Architectural Support: x86_64 (#37)

[lunaix-os.git] / lunaix-os / arch / i386 / boot / mb_parser.c

diff --git a/lunaix-os/arch/i386/boot/mb_parser.c b/lunaix-os/arch/i386/boot/mb_parser.c
deleted file mode 100644 (file)
index 81e2716..0000000
--- a/lunaix-os/arch/i386/boot/mb_parser.c
+++ /dev/null
@@ -1,194 +0,0 @@
-#define __BOOT_CODE__
-
-#include <lunaix/boot_generic.h>
-#include <sys/boot/bstage.h>
-#include <sys/boot/multiboot.h>
-#include <sys/mm/mempart.h>
-
-#define BHCTX_ALLOC 4096
-
-u8_t bhctx_buffer[BHCTX_ALLOC] boot_bss;
-
-#define check_buffer(ptr)                                                      \
-    if ((ptr) >= ((ptr_t)bhctx_buffer + BHCTX_ALLOC)) {                        \
-        asm("ud2");                                                            \
-    }
-
-size_t boot_text
-mb_memcpy(u8_t* destination, u8_t* base, unsigned int size)
-{
-    unsigned int i = 0;
-    for (; i < size; i++) {
-        *(destination + i) = *(base + i);
-    }
-    return i;
-}
-
-size_t boot_text
-mb_strcpy(char* destination, char* base)
-{
-    int i = 0;
-    char c = 0;
-    while ((c = base[i])) {
-        destination[i] = c;
-        i++;
-    }
-
-    destination[++i] = 0;
-
-    return i;
-}
-
-size_t boot_text
-mb_strlen(char* s)
-{
-    int i = 0;
-    while (s[i++])
-        ;
-    return i;
-}
-
-size_t boot_text
-mb_parse_cmdline(struct boot_handoff* bhctx, void* buffer, char* cmdline)
-{
-#define SPACE ' '
-
-    size_t slen = mb_strlen(cmdline);
-
-    if (!slen) {
-        return 0;
-    }
-
-    mb_memcpy(buffer, (u8_t*)cmdline, slen);
-
-    cmdline = (char*)buffer;
-    buffer = &cmdline[slen];
-
-    char c, prev = SPACE;
-    int i = 0, argc = 0;
-    ptr_t argptr = (ptr_t)cmdline;
-
-    while ((c = cmdline[i])) {
-        if (c == SPACE && prev != SPACE) {
-            ((ptr_t*)buffer)[argc++] = argptr;
-        } else if (c != SPACE && prev == SPACE) {
-            argptr = (ptr_t)&cmdline[i];
-        }
-        prev = c;
-        i++;
-    }
-
-    bhctx->kexec.argv = (char**)buffer;
-    bhctx->kexec.argc = argc;
-
-    return slen + argc * sizeof(ptr_t);
-}
-
-size_t boot_text
-mb_parse_mmap(struct boot_handoff* bhctx,
-              struct multiboot_info* mb,
-              void* buffer)
-{
-    struct multiboot_mmap_entry* mb_mmap =
-      (struct multiboot_mmap_entry*)mb->mmap_addr;
-    size_t mmap_len = mb->mmap_length / sizeof(struct multiboot_mmap_entry);
-
-    struct boot_mmapent* bmmap = (struct boot_mmapent*)buffer;
-    for (size_t i = 0; i < mmap_len; i++) {
-        struct boot_mmapent* bmmapent = &bmmap[i];
-        struct multiboot_mmap_entry* mb_mapent = &mb_mmap[i];
-
-        if (mb_mapent->type == MULTIBOOT_MEMORY_AVAILABLE) {
-            bmmapent->type = BOOT_MMAP_FREE;
-        } else if (mb_mapent->type == MULTIBOOT_MEMORY_ACPI_RECLAIMABLE) {
-            bmmapent->type = BOOT_MMAP_RCLM;
-        } else {
-            bmmapent->type = BOOT_MMAP_RSVD;
-        }
-
-        bmmapent->start = mb_mapent->addr_low;
-        bmmapent->size = mb_mapent->len_low;
-    }
-
-    bhctx->mem.size = (mb->mem_upper << 10) + MEM_1M;
-    bhctx->mem.mmap = bmmap;
-    bhctx->mem.mmap_len = mmap_len;
-
-    return mmap_len * sizeof(struct boot_mmapent);
-}
-
-size_t boot_text
-mb_parse_mods(struct boot_handoff* bhctx,
-              struct multiboot_info* mb,
-              void* buffer)
-{
-    if (!mb->mods_count) {
-        bhctx->mods.mods_num = 0;
-        return 0;
-    }
-
-    struct boot_modent* modents = (struct boot_modent*)buffer;
-    struct multiboot_mod_list* mods = (struct multiboot_mod_list*)mb->mods_addr;
-
-    ptr_t mod_str_ptr = (ptr_t)&modents[mb->mods_count];
-
-    for (size_t i = 0; i < mb->mods_count; i++) {
-        struct multiboot_mod_list* mod = &mods[i];
-        modents[i] = (struct boot_modent){ .start = mod->mod_start,
-                                           .end = mod->mod_end,
-                                           .str = (char*)mod_str_ptr };
-        mod_str_ptr += mb_strcpy((char*)mod_str_ptr, (char*)mod->cmdline);
-    }
-
-    bhctx->mods.mods_num = mb->mods_count;
-    bhctx->mods.entries = modents;
-
-    return mod_str_ptr - (ptr_t)buffer;
-}
-
-void boot_text
-mb_prepare_hook(struct boot_handoff* bhctx)
-{
-    // nothing to do
-}
-
-void boot_text
-mb_release_hook(struct boot_handoff* bhctx)
-{
-    // nothing to do
-}
-
-#define align_addr(addr) (((addr) + (sizeof(ptr_t) - 1)) & ~(sizeof(ptr_t) - 1))
-
-struct boot_handoff* boot_text
-mb_parse(struct multiboot_info* mb)
-{
-    struct boot_handoff* bhctx = (struct boot_handoff*)bhctx_buffer;
-    ptr_t bhctx_ex = (ptr_t)&bhctx[1];
-
-    /* Parse memory map */
-    if ((mb->flags & MULTIBOOT_INFO_MEM_MAP)) {
-        bhctx_ex += mb_parse_mmap(bhctx, mb, (void*)bhctx_ex);
-        bhctx_ex = align_addr(bhctx_ex);
-    }
-
-    /* Parse cmdline */
-    if ((mb->flags & MULTIBOOT_INFO_CMDLINE)) {
-        bhctx_ex +=
-          mb_parse_cmdline(bhctx, (void*)bhctx_ex, (char*)mb->cmdline);
-        bhctx_ex = align_addr(bhctx_ex);
-    }
-
-    /* Parse sys modules */
-    if ((mb->flags & MULTIBOOT_INFO_MODS)) {
-        bhctx_ex += mb_parse_mods(bhctx, mb, (void*)bhctx_ex);
-        bhctx_ex = align_addr(bhctx_ex);
-    }
-
-    check_buffer(bhctx_ex);
-
-    bhctx->prepare = mb_prepare_hook;
-    bhctx->release = mb_release_hook;
-
-    return bhctx;
-}
\ No newline at end of file