This allows to remove td_dbg_sc_code and td_dbg_sc_nargs.
Also, it allows to optionally print the syscall number in nosys().
Also, add PT_GET_SC_ARGS argument fetch operation for ptrace(2).
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- rS FreeBSD src repository - subversion
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Right now this is only compiled on i386/amd64. PT_GET_SC_ARGS is not tested and not documented.
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Handle compat32: simply copy out low 32bits from each arg. This should be, in fact, a correct truncation.
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Looks good to me. For full truss cleanup I'll also eventually want a PT_GET_SC_RVAL that returns td_retval[] and the translated error value from the system call (though I could also accept the "raw" error and do the translation in userland via the tables in libsysdecode). That one is easy enough I can add when adopting truss to use this.
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Update patch to the current state, including fixes to PT_GET_SC_ARGS (it passes tests) and to scescx.c test itself.