diff options
| author | Corinna Vinschen <corinna@vinschen.de> | 2022-10-26 22:26:37 +0300 |
|---|---|---|
| committer | Corinna Vinschen <corinna@vinschen.de> | 2022-10-28 17:26:53 +0300 |
| commit | 0508e11f88f73df500f91f75e0314c3592c0526b (patch) | |
| tree | b0476fd91f22460092f7c45417495f658ca09471 /winsup/cygwin/local_includes/memory_layout.h | |
| parent | 60675f1a7eb20d5948124cfb0795384a9361686a (diff) | |
Cygwin: memory_layout.h: fix comments
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
Diffstat (limited to 'winsup/cygwin/local_includes/memory_layout.h')
| -rw-r--r-- | winsup/cygwin/local_includes/memory_layout.h | 22 |
1 files changed, 3 insertions, 19 deletions
diff --git a/winsup/cygwin/local_includes/memory_layout.h b/winsup/cygwin/local_includes/memory_layout.h index 22e68b93e..18e7e4d69 100644 --- a/winsup/cygwin/local_includes/memory_layout.h +++ b/winsup/cygwin/local_includes/memory_layout.h @@ -7,24 +7,8 @@ This software is a copyrighted work licensed under the terms of the Cygwin license. Please consult the file "CYGWIN_LICENSE" for details. */ -/* We use fixed addresses outside the low 32 bit arena, which is exclusively - used by the OS now: - - The executable starts at 0x1:00400000L - - The Cygwin DLL starts at 0x1:80040000L - - Rebased DLLs are located from 0x2:00000000L up to 0x4:00000000L - - auto-image-based DLLs are located from 0x4:00000000L up to 0x6:00000000L - - Thread stacks are located from 0x6:00000000L up to 0x8:00000000L. - - So the heap starts at 0x8:00000000L. */ - - /* TODO: Make Cygwin work with ASLR. - - The executable starts at 0x1:00400000L - - Rebased non-ASLRed DLLs from 0x2:00000000L up to 0x4:00000000L - - auto-image-based non-ASLRed DLLs from 0x4:00000000L up to 0x6:00000000L - - Thread stacks are located from 0x6:00000000L up to 0x8:00000000L. - - cygheap from 0x8:00000000L up to 0xa:00000000L. - - So the heap starts at 0xa:00000000L. */ - -/* This is where the Cygwin executables are loaded to. */ +/* This is where Cygwin executables are loaded to, unless dynamicbase is + enabled in the PE/COFF header of the executable file. */ #define EXECUTABLE_ADDRESS 0x100400000UL /* Fixed address set by the linker. The Cygwin DLL will have this address set @@ -64,7 +48,7 @@ details. */ /* This is where the user heap starts. There's no defined end address. The user heap pontentially grows into the mmap arena. However, - the user heap grows upwar4ds and the mmap arena grows downwards, + the user heap grows upwards and the mmap arena grows downwards, so there's not much chance to meet unluckily. */ #define USERHEAP_START 0xa00000000UL |