I am a newbie to u-boot. I found some macros in file u-boot-1.1.3\include\ppc_asm.tmpl
#define START_GOT \ .section ".got2","aw"; \ .LCTOC1 = .+32768
#define END_GOT \ .text
#define GET_GOT \ bl 1f ; \ .text 2 ; \ 0: .long .LCTOC1-1f ; \ .text ; \ 1: mflr r14 ; \ lwz r0,0b-1b(r14) ; \ add r14,r0,r14 ;
#define GOT_ENTRY(NAME) .L_ ## NAME = . - .LCTOC1 ; .long NAME
#define GOT(NAME) .L_ ## NAME (r14)
in file u-boot-1.1.3\cpu\mpc8260\start.S, I found some statements as follows START_GOT GOT_ENTRY(_GOT2_TABLE_) GOT_ENTRY(_FIXUP_TABLE_)
GOT_ENTRY(_start) GOT_ENTRY(_start_of_vectors) GOT_ENTRY(_end_of_vectors) GOT_ENTRY(transfer_to_handler)
GOT_ENTRY(__init_end) GOT_ENTRY(_end) GOT_ENTRY(__bss_start) #if defined(CONFIG_HYMOD) GOT_ENTRY(environment) #endif END_GOT
I thougt that these statement will be something as follows after preprocessed by gasp .section ".got2","aw"; .LCTOC1 = .+32768
.L___GOT2_TABLE _= . - .LCTOC1; .long _GOT2_TABLE_ ................ ...............
My questions are: (1) what is the meaning of the "LCT0C1"? is ".LCTOC1" a symbol or a directive ? if ".LCTOC1" is a symbol ,why I can not see it using nm or objdump?
(2) what is the meaning of the ".L__GOT2_TABLE_". what is the relation between ".L__GOT2_TABLE_" and "_GOT2_TABLE_" defined in u-boot.lds?
THANKS!