commit b3a117921b107cb07c135d343750c546389c1478
parent 3a3a4226ead73169c1829d3f9f40a317e88e507f
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date: Tue, 26 Oct 2021 18:47:14 +0200
libmach: Add elf64new()
This function just allocates a new object with
the correct data.
Diffstat:
8 files changed, 355 insertions(+), 1 deletion(-)
diff --git a/include/scc/scc/elf/elfhdr.h b/include/scc/scc/elf/elfhdr.h
@@ -0,0 +1,300 @@
+/* See http://www.sco.com/developers/gabi/latest/contents.html */
+
+/* e_ident[] identification indexes */
+#define EI_MAG0 0 /* file ID */
+#define EI_MAG1 1 /* file ID */
+#define EI_MAG2 2 /* file ID */
+#define EI_MAG3 3 /* file ID */
+#define EI_CLASS 4 /* file class */
+#define EI_DATA 5 /* data encoding */
+#define EI_VERSION 6 /* ELF header version */
+#define EI_OSABI 7 /* OS/ABI ID */
+#define EI_ABIVERSION 8 /* ABI version */
+#define EI_PAD 9 /* start of pad bytes */
+#define EI_NIDENT 16 /* Size of e_ident[] */
+
+/* e_ident[] magic number */
+#define ELFMAG0 0x7f /* e_ident[EI_MAG0] */
+#define ELFMAG1 'E' /* e_ident[EI_MAG1] */
+#define ELFMAG2 'L' /* e_ident[EI_MAG2] */
+#define ELFMAG3 'F' /* e_ident[EI_MAG3] */
+#define ELFMAG "\177ELF" /* magic */
+#define SELFMAG 4 /* size of magic */
+
+/* e_ident[] file class */
+#define ELFCLASSNONE 0 /* invalid */
+#define ELFCLASS32 1 /* 32-bit objs */
+#define ELFCLASS64 2 /* 64-bit objs */
+
+/* e_ident[] data encoding */
+#define ELFDATANONE 0 /* invalid */
+#define ELFDATA2LSB 1 /* Little-Endian */
+#define ELFDATA2MSB 2 /* Big-Endian */
+
+/* e_ident[] Operating System/ABI */
+#define ELFOSABI_SYSV 0 /* UNIX System V ABI */
+#define ELFOSABI_HPUX 1 /* HP-UX operating system */
+#define ELFOSABI_NETBSD 2 /* NetBSD */
+#define ELFOSABI_LINUX 3 /* GNU/Linux */
+#define ELFOSABI_HURD 4 /* GNU/Hurd */
+#define ELFOSABI_86OPEN 5 /* 86Open common IA32 ABI */
+#define ELFOSABI_SOLARIS 6 /* Solaris */
+#define ELFOSABI_MONTEREY 7 /* Monterey */
+#define ELFOSABI_IRIX 8 /* IRIX */
+#define ELFOSABI_FREEBSD 9 /* FreeBSD */
+#define ELFOSABI_TRU64 10 /* TRU64 UNIX */
+#define ELFOSABI_MODESTO 11 /* Novell Modesto */
+#define ELFOSABI_OPENBSD 12 /* OpenBSD */
+#define ELFOSABI_OPENVMS 13 /* Open VMS */
+#define ELFOSABI_NSK 14 /* Hewlett-Packard Non-Stop Kernel */
+#define ELFOSABI_AROS 15 /* Amiga Research OS */
+#define ELFOSABI_FENIXOS 16 /* The FenixOS multi-core OS */
+#define ELFOSABI_CLOUDABI 17 /* Nuxi CloudABI */
+#define ELFOSABI_OPENVOS 18 /* Stratus Technologies OpenVOS */
+#define ELFOSABI_ARM 97 /* ARM */
+#define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */
+
+/* e_ident */
+#define IS_ELF(ehdr) ((ehdr).e_ident[EI_MAG0] == ELFMAG0 && \
+ (ehdr).e_ident[EI_MAG1] == ELFMAG1 && \
+ (ehdr).e_ident[EI_MAG2] == ELFMAG2 && \
+ (ehdr).e_ident[EI_MAG3] == ELFMAG3)
+
+/* e_machine */
+#define EM_NONE 0 /* No machine */
+#define EM_M32 1 /* AT&T WE 32100 */
+#define EM_SPARC 2 /* SPARC */
+#define EM_386 3 /* Intel 80386 */
+#define EM_68K 4 /* Motorola 68000 */
+#define EM_88K 5 /* Motorola 88000 */
+#define EM_IAMCU 6 /* Intel MCU */
+#define EM_860 7 /* Intel 80860 */
+#define EM_MIPS 8 /* MIPS I Architecture */
+#define EM_S370 9 /* IBM System/370 Processor */
+#define EM_MIPS_RS3_LE 10 /* MIPS RS3000 Little-endian */
+#define EM_PARISC 15 /* Hewlett-Packard PA-RISC */
+#define EM_VPP500 17 /* Fujitsu VPP500 */
+#define EM_SPARC32PLUS 18 /* Enhanced instruction set SPARC */
+#define EM_960 19 /* Intel 80960 */
+#define EM_PPC 20 /* PowerPC */
+#define EM_PPC64 21 /* 64-bit PowerPC */
+#define EM_S390 22 /* IBM System/390 */
+#define EM_SPU 23 /* IBM SPU/SPC */
+#define EM_V800 36 /* NEC V800 */
+#define EM_FR20 37 /* Fujitsu FR20 */
+#define EM_RH32 38 /* TRW RH-32 */
+#define EM_RCE 39 /* Motorola RCE */
+#define EM_ARM 40 /* ARM AARCH32 */
+#define EM_ALPHA 41 /* Digital Alpha */
+#define EM_SH 42 /* Hitachi SH */
+#define EM_SPARCV9 43 /* SPARC Version 9 */
+#define EM_TRICORE 44 /* Siemens TriCore */
+#define EM_ARC 45 /* Argonaut RISC Core */
+#define EM_H8_300 46 /* Hitachi H8/300 */
+#define EM_H8_300H 47 /* Hitachi H8/300H */
+#define EM_H8S 48 /* Hitachi H8S */
+#define EM_H8_500 49 /* Hitachi H8/500 */
+#define EM_IA_64 50 /* Intel IA-64 */
+#define EM_MIPS_X 51 /* Stanford MIPS-X */
+#define EM_COLDFIRE 52 /* Motorola ColdFire */
+#define EM_68HC12 53 /* Motorola M68HC12 */
+#define EM_MMA 54 /* Fujitsu MMA */
+#define EM_PCP 55 /* Siemens PCP */
+#define EM_NCPU 56 /* Sony nCPU */
+#define EM_NDR1 57 /* Denso NDR1 */
+#define EM_STARCORE 58 /* Motorola Star*Core */
+#define EM_ME16 59 /* Toyota ME16 */
+#define EM_ST100 60 /* STMicroelectronics ST100 */
+#define EM_TINYJ 61 /* Advanced Logic Corp. TinyJ */
+#define EM_X86_64 62 /* AMD x86-64 */
+#define EM_PDSP 63 /* Sony DSP Processor */
+#define EM_PDP10 64 /* DEC PDP-10 */
+#define EM_PDP11 65 /* DEC PDP-11 */
+#define EM_FX66 66 /* Siemens FX66 */
+#define EM_ST9PLUS 67 /* STMicroelectronics ST9+ */
+#define EM_ST7 68 /* STMicroelectronics ST7 */
+#define EM_68HC16 69 /* Motorola MC68HC16 */
+#define EM_68HC11 70 /* Motorola MC68HC11 */
+#define EM_68HC08 71 /* Motorola MC68HC08 */
+#define EM_68HC05 72 /* Motorola MC68HC05 */
+#define EM_SVX 73 /* Silicon Graphics SVx */
+#define EM_ST19 74 /* STMicroelectronics ST19 */
+#define EM_VAX 75 /* Digital VAX */
+#define EM_CRIS 76 /* Axis Communications 32-bit */
+#define EM_JAVELIN 77 /* Infineon Technologies 32-bit */
+#define EM_FIREPATH 78 /* Element 14 64-bit DSP Processor */
+#define EM_ZSP 79 /* LSI Logic 16-bit DSP Processor */
+#define EM_MMIX 80 /* Donald Knuth's educational 64-bit */
+#define EM_HUANY 81 /* Harvard machine-independent */
+#define EM_PRISM 82 /* SiTera Prism */
+#define EM_AVR 83 /* Atmel AVR 8-bit */
+#define EM_FR30 84 /* Fujitsu FR30 */
+#define EM_D10V 85 /* Mitsubishi D10V */
+#define EM_D30V 86 /* Mitsubishi D30V */
+#define EM_V850 87 /* NEC v850 */
+#define EM_M32R 88 /* Mitsubishi M32R */
+#define EM_MN10300 89 /* Matsushita MN10300 */
+#define EM_MN10200 90 /* Matsushita MN10200 */
+#define EM_PJ 91 /* picoJava */
+#define EM_OPENRISC 92 /* OpenRISC 32-bit */
+#define EM_ARC_A5 93 /* ARC ARCompact */
+#define EM_ARC_COMPACT 93 /* ARC ARCompact */
+#define EM_XTENSA 94 /* Tensilica Xtensa */
+#define EM_VIDEOCORE 95 /* Alphamosaic VideoCore */
+#define EM_TMM_GPP 96 /* Thompson Multimedia GPP */
+#define EM_NS32K 97 /* National 32000 series */
+#define EM_TPC 98 /* Tenor Network TPC */
+#define EM_SNP1K 99 /* Trebia SNP 1000 */
+#define EM_ST200 100 /* STMicroelectronics ST200 */
+#define EM_IP2K 101 /* Ubicom IP2xxx */
+#define EM_MAX 102 /* MAX Processor */
+#define EM_CR 103 /* National CompactRISC */
+#define EM_F2MC16 104 /* Fujitsu F2MC16 */
+#define EM_MSP430 105 /* Texas msp430 */
+#define EM_BLACKFIN 106 /* Analog Devices Blackfin */
+#define EM_SE_C33 107 /* S1C33 of Seiko Epson */
+#define EM_SEP 108 /* Sharp embedded */
+#define EM_ARCA 109 /* Arca RISC */
+#define EM_UNICORE 110 /* PKU-Unity Ltd. and MPRC */
+#define EM_EXCESS 111 /* eXcess CPU */
+#define EM_DXP 112 /* Deep Execution Processor */
+#define EM_ALTERA_NIOS2 113 /* Altera Nios II */
+#define EM_CRX 114 /* National CompactRISC CRX */
+#define EM_XGATE 115 /* Motorola XGATE */
+#define EM_C166 116 /* Infineon C16x/XC16x */
+#define EM_M16C 117 /* Renesas M16C */
+#define EM_DSPIC30F 118 /* Microchip dsPIC30F */
+#define EM_CE 119 /* Freescale Communication Engine */
+#define EM_M32C 120 /* Renesas M32C */
+#define EM_TSK3000 131 /* Altium TSK3000 core */
+#define EM_RS08 132 /* Freescale RS08 */
+#define EM_SHARC 133 /* Analog Devices SHARC */
+#define EM_ECOG2 134 /* Cyan Technology eCOG2 */
+#define EM_SCORE7 135 /* Sunplus S+core7 */
+#define EM_DSP24 136 /* NJR 24-bit DSP */
+#define EM_VIDEOCORE3 137 /* Broadcom VideoCore III */
+#define EM_LATTICEMICO3 138 /* RISC processor for Lattice FPGA */
+#define EM_SE_C17 139 /* Seiko Epson C17 */
+#define EM_TI_C6000 140 /* TMS320C6000 DSP family */
+#define EM_TI_C2000 141 /* TMS320C2000 DSP family */
+#define EM_TI_C5500 142 /* TMS320C55x DSP family */
+#define EM_TI_ARP32 143 /* Texas Application Specific RISC */
+#define EM_TI_PRU 144 /* Texas Programmable Realtime Unit */
+#define EM_MMDSP_PLUS 160 /* STMicroelectronics 64bit VLIW */
+#define EM_CYPRESS_M8C 161 /* Cypress M8C microprocessor */
+#define EM_R32C 162 /* Renesas R32C series */
+#define EM_TRIMEDIA 163 /* NXP Semiconductors TriMedia */
+#define EM_QDSP6 164 /* QUALCOMM DSP6 Processor */
+#define EM_8051 165 /* Intel 8051 and variants */
+#define EM_STXP7X 166 /* STMicroelectronics STxP7x */
+#define EM_NDS32 167 /* Andes Technology embedded RISC */
+#define EM_ECOG1 168 /* Cyan Technology eCOG1X family */
+#define EM_ECOG1X 168 /* Cyan Technology eCOG1X family */
+#define EM_MAXQ30 169 /* MAXQ30 Core Micro-controllers */
+#define EM_XIMO16 170 /* NJR 16-bit DSP Processor */
+#define EM_MANIK 171 /* M2000 Reconfigurable RISC */
+#define EM_CRAYNV2 172 /* Cray Inc. NV2 vector architecture */
+#define EM_RX 173 /* Renesas RX family */
+#define EM_METAG 174 /* Imagination Technologies META */
+#define EM_MCST_ELBRUS 175 /* MCST Elbrus */
+#define EM_ECOG16 176 /* Cyan Technology eCOG16 family */
+#define EM_CR16 177 /* National CompactRISC CR16 */
+#define EM_ETPU 178 /* Freescale Extended Time Unit */
+#define EM_SLE9X 179 /* Infineon Technologies SLE9X core */
+#define EM_L10M 180 /* Intel L10M */
+#define EM_K10M 181 /* Intel K10M */
+#define EM_AARCH64 183 /* ARM AARCH64 */
+#define EM_AVR32 185 /* Atmel 32-bit */
+#define EM_STM8 186 /* STMicroeletronics STM8 */
+#define EM_TILE64 187 /* Tilera TILE64 */
+#define EM_TILEPRO 188 /* Tilera TILEPro */
+#define EM_MICROBLAZE 189 /* Xilinx MicroBlaze 32-bit */
+#define EM_CUDA 190 /* NVIDIA CUDA architecture */
+#define EM_TILEGX 191 /* Tilera TILE-Gx family */
+#define EM_CLOUDSHIELD 192 /* CloudShield architecture family */
+#define EM_COREA_1ST 193 /* KIPO-KAIST Core-A 1st gen family */
+#define EM_COREA_2ND 194 /* KIPO-KAIST Core-A 2nd gen family */
+#define EM_ARC_COMPACT2 195 /* Synopsys ARCompact V2 */
+#define EM_OPEN8 196 /* Open8 8-bit RISC soft processor core */
+#define EM_RL78 197 /* Renesas RL78 family */
+#define EM_VIDEOCORE5 198 /* Broadcom VideoCore V processor */
+#define EM_78KOR 199 /* Renesas 78KOR family */
+#define EM_56800EX 200 /* Freescale 56800EX (DSC) */
+#define EM_BA1 201 /* Beyond BA1 CPU architecture */
+#define EM_BA2 202 /* Beyond BA2 CPU architecture */
+#define EM_XCORE 203 /* XMOS xCORE processor family */
+#define EM_MCHP_PIC 204 /* Microchip 8-bit PIC(r) family */
+#define EM_KM32 210 /* KM211 KM32 32-bit processor */
+#define EM_KMX32 211 /* KM211 KMX32 32-bit processor */
+#define EM_KMX16 212 /* KM211 KMX16 16-bit processor */
+#define EM_KMX8 213 /* KM211 KMX8 8-bit processor */
+#define EM_KVARC 214 /* KM211 KVARC processor */
+#define EM_CDP 215 /* Paneve CDP architecture family */
+#define EM_COGE 216 /* Cognitive Smart Memory Processor */
+#define EM_COOL 217 /* Bluechip Systems CoolEngine */
+#define EM_NORC 218 /* Nanoradio Optimized RISC */
+#define EM_CSR_KALIMBA 219 /* CSR Kalimba architecture family */
+#define EM_Z80 220 /* Zilog Z80 */
+#define EM_VISIUM 221 /* VISIUMcore processor */
+#define EM_FT32 222 /* FTDI Chip FT32 */
+#define EM_MOXIE 223 /* Moxie processor family */
+#define EM_AMDGPU 224 /* AMD GPU architecture */
+#define EM_RISCV 243 /* RISC-V */
+#define EM_BPF 247 /* Linux BPF */
+#define EM_CSKY 252 /* C-SKY */
+
+/* e_type */
+#define ET_NONE 0 /* No file type */
+#define ET_REL 1 /* Relocatable file */
+#define ET_EXEC 2 /* Executable file */
+#define ET_DYN 3 /* Shared object file */
+#define ET_CORE 4 /* Core file */
+#define ET_LOOS 0xfe00 /* Operating system-specific */
+#define ET_HIOS 0xfeff /* Operating system-specific */
+#define ET_LOPROC 0xff00 /* Processor-specific */
+#define ET_HIPROC 0xffff /* Processor-specific */
+
+/* Version */
+#define EV_NONE 0 /* Invalid */
+#define EV_CURRENT 1 /* Current */
+
+/* Magic for e_phnum: get real value from sh_info of first section header */
+#define PN_XNUM 0xffff
+
+typedef struct elfhdr32 Elf32_Ehdr;
+typedef struct elfhdr64 Elf64_Ehdr;
+
+struct elfhdr32 {
+ unsigned char e_ident[EI_NIDENT];/* ELF Identification */
+ Elf32_Half e_type; /* object file type */
+ Elf32_Half e_machine; /* machine */
+ Elf32_Word e_version; /* object file version */
+ Elf32_Addr e_entry; /* virtual entry point */
+ Elf32_Off e_phoff; /* program header table offset */
+ Elf32_Off e_shoff; /* section header table offset */
+ Elf32_Word e_flags; /* processor-specific flags */
+ Elf32_Half e_ehsize; /* ELF header size */
+ Elf32_Half e_phentsize; /* program header entry size */
+ Elf32_Half e_phnum; /* number of program header entries */
+ Elf32_Half e_shentsize; /* section header entry size */
+ Elf32_Half e_shnum; /* number of section header entries */
+ Elf32_Half e_shstrndx; /* section header table's "section
+ header string table" entry offset */
+};
+
+struct elfhdr64 {
+ unsigned char e_ident[EI_NIDENT];/* Id bytes */
+ Elf64_Half e_type; /* file type */
+ Elf64_Half e_machine; /* machine type */
+ Elf64_Word e_version; /* version number */
+ Elf64_Addr e_entry; /* entry point */
+ Elf64_Off e_phoff; /* Program hdr offset */
+ Elf64_Off e_shoff; /* Section hdr offset */
+ Elf64_Word e_flags; /* Processor flags */
+ Elf64_Half e_ehsize; /* sizeof ehdr */
+ Elf64_Half e_phentsize; /* Program header entry size */
+ Elf64_Half e_phnum; /* Number of program headers */
+ Elf64_Half e_shentsize; /* Section header entry size */
+ Elf64_Half e_shnum; /* Number of section headers */
+ Elf64_Half e_shstrndx; /* String table index */
+};
diff --git a/include/scc/scc/elf/elftypes.h b/include/scc/scc/elf/elftypes.h
@@ -0,0 +1,21 @@
+#include <stdint.h>
+
+typedef uint32_t Elf32_Addr; /* Unsigned program address */
+typedef uint32_t Elf32_Off; /* Unsigned file offset */
+typedef int32_t Elf32_Sword; /* Signed large integer */
+typedef uint32_t Elf32_Word; /* Unsigned large integer */
+typedef uint16_t Elf32_Half; /* Unsigned medium integer */
+typedef uint64_t Elf32_Lword;
+
+typedef uint64_t Elf64_Addr;
+typedef uint64_t Elf64_Off;
+typedef int32_t Elf64_Shalf;
+
+typedef int32_t Elf64_Sword;
+typedef uint32_t Elf64_Word;
+
+typedef int64_t Elf64_Sxword;
+typedef uint64_t Elf64_Xword;
+typedef uint64_t Elf64_Lword;
+
+typedef uint16_t Elf64_Half;
diff --git a/src/libmach/Makefile b/src/libmach/Makefile
@@ -51,6 +51,7 @@ OBJS =\
coff32/coff32xgetidx.o\
coff32/coff32xsetidx.o\
elf64/elf64.o\
+ elf64/elf64new.o\
all: $(TARGET)
diff --git a/src/libmach/elf64/Makefile b/src/libmach/elf64/Makefile
@@ -5,6 +5,7 @@ include $(PROJECTDIR)/scripts/rules.mk
OBJS =\
elf64.o \
+ elf64new.o\
all: $(OBJS)
diff --git a/src/libmach/elf64/deps.mk b/src/libmach/elf64/deps.mk
@@ -2,3 +2,6 @@
elf64.o: $(INCDIR)/scc/scc/mach.h
elf64.o: ../libmach.h
elf64.o: elf64.h
+elf64new.o: $(INCDIR)/scc/scc/mach.h
+elf64new.o: ../libmach.h
+elf64new.o: elf64.h
diff --git a/src/libmach/elf64/elf64.c b/src/libmach/elf64/elf64.c
@@ -7,7 +7,7 @@
struct objops coff32 = {
.probe = NULL,
- .new = NULL,
+ .new = elf64new,
.read = NULL,
.getidx = NULL,
.setidx = NULL,
diff --git a/src/libmach/elf64/elf64.h b/src/libmach/elf64/elf64.h
@@ -1,3 +1,12 @@
+#include <scc/elf/elftypes.h>
+#include <scc/elf/elfhdr.h>
+
+#define Elf_Ehdr Elf64_Ehdr
+
+struct elf64 {
+ Elf_Ehdr hdr;
+};
+
extern int elf64new(Obj *);
extern int elf64read(Obj *, FILE *);
extern int elf64setidx(long, char **, long *, FILE *);
diff --git a/src/libmach/elf64/elf64new.c b/src/libmach/elf64/elf64new.c
@@ -0,0 +1,19 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <scc/mach.h>
+
+#include "../libmach.h"
+#include "elf64.h"
+
+int
+elf64new(Obj *obj)
+{
+ struct elf64 *elf;
+
+ if ((elf = calloc(1, sizeof(*elf))) == NULL)
+ return -1;
+ obj->data = elf;
+ obj->index = "/";
+ return 0;
+}
