RE: Porting git to HP NonStop

From: Joachim Schmitz [mailto:jojo@schmitz-digital.de]
Sent: Friday, August 10, 2012 7:33 PM
To: 'Shawn Pearce'
Cc: 'git@vger.kernel.org'; 'rsbecker@nexbridge.com'
Subject: RE: Porting git to HP NonStop

quoted

From: Shawn Pearce [mailto:spearce@spearce.org]
Sent: Friday, August 10, 2012 6:28 PM
To: Joachim Schmitz
Cc: git@vger.kernel.org; rsbecker@nexbridge.com
Subject: Re: Porting git to HP NonStop

On Fri, Aug 10, 2012 at 8:04 AM, Joachim Schmitz
[off-list ref]
wrote:

<snip>

quoted

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- HP NonStop doesn't have stat.st_blocks, this is used in

builtin/count-objects.c

quoted

around line 45, not sure yet how to fix that.

IIRC the block count is only used to give the user some notion of how
much disk was wasted by the repository. You could hack a macro that
redefines this as st_size.

OK, thanks, will try that.

Setting "NO_ST_BLOCKS_IN_STRUCT_STAT = YesPlease" in Makefile helps, no need
for further hacking ;-).

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- HP NonStop doesn't have stat.st_?time.nsec, there are several
places

what an

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"#ifdef USE_NSEC" is missing, I can provide a diff if needed
(offending
files: builtin/fetch-pack.c and read-cache.c).

I think this would be appreciated by anyone else that has a similar
problem where the platform lacks nsec.

Will do.

OK, here we go:

/usr/local/bin/diff -EBbu ./builtin/fetch-pack.c.orig ./builtin/fetch-pack.c

--- ./builtin/fetch-pack.c.orig 2012-07-30 15:50:38 -0500
+++ ./builtin/fetch-pack.c      2012-08-10 01:50:28 -0500

@@ -1096,7 +1096,9 @@
                int fd;

                mtime.sec = st.st_mtime;
+#ifdef USE_NSEC
                mtime.nsec = ST_MTIME_NSEC(st);
+#endif
                if (stat(shallow, &st)) {
                        if (mtime.sec)
                                die("shallow file was removed during

fetch");
/usr/local/bin/diff -EBbu ./read-cache.c.orig ./read-cache.c

--- ./read-cache.c.orig 2012-07-30 15:50:38 -0500
+++ ./read-cache.c      2012-08-09 10:57:57 -0500

@@ -72,8 +72,10 @@
 {
        ce->ce_ctime.sec = (unsigned int)st->st_ctime;
        ce->ce_mtime.sec = (unsigned int)st->st_mtime;
+#ifdef USE_NSEC
        ce->ce_ctime.nsec = ST_CTIME_NSEC(*st);
        ce->ce_mtime.nsec = ST_MTIME_NSEC(*st);
+#endif
        ce->ce_dev = st->st_dev;
        ce->ce_ino = st->st_ino;
        ce->ce_uid = st->st_uid;

@@ -1465,7 +1467,9 @@
        }
        strbuf_release(&previous_name_buf);
        istate->timestamp.sec = st.st_mtime;
+#ifdef USE_NSEC
        istate->timestamp.nsec = ST_MTIME_NSEC(st);
+#endif

        while (src_offset <= mmap_size - 20 - 8) {
                /* After an array of active_nr index entries,

@@ -1821,7 +1825,9 @@
        if (ce_flush(&c, newfd) || fstat(newfd, &st))
                return -1;
        istate->timestamp.sec = (unsigned int)st.st_mtime;
+#ifdef USE_NSEC
        istate->timestamp.nsec = ST_MTIME_NSEC(st);
+#endif
        return 0;
 }

Hope this helps?

Could you also consider adding the following:

/usr/local/bin/diff -EBbu ./git-compat-util.h.orig ./git-compat-util.h

--- ./git-compat-util.h.orig    2012-07-30 15:50:38 -0500
+++ ./git-compat-util.h 2012-08-10 09:59:56 -0500

@@ -74,7 +74,8 @@
 # define _XOPEN_SOURCE 500
 # endif
 #elif !defined(__APPLE__) && !defined(__FreeBSD__) && !defined(__USLC__) &&

\
-      !defined(_M_UNIX) && !defined(__sgi) && !defined(__DragonFly__)
+      !defined(_M_UNIX) && !defined(__sgi) && !defined(__DragonFly__) && \
+      !defined(__TANDEM)
 #define _XOPEN_SOURCE 600 /* glibc2 and AIX 5.3L need 500, OpenBSD needs
600 for S_ISLNK() */
 #define _XOPEN_SOURCE_EXTENDED 1 /* AIX 5.3L needs this */
 #endif

@@ -98,6 +99,11 @@
 #include <stdlib.h>
 #include <stdarg.h>
 #include <string.h>
+#ifdef __TANDEM
+# include <strings.h> /* for strcasecmp() */
+  typedef long int intptr_t;
+  typedef unsigned long int uintptr_t;
+#endif
 #include <errno.h>
 #include <limits.h>
 #include <sys/param.h>

Bye, Jojo