xref: /src/external/gpl3/gdb.old/dist/gdb/testsuite/gdb.base/limited-length.exp

# Copyright 2023-2024 Free Software Foundation, Inc.

# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

# Test GDB's limited array printing.

standard_testfile

if {[prepare_for_testing "failed to prepare" $testfile $srcfile]} {
    return -1
}

if {![runto_main]} {
    perror "couldn't run to breakpoint"
    continue
}

with_test_prefix "with standard max-value size" {
    gdb_test "print large_1d_array" \
	" = \\\{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,\
		12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23,\
		24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35,\
		36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,\
		48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59,\
		60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71,\
		72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83,\
		84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95,\
		96, 97, 98, 99\\\}"
    gdb_test -nonl "output large_1d_array" \
	"\\\{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,\
	     12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23,\
	     24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35,\
	     36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,\
	     48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59,\
	     60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71,\
	     72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83,\
	     84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95,\
	     96, 97, 98, 99\\\}"
    gdb_test "print large_2d_array" \
	" = \\\{\\\{0, 1, 2, 3, 4, 5, 6, 7, 8, 9\\\},\
		\\\{10, 11, 12, 13, 14, 15, 16, 17, 18, 19\\\},\
		\\\{20, 21, 22, 23, 24, 25, 26, 27, 28, 29\\\},\
		\\\{30, 31, 32, 33, 34, 35, 36, 37, 38, 39\\\},\
		\\\{40, 41, 42, 43, 44, 45, 46, 47, 48, 49\\\},\
		\\\{50, 51, 52, 53, 54, 55, 56, 57, 58, 59\\\},\
		\\\{60, 61, 62, 63, 64, 65, 66, 67, 68, 69\\\},\
		\\\{70, 71, 72, 73, 74, 75, 76, 77, 78, 79\\\},\
		\\\{80, 81, 82, 83, 84, 85, 86, 87, 88, 89\\\},\
		\\\{90, 91, 92, 93, 94, 95, 96, 97, 98, 99\\\}\\\}"
    gdb_test -nonl "output large_2d_array" \
	"\\\{\\\{0, 1, 2, 3, 4, 5, 6, 7, 8, 9\\\},\
	     \\\{10, 11, 12, 13, 14, 15, 16, 17, 18, 19\\\},\
	     \\\{20, 21, 22, 23, 24, 25, 26, 27, 28, 29\\\},\
	     \\\{30, 31, 32, 33, 34, 35, 36, 37, 38, 39\\\},\
	     \\\{40, 41, 42, 43, 44, 45, 46, 47, 48, 49\\\},\
	     \\\{50, 51, 52, 53, 54, 55, 56, 57, 58, 59\\\},\
	     \\\{60, 61, 62, 63, 64, 65, 66, 67, 68, 69\\\},\
	     \\\{70, 71, 72, 73, 74, 75, 76, 77, 78, 79\\\},\
	     \\\{80, 81, 82, 83, 84, 85, 86, 87, 88, 89\\\},\
	     \\\{90, 91, 92, 93, 94, 95, 96, 97, 98, 99\\\}\\\}"
}

# Set the max-value-size so we can only print 51 elements.
set elements 51
set int_size [get_valueof "/d" "sizeof(large_1d_array\[0\])" "*unknown*"]
gdb_test_no_output "set max-value-size [expr $int_size * $elements]"

with_test_prefix "with reduced max-value size" {
    gdb_test "print large_1d_array" \
	"\r\nvalue requires $decimal bytes, which is more than max-value-size"
    gdb_test "output large_1d_array" \
	"\r\nvalue requires $decimal bytes, which is more than max-value-size"
    gdb_test "print large_2d_array" \
	"\r\nvalue requires $decimal bytes, which is more than max-value-size"
    gdb_test "output large_2d_array" \
	"\r\nvalue requires $decimal bytes, which is more than max-value-size"
}

gdb_test_no_output "set print elements 3"

with_test_prefix "with reduced print elements" {
    gdb_test "print large_1d_array" \
	" = \\\{0, 1, 2\\.\\.\\.\\\}"
    gdb_test -nonl "output large_1d_array" \
	"\\\{0, 1, 2\\.\\.\\.\\\}"

    gdb_test "print \$" \
	" = \\\{0, 1, 2\\.\\.\\.\\\}" \
	"print large_1d_array from history"
    gdb_test -nonl "output \$\$" \
	"\\\{0, 1, 2\\.\\.\\.\\\}" \
	"output large_1d_array from history"

    gdb_test "print large_2d_array" \
	" = \\\{\\\{0, 1, 2\\.\\.\\.\\\}, \\\{10, 11, 12\\.\\.\\.\\\},\
	    \\\{20, 21, 22\\.\\.\\.\\\}\\.\\.\\.\\\}"
    gdb_test -nonl "output large_2d_array" \
	"\\\{\\\{0, 1, 2\\.\\.\\.\\\}, \\\{10, 11, 12\\.\\.\\.\\\},\
	 \\\{20, 21, 22\\.\\.\\.\\\}\\.\\.\\.\\\}"

    gdb_test "print \$" \
	" = \\\{\\\{0, 1, 2\\.\\.\\.\\\}, \\\{10, 11, 12\\.\\.\\.\\\},\
	    \\\{20, 21, 22\\.\\.\\.\\\}\\.\\.\\.\\\}" \
	"print large_2d_array from history"
    gdb_test -nonl "output \$\$" \
	"\\\{\\\{0, 1, 2\\.\\.\\.\\\}, \\\{10, 11, 12\\.\\.\\.\\\},\
	 \\\{20, 21, 22\\.\\.\\.\\\}\\.\\.\\.\\\}" \
	"output large_2d_array from history"
}

gdb_test_no_output "set print elements $elements"

with_test_prefix "with print elements matching max-value size" {
    gdb_test "print \$\$2" \
	" = \\\{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,\
		12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23,\
		24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35,\
		36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,\
		48, 49, 50\\.\\.\\.\\\}" \
	"print large_1d_array from history"
    gdb_test -nonl "output \$\$3" \
	"\\\{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,\
	     12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23,\
	     24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35,\
	     36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,\
	     48, 49, 50\\.\\.\\.\\\}" \
	"output large_1d_array from history"

    gdb_test "print \$\$2" \
	" = \\\{\\\{0, 1, 2, 3, 4, 5, 6, 7, 8, 9\\\},\
		\\\{10, 11, 12, 13, 14, 15, 16, 17, 18, 19\\\},\
		\\\{20, 21, 22, 23, 24, 25, 26, 27, 28, 29\\\},\
		\\\{30, 31, 32, 33, 34, 35, 36, 37, 38, 39\\\},\
		\\\{40, 41, 42, 43, 44, 45, 46, 47, 48, 49\\\},\
		\\\{50(?:, <unavailable>)\{9\}\\\}(?:,\
		\\\{<unavailable>(?:, <unavailable>)\{9\}\\\})\{4\}\\\}" \
	"print large_2d_array from history"
    gdb_test -nonl "output \$\$3" \
	"\\\{\\\{0, 1, 2, 3, 4, 5, 6, 7, 8, 9\\\},\
	     \\\{10, 11, 12, 13, 14, 15, 16, 17, 18, 19\\\},\
	     \\\{20, 21, 22, 23, 24, 25, 26, 27, 28, 29\\\},\
	     \\\{30, 31, 32, 33, 34, 35, 36, 37, 38, 39\\\},\
	     \\\{40, 41, 42, 43, 44, 45, 46, 47, 48, 49\\\},\
	     \\\{50(?:, <unavailable>)\{9\}\\\}(?:,\
	     \\\{<unavailable>(?:, <unavailable>)\{9\}\\\})\{4\}\\\}" \
	"output large_2d_array from history"
}

gdb_test_no_output "set max-value-size unlimited"
gdb_test_no_output "set print elements unlimited"
gdb_test_no_output "set print repeats 3"

with_test_prefix "with unlimited print elements" {
    gdb_test "print \$\$" \
	" = \\\{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,\
		12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23,\
		24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35,\
		36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,\
		48, 49, 50, <unavailable> <repeats 49 times>\\\}" \
	"print large_1d_array from history"
    gdb_test -nonl "output \$\$2" \
	"\\\{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,\
	     12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23,\
	     24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35,\
	     36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,\
	     48, 49, 50, <unavailable> <repeats 49 times>\\\}" \
	"output large_1d_array from history"

    gdb_test "print \$\$" \
	" = \\\{\\\{0, 1, 2, 3, 4, 5, 6, 7, 8, 9\\\},\
		\\\{10, 11, 12, 13, 14, 15, 16, 17, 18, 19\\\},\
		\\\{20, 21, 22, 23, 24, 25, 26, 27, 28, 29\\\},\
		\\\{30, 31, 32, 33, 34, 35, 36, 37, 38, 39\\\},\
		\\\{40, 41, 42, 43, 44, 45, 46, 47, 48, 49\\\},\
		\\\{50, <unavailable> <repeats 9 times>\\\},\
		\\\{<unavailable> <repeats 10 times>\\\}\
		<repeats 4 times>\\\}" \
	"print large_2d_array from history"
    gdb_test -nonl "output \$\$2" \
	"\\\{\\\{0, 1, 2, 3, 4, 5, 6, 7, 8, 9\\\},\
	     \\\{10, 11, 12, 13, 14, 15, 16, 17, 18, 19\\\},\
	     \\\{20, 21, 22, 23, 24, 25, 26, 27, 28, 29\\\},\
	     \\\{30, 31, 32, 33, 34, 35, 36, 37, 38, 39\\\},\
	     \\\{40, 41, 42, 43, 44, 45, 46, 47, 48, 49\\\},\
	     \\\{50, <unavailable> <repeats 9 times>\\\},\
	     \\\{<unavailable> <repeats 10 times>\\\}\
	     <repeats 4 times>\\\}" \
	"output large_2d_array from history"

    gdb_test "print \$\[4\]" \
	" = \\\{40, 41, 42, 43, 44, 45, 46, 47, 48, 49\\\}" \
	"print available large_2d_array row from history"
    gdb_test -nonl "output \$\$\[4\]" \
	"\\\{40, 41, 42, 43, 44, 45, 46, 47, 48, 49\\\}" \
	"output available large_2d_array row from history"

    gdb_test "print \$\$\[5\]" \
	" = \\\{50, <unavailable> <repeats 9 times>\\\}" \
	"print partially available large_2d_array row from history"
    gdb_test -nonl "output \$\$2\[5\]" \
	"\\\{50, <unavailable> <repeats 9 times>\\\}" \
	"output partially available large_2d_array row from history"

    gdb_test "print \$\$2\[6\]" \
	" = <unavailable>" \
	"print unavailable large_2d_array row from history"
    gdb_test -nonl "output \$\$3\[6\]" \
	"<unavailable>" \
	"output unavailable large_2d_array row from history"

    gdb_test "print \$\$3\[5\]\[0\]" \
	" = 50" \
	"print available large_2d_array element from history"
    gdb_test -nonl "output \$\$4\[5\]\[0\]" \
	"50" \
	"output available large_2d_array element from history"

    gdb_test "print \$\$4\[5\]\[1\]" \
	" = <unavailable>" \
	"print unavailable large_2d_array element from history"
    gdb_test -nonl "output \$\$5\[5\]\[1\]" \
	"<unavailable>" \
	"output unavailable large_2d_array element from history"

    gdb_test "print \$\$5\[5\]\[0\] + \$\$5\[5\]\[1\]" \
	"value is not available" \
	"print expression referring unavailable element from history"
    gdb_test "output \$\$5\[5\]\[0\] + \$\$5\[5\]\[1\]" \
	"value is not available" \
	"output expression referring unavailable element from history"
}

gdb_test_no_output "set max-value-size 10000"
gdb_test_no_output "set print elements 200"

gdb_test "print large_empty_string" \
    " = \\\{0 '\\\\000' <repeats 10000 times>, <unavailable> <repeats 90000 times>\\\}" \
    "print large empty string which is not fully available"
gdb_test -nonl "output large_empty_string" \
    "\\\{0 '\\\\000' <repeats 10000 times>, <unavailable> <repeats 90000 times>\\\}" \
    "output large empty string which is not fully available"