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"
40 switch -glob -- [istarget] {
43 # ??? Won't work with ecoff systems like Tru64, but then we also
44 # don't have any other -g flag that creates mdebug output.
45 set asm-flags "-no-mdebug -I${srcdir}/${subdir} -I${objdir}/${subdir}"
46 set debug-flags "-gdwarf-2"
68 set asm-flags "-I${srcdir}/${subdir} -I${objdir}/${subdir}"
69 set debug-flags "-gdwarf-2"
76 append link-flags "--whole-archive -lgloss --no-whole-archive"
80 set asm-flags "-mshort-double -m68hc11 -gdwarf-2 --no-warn -I${srcdir}/${subdir} -I${objdir}/${subdir}"
84 set asm-flags "-mshort-double -m68hc12 -gdwarf-2 --no-warn -I${srcdir}/${subdir} -I${objdir}/${subdir}"
94 set asm-flags "-I${srcdir}/${subdir} -I${objdir}/${subdir}"
95 set debug-flags "-gdwarf-2"
102 set asm-flags "-xarch=v9 -I${srcdir}/${subdir} -I${objdir}/${subdir}"
103 set debug-flags "-gdwarf-2"
106 set asm-arch xstormy16
107 set asm-flags "-I${srcdir}/${subdir} -I${objdir}/${subdir}"
108 set debug-flags "-gdwarf-2"
112 set gdb_wrapper_initialized 1
119 set asm-flags "-I${srcdir}/${subdir} -I${objdir}/${subdir}"
120 set debug-flags "-gdwarf-2"
124 set asm-flags "-I${srcdir}/${subdir} -I${objdir}/${subdir}"
125 set debug-flags "-gdwarf-2"
129 if { "${asm-arch}" == "" } {
130 gdb_suppress_entire_file "Assembly source test -- not implemented for this target."
133 # On NetBSD/ELF we need a special NetBSD-identifying note section.
134 if { [istarget "*-*-netbsdelf*"]
135 || [istarget "x86_64-*-netbsd*"] } then {
136 set asm-note "netbsd"
139 # On OpenBSD/ELF we need a similar note section. We make no attempt
140 # of handing a.out here since most OpenBSD/a.out systems use a rather
141 # outdated assembler that doesn't assemble this test's code anyway.
142 if { [istarget "*-*-openbsd*"] } then {
143 set asm-note "openbsd"
146 # Watch out, we are invoking the assembler, but the testsuite sets multilib
147 # switches according to compiler syntax. If we pass these options straight
148 # to the assembler, they won't always make sense. If we don't pass them to
149 # the assembler, the final link will complain that the object files were
150 # built with different defaults. So no matter what we do, we lose. We may as
151 # well get out of this test sooner rather than later.
152 set dest [target_info name]
153 if [board_info $dest exists multilib_flags] {
154 set multilib_flags [board_info $dest multilib_flags]
155 if { "${multilib_flags}" != "" } {
156 gdb_suppress_entire_file "Assembly source test -- multilibs not supported by this test."
161 set testfile "asm-source"
162 set binfile ${objdir}/${subdir}/${testfile}
163 set srcfile1 asmsrc1.s
164 set srcfile2 asmsrc2.s
166 remote_exec build "rm -f ${subdir}/arch.inc"
167 remote_download host ${srcdir}/${subdir}/${asm-arch}.inc ${subdir}/arch.inc
168 remote_exec build "rm -f ${subdir}/note.inc"
169 remote_download host ${srcdir}/${subdir}/${asm-note}.inc ${subdir}/note.inc
171 if { "${asm-flags}" == "" } {
172 set asm-flags "-I${srcdir}/${subdir} -I${objdir}/${subdir}"
173 set debug-flags "-gstabs"
176 # Allow the target board to override the debug flags.
177 if { [board_info $dest exists debug_flags] } then {
178 set debug-flags "[board_info $dest debug_flags]"
181 # The debug flags are in the format that gcc expects:
182 # "-gdwarf-2", "-gstabs+", or "-gstabs". To be compatible with the
183 # other languages in the test suite, we accept this input format.
184 # So the user can run the test suite with:
186 # runtest --target_board unix/gdb:debug_flags=-gdwarf-2
187 # make check RUNTESTFLAGS="--target_board unix/gdb:debug_flags=-gdwarf-2"
189 # However, the GNU assembler has different spellings than gcc.
190 # So I adjust the debug flags here.
192 # The GNU assembler spells "dwarf-2" as "dwarf2".
193 regsub "--" "-gdwarf-2" "${debug-flags}" "-gdwarf2" debug-flags
195 # The GNU assembler before 2.15 did not support "stabs+".
196 regsub "--" "-gstabs\[+\]" "${debug-flags}" "-gstabs" debug-flags
198 # The GNU assembler does not support level options like "-g2" or "-g3".
199 regsub "--" "-g\[0-9\]" "${debug-flags}" "" debug-flags
201 if {[target_assemble ${srcdir}/${subdir}/${srcfile1} asmsrc1.o "${asm-flags} ${debug-flags}"] != ""} then {
202 gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
204 if {[target_assemble ${srcdir}/${subdir}/${srcfile2} asmsrc2.o "${asm-flags} ${debug-flags}"] != ""} then {
205 gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
208 # We deliberately don't use gdb_compile here to link together the
209 # assembled object files. Using gdb_compile, and therefore the C
210 # compiler, is conceptually wrong, since we're testing raw assembler
211 # code here that provides its own startup code. Using target_link
212 # also avoids a lot of problems on many systems, most notably on
213 # *-*-*bsd* and *-*-solaris2*.
214 if {[target_link "asmsrc1.o asmsrc2.o" "${binfile}" ${link-flags}] != "" } then {
215 gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
218 remote_exec build "mv asmsrc1.o asmsrc2.o ${objdir}/${subdir}"
222 gdb_reinitialize_dir $srcdir/$subdir
226 # Run to `main' where we begin our tests.
229 if ![runto_main] then {
233 # Execute the `f' command and see if the result includes source info.
234 gdb_test "f" "asmsrc1\[.\]s:29.*several_nops" "f at main"
236 # See if we properly `next' over a macro with several insns.
237 gdb_test "n" "33\[ \]*.*foo2" "next over macro"
239 # See if we can properly `step' into a subroutine call.
240 gdb_test "s" "8\[ \]*.*" "step into foo2"
242 # Test 'info target', and incidentally capture the entry point address.
244 send_gdb "info target\n"
246 -re "Symbols from .*asm-source.*Entry point: 0x(\[01232456789abcdefABCDEF\]+).*$gdb_prompt $" {
247 set entry_point $expect_out(1,string)
250 -re ".*$gdb_prompt $" {
254 fail "info target (timeout)"
258 # Capture the start symbol (may be '_start' or 'start')
260 send_gdb "info symbol 0x$entry_point\n"
262 -re "info symbol 0x$entry_point\[\r\n\]+(\[^\r\n\]*) in section .*$gdb_prompt $" {
263 # We match the echoed `info symbol' command here, to help us
264 # reliably identify the beginning of the start symbol in the
265 # command's output. You might think we could just use '^' to
266 # start matching at the beginning of the line, but
267 # unfortunately, in Expect, '^' matches the beginning of the
268 # input that hasn't been matched by any expect clause yet. If
269 # every expect clause consumes a complete line, along with its
270 # terminating CR/LF, this is equivalent to the beginning of a
271 # line. But expect clauses that end with `.*' will consume as
272 # much as happened to arrive from the TTY --- exactly where
273 # they leave you depends on inter-process timing. :(
274 set entry_symbol $expect_out(1,string)
277 -re ".*$gdb_prompt $" {
281 fail "info symbol (timeout)"
285 # Now try a 'list' from the other source file.
286 gdb_test "list $entry_symbol" ".*gdbasm_startup.*" "list"
288 # Now try a source file search
289 gdb_test "search A routine for foo2 to call" \
290 "40\[ \t\]+comment \"A routine for foo2 to call.\"" "search"
292 # See if `f' prints the right source file.
293 gdb_test "f" ".*asmsrc2\[.\]s:8.*" "f in foo2"
295 # `next' one insn (or macro) to set up our stackframe (for the following bt).
296 gdb_test "n" "12\[ \]*.*foo3" "n in foo2"
298 # See if a simple `bt' prints the right source files and
299 # doesn't fall off the stack.
302 "\#0.*foo2.*asmsrc2\[.\]s:12.*\#1.*main.*asmsrc1\[.\]s:33" \
305 # See if a capped `bt' prints the right source files.
306 gdb_test "bt 2" "\#0.*foo2.*asmsrc2\[.\]s:12.*\#1.*main.*asmsrc1\[.\]s:33.*" "bt 2 in foo2"
308 # Step into another subroutine which lives back in the first source file.
309 gdb_test "s" "" "s 2"
311 # Next over insns to set up the stack frame.
312 gdb_test "n" "" "n 2"
314 # Now see if a capped `bt' is correct.
315 gdb_test "bt 3" "\#0.*foo3.*asmsrc1\[.\]s:45.*\#1.*foo2.*asmsrc2\[.\]s:12.*\#2.*main.*asmsrc1\[.\]s:33.*" "bt 3 in foo3"
317 # Try 'info source' from asmsrc1.s
318 gdb_test "info source" \
319 "Current source file is .*asmsrc1.s.*Source language is asm.*" \
320 "info source asmsrc1.s"
322 # Try 'finishing' from foo3
323 gdb_test "finish" "Run till exit from.*\[\r\n\]13\[ \t\]+gdbasm_call foo3" \
326 # Try 'info source' from asmsrc2.s
327 gdb_test "info source" \
328 "Current source file is .*asmsrc2.s.*Source language is asm.*" \
329 "info source asmsrc2.s"
331 # Try 'info sources'. This can produce a lot of output on systems
332 # with dynamic linking, where the system's shared libc was compiled
333 # with debugging info; for example, on Linux, this produces 47kb of
334 # output. So we consume it as we go.
335 send_gdb "info sources\n"
339 -re "^\[^,\]*asmsrc1.s(, |\[\r\n\]+)" {
343 -re "^\[^,\]*asmsrc2.s(, |\[\r\n\]+)" {
350 -re "$gdb_prompt $" {
351 if {$seen_asmsrc_1 && $seen_asmsrc_2} {
358 fail "info sources (timeout)"
364 gdb_test "info line" \
365 "Line 13 of.*asmsrc2.s.*starts at.*<foo2+.*> and ends at.*<foo2+.*>." \
368 # Try 'nexting' over next call to foo3
369 gdb_test "next" "17\[ \t\]+gdbasm_leave" "next over foo3"
371 # Try 'return' from foo2
372 gdb_test "return" "\#0 main .*37\[ \t\]+gdbasm_exit0" "return from foo2" \
373 "Make (foo2|selected stack frame) return now\?.*" "y"
375 # Disassemble something, check the output
376 proc test_dis { command var } {
378 send_gdb "${command}\n"
380 -re "${var}.*:.*(Cannot access|Bad address)" {
381 # The "disassembler" was only accessing the local
382 # executable and that would cause attempts to disassemble
383 # variables to fail (memory not valid).
384 fail "${command} (memory read error)"
386 -re "${var}.*:.*${gdb_prompt}" {
390 fail "${command} (timeout)"
395 # See if we can look at a global variable, three ways
396 gdb_test "print globalvar" ".* = 11" "look at global variable"
397 test_dis "x/i &globalvar" "globalvar"
398 test_dis "disassem &globalvar &globalvar+1" "globalvar"
400 # See if we can look at a static variable, three ways
401 gdb_test "print staticvar" ".* = 5" "look at static variable"
402 test_dis "x/i &staticvar" "staticvar"
403 test_dis "disassem &staticvar &staticvar+1" "staticvar"
405 # See if we can look at a static function
406 gdb_test "disassem foostatic" ".*<foostatic\\+0>:.*End of assembler dump." \
407 "look at static function"
409 remote_exec build "rm -f ${subdir}/arch.inc"
410 remote_exec build "rm -f ${subdir}/note.inc"