I have the following linker command file:
MEMORY
{
shared_ram: ORIGIN = 0x40200000 LENGTH = 0x00010000
}
SECTIONS
{
.text: align=4
{
mmcload.obj(.text)
*(.text)
} > shared_ram
.const: align=4 { *(.const) } > shared_ram
.data: align=4 { *(.data) } > shared_ram
.bss: align=4
{
_bss_start = .;
*(.bss)
_bss_end = .;
} > shared_ram
}
When I look at the mapfile, this is what I see:
run origin load origin length init length attrs members
---------- ----------- ---------- ----------- ----- -------
40200000 40200000 0000ae54 0000ae54 r-x
40200000 40200000 0000ae54 0000ae54 r-x .text
4020ae54 4020ae54 0000086a 00000000 rw-
4020ae54 4020ae54 0000086a 00000000 rw- .bss
4020b6c0 4020b6c0 00000439 00000439 r--
4020b6c0 4020b6c0 00000439 00000439 r-- .const
4020bafc 4020bafc 00000858 00000055 rw-
4020bafc 4020bafc 00000055 00000055 rw- .data
4020bb54 4020bb54 00000800 00000000 rw- .stack
Undoubtedly, you will notice that the order of the output sections given in the linker command file:
.text
.const
.data
.bss
is not being followed, because the mapfile shows them as being in the order of:
.text
.bss
.const
.data
FURTHERMORE
your documentation (spnu118i.pdf, page 188) states:
The SECTIONS directive controls your sections in the following ways:
• Describes how input sections are combined into output sections
• Defines output sections in the executable program
• Specifies where output sections are placed in memory (in relation to each other and to the entire
memory space)
• Permits renaming of output sections
Well, it's clearly not doing this.
I'm REALLY tired of dealing with these tools.
Can someone explain this irrational and (according to your documentation) incorrect behavior?
Incidentally, the workaround is to do
.text
{
mmcload.obj(.text)
*(.text)
*(.const)
*(.data)
}
but I don't want to.
I want the tools to behave the way they're documented!!
I need this ordering because I'm going to convert this to binary for putting into an MLO file to put onto an SD card to boot my system.
I eagerly await someone's prompt reply. I'm hoping I'll get one w/in 24 hours.
