[avr-gcc-list] section flags .data

[Torsten Mohr]

Hi,

i wrote a flash bootloader and directly download the ELF file.

This all works fine, except:

The section .data got the type PROGBITS and also got the allocate
bit "A" set in the section flags.  This is the condition that is
needed to download a section into flash.

It does not make sense to me to "download" the .data section into
flash memory.

Are the section flags or type incorrectly set by avr-gcc/-ld or
is my condition for downloading a section into flash incorrect?


I once got the hint on the binutils mailing list that this is the
condition to download a section into flash, but it looks incorrect
to me.

Here's the output of avr-readelf -S:

Section Headers:
  [Nr] Name      Type            Addr     Off    Size   ES Flg Lk Inf Al
  [ 0]           NULL            00000000 000000 000000 00      0   0  0
  [ 1] .data     PROGBITS        00800100 002204 00000c 00  WA  0   0  1
  [ 2] .text     PROGBITS        00000000 000094 002170 00  AX  0   0  1
  [ 3] .bss      NOBITS          0080010c 002210 00024b 00  WA  0   0  1
  [ 4] .noinit   PROGBITS        00800357 002210 000000 00   W  0   0  1
  [ 5] .eeprom   PROGBITS        00810000 002210 000000 00   W  0   0  1
  [ 6] .stab     PROGBITS        00000000 002210 00033c 0c      7   0  4
  [ 7] .stabstr  STRTAB          00000000 00254c 000043 00      0   0  1


Best regards,
Torsten.