-# Copyright 1998, 2000 Free Software Foundation, Inc.
+# Copyright 1998-2017 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
+# the Free Software Foundation; either version 3 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
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# This file was written by Kendra.
-if $tracelevel then {
- strace $tracelevel
-}
-
#
# Test debugging assembly level programs.
# This file uses asmsrc[12].s for input.
#
-set prms_id 0
-set bug_id 0
set asm-arch ""
+set asm-note "empty"
set asm-flags ""
-set link-flags ""
-
-if [istarget "d10v-*-*"] then {
- set asm-arch d10v
+set link-flags "-e _start"
+set debug-flags ""
+
+set obj_include -I[standard_output_file {}]
+
+switch -glob -- [istarget] {
+ "alpha*-*-*" {
+ set asm-arch alpha
+ # ??? Won't work with ecoff systems like Tru64, but then we also
+ # don't have any other -g flag that creates mdebug output.
+ set asm-flags "-no-mdebug -I${srcdir}/${subdir} $obj_include"
+ set debug-flags "-gdwarf-2"
+ }
+ "arm*-*-*" {
+ set asm-arch arm
+ }
+ "aarch64*-*-*" {
+ set asm-arch aarch64
+ }
+ "bfin-*-*" {
+ set asm-arch bfin
+ }
+ "frv-*-*" {
+ set asm-arch frv
+ }
+ "s390-*-*" {
+ set asm-arch s390
+ }
+ "s390x-*-*" {
+ set asm-arch s390x
+ }
+ "x86_64-*-*" {
+ set asm-arch x86_64
+ set debug-flags "-gdwarf-2"
+ }
+ "i\[3456\]86-*-*" {
+ set asm-arch i386
+ }
+ "lm32-*" {
+ set asm-arch lm32
+ }
+ "m32r*-linux*" {
+ set asm-arch m32r-linux
+ }
+ "m32c-*-*" {
+ set asm-arch m32c
+ }
+ "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 --no-warn -I${srcdir}/${subdir} $obj_include"
+ set debug-flags "-gdwarf-2"
+ # This asm test is specific and uses the linker directly.
+ # We must not use the target board linker script defined for other
+ # tests. Remove it and restore it later on.
+ set board [target_info name]
+ set old_ldscript [board_info $board ldscript]
+ unset_board_info "ldscript"
+ }
+ "m6812-*-*" {
+ set asm-arch m68hc11
+ set asm-flags "-mshort-double -m68hc12 --no-warn -I${srcdir}/${subdir} $obj_include"
+ set debug-flags "-gdwarf-2"
+ # This asm test is specific and uses the linker directly.
+ # We must not use the target board linker script defined for other
+ # tests. Remove it and restore it later on.
+ set board [target_info name]
+ set old_ldscript [board_info $board ldscript]
+ set_board_info ldscript ""
+ }
+ "mips*-*" {
+ set asm-arch mips
+ }
+ "powerpc64le-*" {
+ set asm-arch powerpc64le
+ set asm-flags "-a64 -I${srcdir}/${subdir} $obj_include"
+ append link-flags " -m elf64lppc"
+ }
+ "powerpc*-*" {
+ if { [is_lp64_target] } {
+ set asm-arch powerpc64
+ set asm-flags "-a64 -I${srcdir}/${subdir} $obj_include"
+ append link-flags " -m elf64ppc"
+ } else {
+ set asm-arch powerpc
+ set asm-flags "-a32 -I${srcdir}/${subdir} $obj_include"
+ append link-flags " -m elf32ppc"
+ }
+ }
+ "sh*-*-*" {
+ set asm-arch sh
+ set debug-flags "-gdwarf-2"
+ }
+ "sparc-*-*" {
+ set asm-arch sparc
+ }
+ "sparc64-*-*" {
+ set asm-arch sparc64
+ set asm-flags "-xarch=v9 -I${srcdir}/${subdir} $obj_include"
+ set debug-flags "-gdwarf-2"
+ }
+ "spu*-*-*" {
+ set asm-arch spu
+ set asm-flags "-I${srcdir}/${subdir} $obj_include --no-warn"
+ set debug-flags "-gdwarf-2"
+ }
+ "xstormy16-*-*" {
+ set asm-arch xstormy16
+ set debug-flags "-gdwarf-2"
+ }
+ "v850-*-*" {
+ set asm-arch v850
+ set gdb_wrapper_initialized 1
+ }
+ "m68k-*-*" {
+ set asm-arch m68k
+ }
+ "ia64-*-*" {
+ set asm-arch ia64
+ set debug-flags "-gdwarf-2"
+ }
+ "iq2000-*-*" {
+ set asm-arch iq2000
+ }
+ "hppa*-linux-*" {
+ set asm-arch pa
+ set debug-flags "-gdwarf-2"
+ }
+ "hppa-*-openbsd*" {
+ set asm-arch pa
+ set debug-flags "-gdwarf-2"
+ }
+ "h83*-*" {
+ set asm-arch h8300
+ set debug-flags "-gdwarf-2"
+ }
}
-if [istarget "s390-*-*"] then {
- set asm-arch s390
+
+if { "${asm-arch}" == "" } {
+ untested "skipping tests due to no asm architecture"
+ return -1
}
-if [istarget "i\[3456\]86-*-*"] then {
- set asm-arch i386
+
+# On NetBSD/ELF we need a special NetBSD-identifying note section.
+if { [istarget "*-*-netbsdelf*"]
+ || [istarget "alpha-*-netbsd*"]
+ || [istarget "mips*-*-netbsd*"]
+ || [istarget "powerpc-*-netbsd*"]
+ || [istarget "x86_64-*-netbsd*"] } then {
+ set asm-note "netbsd"
}
-if [istarget "m32r*-*"] then {
- set asm-arch m32r
+
+# 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"
}
-if [istarget "sparc-*-*"] then {
- set asm-arch sparc
+
+# 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}" != "" } {
+ untested "failed to compile"
+ return -1
+ return
+ }
}
-if { "${asm-arch}" == "" } {
- gdb_suppress_entire_file "Assembly source test -- not implemented for this target."
+
+standard_testfile asmsrc1.s asmsrc2.s
+
+set arch_inc [standard_output_file arch.inc]
+set note_inc [standard_output_file note.inc]
+
+remote_exec build "rm -f $arch_inc"
+remote_download host ${srcdir}/${subdir}/${asm-arch}.inc $arch_inc
+remote_exec build "rm -f $note_inc"
+remote_download host ${srcdir}/${subdir}/${asm-note}.inc $note_inc
+
+if { [string equal ${asm-flags} ""] } {
+ set asm-flags "-I${srcdir}/${subdir} $obj_include"
}
-set testfile "asm-source"
-set binfile ${objdir}/${subdir}/${testfile}
-set src1 ${srcdir}/${subdir}/asmsrc1.s
-set src2 ${srcdir}/${subdir}/asmsrc2.s
+if { [string equal ${debug-flags} ""] } {
+ set debug-flags "-gstabs"
+}
-if { "${asm-flags}" == "" } {
- #set asm-flags "-Wa,-gstabs,-I${srcdir}/${subdir},-I${objdir}/${subdir}"
- set asm-flags "-gstabs -I${srcdir}/${subdir} -I${objdir}/${subdir}"
+# 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]"
}
-if {[target_assemble ${src1} asmsrc1.o "${asm-flags}"] != ""} then {
- gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
+# 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
+
+set asm1obj [standard_output_file asmrc1.o]
+set asm2obj [standard_output_file asmrc2.o]
+
+if {[target_assemble ${srcdir}/${subdir}/${srcfile} $asm1obj "${asm-flags} ${debug-flags}"] != ""} then {
+ untested "failed to assemble"
+ return -1
}
-if {[target_assemble ${src2} asmsrc2.o "${asm-flags}"] != ""} then {
- gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
+if {[target_assemble ${srcdir}/${subdir}/${srcfile2} $asm2obj "${asm-flags} ${debug-flags}"] != ""} then {
+ untested "failed to assemble"
+ return -1
}
-if { [target_link "asmsrc1.o asmsrc2.o" ${binfile} "${link-flags}"] != "" } {
- 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 [list $asm1obj $asm2obj] "${binfile}" ${link-flags}] != "" } then {
+ untested "failed to link"
+ return -1
}
-remote_exec build "mv asmsrc1.o asmsrc2.o ${objdir}/${subdir}"
+# Restore the target board linker script for HC11/HC12.
+if { [istarget "m6811-*-*"] || [istarget "m6812-*-*"] } {
+ set_board_info ldscript $old_ldscript
+}
+# Collect some line numbers.
+set line_enter [expr [gdb_get_line_number "main enter" "asmsrc1.s"] + 1]
+set line_main [expr [gdb_get_line_number "main start" "asmsrc1.s"] + 1]
+set line_call_foo2 [expr [gdb_get_line_number "call foo2" "asmsrc1.s"] + 1]
+set line_search_comment [expr [gdb_get_line_number "search" "asmsrc1.s"] + 1]
+set line_foo3 [expr [gdb_get_line_number "foo3 start" "asmsrc1.s"] + 1]
+set line_main_exit [expr [gdb_get_line_number "main exit" "asmsrc1.s"] + 1]
+set line_foo2 [expr [gdb_get_line_number "foo2 start" "asmsrc2.s"] + 1]
+set line_call_foo3 [expr [gdb_get_line_number "call foo3" "asmsrc2.s"] + 1]
+set line_call_foo3_again [expr $line_call_foo3 + 1]
+set line_foo2_leave [expr [gdb_get_line_number "foo2 leave" "asmsrc2.s"] + 1]
gdb_start
gdb_reinitialize_dir $srcdir/$subdir
}
# Execute the `f' command and see if the result includes source info.
-gdb_test "f" "asmsrc1\[.\]s:29.*several_nops" "f at main"
+gdb_test "f" "asmsrc1\[.\]s:$line_enter.*gdbasm_enter" "f at main"
+
+# Execute the `n' command.
+gdb_test "n" "$line_main\[ \]*.*several_nops" "n at main"
# See if we properly `next' over a macro with several insns.
-gdb_test "n" "33\[ \]*.*foo2" "next over macro"
+gdb_test "n" "$line_call_foo2\[ \]*.*foo2" "next over macro"
# See if we can properly `step' into a subroutine call.
-gdb_test "s" "8\[ \]*.*" "step into foo2"
+gdb_test "s" "$line_foo2\[ \]*.*" "step into foo2"
+
+# Test 'info target', and incidentally capture the entry point address.
+set entry_point 0
+gdb_test_multiple "info target" "info target" {
+ -re "Symbols from .*asm-source.*Entry point: 0x(\[01232456789abcdefABCDEF\]+).*$gdb_prompt $" {
+ set entry_point $expect_out(1,string)
+ pass "info target"
+ }
+}
+
+# Capture the start symbol (may be '_start' or 'start')
+set entry_symbol ""
+gdb_test_multiple "info symbol 0x$entry_point" "info symbol" {
+ -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"
+ }
+}
# Now try a 'list' from the other source file.
-gdb_test "list _start" ".*gdbasm_startup.*" "list"
+gdb_test "list $entry_symbol" ".*gdbasm_startup.*" "list"
# Now try a source file search
gdb_test "search A routine for foo2 to call" \
- "39\[ \t\]+comment \"A routine for foo2 to call.\"" "search"
+ "$line_search_comment\[ \t\]+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"
+gdb_test "f" ".*asmsrc2\[.\]s:$line_foo2.*" "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"
+gdb_test "n" "$line_call_foo3\[ \]*.*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(.*\#2.*start\[^\r\n\]*)?" \
+ "\#0.*foo2.*asmsrc2\[.\]s:$line_call_foo3.*\#1.*main.*asmsrc1\[.\]s:$line_call_foo2" \
"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"
+gdb_test "bt 2" "\#0.*foo2.*asmsrc2\[.\]s:$line_call_foo3.*\#1.*main.*asmsrc1\[.\]s:$line_call_foo2.*" "bt 2 in foo2"
# Step into another subroutine which lives back in the first source file.
-gdb_test "s" "" "s 2"
+gdb_test "s" ".*" "s 2"
# Next over insns to set up the stack frame.
-gdb_test "n" "" "n 2"
+gdb_test "n" ".*" "n 2"
# Now see if a capped `bt' is correct.
-gdb_test "bt 3" "\#0.*foo3.*asmsrc1\[.\]s:44.*\#1.*foo2.*asmsrc2\[.\]s:12.*\#2.*main.*asmsrc1\[.\]s:33.*" "bt 3 in foo3"
+gdb_test "bt 3" "\#0.*foo3.*asmsrc1\[.\]s:$line_foo3.*\#1.*foo2.*asmsrc2\[.\]s:$line_call_foo3.*\#2.*main.*asmsrc1\[.\]s:$line_call_foo2.*" "bt 3 in foo3"
# Try 'info source' from asmsrc1.s
gdb_test "info source" \
"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"
+# Some architectures will have one or more instructions after the
+# call instruction which still is part of the call sequence, so we
+# must be prepared for a "finish" to show us the caller line
+# again as well as the statement after.
+gdb_test_multiple "finish" "finish from foo3" {
+ -re "Run till exit from.*\[\r\n\]$line_call_foo3\[ \t\]+gdbasm_call foo3.*$gdb_prompt $" {
+ pass "finish from foo3"
+ gdb_test "s" ".*" "s after finish"
+ }
+ -re "Run till exit from.*\[\r\n\]$line_call_foo3_again\[ \t\]+gdbasm_call foo3.*$gdb_prompt $" {
+ pass "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'
-gdb_test "info sources" \
- "Source files .*asmsrc\[12\].s.*asmsrc\[12\].s.*" \
- "info sources"
+# 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.
+set seen_asmsrc_1 0
+set seen_asmsrc_2 0
+gdb_test_multiple "info sources" "info sources" {
+ -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"
+ }
+ }
+}
+
# Try 'info line'
gdb_test "info line" \
- "Line 13 of.*asmsrc2.s.*starts at.*<foo2+.*> and ends at.*<foo2+.*>." \
+ "Line $line_call_foo3_again 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"
+gdb_test "next" "$line_foo2_leave\[ \t\]+gdbasm_leave" "next over foo3"
# Try 'return' from foo2
-gdb_test "return" "\#0 main .*37\[ \t\]+gdbasm_exit0" "return from foo2" \
- "Make selected stack frame return now\?.*" "y"
+# Like "finish", "return" command also can return to the caller
+# line again or the statement after, depending on the architecture.
+gdb_test_multiple "return" "return from foo2" {
+ -re "Make (foo2|selected stack frame) return now\\? .y or n. " {
+ send_gdb "y\n"
+ exp_continue
+ }
+ -re "\#0.*main .*$line_call_foo2\[ \t\]+gdbasm_call foo2.*$gdb_prompt $" {
+ pass "return from foo2"
+ gdb_test "s" ".*" "s after return"
+ }
+ -re "\#0.*main .*$line_main_exit\[ \t\]+gdbasm_exit0.*$gdb_prompt $" {
+ pass "return from foo2"
+ }
+}
+
+# Disassemble something, check the output
+proc test_dis { command var } {
+ global gdb_prompt
+ gdb_test_multiple "${command}" "${command}" {
+ -re "${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}"
+ }
+ }
+}
-# See if we can look at a global variable
-gdb_test "print globalvar" ".* = 11" "look at global variable"
+# See if we can look at a global variable, three ways
+gdb_test "print (int) globalvar" ".* = 11" "look at global variable"
+test_dis "x/i &globalvar" "globalvar"
+test_dis "disassem &globalvar, (int *) &globalvar+1" "globalvar"
-# See if we can look at a static variable
-gdb_test "print staticvar" ".* = 5" "look at static variable"
+# See if we can look at a static variable, three ways
+gdb_test "print (int) staticvar" ".* = 5" "look at static variable"
+test_dis "x/i &staticvar" "staticvar"
+test_dis "disassem &staticvar, (int *) &staticvar+1" "staticvar"
# See if we can look at a static function
-gdb_test "disassem foostatic" ".*<foostatic>:.*End of assembler dump." \
+gdb_test "disassem foostatic" ".*<\\+0>:.*End of assembler dump." \
"look at static function"
+remote_exec build "rm -f $arch_inc"
+remote_exec build "rm -f $note_inc"
projects / deliverable / binutils-gdb.git / blobdiff