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# $Id: PROBLEMS,v 1.2 2001-09-27 11:59:11 chris Exp $
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# $Id: PROBLEMS,v 1.2 2001-09-27 11:59:11 chris Exp $
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#
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This is the list of outstanding problems in this release.
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This is the list of outstanding problems in this release.
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+ AMD 29k port is based on a non-GNU toolset.
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+ AMD 29k port is based on a non-GNU toolset.
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+ The test spfatal is out of date and as a result will NOT execute
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+ The test spfatal is out of date and as a result will NOT execute
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correctly. The addition of POSIX and consequent ongoing initialization
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correctly. The addition of POSIX and consequent ongoing initialization
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reorganization makes it pointless to fix this until the POSIX support
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reorganization makes it pointless to fix this until the POSIX support
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is completely in place.
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is completely in place.
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+ The m68k family has become quite large and an understanding of the
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+ The m68k family has become quite large and an understanding of the
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compatibility of the peripherals on the various members of the 683xx
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compatibility of the peripherals on the various members of the 683xx
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family would allow someone to designate some of the drivers submitted
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family would allow someone to designate some of the drivers submitted
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for the gen683xx BSPs as useful on other members.
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for the gen683xx BSPs as useful on other members.
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+ The only supported i960 family member is the CA. No support for the
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+ The only supported i960 family member is the CA. No support for the
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floating point support found in other family members is present.
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floating point support found in other family members is present.
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This also implies that RTEMS may "think" of something as generic
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This also implies that RTEMS may "think" of something as generic
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across the i960 family when in fact it is specific to the CA.
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across the i960 family when in fact it is specific to the CA.
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To make matters worse, the i960 target board owned by the RTEMS Project
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To make matters worse, the i960 target board owned by the RTEMS Project
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is now broken and as a result even the i960CA is a "compile only" port.
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is now broken and as a result even the i960CA is a "compile only" port.
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+ Some of the BSPs still define RAM_START and RAM_END in the bsp.h file.
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+ Some of the BSPs still define RAM_START and RAM_END in the bsp.h file.
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It is better to define these in the linkcmds file. It is also nice
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It is better to define these in the linkcmds file. It is also nice
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to use the linkcmds file to place overlays for on-board hardware.
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to use the linkcmds file to place overlays for on-board hardware.
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+ Not all of the BSP console drivers have been converted to termios.
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+ Not all of the BSP console drivers have been converted to termios.
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Look at the m68k/gen68360, sparc/erc32, and powerpc/psim BSPs for
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Look at the m68k/gen68360, sparc/erc32, and powerpc/psim BSPs for
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examples.
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examples.
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+ UNIX port notes:
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+ UNIX port notes:
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+ sometimes a stray SIGALRM is reported as spfatal completes.
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+ sometimes a stray SIGALRM is reported as spfatal completes.
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+ There are conflicts between the names of native library routines
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+ There are conflicts between the names of native library routines
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which MUST be used and those in the POSIX support. This must
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which MUST be used and those in the POSIX support. This must
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be addressed. The POSIX API cannot be used with this port as a
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be addressed. The POSIX API cannot be used with this port as a
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result of this.
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result of this.
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+ Someone suggested writing a mini-system call interface to
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+ Someone suggested writing a mini-system call interface to
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include with RTEMS which would eliminate name conflicts. This
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include with RTEMS which would eliminate name conflicts. This
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would allow the RTEMS POSIX API to be tested in this configuration.
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would allow the RTEMS POSIX API to be tested in this configuration.
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+ Some of the tests may execute correctly and not produce the exact
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+ Some of the tests may execute correctly and not produce the exact
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ordering of lines in the screen file. This appears to be a combination
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ordering of lines in the screen file. This appears to be a combination
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of a number of factors including buffering, processor speed, IO
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of a number of factors including buffering, processor speed, IO
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device overhead, and clock interrupt rate. The biggest problem is that
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device overhead, and clock interrupt rate. The biggest problem is that
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some tests depend on polled IO with no unexpected context switches.
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some tests depend on polled IO with no unexpected context switches.
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These may not be resolvable while maintaining the spirit of the test.
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These may not be resolvable while maintaining the spirit of the test.
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+ The clock device drivers should really avoid doing the division
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+ The clock device drivers should really avoid doing the division
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by 1000 in the clock tick ISR to convert microseconds into
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by 1000 in the clock tick ISR to convert microseconds into
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milliseconds. This only applies to clock drivers which generate
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milliseconds. This only applies to clock drivers which generate
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an ISR each millisecond and only call rtems_clock_tick every
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an ISR each millisecond and only call rtems_clock_tick every
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so many ISRs.
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so many ISRs.
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+ Cross-check configure --enable-* flags.
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+ Cross-check configure --enable-* flags.
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+ warn/refuse to configure when --enable-libcdir and
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+ warn/refuse to configure when --enable-libcdir and
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--enable-gcc28 are given.
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--enable-gcc28 are given.
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+ force --enable-libcdir when --disable-gcc28 is given
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+ force --enable-libcdir when --disable-gcc28 is given
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+ make profile does not currently work for a variety of reasons. Few
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+ make profile does not currently work for a variety of reasons. Few
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BSPs include profile versions of the libraries in their bsp_specs
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BSPs include profile versions of the libraries in their bsp_specs
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file. There is no mechanism to sample data for gperf to process.
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file. There is no mechanism to sample data for gperf to process.
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All of this will need to be addressed before "make profile" is truly
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All of this will need to be addressed before "make profile" is truly
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useful.
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useful.
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+ Bare BSP does not compile for all configurations yet. This is
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+ Bare BSP does not compile for all configurations yet. This is
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primarily due to libcpu support code assuming that the BSP has
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primarily due to libcpu support code assuming that the BSP has
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made something available which is not with a bare BSP.
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made something available which is not with a bare BSP.
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