Add generation of memory usage report of tee.elf

3 files changed, 140 insertions, 0 deletions

diff --git a/Makefile b/Makefile
index a02d3c2d..904735f3 100644
--- a/Makefile
+++ b/Makefile
@@ -3,6 +3,9 @@ SHELL = /bin/bash
 .PHONY: all
 all:
 
+.PHONY: mem_usage
+mem_usage:
+
 # Make these default for now
 ARCH            ?= arm32
 PLATFORM        ?= stm
diff --git a/core/arch/arm32/plat-vexpress/link.mk b/core/arch/arm32/plat-vexpress/link.mk
index 3ff1f059..e2a7a2d3 100644
--- a/core/arch/arm32/plat-vexpress/link.mk
+++ b/core/arch/arm32/plat-vexpress/link.mk
@@ -52,3 +52,12 @@ $(link-out-dir)/tee.bin: $(link-out-dir)/tee.elf
 $(link-out-dir)/tee.symb_sizes: $(link-out-dir)/tee.elf
 	@echo '  GEN     $@'
 	$(q)$(NM) --print-size --reverse-sort --size-sort $< > $@
+
+cleanfiles += $(link-out-dir)/tee.mem_usage
+ifneq ($(filter mem_usage,$(MAKECMDGOALS)),)
+mem_usage: $(link-out-dir)/tee.mem_usage
+
+$(link-out-dir)/tee.mem_usage: $(link-out-dir)/tee.elf
+	@echo '  GEN     $@'
+	$(q)$(READELF) -a -W $< | ${AWK} -f ./scripts/mem_usage.awk > $@
+endif
diff --git a/scripts/mem_usage.awk b/scripts/mem_usage.awk
new file mode 100644
index 00000000..5dae2d01
--- /dev/null
+++ b/scripts/mem_usage.awk
@@ -0,0 +1,128 @@
+#
+# Copyright (c) 2014, Linaro Limited
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice,
+# this list of conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice,
+# this list of conditions and the following disclaimer in the documentation
+# and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+
+BEGIN {
+	in_shdr = 0;
+	num_sects = 0;
+}
+
+/Section Headers:/ {
+	in_shdr = 1;
+	next;
+}
+
+/Key to Flags:/ {
+	in_shdr = 0;
+	next;
+}
+
+function add_section(_name, _addr, _offs, _size)
+{
+	sects[num_sects]["name"] = _name;
+	sects[num_sects]["addr"] = strtonum("0x" _addr);
+	sects[num_sects]["offs"] = strtonum("0x" _offs);
+	sects[num_sects]["size"] = strtonum("0x" _size);
+	num_sects++;
+}
+
+{
+	if (in_shdr) {
+		if ($1 == "[")
+			name_offs = 3;
+		else
+			name_offs = 2;
+
+		name = $(name_offs);
+		addr = $(name_offs + 2);
+		offs = $(name_offs + 3);
+		size = $(name_offs + 4);
+		flags = $(name_offs + 6);
+
+		if (flags == "AX" || flags == "WA" || flags == "A") {
+			add_section(name, addr, offs, size);
+		}
+	}
+}
+
+function print_sect(_name, _addr, _size, _round_up, _print_num_pages,
+		#local variables
+		_size_kib, _num_pages)
+{
+	if (_size == 0) {
+		_size_kib = 0;
+		_num_pages = 0;
+	} else {
+		if (_round_up) {
+			_size_kib = (_size - 1) / 1024 + 1;
+		} else {
+			_size_kib = _size / 1024;
+		}
+		_num_pages = (_size - 1) / 4096 + 1;
+	}
+
+	
+
+	printf "%-16s", _name;
+	printf " %.8X - %.8X", _addr, _addr + _size;
+	printf " size %.8X %3d KiB", _size, _size_kib
+
+	if (_print_num_pages)
+		printf " %d pages", _num_pages;
+	printf "\n";
+}
+
+END {
+	for (i = 0; i < num_sects; i++ ) {
+		addr = sects[i]["addr"];
+
+		if (addr != 0) {
+			first_addr = addr;
+			break;
+		}
+	}
+
+	last_addr = sects[num_sects - 1]["addr"];
+	last_size = sects[num_sects - 1]["size"];
+	ram_usage = last_addr + last_size - first_addr;
+	print_sect("RAM Usage", first_addr, ram_usage, 1, 1);
+
+	last_addr = 0;
+	last_size = 0;
+
+	for (i = 0; i < num_sects; i++ ) {
+		name = sects[i]["name"];
+		addr = sects[i]["addr"];
+		size = sects[i]["size"];
+
+		if (last_addr != 0 && addr != last_addr + last_size)
+			print_sect("*hole*", last_addr + last_size,
+					addr - (last_addr + last_size), 0, 0);
+		print_sect(name, addr, size, 0, 0);
+		last_addr = addr;
+		last_size = size;
+	}
+}