compiler.h: add __weak macro

Instead of writing out '__attribute__((weak))' use a shorter form.

Change-Id: If418a1d55052780077febd2d8f2089021f414b91
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/25767
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Justin TerAvest <teravest@chromium.org>

3 files changed, 10 insertions, 7 deletions

diff --git a/src/mainboard/google/reef/variants/baseboard/gpio.c b/src/mainboard/google/reef/variants/baseboard/gpio.c
index 7440cf8f2c..3cd765b359 100644
--- a/src/mainboard/google/reef/variants/baseboard/gpio.c
+++ b/src/mainboard/google/reef/variants/baseboard/gpio.c
@@ -16,6 +16,7 @@
 #include <baseboard/gpio.h>
 #include <baseboard/variants.h>
 #include <commonlib/helpers.h>
+#include <compiler.h>
 
 /*
  * Pad configuration in ramstage. The order largely follows the 'GPIO Muxing'
@@ -345,7 +346,7 @@ static const struct pad_config gpio_table[] = {
 	PAD_CFG_GPI(GPIO_73, UP_20K, DEEP),	 /* GP_CAMERASB11 */
 };
 
-const struct pad_config * __attribute__((weak)) variant_gpio_table(size_t *num)
+const struct pad_config * __weak variant_gpio_table(size_t *num)
 {
 	*num = ARRAY_SIZE(gpio_table);
 	return gpio_table;
@@ -362,7 +363,7 @@ static const struct pad_config early_gpio_table[] = {
 	PAD_CFG_GPO(GPIO_122, 0, DEEP),		 /* SIO_SPI_2_RXD */
 };
 
-const struct pad_config * __attribute__((weak))
+const struct pad_config * __weak
 variant_early_gpio_table(size_t *num)
 {
 	*num = ARRAY_SIZE(early_gpio_table);
@@ -375,7 +376,7 @@ static const struct pad_config sleep_gpio_table[] = {
 	PAD_CFG_GPI_APIC_LOW(GPIO_20, NONE, DEEP),	/* NFC_INT_L */
 };
 
-const struct pad_config * __attribute__((weak))
+const struct pad_config * __weak
 variant_sleep_gpio_table(u8 slp_typ, size_t *num)
 {
 	*num = ARRAY_SIZE(sleep_gpio_table);
@@ -388,7 +389,7 @@ static const struct cros_gpio cros_gpios[] = {
 	CROS_GPIO_PE_AH(PAD_N(GPIO_SHIP_MODE), GPIO_COMM_N_NAME),
 };
 
-const struct cros_gpio * __attribute__((weak)) variant_cros_gpios(size_t *num)
+const struct cros_gpio * __weak variant_cros_gpios(size_t *num)
 {
 	*num = ARRAY_SIZE(cros_gpios);
 	return cros_gpios;
diff --git a/src/mainboard/google/reef/variants/baseboard/memory.c b/src/mainboard/google/reef/variants/baseboard/memory.c
index 50e93c7d19..364c0ee093 100644
--- a/src/mainboard/google/reef/variants/baseboard/memory.c
+++ b/src/mainboard/google/reef/variants/baseboard/memory.c
@@ -14,6 +14,7 @@
  */
 
 #include <baseboard/variants.h>
+#include <compiler.h>
 #include <gpio.h>
 #include <soc/meminit.h>
 #include <variant/gpio.h>
@@ -137,12 +138,12 @@ static const struct lpddr4_cfg lp4cfg = {
 	.swizzle_config = &baseboard_lpddr4_swizzle,
 };
 
-const struct lpddr4_cfg * __attribute__((weak)) variant_lpddr4_config(void)
+const struct lpddr4_cfg * __weak variant_lpddr4_config(void)
 {
 	return &lp4cfg;
 }
 
-size_t __attribute__((weak)) variant_memory_sku(void)
+size_t __weak variant_memory_sku(void)
 {
 	gpio_t pads[] = {
 		[3] = MEM_CONFIG3, [2] = MEM_CONFIG2,
diff --git a/src/mainboard/google/reef/variants/baseboard/nhlt.c b/src/mainboard/google/reef/variants/baseboard/nhlt.c
index b9357962df..188766954e 100644
--- a/src/mainboard/google/reef/variants/baseboard/nhlt.c
+++ b/src/mainboard/google/reef/variants/baseboard/nhlt.c
@@ -14,13 +14,14 @@
  */
 
 #include <baseboard/variants.h>
+#include <compiler.h>
 #include <console/console.h>
 #include <nhlt.h>
 #include <soc/nhlt.h>
 #include <gpio.h>
 #include <baseboard/gpio.h>
 
-void __attribute__((weak)) variant_nhlt_init(struct nhlt *nhlt)
+void __weak variant_nhlt_init(struct nhlt *nhlt)
 {
 	/* 1-dmic configuration */
 	if (IS_ENABLED(CONFIG_NHLT_DMIC_1CH_16B) &&