1 # Copyright 1998, 2000, 2001, 2002, 2003 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:
18 # bug-gdb@prep.ai.mit.edu
20 # This file was written by Kendra.
27 # Test debugging assembly level programs.
28 # This file uses asmsrc[12].s for input.
38 switch -glob -- [istarget] {
41 # ??? Won't work with ecoff systems like Tru64, but then we also
42 # don't have any other -g flag that creates mdebug output.
43 set asm-flags "-gdwarf2 -no-mdebug -I${srcdir}/${subdir} -I${objdir}/${subdir}"
62 set asm-flags "-gdwarf2 -I${srcdir}/${subdir} -I${objdir}/${subdir}"
66 if [istarget "*-*-cygwin*"] then {
67 set link-flags "--entry _start"
72 set link-flags "-Wl,--whole-archive -lgloss -Wl,--no-whole-archive"
76 set asm-flags "-mshort-double -m68hc11 -gdwarf2 --no-warn -I${srcdir}/${subdir} -I${objdir}/${subdir}"
80 set asm-flags "-mshort-double -m68hc12 -gdwarf2 --no-warn -I${srcdir}/${subdir} -I${objdir}/${subdir}"
93 set asm-flags "-xarch=v9 -gstabs -I${srcdir}/${subdir} -I${objdir}/${subdir}"
96 set asm-arch xstormy16
97 set asm-flags "-gdwarf2 -I${srcdir}/${subdir} -I${objdir}/${subdir}"
101 set gdb_wrapper_initialized 1
108 set asm-flags "-gdwarf2 -I${srcdir}/${subdir} -I${objdir}/${subdir}"
112 if { "${asm-arch}" == "" } {
113 gdb_suppress_entire_file "Assembly source test -- not implemented for this target."
116 # On FreeBSD, crt1.o the final link will fail because of unresolved
117 # symbols. It turns out that libc.so references symbols that are
118 # normally provided by crt1.o, which isn't linked in since we specify
119 # -nostartfiles. Using -nostdlib doesn't help since target_compile
120 # automatically adds -lm. Linking statically avoids this mess.
121 if [istarget "*-*-freebsd*"] then {
122 set link-flags "-static"
125 # Watch out, we are invoking the assembler, but the testsuite sets multilib
126 # switches according to compiler syntax. If we pass these options straight
127 # to the assembler, they won't always make sense. If we don't pass them to
128 # the assembler, the final link will complain that the object files were
129 # built with different defaults. So no matter what we do, we lose. We may as
130 # well get out of this test sooner rather than later.
131 set dest [target_info name]
132 if [board_info $dest exists multilib_flags] {
133 set multilib_flags [board_info $dest multilib_flags]
134 if { "${multilib_flags}" != "" } {
135 gdb_suppress_entire_file "Assembly source test -- multilibs not supported by this test."
140 set testfile "asm-source"
141 set binfile ${objdir}/${subdir}/${testfile}
142 set srcfile1 asmsrc1.s
143 set srcfile2 asmsrc2.s
145 remote_exec build "rm -f ${subdir}/arch.inc"
146 remote_download host ${srcdir}/${subdir}/${asm-arch}.inc ${subdir}/arch.inc
148 if { "${asm-flags}" == "" } {
149 #set asm-flags "-Wa,-gstabs,-I${srcdir}/${subdir},-I${objdir}/${subdir}"
150 set asm-flags "-gstabs -I${srcdir}/${subdir} -I${objdir}/${subdir}"
153 if {[target_assemble ${srcdir}/${subdir}/${srcfile1} asmsrc1.o "${asm-flags}"] != ""} then {
154 gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
156 if {[target_assemble ${srcdir}/${subdir}/${srcfile2} asmsrc2.o "${asm-flags}"] != ""} then {
157 gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
160 set opts "debug ldflags=-nostartfiles"
161 foreach i ${link-flags} {
162 append opts " ldflags=$i"
164 if { [gdb_compile "asmsrc1.o asmsrc2.o" "${binfile}" executable $opts] != "" } {
165 gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
168 remote_exec build "mv asmsrc1.o asmsrc2.o ${objdir}/${subdir}"
172 gdb_reinitialize_dir $srcdir/$subdir
176 # Run to `main' where we begin our tests.
179 if ![runto_main] then {
183 # Execute the `f' command and see if the result includes source info.
184 gdb_test "f" "asmsrc1\[.\]s:29.*several_nops" "f at main"
186 # See if we properly `next' over a macro with several insns.
187 gdb_test "n" "33\[ \]*.*foo2" "next over macro"
189 # See if we can properly `step' into a subroutine call.
190 gdb_test "s" "8\[ \]*.*" "step into foo2"
192 # Test 'info target', and incidentally capture the entry point address.
194 send_gdb "info target\n"
196 -re "Symbols from .*asm-source.*Entry point: 0x(\[01232456789abcdefABCDEF\]+).*$gdb_prompt $" {
197 set entry_point $expect_out(1,string)
200 -re ".*$gdb_prompt $" {
204 fail "info target (timeout)"
208 # Capture the start symbol (may be '_start' or 'start')
210 send_gdb "info symbol 0x$entry_point\n"
212 -re "info symbol 0x$entry_point\[\r\n\]+(\[^\r\n\]*) in section .*$gdb_prompt $" {
213 # We match the echoed `info symbol' command here, to help us
214 # reliably identify the beginning of the start symbol in the
215 # command's output. You might think we could just use '^' to
216 # start matching at the beginning of the line, but
217 # unfortunately, in Expect, '^' matches the beginning of the
218 # input that hasn't been matched by any expect clause yet. If
219 # every expect clause consumes a complete line, along with its
220 # terminating CR/LF, this is equivalent to the beginning of a
221 # line. But expect clauses that end with `.*' will consume as
222 # much as happened to arrive from the TTY --- exactly where
223 # they leave you depends on inter-process timing. :(
224 set entry_symbol $expect_out(1,string)
227 -re ".*$gdb_prompt $" {
231 fail "info symbol (timeout)"
235 # Now try a 'list' from the other source file.
236 gdb_test "list $entry_symbol" ".*gdbasm_startup.*" "list"
238 # Now try a source file search
239 gdb_test "search A routine for foo2 to call" \
240 "40\[ \t\]+comment \"A routine for foo2 to call.\"" "search"
242 # See if `f' prints the right source file.
243 gdb_test "f" ".*asmsrc2\[.\]s:8.*" "f in foo2"
245 # `next' one insn (or macro) to set up our stackframe (for the following bt).
246 gdb_test "n" "12\[ \]*.*foo3" "n in foo2"
248 # See if a simple `bt' prints the right source files and
249 # doesn't fall off the stack.
252 "\#0.*foo2.*asmsrc2\[.\]s:12.*\#1.*main.*asmsrc1\[.\]s:33" \
255 # See if a capped `bt' prints the right source files.
256 gdb_test "bt 2" "\#0.*foo2.*asmsrc2\[.\]s:12.*\#1.*main.*asmsrc1\[.\]s:33.*" "bt 2 in foo2"
258 # Step into another subroutine which lives back in the first source file.
259 gdb_test "s" "" "s 2"
261 # Next over insns to set up the stack frame.
262 gdb_test "n" "" "n 2"
264 # Now see if a capped `bt' is correct.
265 gdb_test "bt 3" "\#0.*foo3.*asmsrc1\[.\]s:45.*\#1.*foo2.*asmsrc2\[.\]s:12.*\#2.*main.*asmsrc1\[.\]s:33.*" "bt 3 in foo3"
267 # Try 'info source' from asmsrc1.s
268 gdb_test "info source" \
269 "Current source file is .*asmsrc1.s.*Source language is asm.*" \
270 "info source asmsrc1.s"
272 # Try 'finishing' from foo3
273 gdb_test "finish" "Run till exit from.*\[\r\n\]13\[ \t\]+gdbasm_call foo3" \
276 # Try 'info source' from asmsrc2.s
277 gdb_test "info source" \
278 "Current source file is .*asmsrc2.s.*Source language is asm.*" \
279 "info source asmsrc2.s"
281 # Try 'info sources'. This can produce a lot of output on systems
282 # with dynamic linking, where the system's shared libc was compiled
283 # with debugging info; for example, on Linux, this produces 47kb of
284 # output. So we consume it as we go.
285 send_gdb "info sources\n"
289 -re "^\[^,\]*asmsrc1.s(, |\[\r\n\]+)" {
293 -re "^\[^,\]*asmsrc2.s(, |\[\r\n\]+)" {
300 -re "$gdb_prompt $" {
301 if {$seen_asmsrc_1 && $seen_asmsrc_2} {
308 fail "info sources (timeout)"
314 gdb_test "info line" \
315 "Line 13 of.*asmsrc2.s.*starts at.*<foo2+.*> and ends at.*<foo2+.*>." \
318 # Try 'nexting' over next call to foo3
319 gdb_test "next" "17\[ \t\]+gdbasm_leave" "next over foo3"
321 # Try 'return' from foo2
322 gdb_test "return" "\#0 main .*37\[ \t\]+gdbasm_exit0" "return from foo2" \
323 "Make (foo2|selected stack frame) return now\?.*" "y"
325 # Disassemble something, check the output
326 proc test_dis { command var } {
328 send_gdb "${command}\n"
330 -re "${var}.*:.*(Cannot access|Bad address)" {
331 # The "disassembler" was only accessing the local
332 # executable and that would cause attempts to disassemble
333 # variables to fail (memory not valid).
334 fail "${command} (memory read error)"
336 -re "${var}.*:.*${gdb_prompt}" {
340 fail "${command} (timeout)"
345 # See if we can look at a global variable, three ways
346 gdb_test "print globalvar" ".* = 11" "look at global variable"
347 test_dis "x/i &globalvar" "globalvar"
348 test_dis "disassem &globalvar &globalvar+1" "globalvar"
350 # See if we can look at a static variable, three ways
351 gdb_test "print staticvar" ".* = 5" "look at static variable"
352 test_dis "x/i &staticvar" "staticvar"
353 test_dis "disassem &staticvar &staticvar+1" "staticvar"
355 # See if we can look at a static function
356 gdb_test "disassem foostatic" ".*<foostatic\\+0>:.*End of assembler dump." \
357 "look at static function"
359 remote_exec build "rm -f ${subdir}/arch.inc"