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(TRAP_REMOVE_SYSCALL_FLAG): New macro. 

(linux_nat_wait_1): Mask off is-syscall bit in wait status for
	TRAP_IS_SYSCALL before passing value to caller.
This commit is contained in:
Doug Evans 2009-09-28 21:09:15 +00:00
parent 206aa7673d
commit 66d990c749
2 changed files with 10 additions and 0 deletions
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3
gdb/ChangeLog
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@ -1,6 +1,9 @@
2009-09-28 Doug Evans <dje@google.com>
* linux-nat.c (status_to_str): Handle TRAP_IS_SYSCALL.
(TRAP_REMOVE_SYSCALL_FLAG): New macro.
(linux_nat_wait_1): Mask off is-syscall bit in wait status for
TRAP_IS_SYSCALL before passing value to caller.
2009-09-28 Ulrich Weigand <uweigand@de.ibm.com>

7
gdb/linux-nat.c
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@ -70,6 +70,7 @@
/* To be used when one needs to know wether a
WSTOPSIG (status) is a syscall */
#define TRAP_IS_SYSCALL (SIGTRAP | 0x80)
#define TRAP_REMOVE_SYSCALL_FLAG(status) ((status) & ~(0x80 << 8))
/* This comment documents high-level logic of this file.
@ -3012,6 +3013,12 @@ retry:
lp = linux_nat_filter_event (lwpid, status, options);
/* If this was a syscall trap, we no longer need or want
the 0x80 flag, remove it. */
if (WIFSTOPPED (status)
&& WSTOPSIG (status) == TRAP_IS_SYSCALL)
status = TRAP_REMOVE_SYSCALL_FLAG (status);
if (lp
&& ptid_is_pid (ptid)
&& ptid_get_pid (lp->ptid) != ptid_get_pid (ptid))