perf-eh_elf/util/jitdump.h

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Merge tag 'afs-fixes-20180514' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs Pull AFS fixes from David Howells: "Here's a set of patches that fix a number of bugs in the in-kernel AFS client, including: - Fix directory locking to not use individual page locks for directory reading/scanning but rather to use a semaphore on the afs_vnode struct as the directory contents must be read in a single blob and data from different reads must not be mixed as the entire contents may be shuffled about between reads. - Fix address list parsing to handle port specifiers correctly. - Only give up callback records on a server if we actually talked to that server (we might not be able to access a server). - Fix some callback handling bugs, including refcounting, whole-volume callbacks and when callbacks actually get broken in response to a CB.CallBack op. - Fix some server/address rotation bugs, including giving up if we can't probe a server; giving up if a server says it doesn't have a volume, but there are more servers to try. - Fix the decoding of fetched statuses to be OpenAFS compatible. - Fix the handling of server lookups in Cache Manager ops (such as CB.InitCallBackState3) to use a UUID if possible and to handle no server being found. - Fix a bug in server lookup where not all addresses are compared. - Fix the non-encryption of calls that prevents some servers from being accessed (this also requires an AF_RXRPC patch that has already gone in through the net tree). There's also a patch that adds tracepoints to log Cache Manager ops that don't find a matching server, either by UUID or by address" * tag 'afs-fixes-20180514' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs: afs: Fix the non-encryption of calls afs: Fix CB.CallBack handling afs: Fix whole-volume callback handling afs: Fix afs_find_server search loop afs: Fix the handling of an unfound server in CM operations afs: Add a tracepoint to record callbacks from unlisted servers afs: Fix the handling of CB.InitCallBackState3 to find the server by UUID afs: Fix VNOVOL handling in address rotation afs: Fix AFSFetchStatus decoder to provide OpenAFS compatibility afs: Fix server rotation's handling of fileserver probe failure afs: Fix refcounting in callback registration afs: Fix giving up callbacks on server destruction afs: Fix address list parsing afs: Fix directory page locking
2018-05-15 19:48:36 +02:00
/*
* jitdump.h: jitted code info encapsulation file format
*
* Adapted from OProfile GPLv2 support jidump.h:
* Copyright 2007 OProfile authors
* Jens Wilke
* Daniel Hansel
* Copyright IBM Corporation 2007
*/
#ifndef JITDUMP_H
#define JITDUMP_H
#include <sys/time.h>
#include <time.h>
#include <stdint.h>
/* JiTD */
#define JITHEADER_MAGIC 0x4A695444
#define JITHEADER_MAGIC_SW 0x4454694A
#define PADDING_8ALIGNED(x) ((((x) + 7) & 7) ^ 7)
#define ALIGN_8(x) (((x) + 7) & (~7))
#define JITHEADER_VERSION 1
enum jitdump_flags_bits {
JITDUMP_FLAGS_ARCH_TIMESTAMP_BIT,
JITDUMP_FLAGS_MAX_BIT,
};
#define JITDUMP_FLAGS_ARCH_TIMESTAMP (1ULL << JITDUMP_FLAGS_ARCH_TIMESTAMP_BIT)
#define JITDUMP_FLAGS_RESERVED (JITDUMP_FLAGS_MAX_BIT < 64 ? \
(~((1ULL << JITDUMP_FLAGS_MAX_BIT) - 1)) : 0)
struct jitheader {
uint32_t magic; /* characters "jItD" */
uint32_t version; /* header version */
uint32_t total_size; /* total size of header */
uint32_t elf_mach; /* elf mach target */
uint32_t pad1; /* reserved */
uint32_t pid; /* JIT process id */
uint64_t timestamp; /* timestamp */
uint64_t flags; /* flags */
};
enum jit_record_type {
JIT_CODE_LOAD = 0,
JIT_CODE_MOVE = 1,
JIT_CODE_DEBUG_INFO = 2,
JIT_CODE_CLOSE = 3,
JIT_CODE_UNWINDING_INFO = 4,
JIT_CODE_MAX,
};
/* record prefix (mandatory in each record) */
struct jr_prefix {
uint32_t id;
uint32_t total_size;
uint64_t timestamp;
};
struct jr_code_load {
struct jr_prefix p;
uint32_t pid;
uint32_t tid;
uint64_t vma;
uint64_t code_addr;
uint64_t code_size;
uint64_t code_index;
};
struct jr_code_close {
struct jr_prefix p;
};
struct jr_code_move {
struct jr_prefix p;
uint32_t pid;
uint32_t tid;
uint64_t vma;
uint64_t old_code_addr;
uint64_t new_code_addr;
uint64_t code_size;
uint64_t code_index;
};
struct debug_entry {
uint64_t addr;
int lineno; /* source line number starting at 1 */
int discrim; /* column discriminator, 0 is default */
const char name[0]; /* null terminated filename, \xff\0 if same as previous entry */
};
struct jr_code_debug_info {
struct jr_prefix p;
uint64_t code_addr;
uint64_t nr_entry;
struct debug_entry entries[0];
};
struct jr_code_unwinding_info {
struct jr_prefix p;
uint64_t unwinding_size;
uint64_t eh_frame_hdr_size;
uint64_t mapped_size;
const char unwinding_data[0];
};
union jr_entry {
struct jr_code_debug_info info;
struct jr_code_close close;
struct jr_code_load load;
struct jr_code_move move;
struct jr_prefix prefix;
struct jr_code_unwinding_info unwinding;
};
static inline struct debug_entry *
debug_entry_next(struct debug_entry *ent)
{
void *a = ent + 1;
size_t l = strlen(ent->name) + 1;
return a + l;
}
static inline char *
debug_entry_file(struct debug_entry *ent)
{
void *a = ent + 1;
return a;
}
#endif /* !JITDUMP_H */