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| author | Jan Vorlicek <janvorli@microsoft.com> | 2015-03-14 01:06:14 +0100 |
|---|---|---|
| committer | Jan Vorlicek <janvorli@microsoft.com> | 2015-03-16 23:08:48 +0100 |
| commit | 0564f1771d87258e8ceba425e1e25efaea0bacc1 (patch) | |
| tree | 4b79c178e48b87fdaf3b0cf6bb2222737c1a99fa /src/pal/src/exception/seh-unwind.cpp | |
| parent | 896d3d1c3d192a889410311cd3a5dd879d09dc8d (diff) | |
| download | coreclr-0564f1771d87258e8ceba425e1e25efaea0bacc1.tar.gz coreclr-0564f1771d87258e8ceba425e1e25efaea0bacc1.tar.bz2 coreclr-0564f1771d87258e8ceba425e1e25efaea0bacc1.zip | |
Make GC work without context pointers on OSX
On OSX, the libunwind doesn't have support for getting context pointers.
This change modifies the way GC handles object pointers in registers
so that when the context pointer cannot be obtained, the object is
pinned so that GC doesn't move it and thus doesn't need to update
the object reference in the register value stored on the stack.
Diffstat (limited to 'src/pal/src/exception/seh-unwind.cpp')
| -rw-r--r-- | src/pal/src/exception/seh-unwind.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/pal/src/exception/seh-unwind.cpp b/src/pal/src/exception/seh-unwind.cpp index 98c7f0b5c2..6a547979b1 100644 --- a/src/pal/src/exception/seh-unwind.cpp +++ b/src/pal/src/exception/seh-unwind.cpp @@ -91,7 +91,8 @@ static void UnwindContextToWinContext(unw_cursor_t *cursor, CONTEXT *winContext) static void GetContextPointer(unw_cursor_t *cursor, unw_context_t *unwContext, int reg, PDWORD64 *contextPointer) { #if defined(__APPLE__) - //OSXTODO + // Returning NULL indicates that we don't have context pointers available + *contextPointer = NULL; #else unw_save_loc_t saveLoc; unw_get_save_loc(cursor, reg, &saveLoc); |