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-rw-r--r--libraries/euler/allocator.cpp147
-rw-r--r--libraries/euler/cassert.cpp16
-rw-r--r--libraries/euler/cctype.cpp11
-rw-r--r--libraries/euler/cstdio.cpp102
-rw-r--r--libraries/euler/entry.cpp19
-rw-r--r--libraries/euler/include/cassert13
-rw-r--r--libraries/euler/include/cctype7
l---------libraries/euler/include/cstddef1
l---------libraries/euler/include/cstdint1
-rw-r--r--libraries/euler/include/cstdio19
-rw-r--r--libraries/euler/include/cstring14
-rw-r--r--libraries/euler/include/euler/syscall.hpp51
-rw-r--r--libraries/euler/syscall.asm88
13 files changed, 0 insertions, 489 deletions
diff --git a/libraries/euler/allocator.cpp b/libraries/euler/allocator.cpp
deleted file mode 100644
index 5242df1..0000000
--- a/libraries/euler/allocator.cpp
+++ /dev/null
@@ -1,147 +0,0 @@
-#include <euler/syscall.hpp>
-
-//i guess we could figure out which parts of the pages the kernel allocated to
-//load the application were not actually needed and add those to the memory
-//that is available to be allocated, but whatever.
-
-namespace euler::allocator {
-
- struct block_info {
- //vaddr, divisible by size
- uint64_t start;
- //power of 2, 0 for unused
- uint64_t size;
- };
-
- struct block_info_page {
- block_info infos[255];
- block_info_page *next;
- };
-
- static_assert(sizeof(block_info_page) == 4088);
-
- static block_info_page *first_bi_page = 0;
-
- static block_info *try_find_block(uint64_t start, uint64_t size) {
- for (block_info_page *bip = first_bi_page; bip; bip = bip->next)
- for (int i = 0; i < 255; ++i)
- if (bip->infos[i].start == start && bip->infos[i].size == size)
- return bip->infos + i;
- return 0;
- }
-
- static block_info *add_block(uint64_t start, uint64_t size) {
- for (block_info_page *bip = first_bi_page; bip; bip = bip->next)
- for (int i = 0; i < 255; ++i)
- if (bip->infos[i].size == 0) {
- bip->infos[i].start = start;
- bip->infos[i].size = size;
- return bip->infos + i;
- }
- block_info_page *new_bip = (block_info_page *)_syscall_get_new_pages(1);
- new_bip->infos[0].start = start;
- new_bip->infos[0].size = size;
- for (int i = 1; i < 255; ++i)
- new_bip->infos[i].size = 0;
- new_bip->next = first_bi_page;
- first_bi_page = new_bip;
- return new_bip->infos;
- }
-
- static block_info *find_minimal_block(uint64_t minimum_length) {
- block_info *minimal_so_far = 0;
- uint64_t length_so_far = UINT64_MAX;
- for (block_info_page *bip = first_bi_page; bip; bip = bip->next)
- for (int i = 0; i < 255; ++i)
- if (bip->infos[i].size == minimum_length)
- return bip->infos + i;
- else if (
- bip->infos[i].size > minimum_length &&
- bip->infos[i].size < length_so_far
- ) {
- minimal_so_far = bip->infos + i;
- length_so_far = bip->infos[i].size;
- }
- if (minimal_so_far != 0)
- return minimal_so_far;
- uint64_t pages_needed = (minimum_length - 1) / 4096 + 1;
- void *block_start = _syscall_get_new_pages(pages_needed);
- return add_block((uint64_t)block_start, pages_needed * 4096);
- }
-
- static void deallocate_aligned(uint64_t start, uint64_t length) {
- block_info *buddy = try_find_block(start ^ length, length);
- if (buddy) {
- buddy->size = 0;
- deallocate_aligned(start & ~length, length * 2);
- return;
- }
- add_block(start, length);
- }
-
- static void deallocate(void *start, uint64_t length) {
- uint64_t at = (uint64_t)start;
- uint64_t left = length;
- uint64_t i;
- for (i = 1; i <= left; i *= 2)
- if (at & i) {
- deallocate_aligned(at, i);
- at += i;
- left -= i;
- }
- for (i /= 2; left > 0; i /= 2)
- if (i <= left) {
- deallocate_aligned(at, i);
- at += i;
- left -= i;
- }
- }
-
- [[nodiscard]] static void *allocate(uint64_t length) {
- block_info *bi = find_minimal_block(length);
- void *to_return = (void *)bi->start;
- void *new_start = (void *)(bi->start + length);
- uint64_t new_length = bi->size - length;
- bi->size = 0;
- deallocate(new_start, new_length);
- return to_return;
- }
-
- static void deallocate_with_length(void *start) {
- uint64_t real_start = (uint64_t)start - 8;
- deallocate((void *)real_start, *(uint64_t *)real_start);
- }
-
- [[nodiscard]] static void *allocate_with_length(uint64_t length) {
- uint64_t *real_start = (uint64_t *)allocate(length + 8);
- *real_start = length + 8;
- return real_start + 1;
- }
-
-}
-
-using namespace euler::allocator;
-
-void operator delete[](void *start) {
- deallocate_with_length(start);
-}
-
-void operator delete(void *start) {
- deallocate_with_length(start);
-}
-
-void operator delete[](void *start, uint64_t) {
- deallocate_with_length(start);
-}
-
-void operator delete(void *start, uint64_t) {
- deallocate_with_length(start);
-}
-
-void *operator new[](uint64_t size) {
- return allocate_with_length(size);
-}
-
-void *operator new(uint64_t size) {
- return allocate_with_length(size);
-}
diff --git a/libraries/euler/cassert.cpp b/libraries/euler/cassert.cpp
deleted file mode 100644
index e811b38..0000000
--- a/libraries/euler/cassert.cpp
+++ /dev/null
@@ -1,16 +0,0 @@
-#include <cassert>
-
-namespace euler {
-
- [[noreturn]] void assert_failed(
- const char *, const char *, int, const char *
- ) {
- //TODO: print error and abort
- //we could just exit right now but i want to keep us in
- //the application so we can get a stack trace in gdb.
- while (1)
- ;
- }
-
-
-}
diff --git a/libraries/euler/cctype.cpp b/libraries/euler/cctype.cpp
deleted file mode 100644
index 98234bb..0000000
--- a/libraries/euler/cctype.cpp
+++ /dev/null
@@ -1,11 +0,0 @@
-#include <cctype>
-
-namespace std {
-
- int isspace(int ch) {
- return
- ch == ' ' || ch == '\n' || ch == '\t' ||
- ch == '\r' || ch == '\v' || ch == '\f';
- }
-
-}
diff --git a/libraries/euler/cstdio.cpp b/libraries/euler/cstdio.cpp
deleted file mode 100644
index 367e7e0..0000000
--- a/libraries/euler/cstdio.cpp
+++ /dev/null
@@ -1,102 +0,0 @@
-#include <euler/syscall.hpp>
-#include <cassert>
-#include <cstring>
-#include <cstdio>
-
-namespace euler {
-
- //read-only with no error bits for now
- struct file_t {
-
- syscall::file_handle handle;
-
- //TODO: variable size buffer? maybe a multiple of block size for device?
- char buffer[1024];
- //in bytes, aligned to buffer size; 1 for no buffer loaded
- uint64_t buffer_start;
-
- bool is_offset_in_buffer() {
- return
- buffer_start != 1 && offset >= buffer_start &&
- offset < buffer_start + 1024;
- }
-
- syscall::file_result ensure_offset_in_buffer() {
- if (is_offset_in_buffer())
- return syscall::file_result::success;
- uint64_t new_buffer_start = (offset / 1024) * 1024;
- uint64_t new_buffer_end = new_buffer_start + 1024;
- if (length < new_buffer_end)
- new_buffer_end = length;
- syscall::file_result result = _syscall_read_from_file(
- handle, new_buffer_start, new_buffer_end - new_buffer_start, buffer);
- if (result == syscall::file_result::success)
- buffer_start = new_buffer_start;
- return result;
- }
-
- uint64_t offset;
- uint64_t length;
-
- };
-
-}
-
-namespace std {
-
- FILE *fopen(const char *path, const char *mode) {
-
- assert(mode[0] == 'r' && mode[1] == '\0');
-
- euler::syscall::file_handle handle;
- euler::syscall::file_result result =
- _syscall_open_file(path, strlen(path), handle);
- if (result != euler::syscall::file_result::success)
- return 0;
-
- uint64_t length;
- result = _syscall_get_file_length(handle, length);
- if (result != euler::syscall::file_result::success) {
- _syscall_close_file(handle);
- return 0;
- }
-
- return new FILE {
- .handle = handle,
- .buffer = {},
- .buffer_start = 1,
- .offset = 0,
- .length = length
- };
-
- }
-
- int fclose(FILE *file) {
- _syscall_close_file(file->handle);
- delete file;
- return 0;
- }
-
- int fgetc(FILE *from) {
- if (from->offset >= from->length)
- return EOF;
- assert(
- from->ensure_offset_in_buffer() == euler::syscall::file_result::success);
- char ch = from->buffer[from->offset - from->buffer_start];
- ++from->offset;
- return ch;
- }
-
- int ungetc(int ch, FILE *from) {
- if (ch == EOF || from->offset == 0)
- return EOF;
- --from->offset;
- if (!from->is_offset_in_buffer()) {
- ++from->offset;
- return EOF;
- }
- from->buffer[from->offset - from->buffer_start] = ch;
- return ch;
- }
-
-}
diff --git a/libraries/euler/entry.cpp b/libraries/euler/entry.cpp
deleted file mode 100644
index 0bbffda..0000000
--- a/libraries/euler/entry.cpp
+++ /dev/null
@@ -1,19 +0,0 @@
-#include <euler/syscall.hpp>
-
-int main(int argc, char **argv);
-
-extern "C" [[noreturn]] void _entry() {
-
- //TODO: static constructors
-
- //TODO: get command line via system call and populate argc and argv.
- int argc = 0;
- char **argv = 0;
-
- int result = main(argc, argv);
-
- //TODO: static destructors
-
- _syscall_end_this_process(result);
-
-}
diff --git a/libraries/euler/include/cassert b/libraries/euler/include/cassert
deleted file mode 100644
index bc716a0..0000000
--- a/libraries/euler/include/cassert
+++ /dev/null
@@ -1,13 +0,0 @@
-#pragma once
-
-namespace euler {
- [[noreturn]] void assert_failed(
- const char *file, const char *function, int line, const char *condition);
-}
-
-#ifdef NDEBUG
-#define assert(condition) ((void)0)
-#else
-#define assert(condition) ((condition) ? ((void)0) : \
- euler::assert_failed(__FILE__, __func__, __LINE__, #condition))
-#endif
diff --git a/libraries/euler/include/cctype b/libraries/euler/include/cctype
deleted file mode 100644
index 087b191..0000000
--- a/libraries/euler/include/cctype
+++ /dev/null
@@ -1,7 +0,0 @@
-#pragma once
-
-namespace std {
-
- int isspace(int ch);
-
-}
diff --git a/libraries/euler/include/cstddef b/libraries/euler/include/cstddef
deleted file mode 120000
index 9eac9b6..0000000
--- a/libraries/euler/include/cstddef
+++ /dev/null
@@ -1 +0,0 @@
-../../../mintsuki-freestanding-headers/stddef.h \ No newline at end of file
diff --git a/libraries/euler/include/cstdint b/libraries/euler/include/cstdint
deleted file mode 120000
index b087235..0000000
--- a/libraries/euler/include/cstdint
+++ /dev/null
@@ -1 +0,0 @@
-../../../mintsuki-freestanding-headers/stdint.h \ No newline at end of file
diff --git a/libraries/euler/include/cstdio b/libraries/euler/include/cstdio
deleted file mode 100644
index 3bb293b..0000000
--- a/libraries/euler/include/cstdio
+++ /dev/null
@@ -1,19 +0,0 @@
-#pragma once
-
-#define EOF (-1)
-
-namespace euler {
- struct file_t;
-}
-
-namespace std {
-
- typedef euler::file_t FILE;
-
- FILE *fopen(const char *path, const char *mode);
- int fclose(FILE *file);
-
- int fgetc(FILE *from);
- int ungetc(int ch, FILE *from);
-
-}
diff --git a/libraries/euler/include/cstring b/libraries/euler/include/cstring
deleted file mode 100644
index 65d00dc..0000000
--- a/libraries/euler/include/cstring
+++ /dev/null
@@ -1,14 +0,0 @@
-#pragma once
-
-#include <cstddef>
-
-namespace std {
-
- static inline size_t strlen(const char *str) {
- size_t i = 0;
- while (str[i])
- ++i;
- return i;
- }
-
-}
diff --git a/libraries/euler/include/euler/syscall.hpp b/libraries/euler/include/euler/syscall.hpp
deleted file mode 100644
index 2dc88b8..0000000
--- a/libraries/euler/include/euler/syscall.hpp
+++ /dev/null
@@ -1,51 +0,0 @@
-#pragma once
-
-#include <cstdint>
-
-namespace euler::syscall {
-
- typedef uint32_t encoded_color;
- typedef int32_t exit_code;
- typedef uint64_t file_handle;
- typedef uint32_t key_packet;
-
- enum [[nodiscard]] file_result : uint64_t {
- success,
- bad_file_handle,
- device_error,
- file_system_corrupt,
- out_of_bounds,
- does_not_exist,
- directory
- };
-
-}
-
-extern "C" {
-
- euler::syscall::encoded_color _syscall_encode_color(
- uint8_t red, uint8_t green, uint8_t blue);
-
- void _syscall_get_framebuffer(
- euler::syscall::encoded_color *&ptr_out, uint32_t &width_out,
- uint32_t &height_out, uint32_t &pitch_out);
-
- euler::syscall::file_result _syscall_open_file(
- const char *path, uint64_t path_length, euler::syscall::file_handle &out);
-
- euler::syscall::file_result _syscall_get_file_length(
- euler::syscall::file_handle file, uint64_t &out);
-
- euler::syscall::file_result _syscall_read_from_file(
- euler::syscall::file_handle file,
- uint64_t start_offset, uint64_t length, void *into);
-
- [[noreturn]] void _syscall_end_this_process(euler::syscall::exit_code code);
-
- [[nodiscard]] void *_syscall_get_new_pages(uint64_t count);
-
- void _syscall_close_file(euler::syscall::file_handle file);
-
- euler::syscall::key_packet _syscall_read_key_packet();
-
-}
diff --git a/libraries/euler/syscall.asm b/libraries/euler/syscall.asm
deleted file mode 100644
index c76a641..0000000
--- a/libraries/euler/syscall.asm
+++ /dev/null
@@ -1,88 +0,0 @@
-bits 64
-
-section .text
-
-global _syscall_encode_color
-_syscall_encode_color:
- xor rax, rax
- and edi, 0xff
- and dx, 0xff
- shl si, 8
- shl edx, 16
- or di, si
- or edi, edx
- syscall
- ret
-
-global _syscall_get_framebuffer
-_syscall_get_framebuffer:
- push rcx
- push rdx
- push rsi
- push rdi
- mov rax, 1
- syscall
- pop rcx
- mov qword [rcx], rax
- pop rcx
- mov dword [rcx], edi
- pop rcx
- shr rdi, 32
- mov dword [rcx], edi
- pop rcx
- mov dword [rcx], esi
- ret
-
-global _syscall_open_file
-_syscall_open_file:
- mov rax, 2
- push rdx
- syscall
- pop rdx
- mov qword [rdx], rdi
- ret
-
-global _syscall_get_file_length
-_syscall_get_file_length:
- mov rax, 3
- push rsi
- syscall
- pop rsi
- mov qword [rsi], rdi
- ret
-
-global _syscall_read_from_file
-_syscall_read_from_file:
- mov rax, 4
- push rcx
- push rdx
- push rsi
- push rdi
- mov rdi, rsp
- syscall
- add rsp, 32
- ret
-
-global _syscall_end_this_process
-_syscall_end_this_process:
- mov rax, 5
- syscall
- ;does not return
-
-global _syscall_get_new_pages
-_syscall_get_new_pages:
- mov rax, 6
- syscall
- ret
-
-global _syscall_close_file
-_syscall_close_file:
- mov rax, 7
- syscall
- ret
-
-global _syscall_read_key_packet
-_syscall_read_key_packet:
- mov rax, 8
- syscall
- ret
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-21 16:12:52 +0000