| Issue |
60203
|
| Summary |
[AVR] link failure: clang passes broken option `-T text=` and `-T data=` to the GNU linker
|
| Labels |
|
| Assignees |
|
| Reporter |
sprintersb
|
The GNU linker supports options `-Ttext=`, `-Tdata=` etc. But when clang passes these options to GNU `ld`, it adds an additional blank after `T`:
```none
> echo 'int main(){};' | avr-gcc -xc - -o x.elf -mmcu=atmega2560 -Ttext=0x10000 -v # ok
```
shows that `ld` gets `-Ttext=0x10000`. With clang however it passes `-T text=0x10000`:
```none
> echo 'int main(){};' | avr-clang -xc - -o x.elf -mmcu=atmega2560 -Ttext=0x10000 -v
...
"/usr/bin/avr-ld" -o x.elf --gc-sections -L... -Tdata=0x800200 --start-group -l:crtatmega2560.o -lgcc -lm -lc -latmega2560 /tmp/--17d6c3.o --end-group -T text=0x10000 -mavr6
/usr/bin/avr-ld: cannot open linker script file text=0x10000: No such file or directory
clang: error: avr-ld command failed with exit code 1 (use -v to see invocation)
```
Using `-Wl,Tdata=` to pass options through to the linker is not a good idea, because the driver program must omit `-Tdata=` if the user specifies `-Tdata=`. Using `-Wl,-Tdata=` would lead to two incompatible specifictions of data start.
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