a579f84e90
The old system call mechanism works by relocating the symbol __occlum_syscall provided by libocclum_stub.so to the real entry point of the LibOS. This symbol relocation is done by the program loader. Now, the new system call mechanism is based on passing the entry point via the auxiliary vector. This new mechanism is simpler and is more compatible with the upcoming support for ld.so. Changes: 1. Fix a bug in serializing auxiliary vector in the stack of a user program; 2. Passing syscall entry via auxiliary vector; 3. Remove relocating for the __occlum_syscall symbol; 4. Remove the dependency on libocclum_stub.so in tests. |
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