Revert "Introduce a small api for loading code (codecs,plugins) from disk/memory."
I don't understand the build error at all, plugin_bss_start is clearly defined in plugin.lds
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27901 a1c6a512-1295-4272-9138-f99709370657
diff --git a/apps/codecs.c b/apps/codecs.c
index b072c65..9e77dd9 100644
--- a/apps/codecs.c
+++ b/apps/codecs.c
@@ -28,7 +28,6 @@
#include <ctype.h>
#include <stdarg.h>
#include "string-extra.h"
-#include "load_code.h"
#include "debug.h"
#include "button.h"
#include "dir.h"
@@ -75,13 +74,26 @@
extern void* plugin_get_audio_buffer(size_t *buffer_size);
-#if (CONFIG_PLATFORM & PLATFORM_NATIVE) && defined(HAVE_RECORDING)
#undef open
static int open(const char* pathname, int flags, ...)
{
+#if (CONFIG_PLATFORM & PLATFORM_HOSTED)
+ int fd;
+ if (flags & O_CREAT)
+ {
+ va_list ap;
+ va_start(ap, flags);
+ fd = sim_open(pathname, flags, va_arg(ap, unsigned int));
+ va_end(ap);
+ }
+ else
+ fd = sim_open(pathname, flags);
+
+ return fd;
+#else
return file_open(pathname, flags);
-}
#endif
+}
struct codec_api ci = {
0, /* filesize */
@@ -185,46 +197,62 @@
CODECS_DIR, codec_root_fn);
}
-static int codec_load_ram(void *handle, struct codec_api *api)
+static int codec_load_ram(int size, struct codec_api *api)
{
- struct codec_header *hdr = lc_get_header(handle);
+ struct codec_header *hdr;
int status;
-
- if (hdr == NULL
+#if (CONFIG_PLATFORM & PLATFORM_NATIVE)
+ hdr = (struct codec_header *)codecbuf;
+
+ if (size <= (signed)sizeof(struct codec_header)
|| (hdr->magic != CODEC_MAGIC
#ifdef HAVE_RECORDING
&& hdr->magic != CODEC_ENC_MAGIC
#endif
)
|| hdr->target_id != TARGET_ID
-#if (CONFIG_PLATFORM & PLATFORM_NATIVE)
|| hdr->load_addr != codecbuf
- || hdr->end_addr > codecbuf + CODEC_SIZE
-#endif
- )
+ || hdr->end_addr > codecbuf + CODEC_SIZE)
{
logf("codec header error");
- lc_close(handle);
return CODEC_ERROR;
}
+ codec_size = hdr->end_addr - codecbuf;
+
+#elif (CONFIG_PLATFORM & PLATFORM_HOSTED)
+ void *pd;
+
+ hdr = sim_codec_load_ram(codecbuf, size, &pd);
+
+ if (pd == NULL)
+ return CODEC_ERROR;
+
+ if (hdr == NULL
+ || (hdr->magic != CODEC_MAGIC
+#ifdef HAVE_RECORDING
+ && hdr->magic != CODEC_ENC_MAGIC
+#endif
+ )
+ || hdr->target_id != TARGET_ID) {
+ sim_codec_close(pd);
+ return CODEC_ERROR;
+ }
+
+ codec_size = codecbuf - codecbuf;
+
+#endif /* CONFIG_PLATFORM */
if (hdr->api_version > CODEC_API_VERSION
|| hdr->api_version < CODEC_MIN_API_VERSION) {
- logf("codec api version error");
- lc_close(handle);
+ sim_codec_close(pd);
return CODEC_ERROR;
}
-#if (CONFIG_PLATFORM & PLATFORM_NATIVE)
- codec_size = hdr->end_addr - codecbuf;
-#else
- codec_size = 0;
-#endif
-
*(hdr->api) = api;
+ cpucache_invalidate();
status = hdr->entry_point();
- lc_close(handle);
+ sim_codec_close(pd);
return status;
}
@@ -232,37 +260,36 @@
int codec_load_buf(unsigned int hid, struct codec_api *api)
{
int rc;
- void *handle;
rc = bufread(hid, CODEC_SIZE, codecbuf);
if (rc < 0) {
logf("error loading codec");
return CODEC_ERROR;
}
- handle = lc_open_from_mem(codecbuf, rc);
- if (handle == NULL)
- {
- logf("error loading codec");
- return CODEC_ERROR;
- }
-
api->discard_codec();
- return codec_load_ram(handle, api);
+ return codec_load_ram(rc, api);
}
int codec_load_file(const char *plugin, struct codec_api *api)
{
char path[MAX_PATH];
- void *handle;
+ int fd;
+ int rc;
codec_get_full_path(path, plugin);
-
- handle = lc_open(path, codecbuf, CODEC_SIZE);
-
- if (handle == NULL) {
- logf("Codec load error");
+
+ fd = open(path, O_RDONLY);
+ if (fd < 0) {
+ logf("Codec load error:%d", fd);
splashf(HZ*2, "Couldn't load codec: %s", path);
+ return fd;
+ }
+
+ rc = read(fd, &codecbuf[0], CODEC_SIZE);
+ close(fd);
+ if (rc <= 0) {
+ logf("Codec read error");
return CODEC_ERROR;
}
- return codec_load_ram(handle, api);
+ return codec_load_ram((size_t)rc, api);
}
diff --git a/apps/plugin.c b/apps/plugin.c
index 53a05bf..cc540cd 100644
--- a/apps/plugin.c
+++ b/apps/plugin.c
@@ -42,7 +42,6 @@
#include "errno.h"
#include "diacritic.h"
#include "filefuncs.h"
-#include "load_code.h"
#if CONFIG_CHARGING
#include "power.h"
@@ -76,19 +75,21 @@
#if (CONFIG_PLATFORM & PLATFORM_HOSTED)
static unsigned char pluginbuf[PLUGIN_BUFFER_SIZE];
+void *sim_plugin_load(char *plugin, void **pd);
+void sim_plugin_close(void *pd);
void sim_lcd_ex_init(unsigned long (*getpixel)(int, int));
void sim_lcd_ex_update_rect(int x, int y, int width, int height);
#else
+#define sim_plugin_close(x)
extern unsigned char pluginbuf[];
#include "bitswap.h"
#endif
/* for actual plugins only, not for codecs */
+static bool plugin_loaded = false;
static int plugin_size = 0;
static bool (*pfn_tsr_exit)(bool reenter) = NULL; /* TSR exit callback */
static char current_plugin[MAX_PATH];
-/* NULL if no plugin is loaded, otherwise the handle that lc_open() returned */
-static void *current_plugin_handle;
char *plugin_get_current_filename(void);
@@ -727,60 +728,98 @@
{
int rc, i;
struct plugin_header *hdr;
+#if (CONFIG_PLATFORM & PLATFORM_HOSTED)
+ void *pd;
+#else /* PLATFOR_NATIVE */
+ int fd;
+ ssize_t readsize;
+#if NUM_CORES > 1
+ unsigned my_core;
+#endif
+#endif /* CONFIG_PLATFORM */
#if LCD_DEPTH > 1
fb_data* old_backdrop;
#endif
- if (current_plugin_handle && pfn_tsr_exit)
- { /* if we have a resident old plugin and a callback */
+ if (pfn_tsr_exit != NULL) /* if we have a resident old plugin: */
+ {
if (pfn_tsr_exit(!strcmp(current_plugin, plugin)) == false )
{
/* not allowing another plugin to load */
return PLUGIN_OK;
}
- lc_close(current_plugin_handle);
- current_plugin_handle = pfn_tsr_exit = NULL;
+ pfn_tsr_exit = NULL;
+ plugin_loaded = false;
}
splash(0, ID2P(LANG_WAIT));
strcpy(current_plugin, plugin);
- current_plugin_handle = lc_open(plugin, pluginbuf, PLUGIN_BUFFER_SIZE);
- if (current_plugin_handle == NULL) {
+#if (CONFIG_PLATFORM & PLATFORM_HOSTED)
+ hdr = sim_plugin_load((char *)plugin, &pd);
+ if (pd == NULL) {
splashf(HZ*2, str(LANG_PLUGIN_CANT_OPEN), plugin);
return -1;
}
-
- hdr = lc_get_header(current_plugin_handle);
-
if (hdr == NULL
|| hdr->magic != PLUGIN_MAGIC
- || hdr->target_id != TARGET_ID
-#if (CONFIG_PLATFORM & PLATFORM_NATIVE)
- || hdr->load_addr != pluginbuf
- || hdr->end_addr > pluginbuf + PLUGIN_BUFFER_SIZE
-#endif
- )
- {
- lc_close(current_plugin_handle);
+ || hdr->target_id != TARGET_ID) {
+ sim_plugin_close(pd);
splash(HZ*2, str(LANG_PLUGIN_WRONG_MODEL));
return -1;
}
if (hdr->api_version > PLUGIN_API_VERSION
- || hdr->api_version < PLUGIN_MIN_API_VERSION)
- {
- lc_close(current_plugin_handle);
+ || hdr->api_version < PLUGIN_MIN_API_VERSION) {
+ sim_plugin_close(pd);
splash(HZ*2, str(LANG_PLUGIN_WRONG_VERSION));
return -1;
}
-#if (CONFIG_PLATFORM & PLATFORM_NATIVE)
- plugin_size = hdr->end_addr - pluginbuf;
#else
- plugin_size = 0;
+ fd = open(plugin, O_RDONLY);
+ if (fd < 0) {
+ splashf(HZ*2, str(LANG_PLUGIN_CANT_OPEN), plugin);
+ return fd;
+ }
+#if NUM_CORES > 1
+ /* Make sure COP cache is flushed and invalidated before loading */
+ my_core = switch_core(CURRENT_CORE ^ 1);
+ cpucache_invalidate();
+ switch_core(my_core);
+#endif
+
+ readsize = read(fd, pluginbuf, PLUGIN_BUFFER_SIZE);
+ close(fd);
+
+ if (readsize < 0) {
+ splashf(HZ*2, str(LANG_READ_FAILED), plugin);
+ return -1;
+ }
+ hdr = (struct plugin_header *)pluginbuf;
+
+ if ((unsigned)readsize <= sizeof(struct plugin_header)
+ || hdr->magic != PLUGIN_MAGIC
+ || hdr->target_id != TARGET_ID
+ || hdr->load_addr != pluginbuf
+ || hdr->end_addr > pluginbuf + PLUGIN_BUFFER_SIZE) {
+ splash(HZ*2, str(LANG_PLUGIN_WRONG_MODEL));
+ return -1;
+ }
+ if (hdr->api_version > PLUGIN_API_VERSION
+ || hdr->api_version < PLUGIN_MIN_API_VERSION) {
+ splash(HZ*2, str(LANG_PLUGIN_WRONG_VERSION));
+ return -1;
+ }
+ plugin_size = hdr->end_addr - pluginbuf;
+
+ /* zero out bss area only, above guards end of pluginbuf */
+ if (plugin_size > readsize)
+ memset(pluginbuf + readsize, 0, plugin_size - readsize);
#endif
*(hdr->api) = &rockbox_api;
+ plugin_loaded = true;
+
#if defined HAVE_LCD_BITMAP && LCD_DEPTH > 1
old_backdrop = lcd_get_backdrop();
@@ -795,6 +834,8 @@
FOR_NB_SCREENS(i)
viewportmanager_theme_enable(i, false, NULL);
+
+ cpucache_invalidate();
#ifdef HAVE_TOUCHSCREEN
touchscreen_set_mode(TOUCHSCREEN_BUTTON);
@@ -806,12 +847,6 @@
rc = hdr->entry_point(parameter);
- if (!pfn_tsr_exit)
- { /* close handle if plugin is no tsr one */
- lc_close(current_plugin_handle);
- current_plugin_handle = NULL;
- }
-
/* Go back to the global setting in case the plugin changed it */
#ifdef HAVE_TOUCHSCREEN
touchscreen_set_mode(global_settings.touch_mode);
@@ -852,8 +887,11 @@
FOR_NB_SCREENS(i)
viewportmanager_theme_undo(i, false);
+ if (pfn_tsr_exit == NULL)
+ plugin_loaded = false;
+
#ifdef HAVE_PLUGIN_CHECK_OPEN_CLOSE
- if(open_files != 0 && !current_plugin_handle)
+ if(open_files != 0 && !plugin_loaded)
{
int fd;
logf("Plugin '%s' leaks file handles", plugin);
@@ -871,6 +909,8 @@
}
#endif
+ sim_plugin_close(pd);
+
if (rc == PLUGIN_ERROR)
splash(HZ*2, str(LANG_PLUGIN_ERROR));
@@ -883,7 +923,7 @@
{
int buffer_pos;
- if (current_plugin_handle)
+ if (plugin_loaded)
{
if (plugin_size >= PLUGIN_BUFFER_SIZE)
return NULL;
diff --git a/apps/plugins/plugin_crt0.c b/apps/plugins/plugin_crt0.c
index e34124c..536ecca 100644
--- a/apps/plugins/plugin_crt0.c
+++ b/apps/plugins/plugin_crt0.c
@@ -32,8 +32,6 @@
#define EXIT_MAGIC 0x0CDEBABE
extern enum plugin_status plugin_start(const void*);
-extern unsigned char plugin_bss_start[];
-extern unsigned char plugin_end_addr[];
static jmp_buf __exit_env;
/* only 1 atexit handler for now, chain in the exit handler if you need more */
@@ -63,10 +61,6 @@
int exit_ret;
enum plugin_status ret;
- /* zero out the bss section */
-#if (CONFIG_PLATFORM & PLATFORM_NATIVE)
- rb->memset(plugin_bss_start, 0, plugin_end_addr - plugin_bss_start);
-#endif
/* we come back here if exit() was called or the plugin returned normally */
exit_ret = setjmp(__exit_env);
if (exit_ret == 0)
diff --git a/firmware/SOURCES b/firmware/SOURCES
index f83b789..e6157fa 100644
--- a/firmware/SOURCES
+++ b/firmware/SOURCES
@@ -3,7 +3,6 @@
backlight.c
buffer.c
general.c
-load_code.c
powermgmt.c
system.c
usb.c
diff --git a/firmware/export/load_code.h b/firmware/export/load_code.h
deleted file mode 100644
index f4fa8f9..0000000
--- a/firmware/export/load_code.h
+++ /dev/null
@@ -1,55 +0,0 @@
-/***************************************************************************
- * __________ __ ___.
- * Open \______ \ ____ ____ | | _\_ |__ _______ ___
- * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
- * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
- * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
- * \/ \/ \/ \/ \/
- * $Id$
- *
- * Copyright (C) 2010 by Thomas Martitz
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
- * KIND, either express or implied.
- *
- ****************************************************************************/
-
-
-#include "config.h"
-
-#if (CONFIG_PLATFORM & PLATFORM_NATIVE)
-#include "system.h"
-
-extern void *lc_open(const char *filename, char *buf, size_t buf_size);
-/* header is always at the beginning of the blob, and handle actually points
- * to the start of the blob */
-static inline char *lc_open_from_mem(void* addr, size_t blob_size)
-{
- (void)blob_size;
- cpucache_invalidate();
- return addr;
-}
-static inline void *lc_get_header(void *handle) { return handle; }
-/* no need to do anything */
-static inline void lc_close(void *handle) { (void)handle; }
-
-#elif (CONFIG_PLATFORM & PLATFORM_HOSTED)
-
-/* don't call these directly for loading code
- * they're to be wrapped by platform specific functions */
-extern void *_lc_open(const char *filename, char *buf, size_t buf_size);
-extern void *_lc_get_header(void *handle);
-extern void _lc_close(void *handle);
-
-extern void *lc_open(const char *filename, char *buf, size_t buf_size);
-/* not possiible on hosted platforms */
-extern void *lc_open_from_mem(void *addr, size_t blob_size);
-extern void *lc_get_header(void *handle);
-extern void lc_close(void *handle);
-extern const char* lc_last_error(void);
-#endif
diff --git a/firmware/load_code.c b/firmware/load_code.c
deleted file mode 100644
index 9e8e71f..0000000
--- a/firmware/load_code.c
+++ /dev/null
@@ -1,165 +0,0 @@
-/***************************************************************************
- * __________ __ ___.
- * Open \______ \ ____ ____ | | _\_ |__ _______ ___
- * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
- * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
- * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
- * \/ \/ \/ \/ \/
- * $Id$
- *
- * Copyright (C) 2010 by Thomas Martitz
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
- * KIND, either express or implied.
- *
- ****************************************************************************/
-
-#include "config.h"
-#include "system.h"
-#include "file.h"
-#include "debug.h"
-#include "load_code.h"
-
-#if (CONFIG_PLATFORM & PLATFORM_NATIVE)
-/* load binary blob from disk to memory, returning a handle */
-void * lc_open(const char *filename, char *buf, size_t buf_size)
-{
- int fd = open(filename, O_RDONLY);
- ssize_t read_size;
-
- if (fd < 0)
- {
- DEBUGF("Could not open file");
- return NULL;
- }
-
-#if NUM_CORES > 1
- /* Make sure COP cache is flushed and invalidated before loading */
- {
- int my_core = switch_core(CURRENT_CORE ^ 1);
- cpucache_invalidate();
- switch_core(my_core);
- }
-#endif
-
- read_size = read(fd, buf, buf_size);
- close(fd);
- cpucache_invalidate();
-
- if (read_size < 0)
- {
- DEBUGF("Could not read from file");
- return NULL;
- }
- return buf;
-}
-
-#elif (CONFIG_PLATFORM & PLATFORM_HOSTED)
-/* libdl wrappers */
-
-
-#ifdef WIN32
-/* win32 */
-#include <windows.h>
-#define dlopen(_x_, _y_) LoadLibraryW(_x_)
-#define dlsym(_x_, _y_) (void *)GetProcAddress(_x_, _y_)
-#define dlclose(_x_) FreeLibrary(_x_)
-static inline char *_dlerror(void)
-{
- static char err_buf[64];
- FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM, NULL, GetLastError(), 0,
- err_buf, sizeof(err_buf), NULL);
- return err_buf;
-}
-#define dlerror _dlerror
-#else
-/* unix */
-#include <dlfcn.h>
-#define O_BINARY 0
-#endif
-#include <stdio.h>
-#include "rbpaths.h"
-#include "general.h"
-
-void * _lc_open(const char *filename, char *buf, size_t buf_size)
-{
- (void)buf;
- (void)buf_size;
- void* dl_handle = dlopen(filename, RTLD_NOW);
- return dl_handle;
-}
-
-void *lc_open_from_mem(void *addr, size_t blob_size)
-{
- int fd, i;
- char temp_filename[MAX_PATH];
-
- /* We have to create the dynamic link library file from ram so we
- can simulate the codec loading. With voice and crossfade,
- multiple codecs may be loaded at the same time, so we need
- to find an unused filename */
- for (i = 0; i < 10; i++)
- {
-#if (CONFIG_PLATFORM & PLATFORM_ANDROID)
- /* we need that path fixed, since get_user_file_path()
- * gives us the folder on the sdcard where we cannot load libraries
- * from (no exec permissions)
- */
- snprintf(temp_filename, sizeof(temp_filename),
- "/data/data/org.rockbox/app_rockbox/libtemp_binary_%d.so", i);
-#else
- char name[MAX_PATH];
- const char *_name = get_user_file_path(ROCKBOX_DIR, NEED_WRITE, name, sizeof(name));
- snprintf(temp_filename, sizeof(temp_filename),
- "%slibtemp_binary_%d.dll", _name, i);
-#endif
- fd = open(temp_filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0766);
- if (fd >= 0)
- break; /* Created a file ok */
- }
-
- DEBUGF("Creating %s\n", temp_filename);
- if (fd < 0)
- {
- DEBUGF("open failed\n");
- return NULL;
- }
-
- if (write(fd, addr, blob_size) < (ssize_t)blob_size)
- {
- DEBUGF("Write failed\n");
- close(fd);
- remove(temp_filename);
- return NULL;
- }
-
- close(fd);
- return lc_open(temp_filename, NULL, 0);
-}
-
-
-void *_lc_get_header(void *handle)
-{
- char *ret = dlsym(handle, "__header");
- if (ret == NULL)
- ret = dlsym(handle, "___header");
-
- return ret;
-}
-
-void _lc_close(void *handle)
-{
- if (handle)
- dlclose(handle);
-}
-
-const char *lc_last_error(void)
-{
- return dlerror();
-}
-#endif
diff --git a/uisimulator/common/io.c b/uisimulator/common/io.c
index c8d6a8a..4c0fa33 100644
--- a/uisimulator/common/io.c
+++ b/uisimulator/common/io.c
@@ -58,7 +58,6 @@
#include "debug.h"
#include "ata.h" /* for IF_MV2 et al. */
#include "rbpaths.h"
-#include "load_code.h"
/* keep this in sync with file.h! */
#undef MAX_PATH /* this avoids problems when building simulator */
@@ -531,28 +530,116 @@
#include <dlfcn.h>
#endif
-
-void *lc_open(const char *filename, char *buf, size_t buf_size)
+void *sim_codec_load_ram(char* codecptr, int size, void **pd)
{
- const char *sim_path = get_sim_pathname(filename);
- void *handle = _lc_open((const char*)UTF8_TO_OS(sim_path), buf, buf_size);
+ void *hdr;
+ char path[MAX_PATH];
+ int fd;
+ int codec_count;
+#ifdef WIN32
+ char buf[MAX_PATH];
+#endif
- if (handle == NULL)
+ *pd = NULL;
+
+ /* We have to create the dynamic link library file from ram so we
+ can simulate the codec loading. With voice and crossfade,
+ multiple codecs may be loaded at the same time, so we need
+ to find an unused filename */
+ for (codec_count = 0; codec_count < 10; codec_count++)
{
- DEBUGF("failed to load %s\n", filename);
- DEBUGF("lc_open(%s): %s\n", filename, lc_last_error());
+#if (CONFIG_PLATFORM & PLATFORM_ANDROID)
+ /* we need that path fixed, since get_user_file_path()
+ * gives us the folder on the sdcard where we cannot load libraries
+ * from (no exec permissions)
+ */
+ snprintf(path, sizeof(path),
+ "/data/data/org.rockbox/app_rockbox/libtemp_codec_%d.so",
+ codec_count);
+#else
+ char name[MAX_PATH];
+ const char *_name = get_user_file_path(ROCKBOX_DIR, 0, name, sizeof(name));
+ snprintf(path, sizeof(path), "%s/_temp_codec%d.dll", get_sim_pathname(_name), codec_count);
+#endif
+ fd = OPEN(path, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, S_IRWXU);
+ if (fd >= 0)
+ break; /* Created a file ok */
}
- return handle;
+ if (fd < 0)
+ {
+ DEBUGF("failed to open for write: %s\n", path);
+ return NULL;
+ }
+
+ if (write(fd, codecptr, size) != size)
+ {
+ DEBUGF("write failed");
+ return NULL;
+ }
+ close(fd);
+
+ /* Now load the library. */
+ *pd = dlopen(path, RTLD_NOW);
+ if (*pd == NULL)
+ {
+ DEBUGF("failed to load %s\n", path);
+#ifdef WIN32
+ FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM, NULL, GetLastError(), 0,
+ buf, sizeof buf, NULL);
+ DEBUGF("dlopen(%s): %s\n", path, buf);
+#else
+ DEBUGF("dlopen(%s): %s\n", path, dlerror());
+#endif
+ return NULL;
+ }
+
+ hdr = dlsym(*pd, "__header");
+ if (!hdr)
+ hdr = dlsym(*pd, "___header");
+
+ return hdr; /* maybe NULL if symbol not present */
}
-void *lc_get_header(void *handle)
+void sim_codec_close(void *pd)
{
- return _lc_get_header(handle);
+ dlclose(pd);
}
-void lc_close(void *handle)
+void *sim_plugin_load(char *plugin, void **pd)
{
- _lc_close(handle);
+ void *hdr;
+ char path[MAX_PATH];
+#ifdef WIN32
+ char buf[MAX_PATH];
+#endif
+
+ snprintf(path, sizeof(path), "%s", get_sim_pathname(plugin));
+
+ *pd = NULL;
+
+ *pd = dlopen(path, RTLD_NOW);
+ if (*pd == NULL) {
+ DEBUGF("failed to load %s\n", plugin);
+#ifdef WIN32
+ FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM, NULL, GetLastError(), 0,
+ buf, sizeof(buf), NULL);
+ DEBUGF("dlopen(%s): %s\n", path, buf);
+#else
+ DEBUGF("dlopen(%s): %s\n", path, dlerror());
+#endif
+ return NULL;
+ }
+
+ hdr = dlsym(*pd, "__header");
+ if (!hdr)
+ hdr = dlsym(*pd, "___header");
+
+ return hdr; /* maybe NULL if symbol not present */
+}
+
+void sim_plugin_close(void *pd)
+{
+ dlclose(pd);
}
#ifdef WIN32