322 lines
8.6 KiB
Plaintext
322 lines
8.6 KiB
Plaintext
# Copyright (C) 1992, 1994 Free Software Foundation, Inc.
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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 2 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, write to the Free Software
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# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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# Please email any bugs, comments, and/or additions to this file to:
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# bug-gdb@prep.ai.mit.edu
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# This file was written by Fred Fish. (fnf@cygnus.com)
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if $tracelevel then {
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strace $tracelevel
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}
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set prms_id 0
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set bug_id 0
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set binfile "opaque"
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set srcfile $binfile.c
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if ![file exists $objdir/$subdir/$binfile] then {
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perror "$objdir/$subdir/$binfile does not exist."
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return 0
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}
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# Start with a fresh gdb.
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gdb_exit
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gdb_start
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gdb_reinitialize_dir $srcdir/$subdir
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gdb_load $objdir/$subdir/$binfile
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source gdb.base/opaque-info.exp
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#
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# Test basic opaque structure handling (statically).
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# The ordering of the tests is significant. We first try the things that
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# might fail if gdb fails to connect the uses of opaque structures to
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# the actual opaque structure definition.
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# When we start up, gdb sets the file containing main() as the current
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# source file. The actual structure foo is defined in a different file.
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# A pointer (foop) to an instance of the opaque struct is defined in the same
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# source file as main(). Ensure that gdb correctly "connected" the definition
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# in the other file with the pointer to the opaque struct in the file containing
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# "foop".
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# Define a procedure to set up an xfail for all targets that do not support
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# this sort of cross reference.
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# Any target gcc that has a DBX_NO_XREFS definition in its config file will
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# not support it.
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# XCOFF does not seem to support it either. See the very end of gcc/xcoffout.h.
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# Native alpha ecoff doesn't support it either.
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# I don't think this type of cross reference works for any COFF target
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# either.
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proc setup_xfail_on_opaque_pointer {} {
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global gcc_compiled
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setup_xfail "rs6000-*-*" "a29k-*-udi" "vax-*-*" "i*86-sequent-bsd*"
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if {!$gcc_compiled} then {
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setup_xfail "alpha-*-*"
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}
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}
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setup_xfail_on_opaque_pointer
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send "whatis foop\n"
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expect {
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-re "whatis foop\r
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type = struct foo \[*\]+\r
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$prompt $" { pass "whatis on opaque struct pointer (statically)"}
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-re ".*$prompt $" { fail "whatis on opaque struct *" }
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timeout { fail "(timeout) whatis on opaque struct *" }
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}
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# Ensure that we know the form of the structure that foop points to.
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setup_xfail_on_opaque_pointer
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send "ptype foop\n"
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expect {
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-re "ptype foop\r
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type = struct foo \{\r
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int a;\r
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int b;\r
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\} \[*\]+\r
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$prompt $" { pass "ptype on opaque struct pointer (statically)" }
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-re ".*$prompt $" { fail "ptype on opaque struct *" }
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timeout { fail "(timeout) ptype on opaque struct *" }
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}
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# An instance of the opaque structure (afoo) is defined in a different file.
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# Ensure that we can locate afoo and the structure definition.
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send "whatis afoo\n"
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expect {
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-re "whatis afoo\r
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type = struct foo\r
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$prompt $" { pass "whatis on opaque struct instance (statically)" }
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-re ".*$prompt $" { fail "whatis on opaque struct" }
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timeout { fail "(timeout) whatis on opaque struct" }
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}
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# Ensure that we know the form of "afoo".
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send "ptype afoo\n"
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expect {
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-re "ptype afoo\r
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type = struct foo \{\r
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int a;\r
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int b;\r
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\}\r
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$prompt $" { pass "ptype on opaque struct instance (statically)" }
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-re ".*$prompt $" { fail "ptype on opaque struct instance" }
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timeout { fail "(timeout) ptype on opaque struct" }
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}
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# Ensure that we know what a struct foo looks like.
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send "ptype struct foo\n"
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expect {
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-re "ptype struct foo\r
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type = struct foo \{\r
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int a;\r
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int b;\r
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\}\r
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$prompt $" { pass "ptype on opaque struct tagname (statically)" }
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-re ".*$prompt $" { fail "ptype on opaque struct" }
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timeout { fail "(timeout) ptype on opaque struct" }
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}
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#
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# Done with static tests, now test dynamic opaque structure handling.
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# We reload the symbol table so we forget about anything we might
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# have learned during the static tests.
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#
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if [istarget "mips-idt-*"] then {
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# Restart because IDT/SIM runs out of file descriptors.
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gdb_exit
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gdb_start
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}
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gdb_reinitialize_dir $srcdir/$subdir
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gdb_load $objdir/$subdir/$binfile
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# Run to main, where struct foo is incomplete.
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if ![runto main] {
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perror "cannot run to breakpoint at main"
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}
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# The current source file is now the one containing main(). The structure foo
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# is defined in a different file, but we have a pointer to an instance of
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# the opaque structure in the current file. Ensure we know it's type.
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setup_xfail_on_opaque_pointer
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send "whatis foop\n"
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expect {
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-re "whatis foop\r
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type = struct foo \[*\]+\r
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$prompt $" { pass "whatis on opaque struct pointer (dynamically)"}
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-re ".*$prompt $" { fail "whatis on opaque struct pointer" }
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timeout { fail "(timeout) whatis on opaque struct ptr" }
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}
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# Ensure that we know the form of the thing foop points to.
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setup_xfail_on_opaque_pointer
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send "ptype foop\n"
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expect {
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-re "ptype foop\r
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type = struct foo \{\r
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int a;\r
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int b;\r
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\} \[*\]+\r
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$prompt $" { pass "ptype on opaque struct pointer (dynamically)" }
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-re ".*$prompt $" { fail "ptype on opaque struct *" }
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timeout { fail "(timeout) ptype on opaque struct *" }
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}
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send "whatis afoo\n"
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expect {
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-re "whatis afoo\r
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type = struct foo\r
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$prompt $" { pass "whatis on opaque struct instance (dynamically)" }
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-re ".*$prompt $" { fail "whatis on opaque struct" }
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timeout { fail "(timeout) whatis on opaque struct" }
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}
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# Ensure that we know the form of afoo, an instance of a struct foo.
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send "ptype afoo\n"
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expect {
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-re "ptype afoo\r
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type = struct foo \{\r
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int a;\r
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int b;\r
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\}\r
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$prompt $" { pass "ptype on opaque struct instance (dynamically)" }
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-re ".*$prompt $" { fail "ptype on opaque struct instance" }
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timeout { fail "(timeout) ptype on opaque struct" }
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}
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# Ensure that we know the form of an explicit struct foo.
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send "ptype struct foo\n"
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expect {
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-re "ptype struct foo\r
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type = struct foo \{\r
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int a;\r
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int b;\r
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\}\r
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$prompt $" { pass "ptype on opaque struct tagname (dynamically)" }
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-re ".*$prompt $" { fail "ptype on opaque struct" }
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timeout { fail "(timeout) ptype on opaque struct" }
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}
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# Now reload the symbols again so we forget about anything we might
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# have learned reading the symbols during the previous tests.
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if [istarget "mips-idt-*"] then {
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# Restart because IDT/SIM runs out of file descriptors.
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gdb_exit
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gdb_start
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}
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gdb_reinitialize_dir $srcdir/$subdir
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gdb_load $objdir/$subdir/$binfile
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# Run to getfoo, where struct foo is complete.
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if ![runto getfoo] {
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perror "cannot run to breakpoint at getfoo"
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}
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# Ensure that we know what foop is.
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setup_xfail_on_opaque_pointer
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send "whatis foop\n"
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expect {
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-re "whatis foop\r
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type = struct foo \[*\]+\r
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$prompt $" { pass "whatis on opaque struct pointer (dynamically)"}
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-re ".*$prompt $" { fail "whatis on opaque struct pointer" }
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timeout { fail "(timeout) whatis on opaque struct ptr" }
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}
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# Ensure that we know the form of the thing foop points to.
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setup_xfail_on_opaque_pointer
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send "ptype foop\n"
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expect {
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-re "ptype foop\r
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type = struct foo \{\r
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int a;\r
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int b;\r
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\} \[*\]+\r
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$prompt $" { pass "ptype on opaque struct pointer (dynamically)" }
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-re ".*$prompt $" { fail "ptype on opaque struct *" }
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timeout { fail "(timeout) ptype on opaque struct *" }
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}
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send "whatis afoo\n"
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expect {
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-re "whatis afoo\r
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type = struct foo\r
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$prompt $" { pass "whatis on opaque struct instance (dynamically)" }
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-re ".*$prompt $" { fail "whatis on opaque struct" }
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timeout { fail "(timeout) whatis on opaque struct" }
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}
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# Ensure that we know the form of afoo, an instance of a struct foo.
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send "ptype afoo\n"
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expect {
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-re "ptype afoo\r
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type = struct foo \{\r
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int a;\r
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int b;\r
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\}\r
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$prompt $" { pass "ptype on opaque struct instance (dynamically)" }
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-re ".*$prompt $" { fail "ptype on opaque struct instance" }
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timeout { fail "(timeout) ptype on opaque struct" }
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}
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# Ensure that we know the form of an explicit struct foo.
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send "ptype struct foo\n"
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expect {
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-re "ptype struct foo\r
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type = struct foo \{\r
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int a;\r
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int b;\r
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\}\r
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$prompt $" { pass "ptype on opaque struct tagname (dynamically)" }
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-re ".*$prompt $" { fail "ptype on opaque struct" }
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timeout { fail "(timeout) ptype on opaque struct" }
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}
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