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>

8 files changed, 22 insertions, 14 deletions

diff --git a/src/mainboard/intel/cannonlake_rvp/variants/baseboard/gpio.c b/src/mainboard/intel/cannonlake_rvp/variants/baseboard/gpio.c
index 44632e910d..fa9d0e9419 100644
--- a/src/mainboard/intel/cannonlake_rvp/variants/baseboard/gpio.c
+++ b/src/mainboard/intel/cannonlake_rvp/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*/
 static const struct pad_config gpio_table[] = {
@@ -297,13 +298,13 @@ static const struct pad_config early_gpio_table[] = {
 
 };
 
-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;
 }
 
-const struct pad_config *__attribute__((weak))
+const struct pad_config *__weak
 	variant_early_gpio_table(size_t *num)
 {
 	*num = ARRAY_SIZE(early_gpio_table);
@@ -314,7 +315,7 @@ static const struct cros_gpio cros_gpios[] = {
         CROS_GPIO_REC_AL(CROS_GPIO_VIRTUAL, CROS_GPIO_DEVICE_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/intel/cannonlake_rvp/variants/baseboard/nhlt.c b/src/mainboard/intel/cannonlake_rvp/variants/baseboard/nhlt.c
index 9fb9be5184..6f3629e599 100644
--- a/src/mainboard/intel/cannonlake_rvp/variants/baseboard/nhlt.c
+++ b/src/mainboard/intel/cannonlake_rvp/variants/baseboard/nhlt.c
@@ -14,11 +14,12 @@
  */
 
 #include <baseboard/variants.h>
+#include <compiler.h>
 #include <console/console.h>
 #include <nhlt.h>
 #include <soc/nhlt.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) &&
diff --git a/src/mainboard/intel/galileo/vboot.c b/src/mainboard/intel/galileo/vboot.c
index 469ec4e093..8242754a49 100644
--- a/src/mainboard/intel/galileo/vboot.c
+++ b/src/mainboard/intel/galileo/vboot.c
@@ -14,6 +14,7 @@
 
 #include <assert.h>
 #include <bootmode.h>
+#include <compiler.h>
 #include <console/console.h>
 #include <delay.h>
 #include <device/i2c_simple.h>
@@ -74,7 +75,7 @@ void verstage_mainboard_init(void)
 	reg_script_run(script);
 }
 
-void __attribute__((weak)) vboot_platform_prepare_reboot(void)
+void __weak vboot_platform_prepare_reboot(void)
 {
 	const struct reg_script *script;
 
diff --git a/src/mainboard/intel/glkrvp/chromeos.c b/src/mainboard/intel/glkrvp/chromeos.c
index 05e8c6017a..76c83e1151 100644
--- a/src/mainboard/intel/glkrvp/chromeos.c
+++ b/src/mainboard/intel/glkrvp/chromeos.c
@@ -15,6 +15,7 @@
 
 #include <baseboard/variants.h>
 #include <boot/coreboot_tables.h>
+#include <compiler.h>
 #include <ec/google/chromeec/ec.h>
 #include <gpio.h>
 #include <vendorcode/google/chromeos/chromeos.h>
@@ -55,7 +56,7 @@ void mainboard_chromeos_acpi_generate(void)
 	chromeos_acpi_gpio_generate(gpios, num);
 }
 
-int __attribute__((weak)) get_lid_switch(void)
+int __weak get_lid_switch(void)
 {
 	return -1;
 }
diff --git a/src/mainboard/intel/glkrvp/variants/baseboard/boardid.c b/src/mainboard/intel/glkrvp/variants/baseboard/boardid.c
index 1f30f4ea63..530c06a993 100644
--- a/src/mainboard/intel/glkrvp/variants/baseboard/boardid.c
+++ b/src/mainboard/intel/glkrvp/variants/baseboard/boardid.c
@@ -14,9 +14,10 @@
  */
 
 #include <baseboard/variants.h>
+#include <compiler.h>
 #include <ec/google/chromeec/ec.h>
 
-uint8_t __attribute__((weak)) variant_board_id(void)
+uint8_t __weak variant_board_id(void)
 {
 	if (IS_ENABLED(CONFIG_EC_GOOGLE_CHROMEEC))
 		return google_chromeec_get_board_version();
diff --git a/src/mainboard/intel/glkrvp/variants/baseboard/gpio.c b/src/mainboard/intel/glkrvp/variants/baseboard/gpio.c
index 96821d6704..7ff68a4826 100644
--- a/src/mainboard/intel/glkrvp/variants/baseboard/gpio.c
+++ b/src/mainboard/intel/glkrvp/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'
@@ -250,7 +251,7 @@ static const struct pad_config gpio_table[] = {
 	PAD_CFG_NF_IOSSTATE(GPIO_209, DN_20K, DEEP, NF1, HIZCRx0),/*EMMC0_STROBE*/
 };
 
-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;
@@ -262,7 +263,7 @@ static const struct pad_config early_gpio_table[] = {
 	PAD_CFG_NF_IOSTANDBY_IGNORE(GPIO_178, UP_20K, DEEP, NF1), /* SMB_DATA */
 };
 
-const struct pad_config * __attribute__((weak))
+const struct pad_config * __weak
 variant_early_gpio_table(size_t *num)
 {
 	*num = ARRAY_SIZE(early_gpio_table);
@@ -277,7 +278,7 @@ static const struct pad_config sleep_gpio_table[] = {
 #endif
 };
 
-const struct pad_config * __attribute__((weak))
+const struct pad_config * __weak
 variant_sleep_gpio_table(size_t *num)
 {
 	*num = ARRAY_SIZE(sleep_gpio_table);
@@ -291,7 +292,7 @@ static const struct cros_gpio cros_gpios[] = {
 #endif
 };
 
-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/intel/glkrvp/variants/baseboard/memory.c b/src/mainboard/intel/glkrvp/variants/baseboard/memory.c
index be00ecd577..56fac2a068 100644
--- a/src/mainboard/intel/glkrvp/variants/baseboard/memory.c
+++ b/src/mainboard/intel/glkrvp/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>
@@ -133,12 +134,12 @@ 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)
 {
 	return 0;
 }
diff --git a/src/mainboard/intel/glkrvp/variants/baseboard/nhlt.c b/src/mainboard/intel/glkrvp/variants/baseboard/nhlt.c
index 45cbc8f8c2..51da3addb5 100644
--- a/src/mainboard/intel/glkrvp/variants/baseboard/nhlt.c
+++ b/src/mainboard/intel/glkrvp/variants/baseboard/nhlt.c
@@ -14,11 +14,12 @@
  */
 
 #include <baseboard/variants.h>
+#include <compiler.h>
 #include <console/console.h>
 #include <nhlt.h>
 #include <soc/nhlt.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) &&