On Linux, /proc/version also displays the username of the kernel
compiler and the version of gcc used to compile[1]. This patch does the
same for Cygwin:
$ cat /proc/version
CYGWIN_NT-6.1-WOW64 version 1.7.10(0.238/5/3) (Yaakov@YAAKOV04) (gcc
version 4.5.2 (GCC) ) 2011-03-30 18:56
Patches for winsup/cygwin and winsup/doc attached.
Yaakov
[1]
http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Deployment_Guide/s2-proc-version.html
2011-04-03 Yaakov Selkowitz
* new-features.sgml (ov-new1.7.10): Document additional information
in /proc/version.
Index: new-features.sgml
===
RCS file: /cvs/src/src/winsup/doc/new-features.sgml,v
retrieving revision 1.71
diff -u -r1.71 new-features.sgml
--- new-features.sgml 1 Apr 2011 19:49:16 - 1.71
+++ new-features.sgml 3 Apr 2011 23:55:49 -
@@ -20,6 +20,15 @@
shared memory.
+
+/proc/version now shows the username of whomever compiled the Cygwin DLL
+as well as the version of GCC used when compiling.
+
+
2011-04-03 Yaakov Selkowitz
* Makefile.in (fhandler_proc_CFLAGS): Define USERNAME, HOSTNAME,
and GCC_VERSION.
* fhandler_proc.cc (format_proc_version): Add build machine and GCC
version information as on Linux.
Index: Makefile.in
===
RCS file: /cvs/src/src/winsup/cygwin/Makefile.in,v
retrieving revision 1.243
diff -u -r1.243 Makefile.in
--- Makefile.in 1 Apr 2011 19:48:19 - 1.243
+++ Makefile.in 3 Apr 2011 23:38:41 -
@@ -287,6 +287,9 @@
uinfo_CFLAGS:=-fomit-frame-pointer
endif
+fhandler_proc_CFLAGS+=-DUSERNAME="\"$(USER)\"" -DHOSTNAME="\"$(HOSTNAME)\""
+fhandler_proc_CFLAGS+=-DGCC_VERSION="\"`$(CC) -v 2>&1 | tail -n 1`\""
+
_cygwin_crt0_common_STDINCFLAGS:=yes
libstdcxx_wrapper_STDINCFLAGS:=yes
cxx_STDINCFLAGS:=yes
Index: fhandler_proc.cc
===
RCS file: /cvs/src/src/winsup/cygwin/fhandler_proc.cc,v
retrieving revision 1.98
diff -u -r1.98 fhandler_proc.cc
--- fhandler_proc.cc 2 Apr 2011 11:32:55 - 1.98
+++ fhandler_proc.cc 3 Apr 2011 23:38:41 -
@@ -361,15 +361,19 @@
static _off64_t
format_proc_version (void *, char *&destbuf)
{
+ tmp_pathbuf tp;
+ char *buf = tp.c_get ();
+ char *bufptr = buf;
struct utsname uts_name;
uname (&uts_name);
- destbuf = (char *) crealloc_abort (destbuf, strlen (uts_name.sysname)
- + strlen (uts_name.release)
- + strlen (uts_name.version)
- + 4);
- return __small_sprintf (destbuf, "%s %s %s\n",
- uts_name.sysname, uts_name.release, uts_name.version);
+ bufptr += __small_sprintf (bufptr, "%s version %s (%s@%s) (%s) %s\n",
+ uts_name.sysname, uts_name.release, USERNAME, HOSTNAME,
+ GCC_VERSION, uts_name.version);
+
+ destbuf = (char *) crealloc_abort (destbuf, bufptr - buf);
+ memcpy (destbuf, buf, bufptr - buf);
+ return bufptr - buf;
}
static _off64_t
