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https://github.com/Telecominfraproject/OpenCellular.git
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2650ff3d70
Add CONFIG_LTO to use GCC Link-Time Optimizations to try to reduce the flash footprint of the firmware. Add additional protection to some functions/data to avoid removal by the linker when their usage is not obvious. Signed-off-by: Vincent Palatin <vpalatin@chromium.org> BRANCH=none BUG=none TEST=make buildall (with and without LTO enable on all boards) Change-Id: I586b8c1eda4592b416c85383b65153c1d5ab0059 Reviewed-on: https://chromium-review.googlesource.com/271291 Trybot-Ready: Vincent Palatin <vpalatin@chromium.org> Tested-by: Vincent Palatin <vpalatin@chromium.org> Reviewed-by: Randall Spangler <rspangler@chromium.org> Reviewed-by: Alec Berg <alecaberg@chromium.org> Commit-Queue: Vincent Palatin <vpalatin@chromium.org>
54 lines
1.1 KiB
C
54 lines
1.1 KiB
C
/* Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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/* Embed firmware version number in the binary */
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#include <stdint.h>
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#include "common.h"
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#include "ec_date.h"
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#include "ec_version.h"
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#include "version.h"
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const struct version_struct __keep version_data
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__attribute__((section(".rodata.ver"))) = {
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CROS_EC_VERSION_COOKIE1,
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CROS_EC_VERSION32,
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CROS_EC_VERSION_COOKIE2
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};
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const char build_info[] __keep __attribute__((section(".rodata.buildinfo"))) =
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CROS_EC_VERSION " " DATE " " BUILDER;
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uint32_t ver_get_numcommits(void)
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{
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int i;
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int numperiods = 0;
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uint32_t ret = 0;
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/*
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* Version string is formatted like:
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* name_major.branch.numcommits-hash[dirty]
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* we want to return the numcommits as an int.
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*/
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for (i = 0; i < 32; i++) {
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if (version_data.version[i] == '.') {
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numperiods++;
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if (numperiods == 2)
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break;
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}
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}
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i++;
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for (; i < 32; i++) {
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if (version_data.version[i] == '-')
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break;
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ret *= 10;
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ret += version_data.version[i] - '0';
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}
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return (i == 32 ? 0 : ret);
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}
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