Date: Sun, 27 Sep 1998 12:59:42 +1000 From: David Dawes <dawes@rf900.physics.usyd.edu.au> To: current@FreeBSD.ORG Subject: imake autodetecting the binary format Message-ID: <19980927125942.Y22169@rf900.physics.usyd.edu.au>
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I'm planning to add the patch included below to imake so that it can
auto-detect the binary format at runtime. Together with this, the
following would be added to FreeBSD.cf:
#ifndef UseElfFormat
#define UseElfFormat DefaultToElfFormat
#endif
If anyone sees any problems with this, let me know. I don't need to
hear comments about how gross this might appear to be. Also, I don't think
calling getobjformat() is an option.
David
--
*** imake.c 1998/03/01 00:34:54 3.13.2.16
--- xc/config/imake/imake.c 1998/09/27 02:50:27
***************
*** 968,973 ****
--- 968,1000 ----
}
#endif
+ #ifdef __FreeBSD__
+ static void
+ get_binary_format(FILE *inFile)
+ {
+ int mib[2];
+ size_t len;
+ int osrel = 0;
+ FILE *objprog = NULL;
+ int iself = 0;
+ char buf[10];
+
+ mib[0] = CTL_KERN;
+ mib[1] = KERN_OSRELDATE;
+ len = sizeof(osrel);
+ sysctl(mib, 2, &osrel, &len, NULL, 0);
+ if (osrel >= 300004 &&
+ (objprog = popen("objformat", "r")) != NULL &&
+ fgets(buf, sizeof(buf), objprog) != NULL &&
+ strncmp(buf, "elf", 3) == 0)
+ iself = 1;
+ if (objprog)
+ pclose(objprog);
+
+ fprintf(inFile, "#define DefaultToElfFormat %s\n", iself ? "YES" : "NO");
+ }
+ #endif
+
#ifndef PATH_MAX
#define PATH_MAX 1024
#endif
***************
*** 1074,1079 ****
--- 1101,1109 ----
get_ld_version(inFile);
#endif
get_gcc_incdir(inFile);
+ #ifdef __FreeBSD__
+ get_binary_format(inFile);
+ #endif
#endif /* WIN32 */
return FALSE;
}
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