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author | kib <kib@FreeBSD.org> | 2016-09-01 07:23:47 +0000 |
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committer | kib <kib@FreeBSD.org> | 2016-09-01 07:23:47 +0000 |
commit | 12a1c9434d6e284a4bf07e498e91f4ae601ce172 (patch) | |
tree | 6238aef46e3a98d2a53c0e54b57042704df28b36 /lib/libc/sys | |
parent | 3f022705afd922bf7ba19549229f6a213f900fc8 (diff) | |
download | FreeBSD-src-12a1c9434d6e284a4bf07e498e91f4ae601ce172.zip FreeBSD-src-12a1c9434d6e284a4bf07e498e91f4ae601ce172.tar.gz |
MFC r305024:
Typesetting fixes.
Diffstat (limited to 'lib/libc/sys')
-rw-r--r-- | lib/libc/sys/ptrace.2 | 82 |
1 files changed, 41 insertions, 41 deletions
diff --git a/lib/libc/sys/ptrace.2 b/lib/libc/sys/ptrace.2 index 0e8c8bd..eae19cd 100644 --- a/lib/libc/sys/ptrace.2 +++ b/lib/libc/sys/ptrace.2 @@ -104,7 +104,7 @@ Each traced process has a tracing event mask. An event in the traced process only reports a signal stop if the corresponding flag is set in the tracing event mask. The current set of tracing event flags include: -.Bl -tag -width ".Dv PTRACE_SYSCALL" +.Bl -tag -width "Dv PTRACE_SYSCALL" .It Dv PTRACE_EXEC Report a stop for a successful invocation of .Xr execve 2 . @@ -231,7 +231,7 @@ The .Fa request argument can be: -.Bl -tag -width 12n +.Bl -tag -width "Dv PT_GET_EVENT_MASK" .It Dv PT_TRACE_ME This request is the only one used by the traced process; it declares that the process expects to be traced by its parent. @@ -469,31 +469,31 @@ The fields in the .Vt "struct ptrace_lwpinfo" have the following meaning: .Bl -tag -width indent -compact -.It pl_lwpid +.It Va pl_lwpid LWP id of the thread -.It pl_event +.It Va pl_event Event that caused the stop. -Currently defined events are -.Bl -tag -width indent -compact -.It PL_EVENT_NONE +Currently defined events are: +.Bl -tag -width "Dv PL_EVENT_SIGNAL" -compact +.It Dv PL_EVENT_NONE No reason given -.It PL_EVENT_SIGNAL +.It Dv PL_EVENT_SIGNAL Thread stopped due to the pending signal .El -.It pl_flags +.It Va pl_flags Flags that specify additional details about observed stop. Currently defined flags are: .Bl -tag -width indent -compact -.It PL_FLAG_SCE +.It Dv PL_FLAG_SCE The thread stopped due to system call entry, right after the kernel is entered. The debugger may examine syscall arguments that are stored in memory and registers according to the ABI of the current process, and modify them, if needed. -.It PL_FLAG_SCX +.It Dv PL_FLAG_SCX The thread is stopped immediately before syscall is returning to the usermode. The debugger may examine system call return values in the ABI-defined registers and/or memory. -.It PL_FLAG_EXEC +.It Dv PL_FLAG_EXEC When .Dv PL_FLAG_SCX is set, this flag may be additionally specified to inform that the @@ -501,13 +501,13 @@ program being executed by debuggee process has been changed by successful execution of a system call from the .Fn execve 2 family. -.It PL_FLAG_SI +.It Dv PL_FLAG_SI Indicates that .Va pl_siginfo member of .Vt "struct ptrace_lwpinfo" contains valid information. -.It PL_FLAG_FORKED +.It Dv PL_FLAG_FORKED Indicates that the process is returning from a call to .Fn fork 2 that created a new child process. @@ -515,42 +515,42 @@ The process identifier of the new process is available in the .Va pl_child_pid member of .Vt "struct ptrace_lwpinfo" . -.It PL_FLAG_CHILD +.It Dv PL_FLAG_CHILD The flag is set for first event reported from a new child which is automatically attached when .Dv PTRACE_FORK is enabled. -.It PL_FLAG_BORN +.It Dv PL_FLAG_BORN This flag is set for the first event reported from a new LWP when .Dv PTRACE_LWP is enabled. It is reported along with .Dv PL_FLAG_SCX . -.It PL_FLAG_EXITED +.It Dv PL_FLAG_EXITED This flag is set for the last event reported by an exiting LWP when .Dv PTRACE_LWP is enabled. Note that this event is not reported when the last LWP in a process exits. The termination of the last thread is reported via a normal process exit event. -.It PL_FLAG_VFORKED +.It Dv PL_FLAG_VFORKED Indicates that the thread is returning from a call to .Xr vfork 2 that created a new child process. This flag is set in addition to .Dv PL_FLAG_FORKED . -.It PL_FLAG_VFORK_DONE +.It Dv PL_FLAG_VFORK_DONE Indicates that the thread has resumed after a child process created via .Xr vfork 2 has stopped sharing its address space with the traced process. .El -.It pl_sigmask +.It Va pl_sigmask The current signal mask of the LWP -.It pl_siglist +.It Va pl_siglist The current pending set of signals for the LWP. Note that signals that are delivered to the process would not appear on an LWP siglist until the thread is selected for delivery. -.It pl_siginfo +.It Va pl_siginfo The siginfo that accompanies the signal pending. Only valid for .Dv PL_EVENT_SIGNAL @@ -558,9 +558,9 @@ stop when .Dv PL_FLAG_SI is set in .Va pl_flags . -.It pl_tdname +.It Va pl_tdname The name of the thread. -.It pl_child_pid +.It Va pl_child_pid The process identifier of the new child process. Only valid for a .Dv PL_EVENT_SIGNAL @@ -568,7 +568,7 @@ stop when .Dv PL_FLAG_FORKED is set in .Va pl_flags . -.It pl_syscall_code +.It Va pl_syscall_code The ABI-specific identifier of the current system call. Note that for indirect system calls this field reports the indirected system call. @@ -578,7 +578,7 @@ or .Dv PL_FLAG_SCX is set in .Va pl_flags. -.It pl_syscall_narg +.It Va pl_syscall_narg The number of arguments passed to the current system call not counting the system call identifier. Note that for indirect system calls this field reports the arguments @@ -590,10 +590,10 @@ or is set in .Va pl_flags. .El -.It PT_GETNUMLWPS +.It Dv PT_GETNUMLWPS This request returns the number of kernel threads associated with the traced process. -.It PT_GETLWPLIST +.It Dv PT_GETLWPLIST This request can be used to get the current thread list. A pointer to an array of type .Vt lwpid_t @@ -604,15 +604,15 @@ with the array size specified by The return value from .Fn ptrace is the count of array entries filled in. -.It PT_SETSTEP +.It Dv PT_SETSTEP This request will turn on single stepping of the specified process. -.It PT_CLEARSTEP +.It Dv PT_CLEARSTEP This request will turn off single stepping of the specified process. -.It PT_SUSPEND +.It Dv PT_SUSPEND This request will suspend the specified thread. -.It PT_RESUME +.It Dv PT_RESUME This request will resume the specified thread. -.It PT_TO_SCE +.It Dv PT_TO_SCE This request will set the .Dv PTRACE_SCE event flag to trace all future system call entries and continue the process. @@ -622,7 +622,7 @@ and .Fa data arguments are used the same as for .Dv PT_CONTINUE. -.It PT_TO_SCX +.It Dv PT_TO_SCX This request will set the .Dv PTRACE_SCX event flag to trace all future system call exits and continue the process. @@ -632,7 +632,7 @@ and .Fa data arguments are used the same as for .Dv PT_CONTINUE. -.It PT_SYSCALL +.It Dv PT_SYSCALL This request will set the .Dv PTRACE_SYSCALL event flag to trace all future system call entries and exits and continue @@ -643,7 +643,7 @@ and .Fa data arguments are used the same as for .Dv PT_CONTINUE. -.It PT_FOLLOW_FORK +.It Dv PT_FOLLOW_FORK This request controls tracing for new child processes of a traced process. If .Fa data @@ -655,7 +655,7 @@ If is zero, .Dv PTRACE_FORK is cleared from the traced process's event tracing mask. -.It PT_LWP_EVENTS +.It Dv PT_LWP_EVENTS This request controls tracing of LWP creation and destruction. If .Fa data @@ -667,25 +667,25 @@ If is zero, .Dv PTRACE_LWP is cleared from the traced process's event tracing mask. -.It PT_GET_EVENT_MASK +.It Dv PT_GET_EVENT_MASK This request reads the traced process's event tracing mask into the integer pointed to by .Fa addr . The size of the integer must be passed in .Fa data . -.It PT_SET_EVENT_MASK +.It Dv PT_SET_EVENT_MASK This request sets the traced process's event tracing mask from the integer pointed to by .Fa addr . The size of the integer must be passed in .Fa data . -.It PT_VM_TIMESTAMP +.It Dv PT_VM_TIMESTAMP This request returns the generation number or timestamp of the memory map of the traced process as the return value from .Fn ptrace . This provides a low-cost way for the tracing process to determine if the VM map changed since the last time this request was made. -.It PT_VM_ENTRY +.It Dv PT_VM_ENTRY This request is used to iterate over the entries of the VM map of the traced process. The |