Kernel: Apply changes to use LibBareMetal definitions

1 files changed, 0 insertions, 254 deletions

diff --git a/Kernel/StdLib.cpp b/Kernel/StdLib.cpp
deleted file mode 100644
index 6c4d671899..0000000000
--- a/Kernel/StdLib.cpp
+++ /dev/null
@@ -1,254 +0,0 @@
-/*
- * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice, this
- *    list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include <AK/Assertions.h>
-#include <AK/String.h>
-#include <AK/Types.h>
-#include <Kernel/Arch/i386/CPU.h>
-#include <Kernel/Heap/kmalloc.h>
-#include <Kernel/StdLib.h>
-#include <Kernel/VM/MemoryManager.h>
-
-String copy_string_from_user(const char* user_str, size_t user_str_size)
-{
-    SmapDisabler disabler;
-    size_t length = strnlen(user_str, user_str_size);
-    return String(user_str, length);
-}
-
-extern "C" {
-
-void copy_to_user(void* dest_ptr, const void* src_ptr, size_t n)
-{
-    ASSERT(is_user_range(VirtualAddress(dest_ptr), n));
-    SmapDisabler disabler;
-    memcpy(dest_ptr, src_ptr, n);
-}
-
-void copy_from_user(void* dest_ptr, const void* src_ptr, size_t n)
-{
-    ASSERT(is_user_range(VirtualAddress(src_ptr), n));
-    SmapDisabler disabler;
-    memcpy(dest_ptr, src_ptr, n);
-}
-
-void* memcpy(void* dest_ptr, const void* src_ptr, size_t n)
-{
-    size_t dest = (size_t)dest_ptr;
-    size_t src = (size_t)src_ptr;
-    // FIXME: Support starting at an unaligned address.
-    if (!(dest & 0x3) && !(src & 0x3) && n >= 12) {
-        size_t size_ts = n / sizeof(size_t);
-        asm volatile(
-            "rep movsl\n"
-            : "=S"(src), "=D"(dest)
-            : "S"(src), "D"(dest), "c"(size_ts)
-            : "memory");
-        n -= size_ts * sizeof(size_t);
-        if (n == 0)
-            return dest_ptr;
-    }
-    asm volatile(
-        "rep movsb\n" ::"S"(src), "D"(dest), "c"(n)
-        : "memory");
-    return dest_ptr;
-}
-
-void* memmove(void* dest, const void* src, size_t n)
-{
-    if (dest < src)
-        return memcpy(dest, src, n);
-
-    u8* pd = (u8*)dest;
-    const u8* ps = (const u8*)src;
-    for (pd += n, ps += n; n--;)
-        *--pd = *--ps;
-    return dest;
-}
-
-char* strcpy(char* dest, const char* src)
-{
-    auto* dest_ptr = dest;
-    auto* src_ptr = src;
-    while ((*dest_ptr++ = *src_ptr++) != '\0')
-        ;
-    return dest;
-}
-
-char* strncpy(char* dest, const char* src, size_t n)
-{
-    size_t i;
-    for (i = 0; i < n && src[i] != '\0'; ++i)
-        dest[i] = src[i];
-    for (; i < n; ++i)
-        dest[i] = '\0';
-    return dest;
-}
-
-void memset_user(void* dest_ptr, int c, size_t n)
-{
-    ASSERT(is_user_range(VirtualAddress(dest_ptr), n));
-    SmapDisabler disabler;
-    memset(dest_ptr, c, n);
-}
-
-void* memset(void* dest_ptr, int c, size_t n)
-{
-    size_t dest = (size_t)dest_ptr;
-    // FIXME: Support starting at an unaligned address.
-    if (!(dest & 0x3) && n >= 12) {
-        size_t size_ts = n / sizeof(size_t);
-        size_t expanded_c = (u8)c;
-        expanded_c |= expanded_c << 8;
-        expanded_c |= expanded_c << 16;
-        asm volatile(
-            "rep stosl\n"
-            : "=D"(dest)
-            : "D"(dest), "c"(size_ts), "a"(expanded_c)
-            : "memory");
-        n -= size_ts * sizeof(size_t);
-        if (n == 0)
-            return dest_ptr;
-    }
-    asm volatile(
-        "rep stosb\n"
-        : "=D"(dest), "=c"(n)
-        : "0"(dest), "1"(n), "a"(c)
-        : "memory");
-    return dest_ptr;
-}
-
-char* strrchr(const char* str, int ch)
-{
-    char* last = nullptr;
-    char c;
-    for (; (c = *str); ++str) {
-        if (c == ch)
-            last = const_cast<char*>(str);
-    }
-    return last;
-}
-
-size_t strlen(const char* str)
-{
-    size_t len = 0;
-    while (*(str++))
-        ++len;
-    return len;
-}
-
-size_t strnlen(const char* str, size_t maxlen)
-{
-    size_t len = 0;
-    for (; len < maxlen && *str; str++)
-        len++;
-    return len;
-}
-
-int strcmp(const char* s1, const char* s2)
-{
-    for (; *s1 == *s2; ++s1, ++s2) {
-        if (*s1 == 0)
-            return 0;
-    }
-    return *(const u8*)s1 < *(const u8*)s2 ? -1 : 1;
-}
-
-char* strdup(const char* str)
-{
-    size_t len = strlen(str);
-    char* new_str = (char*)kmalloc(len + 1);
-    strcpy(new_str, str);
-    return new_str;
-}
-
-int memcmp(const void* v1, const void* v2, size_t n)
-{
-    auto* s1 = (const u8*)v1;
-    auto* s2 = (const u8*)v2;
-    while (n-- > 0) {
-        if (*s1++ != *s2++)
-            return s1[-1] < s2[-1] ? -1 : 1;
-    }
-    return 0;
-}
-
-int strncmp(const char* s1, const char* s2, size_t n)
-{
-    if (!n)
-        return 0;
-    do {
-        if (*s1 != *s2++)
-            return *(const unsigned char*)s1 - *(const unsigned char*)--s2;
-        if (*s1++ == 0)
-            break;
-    } while (--n);
-    return 0;
-}
-
-char* strstr(const char* haystack, const char* needle)
-{
-    char nch;
-    char hch;
-
-    if ((nch = *needle++) != 0) {
-        size_t len = strlen(needle);
-        do {
-            do {
-                if ((hch = *haystack++) == 0)
-                    return nullptr;
-            } while (hch != nch);
-        } while (strncmp(haystack, needle, len) != 0);
-        --haystack;
-    }
-    return const_cast<char*>(haystack);
-}
-
-[[noreturn]] void __cxa_pure_virtual()
-{
-    ASSERT_NOT_REACHED();
-}
-
-void* realloc(void* p, size_t s)
-{
-    return krealloc(p, s);
-}
-
-void free(void* p)
-{
-    return kfree(p);
-}
-
-[[noreturn]] void __stack_chk_fail()
-{
-    ASSERT_NOT_REACHED();
-}
-
-[[noreturn]] void __stack_chk_fail_local()
-{
-    ASSERT_NOT_REACHED();
-}
-}