Index: head/sys/arm/arm/elf_machdep.c =================================================================== --- head/sys/arm/arm/elf_machdep.c (revision 323583) +++ head/sys/arm/arm/elf_machdep.c (revision 323584) @@ -1,297 +1,310 @@ /*- * Copyright 1996-1998 John D. Polstra. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include __FBSDID("$FreeBSD$"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include +#ifdef VFP +#include +#endif static boolean_t elf32_arm_abi_supported(struct image_params *); u_long elf_hwcap; struct sysentvec elf32_freebsd_sysvec = { .sv_size = SYS_MAXSYSCALL, .sv_table = sysent, .sv_mask = 0, .sv_errsize = 0, .sv_errtbl = NULL, .sv_transtrap = NULL, .sv_fixup = __elfN(freebsd_fixup), .sv_sendsig = sendsig, .sv_sigcode = sigcode, .sv_szsigcode = &szsigcode, .sv_name = "FreeBSD ELF32", .sv_coredump = __elfN(coredump), .sv_imgact_try = NULL, .sv_minsigstksz = MINSIGSTKSZ, .sv_pagesize = PAGE_SIZE, .sv_minuser = VM_MIN_ADDRESS, .sv_maxuser = VM_MAXUSER_ADDRESS, .sv_usrstack = USRSTACK, .sv_psstrings = PS_STRINGS, .sv_stackprot = VM_PROT_ALL, .sv_copyout_strings = exec_copyout_strings, .sv_setregs = exec_setregs, .sv_fixlimit = NULL, .sv_maxssiz = NULL, .sv_flags = #if __ARM_ARCH >= 6 SV_SHP | SV_TIMEKEEP | #endif SV_ABI_FREEBSD | SV_ILP32, .sv_set_syscall_retval = cpu_set_syscall_retval, .sv_fetch_syscall_args = cpu_fetch_syscall_args, .sv_syscallnames = syscallnames, .sv_shared_page_base = SHAREDPAGE, .sv_shared_page_len = PAGE_SIZE, .sv_schedtail = NULL, .sv_thread_detach = NULL, .sv_trap = NULL, .sv_hwcap = &elf_hwcap, }; INIT_SYSENTVEC(elf32_sysvec, &elf32_freebsd_sysvec); static Elf32_Brandinfo freebsd_brand_info = { .brand = ELFOSABI_FREEBSD, .machine = EM_ARM, .compat_3_brand = "FreeBSD", .emul_path = NULL, .interp_path = "/libexec/ld-elf.so.1", .sysvec = &elf32_freebsd_sysvec, .interp_newpath = NULL, .brand_note = &elf32_freebsd_brandnote, .flags = BI_CAN_EXEC_DYN | BI_BRAND_NOTE, .header_supported= elf32_arm_abi_supported, }; SYSINIT(elf32, SI_SUB_EXEC, SI_ORDER_FIRST, (sysinit_cfunc_t) elf32_insert_brand_entry, &freebsd_brand_info); static boolean_t elf32_arm_abi_supported(struct image_params *imgp) { const Elf_Ehdr *hdr = (const Elf_Ehdr *)imgp->image_header; /* * When configured for EABI, FreeBSD supports EABI vesions 4 and 5. */ if (EF_ARM_EABI_VERSION(hdr->e_flags) < EF_ARM_EABI_FREEBSD_MIN) { if (bootverbose) uprintf("Attempting to execute non EABI binary (rev %d) image %s", EF_ARM_EABI_VERSION(hdr->e_flags), imgp->args->fname); return (FALSE); } return (TRUE); } void -elf32_dump_thread(struct thread *td __unused, void *dst __unused, - size_t *off __unused) +elf32_dump_thread(struct thread *td, void *dst, size_t *off) { +#ifdef VFP + mcontext_vfp_t vfp; + + if (dst != NULL) { + get_vfpcontext(td, &vfp); + *off = elf32_populate_note(NT_ARM_VFP, &vfp, dst, sizeof(vfp), + NULL); + } else + *off = elf32_populate_note(NT_ARM_VFP, NULL, NULL, sizeof(vfp), + NULL); +#endif } /* * It is possible for the compiler to emit relocations for unaligned data. * We handle this situation with these inlines. */ #define RELOC_ALIGNED_P(x) \ (((uintptr_t)(x) & (sizeof(void *) - 1)) == 0) static __inline Elf_Addr load_ptr(Elf_Addr *where) { Elf_Addr res; if (RELOC_ALIGNED_P(where)) return *where; memcpy(&res, where, sizeof(res)); return (res); } static __inline void store_ptr(Elf_Addr *where, Elf_Addr val) { if (RELOC_ALIGNED_P(where)) *where = val; else memcpy(where, &val, sizeof(val)); } #undef RELOC_ALIGNED_P /* Process one elf relocation with addend. */ static int elf_reloc_internal(linker_file_t lf, Elf_Addr relocbase, const void *data, int type, int local, elf_lookup_fn lookup) { Elf_Addr *where; Elf_Addr addr; Elf_Addr addend; Elf_Word rtype, symidx; const Elf_Rel *rel; const Elf_Rela *rela; int error; switch (type) { case ELF_RELOC_REL: rel = (const Elf_Rel *)data; where = (Elf_Addr *) (relocbase + rel->r_offset); addend = load_ptr(where); rtype = ELF_R_TYPE(rel->r_info); symidx = ELF_R_SYM(rel->r_info); break; case ELF_RELOC_RELA: rela = (const Elf_Rela *)data; where = (Elf_Addr *) (relocbase + rela->r_offset); addend = rela->r_addend; rtype = ELF_R_TYPE(rela->r_info); symidx = ELF_R_SYM(rela->r_info); break; default: panic("unknown reloc type %d\n", type); } if (local) { if (rtype == R_ARM_RELATIVE) { /* A + B */ addr = elf_relocaddr(lf, relocbase + addend); if (load_ptr(where) != addr) store_ptr(where, addr); } return (0); } switch (rtype) { case R_ARM_NONE: /* none */ break; case R_ARM_ABS32: error = lookup(lf, symidx, 1, &addr); if (error != 0) return -1; store_ptr(where, addr + load_ptr(where)); break; case R_ARM_COPY: /* none */ /* * There shouldn't be copy relocations in kernel * objects. */ printf("kldload: unexpected R_COPY relocation\n"); return -1; break; case R_ARM_JUMP_SLOT: error = lookup(lf, symidx, 1, &addr); if (error == 0) { store_ptr(where, addr); return (0); } return (-1); case R_ARM_RELATIVE: break; default: printf("kldload: unexpected relocation type %d\n", rtype); return -1; } return(0); } int elf_reloc(linker_file_t lf, Elf_Addr relocbase, const void *data, int type, elf_lookup_fn lookup) { return (elf_reloc_internal(lf, relocbase, data, type, 0, lookup)); } int elf_reloc_local(linker_file_t lf, Elf_Addr relocbase, const void *data, int type, elf_lookup_fn lookup) { return (elf_reloc_internal(lf, relocbase, data, type, 1, lookup)); } int elf_cpu_load_file(linker_file_t lf) { /* * The pmap code does not do an icache sync upon establishing executable * mappings in the kernel pmap. It's an optimization based on the fact * that kernel memory allocations always have EXECUTABLE protection even * when the memory isn't going to hold executable code. The only time * kernel memory holding instructions does need a sync is after loading * a kernel module, and that's when this function gets called. * * This syncs data and instruction caches after loading a module. We * don't worry about the kernel itself (lf->id is 1) as locore.S did * that on entry. Even if data cache maintenance was done by IO code, * the relocation fixup process creates dirty cache entries that we must * write back before doing icache sync. The instruction cache sync also * invalidates the branch predictor cache on platforms that have one. */ if (lf->id == 1) return (0); #if __ARM_ARCH >= 6 dcache_wb_pou((vm_offset_t)lf->address, (vm_size_t)lf->size); icache_inv_all(); #else cpu_dcache_wb_range((vm_offset_t)lf->address, (vm_size_t)lf->size); cpu_l2cache_wb_range((vm_offset_t)lf->address, (vm_size_t)lf->size); cpu_icache_sync_range((vm_offset_t)lf->address, (vm_size_t)lf->size); #endif return (0); } int elf_cpu_unload_file(linker_file_t lf __unused) { return (0); } Index: head/sys/sys/elf_common.h =================================================================== --- head/sys/sys/elf_common.h (revision 323583) +++ head/sys/sys/elf_common.h (revision 323584) @@ -1,1345 +1,1346 @@ /*- * Copyright (c) 2017 Dell EMC * Copyright (c) 2000, 2001, 2008, 2011, David E. O'Brien * Copyright (c) 1998 John D. Polstra. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD$ */ #ifndef _SYS_ELF_COMMON_H_ #define _SYS_ELF_COMMON_H_ 1 /* * ELF definitions that are independent of architecture or word size. */ /* * Note header. The ".note" section contains an array of notes. Each * begins with this header, aligned to a word boundary. Immediately * following the note header is n_namesz bytes of name, padded to the * next word boundary. Then comes n_descsz bytes of descriptor, again * padded to a word boundary. The values of n_namesz and n_descsz do * not include the padding. */ typedef struct { u_int32_t n_namesz; /* Length of name. */ u_int32_t n_descsz; /* Length of descriptor. */ u_int32_t n_type; /* Type of this note. */ } Elf_Note; /* * Option kinds. */ #define ODK_NULL 0 /* undefined */ #define ODK_REGINFO 1 /* register usage info */ #define ODK_EXCEPTIONS 2 /* exception processing info */ #define ODK_PAD 3 /* section padding */ #define ODK_HWPATCH 4 /* hardware patch applied */ #define ODK_FILL 5 /* fill value used by the linker */ #define ODK_TAGS 6 /* reserved space for tools */ #define ODK_HWAND 7 /* hardware AND patch applied */ #define ODK_HWOR 8 /* hardware OR patch applied */ #define ODK_GP_GROUP 9 /* GP group for text/data sections */ #define ODK_IDENT 10 /* ID information */ #define ODK_PAGESIZE 11 /* page size information */ /* * ODK_EXCEPTIONS info field masks. */ #define OEX_FPU_MIN 0x0000001f /* min FPU exception required */ #define OEX_FPU_MAX 0x00001f00 /* max FPU exception allowed */ #define OEX_PAGE0 0x00010000 /* page zero must be mapped */ #define OEX_SMM 0x00020000 /* run in sequential memory mode */ #define OEX_PRECISEFP 0x00040000 /* run in precise FP exception mode */ #define OEX_DISMISS 0x00080000 /* dismiss invalid address traps */ /* * ODK_PAD info field masks. */ #define OPAD_PREFIX 0x0001 #define OPAD_POSTFIX 0x0002 #define OPAD_SYMBOL 0x0004 /* * ODK_HWPATCH info field masks. */ #define OHW_R4KEOP 0x00000001 /* patch for R4000 branch at end-of-page bug */ #define OHW_R8KPFETCH 0x00000002 /* R8000 prefetch bug may occur */ #define OHW_R5KEOP 0x00000004 /* patch for R5000 branch at end-of-page bug */ #define OHW_R5KCVTL 0x00000008 /* R5000 cvt.[ds].l bug: clean == 1 */ #define OHW_R10KLDL 0x00000010UL /* need patch for R10000 misaligned load */ /* * ODK_HWAND/ODK_HWOR info field and hwp_flags[12] masks. */ #define OHWA0_R4KEOP_CHECKED 0x00000001 /* object checked for R4000 end-of-page bug */ #define OHWA0_R4KEOP_CLEAN 0x00000002 /* object verified clean for R4000 end-of-page bug */ #define OHWO0_FIXADE 0x00000001 /* object requires call to fixade */ /* * ODK_IDENT/ODK_GP_GROUP info field masks. */ #define OGP_GROUP 0x0000ffff /* GP group number */ #define OGP_SELF 0x00010000 /* GP group is self-contained */ /* * The header for GNU-style hash sections. */ typedef struct { u_int32_t gh_nbuckets; /* Number of hash buckets. */ u_int32_t gh_symndx; /* First visible symbol in .dynsym. */ u_int32_t gh_maskwords; /* #maskwords used in bloom filter. */ u_int32_t gh_shift2; /* Bloom filter shift count. */ } Elf_GNU_Hash_Header; /* Indexes into the e_ident array. Keep synced with http://www.sco.com/developers/gabi/latest/ch4.eheader.html */ #define EI_MAG0 0 /* Magic number, byte 0. */ #define EI_MAG1 1 /* Magic number, byte 1. */ #define EI_MAG2 2 /* Magic number, byte 2. */ #define EI_MAG3 3 /* Magic number, byte 3. */ #define EI_CLASS 4 /* Class of machine. */ #define EI_DATA 5 /* Data format. */ #define EI_VERSION 6 /* ELF format version. */ #define EI_OSABI 7 /* Operating system / ABI identification */ #define EI_ABIVERSION 8 /* ABI version */ #define OLD_EI_BRAND 8 /* Start of architecture identification. */ #define EI_PAD 9 /* Start of padding (per SVR4 ABI). */ #define EI_NIDENT 16 /* Size of e_ident array. */ /* Values for the magic number bytes. */ #define ELFMAG0 0x7f #define ELFMAG1 'E' #define ELFMAG2 'L' #define ELFMAG3 'F' #define ELFMAG "\177ELF" /* magic string */ #define SELFMAG 4 /* magic string size */ /* Values for e_ident[EI_VERSION] and e_version. */ #define EV_NONE 0 #define EV_CURRENT 1 /* Values for e_ident[EI_CLASS]. */ #define ELFCLASSNONE 0 /* Unknown class. */ #define ELFCLASS32 1 /* 32-bit architecture. */ #define ELFCLASS64 2 /* 64-bit architecture. */ /* Values for e_ident[EI_DATA]. */ #define ELFDATANONE 0 /* Unknown data format. */ #define ELFDATA2LSB 1 /* 2's complement little-endian. */ #define ELFDATA2MSB 2 /* 2's complement big-endian. */ /* Values for e_ident[EI_OSABI]. */ #define ELFOSABI_NONE 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_AIX 7 /* AIX */ #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 /* HP Non-Stop Kernel */ #define ELFOSABI_AROS 15 /* Amiga Research OS */ #define ELFOSABI_FENIXOS 16 /* FenixOS */ #define ELFOSABI_CLOUDABI 17 /* Nuxi CloudABI */ #define ELFOSABI_ARM_AEABI 64 /* ARM EABI */ #define ELFOSABI_ARM 97 /* ARM */ #define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */ #define ELFOSABI_SYSV ELFOSABI_NONE /* symbol used in old spec */ #define ELFOSABI_MONTEREY ELFOSABI_AIX /* Monterey */ #define ELFOSABI_GNU ELFOSABI_LINUX /* 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) /* Values for e_type. */ #define ET_NONE 0 /* Unknown type. */ #define ET_REL 1 /* Relocatable. */ #define ET_EXEC 2 /* Executable. */ #define ET_DYN 3 /* Shared object. */ #define ET_CORE 4 /* Core file. */ #define ET_LOOS 0xfe00 /* First operating system specific. */ #define ET_HIOS 0xfeff /* Last operating system-specific. */ #define ET_LOPROC 0xff00 /* First processor-specific. */ #define ET_HIPROC 0xffff /* Last processor-specific. */ /* Values for e_machine. */ #define EM_NONE 0 /* Unknown machine. */ #define EM_M32 1 /* AT&T WE32100. */ #define EM_SPARC 2 /* Sun SPARC. */ #define EM_386 3 /* Intel i386. */ #define EM_68K 4 /* Motorola 68000. */ #define EM_88K 5 /* Motorola 88000. */ #define EM_IAMCU 6 /* Intel MCU. */ #define EM_860 7 /* Intel i860. */ #define EM_MIPS 8 /* MIPS R3000 Big-Endian only. */ #define EM_S370 9 /* IBM System/370. */ #define EM_MIPS_RS3_LE 10 /* MIPS R3000 Little-Endian. */ #define EM_PARISC 15 /* HP PA-RISC. */ #define EM_VPP500 17 /* Fujitsu VPP500. */ #define EM_SPARC32PLUS 18 /* SPARC v8plus. */ #define EM_960 19 /* Intel 80960. */ #define EM_PPC 20 /* PowerPC 32-bit. */ #define EM_PPC64 21 /* PowerPC 64-bit. */ #define EM_S390 22 /* IBM System/390. */ #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. */ #define EM_SH 42 /* Hitachi SH. */ #define EM_SPARCV9 43 /* SPARC v9 64-bit. */ #define EM_TRICORE 44 /* Siemens TriCore embedded processor. */ #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 Processor. */ #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 microprocessor. */ #define EM_STARCORE 58 /* Motorola Star*Core processor. */ #define EM_ME16 59 /* Toyota ME16 processor. */ #define EM_ST100 60 /* STMicroelectronics ST100 processor. */ #define EM_TINYJ 61 /* Advanced Logic Corp. TinyJ processor. */ #define EM_X86_64 62 /* Advanced Micro Devices x86-64 */ #define EM_AMD64 EM_X86_64 /* Advanced Micro Devices x86-64 (compat) */ #define EM_PDSP 63 /* Sony DSP Processor. */ #define EM_FX66 66 /* Siemens FX66 microcontroller. */ #define EM_ST9PLUS 67 /* STMicroelectronics ST9+ 8/16 microcontroller. */ #define EM_ST7 68 /* STmicroelectronics ST7 8-bit microcontroller. */ #define EM_68HC16 69 /* Motorola MC68HC16 microcontroller. */ #define EM_68HC11 70 /* Motorola MC68HC11 microcontroller. */ #define EM_68HC08 71 /* Motorola MC68HC08 microcontroller. */ #define EM_68HC05 72 /* Motorola MC68HC05 microcontroller. */ #define EM_SVX 73 /* Silicon Graphics SVx. */ #define EM_ST19 74 /* STMicroelectronics ST19 8-bit mc. */ #define EM_VAX 75 /* Digital VAX. */ #define EM_CRIS 76 /* Axis Communications 32-bit embedded processor. */ #define EM_JAVELIN 77 /* Infineon Technologies 32-bit embedded processor. */ #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 proc. */ #define EM_HUANY 81 /* Harvard University machine-independent object files. */ #define EM_PRISM 82 /* SiTera Prism. */ #define EM_AVR 83 /* Atmel AVR 8-bit microcontroller. */ #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 embedded processor. */ #define EM_ARC_A5 93 /* ARC Cores Tangent-A5. */ #define EM_XTENSA 94 /* Tensilica Xtensa Architecture. */ #define EM_VIDEOCORE 95 /* Alphamosaic VideoCore processor. */ #define EM_TMM_GPP 96 /* Thompson Multimedia General Purpose Processor. */ #define EM_NS32K 97 /* National Semiconductor 32000 series. */ #define EM_TPC 98 /* Tenor Network TPC processor. */ #define EM_SNP1K 99 /* Trebia SNP 1000 processor. */ #define EM_ST200 100 /* STMicroelectronics ST200 microcontroller. */ #define EM_IP2K 101 /* Ubicom IP2xxx microcontroller family. */ #define EM_MAX 102 /* MAX Processor. */ #define EM_CR 103 /* National Semiconductor CompactRISC microprocessor. */ #define EM_F2MC16 104 /* Fujitsu F2MC16. */ #define EM_MSP430 105 /* Texas Instruments embedded microcontroller msp430. */ #define EM_BLACKFIN 106 /* Analog Devices Blackfin (DSP) processor. */ #define EM_SE_C33 107 /* S1C33 Family of Seiko Epson processors. */ #define EM_SEP 108 /* Sharp embedded microprocessor. */ #define EM_ARCA 109 /* Arca RISC Microprocessor. */ #define EM_UNICORE 110 /* Microprocessor series from PKU-Unity Ltd. and MPRC of Peking University */ #define EM_AARCH64 183 /* AArch64 (64-bit ARM) */ #define EM_RISCV 243 /* RISC-V */ /* Non-standard or deprecated. */ #define EM_486 6 /* Intel i486. */ #define EM_MIPS_RS4_BE 10 /* MIPS R4000 Big-Endian */ #define EM_ALPHA_STD 41 /* Digital Alpha (standard value). */ #define EM_ALPHA 0x9026 /* Alpha (written in the absence of an ABI) */ /** * e_flags */ #define EF_ARM_RELEXEC 0x1 #define EF_ARM_HASENTRY 0x2 #define EF_ARM_SYMSARESORTED 0x4 #define EF_ARM_DYNSYMSUSESEGIDX 0x8 #define EF_ARM_MAPSYMSFIRST 0x10 #define EF_ARM_LE8 0x00400000 #define EF_ARM_BE8 0x00800000 #define EF_ARM_EABIMASK 0xFF000000 #define EF_ARM_EABI_UNKNOWN 0x00000000 #define EF_ARM_EABI_VER1 0x01000000 #define EF_ARM_EABI_VER2 0x02000000 #define EF_ARM_EABI_VER3 0x03000000 #define EF_ARM_EABI_VER4 0x04000000 #define EF_ARM_EABI_VER5 0x05000000 #define EF_ARM_INTERWORK 0x00000004 #define EF_ARM_APCS_26 0x00000008 #define EF_ARM_APCS_FLOAT 0x00000010 #define EF_ARM_PIC 0x00000020 #define EF_ARM_ALIGN8 0x00000040 #define EF_ARM_NEW_ABI 0x00000080 #define EF_ARM_OLD_ABI 0x00000100 #define EF_ARM_SOFT_FLOAT 0x00000200 #define EF_ARM_VFP_FLOAT 0x00000400 #define EF_ARM_MAVERICK_FLOAT 0x00000800 #define EF_MIPS_NOREORDER 0x00000001 #define EF_MIPS_PIC 0x00000002 /* Contains PIC code */ #define EF_MIPS_CPIC 0x00000004 /* STD PIC calling sequence */ #define EF_MIPS_UCODE 0x00000010 #define EF_MIPS_ABI2 0x00000020 /* N32 */ #define EF_MIPS_OPTIONS_FIRST 0x00000080 #define EF_MIPS_ARCH_ASE 0x0F000000 /* Architectural extensions */ #define EF_MIPS_ARCH_ASE_MDMX 0x08000000 /* MDMX multimedia extension */ #define EF_MIPS_ARCH_ASE_M16 0x04000000 /* MIPS-16 ISA extensions */ #define EF_MIPS_ARCH 0xF0000000 /* Architecture field */ #define EF_PPC_EMB 0x80000000 #define EF_PPC_RELOCATABLE 0x00010000 #define EF_PPC_RELOCATABLE_LIB 0x00008000 #define EF_SPARC_EXT_MASK 0x00ffff00 #define EF_SPARC_32PLUS 0x00000100 #define EF_SPARC_SUN_US1 0x00000200 #define EF_SPARC_HAL_R1 0x00000200 #define EF_SPARC_SUN_US3 0x00000800 #define EF_SPARCV9_MM 0x00000003 #define EF_SPARCV9_TSO 0x00000000 #define EF_SPARCV9_PSO 0x00000001 #define EF_SPARCV9_RMO 0x00000002 /* Special section indexes. */ #define SHN_UNDEF 0 /* Undefined, missing, irrelevant. */ #define SHN_LORESERVE 0xff00 /* First of reserved range. */ #define SHN_LOPROC 0xff00 /* First processor-specific. */ #define SHN_HIPROC 0xff1f /* Last processor-specific. */ #define SHN_LOOS 0xff20 /* First operating system-specific. */ #define SHN_FBSD_CACHED SHN_LOOS /* Transient, for sys/kern/link_elf_obj linker only: Cached global in local symtab. */ #define SHN_HIOS 0xff3f /* Last operating system-specific. */ #define SHN_ABS 0xfff1 /* Absolute values. */ #define SHN_COMMON 0xfff2 /* Common data. */ #define SHN_XINDEX 0xffff /* Escape -- index stored elsewhere. */ #define SHN_HIRESERVE 0xffff /* Last of reserved range. */ /* sh_type */ #define SHT_NULL 0 /* inactive */ #define SHT_PROGBITS 1 /* program defined information */ #define SHT_SYMTAB 2 /* symbol table section */ #define SHT_STRTAB 3 /* string table section */ #define SHT_RELA 4 /* relocation section with addends */ #define SHT_HASH 5 /* symbol hash table section */ #define SHT_DYNAMIC 6 /* dynamic section */ #define SHT_NOTE 7 /* note section */ #define SHT_NOBITS 8 /* no space section */ #define SHT_REL 9 /* relocation section - no addends */ #define SHT_SHLIB 10 /* reserved - purpose unknown */ #define SHT_DYNSYM 11 /* dynamic symbol table section */ #define SHT_INIT_ARRAY 14 /* Initialization function pointers. */ #define SHT_FINI_ARRAY 15 /* Termination function pointers. */ #define SHT_PREINIT_ARRAY 16 /* Pre-initialization function ptrs. */ #define SHT_GROUP 17 /* Section group. */ #define SHT_SYMTAB_SHNDX 18 /* Section indexes (see SHN_XINDEX). */ #define SHT_LOOS 0x60000000 /* First of OS specific semantics */ #define SHT_LOSUNW 0x6ffffff4 #define SHT_SUNW_dof 0x6ffffff4 #define SHT_SUNW_cap 0x6ffffff5 #define SHT_GNU_ATTRIBUTES 0x6ffffff5 #define SHT_SUNW_SIGNATURE 0x6ffffff6 #define SHT_GNU_HASH 0x6ffffff6 #define SHT_GNU_LIBLIST 0x6ffffff7 #define SHT_SUNW_ANNOTATE 0x6ffffff7 #define SHT_SUNW_DEBUGSTR 0x6ffffff8 #define SHT_SUNW_DEBUG 0x6ffffff9 #define SHT_SUNW_move 0x6ffffffa #define SHT_SUNW_COMDAT 0x6ffffffb #define SHT_SUNW_syminfo 0x6ffffffc #define SHT_SUNW_verdef 0x6ffffffd #define SHT_GNU_verdef 0x6ffffffd /* Symbol versions provided */ #define SHT_SUNW_verneed 0x6ffffffe #define SHT_GNU_verneed 0x6ffffffe /* Symbol versions required */ #define SHT_SUNW_versym 0x6fffffff #define SHT_GNU_versym 0x6fffffff /* Symbol version table */ #define SHT_HISUNW 0x6fffffff #define SHT_HIOS 0x6fffffff /* Last of OS specific semantics */ #define SHT_LOPROC 0x70000000 /* reserved range for processor */ #define SHT_X86_64_UNWIND 0x70000001 /* unwind information */ #define SHT_AMD64_UNWIND SHT_X86_64_UNWIND #define SHT_ARM_EXIDX 0x70000001 /* Exception index table. */ #define SHT_ARM_PREEMPTMAP 0x70000002 /* BPABI DLL dynamic linking pre-emption map. */ #define SHT_ARM_ATTRIBUTES 0x70000003 /* Object file compatibility attributes. */ #define SHT_ARM_DEBUGOVERLAY 0x70000004 /* See DBGOVL for details. */ #define SHT_ARM_OVERLAYSECTION 0x70000005 /* See DBGOVL for details. */ #define SHT_MIPS_LIBLIST 0x70000000 #define SHT_MIPS_MSYM 0x70000001 #define SHT_MIPS_CONFLICT 0x70000002 #define SHT_MIPS_GPTAB 0x70000003 #define SHT_MIPS_UCODE 0x70000004 #define SHT_MIPS_DEBUG 0x70000005 #define SHT_MIPS_REGINFO 0x70000006 #define SHT_MIPS_PACKAGE 0x70000007 #define SHT_MIPS_PACKSYM 0x70000008 #define SHT_MIPS_RELD 0x70000009 #define SHT_MIPS_IFACE 0x7000000b #define SHT_MIPS_CONTENT 0x7000000c #define SHT_MIPS_OPTIONS 0x7000000d #define SHT_MIPS_DELTASYM 0x7000001b #define SHT_MIPS_DELTAINST 0x7000001c #define SHT_MIPS_DELTACLASS 0x7000001d #define SHT_MIPS_DWARF 0x7000001e /* MIPS gcc uses MIPS_DWARF */ #define SHT_MIPS_DELTADECL 0x7000001f #define SHT_MIPS_SYMBOL_LIB 0x70000020 #define SHT_MIPS_EVENTS 0x70000021 #define SHT_MIPS_TRANSLATE 0x70000022 #define SHT_MIPS_PIXIE 0x70000023 #define SHT_MIPS_XLATE 0x70000024 #define SHT_MIPS_XLATE_DEBUG 0x70000025 #define SHT_MIPS_WHIRL 0x70000026 #define SHT_MIPS_EH_REGION 0x70000027 #define SHT_MIPS_XLATE_OLD 0x70000028 #define SHT_MIPS_PDR_EXCEPTION 0x70000029 #define SHT_MIPS_ABIFLAGS 0x7000002a #define SHT_SPARC_GOTDATA 0x70000000 #define SHTORDERED #define SHT_HIPROC 0x7fffffff /* specific section header types */ #define SHT_LOUSER 0x80000000 /* reserved range for application */ #define SHT_HIUSER 0xffffffff /* specific indexes */ /* Flags for sh_flags. */ #define SHF_WRITE 0x1 /* Section contains writable data. */ #define SHF_ALLOC 0x2 /* Section occupies memory. */ #define SHF_EXECINSTR 0x4 /* Section contains instructions. */ #define SHF_MERGE 0x10 /* Section may be merged. */ #define SHF_STRINGS 0x20 /* Section contains strings. */ #define SHF_INFO_LINK 0x40 /* sh_info holds section index. */ #define SHF_LINK_ORDER 0x80 /* Special ordering requirements. */ #define SHF_OS_NONCONFORMING 0x100 /* OS-specific processing required. */ #define SHF_GROUP 0x200 /* Member of section group. */ #define SHF_TLS 0x400 /* Section contains TLS data. */ #define SHF_COMPRESSED 0x800 /* Section contains compressed data. */ #define SHF_MASKOS 0x0ff00000 /* OS-specific semantics. */ #define SHF_MASKPROC 0xf0000000 /* Processor-specific semantics. */ /* Flags for section groups. */ #define GRP_COMDAT 0x1 /* COMDAT semantics. */ /* * Flags / mask for .gnu.versym sections. */ #define VERSYM_VERSION 0x7fff #define VERSYM_HIDDEN 0x8000 /* Values for p_type. */ #define PT_NULL 0 /* Unused entry. */ #define PT_LOAD 1 /* Loadable segment. */ #define PT_DYNAMIC 2 /* Dynamic linking information segment. */ #define PT_INTERP 3 /* Pathname of interpreter. */ #define PT_NOTE 4 /* Auxiliary information. */ #define PT_SHLIB 5 /* Reserved (not used). */ #define PT_PHDR 6 /* Location of program header itself. */ #define PT_TLS 7 /* Thread local storage segment */ #define PT_LOOS 0x60000000 /* First OS-specific. */ #define PT_SUNW_UNWIND 0x6464e550 /* amd64 UNWIND program header */ #define PT_GNU_EH_FRAME 0x6474e550 #define PT_GNU_STACK 0x6474e551 #define PT_GNU_RELRO 0x6474e552 #define PT_DUMP_DELTA 0x6fb5d000 /* va->pa map for kernel dumps (currently arm). */ #define PT_LOSUNW 0x6ffffffa #define PT_SUNWBSS 0x6ffffffa /* Sun Specific segment */ #define PT_SUNWSTACK 0x6ffffffb /* describes the stack segment */ #define PT_SUNWDTRACE 0x6ffffffc /* private */ #define PT_SUNWCAP 0x6ffffffd /* hard/soft capabilities segment */ #define PT_HISUNW 0x6fffffff #define PT_HIOS 0x6fffffff /* Last OS-specific. */ #define PT_LOPROC 0x70000000 /* First processor-specific type. */ #define PT_ARM_ARCHEXT 0x70000000 /* ARM arch compat information. */ #define PT_ARM_EXIDX 0x70000001 /* ARM exception unwind tables. */ #define PT_HIPROC 0x7fffffff /* Last processor-specific type. */ /* Values for p_flags. */ #define PF_X 0x1 /* Executable. */ #define PF_W 0x2 /* Writable. */ #define PF_R 0x4 /* Readable. */ #define PF_MASKOS 0x0ff00000 /* Operating system-specific. */ #define PF_MASKPROC 0xf0000000 /* Processor-specific. */ /* Extended program header index. */ #define PN_XNUM 0xffff /* Values for d_tag. */ #define DT_NULL 0 /* Terminating entry. */ #define DT_NEEDED 1 /* String table offset of a needed shared library. */ #define DT_PLTRELSZ 2 /* Total size in bytes of PLT relocations. */ #define DT_PLTGOT 3 /* Processor-dependent address. */ #define DT_HASH 4 /* Address of symbol hash table. */ #define DT_STRTAB 5 /* Address of string table. */ #define DT_SYMTAB 6 /* Address of symbol table. */ #define DT_RELA 7 /* Address of ElfNN_Rela relocations. */ #define DT_RELASZ 8 /* Total size of ElfNN_Rela relocations. */ #define DT_RELAENT 9 /* Size of each ElfNN_Rela relocation entry. */ #define DT_STRSZ 10 /* Size of string table. */ #define DT_SYMENT 11 /* Size of each symbol table entry. */ #define DT_INIT 12 /* Address of initialization function. */ #define DT_FINI 13 /* Address of finalization function. */ #define DT_SONAME 14 /* String table offset of shared object name. */ #define DT_RPATH 15 /* String table offset of library path. [sup] */ #define DT_SYMBOLIC 16 /* Indicates "symbolic" linking. [sup] */ #define DT_REL 17 /* Address of ElfNN_Rel relocations. */ #define DT_RELSZ 18 /* Total size of ElfNN_Rel relocations. */ #define DT_RELENT 19 /* Size of each ElfNN_Rel relocation. */ #define DT_PLTREL 20 /* Type of relocation used for PLT. */ #define DT_DEBUG 21 /* Reserved (not used). */ #define DT_TEXTREL 22 /* Indicates there may be relocations in non-writable segments. [sup] */ #define DT_JMPREL 23 /* Address of PLT relocations. */ #define DT_BIND_NOW 24 /* [sup] */ #define DT_INIT_ARRAY 25 /* Address of the array of pointers to initialization functions */ #define DT_FINI_ARRAY 26 /* Address of the array of pointers to termination functions */ #define DT_INIT_ARRAYSZ 27 /* Size in bytes of the array of initialization functions. */ #define DT_FINI_ARRAYSZ 28 /* Size in bytes of the array of termination functions. */ #define DT_RUNPATH 29 /* String table offset of a null-terminated library search path string. */ #define DT_FLAGS 30 /* Object specific flag values. */ #define DT_ENCODING 32 /* Values greater than or equal to DT_ENCODING and less than DT_LOOS follow the rules for the interpretation of the d_un union as follows: even == 'd_ptr', odd == 'd_val' or none */ #define DT_PREINIT_ARRAY 32 /* Address of the array of pointers to pre-initialization functions. */ #define DT_PREINIT_ARRAYSZ 33 /* Size in bytes of the array of pre-initialization functions. */ #define DT_MAXPOSTAGS 34 /* number of positive tags */ #define DT_LOOS 0x6000000d /* First OS-specific */ #define DT_SUNW_AUXILIARY 0x6000000d /* symbol auxiliary name */ #define DT_SUNW_RTLDINF 0x6000000e /* ld.so.1 info (private) */ #define DT_SUNW_FILTER 0x6000000f /* symbol filter name */ #define DT_SUNW_CAP 0x60000010 /* hardware/software */ #define DT_HIOS 0x6ffff000 /* Last OS-specific */ /* * DT_* entries which fall between DT_VALRNGHI & DT_VALRNGLO use the * Dyn.d_un.d_val field of the Elf*_Dyn structure. */ #define DT_VALRNGLO 0x6ffffd00 #define DT_GNU_PRELINKED 0x6ffffdf5 /* prelinking timestamp */ #define DT_GNU_CONFLICTSZ 0x6ffffdf6 /* size of conflict section */ #define DT_GNU_LIBLISTSZ 0x6ffffdf7 /* size of library list */ #define DT_CHECKSUM 0x6ffffdf8 /* elf checksum */ #define DT_PLTPADSZ 0x6ffffdf9 /* pltpadding size */ #define DT_MOVEENT 0x6ffffdfa /* move table entry size */ #define DT_MOVESZ 0x6ffffdfb /* move table size */ #define DT_FEATURE 0x6ffffdfc /* feature holder */ #define DT_FEATURE_1 DT_FEATURE #define DT_POSFLAG_1 0x6ffffdfd /* flags for DT_* entries, effecting */ /* the following DT_* entry. */ /* See DF_P1_* definitions */ #define DT_SYMINSZ 0x6ffffdfe /* syminfo table size (in bytes) */ #define DT_SYMINENT 0x6ffffdff /* syminfo entry size (in bytes) */ #define DT_VALRNGHI 0x6ffffdff /* * DT_* entries which fall between DT_ADDRRNGHI & DT_ADDRRNGLO use the * Dyn.d_un.d_ptr field of the Elf*_Dyn structure. * * If any adjustment is made to the ELF object after it has been * built, these entries will need to be adjusted. */ #define DT_ADDRRNGLO 0x6ffffe00 #define DT_GNU_HASH 0x6ffffef5 /* GNU-style hash table */ #define DT_TLSDESC_PLT 0x6ffffef6 /* loc. of PLT for tlsdesc resolver */ #define DT_TLSDESC_GOT 0x6ffffef7 /* loc. of GOT for tlsdesc resolver */ #define DT_GNU_CONFLICT 0x6ffffef8 /* address of conflict section */ #define DT_GNU_LIBLIST 0x6ffffef9 /* address of library list */ #define DT_CONFIG 0x6ffffefa /* configuration information */ #define DT_DEPAUDIT 0x6ffffefb /* dependency auditing */ #define DT_AUDIT 0x6ffffefc /* object auditing */ #define DT_PLTPAD 0x6ffffefd /* pltpadding (sparcv9) */ #define DT_MOVETAB 0x6ffffefe /* move table */ #define DT_SYMINFO 0x6ffffeff /* syminfo table */ #define DT_ADDRRNGHI 0x6ffffeff #define DT_VERSYM 0x6ffffff0 /* Address of versym section. */ #define DT_RELACOUNT 0x6ffffff9 /* number of RELATIVE relocations */ #define DT_RELCOUNT 0x6ffffffa /* number of RELATIVE relocations */ #define DT_FLAGS_1 0x6ffffffb /* state flags - see DF_1_* defs */ #define DT_VERDEF 0x6ffffffc /* Address of verdef section. */ #define DT_VERDEFNUM 0x6ffffffd /* Number of elems in verdef section */ #define DT_VERNEED 0x6ffffffe /* Address of verneed section. */ #define DT_VERNEEDNUM 0x6fffffff /* Number of elems in verneed section */ #define DT_LOPROC 0x70000000 /* First processor-specific type. */ #define DT_ARM_SYMTABSZ 0x70000001 #define DT_ARM_PREEMPTMAP 0x70000002 #define DT_SPARC_REGISTER 0x70000001 #define DT_DEPRECATED_SPARC_REGISTER 0x7000001 #define DT_MIPS_RLD_VERSION 0x70000001 #define DT_MIPS_TIME_STAMP 0x70000002 #define DT_MIPS_ICHECKSUM 0x70000003 #define DT_MIPS_IVERSION 0x70000004 #define DT_MIPS_FLAGS 0x70000005 #define DT_MIPS_BASE_ADDRESS 0x70000006 #define DT_MIPS_CONFLICT 0x70000008 #define DT_MIPS_LIBLIST 0x70000009 #define DT_MIPS_LOCAL_GOTNO 0x7000000a #define DT_MIPS_CONFLICTNO 0x7000000b #define DT_MIPS_LIBLISTNO 0x70000010 #define DT_MIPS_SYMTABNO 0x70000011 #define DT_MIPS_UNREFEXTNO 0x70000012 #define DT_MIPS_GOTSYM 0x70000013 #define DT_MIPS_HIPAGENO 0x70000014 #define DT_MIPS_RLD_MAP 0x70000016 #define DT_MIPS_DELTA_CLASS 0x70000017 #define DT_MIPS_DELTA_CLASS_NO 0x70000018 #define DT_MIPS_DELTA_INSTANCE 0x70000019 #define DT_MIPS_DELTA_INSTANCE_NO 0x7000001A #define DT_MIPS_DELTA_RELOC 0x7000001B #define DT_MIPS_DELTA_RELOC_NO 0x7000001C #define DT_MIPS_DELTA_SYM 0x7000001D #define DT_MIPS_DELTA_SYM_NO 0x7000001E #define DT_MIPS_DELTA_CLASSSYM 0x70000020 #define DT_MIPS_DELTA_CLASSSYM_NO 0x70000021 #define DT_MIPS_CXX_FLAGS 0x70000022 #define DT_MIPS_PIXIE_INIT 0x70000023 #define DT_MIPS_SYMBOL_LIB 0x70000024 #define DT_MIPS_LOCALPAGE_GOTIDX 0x70000025 #define DT_MIPS_LOCAL_GOTIDX 0x70000026 #define DT_MIPS_HIDDEN_GOTIDX 0x70000027 #define DT_MIPS_PROTECTED_GOTIDX 0x70000028 #define DT_MIPS_OPTIONS 0x70000029 #define DT_MIPS_INTERFACE 0x7000002A #define DT_MIPS_DYNSTR_ALIGN 0x7000002B #define DT_MIPS_INTERFACE_SIZE 0x7000002C #define DT_MIPS_RLD_TEXT_RESOLVE_ADDR 0x7000002D #define DT_MIPS_PERF_SUFFIX 0x7000002E #define DT_MIPS_COMPACT_SIZE 0x7000002F #define DT_MIPS_GP_VALUE 0x70000030 #define DT_MIPS_AUX_DYNAMIC 0x70000031 #define DT_MIPS_PLTGOT 0x70000032 #define DT_MIPS_RLD_OBJ_UPDATE 0x70000033 #define DT_MIPS_RWPLT 0x70000034 #define DT_PPC_GOT 0x70000000 #define DT_PPC_TLSOPT 0x70000001 #define DT_PPC64_GLINK 0x70000000 #define DT_PPC64_OPD 0x70000001 #define DT_PPC64_OPDSZ 0x70000002 #define DT_PPC64_TLSOPT 0x70000003 #define DT_AUXILIARY 0x7ffffffd /* shared library auxiliary name */ #define DT_USED 0x7ffffffe /* ignored - same as needed */ #define DT_FILTER 0x7fffffff /* shared library filter name */ #define DT_HIPROC 0x7fffffff /* Last processor-specific type. */ /* Values for DT_FLAGS */ #define DF_ORIGIN 0x0001 /* Indicates that the object being loaded may make reference to the $ORIGIN substitution string */ #define DF_SYMBOLIC 0x0002 /* Indicates "symbolic" linking. */ #define DF_TEXTREL 0x0004 /* Indicates there may be relocations in non-writable segments. */ #define DF_BIND_NOW 0x0008 /* Indicates that the dynamic linker should process all relocations for the object containing this entry before transferring control to the program. */ #define DF_STATIC_TLS 0x0010 /* Indicates that the shared object or executable contains code using a static thread-local storage scheme. */ /* Values for DT_FLAGS_1 */ #define DF_1_BIND_NOW 0x00000001 /* Same as DF_BIND_NOW */ #define DF_1_GLOBAL 0x00000002 /* Set the RTLD_GLOBAL for object */ #define DF_1_NODELETE 0x00000008 /* Set the RTLD_NODELETE for object */ #define DF_1_LOADFLTR 0x00000010 /* Immediate loading of filtees */ #define DF_1_NOOPEN 0x00000040 /* Do not allow loading on dlopen() */ #define DF_1_ORIGIN 0x00000080 /* Process $ORIGIN */ #define DF_1_INTERPOSE 0x00000400 /* Interpose all objects but main */ #define DF_1_NODEFLIB 0x00000800 /* Do not search default paths */ /* Values for l_flags. */ #define LL_NONE 0x0 /* no flags */ #define LL_EXACT_MATCH 0x1 /* require an exact match */ #define LL_IGNORE_INT_VER 0x2 /* ignore version incompatibilities */ #define LL_REQUIRE_MINOR 0x4 #define LL_EXPORTS 0x8 #define LL_DELAY_LOAD 0x10 #define LL_DELTA 0x20 /* Values for n_type used in executables. */ #define NT_FREEBSD_ABI_TAG 1 #define NT_FREEBSD_NOINIT_TAG 2 #define NT_FREEBSD_ARCH_TAG 3 /* Values for n_type. Used in core files. */ #define NT_PRSTATUS 1 /* Process status. */ #define NT_FPREGSET 2 /* Floating point registers. */ #define NT_PRPSINFO 3 /* Process state info. */ #define NT_THRMISC 7 /* Thread miscellaneous info. */ #define NT_PROCSTAT_PROC 8 /* Procstat proc data. */ #define NT_PROCSTAT_FILES 9 /* Procstat files data. */ #define NT_PROCSTAT_VMMAP 10 /* Procstat vmmap data. */ #define NT_PROCSTAT_GROUPS 11 /* Procstat groups data. */ #define NT_PROCSTAT_UMASK 12 /* Procstat umask data. */ #define NT_PROCSTAT_RLIMIT 13 /* Procstat rlimit data. */ #define NT_PROCSTAT_OSREL 14 /* Procstat osreldate data. */ #define NT_PROCSTAT_PSSTRINGS 15 /* Procstat ps_strings data. */ #define NT_PROCSTAT_AUXV 16 /* Procstat auxv data. */ #define NT_PTLWPINFO 17 /* Thread ptrace miscellaneous info. */ #define NT_PPC_VMX 0x100 /* PowerPC Altivec/VMX registers */ #define NT_X86_XSTATE 0x202 /* x86 XSAVE extended state. */ +#define NT_ARM_VFP 0x400 /* ARM VFP registers */ /* Symbol Binding - ELFNN_ST_BIND - st_info */ #define STB_LOCAL 0 /* Local symbol */ #define STB_GLOBAL 1 /* Global symbol */ #define STB_WEAK 2 /* like global - lower precedence */ #define STB_LOOS 10 /* Start of operating system reserved range. */ #define STB_GNU_UNIQUE 10 /* Unique symbol (GNU) */ #define STB_HIOS 12 /* End of operating system reserved range. */ #define STB_LOPROC 13 /* reserved range for processor */ #define STB_HIPROC 15 /* specific semantics. */ /* Symbol type - ELFNN_ST_TYPE - st_info */ #define STT_NOTYPE 0 /* Unspecified type. */ #define STT_OBJECT 1 /* Data object. */ #define STT_FUNC 2 /* Function. */ #define STT_SECTION 3 /* Section. */ #define STT_FILE 4 /* Source file. */ #define STT_COMMON 5 /* Uninitialized common block. */ #define STT_TLS 6 /* TLS object. */ #define STT_NUM 7 #define STT_LOOS 10 /* Reserved range for operating system */ #define STT_GNU_IFUNC 10 #define STT_HIOS 12 /* specific semantics. */ #define STT_LOPROC 13 /* Start of processor reserved range. */ #define STT_SPARC_REGISTER 13 /* SPARC register information. */ #define STT_HIPROC 15 /* End of processor reserved range. */ /* Symbol visibility - ELFNN_ST_VISIBILITY - st_other */ #define STV_DEFAULT 0x0 /* Default visibility (see binding). */ #define STV_INTERNAL 0x1 /* Special meaning in relocatable objects. */ #define STV_HIDDEN 0x2 /* Not visible. */ #define STV_PROTECTED 0x3 /* Visible but not preemptible. */ #define STV_EXPORTED 0x4 #define STV_SINGLETON 0x5 #define STV_ELIMINATE 0x6 /* Special symbol table indexes. */ #define STN_UNDEF 0 /* Undefined symbol index. */ /* Symbol versioning flags. */ #define VER_DEF_CURRENT 1 #define VER_DEF_IDX(x) VER_NDX(x) #define VER_FLG_BASE 0x01 #define VER_FLG_WEAK 0x02 #define VER_NEED_CURRENT 1 #define VER_NEED_WEAK (1u << 15) #define VER_NEED_HIDDEN VER_NDX_HIDDEN #define VER_NEED_IDX(x) VER_NDX(x) #define VER_NDX_LOCAL 0 #define VER_NDX_GLOBAL 1 #define VER_NDX_GIVEN 2 #define VER_NDX_HIDDEN (1u << 15) #define VER_NDX(x) ((x) & ~(1u << 15)) #define CA_SUNW_NULL 0 #define CA_SUNW_HW_1 1 /* first hardware capabilities entry */ #define CA_SUNW_SF_1 2 /* first software capabilities entry */ /* * Syminfo flag values */ #define SYMINFO_FLG_DIRECT 0x0001 /* symbol ref has direct association */ /* to object containing defn. */ #define SYMINFO_FLG_PASSTHRU 0x0002 /* ignored - see SYMINFO_FLG_FILTER */ #define SYMINFO_FLG_COPY 0x0004 /* symbol is a copy-reloc */ #define SYMINFO_FLG_LAZYLOAD 0x0008 /* object containing defn should be */ /* lazily-loaded */ #define SYMINFO_FLG_DIRECTBIND 0x0010 /* ref should be bound directly to */ /* object containing defn. */ #define SYMINFO_FLG_NOEXTDIRECT 0x0020 /* don't let an external reference */ /* directly bind to this symbol */ #define SYMINFO_FLG_FILTER 0x0002 /* symbol ref is associated to a */ #define SYMINFO_FLG_AUXILIARY 0x0040 /* standard or auxiliary filter */ /* * Syminfo.si_boundto values. */ #define SYMINFO_BT_SELF 0xffff /* symbol bound to self */ #define SYMINFO_BT_PARENT 0xfffe /* symbol bound to parent */ #define SYMINFO_BT_NONE 0xfffd /* no special symbol binding */ #define SYMINFO_BT_EXTERN 0xfffc /* symbol defined as external */ #define SYMINFO_BT_LOWRESERVE 0xff00 /* beginning of reserved entries */ /* * Syminfo version values. */ #define SYMINFO_NONE 0 /* Syminfo version */ #define SYMINFO_CURRENT 1 #define SYMINFO_NUM 2 /* Values for ch_type (compressed section headers). */ #define ELFCOMPRESS_ZLIB 1 /* ZLIB/DEFLATE */ #define ELFCOMPRESS_LOOS 0x60000000 /* OS-specific */ #define ELFCOMPRESS_HIOS 0x6fffffff #define ELFCOMPRESS_LOPROC 0x70000000 /* Processor-specific */ #define ELFCOMPRESS_HIPROC 0x7fffffff /* * Relocation types. * * All machine architectures are defined here to allow tools on one to * handle others. */ #define R_386_NONE 0 /* No relocation. */ #define R_386_32 1 /* Add symbol value. */ #define R_386_PC32 2 /* Add PC-relative symbol value. */ #define R_386_GOT32 3 /* Add PC-relative GOT offset. */ #define R_386_PLT32 4 /* Add PC-relative PLT offset. */ #define R_386_COPY 5 /* Copy data from shared object. */ #define R_386_GLOB_DAT 6 /* Set GOT entry to data address. */ #define R_386_JMP_SLOT 7 /* Set GOT entry to code address. */ #define R_386_RELATIVE 8 /* Add load address of shared object. */ #define R_386_GOTOFF 9 /* Add GOT-relative symbol address. */ #define R_386_GOTPC 10 /* Add PC-relative GOT table address. */ #define R_386_TLS_TPOFF 14 /* Negative offset in static TLS block */ #define R_386_TLS_IE 15 /* Absolute address of GOT for -ve static TLS */ #define R_386_TLS_GOTIE 16 /* GOT entry for negative static TLS block */ #define R_386_TLS_LE 17 /* Negative offset relative to static TLS */ #define R_386_TLS_GD 18 /* 32 bit offset to GOT (index,off) pair */ #define R_386_TLS_LDM 19 /* 32 bit offset to GOT (index,zero) pair */ #define R_386_TLS_GD_32 24 /* 32 bit offset to GOT (index,off) pair */ #define R_386_TLS_GD_PUSH 25 /* pushl instruction for Sun ABI GD sequence */ #define R_386_TLS_GD_CALL 26 /* call instruction for Sun ABI GD sequence */ #define R_386_TLS_GD_POP 27 /* popl instruction for Sun ABI GD sequence */ #define R_386_TLS_LDM_32 28 /* 32 bit offset to GOT (index,zero) pair */ #define R_386_TLS_LDM_PUSH 29 /* pushl instruction for Sun ABI LD sequence */ #define R_386_TLS_LDM_CALL 30 /* call instruction for Sun ABI LD sequence */ #define R_386_TLS_LDM_POP 31 /* popl instruction for Sun ABI LD sequence */ #define R_386_TLS_LDO_32 32 /* 32 bit offset from start of TLS block */ #define R_386_TLS_IE_32 33 /* 32 bit offset to GOT static TLS offset entry */ #define R_386_TLS_LE_32 34 /* 32 bit offset within static TLS block */ #define R_386_TLS_DTPMOD32 35 /* GOT entry containing TLS index */ #define R_386_TLS_DTPOFF32 36 /* GOT entry containing TLS offset */ #define R_386_TLS_TPOFF32 37 /* GOT entry of -ve static TLS offset */ #define R_386_IRELATIVE 42 /* PLT entry resolved indirectly at runtime */ #define R_AARCH64_NONE 0 /* No relocation */ #define R_AARCH64_ABS64 257 /* Absolute offset */ #define R_AARCH64_ABS32 258 /* Absolute, 32-bit overflow check */ #define R_AARCH64_ABS16 259 /* Absolute, 16-bit overflow check */ #define R_AARCH64_PREL64 260 /* PC relative */ #define R_AARCH64_PREL32 261 /* PC relative, 32-bit overflow check */ #define R_AARCH64_PREL16 262 /* PC relative, 16-bit overflow check */ #define R_AARCH64_COPY 1024 /* Copy data from shared object */ #define R_AARCH64_GLOB_DAT 1025 /* Set GOT entry to data address */ #define R_AARCH64_JUMP_SLOT 1026 /* Set GOT entry to code address */ #define R_AARCH64_RELATIVE 1027 /* Add load address of shared object */ #define R_AARCH64_TLS_DTPREL64 1028 #define R_AARCH64_TLS_DTPMOD64 1029 #define R_AARCH64_TLS_TPREL64 1030 #define R_AARCH64_TLSDESC 1031 /* Identify the TLS descriptor */ #define R_AARCH64_IRELATIVE 1032 #define R_ARM_NONE 0 /* No relocation. */ #define R_ARM_PC24 1 #define R_ARM_ABS32 2 #define R_ARM_REL32 3 #define R_ARM_PC13 4 #define R_ARM_ABS16 5 #define R_ARM_ABS12 6 #define R_ARM_THM_ABS5 7 #define R_ARM_ABS8 8 #define R_ARM_SBREL32 9 #define R_ARM_THM_PC22 10 #define R_ARM_THM_PC8 11 #define R_ARM_AMP_VCALL9 12 #define R_ARM_SWI24 13 #define R_ARM_THM_SWI8 14 #define R_ARM_XPC25 15 #define R_ARM_THM_XPC22 16 /* TLS relocations */ #define R_ARM_TLS_DTPMOD32 17 /* ID of module containing symbol */ #define R_ARM_TLS_DTPOFF32 18 /* Offset in TLS block */ #define R_ARM_TLS_TPOFF32 19 /* Offset in static TLS block */ #define R_ARM_COPY 20 /* Copy data from shared object. */ #define R_ARM_GLOB_DAT 21 /* Set GOT entry to data address. */ #define R_ARM_JUMP_SLOT 22 /* Set GOT entry to code address. */ #define R_ARM_RELATIVE 23 /* Add load address of shared object. */ #define R_ARM_GOTOFF 24 /* Add GOT-relative symbol address. */ #define R_ARM_GOTPC 25 /* Add PC-relative GOT table address. */ #define R_ARM_GOT32 26 /* Add PC-relative GOT offset. */ #define R_ARM_PLT32 27 /* Add PC-relative PLT offset. */ #define R_ARM_GNU_VTENTRY 100 #define R_ARM_GNU_VTINHERIT 101 #define R_ARM_RSBREL32 250 #define R_ARM_THM_RPC22 251 #define R_ARM_RREL32 252 #define R_ARM_RABS32 253 #define R_ARM_RPC24 254 #define R_ARM_RBASE 255 /* Name Value Field Calculation */ #define R_IA_64_NONE 0 /* None */ #define R_IA_64_IMM14 0x21 /* immediate14 S + A */ #define R_IA_64_IMM22 0x22 /* immediate22 S + A */ #define R_IA_64_IMM64 0x23 /* immediate64 S + A */ #define R_IA_64_DIR32MSB 0x24 /* word32 MSB S + A */ #define R_IA_64_DIR32LSB 0x25 /* word32 LSB S + A */ #define R_IA_64_DIR64MSB 0x26 /* word64 MSB S + A */ #define R_IA_64_DIR64LSB 0x27 /* word64 LSB S + A */ #define R_IA_64_GPREL22 0x2a /* immediate22 @gprel(S + A) */ #define R_IA_64_GPREL64I 0x2b /* immediate64 @gprel(S + A) */ #define R_IA_64_GPREL32MSB 0x2c /* word32 MSB @gprel(S + A) */ #define R_IA_64_GPREL32LSB 0x2d /* word32 LSB @gprel(S + A) */ #define R_IA_64_GPREL64MSB 0x2e /* word64 MSB @gprel(S + A) */ #define R_IA_64_GPREL64LSB 0x2f /* word64 LSB @gprel(S + A) */ #define R_IA_64_LTOFF22 0x32 /* immediate22 @ltoff(S + A) */ #define R_IA_64_LTOFF64I 0x33 /* immediate64 @ltoff(S + A) */ #define R_IA_64_PLTOFF22 0x3a /* immediate22 @pltoff(S + A) */ #define R_IA_64_PLTOFF64I 0x3b /* immediate64 @pltoff(S + A) */ #define R_IA_64_PLTOFF64MSB 0x3e /* word64 MSB @pltoff(S + A) */ #define R_IA_64_PLTOFF64LSB 0x3f /* word64 LSB @pltoff(S + A) */ #define R_IA_64_FPTR64I 0x43 /* immediate64 @fptr(S + A) */ #define R_IA_64_FPTR32MSB 0x44 /* word32 MSB @fptr(S + A) */ #define R_IA_64_FPTR32LSB 0x45 /* word32 LSB @fptr(S + A) */ #define R_IA_64_FPTR64MSB 0x46 /* word64 MSB @fptr(S + A) */ #define R_IA_64_FPTR64LSB 0x47 /* word64 LSB @fptr(S + A) */ #define R_IA_64_PCREL60B 0x48 /* immediate60 form1 S + A - P */ #define R_IA_64_PCREL21B 0x49 /* immediate21 form1 S + A - P */ #define R_IA_64_PCREL21M 0x4a /* immediate21 form2 S + A - P */ #define R_IA_64_PCREL21F 0x4b /* immediate21 form3 S + A - P */ #define R_IA_64_PCREL32MSB 0x4c /* word32 MSB S + A - P */ #define R_IA_64_PCREL32LSB 0x4d /* word32 LSB S + A - P */ #define R_IA_64_PCREL64MSB 0x4e /* word64 MSB S + A - P */ #define R_IA_64_PCREL64LSB 0x4f /* word64 LSB S + A - P */ #define R_IA_64_LTOFF_FPTR22 0x52 /* immediate22 @ltoff(@fptr(S + A)) */ #define R_IA_64_LTOFF_FPTR64I 0x53 /* immediate64 @ltoff(@fptr(S + A)) */ #define R_IA_64_LTOFF_FPTR32MSB 0x54 /* word32 MSB @ltoff(@fptr(S + A)) */ #define R_IA_64_LTOFF_FPTR32LSB 0x55 /* word32 LSB @ltoff(@fptr(S + A)) */ #define R_IA_64_LTOFF_FPTR64MSB 0x56 /* word64 MSB @ltoff(@fptr(S + A)) */ #define R_IA_64_LTOFF_FPTR64LSB 0x57 /* word64 LSB @ltoff(@fptr(S + A)) */ #define R_IA_64_SEGREL32MSB 0x5c /* word32 MSB @segrel(S + A) */ #define R_IA_64_SEGREL32LSB 0x5d /* word32 LSB @segrel(S + A) */ #define R_IA_64_SEGREL64MSB 0x5e /* word64 MSB @segrel(S + A) */ #define R_IA_64_SEGREL64LSB 0x5f /* word64 LSB @segrel(S + A) */ #define R_IA_64_SECREL32MSB 0x64 /* word32 MSB @secrel(S + A) */ #define R_IA_64_SECREL32LSB 0x65 /* word32 LSB @secrel(S + A) */ #define R_IA_64_SECREL64MSB 0x66 /* word64 MSB @secrel(S + A) */ #define R_IA_64_SECREL64LSB 0x67 /* word64 LSB @secrel(S + A) */ #define R_IA_64_REL32MSB 0x6c /* word32 MSB BD + A */ #define R_IA_64_REL32LSB 0x6d /* word32 LSB BD + A */ #define R_IA_64_REL64MSB 0x6e /* word64 MSB BD + A */ #define R_IA_64_REL64LSB 0x6f /* word64 LSB BD + A */ #define R_IA_64_LTV32MSB 0x74 /* word32 MSB S + A */ #define R_IA_64_LTV32LSB 0x75 /* word32 LSB S + A */ #define R_IA_64_LTV64MSB 0x76 /* word64 MSB S + A */ #define R_IA_64_LTV64LSB 0x77 /* word64 LSB S + A */ #define R_IA_64_PCREL21BI 0x79 /* immediate21 form1 S + A - P */ #define R_IA_64_PCREL22 0x7a /* immediate22 S + A - P */ #define R_IA_64_PCREL64I 0x7b /* immediate64 S + A - P */ #define R_IA_64_IPLTMSB 0x80 /* function descriptor MSB special */ #define R_IA_64_IPLTLSB 0x81 /* function descriptor LSB speciaal */ #define R_IA_64_SUB 0x85 /* immediate64 A - S */ #define R_IA_64_LTOFF22X 0x86 /* immediate22 special */ #define R_IA_64_LDXMOV 0x87 /* immediate22 special */ #define R_IA_64_TPREL14 0x91 /* imm14 @tprel(S + A) */ #define R_IA_64_TPREL22 0x92 /* imm22 @tprel(S + A) */ #define R_IA_64_TPREL64I 0x93 /* imm64 @tprel(S + A) */ #define R_IA_64_TPREL64MSB 0x96 /* word64 MSB @tprel(S + A) */ #define R_IA_64_TPREL64LSB 0x97 /* word64 LSB @tprel(S + A) */ #define R_IA_64_LTOFF_TPREL22 0x9a /* imm22 @ltoff(@tprel(S+A)) */ #define R_IA_64_DTPMOD64MSB 0xa6 /* word64 MSB @dtpmod(S + A) */ #define R_IA_64_DTPMOD64LSB 0xa7 /* word64 LSB @dtpmod(S + A) */ #define R_IA_64_LTOFF_DTPMOD22 0xaa /* imm22 @ltoff(@dtpmod(S+A)) */ #define R_IA_64_DTPREL14 0xb1 /* imm14 @dtprel(S + A) */ #define R_IA_64_DTPREL22 0xb2 /* imm22 @dtprel(S + A) */ #define R_IA_64_DTPREL64I 0xb3 /* imm64 @dtprel(S + A) */ #define R_IA_64_DTPREL32MSB 0xb4 /* word32 MSB @dtprel(S + A) */ #define R_IA_64_DTPREL32LSB 0xb5 /* word32 LSB @dtprel(S + A) */ #define R_IA_64_DTPREL64MSB 0xb6 /* word64 MSB @dtprel(S + A) */ #define R_IA_64_DTPREL64LSB 0xb7 /* word64 LSB @dtprel(S + A) */ #define R_IA_64_LTOFF_DTPREL22 0xba /* imm22 @ltoff(@dtprel(S+A)) */ #define R_MIPS_NONE 0 /* No reloc */ #define R_MIPS_16 1 /* Direct 16 bit */ #define R_MIPS_32 2 /* Direct 32 bit */ #define R_MIPS_REL32 3 /* PC relative 32 bit */ #define R_MIPS_26 4 /* Direct 26 bit shifted */ #define R_MIPS_HI16 5 /* High 16 bit */ #define R_MIPS_LO16 6 /* Low 16 bit */ #define R_MIPS_GPREL16 7 /* GP relative 16 bit */ #define R_MIPS_LITERAL 8 /* 16 bit literal entry */ #define R_MIPS_GOT16 9 /* 16 bit GOT entry */ #define R_MIPS_PC16 10 /* PC relative 16 bit */ #define R_MIPS_CALL16 11 /* 16 bit GOT entry for function */ #define R_MIPS_GPREL32 12 /* GP relative 32 bit */ #define R_MIPS_64 18 /* Direct 64 bit */ #define R_MIPS_GOT_DISP 19 #define R_MIPS_GOT_PAGE 20 #define R_MIPS_GOT_OFST 21 #define R_MIPS_GOT_HI16 22 /* GOT HI 16 bit */ #define R_MIPS_GOT_LO16 23 /* GOT LO 16 bit */ #define R_MIPS_SUB 24 #define R_MIPS_CALLHI16 30 /* upper 16 bit GOT entry for function */ #define R_MIPS_CALLLO16 31 /* lower 16 bit GOT entry for function */ #define R_MIPS_JALR 37 #define R_MIPS_TLS_GD 42 #define R_MIPS_COPY 126 #define R_MIPS_JUMP_SLOT 127 #define R_PPC_NONE 0 /* No relocation. */ #define R_PPC_ADDR32 1 #define R_PPC_ADDR24 2 #define R_PPC_ADDR16 3 #define R_PPC_ADDR16_LO 4 #define R_PPC_ADDR16_HI 5 #define R_PPC_ADDR16_HA 6 #define R_PPC_ADDR14 7 #define R_PPC_ADDR14_BRTAKEN 8 #define R_PPC_ADDR14_BRNTAKEN 9 #define R_PPC_REL24 10 #define R_PPC_REL14 11 #define R_PPC_REL14_BRTAKEN 12 #define R_PPC_REL14_BRNTAKEN 13 #define R_PPC_GOT16 14 #define R_PPC_GOT16_LO 15 #define R_PPC_GOT16_HI 16 #define R_PPC_GOT16_HA 17 #define R_PPC_PLTREL24 18 #define R_PPC_COPY 19 #define R_PPC_GLOB_DAT 20 #define R_PPC_JMP_SLOT 21 #define R_PPC_RELATIVE 22 #define R_PPC_LOCAL24PC 23 #define R_PPC_UADDR32 24 #define R_PPC_UADDR16 25 #define R_PPC_REL32 26 #define R_PPC_PLT32 27 #define R_PPC_PLTREL32 28 #define R_PPC_PLT16_LO 29 #define R_PPC_PLT16_HI 30 #define R_PPC_PLT16_HA 31 #define R_PPC_SDAREL16 32 #define R_PPC_SECTOFF 33 #define R_PPC_SECTOFF_LO 34 #define R_PPC_SECTOFF_HI 35 #define R_PPC_SECTOFF_HA 36 /* * 64-bit relocations */ #define R_PPC64_ADDR64 38 #define R_PPC64_ADDR16_HIGHER 39 #define R_PPC64_ADDR16_HIGHERA 40 #define R_PPC64_ADDR16_HIGHEST 41 #define R_PPC64_ADDR16_HIGHESTA 42 #define R_PPC64_UADDR64 43 #define R_PPC64_REL64 44 #define R_PPC64_PLT64 45 #define R_PPC64_PLTREL64 46 #define R_PPC64_TOC16 47 #define R_PPC64_TOC16_LO 48 #define R_PPC64_TOC16_HI 49 #define R_PPC64_TOC16_HA 50 #define R_PPC64_TOC 51 #define R_PPC64_DTPMOD64 68 #define R_PPC64_TPREL64 73 #define R_PPC64_DTPREL64 78 /* * TLS relocations */ #define R_PPC_TLS 67 #define R_PPC_DTPMOD32 68 #define R_PPC_TPREL16 69 #define R_PPC_TPREL16_LO 70 #define R_PPC_TPREL16_HI 71 #define R_PPC_TPREL16_HA 72 #define R_PPC_TPREL32 73 #define R_PPC_DTPREL16 74 #define R_PPC_DTPREL16_LO 75 #define R_PPC_DTPREL16_HI 76 #define R_PPC_DTPREL16_HA 77 #define R_PPC_DTPREL32 78 #define R_PPC_GOT_TLSGD16 79 #define R_PPC_GOT_TLSGD16_LO 80 #define R_PPC_GOT_TLSGD16_HI 81 #define R_PPC_GOT_TLSGD16_HA 82 #define R_PPC_GOT_TLSLD16 83 #define R_PPC_GOT_TLSLD16_LO 84 #define R_PPC_GOT_TLSLD16_HI 85 #define R_PPC_GOT_TLSLD16_HA 86 #define R_PPC_GOT_TPREL16 87 #define R_PPC_GOT_TPREL16_LO 88 #define R_PPC_GOT_TPREL16_HI 89 #define R_PPC_GOT_TPREL16_HA 90 /* * The remaining relocs are from the Embedded ELF ABI, and are not in the * SVR4 ELF ABI. */ #define R_PPC_EMB_NADDR32 101 #define R_PPC_EMB_NADDR16 102 #define R_PPC_EMB_NADDR16_LO 103 #define R_PPC_EMB_NADDR16_HI 104 #define R_PPC_EMB_NADDR16_HA 105 #define R_PPC_EMB_SDAI16 106 #define R_PPC_EMB_SDA2I16 107 #define R_PPC_EMB_SDA2REL 108 #define R_PPC_EMB_SDA21 109 #define R_PPC_EMB_MRKREF 110 #define R_PPC_EMB_RELSEC16 111 #define R_PPC_EMB_RELST_LO 112 #define R_PPC_EMB_RELST_HI 113 #define R_PPC_EMB_RELST_HA 114 #define R_PPC_EMB_BIT_FLD 115 #define R_PPC_EMB_RELSDA 116 /* * RISC-V relocation types. */ /* Relocation types used by the dynamic linker. */ #define R_RISCV_NONE 0 #define R_RISCV_32 1 #define R_RISCV_64 2 #define R_RISCV_RELATIVE 3 #define R_RISCV_COPY 4 #define R_RISCV_JUMP_SLOT 5 #define R_RISCV_TLS_DTPMOD32 6 #define R_RISCV_TLS_DTPMOD64 7 #define R_RISCV_TLS_DTPREL32 8 #define R_RISCV_TLS_DTPREL64 9 #define R_RISCV_TLS_TPREL32 10 #define R_RISCV_TLS_TPREL64 11 /* Relocation types not used by the dynamic linker. */ #define R_RISCV_BRANCH 16 #define R_RISCV_JAL 17 #define R_RISCV_CALL 18 #define R_RISCV_CALL_PLT 19 #define R_RISCV_GOT_HI20 20 #define R_RISCV_TLS_GOT_HI20 21 #define R_RISCV_TLS_GD_HI20 22 #define R_RISCV_PCREL_HI20 23 #define R_RISCV_PCREL_LO12_I 24 #define R_RISCV_PCREL_LO12_S 25 #define R_RISCV_HI20 26 #define R_RISCV_LO12_I 27 #define R_RISCV_LO12_S 28 #define R_RISCV_TPREL_HI20 29 #define R_RISCV_TPREL_LO12_I 30 #define R_RISCV_TPREL_LO12_S 31 #define R_RISCV_TPREL_ADD 32 #define R_RISCV_ADD8 33 #define R_RISCV_ADD16 34 #define R_RISCV_ADD32 35 #define R_RISCV_ADD64 36 #define R_RISCV_SUB8 37 #define R_RISCV_SUB16 38 #define R_RISCV_SUB32 39 #define R_RISCV_SUB64 40 #define R_RISCV_GNU_VTINHERIT 41 #define R_RISCV_GNU_VTENTRY 42 #define R_RISCV_ALIGN 43 #define R_RISCV_RVC_BRANCH 44 #define R_RISCV_RVC_JUMP 45 #define R_SPARC_NONE 0 #define R_SPARC_8 1 #define R_SPARC_16 2 #define R_SPARC_32 3 #define R_SPARC_DISP8 4 #define R_SPARC_DISP16 5 #define R_SPARC_DISP32 6 #define R_SPARC_WDISP30 7 #define R_SPARC_WDISP22 8 #define R_SPARC_HI22 9 #define R_SPARC_22 10 #define R_SPARC_13 11 #define R_SPARC_LO10 12 #define R_SPARC_GOT10 13 #define R_SPARC_GOT13 14 #define R_SPARC_GOT22 15 #define R_SPARC_PC10 16 #define R_SPARC_PC22 17 #define R_SPARC_WPLT30 18 #define R_SPARC_COPY 19 #define R_SPARC_GLOB_DAT 20 #define R_SPARC_JMP_SLOT 21 #define R_SPARC_RELATIVE 22 #define R_SPARC_UA32 23 #define R_SPARC_PLT32 24 #define R_SPARC_HIPLT22 25 #define R_SPARC_LOPLT10 26 #define R_SPARC_PCPLT32 27 #define R_SPARC_PCPLT22 28 #define R_SPARC_PCPLT10 29 #define R_SPARC_10 30 #define R_SPARC_11 31 #define R_SPARC_64 32 #define R_SPARC_OLO10 33 #define R_SPARC_HH22 34 #define R_SPARC_HM10 35 #define R_SPARC_LM22 36 #define R_SPARC_PC_HH22 37 #define R_SPARC_PC_HM10 38 #define R_SPARC_PC_LM22 39 #define R_SPARC_WDISP16 40 #define R_SPARC_WDISP19 41 #define R_SPARC_GLOB_JMP 42 #define R_SPARC_7 43 #define R_SPARC_5 44 #define R_SPARC_6 45 #define R_SPARC_DISP64 46 #define R_SPARC_PLT64 47 #define R_SPARC_HIX22 48 #define R_SPARC_LOX10 49 #define R_SPARC_H44 50 #define R_SPARC_M44 51 #define R_SPARC_L44 52 #define R_SPARC_REGISTER 53 #define R_SPARC_UA64 54 #define R_SPARC_UA16 55 #define R_SPARC_TLS_GD_HI22 56 #define R_SPARC_TLS_GD_LO10 57 #define R_SPARC_TLS_GD_ADD 58 #define R_SPARC_TLS_GD_CALL 59 #define R_SPARC_TLS_LDM_HI22 60 #define R_SPARC_TLS_LDM_LO10 61 #define R_SPARC_TLS_LDM_ADD 62 #define R_SPARC_TLS_LDM_CALL 63 #define R_SPARC_TLS_LDO_HIX22 64 #define R_SPARC_TLS_LDO_LOX10 65 #define R_SPARC_TLS_LDO_ADD 66 #define R_SPARC_TLS_IE_HI22 67 #define R_SPARC_TLS_IE_LO10 68 #define R_SPARC_TLS_IE_LD 69 #define R_SPARC_TLS_IE_LDX 70 #define R_SPARC_TLS_IE_ADD 71 #define R_SPARC_TLS_LE_HIX22 72 #define R_SPARC_TLS_LE_LOX10 73 #define R_SPARC_TLS_DTPMOD32 74 #define R_SPARC_TLS_DTPMOD64 75 #define R_SPARC_TLS_DTPOFF32 76 #define R_SPARC_TLS_DTPOFF64 77 #define R_SPARC_TLS_TPOFF32 78 #define R_SPARC_TLS_TPOFF64 79 #define R_X86_64_NONE 0 /* No relocation. */ #define R_X86_64_64 1 /* Add 64 bit symbol value. */ #define R_X86_64_PC32 2 /* PC-relative 32 bit signed sym value. */ #define R_X86_64_GOT32 3 /* PC-relative 32 bit GOT offset. */ #define R_X86_64_PLT32 4 /* PC-relative 32 bit PLT offset. */ #define R_X86_64_COPY 5 /* Copy data from shared object. */ #define R_X86_64_GLOB_DAT 6 /* Set GOT entry to data address. */ #define R_X86_64_JMP_SLOT 7 /* Set GOT entry to code address. */ #define R_X86_64_RELATIVE 8 /* Add load address of shared object. */ #define R_X86_64_GOTPCREL 9 /* Add 32 bit signed pcrel offset to GOT. */ #define R_X86_64_32 10 /* Add 32 bit zero extended symbol value */ #define R_X86_64_32S 11 /* Add 32 bit sign extended symbol value */ #define R_X86_64_16 12 /* Add 16 bit zero extended symbol value */ #define R_X86_64_PC16 13 /* Add 16 bit signed extended pc relative symbol value */ #define R_X86_64_8 14 /* Add 8 bit zero extended symbol value */ #define R_X86_64_PC8 15 /* Add 8 bit signed extended pc relative symbol value */ #define R_X86_64_DTPMOD64 16 /* ID of module containing symbol */ #define R_X86_64_DTPOFF64 17 /* Offset in TLS block */ #define R_X86_64_TPOFF64 18 /* Offset in static TLS block */ #define R_X86_64_TLSGD 19 /* PC relative offset to GD GOT entry */ #define R_X86_64_TLSLD 20 /* PC relative offset to LD GOT entry */ #define R_X86_64_DTPOFF32 21 /* Offset in TLS block */ #define R_X86_64_GOTTPOFF 22 /* PC relative offset to IE GOT entry */ #define R_X86_64_TPOFF32 23 /* Offset in static TLS block */ #define R_X86_64_PC64 24 /* PC-relative 64 bit signed sym value. */ #define R_X86_64_GOTOFF64 25 #define R_X86_64_GOTPC32 26 #define R_X86_64_GOT64 27 #define R_X86_64_GOTPCREL64 28 #define R_X86_64_GOTPC64 29 #define R_X86_64_GOTPLT64 30 #define R_X86_64_PLTOFF64 31 #define R_X86_64_SIZE32 32 #define R_X86_64_SIZE64 33 #define R_X86_64_GOTPC32_TLSDESC 34 #define R_X86_64_TLSDESC_CALL 35 #define R_X86_64_TLSDESC 36 #define R_X86_64_IRELATIVE 37 #endif /* !_SYS_ELF_COMMON_H_ */ Index: head/usr.bin/gcore/elfcore.c =================================================================== --- head/usr.bin/gcore/elfcore.c (revision 323583) +++ head/usr.bin/gcore/elfcore.c (revision 323584) @@ -1,899 +1,930 @@ /*- * Copyright (c) 2017 Dell EMC * Copyright (c) 2007 Sandvine Incorporated * Copyright (c) 1998 John D. Polstra * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include __FBSDID("$FreeBSD$"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "extern.h" /* * Code for generating ELF core dumps. */ typedef void (*segment_callback)(vm_map_entry_t, void *); /* Closure for cb_put_phdr(). */ struct phdr_closure { Elf_Phdr *phdr; /* Program header to fill in */ Elf_Off offset; /* Offset of segment in core file */ }; /* Closure for cb_size_segment(). */ struct sseg_closure { int count; /* Count of writable segments. */ size_t size; /* Total size of all writable segments. */ }; #ifdef ELFCORE_COMPAT_32 typedef struct fpreg32 elfcore_fpregset_t; typedef struct reg32 elfcore_gregset_t; typedef struct prpsinfo32 elfcore_prpsinfo_t; typedef struct prstatus32 elfcore_prstatus_t; typedef struct ptrace_lwpinfo32 elfcore_lwpinfo_t; static void elf_convert_gregset(elfcore_gregset_t *rd, struct reg *rs); static void elf_convert_fpregset(elfcore_fpregset_t *rd, struct fpreg *rs); static void elf_convert_lwpinfo(struct ptrace_lwpinfo32 *pld, struct ptrace_lwpinfo *pls); #else typedef fpregset_t elfcore_fpregset_t; typedef gregset_t elfcore_gregset_t; typedef prpsinfo_t elfcore_prpsinfo_t; typedef prstatus_t elfcore_prstatus_t; typedef struct ptrace_lwpinfo elfcore_lwpinfo_t; #define elf_convert_gregset(d,s) *d = *s #define elf_convert_fpregset(d,s) *d = *s #define elf_convert_lwpinfo(d,s) *d = *s #endif typedef void* (*notefunc_t)(void *, size_t *); static void cb_put_phdr(vm_map_entry_t, void *); static void cb_size_segment(vm_map_entry_t, void *); static void each_dumpable_segment(vm_map_entry_t, segment_callback, void *closure); static void elf_detach(void); /* atexit() handler. */ static void *elf_note_fpregset(void *, size_t *); static void *elf_note_prpsinfo(void *, size_t *); static void *elf_note_prstatus(void *, size_t *); static void *elf_note_thrmisc(void *, size_t *); static void *elf_note_ptlwpinfo(void *, size_t *); +#if defined(__arm__) +static void *elf_note_arm_vfp(void *, size_t *); +#endif #if defined(__i386__) || defined(__amd64__) static void *elf_note_x86_xstate(void *, size_t *); #endif #if defined(__powerpc__) static void *elf_note_powerpc_vmx(void *, size_t *); #endif static void *elf_note_procstat_auxv(void *, size_t *); static void *elf_note_procstat_files(void *, size_t *); static void *elf_note_procstat_groups(void *, size_t *); static void *elf_note_procstat_osrel(void *, size_t *); static void *elf_note_procstat_proc(void *, size_t *); static void *elf_note_procstat_psstrings(void *, size_t *); static void *elf_note_procstat_rlimit(void *, size_t *); static void *elf_note_procstat_umask(void *, size_t *); static void *elf_note_procstat_vmmap(void *, size_t *); static void elf_puthdr(int, pid_t, vm_map_entry_t, void *, size_t, size_t, size_t, int); static void elf_putnote(int, notefunc_t, void *, struct sbuf *); static void elf_putnotes(pid_t, struct sbuf *, size_t *); static void freemap(vm_map_entry_t); static vm_map_entry_t readmap(pid_t); static void *procstat_sysctl(void *, int, size_t, size_t *sizep); static pid_t g_pid; /* Pid being dumped, global for elf_detach */ static int g_status; /* proc status after ptrace attach */ static int elf_ident(int efd, pid_t pid __unused, char *binfile __unused) { Elf_Ehdr hdr; int cnt; uint16_t machine; cnt = read(efd, &hdr, sizeof(hdr)); if (cnt != sizeof(hdr)) return (0); if (!IS_ELF(hdr)) return (0); switch (hdr.e_ident[EI_DATA]) { case ELFDATA2LSB: machine = le16toh(hdr.e_machine); break; case ELFDATA2MSB: machine = be16toh(hdr.e_machine); break; default: return (0); } if (!ELF_MACHINE_OK(machine)) return (0); /* Looks good. */ return (1); } static void elf_detach(void) { int sig; if (g_pid != 0) { /* * Forward any pending signals. SIGSTOP is generated by ptrace * itself, so ignore it. */ sig = WIFSTOPPED(g_status) ? WSTOPSIG(g_status) : 0; if (sig == SIGSTOP) sig = 0; ptrace(PT_DETACH, g_pid, (caddr_t)1, sig); } } /* * Write an ELF coredump for the given pid to the given fd. */ static void elf_coredump(int efd, int fd, pid_t pid) { vm_map_entry_t map; struct sseg_closure seginfo; struct sbuf *sb; void *hdr; size_t hdrsize, notesz, segoff; ssize_t n, old_len; Elf_Phdr *php; int i; /* Attach to process to dump. */ g_pid = pid; if (atexit(elf_detach) != 0) err(1, "atexit"); errno = 0; ptrace(PT_ATTACH, pid, NULL, 0); if (errno) err(1, "PT_ATTACH"); if (waitpid(pid, &g_status, 0) == -1) err(1, "waitpid"); /* Get the program's memory map. */ map = readmap(pid); /* Size the program segments. */ seginfo.count = 0; seginfo.size = 0; each_dumpable_segment(map, cb_size_segment, &seginfo); /* * Build the header and the notes using sbuf and write to the file. */ sb = sbuf_new_auto(); hdrsize = sizeof(Elf_Ehdr) + sizeof(Elf_Phdr) * (1 + seginfo.count); if (seginfo.count + 1 >= PN_XNUM) hdrsize += sizeof(Elf_Shdr); /* Start header + notes section. */ sbuf_start_section(sb, NULL); /* Make empty header subsection. */ sbuf_start_section(sb, &old_len); sbuf_putc(sb, 0); sbuf_end_section(sb, old_len, hdrsize, 0); /* Put notes. */ elf_putnotes(pid, sb, ¬esz); /* Align up to a page boundary for the program segments. */ sbuf_end_section(sb, -1, PAGE_SIZE, 0); if (sbuf_finish(sb) != 0) err(1, "sbuf_finish"); hdr = sbuf_data(sb); segoff = sbuf_len(sb); /* Fill in the header. */ elf_puthdr(efd, pid, map, hdr, hdrsize, notesz, segoff, seginfo.count); n = write(fd, hdr, segoff); if (n == -1) err(1, "write"); if (n < segoff) errx(1, "short write"); /* Write the contents of all of the writable segments. */ php = (Elf_Phdr *)((char *)hdr + sizeof(Elf_Ehdr)) + 1; for (i = 0; i < seginfo.count; i++) { struct ptrace_io_desc iorequest; uintmax_t nleft = php->p_filesz; iorequest.piod_op = PIOD_READ_D; iorequest.piod_offs = (caddr_t)(uintptr_t)php->p_vaddr; while (nleft > 0) { char buf[8*1024]; size_t nwant; ssize_t ngot; if (nleft > sizeof(buf)) nwant = sizeof buf; else nwant = nleft; iorequest.piod_addr = buf; iorequest.piod_len = nwant; ptrace(PT_IO, pid, (caddr_t)&iorequest, 0); ngot = iorequest.piod_len; if ((size_t)ngot < nwant) errx(1, "short read wanted %zu, got %zd", nwant, ngot); ngot = write(fd, buf, nwant); if (ngot == -1) err(1, "write of segment %d failed", i); if ((size_t)ngot != nwant) errx(1, "short write"); nleft -= nwant; iorequest.piod_offs += ngot; } php++; } sbuf_delete(sb); freemap(map); } /* * A callback for each_dumpable_segment() to write out the segment's * program header entry. */ static void cb_put_phdr(vm_map_entry_t entry, void *closure) { struct phdr_closure *phc = (struct phdr_closure *)closure; Elf_Phdr *phdr = phc->phdr; phc->offset = round_page(phc->offset); phdr->p_type = PT_LOAD; phdr->p_offset = phc->offset; phdr->p_vaddr = entry->start; phdr->p_paddr = 0; phdr->p_filesz = phdr->p_memsz = entry->end - entry->start; phdr->p_align = PAGE_SIZE; phdr->p_flags = 0; if (entry->protection & VM_PROT_READ) phdr->p_flags |= PF_R; if (entry->protection & VM_PROT_WRITE) phdr->p_flags |= PF_W; if (entry->protection & VM_PROT_EXECUTE) phdr->p_flags |= PF_X; phc->offset += phdr->p_filesz; phc->phdr++; } /* * A callback for each_dumpable_segment() to gather information about * the number of segments and their total size. */ static void cb_size_segment(vm_map_entry_t entry, void *closure) { struct sseg_closure *ssc = (struct sseg_closure *)closure; ssc->count++; ssc->size += entry->end - entry->start; } /* * For each segment in the given memory map, call the given function * with a pointer to the map entry and some arbitrary caller-supplied * data. */ static void each_dumpable_segment(vm_map_entry_t map, segment_callback func, void *closure) { vm_map_entry_t entry; for (entry = map; entry != NULL; entry = entry->next) (*func)(entry, closure); } static void elf_putnotes(pid_t pid, struct sbuf *sb, size_t *sizep) { lwpid_t *tids; size_t threads, old_len; ssize_t size; int i; errno = 0; threads = ptrace(PT_GETNUMLWPS, pid, NULL, 0); if (errno) err(1, "PT_GETNUMLWPS"); tids = malloc(threads * sizeof(*tids)); if (tids == NULL) errx(1, "out of memory"); errno = 0; ptrace(PT_GETLWPLIST, pid, (void *)tids, threads); if (errno) err(1, "PT_GETLWPLIST"); sbuf_start_section(sb, &old_len); elf_putnote(NT_PRPSINFO, elf_note_prpsinfo, &pid, sb); for (i = 0; i < threads; ++i) { elf_putnote(NT_PRSTATUS, elf_note_prstatus, tids + i, sb); elf_putnote(NT_FPREGSET, elf_note_fpregset, tids + i, sb); elf_putnote(NT_THRMISC, elf_note_thrmisc, tids + i, sb); elf_putnote(NT_PTLWPINFO, elf_note_ptlwpinfo, tids + i, sb); +#if defined(__arm__) + elf_putnote(NT_ARM_VFP, elf_note_arm_vfp, tids + i, sb); +#endif #if defined(__i386__) || defined(__amd64__) elf_putnote(NT_X86_XSTATE, elf_note_x86_xstate, tids + i, sb); #endif #if defined(__powerpc__) elf_putnote(NT_PPC_VMX, elf_note_powerpc_vmx, tids + i, sb); #endif } #ifndef ELFCORE_COMPAT_32 elf_putnote(NT_PROCSTAT_PROC, elf_note_procstat_proc, &pid, sb); elf_putnote(NT_PROCSTAT_FILES, elf_note_procstat_files, &pid, sb); elf_putnote(NT_PROCSTAT_VMMAP, elf_note_procstat_vmmap, &pid, sb); elf_putnote(NT_PROCSTAT_GROUPS, elf_note_procstat_groups, &pid, sb); elf_putnote(NT_PROCSTAT_UMASK, elf_note_procstat_umask, &pid, sb); elf_putnote(NT_PROCSTAT_RLIMIT, elf_note_procstat_rlimit, &pid, sb); elf_putnote(NT_PROCSTAT_OSREL, elf_note_procstat_osrel, &pid, sb); elf_putnote(NT_PROCSTAT_PSSTRINGS, elf_note_procstat_psstrings, &pid, sb); elf_putnote(NT_PROCSTAT_AUXV, elf_note_procstat_auxv, &pid, sb); #endif size = sbuf_end_section(sb, old_len, 1, 0); if (size == -1) err(1, "sbuf_end_section"); free(tids); *sizep = size; } /* * Emit one note section to sbuf. */ static void elf_putnote(int type, notefunc_t notefunc, void *arg, struct sbuf *sb) { Elf_Note note; size_t descsz; ssize_t old_len; void *desc; desc = notefunc(arg, &descsz); note.n_namesz = 8; /* strlen("FreeBSD") + 1 */ note.n_descsz = descsz; note.n_type = type; sbuf_bcat(sb, ¬e, sizeof(note)); sbuf_start_section(sb, &old_len); sbuf_bcat(sb, "FreeBSD", note.n_namesz); sbuf_end_section(sb, old_len, sizeof(Elf32_Size), 0); if (descsz == 0) return; sbuf_start_section(sb, &old_len); sbuf_bcat(sb, desc, descsz); sbuf_end_section(sb, old_len, sizeof(Elf32_Size), 0); free(desc); } /* * Generate the ELF coredump header. */ static void elf_puthdr(int efd, pid_t pid, vm_map_entry_t map, void *hdr, size_t hdrsize, size_t notesz, size_t segoff, int numsegs) { Elf_Ehdr *ehdr, binhdr; Elf_Phdr *phdr; Elf_Shdr *shdr; struct phdr_closure phc; ssize_t cnt; cnt = read(efd, &binhdr, sizeof(binhdr)); if (cnt < 0) err(1, "Failed to re-read ELF header"); else if (cnt != sizeof(binhdr)) errx(1, "Failed to re-read ELF header"); ehdr = (Elf_Ehdr *)hdr; ehdr->e_ident[EI_MAG0] = ELFMAG0; ehdr->e_ident[EI_MAG1] = ELFMAG1; ehdr->e_ident[EI_MAG2] = ELFMAG2; ehdr->e_ident[EI_MAG3] = ELFMAG3; ehdr->e_ident[EI_CLASS] = ELF_CLASS; ehdr->e_ident[EI_DATA] = ELF_DATA; ehdr->e_ident[EI_VERSION] = EV_CURRENT; ehdr->e_ident[EI_OSABI] = ELFOSABI_FREEBSD; ehdr->e_ident[EI_ABIVERSION] = 0; ehdr->e_ident[EI_PAD] = 0; ehdr->e_type = ET_CORE; ehdr->e_machine = binhdr.e_machine; ehdr->e_version = EV_CURRENT; ehdr->e_entry = 0; ehdr->e_phoff = sizeof(Elf_Ehdr); ehdr->e_flags = binhdr.e_flags; ehdr->e_ehsize = sizeof(Elf_Ehdr); ehdr->e_phentsize = sizeof(Elf_Phdr); ehdr->e_shentsize = sizeof(Elf_Shdr); ehdr->e_shstrndx = SHN_UNDEF; if (numsegs + 1 < PN_XNUM) { ehdr->e_phnum = numsegs + 1; ehdr->e_shnum = 0; } else { ehdr->e_phnum = PN_XNUM; ehdr->e_shnum = 1; ehdr->e_shoff = ehdr->e_phoff + (numsegs + 1) * ehdr->e_phentsize; shdr = (Elf_Shdr *)((char *)hdr + ehdr->e_shoff); memset(shdr, 0, sizeof(*shdr)); /* * A special first section is used to hold large segment and * section counts. This was proposed by Sun Microsystems in * Solaris and has been adopted by Linux; the standard ELF * tools are already familiar with the technique. * * See table 7-7 of the Solaris "Linker and Libraries Guide" * (or 12-7 depending on the version of the document) for more * details. */ shdr->sh_type = SHT_NULL; shdr->sh_size = ehdr->e_shnum; shdr->sh_link = ehdr->e_shstrndx; shdr->sh_info = numsegs + 1; } /* * Fill in the program header entries. */ phdr = (Elf_Phdr *)((char *)hdr + ehdr->e_phoff); /* The note segement. */ phdr->p_type = PT_NOTE; phdr->p_offset = hdrsize; phdr->p_vaddr = 0; phdr->p_paddr = 0; phdr->p_filesz = notesz; phdr->p_memsz = 0; phdr->p_flags = PF_R; phdr->p_align = sizeof(Elf32_Size); phdr++; /* All the writable segments from the program. */ phc.phdr = phdr; phc.offset = segoff; each_dumpable_segment(map, cb_put_phdr, &phc); } /* * Free the memory map. */ static void freemap(vm_map_entry_t map) { while (map != NULL) { vm_map_entry_t next = map->next; free(map); map = next; } } /* * Read the process's memory map using kinfo_getvmmap(), and return a list of * VM map entries. Only the non-device read/writable segments are * returned. The map entries in the list aren't fully filled in; only * the items we need are present. */ static vm_map_entry_t readmap(pid_t pid) { vm_map_entry_t ent, *linkp, map; struct kinfo_vmentry *vmentl, *kve; int i, nitems; vmentl = kinfo_getvmmap(pid, &nitems); if (vmentl == NULL) err(1, "cannot retrieve mappings for %u process", pid); map = NULL; linkp = ↦ for (i = 0; i < nitems; i++) { kve = &vmentl[i]; /* * Ignore 'malformed' segments or ones representing memory * mapping with MAP_NOCORE on. * If the 'full' support is disabled, just dump the most * meaningful data segments. */ if ((kve->kve_protection & KVME_PROT_READ) == 0 || (kve->kve_flags & KVME_FLAG_NOCOREDUMP) != 0 || kve->kve_type == KVME_TYPE_DEAD || kve->kve_type == KVME_TYPE_UNKNOWN || ((pflags & PFLAGS_FULL) == 0 && kve->kve_type != KVME_TYPE_DEFAULT && kve->kve_type != KVME_TYPE_VNODE && kve->kve_type != KVME_TYPE_SWAP && kve->kve_type != KVME_TYPE_PHYS)) continue; ent = calloc(1, sizeof(*ent)); if (ent == NULL) errx(1, "out of memory"); ent->start = (vm_offset_t)kve->kve_start; ent->end = (vm_offset_t)kve->kve_end; ent->protection = VM_PROT_READ | VM_PROT_WRITE; if ((kve->kve_protection & KVME_PROT_EXEC) != 0) ent->protection |= VM_PROT_EXECUTE; *linkp = ent; linkp = &ent->next; } free(vmentl); return (map); } /* * Miscellaneous note out functions. */ static void * elf_note_prpsinfo(void *arg, size_t *sizep) { char *cp, *end; pid_t pid; elfcore_prpsinfo_t *psinfo; struct kinfo_proc kip; size_t len; int name[4]; pid = *(pid_t *)arg; psinfo = calloc(1, sizeof(*psinfo)); if (psinfo == NULL) errx(1, "out of memory"); psinfo->pr_version = PRPSINFO_VERSION; psinfo->pr_psinfosz = sizeof(*psinfo); name[0] = CTL_KERN; name[1] = KERN_PROC; name[2] = KERN_PROC_PID; name[3] = pid; len = sizeof(kip); if (sysctl(name, 4, &kip, &len, NULL, 0) == -1) err(1, "kern.proc.pid.%u", pid); if (kip.ki_pid != pid) err(1, "kern.proc.pid.%u", pid); strlcpy(psinfo->pr_fname, kip.ki_comm, sizeof(psinfo->pr_fname)); name[2] = KERN_PROC_ARGS; len = sizeof(psinfo->pr_psargs) - 1; if (sysctl(name, 4, psinfo->pr_psargs, &len, NULL, 0) == 0 && len > 0) { cp = psinfo->pr_psargs; end = cp + len - 1; for (;;) { cp = memchr(cp, '\0', end - cp); if (cp == NULL) break; *cp = ' '; } } else strlcpy(psinfo->pr_psargs, kip.ki_comm, sizeof(psinfo->pr_psargs)); psinfo->pr_pid = pid; *sizep = sizeof(*psinfo); return (psinfo); } static void * elf_note_prstatus(void *arg, size_t *sizep) { lwpid_t tid; elfcore_prstatus_t *status; struct reg greg; tid = *(lwpid_t *)arg; status = calloc(1, sizeof(*status)); if (status == NULL) errx(1, "out of memory"); status->pr_version = PRSTATUS_VERSION; status->pr_statussz = sizeof(*status); status->pr_gregsetsz = sizeof(elfcore_gregset_t); status->pr_fpregsetsz = sizeof(elfcore_fpregset_t); status->pr_osreldate = __FreeBSD_version; status->pr_pid = tid; ptrace(PT_GETREGS, tid, (void *)&greg, 0); elf_convert_gregset(&status->pr_reg, &greg); *sizep = sizeof(*status); return (status); } static void * elf_note_fpregset(void *arg, size_t *sizep) { lwpid_t tid; elfcore_fpregset_t *fpregset; fpregset_t fpreg; tid = *(lwpid_t *)arg; fpregset = calloc(1, sizeof(*fpregset)); if (fpregset == NULL) errx(1, "out of memory"); ptrace(PT_GETFPREGS, tid, (void *)&fpreg, 0); elf_convert_fpregset(fpregset, &fpreg); *sizep = sizeof(*fpregset); return (fpregset); } static void * elf_note_thrmisc(void *arg, size_t *sizep) { lwpid_t tid; struct ptrace_lwpinfo lwpinfo; thrmisc_t *thrmisc; tid = *(lwpid_t *)arg; thrmisc = calloc(1, sizeof(*thrmisc)); if (thrmisc == NULL) errx(1, "out of memory"); ptrace(PT_LWPINFO, tid, (void *)&lwpinfo, sizeof(lwpinfo)); memset(&thrmisc->_pad, 0, sizeof(thrmisc->_pad)); strcpy(thrmisc->pr_tname, lwpinfo.pl_tdname); *sizep = sizeof(*thrmisc); return (thrmisc); } static void * elf_note_ptlwpinfo(void *arg, size_t *sizep) { lwpid_t tid; elfcore_lwpinfo_t *elf_info; struct ptrace_lwpinfo lwpinfo; void *p; tid = *(lwpid_t *)arg; p = calloc(1, sizeof(int) + sizeof(elfcore_lwpinfo_t)); if (p == NULL) errx(1, "out of memory"); *(int *)p = sizeof(elfcore_lwpinfo_t); elf_info = (void *)((int *)p + 1); ptrace(PT_LWPINFO, tid, (void *)&lwpinfo, sizeof(lwpinfo)); elf_convert_lwpinfo(elf_info, &lwpinfo); *sizep = sizeof(int) + sizeof(struct ptrace_lwpinfo); return (p); } + +#if defined(__arm__) +static void * +elf_note_arm_vfp(void *arg, size_t *sizep) +{ + lwpid_t tid; + struct vfpreg *vfp; + static bool has_vfp = true; + struct vfpreg info; + + tid = *(lwpid_t *)arg; + if (has_vfp) { + if (ptrace(PT_GETVFPREGS, tid, (void *)&info, 0) != 0) + has_vfp = false; + } + if (!has_vfp) { + *sizep = 0; + return (NULL); + } + vfp = calloc(1, sizeof(*vfp)); + memcpy(vfp, &info, sizeof(*vfp)); + *sizep = sizeof(*vfp); + return (vfp); +} +#endif #if defined(__i386__) || defined(__amd64__) static void * elf_note_x86_xstate(void *arg, size_t *sizep) { lwpid_t tid; char *xstate; static bool xsave_checked = false; static struct ptrace_xstate_info info; tid = *(lwpid_t *)arg; if (!xsave_checked) { if (ptrace(PT_GETXSTATE_INFO, tid, (void *)&info, sizeof(info)) != 0) info.xsave_len = 0; xsave_checked = true; } if (info.xsave_len == 0) { *sizep = 0; return (NULL); } xstate = calloc(1, info.xsave_len); ptrace(PT_GETXSTATE, tid, xstate, 0); *(uint64_t *)(xstate + X86_XSTATE_XCR0_OFFSET) = info.xsave_mask; *sizep = info.xsave_len; return (xstate); } #endif #if defined(__powerpc__) static void * elf_note_powerpc_vmx(void *arg, size_t *sizep) { lwpid_t tid; struct vmxreg *vmx; static bool has_vmx = true; struct vmxreg info; tid = *(lwpid_t *)arg; if (has_vmx) { if (ptrace(PT_GETVRREGS, tid, (void *)&info, sizeof(info)) != 0) has_vmx = false; } if (!has_vmx) { *sizep = 0; return (NULL); } vmx = calloc(1, sizeof(*vmx)); memcpy(vmx, &info, sizeof(*vmx)); *sizep = sizeof(*vmx); return (vmx); } #endif static void * procstat_sysctl(void *arg, int what, size_t structsz, size_t *sizep) { size_t len; pid_t pid; int name[4], structsize; void *buf, *p; pid = *(pid_t *)arg; structsize = structsz; name[0] = CTL_KERN; name[1] = KERN_PROC; name[2] = what; name[3] = pid; len = 0; if (sysctl(name, 4, NULL, &len, NULL, 0) == -1) err(1, "kern.proc.%d.%u", what, pid); buf = calloc(1, sizeof(structsize) + len * 4 / 3); if (buf == NULL) errx(1, "out of memory"); bcopy(&structsize, buf, sizeof(structsize)); p = (char *)buf + sizeof(structsize); if (sysctl(name, 4, p, &len, NULL, 0) == -1) err(1, "kern.proc.%d.%u", what, pid); *sizep = sizeof(structsize) + len; return (buf); } static void * elf_note_procstat_proc(void *arg, size_t *sizep) { return (procstat_sysctl(arg, KERN_PROC_PID | KERN_PROC_INC_THREAD, sizeof(struct kinfo_proc), sizep)); } static void * elf_note_procstat_files(void *arg, size_t *sizep) { return (procstat_sysctl(arg, KERN_PROC_FILEDESC, sizeof(struct kinfo_file), sizep)); } static void * elf_note_procstat_vmmap(void *arg, size_t *sizep) { return (procstat_sysctl(arg, KERN_PROC_VMMAP, sizeof(struct kinfo_vmentry), sizep)); } static void * elf_note_procstat_groups(void *arg, size_t *sizep) { return (procstat_sysctl(arg, KERN_PROC_GROUPS, sizeof(gid_t), sizep)); } static void * elf_note_procstat_umask(void *arg, size_t *sizep) { return (procstat_sysctl(arg, KERN_PROC_UMASK, sizeof(u_short), sizep)); } static void * elf_note_procstat_osrel(void *arg, size_t *sizep) { return (procstat_sysctl(arg, KERN_PROC_OSREL, sizeof(int), sizep)); } static void * elf_note_procstat_psstrings(void *arg, size_t *sizep) { return (procstat_sysctl(arg, KERN_PROC_PS_STRINGS, sizeof(vm_offset_t), sizep)); } static void * elf_note_procstat_auxv(void *arg, size_t *sizep) { return (procstat_sysctl(arg, KERN_PROC_AUXV, sizeof(Elf_Auxinfo), sizep)); } static void * elf_note_procstat_rlimit(void *arg, size_t *sizep) { pid_t pid; size_t len; int i, name[5], structsize; void *buf, *p; pid = *(pid_t *)arg; structsize = sizeof(struct rlimit) * RLIM_NLIMITS; buf = calloc(1, sizeof(structsize) + structsize); if (buf == NULL) errx(1, "out of memory"); bcopy(&structsize, buf, sizeof(structsize)); p = (char *)buf + sizeof(structsize); name[0] = CTL_KERN; name[1] = KERN_PROC; name[2] = KERN_PROC_RLIMIT; name[3] = pid; len = sizeof(struct rlimit); for (i = 0; i < RLIM_NLIMITS; i++) { name[4] = i; if (sysctl(name, 5, p, &len, NULL, 0) == -1) err(1, "kern.proc.rlimit.%u", pid); if (len != sizeof(struct rlimit)) errx(1, "kern.proc.rlimit.%u: short read", pid); p += len; } *sizep = sizeof(structsize) + structsize; return (buf); } struct dumpers __elfN(dump) = { elf_ident, elf_coredump }; TEXT_SET(dumpset, __elfN(dump));