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"
75 set asm-flags "-mshort-double -m68hc11 -gdwarf2 --no-warn -I${srcdir}/${subdir} -I${objdir}/${subdir}"
79 set asm-flags "-mshort-double -m68hc12 -gdwarf2 --no-warn -I${srcdir}/${subdir} -I${objdir}/${subdir}"
92 set asm-flags "-xarch=v9 -gstabs -I${srcdir}/${subdir} -I${objdir}/${subdir}"
95 set asm-arch xstormy16
96 set asm-flags "-gdwarf2 -I${srcdir}/${subdir} -I${objdir}/${subdir}"
100 set gdb_wrapper_initialized 1
107 if { "${asm-arch}" == "" } {
108 gdb_suppress_entire_file "Assembly source test -- not implemented for this target."
111 # On FreeBSD, crt1.o the final link will fail because of unresolved
112 # symbols. It turns out that libc.so references symbols that are
113 # normally provided by crt1.o, which isn't linked in since we specify
114 # -nostartfiles. Using -nostdlib doesn't help since target_compile
115 # automatically adds -lm. Linking statically avoids this mess.
116 if [istarget "*-*-freebsd*"] then {
117 set link-flags "-static"
120 # Watch out, we are invoking the assembler, but the testsuite sets multilib
121 # switches according to compiler syntax. If we pass these options straight
122 # to the assembler, they won't always make sense. If we don't pass them to
123 # the assembler, the final link will complain that the object files were
124 # built with different defaults. So no matter what we do, we lose. We may as
125 # well get out of this test sooner rather than later.
126 set dest [target_info name]
127 if [board_info $dest exists multilib_flags] {
128 set multilib_flags [board_info $dest multilib_flags]
129 if { "${multilib_flags}" != "" } {
130 gdb_suppress_entire_file "Assembly source test -- multilibs not supported by this test."
135 set testfile "asm-source"
136 set binfile ${objdir}/${subdir}/${testfile}
137 set srcfile1 asmsrc1.s
138 set srcfile2 asmsrc2.s
140 remote_exec build "rm -f ${subdir}/arch.inc"
141 remote_download host ${srcdir}/${subdir}/${asm-arch}.inc ${subdir}/arch.inc
143 if { "${asm-flags}" == "" } {
144 #set asm-flags "-Wa,-gstabs,-I${srcdir}/${subdir},-I${objdir}/${subdir}"
145 set asm-flags "-gstabs -I${srcdir}/${subdir} -I${objdir}/${subdir}"
148 if {[target_assemble ${srcdir}/${subdir}/${srcfile1} asmsrc1.o "${asm-flags}"] != ""} then {
149 gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
151 if {[target_assemble ${srcdir}/${subdir}/${srcfile2} asmsrc2.o "${asm-flags}"] != ""} then {
152 gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
155 set opts "debug ldflags=-nostartfiles"
156 foreach i ${link-flags} {
157 append opts " ldflags=$i"
159 if { [gdb_compile "asmsrc1.o asmsrc2.o" "${binfile}" executable $opts] != "" } {
160 gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
163 remote_exec build "mv asmsrc1.o asmsrc2.o ${objdir}/${subdir}"
167 gdb_reinitialize_dir $srcdir/$subdir
171 # Run to `main' where we begin our tests.
174 if ![runto_main] then {
178 # Execute the `f' command and see if the result includes source info.
179 gdb_test "f" "asmsrc1\[.\]s:29.*several_nops" "f at main"
181 # See if we properly `next' over a macro with several insns.
182 gdb_test "n" "33\[ \]*.*foo2" "next over macro"
184 # See if we can properly `step' into a subroutine call.
185 gdb_test "s" "8\[ \]*.*" "step into foo2"
187 # Test 'info target', and incidentally capture the entry point address.
189 send_gdb "info target\n"
191 -re "Symbols from .*asm-source.*Entry point: 0x(\[01232456789abcdefABCDEF\]+).*$gdb_prompt $" {
192 set entry_point $expect_out(1,string)
195 -re ".*$gdb_prompt $" {
199 fail "info target (timeout)"
203 # Capture the start symbol (may be '_start' or 'start')
205 send_gdb "info symbol 0x$entry_point\n"
207 -re "info symbol 0x$entry_point\[\r\n\]+(\[^\r\n\]*) in section .*$gdb_prompt $" {
208 # We match the echoed `info symbol' command here, to help us
209 # reliably identify the beginning of the start symbol in the
210 # command's output. You might think we could just use '^' to
211 # start matching at the beginning of the line, but
212 # unfortunately, in Expect, '^' matches the beginning of the
213 # input that hasn't been matched by any expect clause yet. If
214 # every expect clause consumes a complete line, along with its
215 # terminating CR/LF, this is equivalent to the beginning of a
216 # line. But expect clauses that end with `.*' will consume as
217 # much as happened to arrive from the TTY --- exactly where
218 # they leave you depends on inter-process timing. :(
219 set entry_symbol $expect_out(1,string)
222 -re ".*$gdb_prompt $" {
226 fail "info symbol (timeout)"
230 # Now try a 'list' from the other source file.
231 gdb_test "list $entry_symbol" ".*gdbasm_startup.*" "list"
233 # Now try a source file search
234 gdb_test "search A routine for foo2 to call" \
235 "40\[ \t\]+comment \"A routine for foo2 to call.\"" "search"
237 # See if `f' prints the right source file.
238 gdb_test "f" ".*asmsrc2\[.\]s:8.*" "f in foo2"
240 # `next' one insn (or macro) to set up our stackframe (for the following bt).
241 gdb_test "n" "12\[ \]*.*foo3" "n in foo2"
243 # See if a simple `bt' prints the right source files and
244 # doesn't fall off the stack.
247 "\#0.*foo2.*asmsrc2\[.\]s:12.*\#1.*main.*asmsrc1\[.\]s:33" \
250 # See if a capped `bt' prints the right source files.
251 gdb_test "bt 2" "\#0.*foo2.*asmsrc2\[.\]s:12.*\#1.*main.*asmsrc1\[.\]s:33.*" "bt 2 in foo2"
253 # Step into another subroutine which lives back in the first source file.
254 gdb_test "s" "" "s 2"
256 # Next over insns to set up the stack frame.
257 gdb_test "n" "" "n 2"
259 # Now see if a capped `bt' is correct.
260 gdb_test "bt 3" "\#0.*foo3.*asmsrc1\[.\]s:45.*\#1.*foo2.*asmsrc2\[.\]s:12.*\#2.*main.*asmsrc1\[.\]s:33.*" "bt 3 in foo3"
262 # Try 'info source' from asmsrc1.s
263 gdb_test "info source" \
264 "Current source file is .*asmsrc1.s.*Source language is asm.*" \
265 "info source asmsrc1.s"
267 # Try 'finishing' from foo3
268 gdb_test "finish" "Run till exit from.*\[\r\n\]13\[ \t\]+gdbasm_call foo3" \
271 # Try 'info source' from asmsrc2.s
272 gdb_test "info source" \
273 "Current source file is .*asmsrc2.s.*Source language is asm.*" \
274 "info source asmsrc2.s"
276 # Try 'info sources'. This can produce a lot of output on systems
277 # with dynamic linking, where the system's shared libc was compiled
278 # with debugging info; for example, on Linux, this produces 47kb of
279 # output. So we consume it as we go.
280 send_gdb "info sources\n"
284 -re "^\[^,\]*asmsrc1.s(, |\[\r\n\]+)" {
288 -re "^\[^,\]*asmsrc2.s(, |\[\r\n\]+)" {
295 -re "$gdb_prompt $" {
296 if {$seen_asmsrc_1 && $seen_asmsrc_2} {
303 fail "info sources (timeout)"
309 gdb_test "info line" \
310 "Line 13 of.*asmsrc2.s.*starts at.*<foo2+.*> and ends at.*<foo2+.*>." \
313 # Try 'nexting' over next call to foo3
314 gdb_test "next" "17\[ \t\]+gdbasm_leave" "next over foo3"
316 # Try 'return' from foo2
317 gdb_test "return" "\#0 main .*37\[ \t\]+gdbasm_exit0" "return from foo2" \
318 "Make (foo2|selected stack frame) return now\?.*" "y"
320 # Disassemble something, check the output
321 proc test_dis { command var } {
323 send_gdb "${command}\n"
325 -re "${var}.*:.*(Cannot access|Bad address)" {
326 # The "disassembler" was only accessing the local
327 # executable and that would cause attempts to disassemble
328 # variables to fail (memory not valid).
329 fail "${command} (memory read error)"
331 -re "${var}.*:.*${gdb_prompt}" {
335 fail "${command} (timeout)"
340 # See if we can look at a global variable, three ways
341 gdb_test "print globalvar" ".* = 11" "look at global variable"
342 test_dis "x/i &globalvar" "globalvar"
343 test_dis "disassem &globalvar &globalvar+1" "globalvar"
345 # See if we can look at a static variable, three ways
346 gdb_test "print staticvar" ".* = 5" "look at static variable"
347 test_dis "x/i &staticvar" "staticvar"
348 test_dis "disassem &staticvar &staticvar+1" "staticvar"
350 # See if we can look at a static function
351 gdb_test "disassem foostatic" ".*<foostatic\\+0>:.*End of assembler dump." \
352 "look at static function"
354 remote_exec build "rm -f ${subdir}/arch.inc"