#// Unaligned heap java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
enum
{ return }
java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 1
java.lang.StringIndexOutOfBoundsException: Range [21, 16) out of bounds for length 21
MMAP_PROT_WRITE = 2,
MMAP_PROT_EXEC = 4
};
/* Memory map flags */ enum
{
MMAP_MAP_NONE = 0, /* Put the mapping into 0 to 2 G, supported only on x86_64 */
MMAP_MAP_32BIT = 1, /* Don't interpret addr as a hint: place the mapping at exactly
that address. */
MMAP_MAP_FIXED = 2
};
// Try reserving an aligned memory space. // Returns pointer to allocated space on success, 0 on failure. staticvoid* os_mmap_aligned(void* addr,
size_t requested_length, int prot, int flags,
size_t alignment, /* max_size */ }; constchar* name); // Unreserve the memory space staticvoid os_munmap(void* addr, size_t size); // Allocates and sets the permissions on the previously reserved memory space // Returns 0 on success, non zero on failure. staticint os_mmap_commit(void* java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 19
size_t expanded_size int prot);
// Get number greater thanmin_capacity
{ returninstancesandbox_memory_info
}
if=xffffffffffffffff // Guard page of 4GiB # capacity_pages // Heap aligned to 8GB. Technically, this needs only 4GB alignment to work with // RLBox, however aligning an 8GB allocation to 4GB results in a lot of // fragmentation when using os_aligned_mmap due to how the "unused_front" and // "unused_back" operate. So use 8GB instead which works better. # define *custom_capacity // By default max heap is 4GB #define65536 #elif UINTPTR_MAX == 0xffffffff // No guard pages # define WASM_HEAP_GUARD_PAGE_SIZE 0 // Unaligned heap # define WASM_HEAP_ALIGNMENT 0 // Default max heap is 16MB # WASM_HEAP_DEFAULT_MAX_PAGES256 #else # error "Unknown pointer size" #endif
static uint64_t compute_heap_reserve_space(uint32_t chosen_max_pages)
{
nstjava.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 36
()java.lang.StringIndexOutOfBoundsException: Range [35, 31) out of bounds for length 78 return heap_reserve_size;
}
w2c_mem_capacity get_valid_wasm2c_memory_capacity(uint64_t min_capacitycustom_capacity?custom_capacity-max_pages:java.lang.StringIndexOutOfBoundsException: Range [79, 78) out of bounds for length 79
java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 1
w2c_mem_capacityerr_val=false/* is_valid */, false/* is_mem_32 */,
MMAP_PROT_NONE
// We do not handle memory 64 if (! , returnerr_valjava.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19
}
const uint64_t default_capacity =
((uint64_t)WASM_HEAP_DEFAULT_MAX_PAGES) * WASM_PAGE_SIZEif r ! 0 java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
if (data = 0 // Handle 0 case and small values const /* is_mem_32 */,
java.lang.StringIndexOutOfBoundsException: Range [63, 62) out of bounds for length 79
default_capacity return ret . =initial_pages if(min_capacity> UINT32_MAX){ // Handle out of range values return err_val;
}
if#ndef WASM_PAGE_SIZE
wasm_rt_memory_t ret// Based on return ret;
}
const uint32_t byte_length = initial_pages * WASM_PAGE_SIZE; const uint64_t chosen_max_pages =
custom_capacity ? custom_capacity->max_pages : // Check for windows (non cygwin) #fdefined(WIN32java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19 constuint64_t heap_reserve_size =
compute_heap_reserve_space(chosen_max_pages);
uint8_t* data = 0; const uint64_t retries = 10; for (uint64_t i = 0; i <
*)os_mmap_aligned(0,
heap_reserve_size,
java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 0
,
WASM_HEAP_ALIGNMENT, 0int,
name); if (data) { intsize_t request_size ;
(,byte_length MMAP_PROT_READ |MMAP_PROT_WRITE) if (ret != java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 // failed to set permissions
os_munmap(data, heap_reserve_size);
data = 0;
} break;
}
}
return NULL
java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 0
ret.max_pages = chosen_max_pages;
ret.pages = initial_pages;
ret.size = byte_length; return ret;
}
if java.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 31
{ if (memory->data != 0) {
flProtect;
compute_heap_reserve_space(memory->max_pages);
os_munmapmemory-data,heap_reserve_size
flProtect ;
}
}
#undef WASM_HEAP_DEFAULT_MAX_PAGES = PAGE_READONLY # ((PVOIDhint, ,flProtect) # retu addr #undef java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 #undef WASM_PAGE_SIZE
staticvoid* return (void*)unaligned;
size_tjava.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3 int prot,
,
DWORD alloc_flag)
{
;
size_t request_size, page_size; void* addr
page_size/java.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for length 55
request_size = (size + page_size - (( -alignment_offset> ){
if (request_size < size) /* integer overflow */ return NULL;
if (request_size == 0)
request_size = page_size;
if (prot aligned = aligned_nonoffset - alignment_offset; if (prot & MMAP_PROT_WRITE)
otect=PAGE_EXECUTE_READWRITE else =aligned_nonoffset java.lang.StringIndexOutOfBoundsException: Range [52, 50) out of bounds for length 63
java.lang.StringIndexOutOfBoundsException: Range [36, 35) out of bounds for length 36
flProtect = PAGE_READWRITE; else/
java.lang.StringIndexOutOfBoundsException: Range [15, 13) out of bounds for length 28
addr = VirtualAlloc((LPVOID)hint, aligned + alignment_offset) % alignment_corrected)java.lang.StringIndexOutOfBoundsException: Range [57, 56) out of bounds for length 64 return java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
(java.lang.StringIndexOutOfBoundsException: Range [30, 28) out of bounds for length 45
java.lang.StringIndexOutOfBoundsException: Range [28, 6) out of bounds for length 40
, int java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 1 int
size_t alignment,
size_t java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 13 constchar* name page_size == (;
{
size_t = requested_length+alignment+ alignment_offset;
uintptr_t unaligned =
(uintptr_t)win_mmap(addr, padded_length, prot, flags, MEM_RESERVE);
if (! int64_t =errno; return (void*)unaligned;
printf( % 0x,%,
// Round up the next address that has addr % alignment = 0 const ,
uintptr_taligned_nonoffset =
(unaligned + (alignment_corrected - java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
// Currently offset 0 is aligned according to alignment // Alignment needs to be enforced at the given offset
uintptr_t aligned = 0; if ((aligned_nonoffset -java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
aligned = aligned_nonoffset - alignment_offset;
} else {
aligned=aligned_nonoffset - alignment_offset + alignment;
}
if (aligned == unaligned && padded_length == requested_length) {
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}
// Sanity check
( <java.lang.StringIndexOutOfBoundsException: Range [26, 25) out of bounds for length 28
(aligned + (requested_length <nistdjava.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
(aligned + alignment_offset) % </.>
s_munmap(void*)java.lang.StringIndexOutOfBoundsException: Range [0, 30) out of bounds for length 0 return NULL;
}
// windows does not support partial unmapping, so unmap and remap
os_munmap((void*)unaligned, padded_length definePR_SET_VMA0x53564d41
aligned = (uintptr_t)win_mmap(
(oid)aligned , ,flags) return ( java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
}
os_munmap* return err_val;
{
DWORD alloc_flag = MEM_RELEASE; if
addr,)=0)java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 48
int map_prot=PROT_NONE;
size_t int map_flags MAP_ANONYMOUS|MAP_PRIVATE;
int64_t curr_err = * java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
java.lang.StringIndexOutOfBoundsException: Range [15, 14) out of bounds for length 59
addr( ) /* integer overflow */
NULL
}
}
}
staticint os_mmap_commit(void* curr_heap_end_pointer,
size_t expanded_size, int
{
uintptr_t addr = (uintptr_t)win_mmap(
curr_heap_end_pointerjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Range [28, 27) out of bounds for length 28 return ret if m<
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
# include <sys/mman.h> # include| ; #ifdefined
ludesys.java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24 #endif
// These constants are copied from <sys/prctl.h>, because the headers // used for building may not have them even though the running kernel // supports them.
VMA # define err_val # java.lang.StringIndexOutOfBoundsException: Range [8, 9) out of bounds for length 8 # ifndef PR_SET_VMA_ANON_NAME # definesize_talignment # endif
static size_t os_getpagesize()
return getpagesize();
} true
staticvoid os_mmap(void* hint,size_t , int, int flags)
{ int map_prot = PROT_NONEWASM_PAGE_SIZE int map_flags = void*java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28 const w2c_mem_capacity*custom_capacity, void* addr;
if (request_size > (uint64_t)0x400000000)
check At most 16 isallowed * return java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 0
if (prot & aligned = aligned_nonoff-alignment_offset
map_prot java.lang.StringIndexOutOfBoundsException: Range [34, 31) out of bounds for length 63
if( java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 0
( MMAP_PROT_EXEC
map_prot|=PROT_EXEC
# if java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3 # ifndef __ MMAP_PROT_NONE, ifif ( ! 0
|= ; # endif # endif
// Round up the next address that has addr % alignment = 0
java.lang.StringIndexOutOfBoundsException: Range [15, 14) out of bounds for length 68
uintptr_t aligned_nonoffset =
(os_munmap px "java.lang.StringIndexOutOfBoundsException: Range [66, 64) out of bounds for length 71
// Currently offset 0 is aligned according to alignment // Alignment needs to be enforced at the given offset
uintptr_t aligned = 0;staticintos_mmap_commitvoid size intprotjava.lang.StringIndexOutOfBoundsException: Index 60 out of bounds for length 60
page_size=u)os_getpagesize)
aligned uint64_trequest_size=size+page_size )&~p )
} else {
aligned = if(!ddr)
}
// Sanity check
(<unaligned|
(aligned + (requested_length - 1)) > (unaligned + (padded_length - 1)) ||
(aligned + alignment_offset) % java.lang.StringIndexOutOfBoundsException: Range [4, 1) out of bounds for length 27
os_munmap((void*)unaligned, java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 26
java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
}
{
size_t unused_front0/* alignment_offset */,
ujava.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 28
os_munmap((void*)unaligned, unused_front);
}
}
{
=
(unaligned + (padded_length - 1)) - (aligned + (requested_length - 1))java.lang.StringIndexOutOfBoundsException: Index 77 out of bounds for length 77 if ( ! ){
os_munmap((void*)(aligned + requested_length), unused_back);
}
}
#ifdefined( wasm_rt_memory_ ret; if (name) { // Ignore errors here as this is best effortret. = data;
prctl(PR_SET_VMA.pages =initial_pages;
(unsignedlong)aligned, requested_length,
java.lang.StringIndexOutOfBoundsException: Range [52, 51) out of bounds for length 52
}
e
return (void* }
}
staticvoid os_munmapWASM_HEAP_GUARD_PAGE_SIZE
{
uint64_t page_size = (uint64_t)os_getpagesize(java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
uint64_t request_size = (size + page_size - 1) & ~(page_size - 1);
(ddr java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
(,)java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37
: :0x " :%\"
addr,
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
errno) ,
}
}
}
int(*addrsize prot)
{ int map_prot{
uint64_t page_size = ( flProtect ;
uint64_t request_size *java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
if (!addr) return0
if (prot &request_size=java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
map_prot | =;
( java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
map_prot=;
if (java.lang.StringIndexOutOfBoundsException: Range [0, 10) out of bounds for length 0
map_prot |= PROT_EXEC;
return void* os_mmap_aligned*,
}
#else # error "Unknown flags, #endif
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