feat(libSystem): improved 'PrintOut' to use 'StrFmt' instead of stdc's string format.

Signed-off-by: Amlal <amlal@nekernel.org>

1 files changed, 0 insertions, 180 deletions

diff --git a/dev/libSystem/src/SystemCalls.cc b/dev/libSystem/src/SystemCalls.cc
deleted file mode 100644
index 83569b6f..00000000
--- a/dev/libSystem/src/SystemCalls.cc
+++ /dev/null
@@ -1,180 +0,0 @@
-/* -------------------------------------------

-

-  Copyright (C) 2024-2025, Amlal El Mahrouss, all rights reserved.

-

-------------------------------------------- */

-

-#include <libSystem/SystemKit/Syscall.h>

-#include <libSystem/SystemKit/System.h>

-

-namespace Detail {

-  template<typename T>

-  inline VoidPtr safe_void_cast(const T* ptr) {

-    return const_cast<VoidPtr>(static_cast<const VoidPtr>(ptr));

-  }

-}

-

-// memmove-style copy

-IMPORT_C VoidPtr MmCopyMemory(_Input VoidPtr dest, _Input VoidPtr src, _Input SizeT len) {

-  // handles overlap, prefers 64-bit word copies when aligned 

-  if (!len || !dest || !src) return nullptr;

-

-  auto s = static_cast<const UInt8*>(src);

-  auto d = static_cast<UInt8*>(dest);

-

-  if (d == s) return dest;

-

-  // decide direction

-  if (d > s && d < s + len) {

-    const UInt8* rs = s + len;

-    UInt8* rd = d + len;

-

-    // try 64-bit aligned backward copy

-    if (len >= sizeof(UInt64) &&

-        (reinterpret_cast<UIntPtr>(rs) % sizeof(UInt64) == 0) &&

-        (reinterpret_cast<UIntPtr>(rd) % sizeof(UInt64) == 0)) {

-

-      auto rsw = reinterpret_cast<const UInt64*>(rs);

-      auto rdw = reinterpret_cast<UInt64*>(rd);

-      SizeT words = len / sizeof(UInt64);

-

-      for (SizeT i = 0; i < words; ++i) {

-        rdw[-1 - static_cast<SizeT>(i)] = rsw[-1 - static_cast<SizeT>(i)];

-      }

-

-      SizeT rem = len % sizeof(UInt64);

-      for (SizeT i = 0; i < rem; ++i) {

-        rd[-1 - i] = rs[-1 - i];

-      }

-    } else {

-      // byte-wise backward

-      for (SizeT i = 0; i < len; ++i) {

-        rd[-1 - i] = rs[-1 - i];

-      }

-    }

-  } else {

-    // try 64-bit aligned forward copy

-    if (len >= sizeof(UInt64) &&

-        (reinterpret_cast<UIntPtr>(s) % sizeof(UInt64) == 0) &&

-        (reinterpret_cast<UIntPtr>(d) % sizeof(UInt64) == 0)) {

-

-      auto sw = reinterpret_cast<const UInt64*>(s);

-      auto dw = reinterpret_cast<UInt64*>(d);

-      SizeT words = len / sizeof(UInt64);

-

-      for (SizeT i = 0; i < words; ++i) {

-        dw[i] = sw[i];

-      }

-

-      SizeT rem = len % sizeof(UInt64);

-      const SizeT offset = words * sizeof(UInt64);

-      for (SizeT i = 0; i < rem; ++i) {

-        d[offset + i] = s[offset + i];

-      }

-    } else {

-      for (SizeT i = 0; i < len; ++i) {

-        d[i] = s[i];

-      }

-    }

-  }

-

-  return dest;

-}

-

-IMPORT_C SInt64 MmStrLen(const Char* in) {

-  // strlen via pointer walk

-  if (!in) return 0;

-  const Char* p = in;

-  while (*p) ++p;

-  return static_cast<SInt64>(p - in);

-}

-

-IMPORT_C VoidPtr MmFillMemory(_Input VoidPtr dest, _Input SizeT len, _Input UInt8 value) {

-  if (!len || !dest) return nullptr;

-

-  auto d = static_cast<UInt8*>(dest);

-

-  if (len >= sizeof(UInt64) && (reinterpret_cast<UIntPtr>(d) % sizeof(UInt64)) == 0) {

-    UInt64 pattern = static_cast<UInt64>(value);

-    pattern |= (pattern << 8);

-    pattern |= (pattern << 16);

-    pattern |= (pattern << 32);

-

-    auto dw = reinterpret_cast<UInt64*>(d);

-    SizeT words = len / sizeof(UInt64);

-

-    for (SizeT i = 0; i < words; ++i) {

-      dw[i] = pattern;

-    }

-

-    SizeT rem = len % sizeof(UInt64);

-    const SizeT offset = words * sizeof(UInt64);

-    for (SizeT i = 0; i < rem; ++i) {

-      d[offset + i] = value;

-    }

-  } else {

-    for (SizeT i = 0; i < len; ++i) d[i] = value;

-  }

-

-  return dest;

-}

-

-IMPORT_C Ref IoOpenFile(_Input const Char* path, _Input const Char* drv_letter) {

-  return static_cast<Ref>(libsys_syscall_arg_3(

-      SYSCALL_HASH("IoOpenFile"),

-      Detail::safe_void_cast(path),

-      Detail::safe_void_cast(drv_letter)));

-}

-

-IMPORT_C Void IoCloseFile(_Input Ref desc) {

-  libsys_syscall_arg_2(SYSCALL_HASH("IoCloseFile"), static_cast<VoidPtr>(desc));

-}

-

-IMPORT_C UInt64 IoSeekFile(_Input Ref desc, _Input UInt64 off) {

-  auto ret_ptr = libsys_syscall_arg_3(

-      SYSCALL_HASH("IoSeekFile"),

-      static_cast<VoidPtr>(desc),

-      reinterpret_cast<VoidPtr>(&off));

-

-  if (!ret_ptr) return ~0UL;

-

-  auto ret = static_cast<volatile UInt64*>(ret_ptr);

-  UInt64 result = *ret;

-  MUST_PASS(result != ~0UL);

-  return result;

-}

-

-IMPORT_C UInt64 IoTellFile(_Input Ref desc) {

-  auto ret_ptr = libsys_syscall_arg_2(SYSCALL_HASH("IoTellFile"),

-                                      static_cast<VoidPtr>(desc));

-  if (!ret_ptr) return ~0UL;

-  auto ret = static_cast<volatile UInt64*>(ret_ptr);

-  return *ret;

-}

-

-IMPORT_C SInt32 PrintOut(_Input IORef desc, const char* fmt, ...) {

-  constexpr SizeT BUF_SZ = 1024;

-  char buf[BUF_SZ];

-

-  va_list args;

-  va_start(args, fmt);

-  int needed = vsnprintf(buf, BUF_SZ, fmt, args);

-  va_end(args);

-

-  // if truncated, `needed` >= BUF_SZ; we still send truncated buffer

-  auto ret_ptr = libsys_syscall_arg_3(

-      SYSCALL_HASH("PrintOut"),

-      static_cast<VoidPtr>(desc),

-      Detail::safe_void_cast(buf));

-

-  if (!ret_ptr) return -1;

-  auto ret = static_cast<const volatile SInt32*>(ret_ptr);

-  return *ret;

-}

-

-IMPORT_C Void _rtl_assert(Bool expr, const Char* origin) {

-  if (!expr) {

-    PrintOut(nullptr, "Assertion failed: %s\r", origin);

-    libsys_syscall_arg_1(SYSCALL_HASH("_rtl_debug_break"));

-  }

-}