Oleg Verych wrote on 20/01/08 10:13 MET: > @2008-01-19, Friedrich Lobenstock: > [] >> Let us now put the puzzle together and change our program in the following >> way when declaring the .vectors section: >> ; Interrupt Vector Table >> .section .vectors, "a" >> >> Note the added "Alloc" flag. > > Is it possible to do with `objcopy`? I've used this for some flash section: > > objcopy --set-section-flags .flashsection="alloc,code,readonly" -O elf32-avr > a.out out.elf > > when i did AVR stuff.
Yes it is, thanks for the hint. # readelf -S testprogram There are 6 section headers, starting at offset 0xbc: Section Headers: [Nr] Name Type Addr Off Size ES Flg ~ [ 0] NULL 00000000 000000 000000 00 ~ [ 1] .text PROGBITS 0000fc00 000054 00001c 00 AX ~ [ 2] .vectors PROGBITS 0000ffe0 000070 000020 00 ~ [ 3] .shstrtab STRTAB 00000000 000090 00002a 00 ~ [ 4] .symtab SYMTAB 00000000 0001ac 000130 10 ~ [ 5] .strtab STRTAB 00000000 0002dc 000089 00 ~ Key to Flags: W (write), A (alloc), X (execute), M (merge), S (strings) I (info), L (link order), G (group), x (unknown) O (extra OS processing required) o (OS specific), p (processor specific) # msp430-objcopy --set-section-flags .vectors="alloc,readonly" testprogram BFD: stXnFAhC: warning: allocated section `.vectors' not in segment # readelf -S testprogram There are 6 section headers, starting at offset 0xbc: Section Headers: [Nr] Name Type Addr Off Size ES Flg ~ [ 0] NULL 00000000 000000 000000 00 ~ [ 1] .text PROGBITS 0000fc00 000054 00001c 00 AX ~ [ 2] .vectors PROGBITS 0000ffe0 000070 000020 00 A ~ [ 3] .shstrtab STRTAB 00000000 000090 00002a 00 ~ [ 4] .symtab SYMTAB 00000000 0001ac 000130 10 ~ [ 5] .strtab STRTAB 00000000 0002dc 000089 00 ~ Key to Flags: W (write), A (alloc), X (execute), M (merge), S (strings) I (info), L (link order), G (group), x (unknown) O (extra OS processing required) o (OS specific), p (processor specific) -- MfG / Regards Friedrich Lobenstock
