diff options
Diffstat (limited to 'sys/kern/imgact_elf.c')
| -rw-r--r-- | sys/kern/imgact_elf.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/sys/kern/imgact_elf.c b/sys/kern/imgact_elf.c index 3a7460b..6a5ba55 100644 --- a/sys/kern/imgact_elf.c +++ b/sys/kern/imgact_elf.c @@ -1,4 +1,5 @@ /*- + * Copyright (c) 2017 Dell EMC * Copyright (c) 2000 David O'Brien * Copyright (c) 1995-1996 Søren Schmidt * Copyright (c) 1996 Peter Wemm @@ -52,6 +53,7 @@ __FBSDID("$FreeBSD$"); #include <sys/pioctl.h> #include <sys/proc.h> #include <sys/procfs.h> +#include <sys/ptrace.h> #include <sys/racct.h> #include <sys/resourcevar.h> #include <sys/rwlock.h> @@ -1205,6 +1207,7 @@ static void __elfN(note_prpsinfo)(void *, struct sbuf *, size_t *); static void __elfN(note_prstatus)(void *, struct sbuf *, size_t *); static void __elfN(note_threadmd)(void *, struct sbuf *, size_t *); static void __elfN(note_thrmisc)(void *, struct sbuf *, size_t *); +static void __elfN(note_ptlwpinfo)(void *, struct sbuf *, size_t *); static void __elfN(note_procstat_auxv)(void *, struct sbuf *, size_t *); static void __elfN(note_procstat_proc)(void *, struct sbuf *, size_t *); static void __elfN(note_procstat_psstrings)(void *, struct sbuf *, size_t *); @@ -1634,6 +1637,8 @@ __elfN(prepare_notes)(struct thread *td, struct note_info_list *list, __elfN(note_fpregset), thr); size += register_note(list, NT_THRMISC, __elfN(note_thrmisc), thr); + size += register_note(list, NT_PTLWPINFO, + __elfN(note_ptlwpinfo), thr); size += register_note(list, -1, __elfN(note_threadmd), thr); @@ -1995,6 +2000,37 @@ __elfN(note_thrmisc)(void *arg, struct sbuf *sb, size_t *sizep) *sizep = sizeof(thrmisc); } +static void +__elfN(note_ptlwpinfo)(void *arg, struct sbuf *sb, size_t *sizep) +{ + struct thread *td; + size_t size; + int structsize; + struct ptrace_lwpinfo pl; + + td = (struct thread *)arg; + size = sizeof(structsize) + sizeof(struct ptrace_lwpinfo); + if (sb != NULL) { + KASSERT(*sizep == size, ("invalid size")); + structsize = sizeof(struct ptrace_lwpinfo); + sbuf_bcat(sb, &structsize, sizeof(structsize)); + bzero(&pl, sizeof(pl)); + pl.pl_lwpid = td->td_tid; + pl.pl_event = PL_EVENT_NONE; + pl.pl_sigmask = td->td_sigmask; + pl.pl_siglist = td->td_siglist; + if (td->td_si.si_signo != 0) { + pl.pl_event = PL_EVENT_SIGNAL; + pl.pl_flags |= PL_FLAG_SI; + pl.pl_siginfo = td->td_si; + } + strcpy(pl.pl_tdname, td->td_name); + /* XXX TODO: supply more information in struct ptrace_lwpinfo*/ + sbuf_bcat(sb, &pl, sizeof(struct ptrace_lwpinfo)); + } + *sizep = size; +} + /* * Allow for MD specific notes, as well as any MD * specific preparations for writing MI notes. |
