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trusted: add ifdef NACL_X86_64_ZERO_BASED_SANDBOX #74

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trusted: add ifdef NACL_X86_64_ZERO_BASED_SANDBOX #74

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2 changes: 2 additions & 0 deletions src/trusted/service_runtime/arch/x86_64/sel_addrspace_posix_x86_64.c
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Original file line number Diff line number Diff line change
Expand Up @@ -136,6 +136,7 @@ NaClErrorCode NaClAllocateSpaceAslr(void **mem, size_t addrsp_size,

CHECK(addrsp_size == FOURGIG);

#if defined(NACL_X86_64_ZERO_BASED_SANDBOX)
if (NACL_X86_64_ZERO_BASED_SANDBOX) {
mem_sz = 11 * FOURGIG;
if (getenv("NACL_ENABLE_INSECURE_ZERO_BASED_SANDBOX") != NULL) {
Expand All @@ -159,6 +160,7 @@ NaClErrorCode NaClAllocateSpaceAslr(void **mem, size_t addrsp_size,
*/
mem_sz = FOURGIG;
}
#endif

NaClAddrSpaceBeforeAlloc(mem_sz);
if (NaClFindPrereservedSandboxMemory(mem, mem_sz)) {
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