vboot: replace Min macro with VB2_MIN
Replace old vboot1-style Min macro with VB2_MIN, and relocate tests accordingly. BUG=b:124141368 TEST=make clean && make runtests BRANCH=none Change-Id: I73d630147eaf23f97dd750769fb1e911dae01848 Signed-off-by: Joel Kitching <kitching@google.com> Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/vboot_reference/+/1675866 Tested-by: Joel Kitching <kitching@chromium.org> Reviewed-by: Julius Werner <jwerner@chromium.org> Commit-Queue: Joel Kitching <kitching@chromium.org>
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2
Makefile
2
Makefile
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@ -723,7 +723,6 @@ TEST_NAMES = \
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tests/rollback_index3_tests \
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tests/sha_benchmark \
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tests/utility_string_tests \
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tests/utility_tests \
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tests/vboot_api_devmode_tests \
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tests/vboot_api_kernel_tests \
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tests/vboot_api_kernel2_tests \
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@ -1375,7 +1374,6 @@ ifeq (${TPM2_MODE},)
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endif
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${RUNTEST} ${BUILD_RUN}/tests/rollback_index3_tests
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${RUNTEST} ${BUILD_RUN}/tests/utility_string_tests
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${RUNTEST} ${BUILD_RUN}/tests/utility_tests
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${RUNTEST} ${BUILD_RUN}/tests/vboot_api_devmode_tests
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${RUNTEST} ${BUILD_RUN}/tests/vboot_api_kernel_tests
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${RUNTEST} ${BUILD_RUN}/tests/vboot_api_kernel2_tests
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@ -39,8 +39,7 @@ static int vb2_gbb_read_key(struct vb2_context *ctx,
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/* Deal with a zero-size key (used in testing). */
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*size = (*keyp)->key_offset + (*keyp)->key_size;
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if (*size < sizeof(**keyp))
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*size = sizeof(**keyp);
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*size = VB2_MAX(*size, sizeof(**keyp));
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/* Now that we know the real size of the key, retrieve the key
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data, and write it on the workbuf, directly after vb2_packed_key. */
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@ -98,10 +97,8 @@ int vb2api_gbb_read_hwid(struct vb2_context *ctx,
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return VB2_ERROR_GBB_INVALID;
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}
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if (*size > VB2_GBB_HWID_MAX_SIZE)
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*size = VB2_GBB_HWID_MAX_SIZE;
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if (*size > gbb->hwid_size)
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*size = gbb->hwid_size;
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*size = VB2_MIN(*size, VB2_GBB_HWID_MAX_SIZE);
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*size = VB2_MIN(*size, gbb->hwid_size);
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ret = vb2ex_read_resource(ctx, VB2_RES_GBB, gbb->hwid_offset,
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hwid, *size);
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@ -18,12 +18,19 @@
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struct vb2_public_key;
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/*
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* Return the greater of A and B. This is used in macros which calculate the
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* Return the min/max of A and B. This is used in macros which calculate the
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* required buffer size, so can't be turned into a static inline function.
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*/
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#ifndef VB2_MAX
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#define VB2_MAX(A, B) ((A) > (B) ? (A) : (B))
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#endif
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#define VB2_MIN(a, b) ({ \
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typeof(a) __vb2_min_a = (a); \
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typeof(b) __vb2_min_b = (b); \
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__vb2_min_a < __vb2_min_b ? __vb2_min_a : __vb2_min_b; \
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})
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#define VB2_MAX(a, b) ({ \
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typeof(a) __vb2_max_a = (a); \
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typeof(b) __vb2_max_b = (b); \
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__vb2_max_a > __vb2_max_b ? __vb2_max_a : __vb2_max_b; \
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})
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/* Return the number of elements in an array */
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#ifndef ARRAY_SIZE
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@ -22,9 +22,6 @@
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#define VbAssert(expr)
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#endif
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/* Return the minimum of (a) or (b). */
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#define Min(a, b) (((a) < (b)) ? (a) : (b))
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/*
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* Buffer size required to hold the longest possible output of Uint64ToString()
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* - that is, Uint64ToString(~0, 2).
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@ -245,7 +245,7 @@ static int do_update(int argc, char *argv[])
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STATUS("Starting firmware updater.\n");
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r = update_firmware(cfg);
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if (r != UPDATE_ERR_DONE) {
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r = Min(r, UPDATE_ERR_UNKNOWN);
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r = VB2_MIN(r, UPDATE_ERR_UNKNOWN);
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ERROR("%s\n", updater_error_messages[r]);
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errorcnt++;
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}
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@ -814,7 +814,7 @@ static int emulate_write_firmware(const char *filename,
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}
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if (!errorcnt) {
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size_t to_write = Min(to.size, from.size);
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size_t to_write = VB2_MIN(to.size, from.size);
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assert(from.data && to.data);
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VB2_DEBUG("Writing %zu bytes\n", to_write);
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@ -949,7 +949,7 @@ int preserve_firmware_section(const struct firmware_image *image_from,
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FMAP_NAMELEN, section_name);
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}
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/* Use memmove in case if we need to deal with sections that overlap. */
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memmove(to.data, from.data, Min(from.size, to.size));
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memmove(to.data, from.data, VB2_MIN(from.size, to.size));
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return 0;
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}
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@ -1,50 +0,0 @@
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/* Copyright (c) 2011 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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* Tests for utility functions
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*/
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "test_common.h"
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#include "utility.h"
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#include "vboot_common.h"
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/* Test utility.h and sysincludes.h macros */
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static void MacrosTest(void)
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{
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int64_t a = -10, b = -20;
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uint64_t u = (0xABCD00000000ULL);
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uint64_t v = (0xABCD000000ULL);
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TEST_EQ(Min(1, 2), 1, "Min 1");
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TEST_EQ(Min(4, 3), 3, "Min 2");
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TEST_EQ(Min(5, 5), 5, "Min 5");
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TEST_EQ(Min(a, b), b, "Min uint64 1");
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TEST_EQ(Min(b, a), b, "Min uint64 2");
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TEST_EQ(Min(b, b), b, "Min uint64 same");
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TEST_EQ(u >> 8, v, "uint64_t >> 8");
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TEST_EQ(u >> 0, u, "uint64_t >> 0");
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TEST_EQ(u >> 36, (uint64_t)0xABC, "uint64_t >> 36");
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TEST_EQ(v * (uint32_t)0, 0, "uint64_t * uint32_t 0");
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TEST_EQ(v * (uint32_t)1, v, "uint64_t * uint32_t 1");
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TEST_EQ(v * (uint32_t)256, u, "uint64_t * uint32_t 256");
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}
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int main(int argc, char* argv[])
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{
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int error_code = 0;
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MacrosTest();
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if (!gTestSuccess)
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error_code = 255;
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return error_code;
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}
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@ -10,6 +10,56 @@
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#include "test_common.h"
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#include "vboot_struct.h" /* For old struct sizes */
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/* Mock data */
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static int counter_calls_left = 0;
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/* Mock functions */
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static int counter(void)
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{
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counter_calls_left--;
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return 0;
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}
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/*
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* Test arithmetic-related macros and operators.
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*/
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static void test_arithmetic(void)
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{
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int64_t a = -10, b = -20;
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uint64_t u = (0xabcd00000000ULL);
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uint64_t v = (0xabcd000000ULL);
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TEST_EQ(VB2_MIN(1, 2), 1, "MIN 1");
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TEST_EQ(VB2_MIN(4, 3), 3, "MIN 3");
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TEST_EQ(VB2_MIN(5, 5), 5, "MIN 5");
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TEST_EQ(VB2_MIN(a, b), b, "MIN uint64 1");
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TEST_EQ(VB2_MIN(b, a), b, "MIN uint64 2");
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TEST_EQ(VB2_MIN(b, b), b, "MIN uint64 same");
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counter_calls_left = 2;
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VB2_MIN(counter(), counter());
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TEST_EQ(counter_calls_left, 0, "MIN double-evaluation");
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TEST_EQ(VB2_MAX(1, 2), 2, "MAX 2");
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TEST_EQ(VB2_MAX(4, 3), 4, "MAX 4");
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TEST_EQ(VB2_MAX(5, 5), 5, "MAX 5");
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TEST_EQ(VB2_MAX(a, b), a, "MAX uint64 1");
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TEST_EQ(VB2_MAX(b, a), a, "MAX uint64 2");
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TEST_EQ(VB2_MAX(b, b), b, "MAX uint64 same");
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counter_calls_left = 2;
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VB2_MAX(counter(), counter());
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TEST_EQ(counter_calls_left, 0, "MAX double-evaluation");
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TEST_EQ(u >> 8, v, "uint64_t >> 8");
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TEST_EQ(u >> 0, u, "uint64_t >> 0");
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TEST_EQ(u >> 36, (uint64_t)0xabc, "uint64_t >> 36");
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TEST_EQ(v * (uint32_t)0, 0, "uint64_t * uint32_t 0");
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TEST_EQ(v * (uint32_t)1, v, "uint64_t * uint32_t 1");
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TEST_EQ(v * (uint32_t)256, u, "uint64_t * uint32_t 256");
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}
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/*
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* Test array size macro.
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*/
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@ -232,6 +282,7 @@ static void test_helper_functions(void)
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int main(int argc, char* argv[])
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{
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test_arithmetic();
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test_array_size();
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test_struct_packing();
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test_memcmp();
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