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>

4 files changed, 13 insertions, 9 deletions

diff --git a/src/mainboard/google/poppy/ramstage.c b/src/mainboard/google/poppy/ramstage.c
index c038b4186e..ea15aea988 100644
--- a/src/mainboard/google/poppy/ramstage.c
+++ b/src/mainboard/google/poppy/ramstage.c
@@ -13,6 +13,7 @@
  * GNU General Public License for more details.
  */
 
+#include <compiler.h>
 #include <baseboard/variants.h>
 #include <soc/ramstage.h>
 
@@ -29,7 +30,7 @@ void mainboard_silicon_init_params(FSP_SIL_UPD *params)
 	gpio_configure_pads(pads, num);
 }
 
-void __attribute__((weak)) variant_devtree_update(void)
+void __weak variant_devtree_update(void)
 {
 	/* Override dev tree settings per board */
 }
diff --git a/src/mainboard/google/poppy/variants/baseboard/gpio.c b/src/mainboard/google/poppy/variants/baseboard/gpio.c
index 2fea253624..25202e6139 100644
--- a/src/mainboard/google/poppy/variants/baseboard/gpio.c
+++ b/src/mainboard/google/poppy/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 */
 /* Leave eSPI pins untouched from default settings */
@@ -371,13 +372,13 @@ static const struct pad_config early_gpio_table[] = {
 	PAD_CFG_GPI_APIC_INVERT(GPP_E0, NONE, PLTRST),
 };
 
-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);
@@ -385,7 +386,7 @@ const struct pad_config * __attribute__((weak))
 }
 
 /* override specific gpio by sku id */
-const struct pad_config * __attribute__((weak))
+const struct pad_config * __weak
 	variant_sku_gpio_table(size_t *num)
 {
 	*num = 0;
@@ -397,7 +398,7 @@ static const struct cros_gpio cros_gpios[] = {
 	CROS_GPIO_WP_AH(GPIO_PCH_WP, 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/google/poppy/variants/baseboard/memory.c b/src/mainboard/google/poppy/variants/baseboard/memory.c
index 8134f1a36e..95f2b9567c 100644
--- a/src/mainboard/google/poppy/variants/baseboard/memory.c
+++ b/src/mainboard/google/poppy/variants/baseboard/memory.c
@@ -14,6 +14,7 @@
  */
 
 #include <baseboard/variants.h>
+#include <compiler.h>
 #include <gpio.h>
 #include <variant/gpio.h>
 
@@ -37,7 +38,7 @@ static const u16 rcomp_resistor[] = { 200, 81, 162 };
 /* Rcomp target */
 static const u16 rcomp_target[] = { 100, 40, 40, 23, 40 };
 
-void __attribute__((weak)) variant_memory_params(struct memory_params *p)
+void __weak variant_memory_params(struct memory_params *p)
 {
 	p->type = MEMORY_LPDDR3;
 	p->dq_map = dq_map;
@@ -50,7 +51,7 @@ void __attribute__((weak)) variant_memory_params(struct memory_params *p)
 	p->rcomp_target_size = sizeof(rcomp_target);
 }
 
-int __attribute__((weak)) variant_memory_sku(void)
+int __weak variant_memory_sku(void)
 {
 	gpio_t spd_gpios[] = {
 		GPIO_MEM_CONFIG_0,
diff --git a/src/mainboard/google/poppy/variants/baseboard/nhlt.c b/src/mainboard/google/poppy/variants/baseboard/nhlt.c
index 81557e41ea..927cb242da 100644
--- a/src/mainboard/google/poppy/variants/baseboard/nhlt.c
+++ b/src/mainboard/google/poppy/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)
 {
 	/* 2 Channel DMIC array. */
 	if (nhlt_soc_add_dmic_array(nhlt, 2))
@@ -37,7 +38,7 @@ void __attribute__((weak)) variant_nhlt_init(struct nhlt *nhlt)
 		printk(BIOS_ERR, "Couldn't add Realtek RT5663.\n");
 }
 
-void __attribute__((weak)) variant_nhlt_oem_overrides(const char **oem_id,
+void __weak variant_nhlt_oem_overrides(const char **oem_id,
 						const char **oem_table_id,
 						uint32_t *oem_revision)
 {