diff options
| -rw-r--r-- | gdb/testsuite/gdb.python/py-jit.c | 56 | ||||
| -rw-r--r-- | gdb/testsuite/gdb.python/py-jit.exp | 93 | ||||
| -rw-r--r-- | gdb/testsuite/gdb.python/py-jit.py | 46 |
3 files changed, 195 insertions, 0 deletions
diff --git a/gdb/testsuite/gdb.python/py-jit.c b/gdb/testsuite/gdb.python/py-jit.c new file mode 100644 index 0000000..1a52f82 --- /dev/null +++ b/gdb/testsuite/gdb.python/py-jit.c @@ -0,0 +1,56 @@ +/* Copyright (C) 2022-2022 Free Software Foundation, Inc. + + 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/>. */ + +#include <assert.h> +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include <string.h> +#include <unistd.h> + +#include <sys/mman.h> + +/* "JIT-ed" function, with the prototype `long (long, long)`. */ +static const unsigned char jit_function_add_code[] = { + 0x48, 0x01, 0xfe, /* add %rdi,%rsi */ + 0x48, 0x89, 0xf0, /* mov %rsi,%rax */ + 0xc3, /* retq */ +}; + +void jit_register_code (char * name, uintptr_t code, size_t size) +{ + +} + +int +main (int argc, char **argv) +{ + void *code = mmap (NULL, getpagesize (), PROT_WRITE | PROT_EXEC, + MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); + assert (code != MAP_FAILED); + + /* "Compile" jit_function_add. */ + memcpy (code, jit_function_add_code, + sizeof (jit_function_add_code)); + + jit_register_code("jit_function_add", (uintptr_t)code, sizeof (jit_function_add_code)); + + assert (((long (*)(long, long))code)(1,5) == 6); /* breakpoint 1 line */ + + + return 0; +} diff --git a/gdb/testsuite/gdb.python/py-jit.exp b/gdb/testsuite/gdb.python/py-jit.exp new file mode 100644 index 0000000..266ed23 --- /dev/null +++ b/gdb/testsuite/gdb.python/py-jit.exp @@ -0,0 +1,93 @@ +# Copyright (C) 2010-2022 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/>. + +# This file is part of the GDB testsuite. It test the Python API to +# create dynamic (JIT) symbols. + +load_lib gdb-python.exp + +standard_testfile + +if { [prepare_for_testing "failed to prepare" ${testfile} ${srcfile}] } { + return -1 +} + +if ![runto_main] { + return 0 +} + +if { [skip_python_tests] } { continue } + +set remote_python_file [gdb_remote_download host \ + ${srcdir}/${subdir}/${testfile}.py] +gdb_test_no_output "source ${remote_python_file}" "load python file" + +gdb_breakpoint [gdb_get_line_number "breakpoint 1 line" ${testfile}.c] +gdb_run_cmd + +gdb_interact + +# +# Test creating objfile dynamically from Python +# +gdb_py_test_silent_cmd "python objfile = gdb.Objfile(\"jit\")" \ + "create objfile" 1 + +gdb_test "python print(objfile)" \ + "<gdb.Objfile filename=jit>" \ + "print dynamic objfile" + +gdb_test "python print (objfile.is_dynamic)" "True" \ + "Check is_dynamic() returns True for Python-created objfile" + +gdb_py_test_silent_cmd "python symtab = gdb.Symtab(objfile, \"jit.st\")" \ + "create symtab" 1 + +gdb_test "python print(symtab)" \ + "jit.st" \ + "test str(gdb.Symtab)" + +gdb_test "python print(symtab.filename)" \ + "jit.st" \ + "test gdb.Symtab.filename" + +gdb_test "python print(symtab.fullname())" \ + "jit.st" \ + "test gdb.Symtab.fullname()" + +gdb_test "python print(symtab.objfile == objfile)" \ + "True" \ + "test gdb.Symtab.objfile" + +gdb_test "python print(symtab.global_block().start)" \ + "0" \ + "test gdb.Symtab.global_block().start" + +gdb_test "python print(symtab.global_block().end)" \ + "0" \ + "test gdb.Symtab.global_block().end" + +gdb_py_test_silent_cmd "python block = symtab.add_block('jit_func_1', 0xcafe0000, 0xcafe00ff)" \ + "test symtab.add_block()" 1 + +gdb_test "python print(hex(symtab.global_block().start))" \ + "0xcafe0000" \ + "test gdb.Symtab.global_block().start after adding new block" + +gdb_test "python print(hex(symtab.global_block().end))" \ + "0xcafe00ff" \ + "test gdb.Symtab.global_block().end after adding new block" + + diff --git a/gdb/testsuite/gdb.python/py-jit.py b/gdb/testsuite/gdb.python/py-jit.py new file mode 100644 index 0000000..c894c4a --- /dev/null +++ b/gdb/testsuite/gdb.python/py-jit.py @@ -0,0 +1,46 @@ +# Copyright (C) 2022-2022 Free Software Foundation, Inc. +# +# 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/>. */ + +import gdb + +objfile = None +symtab = None + +class JITRegisterCode(gdb.Breakpoint): + def stop(self): + + global objfile + global symtab + + frame = gdb.newest_frame() + name = frame.read_var('name').string() + code = int(frame.read_var('code')) + size = int(frame.read_var('size')) + + objfile = gdb.Objfile(name) + symtab = gdb.Symtab(objfile, "py-jit.c") + symtab.add_block(name, code, code + size) + symtab.set_linetable([ + gdb.LineTableEntry(29, code, True), + gdb.LineTableEntry(30, code+3, True), + gdb.LineTableEntry(31, code+6, True) + ]) + + return False # Continue execution + + +JITRegisterCode("jit_register_code", internal=True) |