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jeremybenn |
# Copyright 1998, 2000, 2001, 2002, 2003, 2004, 2007, 2008, 2009, 2010
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# Free Software Foundation, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see .
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#
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# This file was written by Kendra.
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if $tracelevel then {
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strace $tracelevel
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}
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#
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# Test debugging assembly level programs.
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# This file uses asmsrc[12].s for input.
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#
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set asm-arch ""
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set asm-note "empty"
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set asm-flags ""
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set link-flags "-e _start"
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set debug-flags ""
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switch -glob -- [istarget] {
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"alpha*-*-*" {
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set asm-arch alpha
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# ??? Won't work with ecoff systems like Tru64, but then we also
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# don't have any other -g flag that creates mdebug output.
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set asm-flags "-no-mdebug -I${srcdir}/${subdir} -I${objdir}/${subdir}"
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set debug-flags "-gdwarf-2"
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}
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"*arm-*-*" {
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set asm-arch arm
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}
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"xscale-*-*" {
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set asm-arch arm
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}
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"frv-*-*" {
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set asm-arch frv
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}
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"s390-*-*" {
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set asm-arch s390
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}
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"s390x-*-*" {
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set asm-arch s390x
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}
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"x86_64-*-*" {
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set asm-arch x86_64
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set debug-flags "-gdwarf-2"
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}
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"i\[3456\]86-*-*" {
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set asm-arch i386
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}
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"lm32-*" {
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set asm-arch lm32
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}
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"m32r*-linux*" {
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set asm-arch m32r-linux
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}
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"m32c-*-*" {
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set asm-arch m32c
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}
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"m32r*-*" {
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set asm-arch m32r
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append link-flags "--whole-archive -lgloss --no-whole-archive"
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}
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"m6811-*-*" {
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set asm-arch m68hc11
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set asm-flags "-mshort-double -m68hc11 --no-warn -I${srcdir}/${subdir} -I${objdir}/${subdir}"
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set debug-flags "-gdwarf-2"
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# This asm test is specific and uses the linker directly.
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# We must not use the target board linker script defined for other
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# tests. Remove it and restore it later on.
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set board [target_info name]
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set old_ldscript [board_info $board ldscript]
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unset_board_info "ldscript"
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}
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"m6812-*-*" {
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set asm-arch m68hc11
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set asm-flags "-mshort-double -m68hc12 --no-warn -I${srcdir}/${subdir} -I${objdir}/${subdir}"
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set debug-flags "-gdwarf-2"
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# This asm test is specific and uses the linker directly.
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# We must not use the target board linker script defined for other
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# tests. Remove it and restore it later on.
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set board [target_info name]
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set old_ldscript [board_info $board ldscript]
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set_board_info ldscript ""
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}
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"mips*-*" {
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set asm-arch mips
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}
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"powerpc*-*" {
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set asm-arch powerpc
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}
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"sh*-*-*" {
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set asm-arch sh
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set debug-flags "-gdwarf-2"
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}
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"sparc-*-*" {
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set asm-arch sparc
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}
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"sparc64-*-*" {
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set asm-arch sparc64
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set asm-flags "-xarch=v9 -I${srcdir}/${subdir} -I${objdir}/${subdir}"
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set debug-flags "-gdwarf-2"
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}
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"spu*-*-*" {
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set asm-arch spu
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set asm-flags "-I${srcdir}/${subdir} -I${objdir}/${subdir} --no-warn"
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set debug-flags "-gdwarf-2"
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}
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"xstormy16-*-*" {
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set asm-arch xstormy16
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set debug-flags "-gdwarf-2"
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}
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"v850-*-*" {
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set asm-arch v850
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set gdb_wrapper_initialized 1
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}
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"m68k-*-*" {
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set asm-arch m68k
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}
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"ia64-*-*" {
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set asm-arch ia64
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set debug-flags "-gdwarf-2"
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}
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"iq2000-*-*" {
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set asm-arch iq2000
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}
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"hppa*-linux-*" {
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set asm-arch pa
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set debug-flags "-gdwarf-2"
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}
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"hppa-*-openbsd*" {
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set asm-arch pa
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set debug-flags "-gdwarf-2"
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}
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"hppa64-*-hpux*" {
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set asm-arch pa64
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set debug-flags "-gdwarf-2"
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}
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"h83*-*" {
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set asm-arch h8300
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set debug-flags "-gdwarf-2"
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}
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}
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if { "${asm-arch}" == "" } {
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untested asm-source.exp
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return -1
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}
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# On NetBSD/ELF we need a special NetBSD-identifying note section.
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if { [istarget "*-*-netbsdelf*"]
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|| [istarget "alpha-*-netbsd*"]
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|| [istarget "mips*-*-netbsd*"]
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|| [istarget "powerpc-*-netbsd*"]
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|| [istarget "x86_64-*-netbsd*"] } then {
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set asm-note "netbsd"
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}
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# On OpenBSD/ELF we need a similar note section. We make no attempt
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# of handing a.out here since most OpenBSD/a.out systems use a rather
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# outdated assembler that doesn't assemble this test's code anyway.
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if { [istarget "*-*-openbsd*"] } then {
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set asm-note "openbsd"
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}
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# Watch out, we are invoking the assembler, but the testsuite sets multilib
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# switches according to compiler syntax. If we pass these options straight
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# to the assembler, they won't always make sense. If we don't pass them to
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# the assembler, the final link will complain that the object files were
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# built with different defaults. So no matter what we do, we lose. We may as
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# well get out of this test sooner rather than later.
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set dest [target_info name]
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if [board_info $dest exists multilib_flags] {
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set multilib_flags [board_info $dest multilib_flags]
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if { "${multilib_flags}" != "" } {
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untested asm-source.exp
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return -1
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return;
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}
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}
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set testfile "asm-source"
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set binfile ${objdir}/${subdir}/${testfile}
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set srcfile1 asmsrc1.s
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set srcfile2 asmsrc2.s
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remote_exec build "rm -f ${subdir}/arch.inc"
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remote_download host ${srcdir}/${subdir}/${asm-arch}.inc ${subdir}/arch.inc
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remote_exec build "rm -f ${subdir}/note.inc"
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remote_download host ${srcdir}/${subdir}/${asm-note}.inc ${subdir}/note.inc
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if { [string equal ${asm-flags} ""] } {
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set asm-flags "-I${srcdir}/${subdir} -I${objdir}/${subdir}"
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}
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if { [string equal ${debug-flags} ""] } {
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set debug-flags "-gstabs"
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}
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# Allow the target board to override the debug flags.
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if { [board_info $dest exists debug_flags] } then {
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set debug-flags "[board_info $dest debug_flags]"
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}
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# The debug flags are in the format that gcc expects:
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# "-gdwarf-2", "-gstabs+", or "-gstabs". To be compatible with the
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# other languages in the test suite, we accept this input format.
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# So the user can run the test suite with:
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#
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# runtest --target_board unix/gdb:debug_flags=-gdwarf-2
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# make check RUNTESTFLAGS="--target_board unix/gdb:debug_flags=-gdwarf-2"
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#
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# However, the GNU assembler has different spellings than gcc.
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# So I adjust the debug flags here.
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# The GNU assembler spells "dwarf-2" as "dwarf2".
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regsub "--" "-gdwarf-2" "${debug-flags}" "-gdwarf2" debug-flags
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# The GNU assembler before 2.15 did not support "stabs+".
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regsub "--" "-gstabs\[+\]" "${debug-flags}" "-gstabs" debug-flags
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# The GNU assembler does not support level options like "-g2" or "-g3".
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regsub "--" "-g\[0-9\]" "${debug-flags}" "" debug-flags
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if {[target_assemble ${srcdir}/${subdir}/${srcfile1} asmsrc1.o "${asm-flags} ${debug-flags}"] != ""} then {
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untested asm-source.exp
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return -1
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}
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if {[target_assemble ${srcdir}/${subdir}/${srcfile2} asmsrc2.o "${asm-flags} ${debug-flags}"] != ""} then {
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untested asm-source.exp
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return -1
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}
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# We deliberately don't use gdb_compile here to link together the
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# assembled object files. Using gdb_compile, and therefore the C
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# compiler, is conceptually wrong, since we're testing raw assembler
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# code here that provides its own startup code. Using target_link
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# also avoids a lot of problems on many systems, most notably on
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# *-*-*bsd* and *-*-solaris2*.
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if {[target_link "asmsrc1.o asmsrc2.o" "${binfile}" ${link-flags}] != "" } then {
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untested asm-source.exp
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return -1
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}
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# Restore the target board linker script for HC11/HC12.
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if { [istarget "m6811-*-*"] || [istarget "m6812-*-*"] } {
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set_board_info ldscript $old_ldscript
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}
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remote_exec build "mv asmsrc1.o asmsrc2.o ${objdir}/${subdir}"
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# Collect some line numbers.
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set line_main [expr [gdb_get_line_number "main start" "asmsrc1.s"] + 1]
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set line_call_foo2 [expr [gdb_get_line_number "call foo2" "asmsrc1.s"] + 1]
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set line_search_comment [expr [gdb_get_line_number "search" "asmsrc1.s"] + 1]
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| 270 |
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set line_foo3 [expr [gdb_get_line_number "foo3 start" "asmsrc1.s"] + 1]
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set line_main_exit [expr [gdb_get_line_number "main exit" "asmsrc1.s"] + 1]
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set line_foo2 [expr [gdb_get_line_number "foo2 start" "asmsrc2.s"] + 1]
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set line_call_foo3 [expr [gdb_get_line_number "call foo3" "asmsrc2.s"] + 1]
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| 274 |
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set line_call_foo3_again [expr $line_call_foo3 + 1]
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| 275 |
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set line_foo2_leave [expr [gdb_get_line_number "foo2 leave" "asmsrc2.s"] + 1]
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| 276 |
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| 277 |
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gdb_start
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| 278 |
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gdb_reinitialize_dir $srcdir/$subdir
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| 279 |
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gdb_load ${binfile}
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| 280 |
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| 281 |
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#
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# Run to `main' where we begin our tests.
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#
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| 284 |
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| 285 |
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if ![runto_main] then {
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| 286 |
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gdb_suppress_tests
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| 287 |
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}
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| 288 |
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| 289 |
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# Execute the `f' command and see if the result includes source info.
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| 290 |
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gdb_test "f" "asmsrc1\[.\]s:$line_main.*several_nops" "f at main"
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| 291 |
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| 292 |
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# See if we properly `next' over a macro with several insns.
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| 293 |
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gdb_test "n" "$line_call_foo2\[ \]*.*foo2" "next over macro"
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| 294 |
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| 295 |
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# See if we can properly `step' into a subroutine call.
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| 296 |
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gdb_test "s" "$line_foo2\[ \]*.*" "step into foo2"
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| 297 |
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| 298 |
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# Test 'info target', and incidentally capture the entry point address.
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| 299 |
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set entry_point 0
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| 300 |
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gdb_test_multiple "info target" "info target" {
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| 301 |
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-re "Symbols from .*asm-source.*Entry point: 0x(\[01232456789abcdefABCDEF\]+).*$gdb_prompt $" {
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| 302 |
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set entry_point $expect_out(1,string)
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pass "info target"
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| 304 |
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}
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| 305 |
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}
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| 306 |
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| 307 |
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# Capture the start symbol (may be '_start' or 'start')
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| 308 |
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set entry_symbol ""
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| 309 |
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gdb_test_multiple "info symbol 0x$entry_point" "info symbol" {
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| 310 |
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-re "info symbol 0x$entry_point\[\r\n\]+(\[^\r\n\]*) in section .*$gdb_prompt $" {
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| 311 |
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# We match the echoed `info symbol' command here, to help us
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| 312 |
|
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# reliably identify the beginning of the start symbol in the
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| 313 |
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# command's output. You might think we could just use '^' to
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| 314 |
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# start matching at the beginning of the line, but
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| 315 |
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# unfortunately, in Expect, '^' matches the beginning of the
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| 316 |
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# input that hasn't been matched by any expect clause yet. If
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| 317 |
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# every expect clause consumes a complete line, along with its
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| 318 |
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# terminating CR/LF, this is equivalent to the beginning of a
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| 319 |
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|
# 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 |
|
|
}
|
| 326 |
|
|
|
| 327 |
|
|
# Now try a 'list' from the other source file.
|
| 328 |
|
|
gdb_test "list $entry_symbol" ".*gdbasm_startup.*" "list"
|
| 329 |
|
|
|
| 330 |
|
|
# Now try a source file search
|
| 331 |
|
|
gdb_test "search A routine for foo2 to call" \
|
| 332 |
|
|
"$line_search_comment\[ \t\]+comment \"A routine for foo2 to call.\"" "search"
|
| 333 |
|
|
|
| 334 |
|
|
# See if `f' prints the right source file.
|
| 335 |
|
|
gdb_test "f" ".*asmsrc2\[.\]s:$line_foo2.*" "f in foo2"
|
| 336 |
|
|
|
| 337 |
|
|
# `next' one insn (or macro) to set up our stackframe (for the following bt).
|
| 338 |
|
|
gdb_test "n" "$line_call_foo3\[ \]*.*foo3" "n in foo2"
|
| 339 |
|
|
|
| 340 |
|
|
# See if a simple `bt' prints the right source files and
|
| 341 |
|
|
# doesn't fall off the stack.
|
| 342 |
|
|
|
| 343 |
|
|
gdb_test "bt 10" \
|
| 344 |
|
|
"\#0.*foo2.*asmsrc2\[.\]s:$line_call_foo3.*\#1.*main.*asmsrc1\[.\]s:$line_call_foo2" \
|
| 345 |
|
|
"bt ALL in foo2"
|
| 346 |
|
|
|
| 347 |
|
|
# See if a capped `bt' prints the right source files.
|
| 348 |
|
|
gdb_test "bt 2" "\#0.*foo2.*asmsrc2\[.\]s:$line_call_foo3.*\#1.*main.*asmsrc1\[.\]s:$line_call_foo2.*" "bt 2 in foo2"
|
| 349 |
|
|
|
| 350 |
|
|
# Step into another subroutine which lives back in the first source file.
|
| 351 |
|
|
gdb_test "s" ".*" "s 2"
|
| 352 |
|
|
|
| 353 |
|
|
# Next over insns to set up the stack frame.
|
| 354 |
|
|
gdb_test "n" ".*" "n 2"
|
| 355 |
|
|
|
| 356 |
|
|
# Now see if a capped `bt' is correct.
|
| 357 |
|
|
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"
|
| 358 |
|
|
|
| 359 |
|
|
# Try 'info source' from asmsrc1.s
|
| 360 |
|
|
gdb_test "info source" \
|
| 361 |
|
|
"Current source file is .*asmsrc1.s.*Source language is asm.*" \
|
| 362 |
|
|
"info source asmsrc1.s"
|
| 363 |
|
|
|
| 364 |
|
|
# Try 'finishing' from foo3
|
| 365 |
|
|
gdb_test "finish" "Run till exit from.*\[\r\n\]$line_call_foo3_again\[ \t\]+gdbasm_call foo3" \
|
| 366 |
|
|
"finish from foo3"
|
| 367 |
|
|
|
| 368 |
|
|
# Try 'info source' from asmsrc2.s
|
| 369 |
|
|
gdb_test "info source" \
|
| 370 |
|
|
"Current source file is .*asmsrc2.s.*Source language is asm.*" \
|
| 371 |
|
|
"info source asmsrc2.s"
|
| 372 |
|
|
|
| 373 |
|
|
# Try 'info sources'. This can produce a lot of output on systems
|
| 374 |
|
|
# with dynamic linking, where the system's shared libc was compiled
|
| 375 |
|
|
# with debugging info; for example, on Linux, this produces 47kb of
|
| 376 |
|
|
# output. So we consume it as we go.
|
| 377 |
|
|
set seen_asmsrc_1 0
|
| 378 |
|
|
set seen_asmsrc_2 0
|
| 379 |
|
|
gdb_test_multiple "info sources" "info sources" {
|
| 380 |
|
|
-re "^\[^,\]*asmsrc1.s(, |\[\r\n\]+)" {
|
| 381 |
|
|
set seen_asmsrc_1 1
|
| 382 |
|
|
exp_continue
|
| 383 |
|
|
}
|
| 384 |
|
|
-re "^\[^,\]*asmsrc2.s(, |\[\r\n\]+)" {
|
| 385 |
|
|
set seen_asmsrc_2 1
|
| 386 |
|
|
exp_continue
|
| 387 |
|
|
}
|
| 388 |
|
|
-re ", " {
|
| 389 |
|
|
exp_continue
|
| 390 |
|
|
}
|
| 391 |
|
|
-re "$gdb_prompt $" {
|
| 392 |
|
|
if {$seen_asmsrc_1 && $seen_asmsrc_2} {
|
| 393 |
|
|
pass "info sources"
|
| 394 |
|
|
} else {
|
| 395 |
|
|
fail "info sources"
|
| 396 |
|
|
}
|
| 397 |
|
|
}
|
| 398 |
|
|
}
|
| 399 |
|
|
|
| 400 |
|
|
|
| 401 |
|
|
# Try 'info line'
|
| 402 |
|
|
gdb_test "info line" \
|
| 403 |
|
|
"Line $line_call_foo3_again of.*asmsrc2.s.*starts at.* and ends at.*." \
|
| 404 |
|
|
"info line"
|
| 405 |
|
|
|
| 406 |
|
|
# Try 'nexting' over next call to foo3
|
| 407 |
|
|
gdb_test "next" "$line_foo2_leave\[ \t\]+gdbasm_leave" "next over foo3"
|
| 408 |
|
|
|
| 409 |
|
|
# Try 'return' from foo2
|
| 410 |
|
|
gdb_test "return" "\#0 main .*$line_main_exit\[ \t\]+gdbasm_exit0" "return from foo2" \
|
| 411 |
|
|
"Make (foo2|selected stack frame) return now\?.*" "y"
|
| 412 |
|
|
|
| 413 |
|
|
# Disassemble something, check the output
|
| 414 |
|
|
proc test_dis { command var } {
|
| 415 |
|
|
global gdb_prompt
|
| 416 |
|
|
gdb_test_multiple "${command}" "${command}" {
|
| 417 |
|
|
-re "${var}.*:.*(Cannot access|Bad address)" {
|
| 418 |
|
|
# The "disassembler" was only accessing the local
|
| 419 |
|
|
# executable and that would cause attempts to disassemble
|
| 420 |
|
|
# variables to fail (memory not valid).
|
| 421 |
|
|
fail "${command} (memory read error)"
|
| 422 |
|
|
}
|
| 423 |
|
|
-re "${var}.*:.*${gdb_prompt}" {
|
| 424 |
|
|
pass "${command}"
|
| 425 |
|
|
}
|
| 426 |
|
|
}
|
| 427 |
|
|
}
|
| 428 |
|
|
|
| 429 |
|
|
# See if we can look at a global variable, three ways
|
| 430 |
|
|
gdb_test "print globalvar" ".* = 11" "look at global variable"
|
| 431 |
|
|
test_dis "x/i &globalvar" "globalvar"
|
| 432 |
|
|
test_dis "disassem &globalvar, &globalvar+1" "globalvar"
|
| 433 |
|
|
|
| 434 |
|
|
# See if we can look at a static variable, three ways
|
| 435 |
|
|
gdb_test "print staticvar" ".* = 5" "look at static variable"
|
| 436 |
|
|
test_dis "x/i &staticvar" "staticvar"
|
| 437 |
|
|
test_dis "disassem &staticvar, &staticvar+1" "staticvar"
|
| 438 |
|
|
|
| 439 |
|
|
# See if we can look at a static function
|
| 440 |
|
|
gdb_test "disassem foostatic" ".*<\\+0>:.*End of assembler dump." \
|
| 441 |
|
|
"look at static function"
|
| 442 |
|
|
|
| 443 |
|
|
remote_exec build "rm -f ${subdir}/arch.inc"
|
| 444 |
|
|
remote_exec build "rm -f ${subdir}/note.inc"
|
