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Fix Python gdb.Breakpoint.location crash

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I noticed today that gdb.Breakpoint.location will crash when applied
to a catchpoint made with "catch throw".

The bug is that "catch throw" makes a breakpoint that is of type
bp_breakpoint, but which does not have a location.

Regression tested on x86-64 Fedora 28.

gdb/ChangeLog
2018-10-06  Tom Tromey  <tom@tromey.com>

	* python/py-breakpoint.c (bppy_get_location): Handle a
	bp_breakpoint without a location.

gdb/testsuite/ChangeLog
2018-10-06  Tom Tromey  <tom@tromey.com>

	* gdb.python/py-breakpoint.exp (check_last_event): Check location
	of a "throw" catchpoint.
This commit is contained in:
Tom Tromey 2018-09-18 06:27:09 -06:00
parent 2fb009bbd1
commit 2a8be20359
4 changed files with 21 additions and 1 deletions
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5
gdb/testsuite/gdb.python/py-breakpoint.exp
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@ -616,6 +616,11 @@ proc_with_prefix test_bkpt_explicit_loc {} {
gdb_test "python bp1 = gdb.Breakpoint (function=\"blah\")" \
"Function \"blah\" not defined.*" \
"set invalid explicit breakpoint by missing function"
delete_breakpoints
gdb_test "catch throw" "Catchpoint .* \\(throw\\)"
gdb_test "python print (gdb.breakpoints()\[0\].location)" None \
"Examine location of catchpoint"
}
proc_with_prefix test_bkpt_qualified {} {