luckfox-pico-sdk/sysdrv/source/mcu/rt-thread/components/libc/libdl/dlopen.c
luckfox-eng29 8f34c2760d project:build.sh: Added fastboot support; custom modifications to U-Boot and kernel implemented using patches.
project:cfg:BoardConfig_IPC: Added fastboot BoardConfig file and firmware post-scripts, distinguishing between
the BoardConfigs for Luckfox Pico Pro and Luckfox Pico Max. project:app: Added fastboot_client and rk_smart_door
for quick boot applications; updated rkipc app to adapt to the latest media library. media:samples: Added more
usage examples. media:rockit: Fixed bugs; removed support for retrieving data frames from VPSS. media:isp:
Updated rkaiq library and related tools to support connection to RKISP_Tuner. sysdrv:Makefile: Added support for
compiling drv_ko on Luckfox Pico Ultra W using Ubuntu; added support for custom root filesystem.
sysdrv:tools:board: Updated Buildroot optional mirror sources, updated some software versions, and stored device
tree files and configuration files that undergo multiple modifications for U-Boot and kernel separately.
sysdrv:source:mcu: Used RISC-V MCU SDK with RT-Thread system, mainly for initializing camera AE during quick
boot. sysdrv:source:uboot: Added support for fastboot; added high baud rate DDR bin for serial firmware upgrades.
sysdrv:source:kernel: Upgraded to version 5.10.160; increased NPU frequency for RV1106G3; added support for
fastboot.

Signed-off-by: luckfox-eng29 <eng29@luckfox.com>
2024-10-14 09:47:04 +08:00

65 lines
1.3 KiB
C

/*
* Copyright (c) 2006-2018, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2010-11-17 yi.qiu first version
*/
#include <rtthread.h>
#include <rtm.h>
#include <string.h>
#include "dlmodule.h"
#define MODULE_ROOT_DIR "/modules"
void* dlopen(const char *filename, int flags)
{
struct rt_dlmodule *module;
char *fullpath;
const char*def_path = MODULE_ROOT_DIR;
/* check parameters */
RT_ASSERT(filename != RT_NULL);
if (filename[0] != '/') /* it's a relative path, prefix with MODULE_ROOT_DIR */
{
fullpath = rt_malloc(strlen(def_path) + strlen(filename) + 2);
/* join path and file name */
rt_snprintf(fullpath, strlen(def_path) + strlen(filename) + 2,
"%s/%s", def_path, filename);
}
else
{
fullpath = (char*)filename; /* absolute path, use it directly */
}
rt_enter_critical();
/* find in module list */
module = dlmodule_find(fullpath);
if(module != RT_NULL)
{
rt_exit_critical();
module->nref++;
}
else
{
rt_exit_critical();
module = dlmodule_load(fullpath);
}
if(fullpath != filename)
{
rt_free(fullpath);
}
return (void*)module;
}
RTM_EXPORT(dlopen);