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Implement more security stuff

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- Support deterministic stacks on OpenBSD
- Support OpenBSD system call origin verification
- Fix overrun by one in chibicc string token allocator
- Get all chibicc tests passing under Address Sanitizer
This commit is contained in:
Justine Tunney
2021-02-02 20:21:06 -08:00
parent cbfd4ccd1e
commit c843243322
56 changed files with 376 additions and 245 deletions
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7
libc/sysv/consts/map.h
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@@ -21,7 +21,6 @@ hidden extern const long MAP_NORESERVE;
hidden extern const long MAP_POPULATE;
hidden extern const long MAP_PRIVATE;
hidden extern const long MAP_SHARED;
hidden extern const long MAP_STACK;
hidden extern const long MAP_TYPE;
COSMOPOLITAN_C_END_
@@ -34,6 +33,7 @@ COSMOPOLITAN_C_END_
#define MAP_32BIT SYMBOLIC(MAP_32BIT)
#define MAP_ANONYMOUS SYMBOLIC(MAP_ANONYMOUS)
#define MAP_CONCEAL SYMBOLIC(MAP_CONCEAL)
#define MAP_DENYWRITE SYMBOLIC(MAP_DENYWRITE)
#define MAP_EXECUTABLE SYMBOLIC(MAP_EXECUTABLE)
#define MAP_GROWSDOWN SYMBOLIC(MAP_GROWSDOWN)
@@ -46,7 +46,8 @@ COSMOPOLITAN_C_END_
#define MAP_POPULATE SYMBOLIC(MAP_POPULATE)
#define MAP_TYPE SYMBOLIC(MAP_TYPE)
#define MAP_ANON MAP_ANONYMOUS
#define MAP_STACK MAP_GROWSDOWN
#define MAP_ANON MAP_ANONYMOUS
#define MAP_NOCORE MAP_CONCEAL
#define MAP_STACK MAP_GROWSDOWN
#endif /* COSMOPOLITAN_LIBC_SYSV_CONSTS_MAP_H_ */