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Re: [Qemu-devel] [PATCH 1/2] acpi-test: signature endian-ness fixes
From: |
Laszlo Ersek |
Subject: |
Re: [Qemu-devel] [PATCH 1/2] acpi-test: signature endian-ness fixes |
Date: |
Tue, 18 Mar 2014 19:02:30 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.3.0 |
On 03/18/14 15:48, Michael S. Tsirkin wrote:
> acpi table signature is really an ASCII string.
> Treat it as such in tests.
>
> Signed-off-by: Michael S. Tsirkin <address@hidden>
> ---
> tests/acpi-test.c | 48 +++++++++++++++++++++++++++++++++---------------
> 1 file changed, 33 insertions(+), 15 deletions(-)
>
> diff --git a/tests/acpi-test.c b/tests/acpi-test.c
> index 185309a..249fe03 100644
> --- a/tests/acpi-test.c
> +++ b/tests/acpi-test.c
> @@ -23,7 +23,6 @@
> #define MACHINE_Q35 "q35"
>
> #define ACPI_REBUILD_EXPECTED_AML "TEST_ACPI_REBUILD_AML"
> -#define ACPI_SSDT_SIGNATURE 0x54445353 /* SSDT */
>
> /* DSDT and SSDTs format */
> typedef struct {
> @@ -101,6 +100,20 @@ typedef struct {
> ACPI_READ_FIELD((table)->asl_compiler_revision, addr); \
> } while (0);
>
> +#define ACPI_ASSERT_CMP(actual, expected) do { \
> + uint32_t ACPI_ASSERT_CMP_le = cpu_to_le32(actual); \
> + char ACPI_ASSERT_CMP_str[5] = {}; \
> + memcpy(ACPI_ASSERT_CMP_str, &ACPI_ASSERT_CMP_le, 4); \
> + g_assert_cmpstr(ACPI_ASSERT_CMP_str, ==, expected); \
> +} while (0)
> +
> +#define ACPI_ASSERT_CMP64(actual, expected) do { \
> + uint64_t ACPI_ASSERT_CMP_le = cpu_to_le64(actual); \
> + char ACPI_ASSERT_CMP_str[9] = {}; \
> + memcpy(ACPI_ASSERT_CMP_str, &ACPI_ASSERT_CMP_le, 8); \
> + g_assert_cmpstr(ACPI_ASSERT_CMP_str, ==, expected); \
> +} while (0)
> +
The {} initializers are GNUisms, { 0 } is the standard way to write them.
(For strings where you specify the size explicitly, = "" would work too
(in C99 explicitly, in C89 a bit more navel gazing would be required to
derive that).)
The patch seems reasonable to me.
Reviewed-by: Laszlo Ersek <address@hidden>