[Buildroot] grub2 failure with gcc-4.9

Thierry Bultel tbultel at free.fr
Thu Feb 5 12:54:17 UTC 2015


I just figured out that my PC target was failing to boot,
because I upgraded the compiler from (buildroot toolchain) gcc-4.8.x to 

The configuration is:
BR2_TARGET_GRUB2_BUILTIN_MODULES="boot linux ext2 fat part_msdos 
part_gpt part_bsd normal biosdisk sleep echo video videoinfo help jpeg 
uhci ehci usb usb_keyboard usbms usbtest gfxterm gfxmenu vbe vga 
video_bochs video_cirrus font search search_fs_file search_label test 
test_blockarg keylayouts at_keyboard cat configfile loadenv eval serial 

(I know, that makes a lot but work like a charm with gcc-4.8.2)

The symptom is :
'' is already set
Aborted. Press any key to exit.

After some (printf) debugging, I found out that when 'loading' the 
builtin modules at startup, some modules names are corrupted.
I am about to get into deeper investigation, but has anyone
encountered it ?

Best regards

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