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authorTom Tromey <tom@tromey.com>2017-08-15 23:36:09 -0600
committerTom Tromey <tom@tromey.com>2017-08-18 11:06:26 -0600
commit2989a3651d3f6ad8c7cffb225f77f4fca8868890 (patch)
tree8eefedd30fba1827d138d783ab7e621b838d0994 /gdb/spu-multiarch.c
parente60eb2880368b4e4752577c626ab0dadf0499cb5 (diff)
Remove save_inferior_ptid
This removes save_inferior_ptid, a cleanup function, in favor of scoped_restore. This also fixes a possible (it seems unlikely that it could happen in practice) memory leak -- save_inferior_ptid should have used make_cleanup_dtor, because it allocated memory. I tested this on the buildbot. However, there are two caveats to this. First, sometimes it seems I misread the results. Second, I think this patch touches some platforms that can't be tested by the buildbot. So, extra care seems warranted. ChangeLog 2017-08-18 Tom Tromey <tom@tromey.com> Pedro Alves <palves@redhat.com> * spu-multiarch.c (parse_spufs_run): Use scoped_restore. * sol-thread.c (sol_thread_resume, sol_thread_wait) (sol_thread_xfer_partial, rw_common): Use scoped_restore. * procfs.c (procfs_do_thread_registers): Use scoped_restore. * proc-service.c (ps_xfer_memory): Use scoped_restore. * linux-tdep.c (linux_corefile_thread): Remove a cleanup. (linux_get_siginfo_data): Add "thread" argument. Use scoped_restore. * linux-nat.c (linux_child_follow_fork) (check_stopped_by_watchpoint): Use scoped_restore. * infrun.c (displaced_step_prepare_throw, write_memory_ptid) (THREAD_STOPPED_BY, handle_signal_stop): Use scoped_restore. (restore_inferior_ptid, save_inferior_ptid): Remove. * btrace.c (btrace_fetch): Use scoped_restore. * bsd-uthread.c (bsd_uthread_fetch_registers) (bsd_uthread_store_registers): Use scoped_restore. * breakpoint.c (reattach_breakpoints, detach_breakpoints): Use scoped_restore. * aix-thread.c (aix_thread_resume, aix_thread_wait) (aix_thread_xfer_partial): Use scoped_restore. * inferior.h (save_inferior_ptid): Remove.
Diffstat (limited to 'gdb/spu-multiarch.c')
-rw-r--r--gdb/spu-multiarch.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/gdb/spu-multiarch.c b/gdb/spu-multiarch.c
index 3da502cea5..7682ca2980 100644
--- a/gdb/spu-multiarch.c
+++ b/gdb/spu-multiarch.c
@@ -76,10 +76,11 @@ parse_spufs_run (ptid_t ptid, int *fd, CORE_ADDR *addr)
tdep = gdbarch_tdep (target_gdbarch ());
/* Fetch instruction preceding current NIP. */
- old_chain = save_inferior_ptid ();
- inferior_ptid = ptid;
- regval = target_read_memory (regcache_read_pc (regcache) - 4, buf, 4);
- do_cleanups (old_chain);
+ {
+ scoped_restore save_inferior_ptid = make_scoped_restore (&inferior_ptid);
+ inferior_ptid = ptid;
+ regval = target_read_memory (regcache_read_pc (regcache) - 4, buf, 4);
+ }
if (regval != 0)
return 0;
/* It should be a "sc" instruction. */