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Second try: Introduce plugin_crt0.c that every plugin links.

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It handles exit() properly, calling the handler also when the plugin returns
normally (also make exit() more standard compliant while at it).
It also holds PLUGIN_HEADER, so that it doesn't need to be in each plugin anymore.

To work better together with callbacks passed to rb->default_event_handler_ex() introduce exit_on_usb() which will call the exit handler before showing the usb screen and exit() after it.
In most cases rb->default_event_handler_ex() was passed a callback which was manually called at all other return points. This can now be done via atexit().

In future plugin_crt0.c could also handle clearing bss, initializing iram and more.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27873 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Thomas Martitz 2010-08-24 14:30:46 +00:00
parent 3478bc5d6d
commit cae4ae2c71
142 changed files with 372 additions and 341 deletions
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12
apps/plugins/oscilloscope.c
View file

@ -23,12 +23,13 @@
#include "plugin.h"
#include "lib/helper.h"
#include "lib/pluginlib_exit.h"
#ifdef HAVE_LCD_BITMAP
#include "lib/xlcd.h"
#include "lib/configfile.h"
PLUGIN_HEADER
/* variable button definitions */
#if CONFIG_KEYPAD == RECORDER_PAD
@ -751,9 +752,8 @@ void anim_vertical(int cur_left, int cur_right)
last_pos = cur_y;
}
void cleanup(void *parameter)
void cleanup(void)
{
(void)parameter;
#if LCD_DEPTH > 1
rb->lcd_set_foreground(LCD_DEFAULT_FG);
rb->lcd_set_background(LCD_DEFAULT_BG);
@ -772,6 +772,7 @@ enum plugin_status plugin_start(const void* parameter)
(void)parameter;
atexit(cleanup);
configfile_load(cfg_filename, disk_config,
sizeof(disk_config) / sizeof(disk_config[0]),
CFGFILE_MINVERSION);
@ -892,9 +893,7 @@ enum plugin_status plugin_start(const void* parameter)
break;
default:
if (rb->default_event_handler_ex(button, cleanup, NULL)
== SYS_USB_CONNECTED)
return PLUGIN_USB_CONNECTED;
exit_on_usb(button);
break;
}
if (button != BUTTON_NONE)
@ -908,7 +907,6 @@ enum plugin_status plugin_start(const void* parameter)
displaymsg = true;
}
}
cleanup(NULL);
if (rb->memcmp(&osc, &osc_disk, sizeof(osc))) /* save settings if changed */
{
rb->memcpy(&osc_disk, &osc, sizeof(osc));