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version 1.1, 2002/07/24 08:00:16

version 1.2, 2003/06/24 05:11:38

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See README.alpha for Linux on DEC AXP info.

This file applies mostly to Linux/Intel IA32. Ports to Linux on an M68K

This file applies mostly to Linux/Intel IA32. Ports to Linux on an M68K, IA64,

and PowerPC are also integrated. They should behave similarly, except that

SPARC, MIPS, Alpha and PowerPC are also integrated. They should behave

the PowerPC port lacks incremental GC support, and it is unknown to what

similarly, except that the PowerPC port lacks incremental GC support, and

extent the Linux threads code is functional. See below for M68K specific

it is unknown to what extent the Linux threads code is functional.

notes.

See below for M68K specific notes.

Incremental GC is supported on Intel IA32 and M68K.

Incremental GC is generally supported.

Dynamic libraries are supported on an ELF system. A static executable

should be linked with the gcc option "-Wl,-defsym,_DYNAMIC=0".

The collector appears to work with Linux threads. We have seen

The collector appears to work reliably with Linux threads, but beware

intermittent hangs in sem_wait. So far we have been unable to reproduce

of older versions of glibc and gdb.

these unless the process was being debugged or traced. Thus it's

possible that the only real issue is that the debugger loses

signals on rare occasions.

The garbage collector uses SIGPWR and SIGXCPU if it is used with

Linux threads. These should not be touched by the client program.