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Kernel: Add anonymous files, created with sys$anon_create()
This patch adds a new AnonymousFile class which is a File backed by an AnonymousVMObject that can only be mmap'ed and nothing else, really. I'm hoping that this can become a replacement for shbufs. :^)
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8 changed files with 191 additions and 1 deletions
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@ -136,4 +136,10 @@ int get_stack_bounds(uintptr_t* user_stack_base, size_t* user_stack_size)
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int rc = syscall(SC_get_stack_bounds, user_stack_base, user_stack_size);
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__RETURN_WITH_ERRNO(rc, rc, -1);
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}
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int anon_create(size_t size, int options)
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{
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int rc = syscall(SC_anon_create, size, options);
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__RETURN_WITH_ERRNO(rc, rc, -1);
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}
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}
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@ -73,6 +73,8 @@ int perf_event(int type, uintptr_t arg1, uintptr_t arg2);
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int get_stack_bounds(uintptr_t* user_stack_base, size_t* user_stack_size);
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int anon_create(size_t size, int options);
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#ifdef __i386__
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ALWAYS_INLINE void send_secret_data_to_userspace_emulator(uintptr_t data1, uintptr_t data2, uintptr_t data3)
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{
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