diff options
| author | Ranjit Mathew <rmathew@gcc.gnu.org> | 2006-06-20 17:10:19 +0000 |
|---|---|---|
| committer | Ranjit Mathew <rmathew@gcc.gnu.org> | 2006-06-20 17:10:19 +0000 |
| commit | 971774e4385448741f89755baf8e20e145d9e964 (patch) | |
| tree | f5f09bc8de3372861139eacf0b8c5d60b274c132 /boehm-gc | |
| parent | 5a6ccafd7d4899ee7942a5f3be359a249c1273ae (diff) | |
| download | gcc-971774e4385448741f89755baf8e20e145d9e964.zip gcc-971774e4385448741f89755baf8e20e145d9e964.tar.gz gcc-971774e4385448741f89755baf8e20e145d9e964.tar.bz2 | |
Backport Windows 9x/ME VirtualQuery() fix from GC 6.7.
* os_dep.c (GC_wnt): Define.
(GC_init_win32): Set GC_wnt.
* dyn_load.c (GC_register_dynamic_libraries): Consider MEM_PRIVATE
sections also on Windows 9x/ME.
From-SVN: r114818
Diffstat (limited to 'boehm-gc')
| -rw-r--r-- | boehm-gc/ChangeLog | 8 | ||||
| -rw-r--r-- | boehm-gc/dyn_load.c | 10 | ||||
| -rw-r--r-- | boehm-gc/os_dep.c | 5 |
3 files changed, 21 insertions, 2 deletions
diff --git a/boehm-gc/ChangeLog b/boehm-gc/ChangeLog index cdb7f7c..ca5f33c 100644 --- a/boehm-gc/ChangeLog +++ b/boehm-gc/ChangeLog @@ -1,3 +1,11 @@ +2006-06-20 Ranjit Mathew <rmathew@gcc.gnu.org> + + Backport Windows 9x/ME VirtualQuery() fix from GC 6.7. + * os_dep.c (GC_wnt): Define. + (GC_init_win32): Set GC_wnt. + * dyn_load.c (GC_register_dynamic_libraries): Consider MEM_PRIVATE + sections also on Windows 9x/ME. + 2006-06-02 Geoffrey Keating <geoffk@apple.com> * configure.ac: Define HAS_PPC_THREAD_STATE_R0, diff --git a/boehm-gc/dyn_load.c b/boehm-gc/dyn_load.c index 94e6609..3485474 100644 --- a/boehm-gc/dyn_load.c +++ b/boehm-gc/dyn_load.c @@ -860,6 +860,9 @@ void GC_register_dynamic_libraries() } # endif /* DEBUG_VIRTUALQUERY */ + extern GC_bool GC_wnt; /* Is Windows NT derivative. */ + /* Defined and set in os_dep.c. */ + void GC_register_dynamic_libraries() { MEMORY_BASIC_INFORMATION buf; @@ -901,7 +904,12 @@ void GC_register_dynamic_libraries() * !is_frame_buffer(p, buf.RegionSize, buf.Type) * instead of just checking for MEM_IMAGE. * If something breaks, change it back. */ - && buf.Type == MEM_IMAGE) { + /* There is some evidence that we cannot always + * ignore MEM_PRIVATE sections under Windows ME + * and predecessors. Hence we now also check for + * that case. */ + && (buf.Type == MEM_IMAGE || + !GC_wnt && buf.Type == MEM_PRIVATE)) { # ifdef DEBUG_VIRTUALQUERY GC_dump_meminfo(&buf); # endif diff --git a/boehm-gc/os_dep.c b/boehm-gc/os_dep.c index fb50a45..13692d9 100644 --- a/boehm-gc/os_dep.c +++ b/boehm-gc/os_dep.c @@ -1181,12 +1181,15 @@ void GC_register_data_segments() /* This used to be set for gcc, to avoid dealing with */ /* the structured exception handling issues. But we now have */ /* assembly code to do that right. */ + GC_bool GC_wnt = FALSE; + /* This is a Windows NT derivative, i.e. NT, W2K, XP or later. */ void GC_init_win32() { /* if we're running under win32s, assume that no DLLs will be loaded */ DWORD v = GetVersion(); - GC_no_win32_dlls |= ((v & 0x80000000) && (v & 0xff) <= 3); + GC_wnt = !(v & 0x80000000); + GC_no_win32_dlls |= ((!GC_wnt) && (v & 0xff) <= 3); } /* Return the smallest address a such that VirtualQuery */ |