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compare: Bananymous:609067cefa3685ef813eb6a68f115f173f189fae
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11 Commits
55c8a15983 ... 609067cefa

Author SHA1 Message Date
Bananymous 609067cefa Kernel: Cleanup internal CPUID functions declarations 2025-01-14 22:57:44 +02:00
Bananymous 9d497ad311 Kernel: Cleanup interrupt stub definitions 2025-01-14 22:55:06 +02:00
Bananymous 72059a9441 LibC: Redefine SEEK_* macros to match common systems 
some ports written in assembly seem to depend on this
 2025-01-14 22:52:13 +02:00
Bananymous ebecbb69ec LibC: Implement some mem* and str* functions in assembly 
This made them a lot faster on modern cpus with optimized rep stos and
rep movs
 2025-01-14 22:50:46 +02:00
Bananymous b129bab81a Kernel: Make mem* and str* functions weak symbols 2025-01-14 19:08:03 +02:00
Bananymous 14c70c5cc8 LibC: Make mem* and str* functions weak symbols 
This allows adding architecture dependent implementations while still
providing an general implementation
 2025-01-14 18:36:54 +02:00
Bananymous d62a67502e LibC: Remove global -fno-tree-loop-distribute-patterns flag 
This is only really needed for string.cpp where mem* and str* functions
are defined
 2025-01-14 18:35:33 +02:00
Bananymous 4b2c303873 LibC: Add weak_alias header that defines a weak_alias macro 2025-01-14 18:33:57 +02:00
Bananymous d189f00f38 Kernel: Null terminate tmpfs directory entries 2025-01-12 16:03:09 +02:00
Bananymous a5cf92b2ff Kernel: Use uint64_t instead of size_t for AML node conversion 
This allows 32 bit to compile again :)
 2024-12-30 06:27:49 +02:00
Bananymous 8c45249c06 LibC: Remove stdint.h as toolchain provides one 
I have no idea why i even had this written, it was just containing
compiler macros
 2024-12-30 06:26:17 +02:00
18 changed files with 285 additions and 581 deletions
Show Stats Expand all files Collapse all files

4
kernel/CMakeLists.txt
View File

@ -148,6 +148,10 @@ set(BAN_SOURCES
set(KLIBC_SOURCES
klibc/ctype.cpp
klibc/string.cpp
# Ehhh don't do this but for now libc uses the same stuff kernel can use
# This won't work after libc starts using sse implemetations tho
../userspace/libraries/LibC/arch/${BANAN_ARCH}/string.S
)
set(LIBFONT_SOURCES

231
kernel/arch/i686/interrupts.S
View File

@ -186,211 +186,26 @@ isr 29
isr 30
isr 31
irq 0
irq 1
irq 2
irq 3
irq 4
irq 5
irq 6
irq 7
irq 8
irq 9
irq 10
irq 11
irq 12
irq 13
irq 14
irq 15
irq 16
irq 17
irq 18
irq 19
irq 20
irq 21
irq 22
irq 23
irq 24
irq 25
irq 26
irq 27
irq 28
irq 29
irq 30
irq 31
irq 32
irq 33
irq 34
irq 35
irq 36
irq 37
irq 38
irq 39
irq 40
irq 41
irq 42
irq 43
irq 44
irq 45
irq 46
irq 47
irq 48
irq 49
irq 50
irq 51
irq 52
irq 53
irq 54
irq 55
irq 56
irq 57
irq 58
irq 59
irq 60
irq 61
irq 62
irq 63
irq 64
irq 65
irq 66
irq 67
irq 68
irq 69
irq 70
irq 71
irq 72
irq 73
irq 74
irq 75
irq 76
irq 77
irq 78
irq 79
irq 80
irq 81
irq 82
irq 83
irq 84
irq 85
irq 86
irq 87
irq 88
irq 89
irq 90
irq 91
irq 92
irq 93
irq 94
irq 95
irq 96
irq 97
irq 98
irq 99
irq 100
irq 101
irq 102
irq 103
irq 104
irq 105
irq 106
irq 107
irq 108
irq 109
irq 110
irq 111
irq 112
irq 113
irq 114
irq 115
irq 116
irq 117
irq 118
irq 119
irq 120
irq 121
irq 122
irq 123
irq 124
irq 125
irq 126
irq 127
irq 128
irq 129
irq 130
irq 131
irq 132
irq 133
irq 134
irq 135
irq 136
irq 137
irq 138
irq 139
irq 140
irq 141
irq 142
irq 143
irq 144
irq 145
irq 146
irq 147
irq 148
irq 149
irq 150
irq 151
irq 152
irq 153
irq 154
irq 155
irq 156
irq 157
irq 158
irq 159
irq 160
irq 161
irq 162
irq 163
irq 164
irq 165
irq 166
irq 167
irq 168
irq 169
irq 170
irq 171
irq 172
irq 173
irq 174
irq 175
irq 176
irq 177
irq 178
irq 179
irq 180
irq 181
irq 182
irq 183
irq 184
irq 185
irq 186
irq 187
irq 188
irq 189
irq 190
irq 191
irq 192
irq 193
irq 194
irq 195
irq 196
irq 197
irq 198
irq 199
irq 200
irq 201
irq 202
irq 203
irq 204
irq 205
irq 206
irq 207
.irp i, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, \
10, 11, 12, 13, 14, 15, 16, 17, 18, 19, \
20, 21, 22, 23, 24, 25, 26, 27, 28, 29, \
30, 31, 32, 33, 34, 35, 36, 37, 38, 39, \
40, 41, 42, 43, 44, 45, 46, 47, 48, 49, \
50, 51, 52, 53, 54, 55, 56, 57, 58, 59, \
60, 61, 62, 63, 64, 65, 66, 67, 68, 69, \
70, 71, 72, 73, 74, 75, 76, 77, 78, 79, \
80, 81, 82, 83, 84, 85, 86, 87, 88, 89, \
90, 91, 92, 93, 94, 95, 96, 97, 98, 99, \
100,101,102,103,104,105,106,107,108,109, \
110,111,112,113,114,115,116,117,118,119, \
120,121,122,123,124,125,126,127,128,129, \
130,131,132,133,134,135,136,137,138,139, \
140,141,142,143,144,145,146,147,148,149, \
150,151,152,153,154,155,156,157,158,159, \
160,161,162,163,164,165,166,167,168,169, \
170,171,172,173,174,175,176,177,178,179, \
180,181,182,183,184,185,186,187,188,189, \
190,191,192,193,194,195,196,197,198,199, \
200,201,202,203,204,205,206,207
irq \i
.endr

231
kernel/arch/x86_64/interrupts.S
View File

@ -140,211 +140,26 @@ isr 29
isr 30
isr 31
irq 0
irq 1
irq 2
irq 3
irq 4
irq 5
irq 6
irq 7
irq 8
irq 9
irq 10
irq 11
irq 12
irq 13
irq 14
irq 15
irq 16
irq 17
irq 18
irq 19
irq 20
irq 21
irq 22
irq 23
irq 24
irq 25
irq 26
irq 27
irq 28
irq 29
irq 30
irq 31
irq 32
irq 33
irq 34
irq 35
irq 36
irq 37
irq 38
irq 39
irq 40
irq 41
irq 42
irq 43
irq 44
irq 45
irq 46
irq 47
irq 48
irq 49
irq 50
irq 51
irq 52
irq 53
irq 54
irq 55
irq 56
irq 57
irq 58
irq 59
irq 60
irq 61
irq 62
irq 63
irq 64
irq 65
irq 66
irq 67
irq 68
irq 69
irq 70
irq 71
irq 72
irq 73
irq 74
irq 75
irq 76
irq 77
irq 78
irq 79
irq 80
irq 81
irq 82
irq 83
irq 84
irq 85
irq 86
irq 87
irq 88
irq 89
irq 90
irq 91
irq 92
irq 93
irq 94
irq 95
irq 96
irq 97
irq 98
irq 99
irq 100
irq 101
irq 102
irq 103
irq 104
irq 105
irq 106
irq 107
irq 108
irq 109
irq 110
irq 111
irq 112
irq 113
irq 114
irq 115
irq 116
irq 117
irq 118
irq 119
irq 120
irq 121
irq 122
irq 123
irq 124
irq 125
irq 126
irq 127
irq 128
irq 129
irq 130
irq 131
irq 132
irq 133
irq 134
irq 135
irq 136
irq 137
irq 138
irq 139
irq 140
irq 141
irq 142
irq 143
irq 144
irq 145
irq 146
irq 147
irq 148
irq 149
irq 150
irq 151
irq 152
irq 153
irq 154
irq 155
irq 156
irq 157
irq 158
irq 159
irq 160
irq 161
irq 162
irq 163
irq 164
irq 165
irq 166
irq 167
irq 168
irq 169
irq 170
irq 171
irq 172
irq 173
irq 174
irq 175
irq 176
irq 177
irq 178
irq 179
irq 180
irq 181
irq 182
irq 183
irq 184
irq 185
irq 186
irq 187
irq 188
irq 189
irq 190
irq 191
irq 192
irq 193
irq 194
irq 195
irq 196
irq 197
irq 198
irq 199
irq 200
irq 201
irq 202
irq 203
irq 204
irq 205
irq 206
irq 207
.irp i, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, \
10, 11, 12, 13, 14, 15, 16, 17, 18, 19, \
20, 21, 22, 23, 24, 25, 26, 27, 28, 29, \
30, 31, 32, 33, 34, 35, 36, 37, 38, 39, \
40, 41, 42, 43, 44, 45, 46, 47, 48, 49, \
50, 51, 52, 53, 54, 55, 56, 57, 58, 59, \
60, 61, 62, 63, 64, 65, 66, 67, 68, 69, \
70, 71, 72, 73, 74, 75, 76, 77, 78, 79, \
80, 81, 82, 83, 84, 85, 86, 87, 88, 89, \
90, 91, 92, 93, 94, 95, 96, 97, 98, 99, \
100,101,102,103,104,105,106,107,108,109, \
110,111,112,113,114,115,116,117,118,119, \
120,121,122,123,124,125,126,127,128,129, \
130,131,132,133,134,135,136,137,138,139, \
140,141,142,143,144,145,146,147,148,149, \
150,151,152,153,154,155,156,157,158,159, \
160,161,162,163,164,165,166,167,168,169, \
170,171,172,173,174,175,176,177,178,179, \
180,181,182,183,184,185,186,187,188,189, \
190,191,192,193,194,195,196,197,198,199, \
200,201,202,203,204,205,206,207
irq \i
.endr

2
kernel/include/kernel/ACPI/AML/Node.h
View File

@ -278,7 +278,7 @@ namespace Kernel::ACPI::AML
BAN::ErrorOr<NameString> parse_name_string(BAN::ConstByteSpan& aml_data);
BAN::ErrorOr<BAN::ConstByteSpan> parse_pkg(BAN::ConstByteSpan& aml_data);
BAN::ErrorOr<Node> convert_node(Node&& source, uint8_t conversion, size_t max_length);
BAN::ErrorOr<Node> convert_node(Node&& source, uint8_t conversion, uint64_t max_length);
BAN::ErrorOr<Node> convert_node(Node&& source, const Node& target);
BAN::ErrorOr<Node> evaluate_node(const Scope& node_path, const Node& node);

2
kernel/include/kernel/ACPI/AML/OpRegion.h
View File

@ -10,7 +10,7 @@ namespace Kernel::ACPI::AML
BAN::ErrorOr<void> parse_index_field_op(ParseContext& context);
BAN::ErrorOr<void> parse_bank_field_op(ParseContext& context);
BAN::ErrorOr<Node> convert_from_field_unit(const Node& node, uint8_t conversion, size_t max_length);
BAN::ErrorOr<Node> convert_from_field_unit(const Node& node, uint8_t conversion, uint64_t max_length);
BAN::ErrorOr<void> store_to_field_unit(const Node& source, const Node& target);
}

2
kernel/kernel/ACPI/AML/Node.cpp
View File

@ -551,7 +551,7 @@ namespace Kernel::ACPI::AML
}
}
BAN::ErrorOr<Node> convert_node(Node&& source, uint8_t conversion, size_t max_length)
BAN::ErrorOr<Node> convert_node(Node&& source, uint8_t conversion, uint64_t max_length)
{
dprintln_if(AML_DUMP_FUNCTION_CALLS, "convert_node {} -> 0b{3b}", source, conversion);

2
kernel/kernel/ACPI/AML/OpRegion.cpp
View File

@ -652,7 +652,7 @@ namespace Kernel::ACPI::AML
return {};
}
BAN::ErrorOr<Node> convert_from_field_unit(const Node& source, uint8_t conversion, size_t max_length)
BAN::ErrorOr<Node> convert_from_field_unit(const Node& source, uint8_t conversion, uint64_t max_length)
{
ASSERT(source.type == Node::Type::FieldUnit);

5
kernel/kernel/CPUID.cpp
View File

@ -2,12 +2,13 @@
namespace CPUID
{
void get_cpuid(uint32_t code, uint32_t* out)
static inline void get_cpuid(uint32_t code, uint32_t* out)
{
asm volatile("cpuid" : "=a"(out[0]), "=b"(out[1]), "=c"(out[2]), "=d"(out[3]) : "a"(code));
}
void get_cpuid_string(uint32_t code, uint32_t* out)
static inline void get_cpuid_string(uint32_t code, uint32_t* out)
{
asm volatile ("cpuid": "=a"(out[0]), "=b"(out[0]), "=d"(out[1]), "=c"(out[2]) : "a"(code));
}

1
kernel/kernel/FS/TmpFS/Inode.cpp
View File

@ -473,6 +473,7 @@ namespace Kernel
dirp->d_ino = entry.ino;
dirp->d_type = entry.type;
strncpy(dirp->d_name, entry.name, entry.name_len);
dirp->d_name[entry.name_len] = '\0';
dirp++;
}

42
kernel/klibc/string.cpp
View File

@ -1,7 +1,8 @@
#include <errno.h>
#include <string.h>
#include <sys/weak_alias.h>
int memcmp(const void* s1, const void* s2, size_t n)
extern "C" int _memcmp(const void* s1, const void* s2, size_t n)
{
auto* u1 = static_cast<const unsigned char*>(s1);
auto* u2 = static_cast<const unsigned char*>(s2);
@ -10,8 +11,9 @@ int memcmp(const void* s1, const void* s2, size_t n)
return u1[i] - u2[i];
return 0;
}
weak_alias(_memcmp, memcmp);
void* memcpy(void* __restrict s1, const void* __restrict s2, size_t n)
extern "C" void* _memcpy(void* __restrict s1, const void* __restrict s2, size_t n)
{
auto* dst = static_cast<unsigned char*>(s1);
auto* src = static_cast<const unsigned char*>(s2);
@ -19,8 +21,9 @@ void* memcpy(void* __restrict s1, const void* __restrict s2, size_t n)
dst[i] = src[i];
return s1;
}
weak_alias(_memcpy, memcpy);
void* memmove(void* s1, const void* s2, size_t n)
extern "C" void* _memmove(void* s1, const void* s2, size_t n)
{
auto* dst = static_cast<unsigned char*>(s1);
auto* src = static_cast<const unsigned char*>(s2);
@ -36,40 +39,57 @@ void* memmove(void* s1, const void* s2, size_t n)
}
return s1;
}
weak_alias(_memmove, memmove);
void* memset(void* s, int c, size_t n)
extern "C" void* _memset(void* s, int c, size_t n)
{
auto* u = static_cast<unsigned char*>(s);
for (size_t i = 0; i < n; i++)
u[i] = c;
return s;
}
weak_alias(_memset, memset);
size_t strlen(const char* str)
extern "C" size_t _strlen(const char* str)
{
size_t len = 0;
while (str[len])
len++;
return len;
}
weak_alias(_strlen, strlen);
char* strcpy(char* __restrict dst, const char* __restrict src)
extern "C" char* _stpcpy(char* __restrict dst, const char* __restrict src)
{
size_t i = 0;
for (; src[i]; i++)
dst[i] = src[i];
dst[i] = '\0';
return dst;
return &dst[i];
}
weak_alias(_stpcpy, stpcpy);
char* strncpy(char* __restrict dst, const char* __restrict src, size_t len)
extern "C" char* _stpncpy(char* __restrict dst, const char* __restrict src, size_t n)
{
size_t i = 0;
for (; i < len && src[i]; i++)
for (; src[i] && n; i++, n--)
dst[i] = src[i];
if (i < len)
for (; n; i++, n--)
dst[i] = '\0';
return dst;
return &dst[i];
}
weak_alias(_stpncpy, stpncpy);
char* strcpy(char* __restrict__ dest, const char* __restrict__ src)
{
stpcpy(dest, src);
return dest;
}
char* strncpy(char* __restrict__ dest, const char* __restrict__ src, size_t n)
{
stpncpy(dest, src, n);
return dest;
}
const char* strerrordesc_np(int error)

3
userspace/libraries/LibC/CMakeLists.txt
View File

@ -45,6 +45,7 @@ set(LIBC_SOURCES
icxxabi.cpp
arch/${BANAN_ARCH}/setjmp.S
arch/${BANAN_ARCH}/string.S
../../../BAN/BAN/Assert.cpp
)
@ -52,7 +53,7 @@ set(LIBC_SOURCES
add_library(objlibc OBJECT ${LIBC_SOURCES})
target_compile_definitions(objlibc PRIVATE __arch=${BANAN_ARCH})
target_compile_options(objlibc PRIVATE -O2 -g -Wstack-usage=512 -fno-tree-loop-distribute-patterns -fno-exceptions -fpic -nolibc)
target_compile_options(objlibc PRIVATE -O2 -g -Wstack-usage=512 -fno-exceptions -fpic -nolibc)
target_compile_options(objlibc PUBLIC -Wall -Wextra -Werror -Wno-error=stack-usage=)
function(add_crtx crtx)

85
userspace/libraries/LibC/arch/i686/string.S Normal file
View File

@ -0,0 +1,85 @@
.global memchr
memchr:
xchgl 4(%esp), %edi
movl 8(%esp), %eax
movl 12(%esp), %ecx
repne scasb
xorl %eax, %eax
testl %ecx, %ecx
cmovnzl %edi, %eax
movl 4(%esp), %edi
ret
.global memcmp
memcmp:
xchgl 4(%esp), %edi
xchgl 8(%esp), %esi
movl 12(%esp), %ecx
repe cmpsb
jne .memcmp_not_equal
xorl %eax, %eax
jmp .memcmp_done
.memcmp_not_equal:
movzbl -1(%edi), %eax
movzbl -1(%esi), %ecx
subl %ecx, %eax
.memcmp_done:
movl 4(%esp), %edi
movl 8(%esp), %esi
ret
.global memcpy
memcpy:
xchgl 4(%esp), %edi
xchgl 8(%esp), %esi
movl 12(%esp), %ecx
movl %edi, %edx
rep movsb
movl 4(%esp), %edi
movl 8(%esp), %esi
movl %edx, %eax
ret
.global memmove
memmove:
xchgl 4(%esp), %edi
xchgl 8(%esp), %esi
movl 12(%esp), %ecx
movl %edi, %edx
cmpl %edi, %esi
jb .memmove_slow
rep movsb
.memmove_done:
movl 4(%esp), %edi
movl 8(%esp), %esi
movl %edx, %eax
ret
.memmove_slow:
leal -1(%edi, %ecx), %edi
leal -1(%esi, %ecx), %esi
std
rep movsb
cld
jmp .memmove_done
.global memset
memset:
xchgl 4(%esp), %edi
movl 8(%esp), %eax
movl 12(%esp), %ecx
movl %edi, %edx
rep stosb
movl 4(%esp), %edi
movl %edx, %eax
ret
.global strlen
strlen:
xchgl 4(%esp), %edi
xorb %al, %al
movl $-1, %ecx
repne scasb
movl 4(%esp), %edi
movl $-2, %eax
subl %ecx, %eax
ret

62
userspace/libraries/LibC/arch/x86_64/string.S Normal file
View File

@ -0,0 +1,62 @@
.global memchr
memchr:
movb %sil, %al
movq %rdx, %rcx
repne scasb
xorq %rax, %rax
testq %rcx, %rcx
cmovnzq %rdi, %rax
ret
.global memcmp
memcmp:
movq %rdx, %rcx
repe cmpsb
jne .memcmp_not_equal
xorq %rax, %rax
ret
.memcmp_not_equal:
movzbl -1(%rdi), %eax
movzbl -1(%rsi), %ecx
subq %rcx, %rax
ret
.global memcpy
memcpy:
movq %rdi, %rax
movq %rdx, %rcx
movq %rdi, %rdx
rep movsb
movq %rdx, %rax
ret
.global memmove
memmove:
cmpq %rdi, %rsi
jae memcpy
leaq -1(%rdi, %rdx), %rdi
leaq -1(%rsi, %rdx), %rsi
movq %rdx, %rcx
std
rep movsb
cld
leaq 1(%rdi), %rax
ret
.global memset
memset:
movq %rdi, %r8
movb %sil, %al
movq %rdx, %rcx
rep stosb
movq %r8, %rax
ret
.global strlen
strlen:
xorb %al, %al
movq $-1, %rcx
repne scasb
movq $-2, %rax
subq %rcx, %rax
ret

6
userspace/libraries/LibC/include/fcntl.h
View File

@ -32,9 +32,9 @@ __BEGIN_DECLS
#define F_WRLCK 3
// NOTE: also defined in stdio.h
#define SEEK_SET 1
#define SEEK_CUR 2
#define SEEK_END 3
#define SEEK_SET 0
#define SEEK_CUR 1
#define SEEK_END 2
/* bits 0-3 */
#define O_RDONLY 0x00001

117
userspace/libraries/LibC/include/stdint.h
View File

@ -1,117 +0,0 @@
#ifndef _STDINT_H
#define _STDINT_H 1
// https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/stdint.h.html
#include <sys/cdefs.h>
__BEGIN_DECLS
typedef __INT8_TYPE__ int8_t;
typedef __INT16_TYPE__ int16_t;
typedef __INT32_TYPE__ int32_t;
typedef __INT64_TYPE__ int64_t;
typedef __UINT8_TYPE__ uint8_t;
typedef __UINT16_TYPE__ uint16_t;
typedef __UINT32_TYPE__ uint32_t;
typedef __UINT64_TYPE__ uint64_t;
typedef __INT_LEAST8_TYPE__ int_least8_t;
typedef __INT_LEAST16_TYPE__ int_least16_t;
typedef __INT_LEAST32_TYPE__ int_least32_t;
typedef __INT_LEAST64_TYPE__ int_least64_t;
typedef __UINT_LEAST8_TYPE__ uint_least8_t;
typedef __UINT_LEAST16_TYPE__ uint_least16_t;
typedef __UINT_LEAST32_TYPE__ uint_least32_t;
typedef __UINT_LEAST64_TYPE__ uint_least64_t;
typedef __INT_FAST8_TYPE__ int_fast8_t;
typedef __INT_FAST16_TYPE__ int_fast16_t;
typedef __INT_FAST32_TYPE__ int_fast32_t;
typedef __INT_FAST64_TYPE__ int_fast64_t;
typedef __UINT_FAST8_TYPE__ uint_fast8_t;
typedef __UINT_FAST16_TYPE__ uint_fast16_t;
typedef __UINT_FAST32_TYPE__ uint_fast32_t;
typedef __UINT_FAST64_TYPE__ uint_fast64_t;
typedef __INTPTR_TYPE__ intptr_t;
typedef __UINTPTR_TYPE__ uintptr_t;
// FIXME: is this the correct?
typedef int64_t intmax_t;
typedef uint64_t uintmax_t;
#define INT8_MIN (-INT8_MAX - 1)
#define INT16_MIN (-INT16_MAX - 1)
#define INT32_MIN (-INT32_MAX - 1)
#define INT64_MIN (-INT64_MAX - 1)
#define INT8_MAX __INT8_MAX__
#define INT16_MAX __INT16_MAX__
#define INT32_MAX __INT32_MAX__
#define INT64_MAX __INT64_MAX__
#define UINT8_MAX __UINT8_MAX__
#define UINT16_MAX __UINT16_MAX__
#define UINT32_MAX __UINT32_MAX__
#define UINT64_MAX __UINT64_MAX__
#define INT_LEAST8_MIN (-INT_LEAST8_MAX - 1)
#define INT_LEAST16_MIN (-INT_LEAST16_MAX - 1)
#define INT_LEAST32_MIN (-INT_LEAST32_MAX - 1)
#define INT_LEAST64_MIN (-INT_LEAST64_MAX - 1)
#define INT_LEAST8_MAX __INT_LEAST8_MAX__
#define INT_LEAST16_MAX __INT_LEAST16_MAX__
#define INT_LEAST32_MAX __INT_LEAST32_MAX__
#define INT_LEAST64_MAX __INT_LEAST64_MAX__
#define UINT_LEAST8_MAX __UINT_LEAST8_MAX__
#define UINT_LEAST16_MAX __UINT_LEAST16_MAX__
#define UINT_LEAST32_MAX __UINT_LEAST32_MAX__
#define UINT_LEAST64_MAX __UINT_LEAST64_MAX__
#define INT_FAST8_MIN (-INT_FAST8_MAX - 1)
#define INT_FAST16_MIN (-INT_FAST16_MAX - 1)
#define INT_FAST32_MIN (-INT_FAST32_MAX - 1)
#define INT_FAST64_MIN (-INT_FAST64_MAX - 1)
#define INT_FAST8_MAX __INT_FAST8_MAX__
#define INT_FAST16_MAX __INT_FAST16_MAX__
#define INT_FAST32_MAX __INT_FAST32_MAX__
#define INT_FAST64_MAX __INT_FAST64_MAX__
#define UINT_FAST8_MAX __UINT_FAST8_MAX__
#define UINT_FAST16_MAX __UINT_FAST16_MAX__
#define UINT_FAST32_MAX __UINT_FAST32_MAX__
#define UINT_FAST64_MAX __UINT_FAST64_MAX__
#define INTPTR_MIN (-INTPTR_MAX - 1)
#define INTPTR_MAX __INTPTR_MAX__
#define UINTPTR_MAX __UINTPTR_MAX__
// FIXME: is this the correct?
#define INTMAX_MIN INT64_MIN
#define INTMAX_MAX INT64_MAX
#define UINTMAX_MAX UINT64_MAX
#define PTRDIFF_MIN -65535
#define PTRDIFF_MAX +65535
#define SIG_ATOMIC_MIN __SIG_ATOMIC_MIN__
#define SIG_ATOMIC_MAX __SIG_ATOMIC_MAX__
#define SIZE_MAX __SIZE_MAX__
#define WCHAR_MIN __WCHAR_MIN__
#define WCHAR_MAX __WCHAR_MAX__
#define WINT_MIN __WINT_MIN__
#define WINT_MAX __WINT_MAX__
__END_DECLS
#endif

6
userspace/libraries/LibC/include/stdio.h
View File

@ -35,9 +35,9 @@ typedef off_t fpos_t;
#define _IONBF 3
// NOTE: also defined in fcntl.h
#define SEEK_SET 1
#define SEEK_CUR 2
#define SEEK_END 3
#define SEEK_SET 0
#define SEEK_CUR 1
#define SEEK_END 2
#define FILENAME_MAX 256
#define FOPEN_MAX 16

7
userspace/libraries/LibC/include/sys/weak_alias.h Normal file
View File

@ -0,0 +1,7 @@
#ifndef _SYS_WEAK_ALIAS
#define _SYS_WEAK_ALIAS 1
#define weak_alias(name, aliasname) _weak_alias (name, aliasname)
#define _weak_alias(name, aliasname) extern __typeof (name) aliasname __attribute__ ((weak, alias (#name)))
#endif

58
userspace/libraries/LibC/string.cpp
View File

@ -7,8 +7,13 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/weak_alias.h>
void* memccpy(void* __restrict s1, const void* __restrict s2, int c, size_t n)
#if defined(__GNUC__) && !defined(__clang__)
#pragma GCC optimize "no-tree-loop-distribute-patterns"
#endif
extern "C" void* _memccpy(void* __restrict s1, const void* __restrict s2, int c, size_t n)
{
unsigned char* dst = static_cast<unsigned char*>(s1);
const unsigned char* src = static_cast<const unsigned char*>(s2);
@ -17,8 +22,9 @@ void* memccpy(void* __restrict s1, const void* __restrict s2, int c, size_t n)
return dst + i + 1;
return nullptr;
}
weak_alias(_memccpy, memccpy);
void* memchr(const void* s, int c, size_t n)
extern "C" void* _memchr(const void* s, int c, size_t n)
{
const unsigned char* u = static_cast<const unsigned char*>(s);
for (size_t i = 0; i < n; i++)
@ -26,20 +32,20 @@ void* memchr(const void* s, int c, size_t n)
return const_cast<unsigned char*>(u + i);
return nullptr;
}
weak_alias(_memchr, memchr);
int memcmp(const void* s1, const void* s2, size_t n)
extern "C" int _memcmp(const void* s1, const void* s2, size_t n)
{
const unsigned char* a = static_cast<const unsigned char*>(s1);
const unsigned char* b = static_cast<const unsigned char*>(s2);
for (size_t i = 0; i < n; i++)
if (a[i] != b[i])
return a[i] - b[i];
return 0;
}
weak_alias(_memcmp, memcmp);
void* memcpy(void* __restrict__ dstp, const void* __restrict__ srcp, size_t n)
extern "C" void* _memcpy(void* __restrict__ dstp, const void* __restrict__ srcp, size_t n)
{
unsigned char* dst = static_cast<unsigned char*>(dstp);
const unsigned char* src = static_cast<const unsigned char*>(srcp);
@ -47,12 +53,12 @@ void* memcpy(void* __restrict__ dstp, const void* __restrict__ srcp, size_t n)
dst[i] = src[i];
return dstp;
}
weak_alias(_memcpy, memcpy);
void* memmove(void* destp, const void* srcp, size_t n)
extern "C" void* _memmove(void* destp, const void* srcp, size_t n)
{
unsigned char* dest = static_cast<unsigned char*>(destp);
const unsigned char* src = static_cast<const unsigned char*>(srcp);
if (dest < src)
{
for (size_t i = 0; i < n; i++)
@ -63,19 +69,20 @@ void* memmove(void* destp, const void* srcp, size_t n)
for (size_t i = 1; i <= n; i++)
dest[n - i] = src[n - i];
}
return destp;
}
weak_alias(_memmove, memmove);
void* memset(void* s, int c, size_t n)
extern "C" void* _memset(void* s, int c, size_t n)
{
unsigned char* p = static_cast<unsigned char*>(s);
for (size_t i = 0; i < n; i++)
p[i] = c;
return s;
}
weak_alias(_memset, memset);
int strcmp(const char* s1, const char* s2)
extern "C" int _strcmp(const char* s1, const char* s2)
{
const unsigned char* u1 = (unsigned char*)s1;
const unsigned char* u2 = (unsigned char*)s2;
@ -84,8 +91,9 @@ int strcmp(const char* s1, const char* s2)
break;
return *u1 - *u2;
}
weak_alias(_strcmp, strcmp);
int strncmp(const char* s1, const char* s2, size_t n)
extern "C" int _strncmp(const char* s1, const char* s2, size_t n)
{
if (n == 0)
return 0;
@ -96,8 +104,9 @@ int strncmp(const char* s1, const char* s2, size_t n)
break;
return *u1 - *u2;
}
weak_alias(_strncmp, strncmp);
char* stpcpy(char* __restrict__ dest, const char* __restrict__ src)
extern "C" char* _stpcpy(char* __restrict__ dest, const char* __restrict__ src)
{
size_t i = 0;
for (; src[i]; i++)
@ -105,8 +114,9 @@ char* stpcpy(char* __restrict__ dest, const char* __restrict__ src)
dest[i] = '\0';
return &dest[i];
}
weak_alias(_stpcpy, stpcpy);
char* stpncpy(char* __restrict__ dest, const char* __restrict__ src, size_t n)
extern "C" char* _stpncpy(char* __restrict__ dest, const char* __restrict__ src, size_t n)
{
size_t i = 0;
for (; src[i] && n; i++, n--)
@ -115,6 +125,7 @@ char* stpncpy(char* __restrict__ dest, const char* __restrict__ src, size_t n)
dest[i] = '\0';
return &dest[i];
}
weak_alias(_stpncpy, stpncpy);
char* strcpy(char* __restrict__ dest, const char* __restrict__ src)
{
@ -202,31 +213,30 @@ char* strndup(const char* str, size_t size)
return new_str;
}
size_t strlen(const char* str)
extern "C" size_t _strlen(const char* str)
{
size_t len = 0;
while (str[len])
len++;
return len;
}
weak_alias(_strlen, strlen);
size_t strnlen(const char* str, size_t maxlen)
extern "C" size_t _strnlen(const char* str, size_t maxlen)
{
size_t len = 0;
while (len < maxlen && str[len])
len++;
return len;
}
weak_alias(_strnlen, strnlen);
char* strchr(const char* str, int c)
{
while (*str)
{
if (*str == (char)c)
return (char*)str;
str++;
}
return (*str == (char)c) ? (char*)str : nullptr;
if (c == '\0')
return const_cast<char*>(str + strlen(str));
char* result = strchrnul(str, c);
return *result ? result : nullptr;
}
char* strchrnul(const char* str, int c)
@ -237,7 +247,7 @@ char* strchrnul(const char* str, int c)
return (char*)str;
str++;
}
return (char*)str;
return const_cast<char*>(str);
}
char* strrchr(const char* str, int c)