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Add a comment about setbpt. No code changes.

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* defs.h: Add a comment about setbpt().

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
This commit is contained in:
Denys Vlasenko 2011-06-23 22:05:50 +02:00
parent c133bf0eb2
commit 91ecfac9b6
1 changed files with 6 additions and 0 deletions
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6
defs.h
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@ -566,6 +566,12 @@ extern void print_sock_optmgmt(struct tcb *, long, int);
extern void printrusage(struct tcb *, long); extern void printrusage(struct tcb *, long);
extern void printuid(const char *, unsigned long); extern void printuid(const char *, unsigned long);
extern int clearbpt(struct tcb *); extern int clearbpt(struct tcb *);
/*
* On Linux, "setbpt" is a misnomer: we don't set a breakpoint
* (IOW: no poking in user's text segment),
* instead we change fork/vfork/clone into clone(CLONE_PTRACE).
* On newer kernels, we use PTRACE_O_TRACECLONE/TRACE[V]FORK instead.
*/
extern int setbpt(struct tcb *); extern int setbpt(struct tcb *);
extern int sigishandled(struct tcb *, int); extern int sigishandled(struct tcb *, int);
extern void printcall(struct tcb *); extern void printcall(struct tcb *);