diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/libelf/include/elf.h | 133 | ||||
| -rw-r--r-- | lib/libjove/heap/heap.c | 4 |
2 files changed, 133 insertions, 4 deletions
diff --git a/lib/libelf/include/elf.h b/lib/libelf/include/elf.h new file mode 100644 index 0000000..2eda7ae --- /dev/null +++ b/lib/libelf/include/elf.h @@ -0,0 +1,133 @@ +#ifndef _LIBELF_ELF_H +#define _LIBELF_ELF_H 1 + +#include <stdint.h> + +#define ET_NONE 0 +#define ET_REL 1 +#define ET_EXEC 2 +#define ET_DYN 3 +#define ET_CORE 4 + +#define EM_X86_64 62 + +#define EI_NIDENT 16 +#define EI_MAG0 0 +#define EI_MAG1 1 +#define EI_MAG2 2 +#define EI_MAG3 3 +#define EI_CLASS 4 +#define EI_DATA 5 +#define EI_VERSION 6 +#define EI_OSABI 7 +#define EI_ABIVERSION 8 +#define EI_PAD 9 + +#define ELFMAG0 0x7F +#define ELFMAG1 'E' +#define ELFMAG2 'L' +#define ELFMAG3 'F' + +#define ELFCLASSNONE 0 +#define ELFCLASS32 1 +#define ELFCLASS64 2 + +#define ELFDATANONE 0 +#define ELFDATA2LSB 1 +#define ELFDATA2MSB 2 + +#define ELFOSABI_NONE 0 +#define ELFOSABI_JOVE 15 + +#define EV_NONE 0 +#define EV_CURRENT 1 + +typedef struct +{ + unsigned char e_ident[EI_NIDENT]; + uint16_t e_type; + uint16_t e_machine; + uint32_t e_version; + uintptr_t e_entry; + intptr_t e_phoff; + intptr_t e_shoff; + uint32_t e_flags; + uint16_t e_ehsize; + uint16_t e_phentsize; + uint16_t e_phnum; + uint16_t e_shentsize; + uint16_t e_shnum; +uint16_t e_shstrndx; +} Elf64_Ehdr; + +#define SHT_NULL 0 +#define SHT_PROGBITS 1 +#define SHT_SYMTAB 2 +#define SHT_STRTAB 3 +#define SHT_NOBITS 8 +#define SHT_DYNSYM 11 +#define SHT_INIT_ARRAY 14 +#define SHT_FINI_ARRAY 15 +#define SHT_PREINIT_ARRAY 16 +#define SHT_SYMTAB_SHNDX 18 + +#define SHF_WRITE 0b1 +#define SHF_ALLOC 0b10 +#define SHF_EXECINSTR 0b100 +#define SHF_MERGE 0b1000 +#define SHF_STRINGS 0b10000 +#define SHF_INFO_LINK 0b100000 +#define SHF_LINK_ORDER 0b1000000 +#define SHF_OS_NONCONF 0b10000000 +#define SHF_GROUP 0b100000000 +#define SHF_TLS 0b1000000000 +#define SHF_MASKOS 0x0FF00000 +#define SHF_MASKPROC 0xF0000000 + +typedef struct +{ + uint32_t sh_name; + uint32_t sh_type; + uint64_t sh_flags; + uintptr_t sh_addr; + intptr_t sh_offset; + uint64_t sh_size; + uint32_t sh_link; + uint32_t sh_info; + uint64_t sh_addralign; + uint64_t sh_entsize; +} Elf64_Shdr; + +#define ELF64_ST_BIND(i) ((i) >> 4) +#define ELF64_ST_TYPE(i) ((i)&0xF) +#define ELF64_ST_INFO(b,t) (((b)<<4)+((t)&0xF)) + +#define ELF64_ST_VISIBILITY(o) ((o)&0x3) + +#define STB_LOCAL 0 +#define STB_GLOBAL 1 +#define STB_WEAK 2 + +#define STT_NOTYPE 0 +#define STT_OBJECT 1 +#define STT_FUNC 2 +#define STT_SECTION 3 +#define STT_FILE 4 +#define STT_COMMON 5 +#define STT_TLS 6 + +#define STV_DEFAULT 0 +#define STV_INTERNAL 1 +#define STV_HIDDEN 2 +#define STV_PROTECTED 3 + +typedef struct { + uint32_t st_name; + unsigned char st_info; + unsigned char st_other; + uint16_t st_shndx; + uintptr_t st_value; + uint64_t st_size; +} Elf64_Sym; + +#endif diff --git a/lib/libjove/heap/heap.c b/lib/libjove/heap/heap.c index ab313ae..179f7fc 100644 --- a/lib/libjove/heap/heap.c +++ b/lib/libjove/heap/heap.c @@ -64,7 +64,6 @@ heap_split(heap_bin_t *bin, size_t splitsize) size_t newsize = size_diff - sizeof(heap_bin_t) - sizeof(uintptr_t); uintptr_t newat = ((uintptr_t)bin->data) + splitsize + sizeof(uintptr_t); - jove_kprintf("Split %p to %p [%x]\n", bin, newat, newsize); bin->size_taken = splitsize; freelist_tail = heap_newbin(newat, newsize, freelist_tail); @@ -86,7 +85,6 @@ heap_alloc(size_t size) size_t bestsize = bestfit->size_taken; if(bestsize < size) { - jove_kprintf("Growing bin %p [%x] to %x\n", bestfit, bestsize, size); heap_newbin((uintptr_t)bestfit, size, NULL); }else if(bestsize > size) { heap_split(bestfit, size); @@ -113,7 +111,6 @@ start_merge_loop: { if((uintptr_t)prevbin >= __heap_start) { if(!HEAP_BIN_TAKEN(prevbin)) { - jove_kprintf("Merge back bin %p into %p\n", bin, prevbin); freelist_tail = prevbin; prevbin->size_taken += bin->size_taken + sizeof(heap_bin_t) + sizeof(uintptr_t); bin = prevbin; @@ -122,7 +119,6 @@ start_merge_loop: { } if((uintptr_t)nextbin < __heap_end) { if(!HEAP_BIN_TAKEN(nextbin)) { - jove_kprintf("Merge forward bin %p into %p\n", bin, nextbin); if(bin->next == nextbin) bin->next = nextbin->next; bin->size_taken += nextbin->size_taken + sizeof(heap_bin_t) + sizeof(uintptr_t); goto start_merge_loop; |