1999-04-26 18:34:20 +00:00
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See ??? comments here and in cgen, and in libgloss/i960.
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Simulator:
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Update sim/i960 directory from sim/m32r directory. sim/i960 dir was created
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by copying the sim/m32r in September 1998, and is missing all sim/m32r updates
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since then.
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Review, clean up, finish, etc simulator files that are not cgen generated.
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This includes devices.c, i960-sim.h, mloop.in, sim-if.c, sim-main.h,
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tconfig.in, and traps.c.
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Some functions do not show up in trace output. This occasionally happens
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for main.
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Gdb core dumps if compile without -mka. Apparently a problem with recognizing
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"core" machine type.
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Get profiling working.
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Add pipelining, execution unit, timing, etc info.
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Add support for other models, besides KA.
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Add support for newer architectures, e.g. v1.1 instructions.
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Compiler:
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Running gcc gives nm warning from collect about missing a.out file.
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The output file is b.out, not a.out. Collect is probably looking for
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the wrong file name.
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Use of -mca gives lots of linker warnings for ka/ca architecture conflicts,
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but the two architectures are compatible.
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Need 96 bit long double support in fp-bit.c, otherwise any testcase using
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long double arithmetic hits an abort and runtime.
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Compiler takes far too much time to compile PlumHall testcases at high
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optimization levels.
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r2 seems to be an available call-clobbered registers, since it isn't used
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until a call occurs, and is dead when the call returns.
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BSP:
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Libgloss does not check for syscall error returns, which means errno never
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gets set.
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Libgloss does not use the syscall.h file.
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Binutils:
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Objdump -d fails on 64-bit host, specifically irix6.
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Gdb:
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Gdb sometimes prints messages about trace/breakpoint trap when hitting a
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breakpoint.
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Frame, up, down and related commands don't work.
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Gdb fails when next'ing over a leaf function compiled with -mleaf-procedure.
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Gdb fails when step'ing over a return from such a leaf function.
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