diff options
Diffstat (limited to 'gc/doc/README.win32')
| -rw-r--r-- | gc/doc/README.win32 | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/gc/doc/README.win32 b/gc/doc/README.win32 index b1a6ec5..dcccec3 100644 --- a/gc/doc/README.win32 +++ b/gc/doc/README.win32 @@ -21,6 +21,13 @@ registrations are ignored, but not terribly quickly.) pointers. And the VirtualQuery call has different semantics under the two systems, and under different versions of win32s.) +Win32 applications compiled with some flavor of gcc currently behave +like win32s applications, in that dynamic library data segments are +not scanned. (Gcc does not directly support Microsoft's "structured +exception handling". It turns out that use of this feature is +unavoidable if you scan arbirtray memory segments obtained from +VirtualQuery.) + The collector test program "gctest" is linked as a GUI application, but does not open any windows. Its output appears in the file "gc.log". It may be started from the file manager. The hour glass @@ -50,7 +57,8 @@ This appears to cause problems under Windows NT and Windows 2000 (but not Windows 95/98) if the memory is later passed to CreateDIBitmap. To work around this problem, build the collector with -DUSE_GLOBAL_ALLOC. This is currently incompatible with -DUSE_MUNMAP. (Thanks to Jonathan -Clark for tracking this down.) +Clark for tracking this down. There's some chance this may be fixed +in 6.1alpha4, since we now separate heap sections with an unused page.) For Microsoft development tools, rename NT_MAKEFILE as MAKEFILE. (Make sure that the CPU environment variable is defined @@ -64,7 +72,7 @@ absence of thread support). For GNU-win32, use the regular makefile, possibly after uncommenting the line "include Makefile.DLLs". The latter should be necessary only if you want to package the collector as a DLL. The GNU-win32 port is -believed to work only for b18, not b19, probably dues to linker changes +believed to work only for b18, not b19, probably due to linker changes in b19. This is probably fixable with a different definition of DATASTART and DATAEND in gcconfig.h. |