forked from KolibriOS/kolibrios
90 lines
2.8 KiB
Plaintext
90 lines
2.8 KiB
Plaintext
Siemargl port comments
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Used github branch https://github.com/TinyCC/tinycc
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It have a vesion 0.9.26 with heads up to 0.9.27 - see ChangeLog
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Kolibri version errata/changelog:
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-added TCC_TARGET_MEOS as needed
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-leading_underscore by default is 0 (can use -f[no-]leading-underscore),
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otherwise (error) underscoring all symbols, not only cdecl
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-added message in tccmeos.c about missed symbols when linking KOS executable
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-start.o added automatically, when -nostdlib not used
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-to use standard ktcc lib must add -lck at commandline
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-default search paths are ./include ./lib from executable (under KOS need to
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use -Bpath_to_ktcc and put start.o in current dir)
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-when config.h is ready, compiler can be easy builded as [kos32-]gcc tcc.c libtcc.c
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see also makefile.kos32
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-silent (kos) -> writes to debugboard
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-impossible using with mingw-gcc compiled lib, incompatible library format:
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.o is PE-format from gcc but ELF from tcc, may be linux-gcc does it ok
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-no symbols (mapfile) for debug, see howtodebugtcc
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-how to use packed attribute see test82
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-alias attribute wont work
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-unnamed structs in union may lead to compiler internal error
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-tcc: error: undefined symbol '__tcc_cvt_ftol'
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--in config.h - used workaround (#define COMMIT_4ad186c5ef61_IS_FIXED
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--but this is precision bugfix - see \tests\tests2\000_cvttoftol.c
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-not working: default search path are ./include ./lib from executable
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--under KOS need to use -Bpath_to_ktcc
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--start.o not found using -B (kos) - put near your.c file
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-if static var sized more than 14096+ -> crash compiled .exe (kos)
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---^ stack size set in menuet header at compile time tccmeos.c:177 about 4k
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Tests status:
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asmtest +
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abitest not tested (embedding compiler)
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libtcctest not tested (embedding compiler)
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boundtest ----- alloca removed from tcc libtcc.c:945 (really not worked)
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tcctest most test ok, some problems with long double
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vla_test.c +
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pp/* + (minor comment error in 13.s)
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tests2/* : see below
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// errata
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skippin' tests
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test76 fail dollars in identifiers
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test34 fail (array assignment not supported)
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test73 fail compile (no stdint.h), printfloat, ARM specific
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test46 no stdin - removed funtionality read from console, but file ops works
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libc:
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-no "finished" in title of console program after exit console - use con_exit()
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-bench timing error (0s or 1s)
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-minimal memory allocator
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-memmove cannot overlap
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libc not full
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no files:
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assert.h
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errno.h
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limits.h
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locale.h
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setjmp.h
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signall.h
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time.h
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check functions:
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stdio.h:
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Operations on files: none http://www.cplusplus.com/reference/cstdio/
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reopen
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setbuf, setvbuf
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scanf, sscanf, vfscanf(C11), vscanf(C11), vsscanf(C11)
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vfprintf, vsfprintf
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+fgets, gets
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fputs, puts
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getchar
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putc
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+putchar
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Error-handling: only feof
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Macros: only EOF, NULL, FILE
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-all files in libc/kolibrisys catalog are stdcall in header, but in asm cdecl
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