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Here I attach the result of the assembly with binutils 2.19.1. For the "objdump -S" of the related part: Disassembly of section .reset_vector_sect: 00000000 <romBoot-0x3c>: #endif /* Check if we booted from DRAM. If we did someone already */ /* initialize the DRAM controller */ adr r4, jumpStart /* r4 <- current position of code */ 0: e24f4008 sub r4, pc, #8 ; 0x8 mov r5, #~0xff 4: e3e050ff mvn r5, #255 ; 0xff and r4, r4, r5 8: e0044005 and r4, r4, r5 nop nop /* End of code load */ #endif /* MV78XX0 */ Moving the label below the '.section' solved my assembly problems in 2.20. Regards, LluÃs. 2009/11/3 Phil Blundell <pb@reciva.com>: > On Tue, 2009-11-03 at 20:24 +0100, LluÃs Batlle wrote: >> jumpStart: >> >> .section    Â".reset_vector_sect",#alloc, #execinstr >> >>     /* Check if we booted from DRAM. If we did someone already   Â*/ >>     /* initialize the DRAM controller                */ >> >>     adr   r4, jumpStart      /* r4 <- current position of >> code  */ /* line 62 of the source file */ >>     mov   r5, #~0xff > >> Assembling with binutils 2.20 gas, I get: >> jump.S:62: Error: symbol .text is in a different section >> >> Does anybody understand this behaviour? Maybe I am doing something >> wrong? I don't understand the meaning of that message in this context. > > I am rather surprised that binutils 2.19.1 accepted this code. ÂWhat > output did it produce? > > The "adr" pseudo-op is (approximately) an assembler shorthand for "add > rN, pc, #(dest - .)", i.e. it assembles to an arithmetic operation with > an immediate operand. ÂUsing adr across sections is possible in theory, > albeit with restrictions, but I don't think either GAS nor GNU ld > understand the relocation types that you would need to make it work. > > p. > > >
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jump.o
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