2223449a47
Some of the tests in gdb.dwarf2 which use Dwarf::assemble refer to
(minimal/linker) symbols created in the course of building a small
test program. Some targets use a prefix such as underscore ("_") on
these symbols. Many of the tests in gdb.dwarf2 do not take this into
account. As a consequence, these tests fail to build, resulting
either in failures or untested testcases.
Here is an example from gdb.dwarf2/dw2-regno-invalid.exp:
Dwarf::assemble $asm_file {
cu {} {
compile_unit {
{low_pc main DW_FORM_addr}
{high_pc main+0x10000 DW_FORM_addr}
} {
...
}
For targets which require an underscore prefix on linker symbols,
the two occurrences of "main" would have to have a prepended underscore,
i.e. _main instead of main.
For the above case, a call to the new proc gdb_target_symbol is used
prepend the correct prefix to the symbol. I.e. the above code is
rewritten (as shown in the patch) as follows:
Dwarf::assemble $asm_file {
cu {} {
compile_unit {
{low_pc [gdb_target_symbol main] DW_FORM_addr}
{high_pc [gdb_target_symbol main]+0x10000 DW_FORM_addr}
} {
...
}
I also found it necessary to make an adjustment to lib/dwarf.exp so that
expressions of more than just one list element can be used in DW_TAG_...
constructs. Both atomic-type.exp and dw2-bad-mips-linkage-name.exp require
this new functionality.
gdb/testsuite/ChangeLog:
* lib/gdb.exp (gdb_target_symbol_prefix, gdb_target_symbol):
New procs.
* lib/dwarf.exp (_handle_DW_TAG): Handle attribute values,
representing expressions, of more than one list element.
* gdb.dwarf2/atomic-type.exp (Dwarf::assemble): Use gdb_target_symbol
to prepend linker symbol prefix to f.
* gdb.dwarf2/data-loc.exp (Dwarf::assemble): Likewise, for
table_1 and table_2.
* gdb.dwarf2/dw2-bad-mips-linkage-name.exp (Dwarf::assemble):
Likewise, for f and g.
* gdb.dwarf2/dw2-ifort-parameter.exp (Dwarf::assemble): Likewise,
for ptr.
* gdb.dwarf2/dw2-regno-invalid.exp (Dwarf::assemble): Likewise,
for main.
* gdb.dwarf2/dynarr-ptr.exp (Dwarf::assemble): Likewise, for
table_1_ptr and table_2_ptr.
291 lines
7.3 KiB
Text
291 lines
7.3 KiB
Text
# Copyright 2014-2015 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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# 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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standard_testfile data-loc.c data-loc-dw.S
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# We need to know the size of integer and address types in order
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# to write some of the debugging info we'd like to generate.
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#
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# For that, we ask GDB by debugging our data-loc.c program.
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# Any program would do, but since we already have data-loc.c
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# specifically for this testcase, might as well use that.
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if { [prepare_for_testing ${testfile}.exp ${testfile} ${srcfile}] } {
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untested ${testfile}.exp
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return -1
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}
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# Make some DWARF for the test.
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set asm_file [standard_output_file $srcfile2]
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Dwarf::assemble $asm_file {
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cu {} {
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DW_TAG_compile_unit {
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{DW_AT_language @DW_LANG_Ada95}
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{DW_AT_name foo.adb}
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{DW_AT_comp_dir /tmp}
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} {
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declare_labels integer_label array_label array_ptr_label
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integer_label: DW_TAG_base_type {
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{DW_AT_byte_size 4 DW_FORM_sdata}
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{DW_AT_encoding @DW_ATE_signed}
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{DW_AT_name integer}
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}
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array_label: DW_TAG_array_type {
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{DW_AT_name foo__array_type}
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{DW_AT_type :$integer_label}
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{DW_AT_data_location {
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DW_OP_push_object_address
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DW_OP_deref
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} SPECIAL_expr}
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{external 1 flag}
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} {
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DW_TAG_subrange_type {
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{DW_AT_type :$integer_label}
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{DW_AT_lower_bound {
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DW_OP_push_object_address
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DW_OP_plus_uconst [get_sizeof "void *" 96]
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DW_OP_deref
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DW_OP_deref_size [get_sizeof "int" 4]
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} SPECIAL_expr}
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{DW_AT_upper_bound {
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DW_OP_push_object_address
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DW_OP_plus_uconst [get_sizeof "void *" 96]
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DW_OP_deref
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DW_OP_plus_uconst [get_sizeof "int" 4]
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DW_OP_deref_size [get_sizeof "int" 4]
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} SPECIAL_expr}
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}
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}
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array_ptr_label: DW_TAG_typedef {
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{DW_AT_name foo__array_type}
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{DW_AT_type :$array_label}
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}
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DW_TAG_variable {
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{DW_AT_name foo__three}
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{DW_AT_type :$array_label}
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{DW_AT_location {
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DW_OP_addr [gdb_target_symbol table_1]
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} SPECIAL_expr}
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{external 1 flag}
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}
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DW_TAG_variable {
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{DW_AT_name foo__three_tdef}
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{DW_AT_type :$array_ptr_label}
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{DW_AT_location {
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DW_OP_addr [gdb_target_symbol table_1]
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} SPECIAL_expr}
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{external 1 flag}
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}
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DW_TAG_variable {
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{DW_AT_name foo__five}
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{DW_AT_type :$array_label}
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{DW_AT_location {
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DW_OP_addr [gdb_target_symbol table_2]
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} SPECIAL_expr}
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{external 1 flag}
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}
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DW_TAG_variable {
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{DW_AT_name foo__five_tdef}
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{DW_AT_type :$array_ptr_label}
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{DW_AT_location {
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DW_OP_addr [gdb_target_symbol table_2]
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} SPECIAL_expr}
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{external 1 flag}
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}
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}
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}
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}
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# Now that we've generated the DWARF debugging info, rebuild our
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# program using our debug info instead of the info generated by
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# the compiler.
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if { [prepare_for_testing ${testfile}.exp ${testfile} \
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[list $srcfile $asm_file] {nodebug}] } {
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return -1
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}
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if ![runto_main] {
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return -1
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}
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gdb_test_no_output "set language ada"
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# foo.three
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gdb_test "print foo.three" \
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" = \\(1, 2, 3\\)"
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gdb_test "ptype foo.three" \
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"type = array \\(1 .. 3\\) of integer"
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gdb_test "print foo.three(1)" \
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" = 1"
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gdb_test "print foo.three(2)" \
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" = 2"
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gdb_test "print foo.three(3)" \
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" = 3"
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gdb_test "print foo.three'first" \
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" = 1"
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gdb_test "print foo.three'last" \
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" = 3"
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gdb_test "print foo.three'length" \
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" = 3"
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# foo.three_tdef
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gdb_test "print foo.three_tdef" \
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" = \\(1, 2, 3\\)"
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gdb_test "ptype foo.three_tdef" \
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"type = array \\(1 .. 3\\) of integer"
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gdb_test "print foo.three_tdef(1)" \
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" = 1"
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gdb_test "print foo.three_tdef(2)" \
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" = 2"
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gdb_test "print foo.three_tdef(3)" \
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" = 3"
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gdb_test "print foo.three_tdef'first" \
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" = 1"
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gdb_test "print foo.three_tdef'last" \
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" = 3"
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gdb_test "print foo.three_tdef'length" \
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" = 3"
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gdb_test "print foo.five" \
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" = \\(2 => 5, 8, 13, 21, 34\\)"
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gdb_test "ptype foo.five" \
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"type = array \\(2 .. 6\\) of integer"
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gdb_test "ptype foo.array_type" \
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"type = array \\(<>\\) of integer"
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# foo.five
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gdb_test "print foo.five(2)" \
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" = 5"
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gdb_test "print foo.five(3)" \
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" = 8"
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gdb_test "print foo.five(4)" \
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" = 13"
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gdb_test "print foo.five(5)" \
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" = 21"
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gdb_test "print foo.five(6)" \
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" = 34"
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gdb_test "print foo.five'first" \
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" = 2"
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gdb_test "print foo.five'last" \
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" = 6"
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gdb_test "print foo.five'length" \
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" = 5"
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# foo.five_tdef
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gdb_test "print foo.five_tdef" \
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" = \\(2 => 5, 8, 13, 21, 34\\)"
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gdb_test "ptype foo.five_tdef" \
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"type = array \\(2 .. 6\\) of integer"
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gdb_test "ptype foo.array_type" \
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"type = array \\(<>\\) of integer"
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gdb_test "print foo.five_tdef(2)" \
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" = 5"
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gdb_test "print foo.five_tdef(3)" \
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" = 8"
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gdb_test "print foo.five_tdef(4)" \
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" = 13"
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gdb_test "print foo.five_tdef(5)" \
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" = 21"
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gdb_test "print foo.five_tdef(6)" \
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" = 34"
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gdb_test "print foo.five_tdef'first" \
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" = 2"
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gdb_test "print foo.five_tdef'last" \
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" = 6"
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gdb_test "print foo.five_tdef'length" \
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" = 5"
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gdb_test_no_output "set lang c"
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# foo__three
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gdb_test "print foo__three" \
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" = \\{1, 2, 3\\}"
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gdb_test "ptype foo__three" \
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"type = integer \\\[3\\\]"
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# foo__three_tdef
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gdb_test "print foo__three_tdef" \
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" = \\{1, 2, 3\\}"
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gdb_test "ptype foo__three_tdef" \
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"type = integer \\\[3\\\]"
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# foo__five
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gdb_test "print foo__five" \
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" = \\{5, 8, 13, 21, 34\\}"
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gdb_test "ptype foo__five" \
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"type = integer \\\[5\\\]"
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# foo__five_tdef
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gdb_test "print foo__five_tdef" \
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" = \\{5, 8, 13, 21, 34\\}"
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gdb_test "ptype foo__five_tdef" \
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"type = integer \\\[5\\\]"
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gdb_test "ptype foo__array_type" \
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"type = integer \\\[variable length\\\]"
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