forked from Imagelibrary/binutils-gdb
a88ee931ee
[ Changes in v2:
- rebase on trunk
Changes in v3:
- add test-case ]
We should exclude matches to the ending PC to prevent false matches with the
next function, as prologue_end is located at the end PC.
<fun1>:
0x00: ... <-- start_pc
0x04: ...
0x08: ... <-- breakpoint
0x0c: ret
<fun2>:
0x10: ret <-- end_pc | prologue_end of fun2
Tested on x86_64-linux.
Co-Authored-By: WANG Rui <r@hev.cc> (fix, tiny change [1])
Co-Authored-By: Tom de Vries <tdevries@suse.de> (test-case)
Approved-by: Kevin Buettner <kevinb@redhat.com>
[1] https://www.gnu.org/prep/maintain/html_node/Legally-Significant.html
PR symtab/30369
Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=30369
119 lines
2.9 KiB
Plaintext
119 lines
2.9 KiB
Plaintext
# Copyright 2023 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/>.
|
|
|
|
# Check that prologue analysis in foo is correct in the presence of a
|
|
# prologue_end marker in immediately following function bar.
|
|
|
|
load_lib dwarf.exp
|
|
|
|
# This test can only be run on targets which support DWARF-2 and use gas.
|
|
require dwarf2_support
|
|
|
|
standard_testfile .c .S
|
|
|
|
set asm_file [standard_output_file $srcfile2]
|
|
Dwarf::assemble $asm_file {
|
|
global srcdir subdir srcfile srcfile2
|
|
declare_labels lines_label
|
|
|
|
cu {} {
|
|
compile_unit {
|
|
{language @DW_LANG_C}
|
|
{name dw2-prologue-end.c}
|
|
{stmt_list ${lines_label} DW_FORM_sec_offset}
|
|
} {
|
|
subprogram {
|
|
{external 1 flag}
|
|
{name foo}
|
|
{low_pc foo_label addr}
|
|
{high_pc foo_end addr}
|
|
}
|
|
subprogram {
|
|
{external 1 flag}
|
|
{name bar}
|
|
{low_pc bar_label addr}
|
|
{high_pc bar_end addr}
|
|
}
|
|
}
|
|
}
|
|
|
|
lines {version 5} lines_label {
|
|
set diridx [include_dir "${srcdir}/${subdir}"]
|
|
file_name "$srcfile" $diridx
|
|
|
|
program {
|
|
DW_LNS_set_file $diridx
|
|
|
|
DW_LNE_set_address foo_label
|
|
line [gdb_get_line_number "Foo body"]
|
|
DW_LNS_copy
|
|
|
|
DW_LNE_set_address bar_label
|
|
DW_LNS_set_prologue_end
|
|
line [gdb_get_line_number "Bar body"]
|
|
DW_LNS_copy
|
|
|
|
DW_LNE_set_address bar_end
|
|
DW_LNE_end_sequence
|
|
}
|
|
}
|
|
}
|
|
|
|
if { [prepare_for_testing "failed to prepare" ${testfile} \
|
|
[list $srcfile $asm_file] {nodebug}] } {
|
|
return -1
|
|
}
|
|
|
|
# Don't runto main here, otherwise the following doesn't
|
|
# function as regression test for PR30369.
|
|
|
|
# Get the "break foo" address.
|
|
|
|
set break_addr ""
|
|
gdb_test_multiple "break foo" "" {
|
|
-re -wrap "at ($hex):\[^\r\n\]*" {
|
|
set break_addr $expect_out(1,string)
|
|
pass $gdb_test_name
|
|
}
|
|
}
|
|
|
|
if { $break_addr == "" } {
|
|
return
|
|
}
|
|
|
|
# Get the "foo_label" address.
|
|
|
|
set foo_label_addr ""
|
|
gdb_test_multiple "print /x &foo_label" "" {
|
|
-re -wrap "= ($hex)" {
|
|
set foo_label_addr $expect_out(1,string)
|
|
pass $gdb_test_name
|
|
}
|
|
}
|
|
|
|
if { $foo_label_addr == "" } {
|
|
return
|
|
}
|
|
|
|
# Check that bar immediately follows foo. Otherwise the following doesn't
|
|
# function as regression test for PR30369.
|
|
|
|
gdb_test "print &foo_end == &bar_label" " = 1"
|
|
|
|
# Check that the breakpoint is set at the expected address. Regression test
|
|
# for PR30369.
|
|
|
|
gdb_assert { $break_addr == $foo_label_addr }
|