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Rewrite Linux pledge() code so it can be a payload

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It's now possible to build our pledge() polyfill as a dynamic shared
object that can be injected into a glibc executable using LD_PRELOAD
This commit is contained in:
Justine Tunney 2022-08-08 11:41:08 -07:00
parent 7bd4179b9b
commit 0277d7d6e9
37 changed files with 1980 additions and 1600 deletions
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13
libc/sysv/consts/mfd.h
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@ -1,16 +1,7 @@
#ifndef COSMOPOLITAN_LIBC_SYSV_CONSTS_MFD_H_
#define COSMOPOLITAN_LIBC_SYSV_CONSTS_MFD_H_
#include "libc/runtime/symbolic.h"
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
extern const unsigned int MFD_CLOEXEC;
extern const unsigned int MFD_ALLOW_SEALING;
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#define MFD_CLOEXEC SYMBOLIC(MFD_CLOEXEC)
#define MFD_ALLOW_SEALING SYMBOLIC(MFD_ALLOW_SEALING)
#define MFD_CLOEXEC 1
#define MFD_ALLOW_SEALING 2
#endif /* COSMOPOLITAN_LIBC_SYSV_CONSTS_MFD_H_ */