1# Copyright 1998, 2000, 2001, 2002, 2003, 2004, 2007 2# Free Software Foundation, Inc. 3# 4# This program is free software; you can redistribute it and/or modify 5# it under the terms of the GNU General Public License as published by 6# the Free Software Foundation; either version 3 of the License, or 7# (at your option) any later version. 8# 9# This program is distributed in the hope that it will be useful, 10# but WITHOUT ANY WARRANTY; without even the implied warranty of 11# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12# GNU General Public License for more details. 13# 14# You should have received a copy of the GNU General Public License 15# along with this program. If not, see <http://www.gnu.org/licenses/>. 16# 17# Please email any bugs, comments, and/or additions to this file to: 18# bug-gdb@prep.ai.mit.edu 19# 20# This file was written by Kendra. 21 22if $tracelevel then { 23 strace $tracelevel 24} 25 26# 27# Test debugging assembly level programs. 28# This file uses asmsrc[12].s for input. 29# 30 31set prms_id 0 32set bug_id 0 33 34set asm-arch "" 35set asm-note "empty" 36set asm-flags "" 37set link-flags "-e _start" 38set debug-flags "" 39 40switch -glob -- [istarget] { 41 "alpha*-*-*" { 42 set asm-arch alpha 43 # ??? Won't work with ecoff systems like Tru64, but then we also 44 # don't have any other -g flag that creates mdebug output. 45 set asm-flags "-no-mdebug -I${srcdir}/${subdir} -I${objdir}/${subdir}" 46 set debug-flags "-gdwarf-2" 47 } 48 "*arm-*-*" { 49 set asm-arch arm 50 } 51 "xscale-*-*" { 52 set asm-arch arm 53 } 54 "frv-*-*" { 55 set asm-arch frv 56 } 57 "s390-*-*" { 58 set asm-arch s390 59 } 60 "s390x-*-*" { 61 set asm-arch s390x 62 } 63 "x86_64-*-*" { 64 set asm-arch x86_64 65 set debug-flags "-gdwarf-2" 66 } 67 "i\[3456\]86-*-*" { 68 set asm-arch i386 69 } 70 "m32r*-linux*" { 71 set asm-arch m32r-linux 72 } 73 "m32c-*-*" { 74 set asm-arch m32c 75 } 76 "m32r*-*" { 77 set asm-arch m32r 78 append link-flags "--whole-archive -lgloss --no-whole-archive" 79 } 80 "m6811-*-*" { 81 set asm-arch m68hc11 82 set asm-flags "-mshort-double -m68hc11 --no-warn -I${srcdir}/${subdir} -I${objdir}/${subdir}" 83 set debug-flags "-gdwarf-2" 84 # This asm test is specific and uses the linker directly. 85 # We must not use the target board linker script defined for other 86 # tests. Remove it and restore it later on. 87 set board [target_info name] 88 set old_ldscript [board_info $board ldscript] 89 unset_board_info "ldscript" 90 } 91 "m6812-*-*" { 92 set asm-arch m68hc11 93 set asm-flags "-mshort-double -m68hc12 --no-warn -I${srcdir}/${subdir} -I${objdir}/${subdir}" 94 set debug-flags "-gdwarf-2" 95 # This asm test is specific and uses the linker directly. 96 # We must not use the target board linker script defined for other 97 # tests. Remove it and restore it later on. 98 set board [target_info name] 99 set old_ldscript [board_info $board ldscript] 100 set_board_info ldscript "" 101 } 102 "mips*-*" { 103 set asm-arch mips 104 } 105 "powerpc*-*" { 106 set asm-arch powerpc 107 } 108 "sh*-*-*" { 109 set asm-arch sh 110 set debug-flags "-gdwarf-2" 111 } 112 "sparc-*-*" { 113 set asm-arch sparc 114 } 115 "sparc64-*-*" { 116 set asm-arch sparc64 117 set asm-flags "-xarch=v9 -I${srcdir}/${subdir} -I${objdir}/${subdir}" 118 set debug-flags "-gdwarf-2" 119 } 120 "spu*-*-*" { 121 set asm-arch spu 122 set asm-flags "-I${srcdir}/${subdir} -I${objdir}/${subdir} --no-warn" 123 set debug-flags "-gdwarf-2" 124 } 125 "xstormy16-*-*" { 126 set asm-arch xstormy16 127 set debug-flags "-gdwarf-2" 128 } 129 "v850-*-*" { 130 set asm-arch v850 131 set gdb_wrapper_initialized 1 132 } 133 "m68k-*-*" { 134 set asm-arch m68k 135 } 136 "ia64-*-*" { 137 set asm-arch ia64 138 set debug-flags "-gdwarf-2" 139 } 140 "iq2000-*-*" { 141 set asm-arch iq2000 142 } 143 "hppa*-linux-*" { 144 set asm-arch pa 145 set debug-flags "-gdwarf-2" 146 } 147 "hppa-*-openbsd*" { 148 set asm-arch pa 149 set debug-flags "-gdwarf-2" 150 } 151 "hppa64-*-hpux*" { 152 set asm-arch pa64 153 set debug-flags "-gdwarf-2" 154 } 155 "h83*-*" { 156 set asm-arch h8300 157 set debug-flags "-gdwarf-2" 158 } 159} 160 161if { "${asm-arch}" == "" } { 162 untested asm-source.exp 163 return -1 164} 165 166# On NetBSD/ELF we need a special NetBSD-identifying note section. 167if { [istarget "*-*-netbsdelf*"] 168 || [istarget "alpha-*-netbsd*"] 169 || [istarget "mips*-*-netbsd*"] 170 || [istarget "powerpc-*-netbsd*"] 171 || [istarget "x86_64-*-netbsd*"] } then { 172 set asm-note "netbsd" 173} 174 175# On OpenBSD/ELF we need a similar note section. We make no attempt 176# of handing a.out here since most OpenBSD/a.out systems use a rather 177# outdated assembler that doesn't assemble this test's code anyway. 178if { [istarget "*-*-openbsd*"] } then { 179 set asm-note "openbsd" 180} 181 182# Watch out, we are invoking the assembler, but the testsuite sets multilib 183# switches according to compiler syntax. If we pass these options straight 184# to the assembler, they won't always make sense. If we don't pass them to 185# the assembler, the final link will complain that the object files were 186# built with different defaults. So no matter what we do, we lose. We may as 187# well get out of this test sooner rather than later. 188set dest [target_info name] 189if [board_info $dest exists multilib_flags] { 190 set multilib_flags [board_info $dest multilib_flags] 191 if { "${multilib_flags}" != "" } { 192 untested asm-source.exp 193 return -1 194 return; 195 } 196} 197 198set testfile "asm-source" 199set binfile ${objdir}/${subdir}/${testfile} 200set srcfile1 asmsrc1.s 201set srcfile2 asmsrc2.s 202 203remote_exec build "rm -f ${subdir}/arch.inc" 204remote_download host ${srcdir}/${subdir}/${asm-arch}.inc ${subdir}/arch.inc 205remote_exec build "rm -f ${subdir}/note.inc" 206remote_download host ${srcdir}/${subdir}/${asm-note}.inc ${subdir}/note.inc 207 208if { [string equal ${asm-flags} ""] } { 209 set asm-flags "-I${srcdir}/${subdir} -I${objdir}/${subdir}" 210} 211 212if { [string equal ${debug-flags} ""] } { 213 set debug-flags "-gstabs" 214} 215 216# Allow the target board to override the debug flags. 217if { [board_info $dest exists debug_flags] } then { 218 set debug-flags "[board_info $dest debug_flags]" 219} 220 221# The debug flags are in the format that gcc expects: 222# "-gdwarf-2", "-gstabs+", or "-gstabs". To be compatible with the 223# other languages in the test suite, we accept this input format. 224# So the user can run the test suite with: 225# 226# runtest --target_board unix/gdb:debug_flags=-gdwarf-2 227# make check RUNTESTFLAGS="--target_board unix/gdb:debug_flags=-gdwarf-2" 228# 229# However, the GNU assembler has different spellings than gcc. 230# So I adjust the debug flags here. 231 232# The GNU assembler spells "dwarf-2" as "dwarf2". 233regsub "--" "-gdwarf-2" "${debug-flags}" "-gdwarf2" debug-flags 234 235# The GNU assembler before 2.15 did not support "stabs+". 236regsub "--" "-gstabs\[+\]" "${debug-flags}" "-gstabs" debug-flags 237 238# The GNU assembler does not support level options like "-g2" or "-g3". 239regsub "--" "-g\[0-9\]" "${debug-flags}" "" debug-flags 240 241if {[target_assemble ${srcdir}/${subdir}/${srcfile1} asmsrc1.o "${asm-flags} ${debug-flags}"] != ""} then { 242 untested asm-source.exp 243 return -1 244} 245if {[target_assemble ${srcdir}/${subdir}/${srcfile2} asmsrc2.o "${asm-flags} ${debug-flags}"] != ""} then { 246 untested asm-source.exp 247 return -1 248} 249 250# We deliberately don't use gdb_compile here to link together the 251# assembled object files. Using gdb_compile, and therefore the C 252# compiler, is conceptually wrong, since we're testing raw assembler 253# code here that provides its own startup code. Using target_link 254# also avoids a lot of problems on many systems, most notably on 255# *-*-*bsd* and *-*-solaris2*. 256if {[target_link "asmsrc1.o asmsrc2.o" "${binfile}" ${link-flags}] != "" } then { 257 untested asm-source.exp 258 return -1 259} 260 261# Restore the target board linker script for HC11/HC12. 262if { [istarget "m6811-*-*"] || [istarget "m6812-*-*"] } { 263 set_board_info ldscript $old_ldscript 264} 265 266remote_exec build "mv asmsrc1.o asmsrc2.o ${objdir}/${subdir}" 267 268 269gdb_start 270gdb_reinitialize_dir $srcdir/$subdir 271gdb_load ${binfile} 272 273# 274# Run to `main' where we begin our tests. 275# 276 277if ![runto_main] then { 278 gdb_suppress_tests 279} 280 281# Execute the `f' command and see if the result includes source info. 282gdb_test "f" "asmsrc1\[.\]s:29.*several_nops" "f at main" 283 284# See if we properly `next' over a macro with several insns. 285gdb_test "n" "33\[ \]*.*foo2" "next over macro" 286 287# See if we can properly `step' into a subroutine call. 288gdb_test "s" "8\[ \]*.*" "step into foo2" 289 290# Test 'info target', and incidentally capture the entry point address. 291set entry_point 0 292send_gdb "info target\n" 293gdb_expect { 294 -re "Symbols from .*asm-source.*Entry point: 0x(\[01232456789abcdefABCDEF\]+).*$gdb_prompt $" { 295 set entry_point $expect_out(1,string) 296 pass "info target" 297 } 298 -re ".*$gdb_prompt $" { 299 fail "info target" 300 } 301 timeout { 302 fail "info target (timeout)" 303 } 304} 305 306# Capture the start symbol (may be '_start' or 'start') 307set entry_symbol "" 308send_gdb "info symbol 0x$entry_point\n" 309gdb_expect { 310 -re "info symbol 0x$entry_point\[\r\n\]+(\[^\r\n\]*) in section .*$gdb_prompt $" { 311 # We match the echoed `info symbol' command here, to help us 312 # reliably identify the beginning of the start symbol in the 313 # command's output. You might think we could just use '^' to 314 # start matching at the beginning of the line, but 315 # unfortunately, in Expect, '^' matches the beginning of the 316 # input that hasn't been matched by any expect clause yet. If 317 # every expect clause consumes a complete line, along with its 318 # terminating CR/LF, this is equivalent to the beginning of a 319 # line. But expect clauses that end with `.*' will consume as 320 # much as happened to arrive from the TTY --- exactly where 321 # they leave you depends on inter-process timing. :( 322 set entry_symbol $expect_out(1,string) 323 pass "info symbol" 324 } 325 -re ".*$gdb_prompt $" { 326 fail "info symbol" 327 } 328 timeout { 329 fail "info symbol (timeout)" 330 } 331} 332 333# Now try a 'list' from the other source file. 334gdb_test "list $entry_symbol" ".*gdbasm_startup.*" "list" 335 336# Now try a source file search 337gdb_test "search A routine for foo2 to call" \ 338 "40\[ \t\]+comment \"A routine for foo2 to call.\"" "search" 339 340# See if `f' prints the right source file. 341gdb_test "f" ".*asmsrc2\[.\]s:8.*" "f in foo2" 342 343# `next' one insn (or macro) to set up our stackframe (for the following bt). 344gdb_test "n" "12\[ \]*.*foo3" "n in foo2" 345 346# See if a simple `bt' prints the right source files and 347# doesn't fall off the stack. 348 349gdb_test "bt 10" \ 350 "\#0.*foo2.*asmsrc2\[.\]s:12.*\#1.*main.*asmsrc1\[.\]s:33" \ 351 "bt ALL in foo2" 352 353# See if a capped `bt' prints the right source files. 354gdb_test "bt 2" "\#0.*foo2.*asmsrc2\[.\]s:12.*\#1.*main.*asmsrc1\[.\]s:33.*" "bt 2 in foo2" 355 356# Step into another subroutine which lives back in the first source file. 357gdb_test "s" "" "s 2" 358 359# Next over insns to set up the stack frame. 360gdb_test "n" "" "n 2" 361 362# Now see if a capped `bt' is correct. 363gdb_test "bt 3" "\#0.*foo3.*asmsrc1\[.\]s:45.*\#1.*foo2.*asmsrc2\[.\]s:12.*\#2.*main.*asmsrc1\[.\]s:33.*" "bt 3 in foo3" 364 365# Try 'info source' from asmsrc1.s 366gdb_test "info source" \ 367 "Current source file is .*asmsrc1.s.*Source language is asm.*" \ 368 "info source asmsrc1.s" 369 370# Try 'finishing' from foo3 371gdb_test "finish" "Run till exit from.*\[\r\n\]13\[ \t\]+gdbasm_call foo3" \ 372 "finish from foo3" 373 374# Try 'info source' from asmsrc2.s 375gdb_test "info source" \ 376 "Current source file is .*asmsrc2.s.*Source language is asm.*" \ 377 "info source asmsrc2.s" 378 379# Try 'info sources'. This can produce a lot of output on systems 380# with dynamic linking, where the system's shared libc was compiled 381# with debugging info; for example, on Linux, this produces 47kb of 382# output. So we consume it as we go. 383send_gdb "info sources\n" 384set seen_asmsrc_1 0 385set seen_asmsrc_2 0 386gdb_expect { 387 -re "^\[^,\]*asmsrc1.s(, |\[\r\n\]+)" { 388 set seen_asmsrc_1 1 389 exp_continue 390 } 391 -re "^\[^,\]*asmsrc2.s(, |\[\r\n\]+)" { 392 set seen_asmsrc_2 1 393 exp_continue 394 } 395 -re ", " { 396 exp_continue 397 } 398 -re "$gdb_prompt $" { 399 if {$seen_asmsrc_1 && $seen_asmsrc_2} { 400 pass "info sources" 401 } else { 402 fail "info sources" 403 } 404 } 405 timeout { 406 fail "info sources (timeout)" 407 } 408} 409 410 411# Try 'info line' 412gdb_test "info line" \ 413 "Line 13 of.*asmsrc2.s.*starts at.*<foo2+.*> and ends at.*<foo2+.*>." \ 414 "info line" 415 416# Try 'nexting' over next call to foo3 417gdb_test "next" "17\[ \t\]+gdbasm_leave" "next over foo3" 418 419# Try 'return' from foo2 420gdb_test "return" "\#0 main .*37\[ \t\]+gdbasm_exit0" "return from foo2" \ 421 "Make (foo2|selected stack frame) return now\?.*" "y" 422 423# Disassemble something, check the output 424proc test_dis { command var } { 425 global gdb_prompt 426 send_gdb "${command}\n" 427 gdb_expect { 428 -re "${var}.*:.*(Cannot access|Bad address)" { 429 # The "disassembler" was only accessing the local 430 # executable and that would cause attempts to disassemble 431 # variables to fail (memory not valid). 432 fail "${command} (memory read error)" 433 } 434 -re "${var}.*:.*${gdb_prompt}" { 435 pass "${command}" 436 } 437 timeout { 438 fail "${command} (timeout)" 439 } 440 } 441} 442 443# See if we can look at a global variable, three ways 444gdb_test "print globalvar" ".* = 11" "look at global variable" 445test_dis "x/i &globalvar" "globalvar" 446test_dis "disassem &globalvar &globalvar+1" "globalvar" 447 448# See if we can look at a static variable, three ways 449gdb_test "print staticvar" ".* = 5" "look at static variable" 450test_dis "x/i &staticvar" "staticvar" 451test_dis "disassem &staticvar &staticvar+1" "staticvar" 452 453# See if we can look at a static function 454gdb_test "disassem foostatic" ".*<foostatic\\+0>:.*End of assembler dump." \ 455 "look at static function" 456 457remote_exec build "rm -f ${subdir}/arch.inc" 458remote_exec build "rm -f ${subdir}/note.inc" 459