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204 lines
6.5 KiB
Plaintext
204 lines
6.5 KiB
Plaintext
# Copyright 1992-2018 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 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 <http://www.gnu.org/licenses/>.
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# This file was written by Fred Fish. (fnf@cygnus.com)
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# Create and source the file that provides information about the compiler
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# used to compile the test case.
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if [get_compiler_info] {
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return -1
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}
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standard_testfile opaque0.c opaque1.c
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if {[prepare_for_testing "failed to prepare" $testfile \
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[list $srcfile $srcfile2] debug]} {
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return -1
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}
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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 (FIXME: Is this still true; I suspect maybe not).
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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 "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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# This seems easier than trying to track different versions of xlc; I'm
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# not sure there is much rhyme or reason regarding which tests it fails
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# and which ones it passes.
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if {[istarget "rs6000-*-aix*"] && !$gcc_compiled} then {
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warning "xfails in opaque.exp may not be set up correctly for xlc"
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}
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setup_xfail_on_opaque_pointer
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gdb_test "whatis foop" \
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"type = struct foo \[*\]+" \
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"whatis on opaque struct pointer (statically)"
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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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if {!$gcc_compiled} then { setup_xfail "rs6000-*-*" }
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gdb_test "ptype foop" \
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"type = struct foo \{\[\r\n\]+ int a;\[\r\n\]+ int b;\[\r\n\]+\} \[*\]+" \
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"ptype on opaque struct pointer (statically)"
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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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gdb_test "whatis afoo" \
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"type = struct foo" \
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"whatis on opaque struct instance (statically)"
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# Ensure that we know the form of "afoo".
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gdb_test "ptype afoo" \
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"type = struct foo \{\[\r\n\]+ int a;\[\r\n\]+ int b;\[\r\n\]+\}" \
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"ptype on opaque struct instance (statically)"
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# Ensure that we know what a struct foo looks like.
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gdb_test "ptype struct foo" \
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"type = struct foo \{\[\r\n\]+ int a;\[\r\n\]+ int b;\[\r\n\]+\}" \
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"ptype on opaque struct tagname (statically)"
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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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gdb_reinitialize_dir $srcdir/$subdir
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gdb_load ${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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gdb_test "whatis foop" \
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"type = struct foo \[*\]+" \
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"whatis on opaque struct pointer (dynamically)"
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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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if {!$gcc_compiled} then { setup_xfail "rs6000-*-*" }
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gdb_test "ptype foop" \
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"type = struct foo \{\[\r\n\]+ int a;\[\r\n\]+ int b;\[\r\n\]+\} \[*\]+" \
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"ptype on opaque struct pointer (dynamically) 1"
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gdb_test "whatis afoo" \
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"type = struct foo" \
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"whatis on opaque struct instance (dynamically) 1"
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# Ensure that we know the form of afoo, an instance of a struct foo.
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gdb_test "ptype afoo" \
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"type = struct foo \{\[\r\n\]+ int a;\[\r\n\]+ int b;\[\r\n\]+\}" \
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"ptype on opaque struct instance (dynamically) 1"
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# Ensure that we know the form of an explicit struct foo.
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if {!$gcc_compiled} then { setup_xfail "rs6000-*-*" }
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gdb_test "ptype struct foo" \
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"type = struct foo \{\[\r\n\]+ int a;\[\r\n\]+ int b;\[\r\n\]+\}" \
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"ptype on opaque struct tagname (dynamically) 1"
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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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gdb_reinitialize_dir $srcdir/$subdir
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gdb_load ${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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gdb_test "whatis foop" \
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"type = struct foo \[*\]+" \
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"whatis on opaque struct pointer (dynamically) 1"
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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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gdb_test "ptype foop" \
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"type = struct foo \{\[\r\n\]+ int a;\[\r\n\]+ int b;\[\r\n\]+\} \[*\]+" \
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"ptype on opaque struct pointer (dynamically) 2"
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gdb_test "whatis afoo" \
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"type = struct foo" \
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"whatis on opaque struct instance (dynamically) 2"
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# Ensure that we know the form of afoo, an instance of a struct foo.
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gdb_test "ptype afoo" \
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"type = struct foo \{\[\r\n\]+ int a;\[\r\n\]+ int b;\[\r\n\]+\}" \
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"ptype on opaque struct instance (dynamically) 2"
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# Ensure that we know the form of an explicit struct foo.
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gdb_test "ptype struct foo" \
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"type = struct foo \{\[\r\n\]+ int a;\[\r\n\]+ int b;\[\r\n\]+\}" \
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"ptype on opaque struct tagname (dynamically) 2"
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