* Re: Undefined symbol _start first referenced in file .libs/libguile_la-g
@ 2010-04-17 21:40 Marion Hakanson
2010-08-29 19:21 ` Andy Wingo
0 siblings, 1 reply; 2+ messages in thread
From: Marion Hakanson @ 2010-04-17 21:40 UTC (permalink / raw)
To: bug-guile
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Apologies for reviving an old topic. There was no resolution posted,
and the same problem is happening today with guile-1.8.7 on Solaris-10
x86 platform, compiling with Sun Studio 12, all patches current as of
early March-2010.
The earlier response, archived here, gave a clue to solution:
http://lists.gnu.org/archive/html/bug-guile/2009-03/msg00009.html
I was able to get past the problem by updating gc_os_dep.c's "#ifdef
SUNOS5" sections with the same sections lifted out of a more recent
Boehme GC release (gc-6.8), file gcconfig.h.
Regards,
Marion
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[-- Type: text/x-patch, Size: 3397 bytes --]
--- libguile/gc_os_dep.c.1 Sat Apr 10 18:56:24 2010
+++ libguile/gc_os_dep.c Sat Apr 17 13:35:43 2010
@@ -711,13 +711,17 @@
extern int etext;
# ifdef SUNOS5
# define OS_TYPE "SUNOS5"
- extern int _etext;
- extern int _end;
- extern char * GC_SysVGetDataStart();
-# define DATASTART (ptr_t)GC_SysVGetDataStart(0x10000, &_etext)
-# define DATAEND (&_end)
-# ifndef USE_MMAP
+ extern int _etext[];
+ extern int _end[];
+ extern ptr_t GC_SysVGetDataStart();
+# define DATASTART GC_SysVGetDataStart(0x10000, _etext)
+# define DATAEND (_end)
+# if !defined(USE_MMAP) && defined(REDIRECT_MALLOC)
# define USE_MMAP
+ /* Otherwise we now use calloc. Mmap may result in the */
+ /* heap interleaved with thread stacks, which can result in */
+ /* excessive blacklisting. Sbrk is unusable since it */
+ /* doesn't interact correctly with the system malloc. */
# endif
# ifdef USE_MMAP
# define HEAP_START (ptr_t)0x40000000
@@ -725,10 +729,18 @@
# define HEAP_START DATAEND
# endif
# define PROC_VDB
-/* HEURISTIC1 reportedly no longer works under 2.7. Thus we */
-/* switched to HEURISTIC2, eventhough it creates some debugging */
-/* issues. */
-# define HEURISTIC2
+/* HEURISTIC1 reportedly no longer works under 2.7. */
+/* HEURISTIC2 probably works, but this appears to be preferable. */
+/* Apparently USRSTACK is defined to be USERLIMIT, but in some */
+/* installations that's undefined. We work around this with a */
+/* gross hack: */
+# include <sys/vmparam.h>
+# ifdef USERLIMIT
+ /* This should work everywhere, but doesn't. */
+# define STACKBOTTOM USRSTACK
+# else
+# define HEURISTIC2
+# endif
# include <unistd.h>
# define GETPAGESIZE() sysconf(_SC_PAGESIZE)
/* getpagesize() appeared to be missing from at least one */
@@ -802,15 +814,29 @@
# endif
# ifdef SUNOS5
# define OS_TYPE "SUNOS5"
- extern int etext, _start;
- extern char * GC_SysVGetDataStart();
-# define DATASTART GC_SysVGetDataStart(0x1000, &etext)
-# define STACKBOTTOM ((ptr_t)(&_start))
-/** At least in Solaris 2.5, PROC_VDB gives wrong values for dirty bits. */
-/*# define PROC_VDB*/
+ extern int _etext[], _end[];
+ extern ptr_t GC_SysVGetDataStart();
+# define DATASTART GC_SysVGetDataStart(0x1000, _etext)
+# define DATAEND (_end)
+/* # define STACKBOTTOM ((ptr_t)(_start)) worked through 2.7, */
+/* but reportedly breaks under 2.8. It appears that the stack */
+/* base is a property of the executable, so this should not break */
+/* old executables. */
+/* HEURISTIC2 probably works, but this appears to be preferable. */
+# include <sys/vm.h>
+# define STACKBOTTOM USRSTACK
+/* At least in Solaris 2.5, PROC_VDB gives wrong values for dirty bits. */
+/* It appears to be fixed in 2.8 and 2.9. */
+# ifdef SOLARIS25_PROC_VDB_BUG_FIXED
+# define PROC_VDB
+# endif
# define DYNAMIC_LOADING
-# ifndef USE_MMAP
+# if !defined(USE_MMAP) && defined(REDIRECT_MALLOC)
# define USE_MMAP
+ /* Otherwise we now use calloc. Mmap may result in the */
+ /* heap interleaved with thread stacks, which can result in */
+ /* excessive blacklisting. Sbrk is unusable since it */
+ /* doesn't interact correctly with the system malloc. */
# endif
# ifdef USE_MMAP
# define HEAP_START (ptr_t)0x40000000
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2010-04-17 21:40 Undefined symbol _start first referenced in file .libs/libguile_la-g Marion Hakanson
2010-08-29 19:21 ` Andy Wingo
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