Hi, I'm compiling a small test program that consist of two source files. I've uploaded the files as a zip archive to
http://www.sparetimelabs.com/sdccbug.zip and attached them as well. My problem is that I get this error message: ?ASlink-Warning-Undefined Global '_putf_PARM_2' referenced by module 'printf' where '_putf_PARM_2' is a compiler generated variable. I'm compiling them with a script (included in the archive as file 'makeit' ) as follows : ------------------------------------------------------------ echo Compile hello.c sdcc -mhc08 -c hello.c echo Compile printf.c sdcc -mhc08 -c printf.c echo Link hello.c sdcc -mhc08 --code-loc 0xE000 --stack-loc 0x00FF --xstack-loc 0x300 --data-loc 0x0100 --idata-loc 0x080 --xram-loc 0x200 -o hello.S19 hello.rel printf.rel ------------------------------------------------------------ This produces a link warning for a compiler generated variable the compiler uses to pass a parameter. And disassembling the generated code I see that indeed the variable is not referenced properly. The output from the script above is: ------------------------------------------------------------ Compile hello.c Compile printf.c Link hello.c ?ASlink-Warning-Undefined Global '_putf_PARM_2' referenced by module 'printf' ------------------------------------------------------------ My SDCC version is: ------------------------------------------------------------ sdcc -v SDCC : mcs51/gbz80/z80/avr/ds390/pic16/pic14/TININative/xa51/ds400/hc08 2.7.4 #4988 (Jan 9 2008) (Mac OS X i386) ------------------------------------------------------------ Looking at the usage of the putf function in 'printf.c' I see that it is not the most common garden variety function call: ------------------------------------------------------------ typedef void (*putcf) (void*,char); ... void tfp_format(void* putp,putcf putf,char *fmt, va_list va) ... putf(putp,ch); ------------------------------------------------------------ So it is a call to a function through a function pointer... could this be a compiler bug or am I doing something wrong? Needles to say Ive compiled/linked and run this code previously without any problems with gcc. br Kusti s
printf.h
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printf.c
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makeit
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hello.c
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