[gdb/testsuite] structured rename of jit test files

Reorganizes how JIT related test files to be more clear what are related
to JIT reader system tests and what use JIT from ELF objfiles. Those two
approaches are quite different in GDB implementation and require very
different test setup. Keeping distinction clear at the file name level
makes it easier to maintain the testsuite.

gdb/testsuite/ChangeLog:

2020-02-18  Mihails Strasuns  <mihails.strasuns@intel.com>

	* gdb.base: Rename all jit related test and source files.

1 files changed, 162 insertions, 0 deletions

diff --git a/gdb/testsuite/gdb.base/jit-reader-simple.exp b/gdb/testsuite/gdb.base/jit-reader-simple.exp
new file mode 100644
index 0000000..c036e71
--- /dev/null
+++ b/gdb/testsuite/gdb.base/jit-reader-simple.exp
@@ -0,0 +1,162 @@
+# Copyright 2012-2020 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 re-running an inferior with a JIT descriptor, where the JIT
+# descriptor changes address between runs.
+# http://sourceware.org/bugzilla/show_bug.cgi?id=13431
+
+# Test both the case of the JIT reader being included in the main
+# program directly, and the case of the JIT reader being split out to
+# a shared library.
+
+# For completeness, also test when the JIT descriptor does not change
+# address between runs.
+
+if {[skip_shlib_tests]} {
+    untested "skipping shared library tests"
+    return -1
+}
+
+standard_testfile
+
+set libname $testfile-jit
+set srcfile_lib $srcdir/$subdir/$libname.c
+set binfile_lib [standard_output_file $libname.so]
+
+# Build a standalone JIT binary.
+
+proc build_standalone_jit {{options ""}} {
+    global testfile srcfile binfile
+
+    lappend options "debug"
+
+    if {[build_executable $testfile.exp $testfile $srcfile $options] == -1} {
+	return -1
+    }
+
+    return 0
+}
+
+# Build the shared library JIT.
+
+proc build_shared_jit {{options ""}} {
+    global testfile
+    global srcfile_lib binfile_lib
+
+    lappend options "debug additional_flags=-fPIC"
+    if { [gdb_compile_shlib $srcfile_lib $binfile_lib $options] != "" } {
+	return -1
+    }
+
+    return 0
+}
+
+if {[build_standalone_jit] == -1} {
+    untested "failed to compile standalone testcase"
+    return
+}
+
+if {[build_shared_jit] == -1} {
+    untested "failed to compile shared library testcase"
+    return
+}
+
+# Built the program that loads the JIT library.
+set srcfile_dl $testfile-dl.c
+set binfile_dl $binfile-dl
+set options [list debug shlib=${binfile_lib}]
+if {[gdb_compile ${srcdir}/${subdir}/${srcfile_dl} $binfile_dl executable \
+	 [list debug shlib=$binfile_lib]] == -1 } {
+    untested "failed to compile"
+    return -1
+}
+
+# STANDALONE is true when the JIT reader is included directly in the
+# main program.  False when the JIT reader is in a separate shared
+# library.  If CHANGE_ADDR is true, force changing the JIT descriptor
+# changes address between runs.
+proc jit_test_reread {standalone change_addr} {
+    global testfile binfile subdir srcfile srcdir binfile_lib binfile_dl
+    global hex
+
+    with_test_prefix "initial run" {
+	if {$standalone} {
+	    clean_restart $binfile
+	} else {
+	    clean_restart $binfile_dl
+	}
+
+	runto_main
+
+	set addr_before [get_hexadecimal_valueof "&__jit_debug_descriptor" 0 \
+			     "get address of __jit_debug_descriptor"]
+
+	gdb_test "maint info breakpoints" \
+	    "jit events     keep y   $hex <__jit_debug_register_code>.*" \
+	    "maint info breakpoints shows jit breakpoint"
+    }
+
+    with_test_prefix "second run" {
+	# Ensure that the new executable is at least one second newer
+	# than the old.  If the recompilation happens in the same
+	# second, gdb might not reload the executable automatically.
+	sleep 1
+
+	if ${change_addr} {
+	    set options "additional_flags=-DSPACER"
+	    if {$standalone} {
+		gdb_rename_execfile $binfile ${binfile}x
+		set res [build_standalone_jit $options]
+	    } else {
+		gdb_rename_execfile $binfile_lib ${binfile_lib}x
+		set res [build_shared_jit $options]
+	    }
+	    if  { $res == -1 } {
+		fail "recompile"
+		return
+	    } else {
+		pass "recompile"
+	    }
+	}
+
+	runto_main
+
+	set addr_after [get_hexadecimal_valueof "&__jit_debug_descriptor" 0 \
+			    "get address of __jit_debug_descriptor"]
+
+	# This used to crash in the JIT-in-shared-library case:
+	# https://sourceware.org/bugzilla/show_bug.cgi?id=11094
+	gdb_test "maint info breakpoints" \
+	    "jit events     keep y   $hex <__jit_debug_register_code>.*" \
+	    "maint info breakpoints shows jit breakpoint"
+    }
+
+    if ${change_addr} {
+	gdb_assert {$addr_before != $addr_after} "address changed"
+    } else {
+	gdb_assert {$addr_before == $addr_after} "address didn't change"
+    }
+}
+
+foreach standalone {1 0} {
+    with_test_prefix [expr ($standalone)?"standalone":"shared"] {
+	with_test_prefix "change addr" {
+	    jit_test_reread $standalone 1
+	}
+	with_test_prefix "same addr" {
+	    jit_test_reread $standalone 0
+	}
+    }
+}