Redirect stderr to stdout via -1; Unbreak dk 9 test (#4664)

* Redirect stderr to stdout via `-1`; Unbreak `dk 9` test
* Use fully qualified names in 'overgeneral-exceptions' option

.pylintrc

@@ -506,5 +506,5 @@ preferred-modules=
 
 # Exceptions that will emit a warning when being caught. Defaults to
 # "BaseException, Exception".
-overgeneral-exceptions=BaseException,
-                       Exception
+overgeneral-exceptions=builtins.BaseException,
+                       builtins.Exception

librz/main/rizin.c

@@ -102,6 +102,7 @@ static int main_help(int line) {
 			"- ",          "",          "Read file from stdin",
 			"-=",          "",          "Perform R=! command to run all commands remotely",
 			"-0",          "",          "Print \\x00 after init and every command",
+			"-1",          "",          "Redirect stderr to stdout",
 			"-2",          "",          "Close stderr file descriptor (silent warning messages)",
 			"-a",          "[arch]",    "Set asm.arch",
 			"-A",          "",          "Run 'aaa' command to analyze all referenced code",
@@ -469,6 +470,7 @@ RZ_API int rz_main_rizin(int argc, const char **argv) {
 		rz_list_free(prefiles); \
 	}
 
+	bool stderr2stdout = false;
 	bool noStderr = false;
 
 #ifdef __UNIX
@@ -534,7 +536,7 @@ RZ_API int rz_main_rizin(int argc, const char **argv) {
 	char *debugbackend = rz_str_dup("native");
 
 	RzGetopt opt;
-	rz_getopt_init(&opt, argc, argv, "=02AMCwxfF:H:hm:e:nk:NdqQs:p:b:B:a:Lui:I:l:R:r:c:D:vVSTzuXt");
+	rz_getopt_init(&opt, argc, argv, "=012AMCwxfF:H:hm:e:nk:NdqQs:p:b:B:a:Lui:I:l:R:r:c:D:vVSTzuXt");
 	while (argc >= 2 && (c = rz_getopt_next(&opt)) != -1) {
 		switch (c) {
 		case '-':
@@ -546,6 +548,9 @@ RZ_API int rz_main_rizin(int argc, const char **argv) {
 			RZ_FREE(r->cmdremote);
 			r->cmdremote = rz_str_dup("");
 			break;
+		case '1':
+			stderr2stdout = true;
+			break;
 		case '2':
 			noStderr = true;
 			break;
@@ -743,6 +748,12 @@ RZ_API int rz_main_rizin(int argc, const char **argv) {
 			help++;
 		}
 	}
+	if (stderr2stdout && -1 == dup2(1, 2)) {
+		RZ_LOG_ERROR("stderr2stdout: Failed to dup2 stderr\n");
+		LISTS_FREE();
+		RZ_FREE(debugbackend);
+		return 1;
+	}
 	if (noStderr) {
 		if (-1 == close(2)) {
 			RZ_LOG_ERROR("Failed to close stderr\n");

test/db/archos/linux-x64/dbg

@@ -26,16 +26,14 @@ EOF
 RUN
 
 NAME=dk 9
-BROKEN=1
-FILE=bins/elf/analysis/calls_x64
-ARGS=-a x86 -d
+FILE=--
 CMDS=<<EOF
-dk 9
-dc  # binary may or may not have been terminated already
+%= `env~?^ASAN_LD_PRELOAD=`
+%+ env LD_PRELOAD=`env ASAN_LD_PRELOAD`
+!python3 scripts/dk_9.py
 EOF
 EXPECT=<<EOF
 EOF
-REGEXP_FILTER_ERR=child.*signal [0-9]+.*
 EXPECT_ERR=<<EOF
 child received signal 9
 EOF

test/scripts/dk_9.py

@@ -0,0 +1,12 @@
+import sys
+import rzpipe
+
+rzp = rzpipe.open("bins/elf/analysis/calls_x64", flags=["-a", "x86", "-d", "-1"])
+expected = "child received signal 9"
+actual = rzp.cmd("")
+actual += rzp.cmd("wx ebfe; dk 9; dc")  # ebfe is infinite loop
+actual += rzp.cmd("")
+if expected in actual or "Process exited with status=0x9" in actual:
+    sys.stderr.write(expected + "\n")
+else:
+    sys.stderr.write(actual)