1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
|
# Copyright 2020-2022 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 if executable generated from eh_return.c assert when setting a
# breakpoint at the last insn of eh, and running to it.
standard_testfile
# Set compiler flags.
if {[istarget "powerpc*"]} {
# PowerPC generates a Traceback Table, as defined in the PPC64 ABI,
# following each function by default. The Traceback Table information is
# typically interpreted by the disassembler as data represented with
# .long xxxx following the last instruction in the function. For example:
#
# Dump of assembler code for function eh2:
# 0x00000000100009e0 <+0>: lis r2,4098
# ...
# 0x0000000010000b04 <+292>: add r1,r1,r10
# 0x0000000010000b08 <+296>: blr
# 0x0000000010000b0c <+300>: .long 0x0
# 0x0000000010000b10 <+304>: .long 0x1000000
# 0x0000000010000b14 <+308>: .long 0x1000180
# End of assembler dump.
#
# Disable the Traceback Table generation, using the PowerPC specific
# compiler option, so the test gdb_test_multiple "disassemble eh2" will
# locate the address of the blr instruction not the last .long statement.
if { [test_compiler_info "gcc-*"] } {
set compile_flags {debug nopie additional_flags=-mtraceback=no}
} elseif { [test_compiler_info "xlc-*"] } {
set compile_flags {debug nopie additional_flags=-qtbtable=none}
} elseif { [test_compiler_info "clang-*"] } {
set compile_flags [list debug nopie additional_flags=-mllvm \
additional_flags=-xcoff-traceback-table=false]
} else {
set compile_flags {debug nopie }
}
} else {
set compile_flags {debug nopie}
}
if {[prepare_for_testing "failed to prepare" $testfile $srcfile \
$compile_flags]} {
return -1
}
set address -1
# Get the address of the last insn in function eh2.
gdb_test_multiple "disassemble eh2" "" {
-re -wrap "($hex)\[^\r\n\]*\r\nEnd of assembler dump." {
set address $expect_out(1,string)
pass $gdb_test_name
}
}
if { $address == -1 } {
return 0
}
clean_restart ${binfile}
gdb_assert [gdb_breakpoint "*$address" no-message] "set breakpoint on address"
# The assert did not reproduce when running to main, and continuing to the
# breakpoint, so instead, run to the breakpoint.
gdb_run_cmd
gdb_test "" "Breakpoint .*" "hit breakpoint"
|
