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| README for uC-libc on the m68k[nommu] architecture |
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| James Graves <jgraves@deltamobile.com> |
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| For now (2001/1/9) support for the m68k should be considered "alpha" |
| quality at best. It mostly works OK for some of the stuff I'm working |
| on, but you can't fully compile other things (like the user |
| applications for uClinux). Needs lots more testing. |
| |
| Only developed/tested with m68k-pic-coff-gcc 2.7.2.3-pic-060999, from |
| Lineo. |
| |
| Configuration: |
| |
| Read and edit the Config file, carefully. |
| |
| TARGET_ARCH=m68k |
| CROSS_COMPILE = m68k-pic-coff- |
| CC = $(CROSS_COMPILE)gcc |
| STRIPTOOL = $(CROSS_COMPILE)strip |
| KERNEL_SOURCE=/opt/uClinux/linux |
| HAS_MMU = false |
| HAS_FLOATS = false |
| MALLOC = malloc-simple |
| INSTALL_DIR = /opt/uClinux/m68k-pic-coff |
| |
| The regular malloc library is broken, dunno why. Use |
| simple-malloc. |
| |
| Installation: |
| Theoretically, you should be able to install right over the |
| existing uC-libc 0.9.1 files in |
| /opt/uClinux/m68k-pic-coff/include, but I recommend cleaning |
| out all the include files there. |
| |
| The only file in there that's not from the old uC-libc is |
| assert.h, but I don't know why that would be the valid copy. |
| |
| run: |
| make install |
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| Problems: |
| |
| I _may_ be able to help if you run into problems. Create a |
| really, really short program that demonstrates the problem, |
| and contact me. |
| |
| TODO: |
| Fix vfork(). |
| |
| Does crt0.o still need to be a separate file? Can't I just |
| stick it in libc.a and be done with it? Is that specified in |
| the GCC link options? |