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| author | Gary Benson <gbenson@redhat.com> | 2015-03-24 14:05:43 +0000 |
|---|---|---|
| committer | Gary Benson <gbenson@redhat.com> | 2015-03-24 14:05:43 +0000 |
| commit | 6d4ee8c6ad7d5b04e524b2b48ffe5639028594a5 (patch) | |
| tree | 796ae04a4d944777a1aa9bcde44ec114b58f11af /gdb/nat | |
| parent | 70a0bb6b590bcfe304fe082d421feb52e0a0d4dc (diff) | |
| download | gdb-6d4ee8c6ad7d5b04e524b2b48ffe5639028594a5.zip gdb-6d4ee8c6ad7d5b04e524b2b48ffe5639028594a5.tar.gz gdb-6d4ee8c6ad7d5b04e524b2b48ffe5639028594a5.tar.bz2 | |
Add iterate_over_lwps to gdbserver
This commit introduces a new function, iterate_over_lwps, that
shared Linux code can use to call a function for each LWP that
matches certain criteria. This function already existed in GDB
and was in use by GDB's various low-level Linux x86 debug register
setters. An equivalent was written for gdbserver and gdbserver's
low-level Linux x86 debug register setters were modified to use
it.
gdb/ChangeLog:
* linux-nat.h: Include nat/linux-nat.h.
(iterate_over_lwps): Move declaration to nat/linux-nat.h.
* nat/linux-nat.h (struct lwp_info): New forward declaration.
(iterate_over_lwps_ftype): New typedef.
(iterate_over_lwps): New declaration.
* linux-nat.h (iterate_over_lwps): Update comment. Use
iterate_over_lwps_ftype. Update callback return value check.
gdb/gdbserver/ChangeLog:
* linux-low.h: Include nat/linux-nat.h.
* linux-low.c (iterate_over_lwps_args): New structure.
(iterate_over_lwps_filter): New function.
(iterate_over_lwps): Likewise.
* linux-x86-low.c (update_debug_registers_callback):
Update signature to what iterate_over_lwps expects.
Remove PID check that iterate_over_lwps now performs.
(x86_dr_low_set_addr): Use iterate_over_lwps.
(x86_dr_low_set_control): Likewise.
Diffstat (limited to 'gdb/nat')
| -rw-r--r-- | gdb/nat/linux-nat.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/gdb/nat/linux-nat.h b/gdb/nat/linux-nat.h index c06f72d..c534944 100644 --- a/gdb/nat/linux-nat.h +++ b/gdb/nat/linux-nat.h @@ -20,6 +20,8 @@ #ifndef LINUX_NAT_H #define LINUX_NAT_H +struct lwp_info; + /* Unlike other extended result codes, WSTOPSIG (status) on PTRACE_O_TRACESYSGOOD syscall events doesn't return SIGTRAP, but instead SIGTRAP with bit 7 set. */ @@ -32,4 +34,17 @@ extern ptid_t current_lwp_ptid (void); +/* Function type for the CALLBACK argument of iterate_over_lwps. */ +typedef int (iterate_over_lwps_ftype) (struct lwp_info *lwp, void *arg); + +/* Iterate over all LWPs. Calls CALLBACK with its second argument set + to DATA for every LWP in the list. If CALLBACK returns nonzero for + a particular LWP, return a pointer to the structure describing that + LWP immediately. Otherwise return NULL. This function must be + provided by the client. */ + +extern struct lwp_info *iterate_over_lwps (ptid_t filter, + iterate_over_lwps_ftype callback, + void *data); + #endif /* LINUX_NAT_H */ |