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?;dyninst	[ DIR ]	drwxr-xr-x
?;linux	[ DIR ]	drwxr-xr-x
?;transport	[ DIR ]	drwxr-xr-x
?;unwind	[ DIR ]	drwxr-xr-x
addr-map.c	523 B	-rw-r--r--
addr-map.h	723 B	-rw-r--r--
alloc.c	498 B	-rw-r--r--
arith.c	483 B	-rw-r--r--
common_probe_context.h	6.08 KB	-rw-r--r--
common_session_state.h	415 B	-rw-r--r--
compatdefs.h	3.02 KB	-rw-r--r--
copy.c	585 B	-rw-r--r--
debug.h	485 B	-rw-r--r--
io.c	508 B	-rw-r--r--
k_syms.h	182 B	-rw-r--r--
loc2c-runtime.h	8.96 KB	-rw-r--r--
map-gen.c	25.29 KB	-rw-r--r--
map-stat.c	3.38 KB	-rw-r--r--
map.c	14.1 KB	-rw-r--r--
map.h	5.78 KB	-rw-r--r--
mempool.c	2.58 KB	-rw-r--r--
namespaces.h	487 B	-rw-r--r--
pmap-gen.c	8.17 KB	-rw-r--r--
print.c	486 B	-rw-r--r--
print.h	680 B	-rw-r--r--
print_flush.c	4.29 KB	-rw-r--r--
probe_lock.h	498 B	-rw-r--r--
proc_fs_compatibility.h	2.22 KB	-rw-r--r--
procfs-probes.c	4.21 KB	-rw-r--r--
procfs-probes.h	674 B	-rw-r--r--
procfs.c	7.3 KB	-rw-r--r--
ptrace_compatibility.h	1.48 KB	-rw-r--r--
regs.c	4.18 KB	-rw-r--r--
regs.h	2.12 KB	-rw-r--r--
runtime.h	928 B	-rw-r--r--
runtime_context.h	669 B	-rw-r--r--
runtime_defines.h	3.5 KB	-rw-r--r--
stack-arm.c	1.65 KB	-rw-r--r--
stack-ia64.c	1.06 KB	-rw-r--r--
stack-mips.c	125 B	-rw-r--r--
stack-s390.c	2.25 KB	-rw-r--r--
stack.c	18.79 KB	-rw-r--r--
stat-common.c	8.29 KB	-rw-r--r--
stat.c	7.25 KB	-rw-r--r--
stat.h	1.92 KB	-rw-r--r--
stp_helper_lock.h	2.98 KB	-rw-r--r--
stp_string.c	8.15 KB	-rw-r--r--
stp_string.h	598 B	-rw-r--r--
stp_task_work.c	2.75 KB	-rw-r--r--
stp_utrace.c	94.13 KB	-rw-r--r--
stp_utrace.h	13.68 KB	-rw-r--r--
sym.c	34.44 KB	-rw-r--r--
sym.h	5.83 KB	-rw-r--r--
syscall.h	15.61 KB	-rw-r--r--
task_finder_vma.c	12.81 KB	-rw-r--r--
time.c	13.31 KB	-rw-r--r--
timer.c	481 B	-rw-r--r--
timer.h	482 B	-rw-r--r--
uidgid_compatibility.h	603 B	-rw-r--r--
unwind.c	46.51 KB	-rw-r--r--
utrace_compatibility.h	3.07 KB	-rw-r--r--
vma.c	8.83 KB	-rw-r--r--
vsprintf.c	22.98 KB	-rw-r--r--
vsprintf.h	1.47 KB	-rw-r--r--

Code Editor : compatdefs.h

/* Compatibility definitions for older kernels.
 * Copyright (C) 2010 Red Hat Inc.
 *
 * This file is part of systemtap, and is free software.  You can
 * redistribute it and/or modify it under the terms of the GNU General
 * Public License (GPL); either version 2, or (at your option) any
 * later version.
 */

#ifndef _STP_COMPAT_H_ /* -*- linux-c -*- */
#define _STP_COMPAT_H_

#ifdef CONFIG_COMPAT

/* x86_64 has a different flag name from all other arches and s390... */
#include <linux/thread_info.h>
#if defined (__x86_64__)
  #define TIF_32BIT TIF_IA32
#endif
#if defined(__s390__) || defined(__s390x__)
  #define TIF_32BIT TIF_31BIT
#endif
#if defined (__mips__) && !defined(TIF_32BIT)
  #ifdef CONFIG_MIPS32_O32
    #define TIF_32BIT TIF_32BIT_REGS
  #elif defined(CONFIG_MIPS32_N32)
    #define TIF_32BIT TIF_32BIT_ADDR
  #endif
#endif

#if !defined(TIF_32BIT)
#error architecture not supported, no TIF_32BIT flag
#endif

/* _stp_is_compat_task - returns true if this is a 32-on-64 bit user task.
   Note that some kernels/architectures define a function called
   is_compat_task(), but that just tests for being inside a 32bit compat
   syscall. We want to test whether the current task is a 32 bit compat
   task itself.*/
static inline int _stp_is_compat_task(void)
{
  return test_thread_flag(TIF_32BIT);
}

#else

static inline int _stp_is_compat_task(void)
{
  return 0;
}

#endif /* CONFIG_COMPAT */

/* task_pt_regs is used in some core tapset functions, so try to make
 * sure something sensible is defined. task_pt_regs is required for
 * the tracehook interface api so is normally defined already.
 */
#include <asm/processor.h>
#include <asm/ptrace.h>
#include <linux/sched.h>
#if defined(STAPCONF_LINUX_SCHED_HEADERS)
#include <linux/sched/task_stack.h>
#endif

#if !defined(task_pt_regs)
#if defined(__powerpc__)
#define task_pt_regs(tsk)       ((struct pt_regs *)(tsk)->thread.regs)
#endif
#if defined(__x86_64__)
#define task_pt_regs(tsk)	((struct pt_regs *)(tsk)->thread.rsp0 - 1)
#endif
#if defined(__ia64__)
/* pre-commit 6450578f32 */
#define task_pt_regs(tsk)	ia64_task_regs(tsk)
#endif
#endif

/* Always use _stp_current_pt_regs() in tapset/runtime code to make sure
   the returned user pt_regs are sane. */
#define _stp_current_pt_regs()	(current->mm ? task_pt_regs(current) : NULL)

/* Whether all user registers are valid. If not the pt_regs needs,
 * architecture specific, scrubbing before usage (in the unwinder).
 * XXX Currently very simple heuristics, just check arch. Should
 * user task and user pt_regs state.
 *
 * See arch specific "scrubbing" code in runtime/unwind/<arch>.h
 */
static inline int _stp_task_pt_regs_valid(struct task_struct *task,
					  struct pt_regs *uregs)
{
/* It would be nice to just use syscall_get_nr(task, uregs) < 0
 * but that might trigger false negatives or false positives
 * (bad syscall numbers or syscall tracing being in effect).
 */
#if defined(__i386__)
  return 1; /* i386 has so little registers, all are saved. */
#elif defined(__x86_64__)
  return 0;
#endif
  return 0;
}

#endif /* _STP_COMPAT_H_ */

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Code Editor : compatdefs.h