1# Copyright 1997, 1998, 1999, 2000, 2007, 2008, 2009, 2010, 2011 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 17if $tracelevel then { 18 strace $tracelevel 19 } 20 21 22# are we on a target board 23if ![isnative] then { 24 return 25} 26 27# This test is presently only valid on HP-UX, since it requires 28# that we use HP-UX-specific compiler & linker options to build 29# the testcase. 30# 31if {! [istarget "hppa*-*-*hpux*"] } { 32 return 33} 34 35set libfile "solib" 36set testfile "so-indr-cl" 37set srcfile ${testfile}.c 38set binfile ${objdir}/${subdir}/${testfile} 39 40if [get_compiler_info ${binfile}] { 41 return -1 42} 43 44# Build the shared libraries this test case needs. 45# 46#cd ${subdir} 47#remote_exec build "$CC -g +z -c ${libfile}1.c -o ${libfile}1.o" 48 49 50if {$hp_cc_compiler || $hp_aCC_compiler} { 51 set additional_flags "additional_flags=+z" 52} else { 53 set additional_flags "additional_flags=-fpic" 54} 55if {[gdb_compile "${srcdir}/${subdir}/${libfile}1.c" "${objdir}/${subdir}/${libfile}1.o" object [list debug $additional_flags]] != ""} { 56 perror "Couldn't compile ${libfile}1.c" 57 return -1 58} 59 60if [istarget "hppa*-hp-hpux*"] then { 61 remote_exec build "ld -b ${objdir}/${subdir}/${libfile}1.o -o ${objdir}/${subdir}/${libfile}1.sl" 62} else { 63 set additional_flags "additional_flags=-shared" 64 gdb_compile "${objdir}/${subdir}/${libfile}1.o" "${objdir}/${subdir}/${libfile}1.sl" executable [list debug $additional_flags] 65} 66 67# Build the test case 68#remote_exec build "$CC -Aa -g ${srcfile} ${libfile}1.sl -o ${binfile}" 69 70 71if {$hp_cc_compiler} { 72 set additional_flags "additional_flags=-Ae" 73} else { 74 set additional_flags "" 75} 76if {[gdb_compile "${srcdir}/${subdir}/${srcfile} ${objdir}/${subdir}/${libfile}1.sl" "${binfile}" executable [list debug $additional_flags]] != ""} { 77 perror "Couldn't build ${binfile}" 78 return -1 79} 80 81#cd .. 82 83# Start with a fresh gdb 84 85gdb_exit 86gdb_start 87gdb_reinitialize_dir $srcdir/$subdir 88gdb_load ${binfile} 89 90# This program implicitly loads SOM shared libraries. We wish to test 91# whether a user can set breakpoints in a shlib before running the 92# program, where the program doesn't directly call the shlib, but 93# indirectly does via passing its address to another function. 94# 95# ??rehrauer: Currently, this doesn't work, but we do catch the case 96# and explicitly disallow it. The reason it fails appears to be that 97# 98# [1] gdb consults only the linker symbol table in this scenario, and 99# [2] For a shlib function that is only indirectly called from the 100# main a.out, there is in the linker symbol table a stub whose 101# address is negative. Possibly this is to be interpreted as 102# an index into the DLT?? 103# 104send_gdb "break solib_main\n" 105gdb_expect { 106 -re "Cannot break on solib_main without a running program.*$gdb_prompt $"\ 107 {pass "break on indirect solib call before running"} 108 -re "Breakpoint.*deferred.*\\(\"solib_main\" was not found.*$gdb_prompt $"\ 109 {pass "break on indirect solib call before running 2"} 110 -re "$gdb_prompt $"\ 111 {fail "break on indirect solib call before running"} 112 timeout {fail "(timeout) break on indirect solib call before running"} 113} 114 115# However, if we do run to the program's main, we then ought to be 116# able to set a breakpoint on the indirectly called function. (Apparently, 117# once the inferior is running, gdb consults the debug info rather than 118# the linker symbol table, and is able to find the correct address.) 119# 120if ![runto_main] then { fail "indirect solib call tests suppressed" } 121 122# Verify that we can step over the first shlib call. 123# 124send_gdb "break solib_main\n" 125gdb_expect { 126 -re ".*\[Bb\]reakpoint \[0-9\]* at 0x\[0-9a-fA-F\]*: file.*${libfile}1.c.*$gdb_prompt $"\ 127 {pass "break on indirect solib call after running"} 128 -re "$gdb_prompt $"\ 129 {fail "break on indirect solib call after running"} 130 timeout {fail "(timeout) break on indirect solib call after running"} 131} 132 133gdb_exit 134return 0 135