Nios II: mp3_player (error)

[Altera_Forum]

Need help because im just a newbie in FPGA programming.. 

 I downloaded the mp3_player demo for NIOS II, and tried to build it (using NIOS II Command Shell). Unfortunately I found an error :   collect2: ld returned 1 exit status make: *** [mp3_player.elf] Error 1   I dont have any idea what this error is. I tried to run the flash files of this application and its working... But I need to build this one..   Please help me, thanks in advance....

[Altera_Forum]

what messages do you have before that?

[Altera_Forum]

thanks for reply 

 here's the whole message after i build them:   (the full build messages is on the attachment)   https://www.alteraforum.com/forum/attachment.php?attachmentid=1555      Here's the 1st half of the build message     $ make all Info: Building ../../bsp/hal_default make: Circular src/mad/sf_table.dat <- mp3_player.elf dependency dropped. make: Circular src/mad/qc_table.dat <- mp3_player.elf dependency dropped. make: Circular src/mad/rq_table.dat <- mp3_player.elf dependency dropped. make: Circular src/mad/imdct_s.dat <- mp3_player.elf dependency dropped. make: Circular src/mad/D.dat <- mp3_player.elf dependency dropped. Info: Linking mp3_player.elf nios2-elf-g++ -T'../../bsp/hal_default/linker.x' -msys-crt0='../../bsp/hal_default/obj/HAL/src/crt0. o' -msys-lib=hal_bsp -L../../bsp/hal_default -Wl,-Map=mp3_player.map -O3 -g -Wall -mno-hw-div -mhw-mul -mno-hw-mulx -o mp3_player.elf obj/src/.metadata/.plugins/org.eclipse.cdt.make.core/specs. o obj/src/alt_touchscreen/alt_touchscreen.o obj/src/audio/audio_ctrl.o obj/src/fonts/arial_24.o obj/ src/fonts/arial_28.o obj/src/fonts/arialbold_28.o obj/src/fonts/arialroundedmtbold_28.o obj/src/font s/arialroundedmtbold_58.o obj/src/gimp_bmp/gimp_bmp.o obj/src/graphics_lib/simple_graphics.o obj/src /graphics_lib/simple_text.o obj/src/gui.o obj/src/gui_old.o obj/src/i2c/i2c_ctrl.o obj/src/images/al tera_big.o obj/src/images/altera_small.o obj/src/images/edit_not_pressed.o obj/src/images/edit_press ed.o obj/src/images/pause_not_pressed.o obj/src/images/pause_pressed.o obj/src/images/play_not_press ed.o obj/src/images/play_pressed.o obj/src/images/prog_bar_empty_center_10x27.o obj/src/images/prog_ bar_empty_left_10x27.o obj/src/images/prog_bar_empty_right_10x27.o obj/src/images/prog_bar_on_10x27. o obj/src/images/prog_bar_on_left_10x27.o obj/src/images/prog_bar_on_left_right_10x27.o obj/src/imag es/prog_bar_on_right_10x27.o obj/src/images/random_not_pressed.o obj/src/images/random_pressed.o obj /src/images/repeat_not_pressed.o obj/src/images/repeat_pressed.o obj/src/images/skip_back_not_presse d.o obj/src/images/skip_back_pressed.o obj/src/images/skip_fwd_not_pressed.o obj/src/images/skip_fwd _pressed.o obj/src/mad/audio.o obj/src/mad/bit.o obj/src/mad/decoder.o obj/src/mad/fixed.o obj/src/m ad/frame.o obj/src/mad/huffman.o obj/src/mad/layer12.o obj/src/mad/layer3.o obj/src/mad/stream.o obj /src/mad/synth.o obj/src/mad/timer.o obj/src/mad/version.o obj/src/main.o obj/src/player_lib.o obj/s rc/touchscreen.o -lm obj/src/gui_old.o(.text+0x0): In function `CopyImageToBuffer': src/gui_old.c:43: multiple definition of `CopyImageToBuffer' obj/src/gui.o(.text+0x0):src/gui.c:44: first defined here obj/src/gui_old.o(.text+0x84): In function `CopyImageToCoords': src/gui_old.c:66: multiple definition of `CopyImageToCoords' obj/src/gui.o(.text+0x84):src/gui.c:67: first defined here obj/src/gui_old.o(.text+0x130): In function `CopyBlockToNextFrame': src/gui_old.c:89: multiple definition of `CopyBlockToNextFrame' obj/src/gui.o(.text+0x130):src/gui.c:90: first defined here obj/src/gui_old.o(.text+0x1f4): In function `DisplaySlider': src/gui_old.c:125: multiple definition of `DisplaySlider' obj/src/gui.o(.text+0x1f4):src/gui.c:126: first defined here obj/src/gui_old.o(.text+0x684): In function `load_gimp_graphic_to_pointer': src/gui_old.c:218: multiple definition of `load_gimp_graphic_to_pointer' obj/src/gui.o(.text+0x684):src/gui.c:219: first defined here obj/src/gui_old.o(.text+0x718): In function `PrerenderButton': src/gui_old.c:247: multiple definition of `PrerenderButton' obj/src/gui.o(.text+0x718):src/gui.c:248: first defined here obj/src/gui_old.o(.text+0x83c): In function `PrerenderSlider': src/gui_old.c:299: multiple definition of `PrerenderSlider' $ $ make all obj/src/gui_old.o(.text+0xad8): In function `DisplayGimpImage': src/gui_old.c:375: multiple definition of `DisplayGimpImage' obj/src/gui.o(.text+0xad8):src/gui.c:376: first defined here obj/src/gui_old.o(.text+0xbc8): In function `DisplaySliders': src/gui_old.c:435: multiple definition of `DisplaySliders' obj/src/gui.o(.text+0xf4c):src/gui.c:429: first defined here obj/src/gui_old.o(.text+0xcac): In function `PrerenderButtons': src/gui_old.c:467: multiple definition of `PrerenderButtons' obj/src/gui.o(.text+0x1030):src/gui.c:461: first defined here obj/src/gui_old.o(.text+0xe84): In function `DrawGradBox': src/gui_old.c:610: multiple definition of `DrawGradBox' obj/src/gui.o(.text+0x1208):src/gui.c:604: first defined here obj/src/gui_old.o(.text+0x18c4): In function `InverseRoundCornerPoints': src/gui_old.c:825: multiple definition of `InverseRoundCornerPoints' obj/src/gui.o(.text+0x1c48):src/gui.c:819: first defined here obj/src/gui_old.o(.text+0x1b3c): In function `FillInverseRoundCorners': src/gui_old.c:853: multiple definition of `FillInverseRoundCorners' obj/src/gui.o(.text+0x1ec0):src/gui.c:847: first defined here obj/src/gui_old.o(.text+0x1c80): In function `DrawRoundCornerGradBox': src/gui_old.c:933: multiple definition of `DrawRoundCornerGradBox' obj/src/gui.o(.text+0x2004):src/gui.c:927: first defined here obj/src/gui_old.o(.text+0x1d3c): In function `DrawWindow': src/gui_old.c:556: multiple definition of `DrawWindow' obj/src/gui.o(.text+0x20c0):src/gui.c:550: first defined here obj/src/gui_old.o(.text+0x1eb0): In function `CoordsAreInArea': src/gui_old.c:960: multiple definition of `CoordsAreInArea' obj/src/gui.o(.text+0x2234):src/gui.c:954: first defined here obj/src/gui_old.o(.text+0x1ee4): In function `CoordsAreOnSlider': src/gui_old.c:989: multiple definition of `CoordsAreOnSlider' obj/src/gui.o(.text+0x2268):src/gui.c:983: first defined here obj/src/gui_old.o(.text+0x1f1c): In function `CoordsAreOnButton': src/gui_old.c:1021: multiple definition of `CoordsAreOnButton' obj/src/gui.o(.text+0x22a0):src/gui.c:1015: first defined here obj/src/gui_old.o(.text+0x1f54): In function `UpdateSlider': src/gui_old.c:1052: multiple definition of `UpdateSlider' obj/src/gui.o(.text+0x22d8):src/gui.c:1046: first defined here obj/src/gui_old.o(.text+0x204c): In function `DisplayButton': src/gui_old.c:1106: multiple definition of `DisplayButton' obj/src/gui.o(.text+0xbc8):src/gui.c:1100: first defined here obj/src/gui_old.o(.text+0x2134): In function `UpdateButton': src/gui_old.c:1148: multiple definition of `UpdateButton' obj/src/gui.o(.text+0x23d0):src/gui.c:1142: first defined here obj/src/gui_old.o(.text+0x2470): In function `UpdateMainButtons': src/gui_old.c:1241: multiple definition of `UpdateMainButtons' obj/src/gui.o(.text+0x270c):src/gui.c:1235: first defined here obj/src/gui_old.o(.text+0x2598): In function `vid_print_string_alpha_max_x': src/gui_old.c:1301: multiple definition of `vid_print_string_alpha_max_x' obj/src/gui.o(.text+0x2834):src/gui.c:1295: first defined here obj/src/gui_old.o(.text+0x2664): In function `vid_print_string_alpha_prerendered': src/gui_old.c:1339: multiple definition of `vid_print_string_alpha_prerendered' obj/src/gui.o(.text+0x2900):src/gui.c:1333: first defined here obj/src/gui_old.o(.text+0x2854): In function `vid_print_string_alpha_prerendered_max_x': src/gui_old.c:1401: multiple definition of `vid_print_string_alpha_prerendered_max_x' obj/src/gui.o(.text+0x2af0):src/gui.c:1395: first defined here obj/src/gui_old.o(.text+0x2914): In function `PrerenderFont': src/gui_old.c:1457: multiple definition of `PrerenderFont' obj/src/gui.o(.text+0x2bb0):src/gui.c:1451: first defined here obj/src/gui_old.o(.text+0x2a48): In function `PrerenderFonts': src/gui_old.c:1438: multiple definition of `PrerenderFonts' obj/src/gui.o(.text+0x2ce4):src/gui.c:1432: first defined here obj/src/gui_old.o(.text+0x2eec): In function `DisplayPlayTime': src/gui_old.c:1501: multiple definition of `DisplayPlayTime' obj/src/gui.o(.text+0x3188):src/gui.c:1495: first defined here

[Altera_Forum]

2nd half of the build message 

  /cygdrive/d/altera/80/nios2eds/bin/nios2-gnutools/H-i686-pc-cygwin/bin/../lib/gcc/nios2-elf/3.4.6/.. /../../../nios2-elf/bin/ld: Warning: size of symbol `DisplayPlayTime' changed from 612 in obj/src/gu i.o to 736 in obj/src/gui_old.o obj/src/gui_old.o(.text+0x31cc): In function `CoordsAreWithinBox': src/gui_old.c:1576: multiple definition of `CoordsAreWithinBox' obj/src/gui.o(.text+0x33ec):src/gui.c:1562: first defined here obj/src/gui_old.o(.text+0x3200): In function `UpdatePlayTime': src/gui_old.c:1603: multiple definition of `UpdatePlayTime' obj/src/gui.o(.text+0x3420):src/gui.c:1589: first defined here obj/src/gui_old.o(.text+0x32e8): In function `CoordsAreOnPlaylist': src/gui_old.c:1637: multiple definition of `CoordsAreOnPlaylist' obj/src/gui.o(.text+0x3508):src/gui.c:1623: first defined here obj/src/gui_old.o(.text+0x3348): In function `CoordsAreOnScrollBulb': src/gui_old.c:1671: multiple definition of `CoordsAreOnScrollBulb' obj/src/gui.o(.text+0x3568):src/gui.c:1657: first defined here obj/src/gui_old.o(.text+0x339c): In function `CoordsAreOnScroll': src/gui_old.c:1699: multiple definition of `CoordsAreOnScroll' obj/src/gui.o(.text+0x35bc):src/gui.c:1685: first defined here obj/src/gui_old.o(.text+0x33dc): In function `CalculateScrollBulbCoords': src/gui_old.c:1729: multiple definition of `CalculateScrollBulbCoords' obj/src/gui.o(.text+0x35fc):src/gui.c:1715: first defined here obj/src/gui_old.o(.text+0x3464): In function `DisplaySimpleVertScroll': src/gui_old.c:1773: multiple definition of `DisplaySimpleVertScroll' obj/src/gui.o(.text+0x3684):src/gui.c:1759: first defined here obj/src/gui_old.o(.text+0x364c): In function `SetTotalScrollItems': src/gui_old.c:1938: multiple definition of `SetTotalScrollItems' obj/src/gui.o(.text+0x386c):src/gui.c:1924: first defined here obj/src/gui_old.o(.text+0x3738): In function `SetCurrentScrollIndex': src/gui_old.c:1960: multiple definition of `SetCurrentScrollIndex' obj/src/gui.o(.text+0x3958):src/gui.c:1946: first defined here obj/src/gui_old.o(.text+0x37c0): In function `InitializePlaylistGUI': src/gui_old.c:1830: multiple definition of `InitializePlaylistGUI' obj/src/gui.o(.text+0x39e0):src/gui.c:1816: first defined here obj/src/gui_old.o(.text+0x3aa4): In function `SetReferenceScrollIndex': src/gui_old.c:1974: multiple definition of `SetReferenceScrollIndex' obj/src/gui.o(.text+0x3cc4):src/gui.c:1960: first defined here obj/src/gui_old.o(.text+0x3b30): In function `ScrollPlaylistToIndex': src/gui_old.c:1990: multiple definition of `ScrollPlaylistToIndex' obj/src/gui.o(.text+0x3d50):src/gui.c:1976: first defined here obj/src/gui_old.o(.text+0x3b50): In function `CalculateScrollIndex': src/gui_old.c:2008: multiple definition of `CalculateScrollIndex' obj/src/gui.o(.text+0x3d70):src/gui.c:1994: first defined here obj/src/gui_old.o(.text+0x3c00): In function `UpdatePlaylistScroll': src/gui_old.c:2042: multiple definition of `UpdatePlaylistScroll' obj/src/gui.o(.text+0x3e20):src/gui.c:2028: first defined here obj/src/gui_old.o(.text+0x3e48): In function `DisplayPlaylist': src/gui_old.c:2118: multiple definition of `DisplayPlaylist' obj/src/gui.o(.text+0x4068):src/gui.c:2104: first defined here /cygdrive/d/altera/80/nios2eds/bin/nios2-gnutools/H-i686-pc-cygwin/bin/../lib/gcc/nios2-elf/3.4.6/.. /../../../nios2-elf/bin/ld: Warning: size of symbol `DisplayPlaylist' changed from 592 in obj/src/gu i.o to 744 in obj/src/gui_old.o obj/src/gui_old.o(.text+0x4130): In function `GetPointerToRelativePlaylistNode': src/gui_old.c:2211: multiple definition of `GetPointerToRelativePlaylistNode' obj/src/gui.o(.text+0x42b8):src/gui.c:2187: first defined here obj/src/gui_old.o(.text+0x4248): In function `UpdatePlaylist': src/gui_old.c:2302: multiple definition of `UpdatePlaylist' obj/src/gui.o(.text+0x42d4):src/gui.c:2211: first defined here obj/src/gui_old.o(.text+0x43b4): In function `InitializeNowPlayingGUI': src/gui_old.c:2377: multiple definition of `InitializeNowPlayingGUI' obj/src/gui.o(.text+0x4440):src/gui.c:2286: first defined here obj/src/gui_old.o(.text+0x4530): In function `DisplayNowPlayingElements': src/gui_old.c:2413: multiple definition of `DisplayNowPlayingElements' obj/src/gui.o(.text+0x45bc):src/gui.c:2322: first defined here obj/src/gui_old.o(.text+0x46d0): In function `DisplayNowPlaying': src/gui_old.c:2452: multiple definition of `DisplayNowPlaying' obj/src/gui.o(.text+0x475c):src/gui.c:2361: first defined here /cygdrive/d/altera/80/nios2eds/bin/nios2-gnutools/H-i686-pc-cygwin/bin/../lib/gcc/nios2-elf/3.4.6/.. /../../../nios2-elf/bin/ld: Warning: size of symbol `DisplayNowPlaying' changed from 616 in obj/src/ gui.o to 624 in obj/src/gui_old.o obj/src/gui_old.o(.text+0x4940): In function `UpdateNowPlayingScroll': src/gui_old.c:2505: multiple definition of `UpdateNowPlayingScroll' obj/src/gui.o(.text+0x49c4):src/gui.c:2413: first defined here obj/src/gui_old.o(.text+0x4a20): In function `UpdateNowPlayingStrings': src/gui_old.c:2523: multiple definition of `UpdateNowPlayingStrings' obj/src/gui.o(.text+0x4aa4):src/gui.c:2431: first defined here obj/src/gui_old.o(.text+0x4cd0): In function `UpdateNowPlaying': src/gui_old.c:2579: multiple definition of `UpdateNowPlaying' obj/src/gui.o(.text+0x4d54):src/gui.c:2487: first defined here obj/src/gui_old.o(.text+0x4ddc): In function `DisplayStatusMessage': src/gui_old.c:2604: multiple definition of `DisplayStatusMessage' obj/src/gui.o(.text+0x4e60):src/gui.c:2512: first defined here obj/src/gui_old.o(.text+0x4ec0): In function `ClearNowPlayingWindow': src/gui_old.c:2637: multiple definition of `ClearNowPlayingWindow' obj/src/gui.o(.text+0x4f44):src/gui.c:2545: first defined here obj/src/gui_old.o(.text+0x4f44): In function `DrawInitialScreenMain': src/gui_old.c:2659: multiple definition of `DrawInitialScreenMain' obj/src/gui.o(.text+0x55d0):src/gui.c:2714: first defined here obj/src/gui_old.o(.text+0x55c0): In function `UpdateGUIMain': src/gui_old.c:2752: multiple definition of `UpdateGUIMain' obj/src/gui.o(.text+0x4fc8):src/gui.c:2567: first defined here /cygdrive/d/altera/80/nios2eds/bin/nios2-gnutools/H-i686-pc-cygwin/bin/../lib/gcc/nios2-elf/3.4.6/.. /../../../nios2-elf/bin/ld: Warning: size of symbol `UpdateGUIMain' changed from 1544 in obj/src/gui .o to 1556 in obj/src/gui_old.o collect2: ld returned 1 exit status make: *** Error 1

[Altera_Forum]

It looks like you have two files in the project that conflict and define the same functions: gui.c and gui_old.c 

You should remove one of them from the project, or see in those two file if there are some# ifdefs that you could use to prevent one of the files to define any function.

[Altera_Forum]

oh wow! its now working... thanks to you Mr. Daixiwen for great and fast reply... :)