168 lines
5.8 KiB
Plaintext
168 lines
5.8 KiB
Plaintext
# Copyright (C) 2014-2017 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 is part of the GDB testsuite.
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# It tests GDB provided ports.
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load_lib gdb-guile.exp
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standard_testfile
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if { [prepare_for_testing "failed to prepare" ${testfile} ${srcfile}] } {
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return
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}
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# Skip all tests if Guile scripting is not enabled.
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if { [skip_guile_tests] } { continue }
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if ![gdb_guile_runto_main] {
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return
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}
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gdb_reinitialize_dir $srcdir/$subdir
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gdb_install_guile_utils
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gdb_install_guile_module
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gdb_scm_test_silent_cmd "guile (use-modules (rnrs io ports) (rnrs bytevectors))" \
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"import (rnrs io ports) (rnrs bytevectors)"
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gdb_test "guile (print (stdio-port? 42))" "= #f"
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gdb_test "guile (print (stdio-port? (%make-void-port \"r\")))" "= #f"
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gdb_test "guile (print (stdio-port? (input-port)))" "= #t"
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gdb_test "guile (print (stdio-port? (output-port)))" "= #t"
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gdb_test "guile (print (stdio-port? (error-port)))" "= #t"
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# Test memory port open/close.
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proc test_port { mode } {
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with_test_prefix "basic $mode tests" {
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gdb_test_no_output "guile (define my-port (open-memory #:mode \"$mode\"))" \
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"create memory port"
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gdb_test "guile (print (memory-port? my-port))" "= #t"
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switch -glob $mode {
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"r+*" {
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gdb_test "guile (print (input-port? my-port))" "= #t"
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gdb_test "guile (print (output-port? my-port))" "= #t"
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}
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"r*" {
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gdb_test "guile (print (input-port? my-port))" "= #t"
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gdb_test "guile (print (output-port? my-port))" "= #f"
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}
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"w*" {
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gdb_test "guile (print (input-port? my-port))" "= #f"
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gdb_test "guile (print (output-port? my-port))" "= #t"
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}
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default {
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error "bad test mode"
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}
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}
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gdb_test "guile (print (port-closed? my-port))" "= #f" \
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"test port-closed? before it's closed"
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gdb_test "guile (print (close-port my-port))" "= #t"
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gdb_test "guile (print (port-closed? my-port))" "= #t" \
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"test port-closed? after it's closed"
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}
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}
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set port_variations { r w r+ rb wb r+b r0 w0 r+0 }
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foreach variation $port_variations {
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test_port $variation
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}
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# Test read/write of memory ports.
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proc test_mem_port_rw { kind } {
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if { "$kind" == "buffered" } {
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set buffered 1
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} else {
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set buffered 0
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}
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with_test_prefix $kind {
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if $buffered {
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set mode "r+"
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} else {
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set mode "r+0"
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}
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gdb_test_no_output "guile (define rw-mem-port (open-memory #:mode \"$mode\"))" \
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"create r/w memory port"
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gdb_test "guile (print rw-mem-port)" \
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"#<input-output: gdb:memory-port 0x0-0xf+>"
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gdb_test_no_output "guile (define sp-reg (parse-and-eval \"\$sp\"))" \
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"get sp reg"
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# Note: Only use $sp_reg for gdb_test result matching, don't use it in
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# gdb commands. Otherwise transcript.N becomes unusable.
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set sp_reg [get_integer_valueof "\$sp" 0]
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gdb_test_no_output "guile (define byte-at-sp (parse-and-eval \"*(char*) \$sp\"))" \
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"save current value at sp"
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# Pass the result of parse-and-eval through value-fetch-lazy!,
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# otherwise the value gets left as a lazy reference to memory, which
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# when re-evaluated after we flush the write will yield the newly
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# written value. PR 18175
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gdb_test_no_output "guile (value-fetch-lazy! byte-at-sp)" \
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"un-lazyify byte-at-sp"
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gdb_test "guile (print (seek rw-mem-port (value->integer sp-reg) SEEK_SET))" \
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"= $sp_reg" \
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"seek to \$sp"
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gdb_test_no_output "guile (define old-value (value->integer byte-at-sp))" \
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"define old-value"
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gdb_test_no_output "guile (define new-value (logxor old-value 1))" \
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"define new-value"
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gdb_test "guile (print (put-bytevector rw-mem-port (make-bytevector 1 new-value)))" \
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"= #<unspecified>"
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if $buffered {
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# Value shouldn't be in memory yet.
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gdb_test "guile (print (value=? (parse-and-eval \"*(char*) \$sp\") byte-at-sp))" \
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"= #t" \
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"test byte at sp, before flush"
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gdb_test_no_output "guile (force-output rw-mem-port)" \
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"flush port"
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}
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# Value should be in memory now.
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gdb_test "guile (print (value=? (parse-and-eval \"*(char*) \$sp\") byte-at-sp))" \
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"= #f" \
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"test byte at sp, after flush"
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# Restore the value for cleanliness sake, and to verify close-port
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# flushes the buffer.
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gdb_test "guile (print (seek rw-mem-port (value->integer sp-reg) SEEK_SET))" \
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"= $sp_reg" \
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"seek to \$sp for restore"
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gdb_test "guile (print (put-bytevector rw-mem-port (make-bytevector 1 old-value)))" \
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"= #<unspecified>"
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gdb_test "guile (print (close-port rw-mem-port))" \
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"= #t"
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gdb_test "guile (print (value=? (parse-and-eval \"*(char*) \$sp\") byte-at-sp))" \
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"= #t" \
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"test byte at sp, after close"
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}
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}
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test_mem_port_rw buffered
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test_mem_port_rw unbuffered
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# Test zero-length memory ports.
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gdb_test_no_output "guile (define zero-mem-port (open-memory #:start 0 #:size 0 #:mode \"r+\"))" \
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"create zero length memory port"
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gdb_test "guile (print (read-char zero-mem-port))" \
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"= #<eof>"
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gdb_test "guile (print (write-char #\\a zero-mem-port))" \
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"ERROR: .*Out of range: writing beyond end of memory range.*Error while executing Scheme code."
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gdb_test "guile (print (get-bytevector-n zero-mem-port 0))" \
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"= #vu8\\(\\)"
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gdb_test "guile (print (put-bytevector zero-mem-port (make-bytevector 0)))" \
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"= #<unspecified>"
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gdb_test "guile (print (close-port zero-mem-port))" "= #t"
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