diff --git a/psxscl.local.patch b/psxscl.local.patch
index 1b3b9c0..f41d39c 100644
--- a/psxscl.local.patch
+++ b/psxscl.local.patch
@@ -122,16 +122,3 @@ index 2bd615c..705e646 100644
if ((status = __iovtbl[path_info->fdtypeat].close(path_info->hat)))
return status;
-diff --git a/src/process/_execve.c b/src/process/_execve.c
-index a623d2a..80dd4a9 100644
---- a/src/process/_execve.c
-+++ b/src/process/_execve.c
-@@ -232,7 +232,7 @@ intptr_t __sys_execve(const unsigned char * path, const char ** argv, const char
- NT_SECTION_QUERY|NT_SECTION_MAP_EXECUTE,
- &oa,&ssize,
- NT_PAGE_EXECUTE,
-- NT_SEC_IMAGE,
-+ NT_SEC_RESERVE,
- image->info.hfile)))
- return __execve_return(tlca,0,target,-ENOEXEC);
-
diff --git a/psxscl.local@lucio-vm.local.patch b/psxscl.local@lucio-vm.local.patch
deleted file mode 100644
index 1ef8615..0000000
--- a/psxscl.local@lucio-vm.local.patch
+++ /dev/null
@@ -1,202 +0,0 @@
-diff --git a/src/init/psx_init_cwd.c b/src/init/psx_init_cwd.c
-index 924b1b8..02846ba 100644
---- a/src/init/psx_init_cwd.c
-+++ b/src/init/psx_init_cwd.c
-@@ -17,7 +17,7 @@
- #ifndef __PSX_DEFAULT_ROOT_DIRECTORY
- #define __PSX_DEFAULT_ROOT_DIRECTORY { \
- '\\','?','?','\\', \
-- 'C',':','\\','m','i','d','i','p','i','x'}
-+ 'Z',':','\\'}
- #endif
-
- int32_t __psx_init_cwd(void)
-diff --git a/project/common.mk b/project/common.mk
-index 4390578..fa6df57 100644
---- a/project/common.mk
-+++ b/project/common.mk
-@@ -102,6 +102,7 @@ COMMON_SRCS = \
- src/kernel/_systime.c \
- src/kernel/_uname.c \
- src/mman/_mmap.c \
-+ src/mman/_mprotect.c \
- src/mman/_mremap.c \
- src/mman/_munmap.c \
- src/mount/_mount.c \
-diff --git a/src/init/psx_dev_wip.c b/src/init/psx_dev_wip.c
-index fe319bc..3915590 100644
---- a/src/init/psx_dev_wip.c
-+++ b/src/init/psx_dev_wip.c
-@@ -89,6 +89,7 @@ static void __populate_syscall_vtbl(void)
-
- /* mman */
- set_syscall_pointer(mmap);
-+ set_syscall_pointer(mprotect);
- set_syscall_pointer(mremap);
- set_syscall_pointer(munmap);
-
-@@ -263,6 +264,7 @@ static void __populate_strace_vtbl(void)
-
- /* mman */
- set_strace_pointer(mmap);
-+ set_strace_pointer(mprotect);
- set_strace_pointer(mremap);
- set_strace_pointer(munmap);
-
-diff --git a/src/internal/psx.h b/src/internal/psx.h
-index 1791bda..21efa46 100644
---- a/src/internal/psx.h
-+++ b/src/internal/psx.h
-@@ -97,6 +97,7 @@ typedef intptr_t __sys_routine(uname)(struct __utsname *);
-
- /* mman */
- typedef void * __sys_routine(mmap)(void * addr, size_t length, int prot, int flags, int,off_t offset);
-+typedef intptr_t __sys_routine(mprotect)(void * addr, size_t length, int prot);
- typedef void * __sys_routine(mremap)(void * mapaddr, size_t mapsize, size_t newsize, int flags);
- typedef intptr_t __sys_routine(munmap)(void * addr, size_t length);
-
-@@ -270,6 +271,7 @@ __sys_interface(uname);
-
- /* mman */
- __sys_interface(mmap);
-+__sys_interface(mprotect);
- __sys_interface(mremap);
- __sys_interface(munmap);
-
-diff --git a/src/internal/psx_strace.c b/src/internal/psx_strace.c
-index 6d39093..45e7ecd 100644
---- a/src/internal/psx_strace.c
-+++ b/src/internal/psx_strace.c
-@@ -859,6 +859,22 @@ void * __strace_mmap(void * addr,size_t length,int prot,int flags,int fd,off_t o
-
- }
-
-+intptr_t __strace_mprotect(void * addr,size_t length,int prot)
-+{
-+ struct __strace_params params = {
-+ __STRACE_MPROTECT,3,
-+ {__STRACE_SINTEGER,0},
-+ {{__STRACE_POINTER,(intptr_t)addr},
-+ {__STRACE_SINTEGER,length},
-+ {__STRACE_SINTEGER,prot}}};
-+
-+ if (!addr) params.params[0].type = __STRACE_SINTEGER;
-+ params.ret.value = (intptr_t)__sys_mprotect(addr,length,prot);
-+ __strace(¶ms);
-+ return (void *)params.ret.value;
-+
-+}
-+
- void * __strace_mremap(void * mapaddr, size_t mapsize, size_t newsize, int flags)
- {
- struct __strace_params params = {
-diff --git a/src/internal/psx_strace.h b/src/internal/psx_strace.h
-index 67eecce..293cfdf 100644
---- a/src/internal/psx_strace.h
-+++ b/src/internal/psx_strace.h
-@@ -60,6 +60,7 @@ enum __strace_sysids {
- __STRACE_SYSINFO,
- __STRACE_UNAME,
- __STRACE_MMAP,
-+ __STRACE_MPROTECT,
- __STRACE_MREMAP,
- __STRACE_MUNMAP,
- __STRACE_MOUNT,
-@@ -197,6 +198,7 @@ enum __strace_sysids {
- "sysinfo", \
- "uname", \
- "mmap", \
-+ "mprotect", \
- "mremap", \
- "munmap", \
- "mount", \
-@@ -346,6 +348,7 @@ __strace_interface(uname);
-
- /* mman */
- __strace_interface(mmap);
-+__strace_interface(mprotect);
- __strace_interface(mremap);
- __strace_interface(munmap);
-
-diff --git a/src/mman/_mmap.c b/src/mman/_mmap.c
-index 13762e3..27ea942 100644
---- a/src/mman/_mmap.c
-+++ b/src/mman/_mmap.c
-@@ -95,7 +95,9 @@ void * __sys_mmap(
- return (void *)__psx_sig_epilog(m.tlca,-EINVAL,EPSXONLY);
-
- /* protection */
-- if (__psx_convert_flags_to_native(
-+ if (!prot)
-+ m.cprot = NT_PAGE_NOACCESS;
-+ else if (__psx_convert_flags_to_native(
- __mmap_section_prot,
- prot,&m.cprot,0))
- return (void *)__psx_sig_epilog(m.tlca,-EINVAL,EPSXONLY);
-diff --git a/src/mman/_mprotect.c b/src/mman/_mprotect.c
-new file mode 100644
-index 0000000..7ac46d3
---- /dev/null
-+++ b/src/mman/_mprotect.c
-@@ -0,0 +1,61 @@
-+/********************************************************/
-+/* psxscl: a thread-safe system call layer library */
-+/* Copyright (C) 2013--2016 Z. Gilboa */
-+/* Released under GPLv2 and GPLv3; see COPYING.PSXSCL. */
-+/********************************************************/
-+
-+#include <ntapi/ntapi.h>
-+#include "psx_systypes.h"
-+#include "psx_tlca.h"
-+#include "psx_errno.h"
-+#include "psx_flags.h"
-+#include "psx_mman.h"
-+#include "psx_signal.h"
-+#include "psx_ofd.h"
-+#include "psx_acl.h"
-+#include "psx.h"
-+
-+static const struct __flag_set __mmap_section_prot[] = {
-+ {PROT_READ, NT_PAGE_READONLY},
-+ {PROT_WRITE, NT_PAGE_READWRITE},
-+ {PROT_EXEC, NT_PAGE_EXECUTE},
-+ {PROT_NONE, 0},
-+ {0, 0}};
-+
-+
-+__psx_api
-+intptr_t __sys_mprotect(
-+ void * addr,
-+ size_t length,
-+ int prot)
-+{
-+ int32_t status;
-+ struct __psx_tlca * tlca;
-+ struct __psx_ctx * ctx;
-+ uint32_t cprot, protect_type_old;
-+
-+ /* prolog */
-+ tlca = __tlca_self();
-+ if (!(ctx = __tlca_shared_ctx(tlca))) return 0;
-+ __psx_sig_prolog(tlca);
-+
-+
-+ /* protection */
-+ if (!prot)
-+ cprot = NT_PAGE_NOACCESS;
-+ else if (__psx_convert_flags_to_native(
-+ __mmap_section_prot,
-+ prot,&cprot,0))
-+ return __psx_sig_epilog(tlca,-EINVAL,EPSXONLY);
-+
-+ if (cprot & NT_PAGE_READWRITE)
-+ cprot = NT_PAGE_READWRITE;
-+
-+ if ((status = __ntapi->zw_protect_virtual_memory(
-+ NT_CURRENT_PROCESS_HANDLE,
-+ &addr, &length,
-+ cprot, &protect_type_old)))
-+ return __psx_sig_epilog(tlca,-ENOMEM,status);
-+
-+ return __psx_sig_epilog(tlca,0,status);
-+}