[U-Boot] [PATCH v3] Export redesign
Martin Dorwig
dorwig at tetronik.com
Mon Dec 1 08:16:20 CET 2014
this is an atempt to make the export of functions typesafe.
I replaced the jumptable void ** by a struct (jt_funcs) with function pointers.
The EXPORT_FUNC macro now has 3 fixed parameters and one
variadic parameter
The first is the name of the exported function,
the rest of the parameters are used to format a functionpointer
in the jumptable,
the EXPORT_FUNC macros are expanded three times,
1. to declare the members of the struct
2. to initialize the structmember pointers
3. to call the functions in stubs.c
Signed-off-by: Martin Dorwig <dorwig at tetronik.com>
---
Changes in v3:
- install_hdlr/free_hdlr must be dummy, since they do not exist
- blackfin cpu.c must include exports.h
- rebased to master
- take CONFIG_DM_SPI into account
Changes in v2:
- redesign the way functions are exported to standalone applications
arch/blackfin/cpu/cpu.c | 3 +-
board/BuS/eb_cpux9k2/cpux9k2.c | 2 +-
common/cmd_load.c | 2 +-
common/console.c | 20 ++++----
common/exports.c | 28 ++---------
doc/README.standalone | 41 +++++++++++-----
examples/standalone/stubs.c | 64 ++++++++++++-------------
include/_exports.h | 98 +++++++++++++++++++++++++++------------
include/asm-generic/global_data.h | 2 +-
include/exports.h | 15 +++---
10 files changed, 157 insertions(+), 118 deletions(-)
diff --git a/arch/blackfin/cpu/cpu.c b/arch/blackfin/cpu/cpu.c
index b7f1188..91aa5cc 100644
--- a/arch/blackfin/cpu/cpu.c
+++ b/arch/blackfin/cpu/cpu.c
@@ -24,6 +24,7 @@
#include "cpu.h"
#include "initcode.h"
+#include "exports.h"
ulong bfin_poweron_retx;
DECLARE_GLOBAL_DATA_PTR;
@@ -121,7 +122,7 @@ static void display_global_data(void)
printf(" |-ram_size: %lx\n", gd->ram_size);
printf(" |-env_addr: %lx\n", gd->env_addr);
printf(" |-env_valid: %lx\n", gd->env_valid);
- printf(" |-jt(%p): %p\n", gd->jt, *(gd->jt));
+ printf(" |-jt(%p): %p\n", gd->jt, gd->jt->get_version);
printf(" \\-bd: %p\n", gd->bd);
printf(" |-bi_boot_params: %lx\n", bd->bi_boot_params);
printf(" |-bi_memstart: %lx\n", bd->bi_memstart);
diff --git a/board/BuS/eb_cpux9k2/cpux9k2.c b/board/BuS/eb_cpux9k2/cpux9k2.c
index 5e4778e..76ad7c4 100644
--- a/board/BuS/eb_cpux9k2/cpux9k2.c
+++ b/board/BuS/eb_cpux9k2/cpux9k2.c
@@ -98,7 +98,7 @@ int misc_init_r(void)
puts("Error: invalid MAC at EEPROM\n");
}
}
- gd->jt[XF_do_reset] = (void *) do_reset;
+ gd->jt->do_reset = do_reset;
#ifdef CONFIG_STATUS_LED
status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING);
diff --git a/common/cmd_load.c b/common/cmd_load.c
index f6e522c..d043e6d 100644
--- a/common/cmd_load.c
+++ b/common/cmd_load.c
@@ -222,7 +222,7 @@ static int read_record(char *buf, ulong len)
}
/* Check for the console hangup (if any different from serial) */
- if (gd->jt[XF_getc] != getc) {
+ if (gd->jt->getc != getc) {
if (ctrlc()) {
return (-1);
}
diff --git a/common/console.c b/common/console.c
index 4695386..1ccb750 100644
--- a/common/console.c
+++ b/common/console.c
@@ -125,13 +125,13 @@ static int console_setfile(int file, struct stdio_dev * dev)
*/
switch (file) {
case stdin:
- gd->jt[XF_getc] = dev->getc;
- gd->jt[XF_tstc] = dev->tstc;
+ gd->jt->getc = getc;
+ gd->jt->tstc = tstc;
break;
case stdout:
- gd->jt[XF_putc] = dev->putc;
- gd->jt[XF_puts] = dev->puts;
- gd->jt[XF_printf] = printf;
+ gd->jt->putc = putc;
+ gd->jt->puts = puts;
+ gd->jt->printf = printf;
break;
}
break;
@@ -723,11 +723,11 @@ int console_init_r(void)
#endif
/* set default handlers at first */
- gd->jt[XF_getc] = serial_getc;
- gd->jt[XF_tstc] = serial_tstc;
- gd->jt[XF_putc] = serial_putc;
- gd->jt[XF_puts] = serial_puts;
- gd->jt[XF_printf] = serial_printf;
+ gd->jt->getc = serial_getc;
+ gd->jt->tstc = serial_tstc;
+ gd->jt->putc = serial_putc;
+ gd->jt->puts = serial_puts;
+ gd->jt->printf = serial_printf;
/* stdin stdout and stderr are in environment */
/* scan for it */
diff --git a/common/exports.c b/common/exports.c
index 88fcfc8..333107c 100644
--- a/common/exports.c
+++ b/common/exports.c
@@ -1,6 +1,7 @@
#include <common.h>
#include <exports.h>
#include <spi.h>
+#include <i2c.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -13,33 +14,10 @@ unsigned long get_version(void)
return XF_VERSION;
}
-/* Reuse _exports.h with a little trickery to avoid bitrot */
-#define EXPORT_FUNC(sym) gd->jt[XF_##sym] = (void *)sym;
-
-#if !defined(CONFIG_X86) && !defined(CONFIG_PPC)
-# define install_hdlr dummy
-# define free_hdlr dummy
-#else /* kludge for non-standard function naming */
-# define install_hdlr irq_install_handler
-# define free_hdlr irq_free_handler
-#endif
-#ifndef CONFIG_CMD_I2C
-# define i2c_write dummy
-# define i2c_read dummy
-#endif
-#if !defined(CONFIG_CMD_SPI) || defined(CONFIG_DM_SPI)
-# define spi_init dummy
-# define spi_setup_slave dummy
-# define spi_free_slave dummy
-#endif
-#ifndef CONFIG_CMD_SPI
-# define spi_claim_bus dummy
-# define spi_release_bus dummy
-# define spi_xfer dummy
-#endif
+#define EXPORT_FUNC(f, a, x, ...) gd->jt->x = f;
void jumptable_init(void)
{
- gd->jt = malloc(XF_MAX * sizeof(void *));
+ gd->jt = malloc(sizeof(struct jt_funcs));
#include <_exports.h>
}
diff --git a/doc/README.standalone b/doc/README.standalone
index e3000ef..659a12f 100644
--- a/doc/README.standalone
+++ b/doc/README.standalone
@@ -5,18 +5,18 @@ Design Notes on Exporting U-Boot Functions to Standalone Applications:
table is allocated and initialized in the jumptable_init() routine
(common/exports.c). Other routines may also modify the jump table,
however. The jump table can be accessed as the 'jt' field of the
- 'global_data' structure. The slot numbers for the jump table are
+ 'global_data' structure. The struct members for the jump table are
defined in the <include/exports.h> header. E.g., to substitute the
malloc() and free() functions that will be available to standalone
applications, one should do the following:
DECLARE_GLOBAL_DATA_PTR;
- gd->jt[XF_malloc] = my_malloc;
- gd->jt[XF_free] = my_free;
+ gd->jt->malloc = my_malloc;
+ gd->jt->free = my_free;
- Note that the pointers to the functions all have 'void *' type and
- thus the compiler cannot perform type checks on these assignments.
+ Note that the pointers to the functions are real function pointers
+ so the compiler can perform type checks on these assignments.
2. The pointer to the jump table is passed to the application in a
machine-dependent way. PowerPC, ARM, MIPS, Blackfin and Nios II
@@ -65,27 +65,46 @@ Design Notes on Exporting U-Boot Functions to Standalone Applications:
=> tftp 0x40000 hello_world.bin
=> go 0x40004
-5. To export some additional function foobar(), the following steps
+5. To export some additional function long foobar(int i,char c), the following steps
should be undertaken:
- Append the following line at the end of the include/_exports.h
file:
- EXPORT_FUNC(foobar)
+ EXPORT_FUNC(foobar, long, foobar, int, char)
+
+ Parameters to EXPORT_FUNC:
+ - the first parameter is the function that is exported (default implementation)
+ - the second parameter is the return value type
+ - the third parameter is the name of the member in struct jt_funcs
+ this is also the name that the standalone application will used.
+ the rest of the parameters are the function arguments
- Add the prototype for this function to the include/exports.h
file:
- void foobar(void);
+ long foobar(int i, char c);
+
+ Initialization with the default implementation is done in jumptable_init()
+
+ You can override the default implementation using:
- - Add the initialization of the jump table slot wherever
- appropriate (most likely, to the jumptable_init() function):
+ gd->jt->foobar = another_foobar;
- gd->jt[XF_foobar] = foobar;
+ The signature of another_foobar must then match the declaration of foobar.
- Increase the XF_VERSION value by one in the include/exports.h
file
+ - If you want to export a function which depends on a CONFIG_XXX
+ use 2 lines like this:
+ #ifdef CONFIG_FOOBAR
+ EXPORT_FUNC(foobar, long, foobar, int, char)
+ #else
+ EXPORT_FUNC(dummy, void, foobar, void)
+ #endif
+
+
6. The code for exporting the U-Boot functions to applications is
mostly machine-independent. The only places written in assembly
language are stub functions that perform the jump through the jump
diff --git a/examples/standalone/stubs.c b/examples/standalone/stubs.c
index 0bf690e..920a0a9 100644
--- a/examples/standalone/stubs.c
+++ b/examples/standalone/stubs.c
@@ -2,6 +2,8 @@
#include <exports.h>
#include <linux/compiler.h>
+#define FO(x) offsetof(struct jt_funcs, x)
+
#if defined(CONFIG_X86)
/*
* x86 does not have a dedicated register to store the pointer to
@@ -10,23 +12,23 @@
* from flash memory. The global_data address is passed as argv[-1]
* to the application program.
*/
-static void **jt;
+static struct jt_funcs *jt;
gd_t *global_data;
-#define EXPORT_FUNC(x) \
+#define EXPORT_FUNC(f, a, x, ...) \
asm volatile ( \
" .globl " #x "\n" \
#x ":\n" \
" movl %0, %%eax\n" \
" movl jt, %%ecx\n" \
" jmp *(%%ecx, %%eax)\n" \
- : : "i"(XF_ ## x * sizeof(void *)) : "eax", "ecx");
+ : : "i"(FO(x)) : "eax", "ecx");
#elif defined(CONFIG_PPC)
/*
* r2 holds the pointer to the global_data, r11 is a call-clobbered
* register
*/
-#define EXPORT_FUNC(x) \
+#define EXPORT_FUNC(f, a, x, ...) \
asm volatile ( \
" .globl " #x "\n" \
#x ":\n" \
@@ -34,33 +36,33 @@ gd_t *global_data;
" lwz %%r11, %1(%%r11)\n" \
" mtctr %%r11\n" \
" bctr\n" \
- : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "r11");
+ : : "i"(offsetof(gd_t, jt)), "i"(FO(x)) : "r11");
#elif defined(CONFIG_ARM)
#ifdef CONFIG_ARM64
/*
* x18 holds the pointer to the global_data, x9 is a call-clobbered
* register
*/
-#define EXPORT_FUNC(x) \
+#define EXPORT_FUNC(f, a, x, ...) \
asm volatile ( \
" .globl " #x "\n" \
#x ":\n" \
" ldr x9, [x18, %0]\n" \
" ldr x9, [x9, %1]\n" \
" br x9\n" \
- : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "x9");
+ : : "i"(offsetof(gd_t, jt)), "i"(FO(x)) : "x9");
#else
/*
* r9 holds the pointer to the global_data, ip is a call-clobbered
* register
*/
-#define EXPORT_FUNC(x) \
+#define EXPORT_FUNC(f, a, x, ...) \
asm volatile ( \
" .globl " #x "\n" \
#x ":\n" \
" ldr ip, [r9, %0]\n" \
" ldr pc, [ip, %1]\n" \
- : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "ip");
+ : : "i"(offsetof(gd_t, jt)), "i"(FO(x)) : "ip");
#endif
#elif defined(CONFIG_MIPS)
/*
@@ -70,19 +72,19 @@ gd_t *global_data;
* it; however, GCC/mips generates an additional `nop' after each asm
* statement
*/
-#define EXPORT_FUNC(x) \
+#define EXPORT_FUNC(f, a, x, ...) \
asm volatile ( \
" .globl " #x "\n" \
#x ":\n" \
" lw $25, %0($26)\n" \
" lw $25, %1($25)\n" \
" jr $25\n" \
- : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "t9");
+ : : "i"(offsetof(gd_t, jt)), "i"(FO(x)) : "t9");
#elif defined(CONFIG_NIOS2)
/*
* gp holds the pointer to the global_data, r8 is call-clobbered
*/
-#define EXPORT_FUNC(x) \
+#define EXPORT_FUNC(f, a, x, ...) \
asm volatile ( \
" .globl " #x "\n" \
#x ":\n" \
@@ -92,13 +94,13 @@ gd_t *global_data;
" ldw r8, 0(r8)\n" \
" ldw r8, %1(r8)\n" \
" jmp r8\n" \
- : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "gp");
+ : : "i"(offsetof(gd_t, jt)), "i"(FO(x)) : "gp");
#elif defined(CONFIG_M68K)
/*
* d7 holds the pointer to the global_data, a0 is a call-clobbered
* register
*/
-#define EXPORT_FUNC(x) \
+#define EXPORT_FUNC(f, a, x, ...) \
asm volatile ( \
" .globl " #x "\n" \
#x ":\n" \
@@ -108,50 +110,50 @@ gd_t *global_data;
" adda.l %1, %%a0\n" \
" move.l (%%a0), %%a0\n" \
" jmp (%%a0)\n" \
- : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "a0");
+ : : "i"(offsetof(gd_t, jt)), "i"(FO(x)) : "a0");
#elif defined(CONFIG_MICROBLAZE)
/*
* r31 holds the pointer to the global_data. r5 is a call-clobbered.
*/
-#define EXPORT_FUNC(x) \
+#define EXPORT_FUNC(f, a, x, ...) \
asm volatile ( \
" .globl " #x "\n" \
#x ":\n" \
" lwi r5, r31, %0\n" \
" lwi r5, r5, %1\n" \
" bra r5\n" \
- : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "r5");
+ : : "i"(offsetof(gd_t, jt)), "i"(FO(x)) : "r5");
#elif defined(CONFIG_BLACKFIN)
/*
* P3 holds the pointer to the global_data, P0 is a call-clobbered
* register
*/
-#define EXPORT_FUNC(x) \
+#define EXPORT_FUNC(f, a, x, ...) \
asm volatile ( \
" .globl _" #x "\n_" \
#x ":\n" \
" P0 = [P3 + %0]\n" \
" P0 = [P0 + %1]\n" \
" JUMP (P0)\n" \
- : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "P0");
+ : : "i"(offsetof(gd_t, jt)), "i"(FO(x)) : "P0");
#elif defined(CONFIG_AVR32)
/*
* r6 holds the pointer to the global_data. r8 is call clobbered.
*/
-#define EXPORT_FUNC(x) \
+#define EXPORT_FUNC(f, a, x, ...) \
asm volatile( \
" .globl\t" #x "\n" \
#x ":\n" \
" ld.w r8, r6[%0]\n" \
" ld.w pc, r8[%1]\n" \
: \
- : "i"(offsetof(gd_t, jt)), "i"(XF_ ##x) \
+ : "i"(offsetof(gd_t, jt)), "i"(FO(x)) \
: "r8");
#elif defined(CONFIG_SH)
/*
* r13 holds the pointer to the global_data. r1 is a call clobbered.
*/
-#define EXPORT_FUNC(x) \
+#define EXPORT_FUNC(f, a, x, ...) \
asm volatile ( \
" .align 2\n" \
" .globl " #x "\n" \
@@ -164,12 +166,12 @@ gd_t *global_data;
" jmp @r1\n" \
" nop\n" \
" nop\n" \
- : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "r1", "r2");
+ : : "i"(offsetof(gd_t, jt)), "i"(FO(x)) : "r1", "r2");
#elif defined(CONFIG_SPARC)
/*
* g7 holds the pointer to the global_data. g1 is call clobbered.
*/
-#define EXPORT_FUNC(x) \
+#define EXPORT_FUNC(f, a, x, ...) \
asm volatile( \
" .globl\t" #x "\n" \
#x ":\n" \
@@ -179,26 +181,26 @@ gd_t *global_data;
" ld [%%g1 + %1], %%g1\n" \
" jmp %%g1\n" \
" nop\n" \
- : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "g1" );
+ : : "i"(offsetof(gd_t, jt)), "i"(FO(x)) : "g1");
#elif defined(CONFIG_NDS32)
/*
* r16 holds the pointer to the global_data. gp is call clobbered.
* not support reduced register (16 GPR).
*/
-#define EXPORT_FUNC(x) \
+#define EXPORT_FUNC(f, a, x, ...) \
asm volatile ( \
" .globl " #x "\n" \
#x ":\n" \
" lwi $r16, [$gp + (%0)]\n" \
" lwi $r16, [$r16 + (%1)]\n" \
" jr $r16\n" \
- : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "$r16");
+ : : "i"(offsetof(gd_t, jt)), "i"(FO(x)) : "$r16");
#elif defined(CONFIG_OPENRISC)
/*
* r10 holds the pointer to the global_data, r13 is a call-clobbered
* register
*/
-#define EXPORT_FUNC(x) \
+#define EXPORT_FUNC(f, a, x, ...) \
asm volatile ( \
" .globl " #x "\n" \
#x ":\n" \
@@ -206,12 +208,12 @@ gd_t *global_data;
" l.lwz r13, %1(r13)\n" \
" l.jr r13\n" \
" l.nop\n" \
- : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "r13");
+ : : "i"(offsetof(gd_t, jt)), "i"(FO(x)) : "r13");
#elif defined(CONFIG_ARC)
/*
* r25 holds the pointer to the global_data. r10 is call clobbered.
*/
-#define EXPORT_FUNC(x) \
+#define EXPORT_FUNC(f, a, x, ...) \
asm volatile( \
" .align 4\n" \
" .globl " #x "\n" \
@@ -219,7 +221,7 @@ gd_t *global_data;
" ld r10, [r25, %0]\n" \
" ld r10, [r10, %1]\n" \
" j [r10]\n" \
- : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "r10");
+ : : "i"(offsetof(gd_t, jt)), "i"(FO(x)) : "r10");
#else
/*" addi $sp, $sp, -24\n" \
" br $r16\n" \*/
diff --git a/include/_exports.h b/include/_exports.h
index 349a3c5..14e6918 100644
--- a/include/_exports.h
+++ b/include/_exports.h
@@ -1,32 +1,72 @@
/*
- * You do not need to use #ifdef around functions that may not exist
+ * You need to use #ifdef around functions that may not exist
* in the final configuration (such as i2c).
+ * use a dummyfunction as first parameter to EXPORT_FUNC.
+ * As an example see the CONFIG_CMD_I2C section below
*/
-EXPORT_FUNC(get_version)
-EXPORT_FUNC(getc)
-EXPORT_FUNC(tstc)
-EXPORT_FUNC(putc)
-EXPORT_FUNC(puts)
-EXPORT_FUNC(printf)
-EXPORT_FUNC(install_hdlr)
-EXPORT_FUNC(free_hdlr)
-EXPORT_FUNC(malloc)
-EXPORT_FUNC(free)
-EXPORT_FUNC(udelay)
-EXPORT_FUNC(get_timer)
-EXPORT_FUNC(vprintf)
-EXPORT_FUNC(do_reset)
-EXPORT_FUNC(getenv)
-EXPORT_FUNC(setenv)
-EXPORT_FUNC(simple_strtoul)
-EXPORT_FUNC(strict_strtoul)
-EXPORT_FUNC(simple_strtol)
-EXPORT_FUNC(strcmp)
-EXPORT_FUNC(i2c_write)
-EXPORT_FUNC(i2c_read)
-EXPORT_FUNC(spi_init)
-EXPORT_FUNC(spi_setup_slave)
-EXPORT_FUNC(spi_free_slave)
-EXPORT_FUNC(spi_claim_bus)
-EXPORT_FUNC(spi_release_bus)
-EXPORT_FUNC(spi_xfer)
+#ifndef EXPORT_FUNC
+#define EXPORT_FUNC(a, b, c, ...)
+#endif
+ EXPORT_FUNC(get_version, unsigned long, get_version, void)
+ EXPORT_FUNC(getc, int, getc, void)
+ EXPORT_FUNC(tstc, int, tstc, void)
+ EXPORT_FUNC(putc, void, putc, const char)
+ EXPORT_FUNC(puts, void, puts, const char *)
+ EXPORT_FUNC(printf, int, printf, const char*, ...)
+#if defined(CONFIG_X86) || defined(CONFIG_PPC)
+ EXPORT_FUNC(irq_install_handler, void, install_hdlr,
+ int, interrupt_handler_t, void*)
+
+ EXPORT_FUNC(irq_free_handler, void, free_hdlr, int)
+#else
+ EXPORT_FUNC(dummy, void, install_hdlr, void)
+ EXPORT_FUNC(dummy, void, free_hdlr, void)
+#endif
+ EXPORT_FUNC(malloc, void *, malloc, size_t)
+ EXPORT_FUNC(free, void, free, void *)
+ EXPORT_FUNC(udelay, void, udelay, unsigned long)
+ EXPORT_FUNC(get_timer, unsigned long, get_timer, unsigned long)
+ EXPORT_FUNC(vprintf, int, vprintf, const char *, va_list)
+ EXPORT_FUNC(do_reset, int, do_reset, cmd_tbl_t *,
+ int , int , char * const [])
+ EXPORT_FUNC(getenv, char *, getenv, const char*)
+ EXPORT_FUNC(setenv, int, setenv, const char *, const char *)
+ EXPORT_FUNC(simple_strtoul, unsigned long, simple_strtoul,
+ const char *, char **, unsigned int)
+ EXPORT_FUNC(strict_strtoul, int, strict_strtoul,
+ const char *, unsigned int , unsigned long *)
+ EXPORT_FUNC(simple_strtol, long, simple_strtol,
+ const char *, char **, unsigned int)
+ EXPORT_FUNC(strcmp, int, strcmp, const char *cs, const char *ct)
+#ifdef CONFIG_CMD_I2C
+ EXPORT_FUNC(i2c_write, int, i2c_write, uchar, uint, int , uchar * , int)
+ EXPORT_FUNC(i2c_read, int, i2c_read, uchar, uint, int , uchar * , int)
+#else
+ EXPORT_FUNC(dummy, void, i2c_write, void)
+ EXPORT_FUNC(dummy, void, i2c_read, void)
+#endif
+
+#if !defined(CONFIG_CMD_SPI) || defined(CONFIG_DM_SPI)
+ EXPORT_FUNC(dummy, void, spi_init, void)
+ EXPORT_FUNC(dummy, void, spi_setup_slave, void)
+ EXPORT_FUNC(dummy, void, spi_free_slave, void)
+#else
+ EXPORT_FUNC(spi_init, void, spi_init, void)
+ EXPORT_FUNC(spi_setup_slave, struct spi_slave *, spi_setup_slave,
+ unsigned int, unsigned int, unsigned int, unsigned int)
+ EXPORT_FUNC(spi_free_slave, void, spi_free_slave, struct spi_slave *)
+#endif
+#ifndef CONFIG_CMD_SPI
+ EXPORT_FUNC(dummy, void, spi_claim_bus, void)
+ EXPORT_FUNC(dummy, void, spi_release_bus, void)
+ EXPORT_FUNC(dummy, void, spi_xfer, void)
+#else
+ EXPORT_FUNC(spi_claim_bus, int, spi_claim_bus, struct spi_slave *)
+ EXPORT_FUNC(spi_release_bus, void, spi_release_bus, struct spi_slave *)
+ EXPORT_FUNC(spi_xfer, int, spi_xfer, struct spi_slave *,
+ unsigned int, const void *, void *, unsigned long)
+#endif
+ EXPORT_FUNC(ustrtoul, unsigned long, ustrtoul,
+ const char *, char **, unsigned int)
+ EXPORT_FUNC(ustrtoull, unsigned long long, ustrtoull,
+ const char *, char **, unsigned int)
diff --git a/include/asm-generic/global_data.h b/include/asm-generic/global_data.h
index 9c5a1e1..070b7ac 100644
--- a/include/asm-generic/global_data.h
+++ b/include/asm-generic/global_data.h
@@ -73,7 +73,7 @@ typedef struct global_data {
const void *fdt_blob; /* Our device tree, NULL if none */
void *new_fdt; /* Relocated FDT */
unsigned long fdt_size; /* Space reserved for relocated FDT */
- void **jt; /* jump table */
+ struct jt_funcs *jt; /* jump table */
char env_buf[32]; /* buffer for getenv() before reloc. */
#ifdef CONFIG_TRACE
void *trace_buff; /* The trace buffer */
diff --git a/include/exports.h b/include/exports.h
index 41d5085..48069b3 100644
--- a/include/exports.h
+++ b/include/exports.h
@@ -10,19 +10,19 @@ int tstc(void);
void putc(const char);
void puts(const char*);
int printf(const char* fmt, ...);
-void install_hdlr(int, void (*interrupt_handler_t)(void *), void*);
+void install_hdlr(int, interrupt_handler_t, void*);
void free_hdlr(int);
void *malloc(size_t);
void free(void*);
void __udelay(unsigned long);
unsigned long get_timer(unsigned long);
int vprintf(const char *, va_list);
-unsigned long simple_strtoul(const char *cp,char **endp,unsigned int base);
+unsigned long simple_strtoul(const char *cp, char **endp, unsigned int base);
int strict_strtoul(const char *cp, unsigned int base, unsigned long *res);
char *getenv (const char *name);
int setenv (const char *varname, const char *varvalue);
-long simple_strtol(const char *cp,char **endp,unsigned int base);
-int strcmp(const char * cs,const char * ct);
+long simple_strtol(const char *cp, char **endp, unsigned int base);
+int strcmp(const char *cs, const char *ct);
unsigned long ustrtoul(const char *cp, char **endp, unsigned int base);
unsigned long long ustrtoull(const char *cp, char **endp, unsigned int base);
#if defined(CONFIG_CMD_I2C)
@@ -34,14 +34,13 @@ void app_startup(char * const *);
#endif /* ifndef __ASSEMBLY__ */
-enum {
-#define EXPORT_FUNC(x) XF_ ## x ,
+struct jt_funcs {
+#define EXPORT_FUNC(impl, res, func, ...) res(*func)(__VA_ARGS__);
#include <_exports.h>
#undef EXPORT_FUNC
-
- XF_MAX
};
+
#define XF_VERSION 6
#if defined(CONFIG_X86)
--
1.8.1.4
More information about the U-Boot
mailing list