mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-11-28 12:33:36 +08:00
8cbc97c629
I see many fails in gdb.dwarf2/dynarr-ptr.exp on arm-linux target,
started from this
print foo.three_ptr.all^M
Cannot access memory at address 0x107c8^M
(gdb) FAIL: gdb.dwarf2/dynarr-ptr.exp: print foo.three_ptr.all
print foo.three_ptr.all(1)^M
Cannot access memory at address 0x107c8
It turns out that ":$ptr_size" is used incorrectly.
array_ptr_label: DW_TAG_pointer_type {
{DW_AT_byte_size :$ptr_size }
^^^^^^^^^^
{DW_AT_type :$array_label}
}
Since the FORM isn't given, and it starts with the ":", it is regarded
as a label reference by dwarf assembler. The generated asm file on
x86_64 is
.uleb128 6 /* Abbrev (DW_TAG_pointer_type) */
.4byte 8 - .Lcu1_begin <----- WRONG
.4byte .Llabel2 - .Lcu1_begin
Looks .Lcu1_begin is 0 on x86_64 and that is why this test passes on
x86_64. On arm, .Lcu1_begin is an address somewhere, and the value
of DW_AT_byte_size is a very large number, so memory read request
of such large length failed.
This patch is to remove ":" and set the form explicitly. The generated
asm file on x86_64 becomes
.uleb128 6 /* Abbrev (DW_TAG_pointer_type) */
.byte 8
.4byte .Llabel2 - .Lcu1_begin
gdb/testsuite:
2015-04-15 Yao Qi <yao.qi@linaro.org>
* gdb.dwarf2/dynarr-ptr.exp (assemble): Use $ptr_size instead
of ":$ptr_size" and set its form explicitly.
354 lines
8.6 KiB
Plaintext
354 lines
8.6 KiB
Plaintext
# Copyright 2014-2015 Free Software Foundation, Inc.
|
|
|
|
# This program is free software; you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation; either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
load_lib dwarf.exp
|
|
|
|
# This test can only be run on targets which support DWARF-2 and use gas.
|
|
if {![dwarf2_support]} {
|
|
return 0
|
|
}
|
|
|
|
standard_testfile dynarr-ptr.c dynarr-ptr-dw.S
|
|
|
|
# We need to know the size of integer and address types in order
|
|
# to write some of the debugging info we'd like to generate.
|
|
#
|
|
# For that, we ask GDB by debugging our dynarr-ptr.c program.
|
|
# Any program would do, but since we already have dynarr-ptr.c
|
|
# specifically for this testcase, might as well use that.
|
|
|
|
if { [prepare_for_testing ${testfile}.exp ${testfile} ${srcfile}] } {
|
|
untested ${testfile}.exp
|
|
return -1
|
|
}
|
|
|
|
# Make some DWARF for the test.
|
|
set asm_file [standard_output_file $srcfile2]
|
|
Dwarf::assemble $asm_file {
|
|
cu {} {
|
|
DW_TAG_compile_unit {
|
|
{DW_AT_language @DW_LANG_Ada95}
|
|
{DW_AT_name foo.adb}
|
|
{DW_AT_comp_dir /tmp}
|
|
} {
|
|
declare_labels integer_label array_label array_ptr_label \
|
|
array_typedef_label
|
|
set ptr_size [get_sizeof "void *" 96]
|
|
|
|
integer_label: DW_TAG_base_type {
|
|
{DW_AT_byte_size 4 DW_FORM_sdata}
|
|
{DW_AT_encoding @DW_ATE_signed}
|
|
{DW_AT_name integer}
|
|
}
|
|
|
|
array_label: DW_TAG_array_type {
|
|
{DW_AT_name foo__array_type}
|
|
{DW_AT_type :$integer_label}
|
|
{external 1 flag}
|
|
} {
|
|
DW_TAG_subrange_type {
|
|
{DW_AT_type :$integer_label}
|
|
{DW_AT_lower_bound {
|
|
DW_OP_push_object_address
|
|
DW_OP_lit8
|
|
DW_OP_minus
|
|
DW_OP_deref_size 4
|
|
} SPECIAL_expr}
|
|
{DW_AT_upper_bound {
|
|
DW_OP_push_object_address
|
|
DW_OP_lit4
|
|
DW_OP_minus
|
|
DW_OP_deref_size 4
|
|
} SPECIAL_expr}
|
|
}
|
|
}
|
|
array_ptr_label: DW_TAG_pointer_type {
|
|
{DW_AT_byte_size $ptr_size DW_FORM_data1}
|
|
{DW_AT_type :$array_label}
|
|
}
|
|
array_typedef_label: DW_TAG_typedef {
|
|
{DW_AT_name "foo__array_ptr"}
|
|
{DW_AT_type :$array_ptr_label}
|
|
}
|
|
DW_TAG_variable {
|
|
{DW_AT_name foo__three_ptr}
|
|
{DW_AT_type :$array_ptr_label}
|
|
{DW_AT_location {
|
|
DW_OP_addr table_1_ptr
|
|
} SPECIAL_expr}
|
|
{external 1 flag}
|
|
}
|
|
DW_TAG_variable {
|
|
{DW_AT_name foo__three_ptr_tdef}
|
|
{DW_AT_type :$array_typedef_label}
|
|
{DW_AT_location {
|
|
DW_OP_addr table_1_ptr
|
|
} SPECIAL_expr}
|
|
{external 1 flag}
|
|
}
|
|
DW_TAG_variable {
|
|
{DW_AT_name foo__five_ptr}
|
|
{DW_AT_type :$array_ptr_label}
|
|
{DW_AT_location {
|
|
DW_OP_addr table_2_ptr
|
|
} SPECIAL_expr}
|
|
{external 1 flag}
|
|
}
|
|
DW_TAG_variable {
|
|
{DW_AT_name foo__five_ptr_tdef}
|
|
{DW_AT_type :$array_typedef_label}
|
|
{DW_AT_location {
|
|
DW_OP_addr table_2_ptr
|
|
} SPECIAL_expr}
|
|
{external 1 flag}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
# Now that we've generated the DWARF debugging info, rebuild our
|
|
# program using our debug info instead of the info generated by
|
|
# the compiler.
|
|
|
|
if { [prepare_for_testing ${testfile}.exp ${testfile} \
|
|
[list $srcfile $asm_file] {nodebug}] } {
|
|
return -1
|
|
}
|
|
|
|
if ![runto_main] {
|
|
return -1
|
|
}
|
|
|
|
gdb_test_no_output "set language ada"
|
|
|
|
# foo.three_ptr.all
|
|
|
|
gdb_test "print foo.three_ptr.all" \
|
|
" = \\(1, 2, 3\\)"
|
|
|
|
gdb_test "print foo.three_ptr.all(1)" \
|
|
" = 1"
|
|
|
|
gdb_test "print foo.three_ptr.all(2)" \
|
|
" = 2"
|
|
|
|
gdb_test "print foo.three_ptr.all(3)" \
|
|
" = 3"
|
|
|
|
gdb_test "print foo.three_ptr.all'first" \
|
|
" = 1"
|
|
|
|
gdb_test "print foo.three_ptr.all'last" \
|
|
" = 3"
|
|
|
|
gdb_test "print foo.three_ptr.all'length" \
|
|
" = 3"
|
|
|
|
gdb_test "ptype foo.three_ptr.all" \
|
|
" = array \\(<>\\) of integer"
|
|
|
|
# foo.three_ptr
|
|
|
|
gdb_test "print foo.three_ptr(1)" \
|
|
" = 1"
|
|
|
|
gdb_test "print foo.three_ptr(2)" \
|
|
" = 2"
|
|
|
|
gdb_test "print foo.three_ptr(3)" \
|
|
" = 3"
|
|
|
|
gdb_test "print foo.three_ptr'first" \
|
|
" = 1"
|
|
|
|
gdb_test "print foo.three_ptr'last" \
|
|
" = 3"
|
|
|
|
gdb_test "print foo.three_ptr'length" \
|
|
" = 3"
|
|
|
|
gdb_test "ptype foo.three_ptr" \
|
|
" = access array \\(<>\\) of integer"
|
|
|
|
# foo.three_ptr_tdef.all
|
|
|
|
gdb_test "print foo.three_ptr_tdef.all" \
|
|
" = \\(1, 2, 3\\)"
|
|
|
|
gdb_test "print foo.three_ptr_tdef.all(1)" \
|
|
" = 1"
|
|
|
|
gdb_test "print foo.three_ptr_tdef.all(2)" \
|
|
" = 2"
|
|
|
|
gdb_test "print foo.three_ptr_tdef.all(3)" \
|
|
" = 3"
|
|
|
|
gdb_test "print foo.three_ptr_tdef.all'first" \
|
|
" = 1"
|
|
|
|
gdb_test "print foo.three_ptr_tdef.all'last" \
|
|
" = 3"
|
|
|
|
gdb_test "print foo.three_ptr_tdef.all'length" \
|
|
" = 3"
|
|
|
|
gdb_test "ptype foo.three_ptr_tdef.all" \
|
|
" = array \\(<>\\) of integer"
|
|
|
|
# foo.three_ptr_tdef
|
|
|
|
gdb_test "print foo.three_ptr_tdef(1)" \
|
|
" = 1"
|
|
|
|
gdb_test "print foo.three_ptr_tdef(2)" \
|
|
" = 2"
|
|
|
|
gdb_test "print foo.three_ptr_tdef(3)" \
|
|
" = 3"
|
|
|
|
gdb_test "print foo.three_ptr_tdef'first" \
|
|
" = 1"
|
|
|
|
gdb_test "print foo.three_ptr_tdef'last" \
|
|
" = 3"
|
|
|
|
gdb_test "print foo.three_ptr_tdef'length" \
|
|
" = 3"
|
|
|
|
gdb_test "ptype foo.three_ptr_tdef" \
|
|
" = access array \\(<>\\) of integer"
|
|
|
|
# foo.five_ptr.all
|
|
|
|
gdb_test "print foo.five_ptr.all" \
|
|
" = \\(2 => 5, 8, 13, 21, 34\\)"
|
|
|
|
gdb_test "print foo.five_ptr.all(2)" \
|
|
" = 5"
|
|
|
|
gdb_test "print foo.five_ptr.all(3)" \
|
|
" = 8"
|
|
|
|
gdb_test "print foo.five_ptr.all(4)" \
|
|
" = 13"
|
|
|
|
gdb_test "print foo.five_ptr.all(5)" \
|
|
" = 21"
|
|
|
|
gdb_test "print foo.five_ptr.all(6)" \
|
|
" = 34"
|
|
|
|
gdb_test "print foo.five_ptr.all'first" \
|
|
" = 2"
|
|
|
|
gdb_test "print foo.five_ptr.all'last" \
|
|
" = 6"
|
|
|
|
gdb_test "print foo.five_ptr.all'length" \
|
|
" = 5"
|
|
|
|
gdb_test "ptype foo.five_ptr.all" \
|
|
" = array \\(<>\\) of integer"
|
|
|
|
# foo.five_ptr
|
|
|
|
gdb_test "print foo.five_ptr(2)" \
|
|
" = 5"
|
|
|
|
gdb_test "print foo.five_ptr(3)" \
|
|
" = 8"
|
|
|
|
gdb_test "print foo.five_ptr(4)" \
|
|
" = 13"
|
|
|
|
gdb_test "print foo.five_ptr(5)" \
|
|
" = 21"
|
|
|
|
gdb_test "print foo.five_ptr(6)" \
|
|
" = 34"
|
|
|
|
gdb_test "print foo.five_ptr'first" \
|
|
" = 2"
|
|
|
|
gdb_test "print foo.five_ptr'last" \
|
|
" = 6"
|
|
|
|
gdb_test "print foo.five_ptr'length" \
|
|
" = 5"
|
|
|
|
gdb_test "ptype foo.five_ptr" \
|
|
" = access array \\(<>\\) of integer"
|
|
|
|
# foo.five_ptr_tdef.all
|
|
|
|
gdb_test "print foo.five_ptr_tdef.all" \
|
|
" = \\(2 => 5, 8, 13, 21, 34\\)"
|
|
|
|
gdb_test "print foo.five_ptr_tdef.all(2)" \
|
|
" = 5"
|
|
|
|
gdb_test "print foo.five_ptr_tdef.all(3)" \
|
|
" = 8"
|
|
|
|
gdb_test "print foo.five_ptr_tdef.all(4)" \
|
|
" = 13"
|
|
|
|
gdb_test "print foo.five_ptr_tdef.all(5)" \
|
|
" = 21"
|
|
|
|
gdb_test "print foo.five_ptr_tdef.all(6)" \
|
|
" = 34"
|
|
|
|
gdb_test "print foo.five_ptr_tdef.all'first" \
|
|
" = 2"
|
|
|
|
gdb_test "print foo.five_ptr_tdef.all'last" \
|
|
" = 6"
|
|
|
|
gdb_test "print foo.five_ptr_tdef.all'length" \
|
|
" = 5"
|
|
|
|
gdb_test "ptype foo.five_ptr_tdef.all" \
|
|
" = array \\(<>\\) of integer"
|
|
|
|
# foo.five_ptr_tdef
|
|
|
|
gdb_test "print foo.five_ptr_tdef(2)" \
|
|
" = 5"
|
|
|
|
gdb_test "print foo.five_ptr_tdef(3)" \
|
|
" = 8"
|
|
|
|
gdb_test "print foo.five_ptr_tdef(4)" \
|
|
" = 13"
|
|
|
|
gdb_test "print foo.five_ptr_tdef(5)" \
|
|
" = 21"
|
|
|
|
gdb_test "print foo.five_ptr_tdef(6)" \
|
|
" = 34"
|
|
|
|
gdb_test "print foo.five_ptr_tdef'first" \
|
|
" = 2"
|
|
|
|
gdb_test "print foo.five_ptr_tdef'last" \
|
|
" = 6"
|
|
|
|
gdb_test "print foo.five_ptr_tdef'length" \
|
|
" = 5"
|
|
|
|
gdb_test "ptype foo.five_ptr_tdef" \
|
|
" = access array \\(<>\\) of integer"
|