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Copy pathvmprof_common.h
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117 lines (99 loc) · 3.25 KB
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#pragma once
#include "vmprof.h"
#include "machine.h"
#include "compat.h"
#include <stddef.h>
#include <time.h>
#include <stdlib.h>
#ifdef VMPROF_UNIX
#include <sys/time.h>
#include "vmprof_mt.h"
#include <signal.h>
#include <pthread.h>
#endif
#ifdef VMPROF_UNIX
#include "vmprof_getpc.h"
#endif
#ifdef VMPROF_LINUX
#include <syscall.h>
#endif
#ifdef VMPROF_BSD
#include <sys/syscall.h>
#endif
#define MAX_FUNC_NAME 1024
#ifdef VMPROF_UNIX
ssize_t search_thread(pthread_t tid, ssize_t i);
/* native_id: the kernel thread id (gettid) of 'tid' on linux, 0 if unknown
or on other platforms */
ssize_t insert_thread(pthread_t tid, long native_id, ssize_t i);
ssize_t remove_thread(pthread_t tid, ssize_t i);
ssize_t remove_threads(void);
/* the kernel thread id of the calling thread on linux, 0 elsewhere */
long vmp_native_thread_id(void);
#endif
#define MAX_STACK_DEPTH \
((SINGLE_BUF_SIZE - sizeof(struct prof_stacktrace_s)) / sizeof(void *))
/* Slots at the end of a stack sample that are not stack entries: the thread
id, the (optional) rss and the 64-bit sample timestamp. Walk at most
MAX_STACK_DEPTH - STACK_TRAILER_SLOTS frames so that they always fit. */
#define STACK_TRAILER_SLOTS \
(2 + (sizeof(int64_t) + sizeof(void *) - 1) / sizeof(void *))
/*
* NOTE SHOULD NOT BE DONE THIS WAY. Here is an example why:
* assume the following struct content:
* struct ... {
* char padding[sizeof(long) - 1];
* char marker;
* long count, depth;
* void *stack[];
* }
*
* Here a table of the offsets on a 64 bit machine:
* field | GCC | VSC (windows)
* ---------------------------
* marker | 7 | 3
* count | 8 | 4
* depth | 16 | 8
* stack | 24 | 16 (VSC adds 4 padding byte hurray!)
*
* This means that win32 worked by chance (because sizeof(void*)
* is 4, but fails on win32
*/
typedef struct prof_stacktrace_s {
#ifdef VMPROF_WINDOWS
// if padding is 8 bytes, then on both 32bit and 64bit, the
// stack field is aligned
char padding[sizeof(void*) - 1];
#else
char padding[sizeof(long) - 1];
#endif
char marker;
long count, depth;
void *stack[];
/* the file record continues after stack[depth] with the thread id,
the rss if memory profiling is on, and an int64_t timestamp
(VERSION_SAMPLE_TIME, see vmp_sample_time_ns) */
} prof_stacktrace_s;
#define SIZEOF_PROF_STACKTRACE sizeof(long)+sizeof(long)+sizeof(char)
RPY_EXTERN
char *vmprof_init(int fd, double interval, int memory,
int proflines, const char *interp_name, int native, int real_time);
int opened_profile(const char *interp_name, int memory, int proflines, int native, int real_time);
#ifdef RPYTHON_VMPROF
PY_STACK_FRAME_T *get_vmprof_stack(void);
RPY_EXTERN
intptr_t vmprof_get_traceback(void *stack, void *ucontext,
void **result_p, intptr_t result_length);
#endif
int vmprof_get_signal_type(void);
long vmprof_get_prepare_interval_usec(void);
long vmprof_get_profile_interval_usec(void);
void vmprof_set_prepare_interval_usec(long value);
void vmprof_set_profile_interval_usec(long value);
int vmprof_is_enabled(void);
void vmprof_set_enabled(int value);
int vmprof_get_itimer_type(void);
#ifdef VMPROF_UNIX
int broadcast_signal_for_threads(void);
int is_main_thread(void);
#endif