1 # Copyright (C) 2003, 2004, 2006 Free Software Foundation, Inc.
3 # This program is free software; you can redistribute it and/or modify
4 # it under the terms of the GNU General Public License as published by
5 # the Free Software Foundation; either version 2 of the License, or
6 # (at your option) any later version.
8 # This program is distributed in the hope that it will be useful,
9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 # GNU General Public License for more details.
13 # You should have received a copy of the GNU General Public License
14 # along with this program; if not, write to the Free Software
15 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
17 # Please email any bugs, comments, and/or additions to this file to:
20 # This file is part of the gdb testsuite.
26 # Test i386 prologue analyzer.
31 if ![istarget "i?86-*-*"] then {
32 verbose "Skipping i386 prologue tests."
36 set testfile "i386-prologue"
37 set srcfile ${testfile}.c
38 set binfile ${objdir}/${subdir}/${testfile}
40 # some targets have leading underscores on assembly symbols.
41 # TODO: detect this automatically
42 set additional_flags ""
43 if [istarget "i?86-*-cygwin*"] then {
44 set additional_flags "additional_flags=-DSYMBOL_PREFIX=\"_\""
47 # Don't use "debug", so that we don't have line information for the assembly
49 if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list $additional_flags]] != "" } {
50 untested i386-prologue.exp
55 # The code used by the tests here encodes some breakpoints by using
56 # inline assembler. This will generate a SIGTRAP which will be caught
57 # by GDB. At that point the instruction pointer will point at the
58 # next instruction, and execution can continue without any problems.
59 # Some systems however (QNX Neutrino, Solaris) will adjust the
60 # instruction pointer to point at the breakpoint instruction instead.
61 # On these systems we cannot continue unless we skip it. This
62 # procedure takes care of that.
64 proc skip_breakpoint { msg } {
65 gdb_test "if (*(unsigned char *)\$pc == 0xcc)\nset \$pc = \$pc + 1\nend" \
66 "" "skip breakpoint in ${msg}"
72 gdb_reinitialize_dir $srcdir/$subdir
76 # Run to `main' where we begin our tests.
79 if ![runto_main] then {
83 # Testcase for standard prologue.
85 gdb_test "continue" "Program received signal SIGTRAP.*" "continue to standard"
87 skip_breakpoint standard
89 gdb_test "backtrace 10" \
90 "#0\[ \t\]*$hex in standard.*\r\n#1\[ \t\]*$hex in main.*" \
91 "backtrace in standard"
93 gdb_test "info frame" \
94 ".*Saved registers:.*ebp at.*edi at.*eip at.*" \
95 "saved registers in standard"
98 # Testcase from breakpoints/2080.
100 gdb_test "break *(stack_align + 7)" \
101 "Breakpoint \[0-9\]* at $hex"
103 gdb_test "continue" \
104 "Breakpoint \[0-9\]*.*stack_align.*" \
105 "continue to stack_align + 7"
107 setup_kfail *-*-* gdb/2080
108 gdb_test "backtrace 10" \
109 "#0\[ \t\]*$hex in stack_align.*\r\n#1\[ \t\]*$hex in main.*" \
110 "first backtrace in stack_align"
112 gdb_test "continue" \
113 "Program received signal SIGTRAP.*" \
114 "continue in stack_align"
116 skip_breakpoint stack_align
118 setup_kfail *-*-* gdb/2080
119 gdb_test "backtrace 10" \
120 "#0\[ \t\]*$hex in stack_align.*\r\n#1\[ \t\]*$hex in main.*" \
121 "second backtrace in stack_align"
123 setup_kfail *-*-* gdb/2080
124 gdb_test "info frame" \
125 ".*Saved registers:.*ecx at.*ebp at.*edi at.*eip at.*" \
126 "saved registers in stack_align"
129 # Testcase from symtab/1253.
131 gdb_test "continue" "Program received signal SIGTRAP.*" "continue to gdb1253"
133 skip_breakpoint gdb1253
135 gdb_test "backtrace 10" \
136 "#0\[ \t\]*$hex in gdb1253.*\r\n#1\[ \t\]*$hex in main.*" \
137 "backtrace in gdb1253"
139 gdb_test "info frame" \
140 ".*Saved registers:.*ebp at.*edi at.*eip at.*" \
141 "saved registers in gdb1253"
144 # Testcase from backtrace/1718.
146 gdb_test "continue" "Program received signal SIGTRAP.*" "continue to gdb1718"
148 skip_breakpoint gdb1718
150 gdb_test "backtrace 10" \
151 "#0\[ \t\]*$hex in gdb1718.*\r\n#1\[ \t\]*$hex in main.*" \
152 "backtrace in gdb1718"
154 setup_kfail *-*-* gdb/1718
155 gdb_test "info frame" \
156 ".*Saved registers:.*esi at.*ebx at.*eip at.*" \
157 "saved registers in gdb1718"
160 # Testcase from backtrace/1338.
162 gdb_test "continue" "Program received signal SIGTRAP.*" "continue to gdb1338"
164 skip_breakpoint gdb1338
166 gdb_test "backtrace 10" \
167 "#0\[ \t\]*$hex in gdb1338.*\r\n#1\[ \t\]*$hex in main.*" \
168 "backtrace in gdb1338"
170 gdb_test "info frame" \
171 ".*Saved registers:.*ebx at.*esi at.*edi at.*eip at.*" \
172 "saved registers in gdb1338"
174 # Testcase jump_at_beginning.
175 gdb_test_multiple "break jump_at_beginning" \
176 "set breakpoint in jump_at_beginning" {
177 -re "Breakpoint \[0-9\]* at ($hex).*$gdb_prompt $" {
178 gdb_test "x/i $expect_out(1,string)" \
179 ".*<jump_at_beginning.*>:.*jmp.*" \
180 "check jump_at_beginning prologue end"
183 fail "set breakpoint in jump_at_beginning"