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move pthread_atfork wrapper to util header

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This commit is contained in:
Daniel Micay 2019-03-25 16:38:16 -04:00
parent b5187a0aff
commit fc8f2c3b60
2 changed files with 9 additions and 10 deletions
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10
h_malloc.c
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@ -21,17 +21,7 @@
#include "random.h" #include "random.h"
#include "util.h" #include "util.h"
// use __register_atfork directly to avoid linking with libpthread for glibc < 2.28
#if defined(__GLIBC__) && !__GLIBC_PREREQ(2, 28)
extern void *__dso_handle;
extern int __register_atfork(void (*)(void), void (*)(void), void (*)(void), void *);
#define atfork(prepare, parent, child) __register_atfork(prepare, parent, child, __dso_handle)
#else
#define atfork pthread_atfork
#endif
#define SLAB_QUARANTINE (SLAB_QUARANTINE_RANDOM_LENGTH > 0 || SLAB_QUARANTINE_QUEUE_LENGTH > 0) #define SLAB_QUARANTINE (SLAB_QUARANTINE_RANDOM_LENGTH > 0 || SLAB_QUARANTINE_QUEUE_LENGTH > 0)
#define MREMAP_MOVE_THRESHOLD (32 * 1024 * 1024) #define MREMAP_MOVE_THRESHOLD (32 * 1024 * 1024)
static_assert(sizeof(void *) == 8, "64-bit only"); static_assert(sizeof(void *) == 8, "64-bit only");

9
util.h
View File

@ -38,6 +38,15 @@ typedef uint32_t u32;
typedef uint64_t u64; typedef uint64_t u64;
typedef unsigned __int128 u128; typedef unsigned __int128 u128;
// use __register_atfork directly to avoid linking with libpthread for glibc < 2.28
#if defined(__GLIBC__) && !__GLIBC_PREREQ(2, 28)
extern void *__dso_handle;
extern int __register_atfork(void (*)(void), void (*)(void), void (*)(void), void *);
#define atfork(prepare, parent, child) __register_atfork(prepare, parent, child, __dso_handle)
#else
#define atfork pthread_atfork
#endif
#ifdef CONFIG_SEAL_METADATA #ifdef CONFIG_SEAL_METADATA
#if defined(__GLIBC__) && __GLIBC_PREREQ(2, 27) #if defined(__GLIBC__) && __GLIBC_PREREQ(2, 27)
#define USE_PKEY #define USE_PKEY