Gpc February 2012

gpc@gnu.de

1 participants
2 discussions

GPC with gcc-4.[23]
by Waldek Hebisch 18 Apr '13

18 Apr '13

I did some work on updating gpc to newer gcc versions. You can find it at GitHub: https://github.com/hebisch/gpc This is experimental work. 4.2 and 4.3 ports (on "master" Git branch) are basically in "works for my purpose" state: on my machine compiler builds and passes test suite with small (but nonzero) number of failures. On 4.5.1 there is initial port to gcc-4.[45] -- this one is broken from user point of view and may be of some use only for people who want to seriously work on the compiler. Note that this is _not_ a release. There are relatively easy to fix but non working things (in particular some features of Makefiles are broken). Testing was limited to running testsute just for one configuration. I estimate that fixing easily fixable stuff and polishing things would take me about a week -- unfortunately I am busy with other things. So I decided to make the code available "as is". If there will be bug reports, I will look at them and there is reasonable chance that I will fix them. But otherwise I do not plan to work on gpc in near future. If you want to try the code note that there are changes to build process, look at toplevel README file. -- Waldek Hebisch hebisch(a)math.uni.wroc.pl

4 15

unexpected gpc command line behaviour
by trevor-b＠ovi.com 28 Feb '12

28 Feb '12

Hi, I've built gpc-20070904 for openSuSE 12.1 and the gpc command fails unless I type the full path name of gpc on the command line. For example, if I type gpc -- verbose hello.pas , gpc calls the assembler in 32 bit mode. Like this ... trevor@linux-z54m:~/projects/gpc/gpc-20070904/p/demos> gpc --verbose hello.pas Reading specs from /usr/local/gpc/lib64/gcc/x86_64-suse-linux-gnu/3.4.6/specs Configured with: ./configure --host=x86_64-suse-linux-gnu --build=x86_64-suse-linux-gnu --enable-languages=pascal --disable-mapped-location --enable-threads=posix --disable-nls --prefix=/usr/local/gpc --infodir=/usr/local/info --mandir=/usr/local/man Thread model: posix gpc version 20070904, based on gcc-3.4.6 /usr/local/gpc/lib/gcc/x86_64-suse-linux-gnu/3.4.6/gpc1 -quiet -v hello.pas -quiet -dumpbase hello.pas -mtune=k8 -auxbase hello -famtmpfile=/tmp/ccsijV8f.gpa -version -o /tmp/cclfaLHH.s GNU Pascal version 20070904, based on gcc-3.4.6 (x86_64-suse-linux-gnu) compiled by GNU C version 3.4.6. GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072 GNU Pascal Compiler PreProcessor version 20070904, based on gcc-3.4.6 as -V -Qy --32 -o /tmp/ccrX1Zh9.o /tmp/cclfaLHH.s GNU assembler version 2.21.1 (x86_64-suse-linux) using BFD version (GNU Binutils; openSUSE 12.1) 2.21.1 /tmp/cclfaLHH.s: Assembler messages: /tmp/cclfaLHH.s:10: Error: bad register name `%rbp' /tmp/cclfaLHH.s:12: Error: bad register name `%rsp' /tmp/cclfaLHH.s:15: Error: bad register name `%rip)' /tmp/cclfaLHH.s:17: Error: `movabs' is only supported in 64-bit mode /tmp/cclfaLHH.s:20: Error: bad register name `%rip)' /tmp/cclfaLHH.s:22: Error: bad register name `%rip)' ... /tmp/cclfaLHH.s:67: Error: bad register name `%rbp)' On the other hand, when I call gpc using its full path name, everything works as expected ... trevor@linux-z54m:~/projects/gpc/gpc-20070904/p/demos> /usr/local/bin/gpc --verbose hello.pas Reading specs from /usr/local/gpc/lib64/gcc/x86_64-suse-linux-gnu/3.4.6/specs Configured with: ./configure --host=x86_64-suse-linux-gnu --build=x86_64-suse-linux-gnu --enable-languages=pascal --disable-mapped-location --enable-threads=posix --disable-nls --prefix=/usr/local/gpc --infodir=/usr/local/info --mandir=/usr/local/man Thread model: posix gpc version 20070904, based on gcc-3.4.6 /usr/local/gpc/lib/gcc/x86_64-suse-linux-gnu/3.4.6/gpc1 -quiet -v hello.pas -quiet -dumpbase hello.pas -mtune=k8 -auxbase hello -famtmpfile=/tmp/ccVD338Z.gpa -version -o /tmp/ccxCBcyY.s GNU Pascal version 20070904, based on gcc-3.4.6 (x86_64-suse-linux-gnu) compiled by GNU C version 3.4.6. GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072 GNU Pascal Compiler PreProcessor version 20070904, based on gcc-3.4.6 as -V -Qy -o /tmp/ccBkjEYW.o /tmp/ccxCBcyY.s GNU assembler version 2.21.1 (x86_64-suse-linux) using BFD version (GNU Binutils; openSUSE 12.1) 2.21.1 ld --eh-frame-hdr -m elf_x86_64 -dynamic-linker /lib64/ld-linux-x86-64.so.2 /usr/lib/../lib64/crt1.o /usr/lib/../lib64/crti.o /usr/local/gpc/lib64/gcc/x86_64-suse-linux-gnu/3.4.6/crtbegin.o -L/usr/local/gpc/lib64/gcc/x86_64-suse-linux-gnu/3.4.6 -L/usr/local/gpc/lib64/gcc/x86_64-suse-linux-gnu/3.4.6/../../../../lib64 -L/usr/local/gpc/lib64/gcc/x86_64-suse-linux-gnu/3.4.6/../../.. -L/lib/../lib64 -L/usr/lib/../lib64 /tmp/ccBkjEYW.o -lgpc -lm -lgcc --as-needed -lgcc_s --no-as-needed -lc -lgcc --as-needed -lgcc_s --no-as-needed /usr/local/gpc/lib64/gcc/x86_64-suse-linux-gnu/3.4.6/crtend.o /usr/lib/../lib64/crtn.o trevor@linux-z54m:~/projects/gpc/gpc-20070904/p/demos> ./a.out Hello, world. trevor@linux-z54m:~/projects/gpc/gpc-20070904/p/demos> Similar (but not identical) problem when I call gpc with no arguments: When I omit the full pathname, gpc fails because it tries to link an empty file ... trevor@linux-z54m:~/projects/gpc/gpc-20070904/p/demos> gpc --verbose Reading specs from /usr/local/gpc/lib64/gcc/x86_64-suse-linux-gnu/3.4.6/specs Configured with: ./configure --host=x86_64-suse-linux-gnu --build=x86_64-suse-linux-gnu --enable-languages=pascal --disable-mapped-location --enable-threads=posix --disable-nls --prefix=/usr/local/gpc --infodir=/usr/local/info --mandir=/usr/local/man Thread model: posix gpc version 20070904, based on gcc-3.4.6 ld --eh-frame-hdr -m elf_x86_64 -dynamic-linker /lib64/ld-linux-x86-64.so.2 /usr/lib/../lib64/crt1.o /usr/lib/../lib64/crti.o /usr/local/gpc/lib64/gcc/x86_64-suse-linux-gnu/3.4.6/crtbegin.o -L/usr/local/gpc/lib64/gcc/x86_64-suse-linux-gnu/3.4.6 -L/usr/local/gpc/lib64/gcc/x86_64-suse-linux-gnu/3.4.6/../../../../lib64 -L/usr/local/gpc/lib64/gcc/x86_64-suse-linux-gnu/3.4.6/../../.. -L/lib/../lib64 -L/usr/lib/../lib64 --no-warn-search-mismatch -lgpc -lm -lgcc --as-needed -lgcc_s --no-as-needed -lc -lgcc --as-needed -lgcc_s --no-as-needed /usr/local/gpc/lib64/gcc/x86_64-suse-linux-gnu/3.4.6/crtend.o /usr/lib/../lib64/crtn.o /usr/lib/../lib64/crt1.o: In function `_start': /home/abuild/rpmbuild/BUILD/glibc-2.14.1/csu/../sysdeps/x86_64/elf/start.S:109: undefined reference to `main' trevor@linux-z54m:~/projects/gpc/gpc-20070904/p/demos> With a full pathname, gpc prints some version info and exits (as expected) trevor@linux-z54m:~/projects/gpc/gpc-20070904/p/demos> /usr/local/bin/gpc --verbose Reading specs from /usr/local/gpc/lib64/gcc/x86_64-suse-linux-gnu/3.4.6/specs Configured with: ./configure --host=x86_64-suse-linux-gnu --build=x86_64-suse-linux-gnu --enable-languages=pascal --disable-mapped-location --enable-threads=posix --disable-nls --prefix=/usr/local/gpc --infodir=/usr/local/info --mandir=/usr/local/man Thread model: posix gpc version 20070904, based on gcc-3.4.6 trevor@linux-z54m:~/projects/gpc/gpc-20070904/p/demos> Note: /usr/local/bin/gpc is a link: trevor@linux-z54m:~/projects/gpc/gpc-20070904/p/demos> file /usr/local/bin/gpc /usr/local/bin/gpc: symbolic link to `/usr/local/gpc/bin/gpc' trevor@linux-z54m:~/projects/gpc/gpc-20070904/p/demos> Also, trevor@linux-z54m:~/projects/gpc/gcc-3.4.6/gcc/p/test> uname -a Linux linux-z54m 3.1.0-1.2-desktop #1 SMP PREEMPT Thu Nov 3 14:45:45 UTC 2011 (187dde0) x86_64 x86_64 x86_64 GNU/Linux trevor@linux-z54m:~/projects/gpc/gcc-3.4.6/gcc/p/test> Also, calling gpc (ie in short form, not using full pathname) from a shell script works as expected, so the test scripts work. Results copied below. I built gpc on openSuSE 11.3using the same build process (as far as I know) and there were no problems. OK, it's not a catastrophic failure, but I would like to fix it. Does anyone know what causes this, and what I need to do about it? Any ideas much appreciated. Test summary: === gpc Summary === # of tests 5111 # of expected passes 5102 # of unexpected failures 7 # of unsupported tests 2

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Gpc February 2012