mirror of
https://github.com/TwilitRealm/dusklight
synced 2026-07-09 20:41:29 -04:00
Luke Street
61 lines
2.8 KiB
CMake
61 lines
2.8 KiB
CMake
file(READ "${SOURCE_DIR}/cmake/capstone.cmake.in" _content)
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# Insert PATCH_COMMAND before CONFIGURE_COMMAND in the ExternalProject_Add.
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# Bracket args prevent cmake from substituting ${...} while writing this file.
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string(REPLACE
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" CONFIGURE_COMMAND \"\""
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[=[ PATCH_COMMAND "${CMAKE_COMMAND}" -DDIR=${CMAKE_CURRENT_BINARY_DIR}/capstone-src -P "${CAPSTONE_FIX_SCRIPT}"
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CONFIGURE_COMMAND ""]=]
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_content "${_content}")
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file(WRITE "${SOURCE_DIR}/cmake/capstone.cmake.in" "${_content}")
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file(READ "${SOURCE_DIR}/src/funchook_unix.c" _unix_content)
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# macOS rejects the POSIX mprotect RWX/RW transition for executable image pages on arm64.
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# Use Mach VM_PROT_COPY for the short patch window, then restore RX permissions.
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if (NOT _unix_content MATCHES "VM_PROT_READ \\| VM_PROT_WRITE \\| VM_PROT_COPY")
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string(REPLACE
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[=[ rv = mprotect(mstate->addr, mstate->size, prot);]=]
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[=[#ifdef __APPLE__
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kern_return_t kr = vm_protect(mach_task_self(), (vm_address_t)mstate->addr,
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(vm_size_t)mstate->size, FALSE,
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VM_PROT_READ | VM_PROT_WRITE | VM_PROT_COPY);
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if (kr == KERN_SUCCESS) {
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funchook_log(funchook, " unprotect memory %p (size=%"PRIuPTR", prot=read,write,copy) <- %p (size=%"PRIuPTR")\n",
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mstate->addr, mstate->size, start, len);
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return 0;
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}
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funchook_set_error_message(funchook, "Failed to unprotect memory %p (size=%"PRIuPTR", prot=read,write,copy) <- %p (size=%"PRIuPTR", error=%s)",
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mstate->addr, mstate->size, start, len,
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mach_error_string(kr));
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return FUNCHOOK_ERROR_MEMORY_FUNCTION;
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#endif
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rv = mprotect(mstate->addr, mstate->size, prot);]=]
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_unix_content "${_unix_content}")
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string(REPLACE
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[=[ char errbuf[128];
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int rv = mprotect(mstate->addr, mstate->size, PROT_READ | PROT_EXEC);]=]
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[=[ char errbuf[128];
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#ifdef __APPLE__
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kern_return_t kr = vm_protect(mach_task_self(), (vm_address_t)mstate->addr,
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(vm_size_t)mstate->size, FALSE,
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VM_PROT_READ | VM_PROT_EXECUTE);
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if (kr == KERN_SUCCESS) {
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funchook_log(funchook, " protect memory %p (size=%"PRIuPTR", prot=read,exec)\n",
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mstate->addr, mstate->size);
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return 0;
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}
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funchook_set_error_message(funchook, "Failed to protect memory %p (size=%"PRIuPTR", prot=read,exec, error=%s)",
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mstate->addr, mstate->size,
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mach_error_string(kr));
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return FUNCHOOK_ERROR_MEMORY_FUNCTION;
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#endif
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int rv = mprotect(mstate->addr, mstate->size, PROT_READ | PROT_EXEC);]=]
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_unix_content "${_unix_content}")
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endif ()
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file(WRITE "${SOURCE_DIR}/src/funchook_unix.c" "${_unix_content}")
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