1# Copyright 1997, 1998, 1999, 2000 Free Software Foundation, Inc. 2 3# This program is free software; you can redistribute it and/or modify 4# it under the terms of the GNU General Public License as published by 5# the Free Software Foundation; either version 2 of the License, or 6# (at your option) any later version. 7# 8# This program is distributed in the hope that it will be useful, 9# but WITHOUT ANY WARRANTY; without even the implied warranty of 10# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 11# GNU General Public License for more details. 12# 13# You should have received a copy of the GNU General Public License 14# along with this program; if not, write to the Free Software 15# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ 16 17# Please email any bugs, comments, and/or additions to this file to: 18# bug-gdb@prep.ai.mit.edu 19 20if $tracelevel then { 21 strace $tracelevel 22 } 23 24set prms_id 0 25set bug_id 0 26 27# are we on a target board 28if ![isnative] then { 29 return 30} 31 32# This test is presently only valid on HP-UX, since it requires 33# that we use HP-UX-specific compiler & linker options to build 34# the testcase. 35# 36if {! [istarget "hppa*-*-*hpux*"] } { 37 return 38} 39 40set libfile "solib" 41set testfile "so-indr-cl" 42set srcfile ${testfile}.c 43set binfile ${objdir}/${subdir}/${testfile} 44 45if [get_compiler_info ${binfile}] { 46 return -1 47} 48 49# Build the shared libraries this test case needs. 50# 51#cd ${subdir} 52#remote_exec build "$CC -g +z -c ${libfile}1.c -o ${libfile}1.o" 53 54 55if {$hp_cc_compiler || $hp_aCC_compiler} { 56 set additional_flags "additional_flags=+z" 57} else { 58 set additional_flags "additional_flags=-fpic" 59} 60if {[gdb_compile "${srcdir}/${subdir}/${libfile}1.c" "${objdir}/${subdir}/${libfile}1.o" object [list debug $additional_flags]] != ""} { 61 perror "Couldn't compile ${libfile}1.c" 62 return -1 63} 64 65if [istarget "hppa*-hp-hpux*"] then { 66 remote_exec build "ld -b ${objdir}/${subdir}/${libfile}1.o -o ${objdir}/${subdir}/${libfile}1.sl" 67} else { 68 set additional_flags "additional_flags=-shared" 69 gdb_compile "${objdir}/${subdir}/${libfile}1.o" "${objdir}/${subdir}/${libfile}1.sl" executable [list debug $additional_flags] 70} 71 72# Build the test case 73#remote_exec build "$CC -Aa -g ${srcfile} ${libfile}1.sl -o ${binfile}" 74 75 76if {$hp_cc_compiler} { 77 set additional_flags "additional_flags=-Ae" 78} else { 79 set additional_flags "" 80} 81if {[gdb_compile "${srcdir}/${subdir}/${srcfile} ${objdir}/${subdir}/${libfile}1.sl" "${binfile}" executable [list debug $additional_flags]] != ""} { 82 perror "Couldn't build ${binfile}" 83 return -1 84} 85 86#cd .. 87 88# Start with a fresh gdb 89 90gdb_exit 91gdb_start 92gdb_reinitialize_dir $srcdir/$subdir 93gdb_load ${binfile} 94 95# This program implicitly loads SOM shared libraries. We wish to test 96# whether a user can set breakpoints in a shlib before running the 97# program, where the program doesn't directly call the shlib, but 98# indirectly does via passing its address to another function. 99# 100# ??rehrauer: Currently, this doesn't work, but we do catch the case 101# and explicitly disallow it. The reason it fails appears to be that 102# 103# [1] gdb consults only the linker symbol table in this scenario, and 104# [2] For a shlib function that is only indirectly called from the 105# main a.out, there is in the linker symbol table a stub whose 106# address is negative. Possibly this is to be interpreted as 107# an index into the DLT?? 108# 109send_gdb "break solib_main\n" 110gdb_expect { 111 -re "Cannot break on solib_main without a running program.*$gdb_prompt $"\ 112 {pass "break on indirect solib call before running"} 113 -re "Breakpoint.*deferred.*\\(\"solib_main\" was not found.*$gdb_prompt $"\ 114 {pass "break on indirect solib call before running 2"} 115 -re "$gdb_prompt $"\ 116 {fail "break on indirect solib call before running"} 117 timeout {fail "(timeout) break on indirect solib call before running"} 118} 119 120# However, if we do run to the program's main, we then ought to be 121# able to set a breakpoint on the indirectly called function. (Apparently, 122# once the inferior is running, gdb consults the debug info rather than 123# the linker symbol table, and is able to find the correct address.) 124# 125if ![runto_main] then { fail "indirect solib call tests suppressed" } 126 127# Verify that we can step over the first shlib call. 128# 129send_gdb "break solib_main\n" 130gdb_expect { 131 -re ".*\[Bb\]reakpoint \[0-9\]* at 0x\[0-9a-fA-F\]*: file.*${libfile}1.c.*$gdb_prompt $"\ 132 {pass "break on indirect solib call after running"} 133 -re "$gdb_prompt $"\ 134 {fail "break on indirect solib call after running"} 135 timeout {fail "(timeout) break on indirect solib call after running"} 136} 137 138gdb_exit 139return 0 140