# Copyright 1998, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
# Please email any bugs, comments, and/or additions to this file to:
# bug-gdb@prep.ai.mit.edu
#
# This file was written by Kendra.
if $tracelevel then {
strace $tracelevel
}
#
# Test debugging assembly level programs.
# This file uses asmsrc[12].s for input.
#
set prms_id 0
set bug_id 0
set asm-arch ""
set asm-note "empty"
set asm-flags ""
set link-flags "--entry _start"
set debug-flags ""
switch -glob -- [istarget] {
"alpha*-*-*" {
set asm-arch alpha
# ??? Won't work with ecoff systems like Tru64, but then we also
# don't have any other -g flag that creates mdebug output.
set asm-flags "-no-mdebug -I${srcdir}/${subdir} -I${objdir}/${subdir}"
set debug-flags "-gdwarf-2"
}
"*arm-*-*" {
set asm-arch arm
}
"xscale-*-*" {
set asm-arch arm
}
"d10v-*-*" {
set asm-arch d10v
}
"frv-*-*" {
set asm-arch frv
}
"s390-*-*" {
set asm-arch s390
}
"s390x-*-*" {
set asm-arch s390x
}
"x86_64-*-*" {
set asm-arch x86_64
set asm-flags "-I${srcdir}/${subdir} -I${objdir}/${subdir}"
set debug-flags "-gdwarf-2"
}
"i\[3456\]86-*-*" {
set asm-arch i386
}
"m32r*-linux*" {
set asm-arch m32r-linux
}
"m32r*-*" {
set asm-arch m32r
append link-flags "--whole-archive -lgloss --no-whole-archive"
}
"m6811-*-*" {
set asm-arch m68hc11
set asm-flags "-mshort-double -m68hc11 -gdwarf-2 --no-warn -I${srcdir}/${subdir} -I${objdir}/${subdir}"
}
"m6812-*-*" {
set asm-arch m68hc11
set asm-flags "-mshort-double -m68hc12 -gdwarf-2 --no-warn -I${srcdir}/${subdir} -I${objdir}/${subdir}"
}
"mips*-*" {
set asm-arch mips
}
"powerpc*-*" {
set asm-arch powerpc
}
"*-apple-darwin*" {
set asm-arch ""
}
"sh*-*-*" {
set asm-arch sh
set asm-flags "-I${srcdir}/${subdir} -I${objdir}/${subdir}"
set debug-flags "-gdwarf-2"
}
"sparc-*-*" {
set asm-arch sparc
}
"sparc64-*-*" {
set asm-arch sparc64
set asm-flags "-xarch=v9 -I${srcdir}/${subdir} -I${objdir}/${subdir}"
set debug-flags "-gdwarf-2"
}
"xstormy16-*-*" {
set asm-arch xstormy16
set asm-flags "-I${srcdir}/${subdir} -I${objdir}/${subdir}"
set debug-flags "-gdwarf-2"
}
"v850-*-*" {
set asm-arch v850
set gdb_wrapper_initialized 1
}
"m68k-*-*" {
set asm-arch m68k
}
"ia64-*-*" {
set asm-arch ia64
set asm-flags "-I${srcdir}/${subdir} -I${objdir}/${subdir}"
set debug-flags "-gdwarf-2"
}
"iq2000-*-*" {
set asm-arch iq2000
}
"hppa*-linux-*" {
set asm-arch pa
set asm-flags "-I${srcdir}/${subdir} -I${objdir}/${subdir}"
set debug-flags "-gdwarf-2"
}
"h83*-*" {
set asm-arch h8300
set asm-flags "-gdwarf2 -I${srcdir}/${subdir} -I${objdir}/${subdir}"
}
}
if { "${asm-arch}" == "" } {
gdb_suppress_entire_file "Assembly source test -- not implemented for this target."
return
}
# APPLE LOCAL: Skip on Darwin systems. Our assembler doesn't support
# all of the directives used in this directory, at the very least.
if { [istarget "*-apple-darwin*"] } then {
return
gdb_suppress_entire_file "Assembly source test -- not implemented for this target."
}
# On NetBSD/ELF we need a special NetBSD-identifying note section.
if { [istarget "*-*-netbsdelf*"]
|| [istarget "mips*-*-netbsd*"]
|| [istarget "x86_64-*-netbsd*"] } then {
set asm-note "netbsd"
}
# On OpenBSD/ELF we need a similar note section. We make no attempt
# of handing a.out here since most OpenBSD/a.out systems use a rather
# outdated assembler that doesn't assemble this test's code anyway.
if { [istarget "*-*-openbsd*"] } then {
set asm-note "openbsd"
}
# Watch out, we are invoking the assembler, but the testsuite sets multilib
# switches according to compiler syntax. If we pass these options straight
# to the assembler, they won't always make sense. If we don't pass them to
# the assembler, the final link will complain that the object files were
# built with different defaults. So no matter what we do, we lose. We may as
# well get out of this test sooner rather than later.
set dest [target_info name]
if [board_info $dest exists multilib_flags] {
set multilib_flags [board_info $dest multilib_flags]
if { "${multilib_flags}" != "" } {
gdb_suppress_entire_file "Assembly source test -- multilibs not supported by this test."
}
}
set testfile "asm-source"
set binfile ${objdir}/${subdir}/${testfile}
set srcfile1 asmsrc1.s
set srcfile2 asmsrc2.s
remote_exec build "rm -f ${subdir}/arch.inc"
remote_download host ${srcdir}/${subdir}/${asm-arch}.inc ${subdir}/arch.inc
remote_exec build "rm -f ${subdir}/note.inc"
remote_download host ${srcdir}/${subdir}/${asm-note}.inc ${subdir}/note.inc
if { "${asm-flags}" == "" } {
set asm-flags "-I${srcdir}/${subdir} -I${objdir}/${subdir}"
set debug-flags "-gstabs"
}
# Allow the target board to override the debug flags.
if { [board_info $dest exists debug_flags] } then {
set debug-flags "[board_info $dest debug_flags]"
}
# The debug flags are in the format that gcc expects:
# "-gdwarf-2", "-gstabs+", or "-gstabs". To be compatible with the
# other languages in the test suite, we accept this input format.
# So the user can run the test suite with:
#
# runtest --target_board unix/gdb:debug_flags=-gdwarf-2
# make check RUNTESTFLAGS="--target_board unix/gdb:debug_flags=-gdwarf-2"
#
# However, the GNU assembler has different spellings than gcc.
# So I adjust the debug flags here.
# The GNU assembler spells "dwarf-2" as "dwarf2".
regsub "--" "-gdwarf-2" "${debug-flags}" "-gdwarf2" debug-flags
# The GNU assembler before 2.15 did not support "stabs+".
regsub "--" "-gstabs\[+\]" "${debug-flags}" "-gstabs" debug-flags
# The GNU assembler does not support level options like "-g2" or "-g3".
regsub "--" "-g\[0-9\]" "${debug-flags}" "" debug-flags
if {[target_assemble ${srcdir}/${subdir}/${srcfile1} asmsrc1.o "${asm-flags} ${debug-flags}"] != ""} then {
gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
}
if {[target_assemble ${srcdir}/${subdir}/${srcfile2} asmsrc2.o "${asm-flags} ${debug-flags}"] != ""} then {
gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
}
# We deliberately don't use gdb_compile here to link together the
# assembled object files. Using gdb_compile, and therefore the C
# compiler, is conceptually wrong, since we're testing raw assembler
# code here that provides its own startup code. Using target_link
# also avoids a lot of problems on many systems, most notably on
# *-*-*bsd* and *-*-solaris2*.
if {[target_link "asmsrc1.o asmsrc2.o" "${binfile}" ${link-flags}] != "" } then {
gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
}
remote_exec build "mv asmsrc1.o asmsrc2.o ${objdir}/${subdir}"
gdb_start
gdb_reinitialize_dir $srcdir/$subdir
gdb_load ${binfile}
#
# Run to `main' where we begin our tests.
#
if ![runto_main] then {
gdb_suppress_tests
}
# Execute the `f' command and see if the result includes source info.
gdb_test "f" "asmsrc1\[.\]s:29.*several_nops" "f at main"
# See if we properly `next' over a macro with several insns.
gdb_test "n" "33\[ \]*.*foo2" "next over macro"
# See if we can properly `step' into a subroutine call.
gdb_test "s" "8\[ \]*.*" "step into foo2"
# Test 'info target', and incidentally capture the entry point address.
set entry_point 0
send_gdb "info target\n"
gdb_expect {
-re "Symbols from .*asm-source.*Entry point: 0x(\[01232456789abcdefABCDEF\]+).*$gdb_prompt $" {
set entry_point $expect_out(1,string)
pass "info target"
}
-re ".*$gdb_prompt $" {
fail "info target"
}
timeout {
fail "info target (timeout)"
}
}
# Capture the start symbol (may be '_start' or 'start')
set entry_symbol ""
send_gdb "info symbol 0x$entry_point\n"
gdb_expect {
-re "info symbol 0x$entry_point\[\r\n\]+(\[^\r\n\]*) in section .*$gdb_prompt $" {
# We match the echoed `info symbol' command here, to help us
# reliably identify the beginning of the start symbol in the
# command's output. You might think we could just use '^' to
# start matching at the beginning of the line, but
# unfortunately, in Expect, '^' matches the beginning of the
# input that hasn't been matched by any expect clause yet. If
# every expect clause consumes a complete line, along with its
# terminating CR/LF, this is equivalent to the beginning of a
# line. But expect clauses that end with `.*' will consume as
# much as happened to arrive from the TTY --- exactly where
# they leave you depends on inter-process timing. :(
set entry_symbol $expect_out(1,string)
pass "info symbol"
}
-re ".*$gdb_prompt $" {
fail "info symbol"
}
timeout {
fail "info symbol (timeout)"
}
}
# Now try a 'list' from the other source file.
gdb_test "list $entry_symbol" ".*gdbasm_startup.*" "list"
# Now try a source file search
gdb_test "search A routine for foo2 to call" \
"40\[ \t\]+comment \"A routine for foo2 to call.\"" "search"
# See if `f' prints the right source file.
gdb_test "f" ".*asmsrc2\[.\]s:8.*" "f in foo2"
# `next' one insn (or macro) to set up our stackframe (for the following bt).
gdb_test "n" "12\[ \]*.*foo3" "n in foo2"
# See if a simple `bt' prints the right source files and
# doesn't fall off the stack.
gdb_test "bt 10" \
"\#0.*foo2.*asmsrc2\[.\]s:12.*\#1.*main.*asmsrc1\[.\]s:33" \
"bt ALL in foo2"
# See if a capped `bt' prints the right source files.
gdb_test "bt 2" "\#0.*foo2.*asmsrc2\[.\]s:12.*\#1.*main.*asmsrc1\[.\]s:33.*" "bt 2 in foo2"
# Step into another subroutine which lives back in the first source file.
gdb_test "s" "" "s 2"
# Next over insns to set up the stack frame.
gdb_test "n" "" "n 2"
# Now see if a capped `bt' is correct.
gdb_test "bt 3" "\#0.*foo3.*asmsrc1\[.\]s:45.*\#1.*foo2.*asmsrc2\[.\]s:12.*\#2.*main.*asmsrc1\[.\]s:33.*" "bt 3 in foo3"
# Try 'info source' from asmsrc1.s
gdb_test "info source" \
"Current source file is .*asmsrc1.s.*Source language is asm.*" \
"info source asmsrc1.s"
# Try 'finishing' from foo3
gdb_test "finish" "Run till exit from.*\[\r\n\]13\[ \t\]+gdbasm_call foo3" \
"finish from foo3"
# Try 'info source' from asmsrc2.s
gdb_test "info source" \
"Current source file is .*asmsrc2.s.*Source language is asm.*" \
"info source asmsrc2.s"
# Try 'info sources'. This can produce a lot of output on systems
# with dynamic linking, where the system's shared libc was compiled
# with debugging info; for example, on Linux, this produces 47kb of
# output. So we consume it as we go.
send_gdb "info sources\n"
set seen_asmsrc_1 0
set seen_asmsrc_2 0
gdb_expect {
-re "^\[^,\]*asmsrc1.s(, |\[\r\n\]+)" {
set seen_asmsrc_1 1
exp_continue
}
-re "^\[^,\]*asmsrc2.s(, |\[\r\n\]+)" {
set seen_asmsrc_2 1
exp_continue
}
-re ", " {
exp_continue
}
-re "$gdb_prompt $" {
if {$seen_asmsrc_1 && $seen_asmsrc_2} {
pass "info sources"
} else {
fail "info sources"
}
}
timeout {
fail "info sources (timeout)"
}
}
# Try 'info line'
gdb_test "info line" \
"Line 13 of.*asmsrc2.s.*starts at.*<foo2+.*> and ends at.*<foo2+.*>." \
"info line"
# Try 'nexting' over next call to foo3
gdb_test "next" "17\[ \t\]+gdbasm_leave" "next over foo3"
# Try 'return' from foo2
gdb_test "return" "\#0 main .*37\[ \t\]+gdbasm_exit0" "return from foo2" \
"Make (foo2|selected stack frame) return now\?.*" "y"
# Disassemble something, check the output
proc test_dis { command var } {
global gdb_prompt
send_gdb "${command}\n"
gdb_expect {
-re "${var}.*:.*(Cannot access|Bad address)" {
# The "disassembler" was only accessing the local
# executable and that would cause attempts to disassemble
# variables to fail (memory not valid).
fail "${command} (memory read error)"
}
-re "${var}.*:.*${gdb_prompt}" {
pass "${command}"
}
timeout {
fail "${command} (timeout)"
}
}
}
# See if we can look at a global variable, three ways
gdb_test "print globalvar" ".* = 11" "look at global variable"
test_dis "x/i &globalvar" "globalvar"
test_dis "disassem &globalvar &globalvar+1" "globalvar"
# See if we can look at a static variable, three ways
gdb_test "print staticvar" ".* = 5" "look at static variable"
test_dis "x/i &staticvar" "staticvar"
test_dis "disassem &staticvar &staticvar+1" "staticvar"
# See if we can look at a static function
gdb_test "disassem foostatic" ".*<foostatic\\+0>:.*End of assembler dump." \
"look at static function"
remote_exec build "rm -f ${subdir}/arch.inc"
remote_exec build "rm -f ${subdir}/note.inc"