427cd150ee
This fixes PR cli/15603. The bug here is that when a software watchpoint is being used, gdb will stop responding to C-c. This is a regression caused by the "catch signal" patch. The problem is that software watchpoints always end up on the bpstat list. However, this makes bpstat_explains_signal return BPSTAT_SIGNAL_HIDE, causing infrun to think that the signal is not a "random signal". The fix is to change bpstat_explains_signal to handle this better. I chose to do it in a "clean API" way, by passing the signal value to bpstat_explains_signal and then adding an explains_signal method for watchpoints, which handles the specifics. Built and regtested on x86-64 Fedora 18. New test case included. * break-catch-sig.c (signal_catchpoint_explains_signal): Add 'sig' argument. * breakpoint.c (bpstat_explains_signal): Add 'sig' argument. Special case signals other than GDB_SIGNAL_TRAP. (explains_signal_watchpoint): New function. (base_breakpoint_explains_signal): Add 'sig' argument. (initialize_breakpoint_ops): Set 'explains_signal' method for watchpoints. * breakpoint.h (struct breakpoint_ops) <explains_signal>: Add signal argument. (bpstat_explains_signal): Likewise. * infrun.c (handle_syscall_event, handle_inferior_event): Update. * gdb.base/random-signal.c: New file. * gdb.base/random-signal.exp: New file.
29 lines
871 B
C
29 lines
871 B
C
/* This testcase is part of GDB, the GNU debugger.
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Copyright 2013 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include <unistd.h>
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int v;
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int main()
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{
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/* Don't let the test case run forever. */
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alarm (60);
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for (;;)
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;
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}
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