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#88 mcs51 internal memory layout incorrect
Linking my application from a number of libraries on a 8051
leads to an incorrect internal memory layout.
Internal RAM layout:
0 1 2 3 4 5 6 7 8 9 A B C D E F
0x00:|0|0|0|0|0|0|0|0|a|a|b|b|b|b|b|b|
0x10:|b|b|b|b|b|b|b|c|c|c|c|c|c|h|S| |
0x20:|B|B|B|d|d|d|d|d|d|d|d|d|e|e|e|e|
0x30:|e|e|e|e|f|f|f|f|f|f|f|f|g|g|g|g|
0x40:|Q|Q|Q|Q| | | | | | | | | | | | |
0x50:| | | | | | | | | | | | | | | | |
0x60:| | | | | | | | | | | | | | | | |
0x70:| | | | | | | | | | | | | | | | |
0x80:| | | | | | | | | | | | | | | | |
0x90:| | | | | | | | | | | | | | | | |
0xa0:| | | | | | | | | | | | | | | | |
0xb0:| | | | | | | | | | | | | | | | |
0xc0:| | | | | | | | | | | | | | | | |
0xd0:| | | | | | | | | | | | | | | | |
0xe0:| | | | | | | | | | | | | | | | |
0xf0:| | | | | | | | | | | | | | | | |
0-3:Reg Banks, T:Bit regs, a-z:Data, B:Bits, Q:Overlay, I:iData, S:Stack, A:Absolute
ERROR: Couldn't get 64 bytes allocated in internal RAM for area SSEG.
Stack starts at: 0x1e (sp set to 0x1d) with 2 bytes available.
Other memory:
Name Start End Size Max
---------------- -------- -------- -------- --------
PAGED EXT. RAM 0x0001 0x0077 119 256
EXTERNAL RAM 0x0078 0x0211 410 32768
ROM/EPROM/FLASH 0x0000 0x5dd4 24021 32768
Stack segment is misplaced and too small. Internal memory size is 128 bytes.
SDCC : mcs51/z80/z180/r2k/r3ka/gbz80/tlcs90/ds390/pic16/pic14/TININative/ds400/hc08/s08/stm8 3.4.0 #8981 (Apr 5 2014) (Linux)
SDCC was called with the parameters below:
sdcc --verbose --out-fmt-ihx --xram-size 32768 --iram-size 128 \
--stack-size 64 --code-size 32768 --model-medium\
-L../../EventLogger/bin \
-L../../Frontplatte/bin \
-L../../HW-Register/bin \
-L../../HW-StromquelleMultikanal/bin \
-L../../HW-UMessMultikanal/bin \
-L../../Interface-Kanal/bin \
-L../../Interface-System/bin \
-L../../MesswertSpeicher/bin \
-L../../StatusIO/bin \
-L../../Timer/bin \
-L../../TracerGUI/bin \
-L../../TracerLib/bin \
-L../../USB-Interface/bin \
eventLogger.lib frontplatte.lib hwRegister.lib \
stromQuelleMC.lib uMessMultikanal.lib messwertSpeicher.lib \
kanalInterface.lib systemInterface.lib \
statusIO.lib timer.lib tracerGUI.lib usbIF.lib \
tracerMesscontroller.lib Main.rel
Linking the same libraries in other combinations with different Main.rel
leads to working code.
Any idea what could be wrong ?
Diff:
I thunk it might be that the linker first locates the stack (which is specified as only one byte) in the 2 bytes at 0x1E and then finds out it can't place the full 64 bytes there.
Since I can't reclassify this as a bug report, would you please file it again as a bug? And close this one afterwards?
Maarten
Re-submitted as bug report. Closed support request
Please close ticket.
Are you saying that you as Creator could not close this item? It should be under "Edit". Anyway, it's closed now.