Hi All, Thanks for the overhelming responses. I was able to remove the problem of Unknown symbols by linking the proper libraries. Now the problem got reduced to the following messages.
# insmod brcmstfb.ko brcmstfb: Unknown symbol printf brcmstfb: Unknown symbol malloc brcmstfb: Unknown symbol free insmod: cannot insert `brcmstfb.ko': Unknown symbol in module (2): No such file or directory # for the above problem i had tried to link "libgcc.a " but those symbols are also undefined in it also. RECAP: While running the cross compiled directFB example on MIPS chip,* We tried to install the framebuffer driver(command given above) after creating the node fb0. APPROACH: Actually the code of frambuffer driver consists of usual kernel framebuffer code and properitiary graphics lib code. The properitiary graphics lib code is using malloc,print and free from < stdlib.h> and that is why those symbols are coming undefined. Could anybody help in this regard? Thanks in advance. kaka ---------- Forwarded message ---------- From: kaka <[EMAIL PROTECTED]> Date: Oct 12, 2007 6:33 PM Subject: Error opening framebuffer device/Unknown symbol register_framebuffer To: directfb-users@directfb.org, [EMAIL PROTECTED] . > *Hi All,* > > *While running the cross compiled directFB example on MIPS chip,* > > * > > > We tried to install the framebuffer driver(command given at the bottom) and > we have already created the node fb0.* > > *We are getting the following error, * > > *Can anybody help in this regard ?* > > *Thanks in Advance.* > > # ../../cross_directfb/simple_mips > > =======================| DirectFB 1.0.0 |======================= > (c) 2001-2007 The DirectFB Organization (directfb.org) > (c) 2000-2004 Convergence (integrated media) GmbH > ------------------------------------------------------------ > > (*) DirectFB/Core: Single Application Core. (2007-10-05 14:17) > (!) Direct/Util: opening '/dev/fb0' failed > --> No such device or address > (!) DirectFB/FBDev: Error opening framebuffer device! > (!) DirectFB/FBDev: Use 'fbdev' option or set FRAMEBUFFER environment > variable. > (!) DirectFB/Core: Could not initialize 'system' core! > --> Initialization error!simple.c <96>: > (#) DirectFBError [DirectFBCreate (&dfb)]: Initialization error! > # > > *While running the following command in MIPS chip, we are getting the > following error.* > > # insmod brcmstfb.ko > brcmstfb: Unknown symbol unregister_framebuffer > brcmstfb: Unknown symbol printf > brcmstfb: Unknown symbol malloc > brcmstfb: Unknown symbol fb_find_mode > brcmstfb: Unknown symbol fb_dealloc_cmap > brcmstfb: Unknown symbol fb_alloc_cmap > brcmstfb: Unknown symbol framebuffer_release > brcmstfb: Unknown symbol free > insmod: cannot insert `brcmstfb.ko': Unknown symbol in module (2): No such > file or directory > # > # > > > > -- Thanks & Regards, kaka -- Thanks & Regards, kaka
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