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136 lines
5.1 KiB
Plaintext
136 lines
5.1 KiB
Plaintext
# Copyright 2014-2018 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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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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# Disassemble one instruction at pc and verify the result.
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proc test_disassemble_1 { name address extra_args } {
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with_test_prefix $name {
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gdb_scm_test_silent_cmd "guile (define insn-list (arch-disassemble arch $address $extra_args #:size 1 #:count 1))" \
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"disassemble"
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gdb_test "guile (print (length insn-list))" \
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"= 1" "test number of instructions"
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gdb_scm_test_silent_cmd "guile (define insn (car insn-list))" \
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"get instruction"
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# Verify all the fields are present.
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gdb_test "guile (print (->bool (assq-ref insn 'address)))" \
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"= #t" "test key address"
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gdb_test "guile (print (->bool (assq-ref insn 'asm)))" \
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"= #t" "test key asm"
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gdb_test "guile (print (->bool (assq-ref insn 'length)))" \
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"= #t" "test key length"
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# Verify the correct address is used.
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gdb_test "guile (print (= $address (assq-ref insn 'address)))" \
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"= #t" "verify correct address"
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}
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}
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gdb_scm_test_silent_cmd "guile (define frame (selected-frame))" "get frame"
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gdb_scm_test_silent_cmd "guile (define arch (frame-arch frame))" "get arch"
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gdb_scm_test_silent_cmd "guile (define pc (frame-pc frame))" "get pc"
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gdb_test "guile (print (arch-disassemble arch pc #:size 0))" \
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"= \\(\\)" "disassemble, zero size"
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gdb_test "guile (print (arch-disassemble arch pc #:count 0))" \
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"= \\(\\)" "disassemble, zero count"
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gdb_scm_test_silent_cmd "guile (define insn-list1 (arch-disassemble arch pc #:size 1 #:count 1))" \
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"disassemble"
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gdb_scm_test_silent_cmd "guile (define insn-list2 (arch-disassemble arch pc #:size 1))" \
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"disassemble, no count"
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gdb_scm_test_silent_cmd "guile (define insn-list3 (arch-disassemble arch pc #:count 1))" \
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"disassemble, no end"
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gdb_scm_test_silent_cmd "guile (define insn-list4 (arch-disassemble arch pc))" \
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"disassemble, no end no count"
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gdb_test "guile (print (length insn-list1))" \
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"= 1" "test number of instructions 1"
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gdb_test "guile (print (length insn-list2))" \
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"= 1" "test number of instructions 2"
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gdb_test "guile (print (length insn-list3))" \
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"= 1" "test number of instructions 3"
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gdb_test "guile (print (length insn-list4))" \
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"= 1" "test number of instructions 4"
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test_disassemble_1 "basic" "pc" ""
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if { ![is_address_zero_readable] } {
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# Negative test
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gdb_test "guile (arch-disassemble arch 0 #:size 1)" \
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"ERROR: Cannot access memory at address 0x.*" "test bad memory access"
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}
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# Test disassembly through a port.
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gdb_scm_test_silent_cmd "guile (define mem (open-memory))" \
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"open memory port"
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test_disassemble_1 "memory-port" "pc" "#:port mem"
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gdb_scm_test_silent_cmd "guile (define insn-list-mem (arch-disassemble arch pc #:port mem #:size 1 #:count 1))" \
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"disassemble via memory port"
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# Test memory error reading from port.
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gdb_scm_test_silent_cmd "guile (define mem1 (open-memory #:start pc #:size 4))" \
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"open restricted range memory port"
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# The x86 disassembler tries to be clever and will print "byte 0x42" if
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# there is insufficient memory for the entire instruction.
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# So we pass "#:count 5" to ensure the disassembler tries to read beyond
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# the end of the memory range.
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gdb_test "guile (arch-disassemble arch pc #:port mem1 #:count 5 #:offset pc)" \
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"ERROR: Cannot access memory at address 0x.*" \
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"test bad memory access from port"
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# Test disassembly of a bytevector.
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gdb_scm_test_silent_cmd "guile (use-modules (rnrs io ports))" \
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"import (rnrs io ports)"
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# First fetch the length of the instruction at $pc.
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gdb_scm_test_silent_cmd "guile (define insn-list-for-bv (arch-disassemble arch pc))" \
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"get insn for bytevector"
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gdb_test_no_output "guile (define insn-length (assq-ref (car insn-list-for-bv) 'length))" \
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"get insn length for bytevector"
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# Read the insn into a bytevector.
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gdb_test_no_output "guile (define insn-bv (get-bytevector-n (open-memory #:start pc #:size insn-length) insn-length))" \
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"read insn into bytevector"
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# Disassemble the bytevector.
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gdb_scm_test_silent_cmd "guile (define insn-list-from-bv (arch-disassemble arch pc #:port (open-bytevector-input-port insn-bv) #:offset pc))" \
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"disassemble bytevector"
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gdb_test "guile (print (equal? insn-list-for-bv insn-list-from-bv))" \
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"= #t" "verify bytevector disassembly"
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