Merge pull request #36 from athoelke/at/gc-sections-80

Using GCC --gc-sections to eliminate unused code and data

3 files changed, 15 insertions, 19 deletions

diff --git a/plat/common/aarch64/platform_helpers.S b/plat/common/aarch64/platform_helpers.S
index 563f1989..50abb70b 100644
--- a/plat/common/aarch64/platform_helpers.S
+++ b/plat/common/aarch64/platform_helpers.S
@@ -30,6 +30,7 @@
 
 #include <arch.h>
 #include <platform.h>
+#include <asm_macros.S>
 
 
 	.globl	pcpu_dv_mem_stack
@@ -51,8 +52,6 @@
 #define PCPU_DV_MEM_STACK_SIZE	0x300
 #endif
 
-	.section	.text, "ax"; .align 3
-
 	/* -----------------------------------------------------
 	 * unsigned long long platform_set_coherent_stack
 	 *                                    (unsigned mpidr);
@@ -62,7 +61,7 @@
 	 * SCTLR.C bit e.g. while powering down a cpu
 	 * -----------------------------------------------------
 	 */
-platform_set_coherent_stack: ; .type platform_set_coherent_stack, %function
+func platform_set_coherent_stack
 	mov	x5, x30 // lr
 	bl	platform_get_core_pos
 	add	x0, x0, #1
@@ -79,7 +78,7 @@ platform_set_coherent_stack: ; .type platform_set_coherent_stack, %function
 	 *  				  CoreId
 	 * -----------------------------------------------------
 	 */
-platform_get_core_pos: ; .type platform_get_core_pos, %function
+func platform_get_core_pos
 	and	x1, x0, #MPIDR_CPU_MASK
 	and	x0, x0, #MPIDR_CLUSTER_MASK
 	add	x0, x1, x0, LSR #6
@@ -93,7 +92,7 @@ platform_get_core_pos: ; .type platform_get_core_pos, %function
 	 * cpu (applicable ony after a cold boot)
 	 * -----------------------------------------------------
 	 */
-platform_is_primary_cpu: ; .type platform_is_primary_cpu, %function
+func platform_is_primary_cpu
 	and	x0, x0, #(MPIDR_CLUSTER_MASK | MPIDR_CPU_MASK)
 	cmp	x0, #PRIMARY_CPU
 	cset	x0, eq
@@ -103,7 +102,7 @@ platform_is_primary_cpu: ; .type platform_is_primary_cpu, %function
 	 * void platform_get_stack (unsigned long mpidr)
 	 * -----------------------------------------------------
 	 */
-platform_get_stack: ; .type platform_get_stack, %function
+func platform_get_stack
 	mov	x10, x30 // lr
 	bl	platform_get_core_pos
 	add	x0, x0, #1
@@ -117,7 +116,7 @@ platform_get_stack: ; .type platform_get_stack, %function
 	 * void platform_set_stack (unsigned long mpidr)
 	 * -----------------------------------------------------
 	 */
-platform_set_stack: ; .type platform_set_stack, %function
+func platform_set_stack
 	mov	x9, x30 // lr
 	bl	platform_get_stack
 	mov	sp, x0
@@ -128,7 +127,7 @@ platform_set_stack: ; .type platform_set_stack, %function
 	 * each platform.
 	 * -----------------------------------------------------
 	 */
-platform_check_mpidr: ; .type platform_check_mpidr, %function
+func platform_check_mpidr
 	mov	x0, xzr
 	ret
 
@@ -137,7 +136,7 @@ platform_check_mpidr: ; .type platform_check_mpidr, %function
 	 * each platform.
 	 * -----------------------------------------------------
 	 */
-plat_report_exception:
+func plat_report_exception
 	ret
 
 	/* -----------------------------------------------------
diff --git a/plat/fvp/aarch64/bl1_plat_helpers.S b/plat/fvp/aarch64/bl1_plat_helpers.S
index c487f033..fad37aff 100644
--- a/plat/fvp/aarch64/bl1_plat_helpers.S
+++ b/plat/fvp/aarch64/bl1_plat_helpers.S
@@ -32,15 +32,13 @@
 #include <platform.h>
 #include <fvp_pwrc.h>
 #include <gic.h>
+#include <asm_macros.S>
 
 	.globl	platform_get_entrypoint
 	.globl	platform_cold_boot_init
 	.globl	plat_secondary_cold_boot_setup
 
 
-	.section	.text, "ax"; .align 3
-
-
 	.macro	platform_choose_gicmmap  param1, param2, x_tmp, w_tmp, res
 	ldr	\x_tmp, =VE_SYSREGS_BASE + V2M_SYS_ID
 	ldr	\w_tmp, [\x_tmp]
@@ -60,7 +58,7 @@
 	 * that the request has gone through.
 	 * -----------------------------------------------------
 	 */
-plat_secondary_cold_boot_setup: ; .type plat_secondary_cold_boot_setup, %function
+func plat_secondary_cold_boot_setup
 	bl	read_mpidr
 	mov	x19, x0
 	bl	platform_get_core_pos
@@ -120,7 +118,7 @@ cb_panic:
 	 * 	reset all cpus will read the same WK field
 	 * -----------------------------------------------------
 	 */
-platform_get_entrypoint: ; .type platform_get_entrypoint, %function
+func platform_get_entrypoint
 	mov	x9, x30 // lr
 	mov	x2, x0
 	ldr	x1, =PWRC_BASE
@@ -160,7 +158,7 @@ _panic:	b	_panic
 	 * BL1 will always read the mailboxes with the MMU off
 	 * -----------------------------------------------------
 	 */
-platform_mem_init: ; .type platform_mem_init, %function
+func platform_mem_init
 	ldr	x0, =TZDRAM_BASE + MBOX_OFF
 	stp	xzr, xzr, [x0, #0]
 	stp	xzr, xzr, [x0, #0x10]
@@ -176,7 +174,7 @@ platform_mem_init: ; .type platform_mem_init, %function
 	 * boot to perform early platform initialization
 	 * -----------------------------------------------------
 	 */
-platform_cold_boot_init: ; .type platform_cold_boot_init, %function
+func platform_cold_boot_init
 	mov	x20, x0
 	bl	platform_mem_init
 	bl	read_mpidr
diff --git a/plat/fvp/aarch64/plat_helpers.S b/plat/fvp/aarch64/plat_helpers.S
index 032b393d..ab826f4c 100644
--- a/plat/fvp/aarch64/plat_helpers.S
+++ b/plat/fvp/aarch64/plat_helpers.S
@@ -30,11 +30,10 @@
 
 #include <arch.h>
 #include <platform.h>
+#include <asm_macros.S>
 
 	.globl	plat_report_exception
 
-	.section	.text, "ax"
-
 	/* ---------------------------------------------
 	 * void plat_report_exception(unsigned int type)
 	 * Function to report an unhandled exception
@@ -43,7 +42,7 @@
 	 * to indicate where we are
 	 * ---------------------------------------------
 	 */
-plat_report_exception:
+func plat_report_exception
 	mrs	x1, CurrentEl
 	lsr	x1, x1, #MODE_EL_SHIFT
 	lsl	x1, x1, #SYS_LED_EL_SHIFT