The attached patch allows 'make' to complete on my OS X box, and passes
'make test'. It gets a segfault when running 'make perl6', at the point
where it runs 'pbc_to_exe perl6.pbc'. The segfault appears to be a
standard GC-style error attempting to access reclaimed memory, and not
related to symbol lookup. gdb reports:
Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_INVALID_ADDRESS at address: 0x0001d000
0x0100a79a in string_make_direct (interp=0x400440, buffer=0x5474 "",
len=467200, encoding=0x400920, charset=0x400ab0, flags=0) at
src/string.c:634
warning: Source file is more recent than executable.
634 real_exception(interp, NULL, UNIMPLEMENTED,
(gdb) bt
#0 0x0100a79a in string_make_direct (interp=0x400440, buffer=0x5474 "",
len=467200, encoding=0x400920, charset=0x400ab0, flags=0) at
src/string.c:634
#1 0x0100a6b9 in string_make (interp=0x400440, buffer=0x5474 "",
len=467200, charset_name=0x1245a24 "ascii", flags=0) at src/string.c:593
#2 0x010caff3 in PF_fetch_string (interp=0x400440, pf=0x413b80,
cursor=0x5c6348) at src/packfile/pf_items.c:552
#3 0x0105fa1c in shift_opcode_string (interp=0x400440, io=0x4139f0) at
src/pmc_freeze.c:744
#4 0x01024a6d in hash_thaw (interp=0x400440, hash=0x413cc0,
info=0xbfffed44) at src/hash.c:331
#5 0x01024d3b in parrot_hash_visit (interp=0x400440, hash=0x413cc0,
pinfo=0xbfffed44) at src/hash.c:408
#6 0x011a44bc in Parrot_Hash_visit (interp=0x400440, pmc=0x5dadc0,
info=0xbfffed44) at ./src/pmc/hash.pmc:1021
#7 0x01060d4e in visit_loop_todo_list (interp=0x400440,
current=0x5dadc0, info=0xbfffed44) at src/pmc_freeze.c:1432
#8 0x01061080 in run_thaw (interp=0x400440, image=0x5c6338,
what=VISIT_THAW_NORMAL) at src/pmc_freeze.c:1554
#9 0x010612d0 in Parrot_thaw (interp=0x400440, image=0x5c6338) at
src/pmc_freeze.c:1663
#10 0x01024319 in parrot_set_config_hash_interpreter (interp=0x400440)
at src/global_setup.c:83
#11 0x010244ff in init_world (interp=0x400440) at src/global_setup.c:140
#12 0x010160cb in Parrot_init (interp=0x400440) at src/embed.c:113
#13 0x0102bccb in make_interpreter (parent=0x0, flags=0) at
src/inter_create.c:172
#14 0x01016099 in Parrot_new (parent=0x0) at src/embed.c:74
#15 0x0000220b in main ()
But, I won't commit the patch until I have some confirmation on whether
the segfault happens without the patch on other platforms, or with the
patch on other darwin-based installs. At least I can apply the patch to
my working directories, so I'm not blocked by 'make' failing, and can
get work done.
Allison
Index: tools/dev/pbc_to_exe_gen.pl
===================================================================
--- tools/dev/pbc_to_exe_gen.pl (revision 25264)
+++ tools/dev/pbc_to_exe_gen.pl (working copy)
@@ -351,6 +351,11 @@
.local string link
link = ld
link .= ' '
+
+ unless osname == 'darwin' goto not_darwin
+ link .= '-undefined dynamic_lookup '
+ not_darwin:
+
link .= ld_out
link .= exefile
link .= ' '
