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136 lines
3.6 KiB
C
136 lines
3.6 KiB
C
//
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// m3_api_libc.c
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//
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// Created by Volodymyr Shymanskyy on 11/20/19.
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// Copyright © 2019 Volodymyr Shymanskyy. All rights reserved.
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//
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#define _POSIX_C_SOURCE 200809L
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#include "m3_api_libc.h"
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#include "m3_api_defs.h"
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#include "m3_env.h"
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#include "m3_exception.h"
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#include <time.h>
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#include <errno.h>
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#include <stdio.h>
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m3ApiRawFunction(m3_libc_abort)
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{
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m3ApiTrap(m3Err_trapAbort);
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}
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m3ApiRawFunction(m3_libc_exit)
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{
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m3ApiGetArg (int32_t, code)
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m3ApiTrap(m3Err_trapExit);
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}
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m3ApiRawFunction(m3_libc_memset)
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{
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m3ApiReturnType (int32_t)
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m3ApiGetArgMem (void*, i_ptr)
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m3ApiGetArg (int32_t, i_value)
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m3ApiGetArg (int32_t, i_size)
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m3ApiCheckMem(i_ptr, i_size);
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u32 result = m3ApiPtrToOffset(memset (i_ptr, i_value, i_size));
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m3ApiReturn(result);
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}
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m3ApiRawFunction(m3_libc_memmove)
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{
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m3ApiReturnType (int32_t)
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m3ApiGetArgMem (void*, o_dst)
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m3ApiGetArgMem (void*, i_src)
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m3ApiGetArg (int32_t, i_size)
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m3ApiCheckMem(o_dst, i_size);
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m3ApiCheckMem(i_src, i_size);
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u32 result = m3ApiPtrToOffset(memmove (o_dst, i_src, i_size));
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m3ApiReturn(result);
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}
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m3ApiRawFunction(m3_libc_print)
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{
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m3ApiReturnType (uint32_t)
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m3ApiGetArgMem (void*, i_ptr)
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m3ApiGetArg (uint32_t, i_size)
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m3ApiCheckMem(i_ptr, i_size);
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fwrite(i_ptr, i_size, 1, stdout);
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fflush(stdout);
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m3ApiReturn(i_size);
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}
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m3ApiRawFunction(m3_libc_clock_ms)
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{
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m3ApiReturnType (uint32_t)
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m3ApiReturn(clock() / (CLOCKS_PER_SEC/1000));
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}
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static
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M3Result SuppressLookupFailure (M3Result i_result)
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{
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if (i_result == m3Err_functionLookupFailed)
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return m3Err_none;
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else
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return i_result;
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}
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m3ApiRawFunction(m3_spectest_dummy)
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{
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m3ApiSuccess();
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}
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M3Result m3_LinkSpecTest (IM3Module module)
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{
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M3Result result = m3Err_none;
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const char* spectest = "spectest";
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_ (SuppressLookupFailure (m3_LinkRawFunction (module, spectest, "print", "v()", &m3_spectest_dummy)));
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_ (SuppressLookupFailure (m3_LinkRawFunction (module, spectest, "print_i32", "v(i)", &m3_spectest_dummy)));
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_ (SuppressLookupFailure (m3_LinkRawFunction (module, spectest, "print_i64", "v(I)", &m3_spectest_dummy)));
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_ (SuppressLookupFailure (m3_LinkRawFunction (module, spectest, "print_f32", "v(f)", &m3_spectest_dummy)));
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_ (SuppressLookupFailure (m3_LinkRawFunction (module, spectest, "print_f64", "v(F)", &m3_spectest_dummy)));
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_ (SuppressLookupFailure (m3_LinkRawFunction (module, spectest, "print_i32_f32", "v(if)", &m3_spectest_dummy)));
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_ (SuppressLookupFailure (m3_LinkRawFunction (module, spectest, "print_i64_f64", "v(IF)", &m3_spectest_dummy)));
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_catch:
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return result;
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}
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M3Result m3_LinkLibC (IM3Module module)
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{
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M3Result result = m3Err_none;
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const char* env = "env";
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_ (SuppressLookupFailure (m3_LinkRawFunction (module, env, "_debug", "i(*i)", &m3_libc_print)));
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_ (SuppressLookupFailure (m3_LinkRawFunction (module, env, "_memset", "*(*ii)", &m3_libc_memset)));
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_ (SuppressLookupFailure (m3_LinkRawFunction (module, env, "_memmove", "*(**i)", &m3_libc_memmove)));
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_ (SuppressLookupFailure (m3_LinkRawFunction (module, env, "_memcpy", "*(**i)", &m3_libc_memmove))); // just alias of memmove
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_ (SuppressLookupFailure (m3_LinkRawFunction (module, env, "_abort", "v()", &m3_libc_abort)));
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_ (SuppressLookupFailure (m3_LinkRawFunction (module, env, "_exit", "v(i)", &m3_libc_exit)));
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_ (SuppressLookupFailure (m3_LinkRawFunction (module, env, "clock_ms", "i()", &m3_libc_clock_ms)));
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_catch:
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return result;
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}
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