From: Waldemar Kozaczuk <[email protected]>
Committer: Waldemar Kozaczuk <[email protected]>
Branch: master

libc: replace include/api/aarch64/bits/mman.h with a symlink to musl copy

This file and its aarch64 equivalent differs only to musl copies by
extra MAP_UNINITIALIZED macro. In order to drop this header
we define MAP_UNINITIALIZED in libc/mman.cc.

Signed-off-by: Waldemar Kozaczuk <[email protected]>

---
diff --git a/include/api/x64/bits/mman.h b/include/api/x64/bits/mman.h
--- a/include/api/x64/bits/mman.h
+++ b/include/api/x64/bits/mman.h
@@ -1,63 +0,0 @@
-#define MAP_FAILED ((void *) -1)
-
-#define        PROT_NONE      0
-#define        PROT_READ      1
-#define        PROT_WRITE     2
-#define        PROT_EXEC      4
-#define PROT_GROWSDOWN  0x01000000
-#define PROT_GROWSUP    0x02000000
-
-#define        MAP_SHARED     0x01
-#define        MAP_PRIVATE    0x02
-#define        MAP_FIXED      0x10
-
-#define MAP_TYPE       0x0f
-#define MAP_FILE       0x00
-#define MAP_ANON       0x20
-#define MAP_ANONYMOUS  MAP_ANON
-#define MAP_32BIT      0x40
-#define MAP_NORESERVE  0x4000
-#define MAP_GROWSDOWN  0x0100
-#define MAP_DENYWRITE  0x0800
-#define MAP_EXECUTABLE 0x1000
-#define MAP_LOCKED     0x2000
-#define MAP_POPULATE   0x8000
-#define MAP_NONBLOCK   0x10000
-#define MAP_STACK      0x20000
-#define MAP_HUGETLB    0x40000
-#define MAP_UNINITIALIZED 0x4000000
-
-#define POSIX_MADV_NORMAL       0
-#define POSIX_MADV_RANDOM       1
-#define POSIX_MADV_SEQUENTIAL   2
-#define POSIX_MADV_WILLNEED     3
-#define POSIX_MADV_DONTNEED     0
-
-#define MS_ASYNC        1
-#define MS_INVALIDATE   2
-#define MS_SYNC         4
-
-#define MCL_CURRENT     1
-#define MCL_FUTURE      2
-
-#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
-#define MADV_NORMAL      0
-#define MADV_RANDOM      1
-#define MADV_SEQUENTIAL  2
-#define MADV_WILLNEED    3
-#define MADV_DONTNEED    4
-#define MADV_REMOVE      9
-#define MADV_DONTFORK    10
-#define MADV_DOFORK      11
-#define MADV_MERGEABLE   12
-#define MADV_UNMERGEABLE 13
-#define MADV_HUGEPAGE    14
-#define MADV_NOHUGEPAGE  15
-#define MADV_DONTDUMP    16
-#define MADV_DODUMP      17
-#define MADV_HWPOISON    100
-#define MADV_SOFT_OFFLINE 101
-
-#define MREMAP_MAYMOVE  1
-#define MREMAP_FIXED    2
-#endif
diff --git a/include/api/x64/bits/mman.h b/include/api/x64/bits/mman.h
--- a/include/api/x64/bits/mman.h
+++ b/include/api/x64/bits/mman.h
@@ -0,0 +1 @@
+../../../../musl/arch/x86_64/bits/mman.h
\ No newline at end of file
diff --git a/libc/mman.cc b/libc/mman.cc
--- a/libc/mman.cc
+++ b/libc/mman.cc
@@ -16,6 +16,10 @@
 #include "libc/libc.hh"
 #include <safe-ptr.hh>
 
+#ifndef MAP_UNINITIALIZED
+#define MAP_UNINITIALIZED 0x4000000
+#endif
+
 TRACEPOINT(trace_memory_mmap, "addr=%p, length=%d, prot=%d, flags=%d, fd=%d, 
offset=%d", void *, size_t, int, int, int, off_t);
 TRACEPOINT(trace_memory_mmap_err, "%d", int);
 TRACEPOINT(trace_memory_mmap_ret, "%p", void *);

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