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af3ca30ad2
- mention s390x/linux in README - formatting tweak in README.s390 so things don't look ugly in html - add README.s390 and README.android to distribution documents git-svn-id: svn://svn.valgrind.org/valgrind/trunk@12277
37 lines
1.3 KiB
Plaintext
37 lines
1.3 KiB
Plaintext
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Requirements
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------------
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- You need GCC 3.4 or later to compile the s390 port.
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- A working combination of autotools is required.
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- To run valgrind a z900 machine or any later model is needed.
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Limitations
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-----------
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- 31-bit client programs are not supported.
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- Hexadecimal floating point is not supported.
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- Decimal floating point is not supported yet.
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- Currently, only memcheck, massif, lackey, and none are supported
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- helgrind and drd seem to work on SLES10,11 and RHEL5,6 on z9,z10 and z196
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but might fail on other hardware/software combinations.
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- Some gcc versions use mvc to copy 4/8 byte values. This will affect some
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debug messages. Valgrind will complain about 4 or 8 one-byte reads/writes
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instead of just 1 read/write.
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- exp-ptrcheck and callgrind are not supported.
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Recommendations
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---------------
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Applications should be compiled with -fno-builtin to avoid
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false positives due to builtin string operations when running memcheck.
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Reading Material
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----------------
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(1) Linux for zSeries ELF ABI Supplement
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http://refspecs.linuxfoundation.org/ELF/zSeries/index.html
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(2) z/Architecture Principles of Operation
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http://publibfi.boulder.ibm.com/epubs/pdf/dz9zr008.pdf
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(3) z/Architecture Reference Summary
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http://publibfi.boulder.ibm.com/epubs/pdf/dz9zs006.pdf
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