jarlostensen

// from josx64, but this code is pretty generic.
// [kernel] fills in the pagetable entries from the given address 
//
// see for example Intel Dev Guide Vol 3 4.2
_JOS_API_FUNC void    pagetables_traverse_tables(void* at, uintptr_t * entries, size_t num_entries) {
    _JOS_ASSERT(entries &&_4_level_paging && num_entries>=4);
    
    memset(entries, 0, 4*sizeof(uintptr_t));

    //NOTE: this relies on identity mapping in order to get access to the pagetables themselves 

jarlostensen

def post_bin_example():
    import requests
    import numpy as np
    #NOTE! the dtype used here and on the server have to match and byte ordering isn't considered in this example
    x =  np.random.rand(10).astype(np.float32)
    print(f'sending {len(x)} floats : {x}')
    res = requests.post(url=ROOT_PATH+r'/readbin',
                        data=x.tobytes(),
                        headers={'Content-Type': 'application/octet-stream'})
    print(res)

jarlostensen

# a *very* simple CMake file which will build a valid PE+ 64 bit EFI executable using Clang + LLD-LINK on Windows
# with LLVM clang+linker present in an "external" folder as specified below. 
#
# To generate Ninja build scripts for this example:
# cmake.exe -H. -G Ninja -Bbuild^
# -DCMAKE_SYSTEM_NAME="Generic"^
# -DCMAKE_C_COMPILER:PATH="%CD%\external\LLVM\bin\clang.exe" -DCMAKE_C_COMPILER_ID="Clang"^
# -DCMAKE_CXX_COMPILER:PATH="%CD%\external\LLVM\bin\clang.exe" -DCMAKE_CXX_COMPILER_ID="Clang"^
# -DCMAKE_LINKER:PATH="%CD%\external\LLVM\bin\lld-link.exe"
#