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maybe, a BUG of ARM Linker version 4.0 Build 697
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maybe, a BUG of ARM Linker version 4.0 Build 697
wang david
over 12 years ago
Note: This was originally posted on 12th August 2010 at
http://forums.arm.com
Here is the piece of code in a C source file.
#pragma arm section rwdata ="cellular_ram"
u8 gv_CFI[256]={0};/* MAN ID DID1,DID2,DID3*/
u16 gv_DIDR;
u16 gv_RCR;
u16 gv_BCRInit;
u16 gv_BCR;
#pragma arm section rwdata
then, in scatter file, somethin like this:
ER_PRE_INIT_DATA 0xA01FF000 (0x00001000)
{
init.ptl(cellular_ram,+FIRST)
drv_gpio.*(+RW,+ZI)
}
I want to put gv_CFI and the ohter 4 u16 var together in a fix place.
But, after link finished. I check the MAP file.
I found this:
[color="#FF0000"] gv_CFI 0xa802fe58 Data 128 init.ptl(.bss) [/color]
gv_DIDR 0xa01ff000 Data 2 init.ptl(cellular_ram)
gv_RCR 0xa01ff002 Data 2 init.ptl(cellular_ram)
gv_BCRInit 0xa01ff004 Data 2 init.ptl(cellular_ram)
gv_BCR 0xa01ff006 Data 2 init.ptl(cellular_ram)
the gv_CFI is placed wrong.....
How can I deal with this ? Why the linker split it from the other four? They are all .bss. why??
Who can help me?
I'm downloading the latest build of RVCT. I hope it will resolve my problem. ...
After upgrade to RVCT v4.0 Build 821, the same problem.
Then, I tried like this:
u8 gv_CFI[256]={0xFF};
It's done.
Thanks for the help of scott.
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