From af1a266670d040d2f4083ff309d732d648afba2a Mon Sep 17 00:00:00 2001
From: Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com>
Date: Tue, 10 Oct 2023 14:33:42 +0000
Subject: Add submodule dependency files
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
---
roms/u-boot/cmd/trace.c | 119 ++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 119 insertions(+)
create mode 100644 roms/u-boot/cmd/trace.c
(limited to 'roms/u-boot/cmd/trace.c')
diff --git a/roms/u-boot/cmd/trace.c b/roms/u-boot/cmd/trace.c
new file mode 100644
index 000000000..4ce47c762
--- /dev/null
+++ b/roms/u-boot/cmd/trace.c
@@ -0,0 +1,119 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2011 The Chromium OS Authors.
+ */
+
+#include <common.h>
+#include <command.h>
+#include <env.h>
+#include <mapmem.h>
+#include <trace.h>
+#include <asm/io.h>
+
+static int get_args(int argc, char *const argv[], char **buff,
+ size_t *buff_ptr, size_t *buff_size)
+{
+ if (argc < 2)
+ return -1;
+ if (argc < 4) {
+ *buff_size = env_get_ulong("profsize", 16, 0);
+ *buff = map_sysmem(env_get_ulong("profbase", 16, 0),
+ *buff_size);
+ *buff_ptr = env_get_ulong("profoffset", 16, 0);
+ } else {
+ *buff_size = simple_strtoul(argv[3], NULL, 16);
+ *buff = map_sysmem(simple_strtoul(argv[2], NULL, 16),
+ *buff_size);
+ *buff_ptr = 0;
+ };
+ return 0;
+}
+
+static int create_func_list(int argc, char *const argv[])
+{
+ size_t buff_size, avail, buff_ptr, needed, used;
+ char *buff;
+ int err;
+
+ if (get_args(argc, argv, &buff, &buff_ptr, &buff_size))
+ return -1;
+
+ avail = buff_size - buff_ptr;
+ err = trace_list_functions(buff + buff_ptr, avail, &needed);
+ if (err)
+ printf("Error: truncated (%#zx bytes needed)\n", needed);
+ used = min(avail, (size_t)needed);
+ printf("Function trace dumped to %08lx, size %#zx\n",
+ (ulong)map_to_sysmem(buff + buff_ptr), used);
+ env_set_hex("profbase", map_to_sysmem(buff));
+ env_set_hex("profsize", buff_size);
+ env_set_hex("profoffset", buff_ptr + used);
+
+ return 0;
+}
+
+static int create_call_list(int argc, char *const argv[])
+{
+ size_t buff_size, avail, buff_ptr, needed, used;
+ char *buff;
+ int err;
+
+ if (get_args(argc, argv, &buff, &buff_ptr, &buff_size))
+ return -1;
+
+ avail = buff_size - buff_ptr;
+ err = trace_list_calls(buff + buff_ptr, avail, &needed);
+ if (err)
+ printf("Error: truncated (%#zx bytes needed)\n", needed);
+ used = min(avail, (size_t)needed);
+ printf("Call list dumped to %08lx, size %#zx\n",
+ (ulong)map_to_sysmem(buff + buff_ptr), used);
+
+ env_set_hex("profbase", map_to_sysmem(buff));
+ env_set_hex("profsize", buff_size);
+ env_set_hex("profoffset", buff_ptr + used);
+
+ return 0;
+}
+
+int do_trace(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
+{
+ const char *cmd = argc < 2 ? NULL : argv[1];
+
+ if (!cmd)
+ return cmd_usage(cmdtp);
+ switch (*cmd) {
+ case 'p':
+ trace_set_enabled(0);
+ break;
+ case 'c':
+ if (create_call_list(argc, argv))
+ return cmd_usage(cmdtp);
+ break;
+ case 'r':
+ trace_set_enabled(1);
+ break;
+ case 'f':
+ if (create_func_list(argc, argv))
+ return cmd_usage(cmdtp);
+ break;
+ case 's':
+ trace_print_stats();
+ break;
+ default:
+ return CMD_RET_USAGE;
+ }
+
+ return 0;
+}
+
+U_BOOT_CMD(
+ trace, 4, 1, do_trace,
+ "trace utility commands",
+ "stats - display tracing statistics\n"
+ "trace pause - pause tracing\n"
+ "trace resume - resume tracing\n"
+ "trace funclist [<addr> <size>] - dump function list into buffer\n"
+ "trace calls [<addr> <size>] "
+ "- dump function call trace into buffer"
+);
--
cgit