From aa4878589c57acdee9f189b67f1dc55c1283fa16 Mon Sep 17 00:00:00 2001 From: nobu Date: Thu, 8 Jul 2004 10:27:23 +0000 Subject: * configure.in (rb_cv_stack_end_address): detect stack end address variable supplied by system. [ruby-core:03115] * gc.c (Init_stack): use system provided address if possible. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@6600 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- gc.c | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-) (limited to 'gc.c') diff --git a/gc.c b/gc.c index c1f761f5ef..bcdf693307 100644 --- a/gc.c +++ b/gc.c @@ -44,6 +44,10 @@ extern unsigned long __libc_ia64_register_backing_store_base; #endif #endif +#if defined _WIN32 || defined __CYGWIN__ +#include +#endif + void re_free_registers _((struct re_registers*)); int rb_io_fptr_finalize _((struct OpenFile*)); @@ -1408,9 +1412,16 @@ void Init_stack(addr) VALUE *addr; { -#if defined(__human68k__) - extern void *_SEND; - rb_gc_stack_start = _SEND; +#if defined(_WIN32) || defined(__CYGWIN__) + MEMORY_BASIC_INFORMATION m; + memset(&m, 0, sizeof(m)); + VirtualQuery(&m, &m, sizeof(m)); + rb_gc_stack_start = + STACK_UPPER((VALUE *)&m, (VALUE *)m.BaseAddress, + (VALUE *)((char *)m.BaseAddress + m.RegionSize) - 1); +#elif defined(STACK_END_ADDRESS) + extern void *STACK_END_ADDRESS; + rb_gc_stack_start = STACK_END_ADDRESS; #else if (!addr) addr = (VALUE *)&addr; STACK_UPPER(&addr, addr, ++addr); -- cgit v1.2.3