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Export redesign

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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)
This commit is contained in:
Martin Dorwig
2015-01-26 15:22:54 -07:00
committed by Simon Glass
parent 2017aaef8c
commit 49cad54788
10 changed files with 163 additions and 121 deletions
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20
common/console.c
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@@ -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 */