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>

src/drivers/intel/fsp1_1/car.c

@@ -14,6 +14,7 @@
  */
 
 #include <arch/early_variables.h>
+#include <compiler.h>
 #include <console/console.h>
 #include <fsp/car.h>
 #include <fsp/util.h>
@@ -100,18 +101,18 @@ asmlinkage void after_cache_as_ram(void *chipset_context)
 	after_cache_as_ram_stage();
 }
 
-void __attribute__((weak)) car_mainboard_pre_console_init(void)
+void __weak car_mainboard_pre_console_init(void)
 {
 }
 
-void __attribute__((weak)) car_soc_pre_console_init(void)
+void __weak car_soc_pre_console_init(void)
 {
 }
 
-void __attribute__((weak)) car_mainboard_post_console_init(void)
+void __weak car_mainboard_post_console_init(void)
 {
 }
 
-void __attribute__((weak)) car_soc_post_console_init(void)
+void __weak car_soc_post_console_init(void)
 {
 }

src/drivers/intel/fsp1_1/raminit.c

@@ -15,6 +15,7 @@
 
 #include <arch/acpi.h>
 #include <cbmem.h>
+#include <compiler.h>
 #include <console/console.h>
 #include <fsp/memmap.h>
 #include <fsp/romstage.h>
@@ -296,7 +297,7 @@ void raminit(struct romstage_params *params)
 }
 
 /* Initialize the UPD parameters for MemoryInit */
-__attribute__((weak)) void mainboard_memory_init_params(
+__weak void mainboard_memory_init_params(
 	struct romstage_params *params,
 	MEMORY_INIT_UPD *upd_ptr)
 {
@@ -304,7 +305,7 @@ __attribute__((weak)) void mainboard_memory_init_params(
 }
 
 /* Display the UPD parameters for MemoryInit */
-__attribute__((weak)) void soc_display_memory_init_params(
+__weak void soc_display_memory_init_params(
 	const MEMORY_INIT_UPD *old, MEMORY_INIT_UPD *new)
 {
 	printk(BIOS_SPEW, "UPD values for MemoryInit:\n");
@@ -312,7 +313,7 @@ __attribute__((weak)) void soc_display_memory_init_params(
 }
 
 /* Initialize the UPD parameters for MemoryInit */
-__attribute__((weak)) void soc_memory_init_params(
+__weak void soc_memory_init_params(
 	struct romstage_params *params,
 	MEMORY_INIT_UPD *upd)
 {

src/drivers/intel/fsp1_1/ramstage.c

@@ -18,6 +18,7 @@
 #include <arch/acpi.h>
 #include <cbmem.h>
 #include <cbfs.h>
+#include <compiler.h>
 #include <console/console.h>
 #include <fsp/memmap.h>
 #include <fsp/ramstage.h>
@@ -28,7 +29,7 @@
 #include <timestamp.h>
 
 /* SOC initialization after FSP silicon init */
-__attribute__((weak)) void soc_after_silicon_init(void)
+__weak void soc_after_silicon_init(void)
 {
 }
 
@@ -215,13 +216,13 @@ void intel_silicon_init(void)
 }
 
 /* Initialize the UPD parameters for SiliconInit */
-__attribute__((weak)) void mainboard_silicon_init_params(
+__weak void mainboard_silicon_init_params(
 	SILICON_INIT_UPD *params)
 {
 };
 
 /* Display the UPD parameters for SiliconInit */
-__attribute__((weak)) void soc_display_silicon_init_params(
+__weak void soc_display_silicon_init_params(
 	const SILICON_INIT_UPD *old, SILICON_INIT_UPD *new)
 {
 	printk(BIOS_SPEW, "UPD values for SiliconInit:\n");
@@ -229,6 +230,6 @@ __attribute__((weak)) void soc_display_silicon_init_params(
 }
 
 /* Initialize the UPD parameters for SiliconInit */
-__attribute__((weak)) void soc_silicon_init_params(SILICON_INIT_UPD *params)
+__weak void soc_silicon_init_params(SILICON_INIT_UPD *params)
 {
 }

src/drivers/intel/fsp1_1/romstage.c

@@ -20,6 +20,7 @@
 #include <arch/cbfs.h>
 #include <arch/early_variables.h>
 #include <assert.h>
+#include <compiler.h>
 #include <console/console.h>
 #include <cbmem.h>
 #include <cpu/intel/microcode.h>
@@ -185,13 +186,13 @@ void after_cache_as_ram_stage(void)
 }
 
 /* Initialize the power state */
-__attribute__((weak)) struct chipset_power_state *fill_power_state(void)
+__weak struct chipset_power_state *fill_power_state(void)
 {
 	return NULL;
 }
 
 /* Board initialization before and after RAM is enabled */
-__attribute__((weak)) void mainboard_romstage_entry(
+__weak void mainboard_romstage_entry(
 	struct romstage_params *params)
 {
 	post_code(0x31);
@@ -201,7 +202,7 @@ __attribute__((weak)) void mainboard_romstage_entry(
 }
 
 /* Save the DIMM information for SMBIOS table 17 */
-__attribute__((weak)) void mainboard_save_dimm_info(
+__weak void mainboard_save_dimm_info(
 	struct romstage_params *params)
 {
 	int channel;
@@ -330,7 +331,7 @@ __attribute__((weak)) void mainboard_save_dimm_info(
 }
 
 /* Add any mainboard specific information */
-__attribute__((weak)) void mainboard_add_dimm_info(
+__weak void mainboard_add_dimm_info(
 	struct romstage_params *params,
 	struct memory_info *mem_info,
 	int channel, int dimm, int index)
@@ -338,44 +339,44 @@ __attribute__((weak)) void mainboard_add_dimm_info(
 }
 
 /* Get the memory configuration data */
-__attribute__((weak)) int mrc_cache_get_current(int type, uint32_t version,
+__weak int mrc_cache_get_current(int type, uint32_t version,
 				struct region_device *rdev)
 {
 	return -1;
 }
 
 /* Save the memory configuration data */
-__attribute__((weak)) int mrc_cache_stash_data(int type, uint32_t version,
+__weak int mrc_cache_stash_data(int type, uint32_t version,
 					const void *data, size_t size)
 {
 	return -1;
 }
 
 /* Transition RAM from off or self-refresh to active */
-__attribute__((weak)) void raminit(struct romstage_params *params)
+__weak void raminit(struct romstage_params *params)
 {
 	post_code(0x34);
 	die("ERROR - No RAM initialization specified!\n");
 }
 
 /* Display the memory configuration */
-__attribute__((weak)) void report_memory_config(void)
+__weak void report_memory_config(void)
 {
 }
 
 /* Choose top of stack and setup MTRRs */
-__attribute__((weak)) void *setup_stack_and_mtrrs(void)
+__weak void *setup_stack_and_mtrrs(void)
 {
 	die("ERROR - Must specify top of stack!\n");
 	return NULL;
 }
 
 /* SOC initialization after RAM is enabled */
-__attribute__((weak)) void soc_after_ram_init(struct romstage_params *params)
+__weak void soc_after_ram_init(struct romstage_params *params)
 {
 }
 
 /* SOC initialization before RAM is enabled */
-__attribute__((weak)) void soc_pre_ram_init(struct romstage_params *params)
+__weak void soc_pre_ram_init(struct romstage_params *params)
 {
 }

src/drivers/intel/fsp2_0/graphics.c

@@ -124,7 +124,7 @@ int fill_lb_framebuffer(struct lb_framebuffer *framebuffer)
 	return 0;
 }
 
-__attribute__((weak)) uintptr_t fsp_soc_get_igd_bar(void)
+__weak uintptr_t fsp_soc_get_igd_bar(void)
 {
 	return 0;
 }

src/drivers/intel/fsp2_0/hob_display.c

@@ -157,7 +157,7 @@ const char *fsp_get_guid_name(const uint8_t *guid)
 	return "Unknown GUID";
 }
 
-__attribute__((weak)) const char *soc_get_hob_type_name(
+__weak const char *soc_get_hob_type_name(
 	const struct hob_header *hob)
 {
 	return NULL;
@@ -173,7 +173,7 @@ void fsp_print_guid_extension_hob(const struct hob_header *hob)
 	printk(BIOS_SPEW, ": %s\n", fsp_get_guid_name(res->owner_guid));
 }
 
-__attribute__((weak)) const char *soc_get_guid_name(const uint8_t *guid)
+__weak const char *soc_get_guid_name(const uint8_t *guid)
 {
 	return NULL;
 }
@@ -212,6 +212,6 @@ void fsp_display_hobs(void)
 	}
 }
 
-__attribute__((weak)) void soc_display_hob(const struct hob_header *hob)
+__weak void soc_display_hob(const struct hob_header *hob)
 {
 }

src/drivers/intel/fsp2_0/memory_init.c

@@ -307,13 +307,13 @@ static enum cb_err fsp_fill_common_arch_params(FSPM_ARCH_UPD *arch_upd,
 	return CB_SUCCESS;
 }
 
-__attribute__((weak))
+__weak
 uint8_t fsp_memory_mainboard_version(void)
 {
 	return 0;
 }
 
-__attribute__((weak))
+__weak
 uint8_t fsp_memory_soc_version(void)
 {
 	return 0;

src/drivers/intel/fsp2_0/notify.c

@@ -12,6 +12,7 @@
 
 #include <arch/cpu.h>
 #include <bootstate.h>
+#include <compiler.h>
 #include <console/console.h>
 #include <fsp/util.h>
 #include <soc/intel/common/util.h>
@@ -87,7 +88,7 @@ BOOT_STATE_INIT_ENTRY(BS_PAYLOAD_LOAD, BS_ON_EXIT, fsp_notify_dummy,
 BOOT_STATE_INIT_ENTRY(BS_OS_RESUME, BS_ON_ENTRY, fsp_notify_dummy,
 						(void *) READY_TO_BOOT);
 
-__attribute__((weak)) void platform_fsp_notify_status(
+__weak void platform_fsp_notify_status(
 	enum fsp_notify_phase phase)
 {
 }

src/drivers/intel/fsp2_0/upd_display.c

@@ -10,6 +10,7 @@
  */
 
 #include <arch/cpu.h>
+#include <compiler.h>
 #include <console/console.h>
 #include <fsp/util.h>
 #include <lib.h>
@@ -50,7 +51,7 @@ static void fspm_display_arch_params(const FSPM_ARCH_UPD *old,
 }
 
 /* Display the UPD parameters for MemoryInit */
-__attribute__((weak)) void soc_display_fspm_upd_params(
+__weak void soc_display_fspm_upd_params(
 	const FSPM_UPD *fspm_old_upd,
 	const FSPM_UPD *fspm_new_upd)
 {
@@ -67,7 +68,7 @@ void fspm_display_upd_values(const FSPM_UPD *old,
 }
 
 /* Display the UPD parameters for SiliconInit */
-__attribute__((weak)) void soc_display_fsps_upd_params(
+__weak void soc_display_fsps_upd_params(
 	const FSPS_UPD *fsps_old_upd,
 	const FSPS_UPD *fsps_new_upd)
 {

src/drivers/intel/wifi/wifi.c

@@ -64,7 +64,7 @@ static int smbios_write_wifi(struct device *dev, int *handle,
 }
 #endif
 
-__attribute__((weak))
+__weak
 int get_wifi_sar_limits(struct wifi_sar_limits *sar_limits)
 {
 	return -1;