Reduce header complexity

- Remove most __ASSEMBLER__ __LINKER__ ifdefs
- Rename libc/intrin/bits.h to libc/serialize.h
- Block pthread cancelation in fchmodat() polyfill
- Remove `clang-format off` statements in third_party

third_party/argon2/argon2.c

@@ -26,7 +26,6 @@ asm(".ident\t\"\\n\\n\
 argon2 (CC0 or Apache2)\\n\
 Copyright 2016 Daniel Dinu, Dmitry Khovratovich\\n\
 Copyright 2016 Jean-Philippe Aumasson, Samuel Neves\"");
-/* clang-format off */
 
 /**
  * Function that gives the string representation of an argon2_type.

third_party/argon2/argon2.h

@@ -5,7 +5,6 @@
 
 #define ARGON2_NO_THREADS
 
-#if !(__ASSEMBLER__ + __LINKER__ + 0)
 COSMOPOLITAN_C_START_
 
 /*
@@ -210,5 +209,4 @@ size_t argon2_encodedlen(uint32_t, uint32_t, uint32_t, uint32_t, uint32_t,
                          argon2_type);
 
 COSMOPOLITAN_C_END_
-#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
 #endif /* COSMOPOLITAN_THIRD_PARTY_ARGON2_ARGON2_H_ */

third_party/argon2/blake2-impl.h

@@ -1,7 +1,6 @@
 #ifndef PORTABLE_BLAKE2_IMPL_H
 #define PORTABLE_BLAKE2_IMPL_H
 #include "libc/str/str.h"
-/* clang-format off */
 
 static inline uint64_t load64(const void *src) {
 #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__

third_party/argon2/blake2.h

@@ -1,7 +1,6 @@
 #ifndef COSMOPOLITAN_THIRD_PARTY_ARGON2_BLAKE2_H_
 #define COSMOPOLITAN_THIRD_PARTY_ARGON2_BLAKE2_H_
 #include "third_party/argon2/argon2.h"
-#if !(__ASSEMBLER__ + __LINKER__ + 0)
 COSMOPOLITAN_C_START_
 
 enum blake2b_constant {
@@ -48,5 +47,4 @@ int blake2b(void *, size_t, const void *, size_t, const void *, size_t);
 int blake2b_long(void *, size_t, const void *, size_t);
 
 COSMOPOLITAN_C_END_
-#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
 #endif /* COSMOPOLITAN_THIRD_PARTY_ARGON2_BLAKE2_H_ */

third_party/argon2/blake2b.c

@@ -15,12 +15,11 @@
 │ - Apache 2.0        : https://www.apache.org/licenses/LICENSE-2.0            │
 │                                                                              │
 ╚─────────────────────────────────────────────────────────────────────────────*/
-#include "libc/intrin/bits.h"
+#include "libc/serialize.h"
 #include "libc/limits.h"
 #include "third_party/argon2/blake2-impl.h"
 #include "third_party/argon2/blake2.h"
 #include "third_party/argon2/core.h"
-/* clang-format off */
 
 asm(".ident\t\"\\n\\n\
 argon2 (CC0 or Apache2)\\n\

third_party/argon2/blamka-round-ref.h

@@ -2,7 +2,6 @@
 #define BLAKE_ROUND_MKA_H
 #include "third_party/argon2/blake2-impl.h"
 #include "third_party/argon2/blake2.h"
-/* clang-format off */
 
 /* designed by the Lyra PHC team */
 static inline uint64_t fBlaMka(uint64_t x, uint64_t y) {

third_party/argon2/core.c

@@ -24,7 +24,6 @@ asm(".ident\t\"\\n\\n\
 argon2 (CC0 or Apache2)\\n\
 Copyright 2016 Daniel Dinu, Dmitry Khovratovich\\n\
 Copyright 2016 Jean-Philippe Aumasson, Samuel Neves\"");
-/* clang-format off */
 
 int FLAG_clear_internal_memory = 1;
 

third_party/argon2/core.h

@@ -1,7 +1,6 @@
 #ifndef COSMOPOLITAN_THIRD_PARTY_ARGON2_CORE_H_
 #define COSMOPOLITAN_THIRD_PARTY_ARGON2_CORE_H_
 #include "third_party/argon2/argon2.h"
-#if !(__ASSEMBLER__ + __LINKER__ + 0)
 COSMOPOLITAN_C_START_
 
 enum argon2_core_constants {
@@ -83,5 +82,4 @@ void fill_segment(const argon2_instance_t *, argon2_position_t);
 int fill_memory_blocks(argon2_instance_t *);
 
 COSMOPOLITAN_C_END_
-#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
 #endif /* COSMOPOLITAN_THIRD_PARTY_ARGON2_CORE_H_ */

third_party/argon2/encoding.c

@@ -25,7 +25,6 @@ asm(".ident\t\"\\n\\n\
 argon2 (CC0 or Apache2)\\n\
 Copyright 2016 Daniel Dinu, Dmitry Khovratovich\\n\
 Copyright 2016 Jean-Philippe Aumasson, Samuel Neves\"");
-/* clang-format off */
 
 /*
  * Example code for a decoder and encoder of "hash strings", with Argon2

third_party/argon2/encoding.h

@@ -1,7 +1,6 @@
 #ifndef COSMOPOLITAN_THIRD_PARTY_ARGON2_ENCODING_H_
 #define COSMOPOLITAN_THIRD_PARTY_ARGON2_ENCODING_H_
 #include "third_party/argon2/argon2.h"
-#if !(__ASSEMBLER__ + __LINKER__ + 0)
 COSMOPOLITAN_C_START_
 
 #define ARGON2_MAX_DECODED_LANES    UINT32_C(255)
@@ -14,5 +13,4 @@ size_t b64len(uint32_t);
 size_t numlen(uint32_t);
 
 COSMOPOLITAN_C_END_
-#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
 #endif /* COSMOPOLITAN_THIRD_PARTY_ARGON2_ENCODING_H_ */

third_party/argon2/ref.c

@@ -26,7 +26,6 @@ asm(".ident\t\"\\n\\n\
 argon2 (CC0 or Apache2)\\n\
 Copyright 2016 Daniel Dinu, Dmitry Khovratovich\\n\
 Copyright 2016 Jean-Philippe Aumasson, Samuel Neves\"");
-/* clang-format off */
 
 /*
  * Argon2 reference source code package - reference C implementations