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authorMartin Dorwig <dorwig@tetronik.com>2015-01-26 15:22:54 -0700
committerSimon Glass <sjg@chromium.org>2015-01-29 17:09:57 -0700
commit49cad54788a64a296567abadcd736fdbe47cc3a3 (patch)
tree8bf86512da0c8f5537743ba745b8f0084119bd2f /common
parent2017aaef8c383c910e791bf0f87fa4d6b78f5945 (diff)
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Export redesign
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@tetronik.com> Acked-by: Simon Glass <sjg@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> (resending to the list since my tweaks are not quite trivial)
Diffstat (limited to 'common')
-rw-r--r--common/cmd_load.c2
-rw-r--r--common/console.c20
-rw-r--r--common/exports.c29
3 files changed, 14 insertions, 37 deletions
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 fc1963b..3f25e76 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] = getc;
- gd->jt[XF_tstc] = tstc;
+ gd->jt->getc = getc;
+ gd->jt->tstc = tstc;
break;
case stdout:
- gd->jt[XF_putc] = putc;
- gd->jt[XF_puts] = puts;
- gd->jt[XF_printf] = printf;
+ gd->jt->putc = putc;
+ gd->jt->puts = puts;
+ gd->jt->printf = printf;
break;
}
break;
@@ -758,11 +758,11 @@ 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 459e18c..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;
@@ -13,34 +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
-#if !defined(CONFIG_CMD_I2C) || \
- (defined(CONFIG_DM_I2C) && !defined(CONFIG_DM_I2C_COMPAT))
-# 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>
}