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Merge latest DTrace changes from Perforce.

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Update libproc API to reflect new changes.

Approved by:	jb
This commit is contained in:
Craig Rodrigues 2008-11-05 19:35:43 +00:00
parent 56b3556343
commit 820e067933
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=184697
2 changed files with 10 additions and 3 deletions
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5
lib/libproc/libproc.h
View File

@ -33,6 +33,8 @@
struct proc_handle;
typedef void (*proc_child_func)(void *);
/* Values returned by proc_state(). */
#define PS_IDLE 1
#define PS_STOP 2
@ -55,7 +57,8 @@ int proc_addr2sym(struct proc_handle *, uintptr_t, char *, size_t, GElf_Sym *);
int proc_attach(pid_t pid, int flags, struct proc_handle **pphdl);
int proc_continue(struct proc_handle *);
int proc_clearflags(struct proc_handle *, int);
int proc_create(const char *, char * const *, struct proc_handle **);
int proc_create(const char *, char * const *, proc_child_func *, void *,
struct proc_handle **);
int proc_detach(struct proc_handle *);
int proc_getflags(struct proc_handle *);
int proc_name2sym(struct proc_handle *, const char *, const char *, GElf_Sym *);

8
lib/libproc/proc_create.c
View File

@ -90,7 +90,8 @@ proc_attach(pid_t pid, int flags, struct proc_handle **pphdl)
}
int
proc_create(const char *file, char * const *argv, struct proc_handle **pphdl)
proc_create(const char *file, char * const *argv, proc_child_func *pcf,
void *child_arg, struct proc_handle **pphdl)
{
struct proc_handle *phdl;
struct kevent kev;
@ -106,13 +107,16 @@ proc_create(const char *file, char * const *argv, struct proc_handle **pphdl)
return (ENOMEM);
/* Fork a new process. */
if ((pid = fork()) == -1)
if ((pid = vfork()) == -1)
error = errno;
else if (pid == 0) {
/* The child expects to be traced. */
if (ptrace(PT_TRACE_ME, 0, 0, 0) != 0)
_exit(1);
if (pcf != NULL)
(*pcf)(child_arg);
/* Execute the specified file: */
execvp(file, argv);