gdb/testsuite/gdb.base/find.exp

   1 # Copyright 2008-2024 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 3 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, see <http://www.gnu.org/licenses/>.
  15
  16 # This tests the find command.
  17
  18 standard_testfile .c
  19
  20 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug nowarnings}] != "" } {
  21     untested "failed to compile"
  22     return -1
  23 }
  24
  25 clean_restart ${binfile}
  26
  27 gdb_test "break $srcfile:stop_here" \
  28     "Breakpoint.*at.* file .*$srcfile, line.*" \
  29     "breakpoint function in file"
  30
  31 gdb_run_cmd
  32 gdb_test "" "Breakpoint \[0-9\]+,.*stop_here.* at .*$srcfile:.*" "run until function breakpoint"
  33
  34 # We've now got the target program in a state where we can test "find".
  35
  36 set hex_number {0x[0-9a-fA-F][0-9a-fA-F]*}
  37 set history_prefix {[$][0-9]* = }
  38 set newline "\[\r\n\]*"
  39 set pattern_not_found "${newline}Pattern not found\[.\]"
  40 set one_pattern_found "${newline}1 pattern found\[.\]"
  41 set two_patterns_found "${newline}2 patterns found\[.\]"
  42
  43 # Test string pattern.
  44
  45 # For when the testcase is built in C++ mode.
  46 gdb_test_no_output "set print asm-demangle on"
  47
  48 gdb_test_no_output "set *(int32_t*) &int8_search_buf\[10\] = 0x61616161" ""
  49
  50 gdb_test "find &int8_search_buf\[0\], +sizeof(int8_search_buf), 'a', 'a', 'a'" \
  51     "${hex_number}.*<int8_search_buf\\+10>${newline}${hex_number}.*<int8_search_buf\\+11>${two_patterns_found}" \
  52     "find string pattern"
  53
  54 # Test not finding pattern because search range too small, with
  55 # potential find at the edge of the range.
  56
  57 gdb_test "find &int8_search_buf\[0\], +10+3, \"aaaa\"" \
  58     "${pattern_not_found}" \
  59     "pattern not found at end of range"
  60
  61 # Increase the search range by 1 and we should find the pattern.
  62
  63 gdb_test "find &int8_search_buf\[0\], +10+3+1, 'a', 'a', 'a', 'a'" \
  64     "${hex_number}.*<int8_search_buf\\+10>${one_pattern_found}" \
  65     "pattern found at end of range"
  66
  67 # Test max-count, $_ and $numfound.
  68
  69 gdb_test "find /1 &int8_search_buf\[0\], +sizeof(int8_search_buf), 'a', 'a', 'a'" \
  70     "${hex_number}.*<int8_search_buf\\+10>${one_pattern_found}" \
  71     "max-count"
  72
  73 gdb_test "print \$_" \
  74     "${history_prefix}.*${hex_number} <int8_search_buf\\+10>" \
  75     "\$_"
  76
  77 gdb_test "print \$numfound" \
  78     "${history_prefix}1" \
  79     "\$numfound"
  80
  81 # Test max-count with size-char.
  82 # They can be specified in either order.
  83
  84 gdb_test "find /1b &int8_search_buf\[0\], +sizeof(int8_search_buf), 0x61, 0x61, 0x61" \
  85     "${hex_number}.*<int8_search_buf\\+10>${one_pattern_found}" \
  86     "size,max-count, /1b"
  87
  88 gdb_test "find /b1 &int8_search_buf\[0\], +sizeof(int8_search_buf), 0x61, 0x61, 0x61" \
  89     "${hex_number}.*<int8_search_buf\\+10>${one_pattern_found}" \
  90     "size,max-count, /b1"
  91
  92 gdb_test "find /b /1 &int8_search_buf\[0\], +sizeof(int8_search_buf), 0x61, 0x61, 0x61" \
  93     "${hex_number}.*<int8_search_buf\\+10>${one_pattern_found}" \
  94     "size,max-count, /b/1"
  95
  96 gdb_test "find /1 /b &int8_search_buf\[0\], +sizeof(int8_search_buf), 0x61, 0x61, 0x61" \
  97     "${hex_number}.*<int8_search_buf\\+10>${one_pattern_found}" \
  98     "size,max-count, /1/b"
  99
 100 # Test specifying end address.
 101
 102 gdb_test "find /b &int8_search_buf\[0\], &int8_search_buf\[0\]+sizeof(int8_search_buf), 0x61, 0x61, 0x61, 0x61" \
 103     "${hex_number}.*<int8_search_buf\\+10>${one_pattern_found}" \
 104     "find byte pattern with end address"
 105
 106 # Test 16-bit pattern.
 107
 108 gdb_test_no_output "set int16_search_buf\[10\] = 0x1234" ""
 109
 110 gdb_test "find /h &int16_search_buf\[0\], +sizeof(int16_search_buf), 0x1234" \
 111     "${hex_number}.*<int16_search_buf\\+20>${one_pattern_found}" \
 112     "find 16-bit pattern /h"
 113
 114 gdb_test "find &int16_search_buf\[0\], +sizeof(int16_search_buf), (int16_t) 0x1234" \
 115     "${hex_number}.*<int16_search_buf\\+20>${one_pattern_found}" \
 116     "find 16-bit pattern cast"
 117
 118 # Test 32-bit pattern.
 119
 120 gdb_test_no_output "set int32_search_buf\[10\] = 0x12345678" ""
 121
 122 gdb_test "find &int32_search_buf\[0\], +sizeof(int32_search_buf), (int32_t) 0x12345678" \
 123     "${hex_number}.*<int32_search_buf\\+40>${one_pattern_found}" \
 124     "find 32-bit pattern cast"
 125
 126 gdb_test "find /w &int32_search_buf\[0\], +sizeof(int32_search_buf), 0x12345678" \
 127     "${hex_number}.*<int32_search_buf\\+40>${one_pattern_found}" \
 128     "find 32-bit pattern /w"
 129
 130 # Test 64-bit pattern.
 131
 132 gdb_test_no_output "set int64_search_buf\[10\] = 0xfedcba9876543210LL" ""
 133
 134 gdb_test "find &int64_search_buf\[0\], +sizeof(int64_search_buf), (int64_t) 0xfedcba9876543210LL" \
 135     "${hex_number}.*<int64_search_buf\\+80>${one_pattern_found}" \
 136     "find 64-bit pattern cast"
 137
 138 gdb_test "find /g &int64_search_buf\[0\], +sizeof(int64_search_buf), 0xfedcba9876543210LL" \
 139     "${hex_number}.*<int64_search_buf\\+80>${one_pattern_found}" \
 140     "find 64-bit pattern /g"
 141
 142 # Test mixed-sized patterns.
 143
 144 gdb_test_no_output "set *(int8_t*) &search_buf\[10\] = 0x62" ""
 145 gdb_test_no_output "set *(int16_t*) &search_buf\[11\] = 0x6363" ""
 146 gdb_test_no_output "set *(int32_t*) &search_buf\[13\] = 0x64646464" ""
 147
 148 gdb_test "find &search_buf\[0\], +100, (int8_t) 0x62, (int16_t) 0x6363, (int32_t) 0x64646464" \
 149     "${hex_number}${one_pattern_found}" \
 150     "find mixed-sized pattern"
 151
 152 # Test search spanning a large range, in the particular case of native
 153 # targets, test the search spanning multiple chunks.
 154 # Remote targets may implement the search differently.
 155
 156 set CHUNK_SIZE 16000 ;# see findcmd.c
 157
 158 gdb_test_no_output "set *(int32_t*) &search_buf\[0*${CHUNK_SIZE}+100\] = 0x12345678" ""
 159 gdb_test_no_output "set *(int32_t*) &search_buf\[1*${CHUNK_SIZE}+100\] = 0x12345678" ""
 160
 161 gdb_test "find /w search_buf, +search_buf_size, 0x12345678" \
 162     "${hex_number}${newline}${hex_number}${two_patterns_found}" \
 163     "search spanning large range"
 164
 165 # For native targets, test a pattern straddling a chunk boundary.
 166
 167 if [isnative] {
 168     gdb_test_no_output "set *(int32_t*) &search_buf\[${CHUNK_SIZE}-1\] = 0xfdb97531" ""
 169     gdb_test "find /w search_buf, +search_buf_size, 0xfdb97531" \
 170     "${hex_number}${one_pattern_found}" \
 171     "find pattern straddling chunk boundary"
 172 }
 173
 174 # Check GDB buffer overflow.
 175 gdb_test "find int64_search_buf, +64/8*100, int64_search_buf" " <int64_search_buf>\r\n1 pattern found\\."