libpayload: Move base address, stack and heap size to Kconfig

This will allow more payloads to use the standard linker script
instead of implementing their own.

Change-Id: Ie60120769829f427ceb722109d85859b61dbde31
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: https://review.coreboot.org/14074
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>

payloads/libpayload/Kconfig

@@ -119,6 +119,35 @@ config MULTIBOOT
 	depends on ARCH_X86
 	default y
 
+config HEAP_SIZE
+	int "Heap size"
+	default 131072
+	help
+	  This is the heap size (malloc'able size) available
+	  to the payload.
+
+	  If unsure, set to 131072 (128K)
+
+config STACK_SIZE
+	int "Stack size"
+	default 16384
+	help
+	  This is the stack size available to the payload.
+
+	  If unsure, set to 16384 (16K)
+
+config BASE_ADDRESS
+	hex "Base address"
+	default 0x04000000 if ARCH_ARM
+	default 0x80100000 if ARCH_ARM64
+	default 0x00000000 if ARCH_MIPS
+	default 0x00100000 if ARCH_X86
+	help
+	  This is the base address for the payload.
+
+	  If unsure, set to 0x00100000 on x86, 0x00000000 on MIPS,
+	  0x04000000 on ARM or 0x80100000 on ARM64.
+
 endmenu
 
 menu "Standard Libraries"

payloads/libpayload/arch/arm/libpayload.ldscript

@@ -28,19 +28,14 @@
  * SUCH DAMAGE.
  */
 
-BASE_ADDRESS = 0x4000000;
-
 OUTPUT_FORMAT("elf32-littlearm","elf32-littlearm", "elf32-littlearm")
 OUTPUT_ARCH(arm)
 
 ENTRY(_entry)
 
-HEAP_SIZE = 2*64*1024;
-STACK_SIZE = 16384;
-
 SECTIONS
 {
-	. = BASE_ADDRESS;
+	. = CONFIG_LP_BASE_ADDRESS;
 
 	. = ALIGN(16);
 	_start = .;
@@ -74,12 +69,12 @@ SECTIONS
 
 		. = ALIGN(16);
 		_heap = .;
-		. += HEAP_SIZE;
+		. += CONFIG_LP_HEAP_SIZE;
 		. = ALIGN(16);
 		_eheap = .;
 
 		_estack = .;
-		. += STACK_SIZE;
+		. += CONFIG_LP_STACK_SIZE;
 		. = ALIGN(16);
 		_stack = .;
 	}

payloads/libpayload/arch/arm64/libpayload.ldscript

@@ -28,19 +28,14 @@
  * SUCH DAMAGE.
  */
 
-BASE_ADDRESS = 0x80100000;
-
 OUTPUT_FORMAT("elf64-littleaarch64","elf64-littleaarch64", "elf64-littleaarch64")
 OUTPUT_ARCH(arm64)
 
 ENTRY(_entry)
 
-HEAP_SIZE = 2*64*1024;
-STACK_SIZE = 16384;
-
 SECTIONS
 {
-	. = BASE_ADDRESS;
+	. = CONFIG_LP_BASE_ADDRESS;
 
 	. = ALIGN(16);
 	_start = .;
@@ -74,12 +69,12 @@ SECTIONS
 
 		. = ALIGN(16);
 		_heap = .;
-		. += HEAP_SIZE;
+		. += CONFIG_LP_HEAP_SIZE;
 		. = ALIGN(16);
 		_eheap = .;
 
 		_estack = .;
-		. += STACK_SIZE;
+		. += CONFIG_LP_STACK_SIZE;
 		. = ALIGN(16);
 		_stack = .;
 
@@ -88,7 +83,7 @@ SECTIONS
 		 */
 
 		_exc_estack = .;
-		. += STACK_SIZE;
+		. += CONFIG_LP_STACK_SIZE;
 		. = ALIGN(16);
 		_exc_stack = .;
 	}

payloads/libpayload/arch/mips/libpayload.ldscript

@@ -20,15 +20,11 @@
 
 OUTPUT_ARCH(mips)
 
-BASE_ADDRESS = 0x00000000;
 ENTRY(_entry)
 
-HEAP_SIZE = 2*64*1024;
-STACK_SIZE = 16*1024;
-
 SECTIONS
 {
-	. = BASE_ADDRESS;
+	. = CONFIG_LP_BASE_ADDRESS;
 
 	. = ALIGN(16);
 	_start = .;
@@ -68,12 +64,12 @@ SECTIONS
 
 		. = ALIGN(16);
 		_heap = .;
-		. += HEAP_SIZE;
+		. += CONFIG_LP_HEAP_SIZE;
 		. = ALIGN(16);
 		_eheap = .;
 
 		_estack = .;
-		. += STACK_SIZE;
+		. += CONFIG_LP_STACK_SIZE;
 		. = ALIGN(16);
 		_stack = .;
 	}

payloads/libpayload/arch/x86/libpayload.ldscript

@@ -27,19 +27,14 @@
  * SUCH DAMAGE.
  */
 
-BASE_ADDRESS = 0x100000;
-
 OUTPUT_FORMAT(elf32-i386)
 OUTPUT_ARCH(i386)
 
 ENTRY(_entry)
 
-HEAP_SIZE = 2*64*1024;
-STACK_SIZE = 16384;
-
 SECTIONS
 {
-	. = BASE_ADDRESS;
+	. = CONFIG_LP_BASE_ADDRESS;
 
 	. = ALIGN(16);
 	_start = .;
@@ -73,12 +68,12 @@ SECTIONS
 
 		. = ALIGN(16);
 		_heap = .;
-		. += HEAP_SIZE;
+		. += CONFIG_LP_HEAP_SIZE;
 		. = ALIGN(16);
 		_eheap = .;
 
 		_estack = .;
-		. += STACK_SIZE;
+		. += CONFIG_LP_STACK_SIZE;
 		. = ALIGN(16);
 		_stack = .;
 	}

payloads/libpayload/bin/lpgcc

@@ -187,6 +187,10 @@ else
             _LDFLAGS="$_LDFLAGS -Wl,--fix-cortex-a53-843419"
     fi
 
+    _LDFLAGS="$_LDFLAGS -Wl,--defsym=CONFIG_LP_BASE_ADDRESS=$CONFIG_LP_BASE_ADDRESS"
+    _LDFLAGS="$_LDFLAGS -Wl,--defsym=CONFIG_LP_HEAP_SIZE=$CONFIG_LP_HEAP_SIZE"
+    _LDFLAGS="$_LDFLAGS -Wl,--defsym=CONFIG_LP_STACK_SIZE=$CONFIG_LP_STACK_SIZE"
+
     if [ $DEBUGME -eq 1 ]; then
 	echo "$DEFAULT_CC $_LDFLAGS $HEAD_O $CMDLINE $_CFLAGS -lpayload $_LIBGCC"
     fi