TheRock/debug-tools/rocgdb/source/gdb/testsuite/gdb.rocm/aspace-user-input.exp

# Copyright (C) 2021-2024 Free Software Foundation, Inc.
# Copyright (C) 2021-2024 Advanced Micro Devices, Inc. All rights reserved.

# This file is part of GDB.

# 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 user input using '#' syntax for creating a segment address in
# the specified address space.

load_lib rocm.exp

require allow_hip_tests
# The debug behavior this test checks (inspecting device locals
# and/or single-stepping) is not reliable on optimized device
# code, so skip it for optimized builds.
require no_optimized_code

standard_testfile bit-extract.cpp

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

with_rocm_gpu_lock {

if ![runto_main] {
    fail "can't run to main"
    return -1
}

# Set breakpoint in device code.
gdb_breakpoint "bit_extract_kernel" "allow-pending"
gdb_continue_to_breakpoint "bit_extract_kernel"

# Simple pointer manipulation.
gdb_test "print private_lane#0x0" " = \\(void \\*\\) private_lane#0x0"
gdb_test "print/d private_lane#0x0" " = private_lane#0"
gdb_test "print/o private_lane#0x8" " = private_lane#010"
gdb_test "print private_lane#0xffffffff" " = \\(void \\*\\) private_lane#0xffffffff"

gdb_test_no_output "set var \$addr = 0xffffffff"
gdb_test "print private_lane#\$addr" " = \\(void \\*\\) private_lane#0xffffffff"

gdb_test "print gibberish#0x123" \
    "Address space gibberish not recognised by the architecture"

# Fortran accepts the '#' operator.
set f_ptr [string_to_regexp {(PTR TO -> ( void ))}]
gdb_test "with language fortran -- print private_lane#0x0" \
    " = $f_ptr private_lane#0x0\r\n.*"
gdb_test "with language fortran -- print gibberish#0x123" \
    "Address space gibberish not recognised by the architecture"

# Save the register value, so we don't break the execution.
gdb_test_no_output "set var \$temp = \$s32"

gdb_test_no_output "set var \$s32 = 0x42"
set reg_s32 [get_valueof "/x" "\$s32" "0x42"]
gdb_test "print/x private_lane#\$s32" " = private_lane#$reg_s32"

# Restore the register value.
gdb_test_no_output "set var \$s32 = \$temp"

# Cast to pointer type.
gdb_test "print \(unsigned int \*\) private_lane#0x0" \
	 " = \\(unsigned int \\*\\) private_lane#0x0"
gdb_test "print \(unsigned int \*\) private_lane#\$addr" \
	 " = \\(unsigned int \\*\\) private_lane#0xffffffff"
gdb_test "print \(int \*\) private_lane#0x0" \
	 " = \\(int \\*\\) private_lane#0x0"

# Memory write.
gdb_test "print \*\(unsigned int \*\) private_lane#0x0 = 3" " = 3"
gdb_test "print \*\(unsigned int \*\) private_lane#0x0" " = 3"

gdb_test "print \*\(char \*\) private_lane#0x0 = \'t\'" "\\'t\\'"
gdb_test "print \*\(char \*\) private_lane#0x1 = \'e\'" "\\'e\\'"
gdb_test "print \*\(char \*\) private_lane#0x2 = \'s\'" "\\'s\\'"
gdb_test "print \*\(char \*\) private_lane#0x3 = \'t\'" "\\'t\\'"
gdb_test "print \*\(char \*\) private_lane#0x4 = \'\\0\'" " = 0.*"
gdb_test "print \(char \*\) private_lane#0x0" " = private_lane#0x0 \\\"test\\\""

gdb_test "print \*\(unsigned int \*\) \(private_lane#\$addr + 1\) = 8" " = 8"

# Pointer variables in different address spaces.
gdb_test_no_output "set var \$private_lane_ptr = \(unsigned int \*\) private_lane#0x0"
gdb_test "print \$private_lane_ptr" " = \\(unsigned int \\*\\) private_lane#0x0"

gdb_test_no_output "set var \$private_wave_ptr = \(unsigned int \*\) private_wave#0x0"
gdb_test "print \$private_wave_ptr" \
	 " = \\(unsigned int \\*\\) private_wave#0x0"

# Conversion to integral types.
gdb_test_no_output "set var \$long_long = \(unsigned long long\) private_lane#0x0"

# Two representation of the same test.
gdb_test_no_output "set var \$generic_ptr = \(unsigned int \*\) \$long_long"
gdb_test_no_output "set var \*\$private_lane_ptr = 1"
gdb_test "print \*\$private_lane_ptr" " = 1" "expect one in private_lane"
gdb_test "print \*\$generic_ptr" " = 1" "expect one in generic"

gdb_test_no_output "set var \*\$generic_ptr = 2"
gdb_test "print \*\$generic_ptr" " = 2" "expect two in generic"
gdb_test "print \*\$private_lane_ptr" " = 2" "expect two in private_lane"

gdb_test "print \*\$generic_ptr == \*\$private_lane_ptr" "true"

# Examine memory.
gdb_test "x/1wx private_lane#0x0" \
    "private_lane#0x0:\[ \t\]+$hex"
gdb_test "with language fortran -- x/1wx private_lane#0x0" \
    "private_lane#0x0:\[ \t\]+$hex"

if { [istarget "x86_64-*-*"] } {
    # On x86_64, high address (with the MSB bit set - bit 47 for 4 level page
    # tables and bit 56 for 5 level page table) are sign extended.

    # Regular high address are correctly handled.
    gdb_test "x/x ~0ull" ".*Cannot access memory at address 0xffffffffffffffff"

    # However, addresses with inconsistent bit patterns past the MSB (not all-1
    # nor all-0) are rejected as invalid addresses.
    gdb_test "x/x (1ull << 63) - 1" ".*Invalid address for address space 0: 0x7fffffffffffffff"
}
}