Greetings, I am interested in using the PostgreSQL on machines with Renesas (formerly Hitachi) superH4A-based processors. I checked with the literature and noted from this URL ( http://developer.postgresql.org/pgdocs/postgres/supported-platforms.html ) that the superH family does not appear to be supported.
I also noted that that a Nobuhiro Iwamatsu 5th April 2008 submitted a patch ( http://www.mail-archive.com/pgsql-patches%40postgresql.org/msg19890.html ) for the file (~/include/server/storage/s_lock.h ) to rectify the lack-of-support-for-the-superH-problem. I noticed that the patch was not accepted/applied (http://wiki.postgresql.org/wiki/CommitFest_2008-05 ) "waiting on the author" and mentioning these objections:- "Another question: this asm declaration ignores the advice given at lines 89-107 of s_lock.h, both cosmetic and substantive." Over 15 months hence, there does not seem to be any communication on this matter between the patch's author and the 'patch-committers' of the Postgresql community. Accordingly without wishing to be presumptuous the above advice is followed and the edited snippet for patching the file (~/include/server/storage/s_lock.h ) is submitted below:- ################### Nobuhiro Iwamatsu <iwamatsu(at)nigauri(dot)org> +#if defined(__sh__) /* Renesas SuperH */ +#define HAS_TEST_AND_SET + +typedef unsigned char slock_t; + +#define TAS(lock) tas(lock) + +static __inline__ int +tas(volatile slock_t *lock) +{ + register slock_t _res = 1; + + __asm__ __volatile__( + " tas.b @%1\n\t \n" + " movt %0\n\t \n" + " xor #1,%0 \n" +: "=r"(_res), "+m"(*lock) +: "r"(lock) +: "t","memory"); + return (int) _res; +} + +#endif /* __sh__ */ ################## I hope if the minor changes answer the queries the patch is attributed to the original author Nobuhiro Iwamatsu; my interest extends only to see Postgresql running on superH-based machines as soon as possible. Feedback will be much appreciated Yours sincerely SibuXolo -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
