1 # Copyright 1998, 2000, 2001, 2002, 2003, 2004 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.
37 set link-flags "--entry _start"
39 switch -glob -- [istarget] {
42 # ??? Won't work with ecoff systems like Tru64, but then we also
43 # don't have any other -g flag that creates mdebug output.
44 set asm-flags "-gdwarf2 -no-mdebug -I${srcdir}/${subdir} -I${objdir}/${subdir}"
66 set asm-flags "-gdwarf2 -I${srcdir}/${subdir} -I${objdir}/${subdir}"
73 append link-flags " -Wl,--whole-archive -lgloss -Wl,--no-whole-archive"
77 set asm-flags "-mshort-double -m68hc11 -gdwarf2 --no-warn -I${srcdir}/${subdir} -I${objdir}/${subdir}"
81 set asm-flags "-mshort-double -m68hc12 -gdwarf2 --no-warn -I${srcdir}/${subdir} -I${objdir}/${subdir}"
91 set asm-flags "-gdwarf2 -I${srcdir}/${subdir} -I${objdir}/${subdir}"
98 set asm-flags "-xarch=v9 -gstabs -I${srcdir}/${subdir} -I${objdir}/${subdir}"
101 set asm-arch xstormy16
102 set asm-flags "-gdwarf2 -I${srcdir}/${subdir} -I${objdir}/${subdir}"
106 set gdb_wrapper_initialized 1
113 set asm-flags "-gdwarf2 -I${srcdir}/${subdir} -I${objdir}/${subdir}"
117 if { "${asm-arch}" == "" } {
118 gdb_suppress_entire_file "Assembly source test -- not implemented for this target."
121 # On FreeBSD and NetBSD, the final link will fail because of
122 # unresolved symbols. It turns out that libc.so references symbols
123 # that are normally provided by crt1.o, which isn't linked in since we
124 # specify -nostartfiles. Using -nostdlib doesn't help since
125 # target_compile automatically adds -lm. Linking statically avoids
128 # On Solaris, linking dynamically results in a binary that dumps core.
130 if {[istarget "*-*-freebsd*"] || [istarget "*-*-netbsd*"]
131 || [istarget "*-*-solaris2*"]} then {
132 append link-flags " -static"
135 # On NetBSD/ELF we need a special NetBSD-identifying note section.
136 if { [istarget "*-*-netbsdelf*"]
137 || [istarget "x86_64-*-netbsd*"] } then {
138 set asm-note "netbsd"
141 # Watch out, we are invoking the assembler, but the testsuite sets multilib
142 # switches according to compiler syntax. If we pass these options straight
143 # to the assembler, they won't always make sense. If we don't pass them to
144 # the assembler, the final link will complain that the object files were
145 # built with different defaults. So no matter what we do, we lose. We may as
146 # well get out of this test sooner rather than later.
147 set dest [target_info name]
148 if [board_info $dest exists multilib_flags] {
149 set multilib_flags [board_info $dest multilib_flags]
150 if { "${multilib_flags}" != "" } {
151 gdb_suppress_entire_file "Assembly source test -- multilibs not supported by this test."
156 set testfile "asm-source"
157 set binfile ${objdir}/${subdir}/${testfile}
158 set srcfile1 asmsrc1.s
159 set srcfile2 asmsrc2.s
161 remote_exec build "rm -f ${subdir}/arch.inc"
162 remote_download host ${srcdir}/${subdir}/${asm-arch}.inc ${subdir}/arch.inc
163 remote_exec build "rm -f ${subdir}/note.inc"
164 remote_download host ${srcdir}/${subdir}/${asm-note}.inc ${subdir}/note.inc
166 if { "${asm-flags}" == "" } {
167 #set asm-flags "-Wa,-gstabs,-I${srcdir}/${subdir},-I${objdir}/${subdir}"
168 set asm-flags "-gstabs -I${srcdir}/${subdir} -I${objdir}/${subdir}"
171 if {[target_assemble ${srcdir}/${subdir}/${srcfile1} asmsrc1.o "${asm-flags}"] != ""} then {
172 gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
174 if {[target_assemble ${srcdir}/${subdir}/${srcfile2} asmsrc2.o "${asm-flags}"] != ""} then {
175 gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
178 set opts "debug ldflags=-nostartfiles"
179 foreach i ${link-flags} {
180 append opts " ldflags=$i"
182 if { [gdb_compile "asmsrc1.o asmsrc2.o" "${binfile}" executable $opts] != "" } {
183 gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
186 remote_exec build "mv asmsrc1.o asmsrc2.o ${objdir}/${subdir}"
190 gdb_reinitialize_dir $srcdir/$subdir
194 # Run to `main' where we begin our tests.
197 if ![runto_main] then {
201 # Execute the `f' command and see if the result includes source info.
202 gdb_test "f" "asmsrc1\[.\]s:29.*several_nops" "f at main"
204 # See if we properly `next' over a macro with several insns.
205 gdb_test "n" "33\[ \]*.*foo2" "next over macro"
207 # See if we can properly `step' into a subroutine call.
208 gdb_test "s" "8\[ \]*.*" "step into foo2"
210 # Test 'info target', and incidentally capture the entry point address.
212 send_gdb "info target\n"
214 -re "Symbols from .*asm-source.*Entry point: 0x(\[01232456789abcdefABCDEF\]+).*$gdb_prompt $" {
215 set entry_point $expect_out(1,string)
218 -re ".*$gdb_prompt $" {
222 fail "info target (timeout)"
226 # Capture the start symbol (may be '_start' or 'start')
228 send_gdb "info symbol 0x$entry_point\n"
230 -re "info symbol 0x$entry_point\[\r\n\]+(\[^\r\n\]*) in section .*$gdb_prompt $" {
231 # We match the echoed `info symbol' command here, to help us
232 # reliably identify the beginning of the start symbol in the
233 # command's output. You might think we could just use '^' to
234 # start matching at the beginning of the line, but
235 # unfortunately, in Expect, '^' matches the beginning of the
236 # input that hasn't been matched by any expect clause yet. If
237 # every expect clause consumes a complete line, along with its
238 # terminating CR/LF, this is equivalent to the beginning of a
239 # line. But expect clauses that end with `.*' will consume as
240 # much as happened to arrive from the TTY --- exactly where
241 # they leave you depends on inter-process timing. :(
242 set entry_symbol $expect_out(1,string)
245 -re ".*$gdb_prompt $" {
249 fail "info symbol (timeout)"
253 # Now try a 'list' from the other source file.
254 gdb_test "list $entry_symbol" ".*gdbasm_startup.*" "list"
256 # Now try a source file search
257 gdb_test "search A routine for foo2 to call" \
258 "40\[ \t\]+comment \"A routine for foo2 to call.\"" "search"
260 # See if `f' prints the right source file.
261 gdb_test "f" ".*asmsrc2\[.\]s:8.*" "f in foo2"
263 # `next' one insn (or macro) to set up our stackframe (for the following bt).
264 gdb_test "n" "12\[ \]*.*foo3" "n in foo2"
266 # See if a simple `bt' prints the right source files and
267 # doesn't fall off the stack.
270 "\#0.*foo2.*asmsrc2\[.\]s:12.*\#1.*main.*asmsrc1\[.\]s:33" \
273 # See if a capped `bt' prints the right source files.
274 gdb_test "bt 2" "\#0.*foo2.*asmsrc2\[.\]s:12.*\#1.*main.*asmsrc1\[.\]s:33.*" "bt 2 in foo2"
276 # Step into another subroutine which lives back in the first source file.
277 gdb_test "s" "" "s 2"
279 # Next over insns to set up the stack frame.
280 gdb_test "n" "" "n 2"
282 # Now see if a capped `bt' is correct.
283 gdb_test "bt 3" "\#0.*foo3.*asmsrc1\[.\]s:45.*\#1.*foo2.*asmsrc2\[.\]s:12.*\#2.*main.*asmsrc1\[.\]s:33.*" "bt 3 in foo3"
285 # Try 'info source' from asmsrc1.s
286 gdb_test "info source" \
287 "Current source file is .*asmsrc1.s.*Source language is asm.*" \
288 "info source asmsrc1.s"
290 # Try 'finishing' from foo3
291 gdb_test "finish" "Run till exit from.*\[\r\n\]13\[ \t\]+gdbasm_call foo3" \
294 # Try 'info source' from asmsrc2.s
295 gdb_test "info source" \
296 "Current source file is .*asmsrc2.s.*Source language is asm.*" \
297 "info source asmsrc2.s"
299 # Try 'info sources'. This can produce a lot of output on systems
300 # with dynamic linking, where the system's shared libc was compiled
301 # with debugging info; for example, on Linux, this produces 47kb of
302 # output. So we consume it as we go.
303 send_gdb "info sources\n"
307 -re "^\[^,\]*asmsrc1.s(, |\[\r\n\]+)" {
311 -re "^\[^,\]*asmsrc2.s(, |\[\r\n\]+)" {
318 -re "$gdb_prompt $" {
319 if {$seen_asmsrc_1 && $seen_asmsrc_2} {
326 fail "info sources (timeout)"
332 gdb_test "info line" \
333 "Line 13 of.*asmsrc2.s.*starts at.*<foo2+.*> and ends at.*<foo2+.*>." \
336 # Try 'nexting' over next call to foo3
337 gdb_test "next" "17\[ \t\]+gdbasm_leave" "next over foo3"
339 # Try 'return' from foo2
340 gdb_test "return" "\#0 main .*37\[ \t\]+gdbasm_exit0" "return from foo2" \
341 "Make (foo2|selected stack frame) return now\?.*" "y"
343 # Disassemble something, check the output
344 proc test_dis { command var } {
346 send_gdb "${command}\n"
348 -re "${var}.*:.*(Cannot access|Bad address)" {
349 # The "disassembler" was only accessing the local
350 # executable and that would cause attempts to disassemble
351 # variables to fail (memory not valid).
352 fail "${command} (memory read error)"
354 -re "${var}.*:.*${gdb_prompt}" {
358 fail "${command} (timeout)"
363 # See if we can look at a global variable, three ways
364 gdb_test "print globalvar" ".* = 11" "look at global variable"
365 test_dis "x/i &globalvar" "globalvar"
366 test_dis "disassem &globalvar &globalvar+1" "globalvar"
368 # See if we can look at a static variable, three ways
369 gdb_test "print staticvar" ".* = 5" "look at static variable"
370 test_dis "x/i &staticvar" "staticvar"
371 test_dis "disassem &staticvar &staticvar+1" "staticvar"
373 # See if we can look at a static function
374 gdb_test "disassem foostatic" ".*<foostatic\\+0>:.*End of assembler dump." \
375 "look at static function"
377 remote_exec build "rm -f ${subdir}/arch.inc"
378 remote_exec build "rm -f ${subdir}/note.inc"