Subversion Repositories openrisc

#   Copyright 1997, 1998, 1999, 2000, 2007, 2008, 2009, 2010

#   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 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, see .  */

if $tracelevel then {

        strace $tracelevel

        }

# are we on a target board

if ![isnative] then {

    return

}

# This test is presently only valid on HP-UX, since it requires

# that we use HP-UX-specific compiler & linker options to build

# the testcase.

#

if {! [istarget "hppa*-*-*hpux*"] } {

    return

}

set libfile "solib"

set testfile "so-indr-cl"

set srcfile ${testfile}.c

set binfile ${objdir}/${subdir}/${testfile}

if [get_compiler_info ${binfile}] {

    return -1

}

# Build the shared libraries this test case needs.

#

#cd ${subdir}

#remote_exec build "$CC -g +z -c ${libfile}1.c -o ${libfile}1.o"

if {$hp_cc_compiler || $hp_aCC_compiler} {

    set additional_flags "additional_flags=+z"

} else {

    set additional_flags "additional_flags=-fpic"

}

if {[gdb_compile "${srcdir}/${subdir}/${libfile}1.c" "${objdir}/${subdir}/${libfile}1.o" object [list debug $additional_flags]] != ""} {

    perror "Couldn't compile ${libfile}1.c"

    return -1

}

if [istarget "hppa*-hp-hpux*"] then {

    remote_exec build "ld -b ${objdir}/${subdir}/${libfile}1.o -o ${objdir}/${subdir}/${libfile}1.sl"

} else {

    set additional_flags "additional_flags=-shared"

    gdb_compile "${objdir}/${subdir}/${libfile}1.o" "${objdir}/${subdir}/${libfile}1.sl" executable [list debug $additional_flags]

}

# Build the test case

#remote_exec build "$CC -Aa -g ${srcfile} ${libfile}1.sl -o ${binfile}"

if {$hp_cc_compiler} {

    set additional_flags "additional_flags=-Ae"

} else {

    set additional_flags ""

}

if {[gdb_compile "${srcdir}/${subdir}/${srcfile} ${objdir}/${subdir}/${libfile}1.sl" "${binfile}" executable [list debug $additional_flags]] != ""} {

    perror "Couldn't build ${binfile}"

    return -1

}

#cd ..

# Start with a fresh gdb

gdb_exit

gdb_start

gdb_reinitialize_dir $srcdir/$subdir

gdb_load ${binfile}

# This program implicitly loads SOM shared libraries.  We wish to test

# whether a user can set breakpoints in a shlib before running the

# program, where the program doesn't directly call the shlib, but

# indirectly does via passing its address to another function.

#

# ??rehrauer: Currently, this doesn't work, but we do catch the case

# and explicitly disallow it.  The reason it fails appears to be that

#

#  [1] gdb consults only the linker symbol table in this scenario, and

#  [2] For a shlib function that is only indirectly called from the

#      main a.out, there is in the linker symbol table a stub whose

#      address is negative.  Possibly this is to be interpreted as

#      an index into the DLT??

#

send_gdb "break solib_main\n"

gdb_expect {

  -re "Cannot break on solib_main without a running program.*$gdb_prompt $"\

          {pass "break on indirect solib call before running"}

  -re "Breakpoint.*deferred.*\\(\"solib_main\" was not found.*$gdb_prompt $"\

          {pass "break on indirect solib call before running 2"}

  -re "$gdb_prompt $"\

          {fail "break on indirect solib call before running"}

  timeout {fail "(timeout) break on indirect solib call before running"}

}

# However, if we do run to the program's main, we then ought to be

# able to set a breakpoint on the indirectly called function.  (Apparently,

# once the inferior is running, gdb consults the debug info rather than

# the linker symbol table, and is able to find the correct address.)

#

if ![runto_main] then { fail "indirect solib call tests suppressed" }

# Verify that we can step over the first shlib call.

#

send_gdb "break solib_main\n"

gdb_expect {

  -re ".*\[Bb\]reakpoint \[0-9\]* at 0x\[0-9a-fA-F\]*: file.*${libfile}1.c.*$gdb_prompt $"\

          {pass "break on indirect solib call after running"}

  -re "$gdb_prompt $"\

          {fail "break on indirect solib call after running"}

  timeout {fail "(timeout) break on indirect solib call after running"}

}

gdb_exit

return 0