1d6edc3c37
Fix empty DWARF expressions DATA vs. SIZE conditionals. * dwarf2loc.c (dwarf2_find_location_expression): Clear *LOCEXPR_LENGTH. (dwarf_expr_frame_base_1): Indicate unavailability via zero *LENGTH. (locexpr_tracepoint_var_ref): Check only zero SIZE, not zero DATA. (loclist_read_variable, loclist_tracepoint_var_ref): Do not check for zero DATA. * dwarf2loc.h (struct dwarf2_locexpr_baton): Comment DATA vs. SIZE validity. * dwarf2read.c (struct dwarf_block): Comment DATA validity. (dwarf2_fetch_die_location_block, dwarf2_symbol_mark_computed): Do not clear DATA on zero SIZE. gdb/testsuite/ Fix empty DWARF expressions DATA vs. SIZE conditionals. * gdb.dwarf2/dw2-op-call.S (arraycallnoloc, arraynoloc): New DIEs. (loclist): New. (4): New abbrev. * gdb.dwarf2/dw2-op-call.exp: Remove variable srcfile and executable. Use prepare_for_testing, remove clean_restart. (p arraynoloc, p arraycallnoloc): New tests.
41 lines
1.4 KiB
Text
41 lines
1.4 KiB
Text
# Copyright 2009, 2011 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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#
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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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#
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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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load_lib dwarf.exp
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# Test DW_OP_call2 and DW_OP_call4, PR gdb/10640.
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# This test can only be run on targets which support DWARF-2 and use gas.
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if {![dwarf2_support]} {
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return 0
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}
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set testfile "dw2-op-call"
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if { [prepare_for_testing ${testfile}.exp ${testfile} [list ${testfile}.S main.c] {nodebug}] } {
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return -1
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}
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# Additional test to verify the referenced CU is not aged out.
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gdb_test_no_output "maintenance set dwarf2 max-cache-age 0"
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gdb_test "p array1" " = 1"
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gdb_test "p array2" " = 2" "array2 using DW_OP_call2"
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gdb_test "p array3" " = 3" "array3 using DW_OP_call4"
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# Location lists need PC.
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if ![runto_main] {
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return -1
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}
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gdb_test "p arraynoloc" " = <optimized out>"
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gdb_test "p arraycallnoloc" {Asked for position 0 of stack, stack only has 0 elements on it\.}
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