trace;
struct thread;
@ -122,6 +123,12 @@ size_t syscall_arg__scnprintf_kcmp_type(char *bf, size_t size, struct syscall_ar
size_t syscall_arg__scnprintf_kcmp_idx(char *bf, size_t size, struct syscall_arg *arg);
#define SCA_KCMP_IDX syscall_arg__scnprintf_kcmp_idx
unsigned long syscall_arg__mask_val_mount_flags(struct syscall_arg *arg, unsigned long flags);
#define SCAMV_MOUNT_FLAGS syscall_arg__mask_val_mount_flags
size_t syscall_arg__scnprintf_mount_flags(char *bf, size_t size, struct syscall_arg *arg);
#define SCA_MOUNT_FLAGS syscall_arg__scnprintf_mount_flags
size_t syscall_arg__scnprintf_pkey_alloc_access_rights(char *bf, size_t size, struct syscall_arg *arg);
#define SCA_PKEY_ALLOC_ACCESS_RIGHTS syscall_arg__scnprintf_pkey_alloc_access_rights

View File

@ -1,9 +1,8 @@
// SPDX-License-Identifier: LGPL-2.1
/*
* trace/beauty/cone.c
*
* Copyright (C) 2017, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
*
* Released under the GPL v2. (and only v2, not any later version)
*/
#include "trace/beauty/beauty.h"

View File

@ -1,4 +1,5 @@
#!/bin/sh
# SPDX-License-Identifier: LGPL-2.1
[ $# -eq 1 ] && header_dir=$1 || header_dir=tools/include/uapi/drm/

View File

@ -1,4 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
// SPDX-License-Identifier: LGPL-2.1
#ifndef EFD_SEMAPHORE
#define EFD_SEMAPHORE 1
#endif

View File

@ -1,9 +1,8 @@
// SPDX-License-Identifier: LGPL-2.1
/*
* trace/beauty/fcntl.c
*
* Copyright (C) 2017, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
*
* Released under the GPL v2. (and only v2, not any later version)
*/
#include "trace/beauty/beauty.h"

View File

@ -1,4 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
// SPDX-License-Identifier: LGPL-2.1
#include "trace/beauty/beauty.h"
#include <linux/kernel.h>

View File

@ -1,4 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
// SPDX-License-Identifier: LGPL-2.1
#include <linux/futex.h>
#ifndef FUTEX_WAIT_BITSET

View File

@ -1,4 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
// SPDX-License-Identifier: LGPL-2.1
#include <linux/futex.h>
#ifndef FUTEX_BITSET_MATCH_ANY

View File

@ -1,9 +1,8 @@
// SPDX-License-Identifier: LGPL-2.1
/*
* trace/beauty/ioctl.c
*
* Copyright (C) 2017, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
*
* Released under the GPL v2. (and only v2, not any later version)
*/
#include "trace/beauty/beauty.h"

View File

@ -1,9 +1,8 @@
// SPDX-License-Identifier: LGPL-2.1
/*
* trace/beauty/kcmp.c
*
* Copyright (C) 2017, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
*
* Released under the GPL v2. (and only v2, not any later version)
*/
#include "trace/beauty/beauty.h"

View File

@ -1,4 +1,5 @@
#!/bin/sh
# SPDX-License-Identifier: LGPL-2.1
[ $# -eq 1 ] && header_dir=$1 || header_dir=tools/include/uapi/linux/

View File

@ -1,4 +1,5 @@
#!/bin/sh
# SPDX-License-Identifier: LGPL-2.1
[ $# -eq 1 ] && header_dir=$1 || header_dir=tools/include/uapi/linux/

View File

@ -1,4 +1,5 @@
#!/bin/sh
# SPDX-License-Identifier: LGPL-2.1
[ $# -eq 1 ] && header_dir=$1 || header_dir=tools/include/uapi/asm-generic/

View File

@ -1,5 +1,6 @@
// SPDX-License-Identifier: GPL-2.0
// SPDX-License-Identifier: LGPL-2.1
#include <uapi/linux/mman.h>
#include <linux/log2.h>
static size_t syscall_arg__scnprintf_mmap_prot(char *bf, size_t size,
struct syscall_arg *arg)
@ -30,50 +31,23 @@ static size_t syscall_arg__scnprintf_mmap_prot(char *bf, size_t size,
#define SCA_MMAP_PROT syscall_arg__scnprintf_mmap_prot
static size_t mmap__scnprintf_flags(unsigned long flags, char *bf, size_t size)
{
#include "trace/beauty/generated/mmap_flags_array.c"
static DEFINE_STRARRAY(mmap_flags);
return strarray__scnprintf_flags(&strarray__mmap_flags, bf, size, flags);
}
static size_t syscall_arg__scnprintf_mmap_flags(char *bf, size_t size,
struct syscall_arg *arg)
{
int printed = 0, flags = arg->val;
unsigned long flags = arg->val;
if (flags & MAP_ANONYMOUS)
arg->mask |= (1 << 4) | (1 << 5); /* Mask 4th ('fd') and 5th ('offset') args, ignored */
#define P_MMAP_FLAG(n) \
if (flags & MAP_##n) { \
printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
flags &= ~MAP_##n; \
}
P_MMAP_FLAG(SHARED);
P_MMAP_FLAG(PRIVATE);
#ifdef MAP_32BIT
P_MMAP_FLAG(32BIT);
#endif
P_MMAP_FLAG(ANONYMOUS);
P_MMAP_FLAG(DENYWRITE);
P_MMAP_FLAG(EXECUTABLE);
P_MMAP_FLAG(FILE);
P_MMAP_FLAG(FIXED);
#ifdef MAP_FIXED_NOREPLACE
P_MMAP_FLAG(FIXED_NOREPLACE);
#endif
P_MMAP_FLAG(GROWSDOWN);
P_MMAP_FLAG(HUGETLB);
P_MMAP_FLAG(LOCKED);
P_MMAP_FLAG(NONBLOCK);
P_MMAP_FLAG(NORESERVE);
P_MMAP_FLAG(POPULATE);
P_MMAP_FLAG(STACK);
P_MMAP_FLAG(UNINITIALIZED);
#ifdef MAP_SYNC
P_MMAP_FLAG(SYNC);
#endif
#undef P_MMAP_FLAG
if (flags)
printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
return printed;
return mmap__scnprintf_flags(flags, bf, size);
}
#define SCA_MMAP_FLAGS syscall_arg__scnprintf_mmap_flags

View File

@ -0,0 +1,32 @@
#!/bin/sh
# SPDX-License-Identifier: LGPL-2.1
if [ $# -ne 2 ] ; then
[ $# -eq 1 ] && hostarch=$1 || hostarch=`uname -m | sed -e s/i.86/x86/ -e s/x86_64/x86/`
header_dir=tools/include/uapi/asm-generic
arch_header_dir=tools/arch/${hostarch}/include/uapi/asm
else
header_dir=$1
arch_header_dir=$2
fi
arch_mman=${arch_header_dir}/mman.h
# those in egrep -vw are flags, we want just the bits
printf "static const char *mmap_flags[] = {\n"
regex='^[[:space:]]*#[[:space:]]*define[[:space:]]+MAP_([[:alnum:]_]+)[[:space:]]+(0x[[:xdigit:]]+)[[:space:]]*.*'
egrep -q $regex ${arch_mman} && \
(egrep $regex ${arch_mman} | \
sed -r "s/$regex/\2 \1/g" | \
xargs printf "\t[ilog2(%s) + 1] = \"%s\",\n")
egrep -q '#[[:space:]]*include[[:space:]]+<uapi/asm-generic/mman.*' ${arch_mman} &&
(egrep $regex ${header_dir}/mman-common.h | \
egrep -vw 'MAP_(UNINITIALIZED|TYPE|SHARED_VALIDATE)' | \
sed -r "s/$regex/\2 \1/g" | \
xargs printf "\t[ilog2(%s) + 1] = \"%s\",\n")
egrep -q '#[[:space:]]*include[[:space:]]+<uapi/asm-generic/mman.h>.*' ${arch_mman} &&
(egrep $regex ${header_dir}/mman.h | \
sed -r "s/$regex/\2 \1/g" | \
xargs printf "\t[ilog2(%s) + 1] = \"%s\",\n")
printf "};\n"

View File

@ -1,4 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
// SPDX-License-Identifier: LGPL-2.1
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>

View File

@ -0,0 +1,43 @@
// SPDX-License-Identifier: LGPL-2.1
/*
* trace/beauty/mount_flags.c
*
* Copyright (C) 2018, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
*/
#include "trace/beauty/beauty.h"
#include <linux/compiler.h>
#include <linux/kernel.h>
#include <linux/log2.h>
#include <sys/mount.h>
static size_t mount__scnprintf_flags(unsigned long flags, char *bf, size_t size)
{
#include "trace/beauty/generated/mount_flags_array.c"
static DEFINE_STRARRAY(mount_flags);
return strarray__scnprintf_flags(&strarray__mount_flags, bf, size, flags);
}
unsigned long syscall_arg__mask_val_mount_flags(struct syscall_arg *arg __maybe_unused, unsigned long flags)
{
// do_mount in fs/namespace.c:
/*
* Pre-0.97 versions of mount() didn't have a flags word. When the
* flags word was introduced its top half was required to have the
* magic value 0xC0ED, and this remained so until 2.4.0-test9.
* Therefore, if this magic number is present, it carries no
* information and must be discarded.
*/
if ((flags & MS_MGC_MSK) == MS_MGC_VAL)
flags &= ~MS_MGC_MSK;
return flags;
}
size_t syscall_arg__scnprintf_mount_flags(char *bf, size_t size, struct syscall_arg *arg)
{
unsigned long flags = arg->val;
return mount__scnprintf_flags(flags, bf, size);
}

View File

@ -0,0 +1,15 @@
#!/bin/sh
# SPDX-License-Identifier: LGPL-2.1
[ $# -eq 1 ] && header_dir=$1 || header_dir=tools/include/uapi/linux/
printf "static const char *mount_flags[] = {\n"
regex='^[[:space:]]*#[[:space:]]*define[[:space:]]+MS_([[:alnum:]_]+)[[:space:]]+([[:digit:]]+)[[:space:]]*.*'
egrep $regex ${header_dir}/fs.h | egrep -v '(MSK|VERBOSE|MGC_VAL)\>' | \
sed -r "s/$regex/\2 \2 \1/g" | sort -n | \
xargs printf "\t[%s ? (ilog2(%s) + 1) : 0] = \"%s\",\n"
regex='^[[:space:]]*#[[:space:]]*define[[:space:]]+MS_([[:alnum:]_]+)[[:space:]]+\(1<<([[:digit:]]+)\)[[:space:]]*.*'
egrep $regex ${header_dir}/fs.h | \
sed -r "s/$regex/\2 \1/g" | \
xargs printf "\t[%s + 1] = \"%s\",\n"
printf "};\n"

View File

@ -1,4 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
// SPDX-License-Identifier: LGPL-2.1
#include <sys/types.h>
#include <sys/socket.h>

View File

@ -1,4 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
// SPDX-License-Identifier: LGPL-2.1
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>

View File

@ -1,4 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
// SPDX-License-Identifier: LGPL-2.1
#ifndef PERF_FLAG_FD_NO_GROUP
# define PERF_FLAG_FD_NO_GROUP (1UL << 0)
#endif

View File

@ -1,4 +1,5 @@
#!/bin/sh
# SPDX-License-Identifier: LGPL-2.1
[ $# -eq 1 ] && header_dir=$1 || header_dir=tools/include/uapi/linux/

View File

@ -1,4 +1,5 @@
// SPDX-License-Identifier: GPL-2.0
// SPDX-License-Identifier: LGPL-2.1
size_t syscall_arg__scnprintf_pid(char *bf, size_t size, struct syscall_arg *arg)
{
int pid = arg->val;

View File

@ -1,40 +1,36 @@
// SPDX-License-Identifier: LGPL-2.1
/*
* trace/beauty/pkey_alloc.c
*
* Copyright (C) 2017, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
*
* Released under the GPL v2. (and only v2, not any later version)
*/
#include "trace/beauty/beauty.h"
#include <linux/kernel.h>
#include <linux/log2.h>
static size_t pkey_alloc__scnprintf_access_rights(int access_rights, char *bf, size_t size)
size_t strarray__scnprintf_flags(struct strarray *sa, char *bf, size_t size, unsigned long flags)
{
int i, printed = 0;
#include "trace/beauty/generated/pkey_alloc_access_rights_array.c"
static DEFINE_STRARRAY(pkey_alloc_access_rights);
if (access_rights == 0) {
const char *s = strarray__pkey_alloc_access_rights.entries[0];
if (flags == 0) {
const char *s = sa->entries[0];
if (s)
return scnprintf(bf, size, "%s", s);
return scnprintf(bf, size, "%d", 0);
}
for (i = 1; i < strarray__pkey_alloc_access_rights.nr_entries; ++i) {
int bit = 1 << (i - 1);
for (i = 1; i < sa->nr_entries; ++i) {
unsigned long bit = 1UL << (i - 1);
if (!(access_rights & bit))
if (!(flags & bit))
continue;
if (printed != 0)
printed += scnprintf(bf + printed, size - printed, "|");
if (strarray__pkey_alloc_access_rights.entries[i] != NULL)
printed += scnprintf(bf + printed, size - printed, "%s", strarray__pkey_alloc_access_rights.entries[i]);
if (sa->entries[i] != NULL)
printed += scnprintf(bf + printed, size - printed, "%s", sa->entries[i]);
else
printed += scnprintf(bf + printed, size - printed, "0x%#", bit);
}
@ -42,6 +38,14 @@ static size_t pkey_alloc__scnprintf_access_rights(int access_rights, char *bf, s
return printed;
}
static size_t pkey_alloc__scnprintf_access_rights(int access_rights, char *bf, size_t size)
{
#include "trace/beauty/generated/pkey_alloc_access_rights_array.c"
static DEFINE_STRARRAY(pkey_alloc_access_rights);
return strarray__scnprintf_flags(&strarray__pkey_alloc_access_rights, bf, size, access_rights);
}
size_t syscall_arg__scnprintf_pkey_alloc_access_rights(char *bf, size_t size, struct syscall_arg *arg)
{
unsigned long cmd = arg->val;

View File

@ -1,4 +1,5 @@
#!/bin/sh
# SPDX-License-Identifier: LGPL-2.1
[ $# -eq 1 ] && header_dir=$1 || header_dir=tools/include/uapi/asm-generic/

View File

@ -1,9 +1,8 @@
// SPDX-License-Identifier: LGPL-2.1
/*
* trace/beauty/prctl.c
*
* Copyright (C) 2017, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
*
* Released under the GPL v2. (and only v2, not any later version)
*/
#include "trace/beauty/beauty.h"

View File

@ -1,4 +1,5 @@
#!/bin/sh
# SPDX-License-Identifier: LGPL-2.1
[ $# -eq 1 ] && header_dir=$1 || header_dir=tools/include/uapi/linux/

View File

@ -1,4 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
// SPDX-License-Identifier: LGPL-2.1
#include <sched.h>
/*

View File

@ -1,4 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
// SPDX-License-Identifier: LGPL-2.1
#ifndef SECCOMP_SET_MODE_STRICT
#define SECCOMP_SET_MODE_STRICT 0
#endif

View File

@ -1,4 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
// SPDX-License-Identifier: LGPL-2.1
#include <signal.h>
static size_t syscall_arg__scnprintf_signum(char *bf, size_t size, struct syscall_arg *arg)

View File

@ -1,4 +1,5 @@
#!/bin/sh
# SPDX-License-Identifier: LGPL-2.1
[ $# -eq 1 ] && header_dir=$1 || header_dir=tools/include/uapi/sound/

View File

@ -1,4 +1,5 @@
#!/bin/sh
# SPDX-License-Identifier: LGPL-2.1
[ $# -eq 1 ] && header_dir=$1 || header_dir=tools/include/uapi/sound/

View File

@ -1,4 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
// SPDX-License-Identifier: LGPL-2.1
// Copyright (C) 2018, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
#include "trace/beauty/beauty.h"

View File

@ -1,4 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
// SPDX-License-Identifier: LGPL-2.1
/*
* trace/beauty/socket.c
*

View File

@ -1,4 +1,5 @@
#!/bin/sh
# SPDX-License-Identifier: LGPL-2.1
[ $# -eq 1 ] && header_dir=$1 || header_dir=tools/include/uapi/linux/

View File

@ -1,4 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
// SPDX-License-Identifier: LGPL-2.1
#include <sys/types.h>
#include <sys/socket.h>

View File

@ -1,9 +1,8 @@
// SPDX-License-Identifier: LGPL-2.1
/*
* trace/beauty/statx.c
*
* Copyright (C) 2017, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
*
* Released under the GPL v2. (and only v2, not any later version)
*/
#include "trace/beauty/beauty.h"

View File

@ -1,4 +1,5 @@
#!/bin/sh
# SPDX-License-Identifier: LGPL-2.1
[ $# -eq 1 ] && header_dir=$1 || header_dir=tools/include/uapi/linux/

View File

@ -1,4 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
// SPDX-License-Identifier: LGPL-2.1
#include <sys/types.h>
#include <sys/wait.h>

View File

@ -244,6 +244,27 @@ static void cs_etm__free(struct perf_session *session)
zfree(&aux);
}
static u8 cs_etm__cpu_mode(struct cs_etm_queue *etmq, u64 address)
{
struct machine *machine;
machine = etmq->etm->machine;
if (address >= etmq->etm->kernel_start) {
if (machine__is_host(machine))
return PERF_RECORD_MISC_KERNEL;
else
return PERF_RECORD_MISC_GUEST_KERNEL;
} else {
if (machine__is_host(machine))
return PERF_RECORD_MISC_USER;
else if (perf_guest)
return PERF_RECORD_MISC_GUEST_USER;
else
return PERF_RECORD_MISC_HYPERVISOR;
}
}
static u32 cs_etm__mem_access(struct cs_etm_queue *etmq, u64 address,
size_t size, u8 *buffer)
{
@ -258,10 +279,7 @@ static u32 cs_etm__mem_access(struct cs_etm_queue *etmq, u64 address,
return -1;
machine = etmq->etm->machine;
if (address >= etmq->etm->kernel_start)
cpumode = PERF_RECORD_MISC_KERNEL;
else
cpumode = PERF_RECORD_MISC_USER;
cpumode = cs_etm__cpu_mode(etmq, address);
thread = etmq->thread;
if (!thread) {
@ -653,7 +671,7 @@ static int cs_etm__synth_instruction_sample(struct cs_etm_queue *etmq,
struct perf_sample sample = {.ip = 0,};
event->sample.header.type = PERF_RECORD_SAMPLE;
event->sample.header.misc = PERF_RECORD_MISC_USER;
event->sample.header.misc = cs_etm__cpu_mode(etmq, addr);
event->sample.header.size = sizeof(struct perf_event_header);
sample.ip = addr;
@ -665,7 +683,7 @@ static int cs_etm__synth_instruction_sample(struct cs_etm_queue *etmq,
sample.cpu = etmq->packet->cpu;
sample.flags = 0;
sample.insn_len = 1;
sample.cpumode = event->header.misc;
sample.cpumode = event->sample.header.misc;
if (etm->synth_opts.last_branch) {
cs_etm__copy_last_branch_rb(etmq);
@ -706,12 +724,15 @@ static int cs_etm__synth_branch_sample(struct cs_etm_queue *etmq)
u64 nr;
struct branch_entry entries;
} dummy_bs;
u64 ip;
ip = cs_etm__last_executed_instr(etmq->prev_packet);
event->sample.header.type = PERF_RECORD_SAMPLE;
event->sample.header.misc = PERF_RECORD_MISC_USER;
event->sample.header.misc = cs_etm__cpu_mode(etmq, ip);
event->sample.header.size = sizeof(struct perf_event_header);
sample.ip = cs_etm__last_executed_instr(etmq->prev_packet);
sample.ip = ip;
sample.pid = etmq->pid;
sample.tid = etmq->tid;
sample.addr = cs_etm__first_executed_instr(etmq->packet);
@ -720,7 +741,7 @@ static int cs_etm__synth_branch_sample(struct cs_etm_queue *etmq)
sample.period = 1;
sample.cpu = etmq->packet->cpu;
sample.flags = 0;
sample.cpumode = PERF_RECORD_MISC_USER;
sample.cpumode = event->sample.header.misc;
/*
* perf report cannot handle events without a branch stack

View File

@ -308,6 +308,7 @@ static int perf_event__synthesize_fork(struct perf_tool *tool,
event->fork.pid = tgid;
event->fork.tid = pid;
event->fork.header.type = PERF_RECORD_FORK;
event->fork.header.misc = PERF_RECORD_MISC_FORK_EXEC;
event->fork.header.size = (sizeof(event->fork) + machine->id_hdr_size);

View File

@ -269,6 +269,13 @@ static int intel_bts_do_fix_overlap(struct auxtrace_queue *queue,
return 0;
}
static inline u8 intel_bts_cpumode(struct intel_bts *bts, uint64_t ip)
{
return machine__kernel_ip(bts->machine, ip) ?
PERF_RECORD_MISC_KERNEL :
PERF_RECORD_MISC_USER;
}
static int intel_bts_synth_branch_sample(struct intel_bts_queue *btsq,
struct branch *branch)
{
@ -281,12 +288,8 @@ static int intel_bts_synth_branch_sample(struct intel_bts_queue *btsq,
bts->num_events++ <= bts->synth_opts.initial_skip)
return 0;
event.sample.header.type = PERF_RECORD_SAMPLE;
event.sample.header.misc = PERF_RECORD_MISC_USER;
event.sample.header.size = sizeof(struct perf_event_header);
sample.cpumode = PERF_RECORD_MISC_USER;
sample.ip = le64_to_cpu(branch->from);
sample.cpumode = intel_bts_cpumode(bts, sample.ip);
sample.pid = btsq->pid;
sample.tid = btsq->tid;
sample.addr = le64_to_cpu(branch->to);
@ -298,6 +301,10 @@ static int intel_bts_synth_branch_sample(struct intel_bts_queue *btsq,
sample.insn_len = btsq->intel_pt_insn.length;
memcpy(sample.insn, btsq->intel_pt_insn.buf, INTEL_PT_INSN_BUF_SZ);
event.sample.header.type = PERF_RECORD_SAMPLE;
event.sample.header.misc = sample.cpumode;
event.sample.header.size = sizeof(struct perf_event_header);
if (bts->synth_opts.inject) {
event.sample.header.size = bts->branches_event_size;
ret = perf_event__synthesize_sample(&event,

View File

@ -407,6 +407,13 @@ intel_pt_cache_lookup(struct dso *dso, struct machine *machine, u64 offset)
return auxtrace_cache__lookup(dso->auxtrace_cache, offset);
}
static inline u8 intel_pt_cpumode(struct intel_pt *pt, uint64_t ip)
{
return ip >= pt->kernel_start ?
PERF_RECORD_MISC_KERNEL :
PERF_RECORD_MISC_USER;
}
static int intel_pt_walk_next_insn(struct intel_pt_insn *intel_pt_insn,
uint64_t *insn_cnt_ptr, uint64_t *ip,
uint64_t to_ip, uint64_t max_insn_cnt,
@ -429,10 +436,7 @@ static int intel_pt_walk_next_insn(struct intel_pt_insn *intel_pt_insn,
if (to_ip && *ip == to_ip)
goto out_no_cache;
if (*ip >= ptq->pt->kernel_start)
cpumode = PERF_RECORD_MISC_KERNEL;
else
cpumode = PERF_RECORD_MISC_USER;
cpumode = intel_pt_cpumode(ptq->pt, *ip);
thread = ptq->thread;
if (!thread) {
@ -759,7 +763,8 @@ static struct intel_pt_queue *intel_pt_alloc_queue(struct intel_pt *pt,
if (pt->synth_opts.callchain) {
size_t sz = sizeof(struct ip_callchain);
sz += pt->synth_opts.callchain_sz * sizeof(u64);
/* Add 1 to callchain_sz for callchain context */
sz += (pt->synth_opts.callchain_sz + 1) * sizeof(u64);
ptq->chain = zalloc(sz);
if (!ptq->chain)
goto out_free;
@ -1058,15 +1063,11 @@ static void intel_pt_prep_b_sample(struct intel_pt *pt,
union perf_event *event,
struct perf_sample *sample)
{
event->sample.header.type = PERF_RECORD_SAMPLE;
event->sample.header.misc = PERF_RECORD_MISC_USER;
event->sample.header.size = sizeof(struct perf_event_header);
if (!pt->timeless_decoding)
sample->time = tsc_to_perf_time(ptq->timestamp, &pt->tc);
sample->cpumode = PERF_RECORD_MISC_USER;
sample->ip = ptq->state->from_ip;
sample->cpumode = intel_pt_cpumode(pt, sample->ip);
sample->pid = ptq->pid;
sample->tid = ptq->tid;
sample->addr = ptq->state->to_ip;
@ -1075,6 +1076,10 @@ static void intel_pt_prep_b_sample(struct intel_pt *pt,
sample->flags = ptq->flags;
sample->insn_len = ptq->insn_len;
memcpy(sample->insn, ptq->insn, INTEL_PT_INSN_BUF_SZ);
event->sample.header.type = PERF_RECORD_SAMPLE;
event->sample.header.misc = sample->cpumode;
event->sample.header.size = sizeof(struct perf_event_header);
}
static int intel_pt_inject_event(union perf_event *event,
@ -1160,7 +1165,8 @@ static void intel_pt_prep_sample(struct intel_pt *pt,
if (pt->synth_opts.callchain) {
thread_stack__sample(ptq->thread, ptq->chain,
pt->synth_opts.callchain_sz, sample->ip);
pt->synth_opts.callchain_sz + 1,
sample->ip, pt->kernel_start);
sample->callchain = ptq->chain;
}

View File

@ -1708,6 +1708,7 @@ int machine__process_fork_event(struct machine *machine, union perf_event *event
struct thread *parent = machine__findnew_thread(machine,
event->fork.ppid,
event->fork.ptid);
bool do_maps_clone = true;
int err = 0;
if (dump_trace)
@ -1736,9 +1737,25 @@ int machine__process_fork_event(struct machine *machine, union perf_event *event
thread = machine__findnew_thread(machine, event->fork.pid,
event->fork.tid);
/*
* When synthesizing FORK events, we are trying to create thread
* objects for the already running tasks on the machine.
*
* Normally, for a kernel FORK event, we want to clone the parent's
* maps because that is what the kernel just did.
*
* But when synthesizing, this should not be done. If we do, we end up
* with overlapping maps as we process the sythesized MMAP2 events that
* get delivered shortly thereafter.
*
* Use the FORK event misc flags in an internal way to signal this
* situation, so we can elide the map clone when appropriate.
*/
if (event->fork.header.misc & PERF_RECORD_MISC_FORK_EXEC)
do_maps_clone = false;
if (thread == NULL || parent == NULL ||
thread__fork(thread, parent, sample->time) < 0) {
thread__fork(thread, parent, sample->time, do_maps_clone) < 0) {
dump_printf("problem processing PERF_RECORD_FORK, skipping event.\n");
err = -1;
}
@ -2140,6 +2157,27 @@ static int resolve_lbr_callchain_sample(struct thread *thread,
return 0;
}
static int find_prev_cpumode(struct ip_callchain *chain, struct thread *thread,
struct callchain_cursor *cursor,
struct symbol **parent,
struct addr_location *root_al,
u8 *cpumode, int ent)
{
int err = 0;
while (--ent >= 0) {
u64 ip = chain->ips[ent];
if (ip >= PERF_CONTEXT_MAX) {
err = add_callchain_ip(thread, cursor, parent,
root_al, cpumode, ip,
false, NULL, NULL, 0);
break;
}
}
return err;
}
static int thread__resolve_callchain_sample(struct thread *thread,
struct callchain_cursor *cursor,
struct perf_evsel *evsel,
@ -2246,6 +2284,12 @@ static int thread__resolve_callchain_sample(struct thread *thread,
}
check_calls:
if (callchain_param.order != ORDER_CALLEE) {
err = find_prev_cpumode(chain, thread, cursor, parent, root_al,
&cpumode, chain->nr - first_call);
if (err)
return (err < 0) ? err : 0;
}
for (i = first_call, nr_entries = 0;
i < chain_nr && nr_entries < max_stack; i++) {
u64 ip;
@ -2260,9 +2304,15 @@ check_calls:
continue;
#endif
ip = chain->ips[j];
if (ip < PERF_CONTEXT_MAX)
++nr_entries;
else if (callchain_param.order != ORDER_CALLEE) {
err = find_prev_cpumode(chain, thread, cursor, parent,
root_al, &cpumode, j);
if (err)
return (err < 0) ? err : 0;
continue;
}
err = add_callchain_ip(thread, cursor, parent,
root_al, &cpumode, ip,

View File

@ -310,20 +310,46 @@ void thread_stack__free(struct thread *thread)
}
}
void thread_stack__sample(struct thread *thread, struct ip_callchain *chain,
size_t sz, u64 ip)
static inline u64 callchain_context(u64 ip, u64 kernel_start)
{
size_t i;
return ip < kernel_start ? PERF_CONTEXT_USER : PERF_CONTEXT_KERNEL;
}
if (!thread || !thread->ts)
chain->nr = 1;
else
chain->nr = min(sz, thread->ts->cnt + 1);
void thread_stack__sample(struct thread *thread, struct ip_callchain *chain,
size_t sz, u64 ip, u64 kernel_start)
{
u64 context = callchain_context(ip, kernel_start);
u64 last_context;
size_t i, j;
chain->ips[0] = ip;
if (sz < 2) {
chain->nr = 0;
return;
}
for (i = 1; i < chain->nr; i++)
chain->ips[i] = thread->ts->stack[thread->ts->cnt - i].ret_addr;
chain->ips[0] = context;
chain->ips[1] = ip;
if (!thread || !thread->ts) {
chain->nr = 2;
return;
}
last_context = context;
for (i = 2, j = 1; i < sz && j <= thread->ts->cnt; i++, j++) {
ip = thread->ts->stack[thread->ts->cnt - j].ret_addr;
context = callchain_context(ip, kernel_start);
if (context != last_context) {
if (i >= sz - 1)
break;
chain->ips[i++] = context;
last_context = context;
}
chain->ips[i] = ip;
}
chain->nr = i;
}
struct call_return_processor *

View File

@ -84,7 +84,7 @@ int thread_stack__event(struct thread *thread, u32 flags, u64 from_ip,
u64 to_ip, u16 insn_len, u64 trace_nr);
void thread_stack__set_trace_nr(struct thread *thread, u64 trace_nr);
void thread_stack__sample(struct thread *thread, struct ip_callchain *chain,
size_t sz, u64 ip);
size_t sz, u64 ip, u64 kernel_start);
int thread_stack__flush(struct thread *thread);
void thread_stack__free(struct thread *thread);
size_t thread_stack__depth(struct thread *thread);

View File

@ -330,7 +330,8 @@ static int thread__prepare_access(struct thread *thread)
}
static int thread__clone_map_groups(struct thread *thread,
struct thread *parent)
struct thread *parent,
bool do_maps_clone)
{
/* This is new thread, we share map groups for process. */
if (thread->pid_ == parent->pid_)
@ -341,15 +342,11 @@ static int thread__clone_map_groups(struct thread *thread,
thread->pid_, thread->tid, parent->pid_, parent->tid);
return 0;
}
/* But this one is new process, copy maps. */
if (map_groups__clone(thread, parent->mg) < 0)
return -ENOMEM;
return 0;
return do_maps_clone ? map_groups__clone(thread, parent->mg) : 0;
}
int thread__fork(struct thread *thread, struct thread *parent, u64 timestamp)
int thread__fork(struct thread *thread, struct thread *parent, u64 timestamp, bool do_maps_clone)
{
if (parent->comm_set) {
const char *comm = thread__comm_str(parent);
@ -362,7 +359,7 @@ int thread__fork(struct thread *thread, struct thread *parent, u64 timestamp)
}
thread->ppid = parent->tid;
return thread__clone_map_groups(thread, parent);
return thread__clone_map_groups(thread, parent, do_maps_clone);
}
void thread__find_cpumode_addr_location(struct thread *thread, u64 addr,

View File

@ -89,7 +89,7 @@ struct comm *thread__comm(const struct thread *thread);
struct comm *thread__exec_comm(const struct thread *thread);
const char *thread__comm_str(const struct thread *thread);
int thread__insert_map(struct thread *thread, struct map *map);
int thread__fork(struct thread *thread, struct thread *parent, u64 timestamp);
int thread__fork(struct thread *thread, struct thread *parent, u64 timestamp, bool do_maps_clone);
size_t thread__fprintf(struct thread *thread, FILE *fp);
struct thread *thread__main_thread(struct machine *machine, struct thread *thread);

View File

@ -45,13 +45,13 @@ static int __report_module(struct addr_location *al, u64 ip,
Dwarf_Addr s;
dwfl_module_info(mod, NULL, &s, NULL, NULL, NULL, NULL, NULL);
if (s != al->map->start)
if (s != al->map->start - al->map->pgoff)
mod = 0;
}
if (!mod)
mod = dwfl_report_elf(ui->dwfl, dso->short_name,
(dso->symsrc_filename ? dso->symsrc_filename : dso->long_name), -1, al->map->start,
(dso->symsrc_filename ? dso->symsrc_filename : dso->long_name), -1, al->map->start - al->map->pgoff,
false);
return mod && dwfl_addrmodule(ui->dwfl, ip) == mod ? 0 : -1;