diff options
Diffstat (limited to 'erts/emulator/beam/sys.h')
| -rw-r--r-- | erts/emulator/beam/sys.h | 67 |
1 files changed, 64 insertions, 3 deletions
diff --git a/erts/emulator/beam/sys.h b/erts/emulator/beam/sys.h index 1ffc7f5028..20b0571e43 100644 --- a/erts/emulator/beam/sys.h +++ b/erts/emulator/beam/sys.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1996-2020. All Rights Reserved. + * Copyright Ericsson AB 1996-2022. All Rights Reserved. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. @@ -105,6 +105,9 @@ #define ErtsInArea(ptr,start,nbytes) \ ((UWord)((char*)(ptr) - (char*)(start)) < (nbytes)) +#define ErtsInBetween(ptr,start,end) \ + ErtsInArea(ptr, start, (char*)(end) - (char*)(start)) + #define ErtsContainerStruct(ptr, type, member) \ ((type *)((char *)(1 ? (ptr) : &((type *)0)->member) - offsetof(type, member))) @@ -267,7 +270,7 @@ __decl_noreturn void __noreturn erl_assert_error(const char* expr, const char *f * static int test(){ return 0;} * GCC_DIAG_ON(unused-function) * - * These macros were orginally authored by Jonathan Wakely and has + * These macros were originally authored by Jonathan Wakely and has * been modified by Patrick Horgan. * * Source: http://dbp-consulting.com/tutorials/SuppressingGCCWarnings.html @@ -346,7 +349,7 @@ __decl_noreturn void __noreturn erl_assert_error(const char* expr, const char *f ** Eterm: A tagged erlang term (possibly 64 bits) ** BeamInstr: A beam code instruction unit, possibly larger than Eterm, not smaller. ** Uint: An unsigned integer exactly as large as an Eterm. -** Sint: A signed integer exactly as large as an eterm and therefor large +** Sint: A signed integer exactly as large as an eterm and therefore large ** enough to hold the return value of the signed_val() macro. ** UWord: An unsigned integer at least as large as a void * and also as large ** or larger than an Eterm @@ -767,6 +770,8 @@ extern void *erts_sys_ddll_call_init(void *function); extern void *erts_sys_ddll_call_nif_init(void *function); extern int erts_sys_ddll_sym2(void *handle, const char *name, void **function, ErtsSysDdllError*); #define erts_sys_ddll_sym(H,N,F) erts_sys_ddll_sym2(H,N,F,NULL) +extern int erts_sys_ddll_vsym2(void *handle, const char *name, const char *vers, void **function, ErtsSysDdllError*); +#define erts_sys_ddll_vsym(H,N,V,F) erts_sys_ddll_vsym2(H,N,V,F,NULL) extern char *erts_sys_ddll_error(int code); @@ -1368,4 +1373,60 @@ erts_raw_env_next_char(byte *p, int encoding) #define ERTS_SPAWN_DRV_CONTROL_MAGIC_NUMBER 0x04c76a00U #define ERTS_FORKER_DRV_CONTROL_MAGIC_NUMBER 0x050a7800U +#define ERTS_ATTR_WUR +#define ERTS_ATTR_ALLOC_SIZE(SZPOS) +#define ERTS_ATTR_MALLOC_U +#define ERTS_ATTR_MALLOC_US(SZPOS) +#define ERTS_ATTR_MALLOC_UD(DTOR, PTRPOS) +#define ERTS_ATTR_MALLOC_USD(SZPOS, DTOR, PTRPOS) +#define ERTS_ATTR_MALLOC_D(DTOR, PTRPOS) + +/* ERTS_ATTR_MALLOC_xxx: + * U: Returns pointer to Undefined data. ((malloc)) + * S: Has Size argument with nr of bytes of returned data. ((alloc_size(SZPOS))) + * D: Has 1-to-1 Deallocator function with ptr argument. ((malloc(DTOR,PTRPOS))) + * (D does not work on INLINE functions) + */ + +#ifdef __has_attribute +# if __has_attribute(warn_unused_result) +# undef ERTS_ATTR_WUR +# define ERTS_ATTR_WUR __attribute__((warn_unused_result)) +# endif +# if __has_attribute(alloc_size) +# undef ERTS_ATTR_ALLOC_SIZE +# define ERTS_ATTR_ALLOC_SIZE(SZPOS) __attribute__((alloc_size(SZPOS))) +# endif +# if __has_attribute(malloc) +# undef ERTS_ATTR_MALLOC_U +# define ERTS_ATTR_MALLOC_U __attribute__((malloc)) ERTS_ATTR_WUR + +# undef ERTS_ATTR_MALLOC_US +# define ERTS_ATTR_MALLOC_US(SZPOS) \ + __attribute__((malloc)) \ + ERTS_ATTR_ALLOC_SIZE(SZPOS) \ + ERTS_ATTR_WUR + +# undef ERTS_ATTR_MALLOC_D +# if defined(__GNUC__) && __GNUC__ >= 11 +# define ERTS_ATTR_MALLOC_D(DTOR, PTRPOS) \ + __attribute__((malloc(DTOR,PTRPOS))) \ + ERTS_ATTR_WUR +# else +# define ERTS_ATTR_MALLOC_D(DTOR, PTRPOS) \ + ERTS_ATTR_WUR +# endif + +# undef ERTS_ATTR_MALLOC_UD +# define ERTS_ATTR_MALLOC_UD(DTOR, PTRPOS) \ + ERTS_ATTR_MALLOC_U \ + ERTS_ATTR_MALLOC_D(DTOR, PTRPOS) + +# undef ERTS_ATTR_MALLOC_USD +# define ERTS_ATTR_MALLOC_USD(SZPOS, DTOR, PTRPOS) \ + ERTS_ATTR_MALLOC_US(SZPOS) \ + ERTS_ATTR_MALLOC_D(DTOR, PTRPOS) +# endif #endif + +#endif /* __SYS_H__ */ |