From 78757d52c8b27f7f33ab4035706796a414c81128 Mon Sep 17 00:00:00 2001
From: Stanislav Galabov <sgalabov@gmail.com>
Date: Wed, 17 Feb 2016 15:23:31 +0200
Subject: Fix FreeBSD loader API so that it works on both 32-bit and 64-bit
 targets.

Specifically tested on MIPS under QEMU (works with all  combination of bit-ness and endian-ness)

Signed-off-by: Stanislav Galabov <sgalabov@gmail.com>
---
 examples/api/Makefile |  4 ++++
 examples/api/crt0.S   | 13 +++++++------
 examples/api/glue.c   | 18 +++++++++---------
 3 files changed, 20 insertions(+), 15 deletions(-)

(limited to 'examples')

diff --git a/examples/api/Makefile b/examples/api/Makefile
index 4e9b8ea..6cffee7 100644
--- a/examples/api/Makefile
+++ b/examples/api/Makefile
@@ -11,8 +11,12 @@ ifeq ($(ARCH),arm)
 LOAD_ADDR = 0x1000000
 endif
 ifeq ($(ARCH),mips)
+ifdef CONFIG_64BIT
+LOAD_ADDR = 0xffffffff80200000
+else
 LOAD_ADDR = 0x80200000
 endif
+endif
 
 # Resulting ELF and binary exectuables will be named demo and demo.bin
 extra-y = demo
diff --git a/examples/api/crt0.S b/examples/api/crt0.S
index ced2c82..5a7049d 100644
--- a/examples/api/crt0.S
+++ b/examples/api/crt0.S
@@ -41,28 +41,29 @@ syscall:
 	ldr	pc, [ip]
 
 #elif defined(CONFIG_MIPS)
+#include <asm/asm.h>
 	.text
 	.globl __start
 	.ent __start
 __start:
-	sw	$sp, search_hint
+	PTR_S	$sp, search_hint
 	b	main
 	.end __start
 
 	.globl syscall
 	.ent syscall
 syscall:
-	sw	$ra, return_addr
-	lw	$t9, syscall_ptr
+	PTR_S	$ra, return_addr
+	PTR_L	$t9, syscall_ptr
 	jalr	$t9
 	nop
-	lw	$ra, return_addr
+	PTR_L	$ra, return_addr
 	jr	$ra
 	nop
 	.end syscall
 
 return_addr:
-	.align 4
+	.align 8
 	.long 0
 #else
 #error No support for this arch!
@@ -70,7 +71,7 @@ return_addr:
 
 	.globl syscall_ptr
 syscall_ptr:
-	.align	4
+	.align	8
 	.long	0
 
 	.globl search_hint
diff --git a/examples/api/glue.c b/examples/api/glue.c
index d619518..8aabf32 100644
--- a/examples/api/glue.c
+++ b/examples/api/glue.c
@@ -77,7 +77,7 @@ int ub_getc(void)
 {
 	int c;
 
-	if (!syscall(API_GETC, NULL, (uint32_t)&c))
+	if (!syscall(API_GETC, NULL, &c))
 		return -1;
 
 	return c;
@@ -87,7 +87,7 @@ int ub_tstc(void)
 {
 	int t;
 
-	if (!syscall(API_TSTC, NULL, (uint32_t)&t))
+	if (!syscall(API_TSTC, NULL, &t))
 		return -1;
 
 	return t;
@@ -95,12 +95,12 @@ int ub_tstc(void)
 
 void ub_putc(char c)
 {
-	syscall(API_PUTC, NULL, (uint32_t)&c);
+	syscall(API_PUTC, NULL, &c);
 }
 
 void ub_puts(const char *s)
 {
-	syscall(API_PUTS, NULL, (uint32_t)s);
+	syscall(API_PUTS, NULL, s);
 }
 
 /****************************************
@@ -126,7 +126,7 @@ struct sys_info * ub_get_sys_info(void)
 	si.mr_no = UB_MAX_MR;
 	memset(&mr, 0, sizeof(mr));
 
-	if (!syscall(API_GET_SYS_INFO, &err, (u_int32_t)&si))
+	if (!syscall(API_GET_SYS_INFO, &err, &si))
 		return NULL;
 
 	return ((err) ? NULL : &si);
@@ -344,7 +344,7 @@ char * ub_env_get(const char *name)
 {
 	char *value;
 
-	if (!syscall(API_ENV_GET, NULL, (uint32_t)name, (uint32_t)&value))
+	if (!syscall(API_ENV_GET, NULL, name, &value))
 		return NULL;
 
 	return value;
@@ -352,7 +352,7 @@ char * ub_env_get(const char *name)
 
 void ub_env_set(const char *name, char *value)
 {
-	syscall(API_ENV_SET, NULL, (uint32_t)name, (uint32_t)value);
+	syscall(API_ENV_SET, NULL, name, value);
 }
 
 static char env_name[256];
@@ -369,7 +369,7 @@ const char * ub_env_enum(const char *last)
 	 * 'name=val' string), since the API_ENUM_ENV call uses envmatch()
 	 * internally, which handles such case
 	 */
-	if (!syscall(API_ENV_ENUM, NULL, (uint32_t)last, (uint32_t)&env))
+	if (!syscall(API_ENV_ENUM, NULL, last, &env))
 		return NULL;
 
 	if (!env)
@@ -396,7 +396,7 @@ int ub_display_get_info(int type, struct display_info *di)
 {
 	int err = 0;
 
-	if (!syscall(API_DISPLAY_GET_INFO, &err, (uint32_t)type, (uint32_t)di))
+	if (!syscall(API_DISPLAY_GET_INFO, &err, type, di))
 		return API_ESYSC;
 
 	return err;
-- 
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