From 0dd593fff25b655714f1c1473c532d4235d232a1 Mon Sep 17 00:00:00 2001 From: Ali Mashtizadeh Date: Sun, 27 Jul 2014 17:09:31 -0700 Subject: [PATCH] User space working --- SConstruct | 2 + include/stdlib.h | 3 + lib/libc/SConscript | 19 + lib/libc/exit.c | 16 + sbin/init/SConscript | 21 + sbin/init/init.c | 7 + sys/SConscript | 1 + sys/amd64/include/pmap.h | 9 +- sys/amd64/machine.c | 9 +- sys/amd64/pmap.c | 139 ++++-- sys/amd64/trap.c | 16 +- sys/include/elf.h | 41 ++ sys/include/elf32.h | 245 ++++++++++ sys/include/elf64.h | 248 ++++++++++ sys/include/elf_common.h | 994 ++++++++++++++++++++++++++++++++++++++ sys/include/elf_generic.h | 88 ++++ sys/include/kmem.h | 7 + sys/include/thread.h | 1 + sys/kern/loader.c | 111 +++++ sys/kern/thread.c | 6 + 20 files changed, 1935 insertions(+), 48 deletions(-) create mode 100644 lib/libc/SConscript create mode 100644 lib/libc/exit.c create mode 100644 sbin/init/SConscript create mode 100644 sbin/init/init.c create mode 100644 sys/include/elf.h create mode 100644 sys/include/elf32.h create mode 100644 sys/include/elf64.h create mode 100644 sys/include/elf_common.h create mode 100644 sys/include/elf_generic.h create mode 100644 sys/kern/loader.c diff --git a/SConstruct b/SConstruct index 4d862dd..fef8d65 100644 --- a/SConstruct +++ b/SConstruct @@ -149,6 +149,8 @@ CopyTree('build/include/machine', 'sys/' + env['ARCH'] + '/include', env) # Build Targets SConscript('sys/SConscript', variant_dir='build/sys') +SConscript('lib/libc/SConscript', variant_dir='build/lib/libc') +SConscript('sbin/init/SConscript', variant_dir='build/sbin/init') # Install Targets env.Install('$PREFIX/','build/sys/castor') diff --git a/include/stdlib.h b/include/stdlib.h index 5423ca0..fb9f50c 100644 --- a/include/stdlib.h +++ b/include/stdlib.h @@ -6,5 +6,8 @@ #define NULL ((void *)0) #endif +int atexit(void (*function)(void)); +void exit(int status); + #endif /* __STDLIB_H__ */ diff --git a/lib/libc/SConscript b/lib/libc/SConscript new file mode 100644 index 0000000..3e0f433 --- /dev/null +++ b/lib/libc/SConscript @@ -0,0 +1,19 @@ +import sys + +Import('env') + +libc_env = env.Clone() + +src = [ ] + +src_common = [ + "exit.c" +] + +src.append(src_common) + +libc_env.Append(CPPFLAGS = ['-nostdinc']) +libc_env.Append(CPPPATH = ['#build/include']) + +libc_env.StaticLibrary("libc", src) + diff --git a/lib/libc/exit.c b/lib/libc/exit.c new file mode 100644 index 0000000..3614d11 --- /dev/null +++ b/lib/libc/exit.c @@ -0,0 +1,16 @@ + +#include + +int +atexit(void (*function)(void)) +{ +} + +void +exit(int status) +{ + // + + __builtin_unreachable(); +} + diff --git a/sbin/init/SConscript b/sbin/init/SConscript new file mode 100644 index 0000000..ea4e5e3 --- /dev/null +++ b/sbin/init/SConscript @@ -0,0 +1,21 @@ +import sys + +Import('env') + +init_env = env.Clone() + +src = [ ] + +src_common = [ + "init.c" +] + +src.append(src_common) + +init_env.Append(LINKFLAGS = ['-nostdlib']) +init_env.Append(CPPFLAGS = ['-nostdinc']) +init_env.Append(CPPPATH = ['#build/include']) +init_env.Append(LIBPATH = ['#build/lib/libc'], LIBS = ['c']) + +init_env.Program("init", src) + diff --git a/sbin/init/init.c b/sbin/init/init.c new file mode 100644 index 0000000..af14598 --- /dev/null +++ b/sbin/init/init.c @@ -0,0 +1,7 @@ + +int +main(int argc, const char *argv[]) +{ + asm volatile("int3"); +} + diff --git a/sys/SConscript b/sys/SConscript index 30b73b2..9ffc3a5 100644 --- a/sys/SConscript +++ b/sys/SConscript @@ -37,6 +37,7 @@ src_common = [ "kern/debug.c", "kern/disk.c", "kern/libc.c", + "kern/loader.c", "kern/palloc.c", "kern/printf.c", "kern/spinlock.c", diff --git a/sys/amd64/include/pmap.h b/sys/amd64/include/pmap.h index 9dc645f..c5de233 100644 --- a/sys/amd64/include/pmap.h +++ b/sys/amd64/include/pmap.h @@ -49,9 +49,16 @@ void PMap_Init(); AS* PMap_NewAS(); void PMap_DestroyAS(AS *space); void PMap_LoadAS(AS *space); +void PMap_Dump(AS *space); + +// Manipulate User Memory +bool PMap_Map(AS *as, uint64_t phys, uint64_t virt, uint64_t pages, uint64_t flags); +bool PMap_Unmap(AS *as, uint64_t virt, uint64_t pages); + +// Manipulate Kernel Memory void PMap_SystemLookup(uint64_t va, PageEntry **entry, int size); bool PMap_SystemLMap(uint64_t phys, uint64_t virt, uint64_t lpages, uint64_t flags); -bool PMap_SystemMap(uint64_t phys, uint64_t virt, uint64_t pages); +bool PMap_SystemMap(uint64_t phys, uint64_t virt, uint64_t pages, uint64_t flags); bool PMap_SystemUnmap(uint64_t virt, uint64_t pages); #endif /* __PMAP_H__ */ diff --git a/sys/amd64/machine.c b/sys/amd64/machine.c index fdfd4f4..a7573cb 100644 --- a/sys/amd64/machine.c +++ b/sys/amd64/machine.c @@ -15,6 +15,7 @@ #include #include +#include #include "../dev/console.h" @@ -44,14 +45,14 @@ void Machine_GDTInit() GDT[c][3] = 0x0; // TSS + offset = (uint64_t)&TSS[c]; GDT[c][4] = sizeof(TaskStateSegment64); - offset = (uint64_t)&TSS[0]; tmp = offset & 0x00FFFFFF; GDT[c][4] |= (tmp << 16); tmp = offset & 0xFF000000; GDT[c][4] |= (tmp << 56); GDT[c][4] |= 0x89ULL << 40; - GDT[c][5] = 0x0; + GDT[c][5] = offset >> 32; GDT[c][6] = 0x00AFFA000000FFFFULL; /* User CS */ GDT[c][7] = 0x00CFF2000000FFFFULL; /* User DS */ @@ -82,7 +83,7 @@ void Machine_TSSInit() TSS[c].ist5 = 0x0; TSS[c].ist6 = 0x0; TSS[c].ist7 = 0x0; - TSS[c].rsp0 = 0; + TSS[c].rsp0 = (uint64_t)&df_stack; TSS[c].rsp1 = 0; TSS[c].rsp2 = 0; @@ -144,6 +145,8 @@ void Machine_Init() } Thread_SetRunnable(thr); + Loader_LoadInit(); + breakpoint(); } diff --git a/sys/amd64/pmap.c b/sys/amd64/pmap.c index 157376e..7e96524 100644 --- a/sys/amd64/pmap.c +++ b/sys/amd64/pmap.c @@ -156,7 +156,7 @@ PMapLookupEntry(AS *space, uint64_t va, PageEntry **entry, int size) if (!newtable) return; - pte = DMVA2PA((uint64_t)newtable) | PTE_P | PTE_W; + pte = DMVA2PA((uint64_t)newtable) | PTE_P | PTE_W | PTE_U; table->entries[i] = pte; } table = (PageTable *)DMPA2VA(pte & 0xFFFFFFFFFFFFF000); @@ -172,7 +172,7 @@ PMapLookupEntry(AS *space, uint64_t va, PageEntry **entry, int size) if (!newtable) return; - pte = DMVA2PA((uint64_t)newtable) | PTE_P | PTE_W; + pte = DMVA2PA((uint64_t)newtable) | PTE_P | PTE_W | PTE_U; table->entries[j] = pte; } table = (PageTable *)DMPA2VA(pte & 0xFFFFFFFFFFFFF000); @@ -188,7 +188,7 @@ PMapLookupEntry(AS *space, uint64_t va, PageEntry **entry, int size) if (!newtable) return; - pte = DMVA2PA((uint64_t)newtable) | PTE_P | PTE_W; + pte = DMVA2PA((uint64_t)newtable) | PTE_P | PTE_W | PTE_U; table->entries[k] = pte; } table = (PageTable *)DMPA2VA(pte & 0xFFFFFFFFFFFFF000); @@ -199,45 +199,24 @@ PMapLookupEntry(AS *space, uint64_t va, PageEntry **entry, int size) return; } -void -PMapDump(AS *space) +bool +PMap_Map(AS *as, uint64_t phys, uint64_t virt, uint64_t pages, uint64_t flags) { - int i,j,k; - PageTable *root = space->root; + int i; + PageEntry *entry; - kprintf("Root: %016llx\n", (uint64_t)space->root); - - for (i = 0; i < PAGETABLE_ENTRIES; i++) { - PageEntry pte = root->entries[i]; - PageTable *l1 = (PageTable *)DMPA2VA(pte & 0xFFFFFFFFFFFFF000); - - if (!(pte & PTE_P)) - continue; - - kprintf("Level 1: %016llx\n", (uint64_t)pte); - - for (j = 0; j < PAGETABLE_ENTRIES; j++) { - PageEntry pte = l1->entries[j]; - PageTable *l2 = (PageTable *)DMPA2VA(pte & 0xFFFFFFFFFFFFF000); - - if (!(pte & PTE_P)) - continue; - - kprintf("Level 2: %016llx\n", (uint64_t)pte); - - for (k = 0; k < PAGETABLE_ENTRIES; k++) { - PageEntry pte = l2->entries[k]; - PageTable *l3 = (PageTable *)DMPA2VA(pte & 0xFFFFFFFFFFFFF000); - - if (!(pte & PTE_P)) - continue; - - kprintf("Level 3: %016llx\n", (uint64_t)pte); - } + for (i = 0; i < pages; i++) { + uint64_t va = virt + PGSIZE * i; + PMapLookupEntry(as, va, &entry, PGSIZE); + if (!entry) { + kprintf("Map failed to allocate memory!\n"); + return false; } + + *entry = (phys + PGSIZE * i) | PTE_P | PTE_W | PTE_U | flags; } - return; + return true; } void @@ -267,10 +246,23 @@ PMap_SystemLMap(uint64_t phys, uint64_t virt, uint64_t lpages, uint64_t flags) } bool -PMap_SystemMap(uint64_t phys, uint64_t virt, uint64_t pages) +PMap_SystemMap(uint64_t phys, uint64_t virt, uint64_t pages, uint64_t flags) { - NOT_IMPLEMENTED(); - return false; + int i; + PageEntry *entry; + + for (i = 0; i < pages; i++) { + uint64_t va = virt + PGSIZE * i; + PMapLookupEntry(&systemAS, va, &entry, PGSIZE); + if (!entry) { + kprintf("SystemMap failed to allocate memory!\n"); + return false; + } + + *entry = (phys + PGSIZE * i) | PTE_P | PTE_W | flags; + } + + return true; } bool @@ -280,10 +272,75 @@ PMap_SystemUnmap(uint64_t virt, uint64_t pages) return false; } +uint64_t +AddrFromIJKL(uint64_t i, uint64_t j, uint64_t k, uint64_t l) +{ + return (i << 39) | (j << HUGE_PGSHIFT) | (k << LARGE_PGSHIFT) | (l << PGSHIFT); +} + +void +PMap_Dump(AS *space) +{ + int i = 0; + int j = 0; + int k = 0; + int l = 0; + PageTable *root = space->root; + + kprintf("Root: %016llx\n", (uint64_t)space->root); + + for (i = 0; i < PAGETABLE_ENTRIES; i++) { + PageEntry pte = root->entries[i]; + PageTable *l1 = (PageTable *)DMPA2VA(pte & 0xFFFFFFFFFFFFF000); + + if (!(pte & PTE_P)) + continue; + + kprintf("Level 1: %016llx\n", (uint64_t)pte); + + for (j = 0; j < PAGETABLE_ENTRIES; j++) { + PageEntry pte = l1->entries[j]; + PageTable *l2 = (PageTable *)DMPA2VA(pte & 0xFFFFFFFFFFFFF000); + + if (!(pte & PTE_P)) + continue; + + kprintf("Level 2: %016llx\n", (uint64_t)pte); + + for (k = 0; k < PAGETABLE_ENTRIES; k++) { + PageEntry pte = l2->entries[k]; + PageTable *l3 = (PageTable *)DMPA2VA(pte & 0xFFFFFFFFFFFFF000); + + if (!(pte & PTE_P)) + continue; + + kprintf("Level 3: %016llx:%016llx\n", + AddrFromIJKL(i, j, k, l), + (uint64_t)pte); + + if ((pte & PTE_PS) == 0) { + for (l = 0; l < PAGETABLE_ENTRIES; l++) { + PageEntry pte = l3->entries[l]; + + kprintf("Level 4: %016llx:%016llx\n", + AddrFromIJKL(i, j, k, l), + (uint64_t)pte); + } + l = 0; + } + } + k = 0; + } + j = 0; + } + + return; +} + void Debug_PMapDump(int argc, const char *argv[]) { - PMapDump(&systemAS); + PMap_Dump(currentAS[THISCPU()]); } REGISTER_DBGCMD(pmapdump, "Dump memory mappings", Debug_PMapDump); diff --git a/sys/amd64/trap.c b/sys/amd64/trap.c index e0da5ae..5eafb05 100644 --- a/sys/amd64/trap.c +++ b/sys/amd64/trap.c @@ -60,6 +60,11 @@ Trap_Init() idt[T_NP].ist = 0x01; idt[T_SS].ist = 0x01; + // Enable Breakpoint and Syscall from Userspace + idt[T_DB].type = 0xEE; + idt[T_BP].type = 0xEE; + idt[T_SYSCALL].type = 0xEE; + idtdesc.off = (uint64_t)&idt; idtdesc.lim = sizeof(idt) - 1; @@ -133,14 +138,19 @@ trap_entry(TrapFrame *tf) switch (tf->vector) { case T_DE: + kprintf("Divide by Zero\n"); + return; case T_DB: case T_BP: case T_UD: - case T_DF: + kprintf("Userlevel breakpoint\n"); + Debug_Breakpoint(tf); + return; case T_SYSCALL: - break; + kprintf("Userlevel syscall\n"); + return; default: - break; + return; } // IRQs diff --git a/sys/include/elf.h b/sys/include/elf.h new file mode 100644 index 0000000..be0eb13 --- /dev/null +++ b/sys/include/elf.h @@ -0,0 +1,41 @@ +/*- + * Copyright (c) 2001 David E. O'Brien. + * 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: release/10.0.0/sys/sys/elf.h 174043 2007-11-28 21:54:46Z jb $ + */ + +/* + * This is a Solaris compatibility header + */ + +#ifndef _SYS_ELF_H_ +#define _SYS_ELF_H_ + +#include +#include +#include +#include + +#endif /* !_SYS_ELF_H_ */ diff --git a/sys/include/elf32.h b/sys/include/elf32.h new file mode 100644 index 0000000..3c46551 --- /dev/null +++ b/sys/include/elf32.h @@ -0,0 +1,245 @@ +/*- + * Copyright (c) 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 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: release/10.0.0/sys/sys/elf32.h 163457 2006-10-17 05:43:30Z jkoshy $ + */ + +#ifndef _SYS_ELF32_H_ +#define _SYS_ELF32_H_ 1 + +#include + +/* + * ELF definitions common to all 32-bit architectures. + */ + +typedef uint32_t Elf32_Addr; +typedef uint16_t Elf32_Half; +typedef uint32_t Elf32_Off; +typedef int32_t Elf32_Sword; +typedef uint32_t Elf32_Word; +typedef uint64_t Elf32_Lword; + +typedef Elf32_Word Elf32_Hashelt; + +/* Non-standard class-dependent datatype used for abstraction. */ +typedef Elf32_Word Elf32_Size; +typedef Elf32_Sword Elf32_Ssize; + +/* + * ELF header. + */ + +typedef struct { + unsigned char e_ident[EI_NIDENT]; /* File identification. */ + Elf32_Half e_type; /* File type. */ + Elf32_Half e_machine; /* Machine architecture. */ + Elf32_Word e_version; /* ELF format version. */ + Elf32_Addr e_entry; /* Entry point. */ + Elf32_Off e_phoff; /* Program header file offset. */ + Elf32_Off e_shoff; /* Section header file offset. */ + Elf32_Word e_flags; /* Architecture-specific flags. */ + Elf32_Half e_ehsize; /* Size of ELF header in bytes. */ + Elf32_Half e_phentsize; /* Size of program header entry. */ + Elf32_Half e_phnum; /* Number of program header entries. */ + Elf32_Half e_shentsize; /* Size of section header entry. */ + Elf32_Half e_shnum; /* Number of section header entries. */ + Elf32_Half e_shstrndx; /* Section name strings section. */ +} Elf32_Ehdr; + +/* + * Section header. + */ + +typedef struct { + Elf32_Word sh_name; /* Section name (index into the + section header string table). */ + Elf32_Word sh_type; /* Section type. */ + Elf32_Word sh_flags; /* Section flags. */ + Elf32_Addr sh_addr; /* Address in memory image. */ + Elf32_Off sh_offset; /* Offset in file. */ + Elf32_Word sh_size; /* Size in bytes. */ + Elf32_Word sh_link; /* Index of a related section. */ + Elf32_Word sh_info; /* Depends on section type. */ + Elf32_Word sh_addralign; /* Alignment in bytes. */ + Elf32_Word sh_entsize; /* Size of each entry in section. */ +} Elf32_Shdr; + +/* + * Program header. + */ + +typedef struct { + Elf32_Word p_type; /* Entry type. */ + Elf32_Off p_offset; /* File offset of contents. */ + Elf32_Addr p_vaddr; /* Virtual address in memory image. */ + Elf32_Addr p_paddr; /* Physical address (not used). */ + Elf32_Word p_filesz; /* Size of contents in file. */ + Elf32_Word p_memsz; /* Size of contents in memory. */ + Elf32_Word p_flags; /* Access permission flags. */ + Elf32_Word p_align; /* Alignment in memory and file. */ +} Elf32_Phdr; + +/* + * Dynamic structure. The ".dynamic" section contains an array of them. + */ + +typedef struct { + Elf32_Sword d_tag; /* Entry type. */ + union { + Elf32_Word d_val; /* Integer value. */ + Elf32_Addr d_ptr; /* Address value. */ + } d_un; +} Elf32_Dyn; + +/* + * Relocation entries. + */ + +/* Relocations that don't need an addend field. */ +typedef struct { + Elf32_Addr r_offset; /* Location to be relocated. */ + Elf32_Word r_info; /* Relocation type and symbol index. */ +} Elf32_Rel; + +/* Relocations that need an addend field. */ +typedef struct { + Elf32_Addr r_offset; /* Location to be relocated. */ + Elf32_Word r_info; /* Relocation type and symbol index. */ + Elf32_Sword r_addend; /* Addend. */ +} Elf32_Rela; + +/* Macros for accessing the fields of r_info. */ +#define ELF32_R_SYM(info) ((info) >> 8) +#define ELF32_R_TYPE(info) ((unsigned char)(info)) + +/* Macro for constructing r_info from field values. */ +#define ELF32_R_INFO(sym, type) (((sym) << 8) + (unsigned char)(type)) + +/* + * Note entry header + */ +typedef Elf_Note Elf32_Nhdr; + +/* + * Move entry + */ +typedef struct { + Elf32_Lword m_value; /* symbol value */ + Elf32_Word m_info; /* size + index */ + Elf32_Word m_poffset; /* symbol offset */ + Elf32_Half m_repeat; /* repeat count */ + Elf32_Half m_stride; /* stride info */ +} Elf32_Move; + +/* + * The macros compose and decompose values for Move.r_info + * + * sym = ELF32_M_SYM(M.m_info) + * size = ELF32_M_SIZE(M.m_info) + * M.m_info = ELF32_M_INFO(sym, size) + */ +#define ELF32_M_SYM(info) ((info)>>8) +#define ELF32_M_SIZE(info) ((unsigned char)(info)) +#define ELF32_M_INFO(sym, size) (((sym)<<8)+(unsigned char)(size)) + +/* + * Hardware/Software capabilities entry + */ +typedef struct { + Elf32_Word c_tag; /* how to interpret value */ + union { + Elf32_Word c_val; + Elf32_Addr c_ptr; + } c_un; +} Elf32_Cap; + +/* + * Symbol table entries. + */ + +typedef struct { + Elf32_Word st_name; /* String table index of name. */ + Elf32_Addr st_value; /* Symbol value. */ + Elf32_Word st_size; /* Size of associated object. */ + unsigned char st_info; /* Type and binding information. */ + unsigned char st_other; /* Reserved (not used). */ + Elf32_Half st_shndx; /* Section index of symbol. */ +} Elf32_Sym; + +/* Macros for accessing the fields of st_info. */ +#define ELF32_ST_BIND(info) ((info) >> 4) +#define ELF32_ST_TYPE(info) ((info) & 0xf) + +/* Macro for constructing st_info from field values. */ +#define ELF32_ST_INFO(bind, type) (((bind) << 4) + ((type) & 0xf)) + +/* Macro for accessing the fields of st_other. */ +#define ELF32_ST_VISIBILITY(oth) ((oth) & 0x3) + +/* Structures used by Sun & GNU symbol versioning. */ +typedef struct +{ + Elf32_Half vd_version; + Elf32_Half vd_flags; + Elf32_Half vd_ndx; + Elf32_Half vd_cnt; + Elf32_Word vd_hash; + Elf32_Word vd_aux; + Elf32_Word vd_next; +} Elf32_Verdef; + +typedef struct +{ + Elf32_Word vda_name; + Elf32_Word vda_next; +} Elf32_Verdaux; + +typedef struct +{ + Elf32_Half vn_version; + Elf32_Half vn_cnt; + Elf32_Word vn_file; + Elf32_Word vn_aux; + Elf32_Word vn_next; +} Elf32_Verneed; + +typedef struct +{ + Elf32_Word vna_hash; + Elf32_Half vna_flags; + Elf32_Half vna_other; + Elf32_Word vna_name; + Elf32_Word vna_next; +} Elf32_Vernaux; + +typedef Elf32_Half Elf32_Versym; + +typedef struct { + Elf32_Half si_boundto; /* direct bindings - symbol bound to */ + Elf32_Half si_flags; /* per symbol flags */ +} Elf32_Syminfo; + +#endif /* !_SYS_ELF32_H_ */ diff --git a/sys/include/elf64.h b/sys/include/elf64.h new file mode 100644 index 0000000..a58ba93 --- /dev/null +++ b/sys/include/elf64.h @@ -0,0 +1,248 @@ +/*- + * Copyright (c) 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 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: release/10.0.0/sys/sys/elf64.h 186667 2009-01-01 02:08:56Z obrien $ + */ + +#ifndef _SYS_ELF64_H_ +#define _SYS_ELF64_H_ 1 + +#include + +/* + * ELF definitions common to all 64-bit architectures. + */ + +typedef uint64_t Elf64_Addr; +typedef uint16_t Elf64_Half; +typedef uint64_t Elf64_Off; +typedef int32_t Elf64_Sword; +typedef int64_t Elf64_Sxword; +typedef uint32_t Elf64_Word; +typedef uint64_t Elf64_Lword; +typedef uint64_t Elf64_Xword; + +/* + * Types of dynamic symbol hash table bucket and chain elements. + * + * This is inconsistent among 64 bit architectures, so a machine dependent + * typedef is required. + */ + +typedef Elf64_Word Elf64_Hashelt; + +/* Non-standard class-dependent datatype used for abstraction. */ +typedef Elf64_Xword Elf64_Size; +typedef Elf64_Sxword Elf64_Ssize; + +/* + * ELF header. + */ + +typedef struct { + unsigned char e_ident[EI_NIDENT]; /* File identification. */ + Elf64_Half e_type; /* File type. */ + Elf64_Half e_machine; /* Machine architecture. */ + Elf64_Word e_version; /* ELF format version. */ + Elf64_Addr e_entry; /* Entry point. */ + Elf64_Off e_phoff; /* Program header file offset. */ + Elf64_Off e_shoff; /* Section header file offset. */ + Elf64_Word e_flags; /* Architecture-specific flags. */ + Elf64_Half e_ehsize; /* Size of ELF header in bytes. */ + Elf64_Half e_phentsize; /* Size of program header entry. */ + Elf64_Half e_phnum; /* Number of program header entries. */ + Elf64_Half e_shentsize; /* Size of section header entry. */ + Elf64_Half e_shnum; /* Number of section header entries. */ + Elf64_Half e_shstrndx; /* Section name strings section. */ +} Elf64_Ehdr; + +/* + * Section header. + */ + +typedef struct { + Elf64_Word sh_name; /* Section name (index into the + section header string table). */ + Elf64_Word sh_type; /* Section type. */ + Elf64_Xword sh_flags; /* Section flags. */ + Elf64_Addr sh_addr; /* Address in memory image. */ + Elf64_Off sh_offset; /* Offset in file. */ + Elf64_Xword sh_size; /* Size in bytes. */ + Elf64_Word sh_link; /* Index of a related section. */ + Elf64_Word sh_info; /* Depends on section type. */ + Elf64_Xword sh_addralign; /* Alignment in bytes. */ + Elf64_Xword sh_entsize; /* Size of each entry in section. */ +} Elf64_Shdr; + +/* + * Program header. + */ + +typedef struct { + Elf64_Word p_type; /* Entry type. */ + Elf64_Word p_flags; /* Access permission flags. */ + Elf64_Off p_offset; /* File offset of contents. */ + Elf64_Addr p_vaddr; /* Virtual address in memory image. */ + Elf64_Addr p_paddr; /* Physical address (not used). */ + Elf64_Xword p_filesz; /* Size of contents in file. */ + Elf64_Xword p_memsz; /* Size of contents in memory. */ + Elf64_Xword p_align; /* Alignment in memory and file. */ +} Elf64_Phdr; + +/* + * Dynamic structure. The ".dynamic" section contains an array of them. + */ + +typedef struct { + Elf64_Sxword d_tag; /* Entry type. */ + union { + Elf64_Xword d_val; /* Integer value. */ + Elf64_Addr d_ptr; /* Address value. */ + } d_un; +} Elf64_Dyn; + +/* + * Relocation entries. + */ + +/* Relocations that don't need an addend field. */ +typedef struct { + Elf64_Addr r_offset; /* Location to be relocated. */ + Elf64_Xword r_info; /* Relocation type and symbol index. */ +} Elf64_Rel; + +/* Relocations that need an addend field. */ +typedef struct { + Elf64_Addr r_offset; /* Location to be relocated. */ + Elf64_Xword r_info; /* Relocation type and symbol index. */ + Elf64_Sxword r_addend; /* Addend. */ +} Elf64_Rela; + +/* Macros for accessing the fields of r_info. */ +#define ELF64_R_SYM(info) ((info) >> 32) +#define ELF64_R_TYPE(info) ((info) & 0xffffffffL) + +/* Macro for constructing r_info from field values. */ +#define ELF64_R_INFO(sym, type) (((sym) << 32) + ((type) & 0xffffffffL)) + +#define ELF64_R_TYPE_DATA(info) (((Elf64_Xword)(info)<<32)>>40) +#define ELF64_R_TYPE_ID(info) (((Elf64_Xword)(info)<<56)>>56) +#define ELF64_R_TYPE_INFO(data, type) \ + (((Elf64_Xword)(data)<<8)+(Elf64_Xword)(type)) + +/* + * Note entry header + */ +typedef Elf_Note Elf64_Nhdr; + +/* + * Move entry + */ +typedef struct { + Elf64_Lword m_value; /* symbol value */ + Elf64_Xword m_info; /* size + index */ + Elf64_Xword m_poffset; /* symbol offset */ + Elf64_Half m_repeat; /* repeat count */ + Elf64_Half m_stride; /* stride info */ +} Elf64_Move; + +#define ELF64_M_SYM(info) ((info)>>8) +#define ELF64_M_SIZE(info) ((unsigned char)(info)) +#define ELF64_M_INFO(sym, size) (((sym)<<8)+(unsigned char)(size)) + +/* + * Hardware/Software capabilities entry + */ +typedef struct { + Elf64_Xword c_tag; /* how to interpret value */ + union { + Elf64_Xword c_val; + Elf64_Addr c_ptr; + } c_un; +} Elf64_Cap; + +/* + * Symbol table entries. + */ + +typedef struct { + Elf64_Word st_name; /* String table index of name. */ + unsigned char st_info; /* Type and binding information. */ + unsigned char st_other; /* Reserved (not used). */ + Elf64_Half st_shndx; /* Section index of symbol. */ + Elf64_Addr st_value; /* Symbol value. */ + Elf64_Xword st_size; /* Size of associated object. */ +} Elf64_Sym; + +/* Macros for accessing the fields of st_info. */ +#define ELF64_ST_BIND(info) ((info) >> 4) +#define ELF64_ST_TYPE(info) ((info) & 0xf) + +/* Macro for constructing st_info from field values. */ +#define ELF64_ST_INFO(bind, type) (((bind) << 4) + ((type) & 0xf)) + +/* Macro for accessing the fields of st_other. */ +#define ELF64_ST_VISIBILITY(oth) ((oth) & 0x3) + +/* Structures used by Sun & GNU-style symbol versioning. */ +typedef struct { + Elf64_Half vd_version; + Elf64_Half vd_flags; + Elf64_Half vd_ndx; + Elf64_Half vd_cnt; + Elf64_Word vd_hash; + Elf64_Word vd_aux; + Elf64_Word vd_next; +} Elf64_Verdef; + +typedef struct { + Elf64_Word vda_name; + Elf64_Word vda_next; +} Elf64_Verdaux; + +typedef struct { + Elf64_Half vn_version; + Elf64_Half vn_cnt; + Elf64_Word vn_file; + Elf64_Word vn_aux; + Elf64_Word vn_next; +} Elf64_Verneed; + +typedef struct { + Elf64_Word vna_hash; + Elf64_Half vna_flags; + Elf64_Half vna_other; + Elf64_Word vna_name; + Elf64_Word vna_next; +} Elf64_Vernaux; + +typedef Elf64_Half Elf64_Versym; + +typedef struct { + Elf64_Half si_boundto; /* direct bindings - symbol bound to */ + Elf64_Half si_flags; /* per symbol flags */ +} Elf64_Syminfo; + +#endif /* !_SYS_ELF64_H_ */ diff --git a/sys/include/elf_common.h b/sys/include/elf_common.h new file mode 100644 index 0000000..c9292e2 --- /dev/null +++ b/sys/include/elf_common.h @@ -0,0 +1,994 @@ +/*- + * 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: release/10.0.0/sys/sys/elf_common.h 256100 2013-10-07 08:14:58Z kib $ + */ + +#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 { + uint32_t n_namesz; /* Length of name. */ + uint32_t n_descsz; /* Length of descriptor. */ + uint32_t n_type; /* Type of this note. */ +} Elf_Note; + +/* + * The header for GNU-style hash sections. + */ + +typedef struct { + uint32_t gh_nbuckets; /* Number of hash buckets. */ + uint32_t gh_symndx; /* First visible symbol in .dynsym. */ + uint32_t gh_maskwords; /* #maskwords used in bloom filter. */ + uint32_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_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 */ + +/* 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_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 */ + +/* 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) */ + +/* 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_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_SUNW_SIGNATURE 0x6ffffff6 +#define SHT_GNU_HASH 0x6ffffff6 +#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_AMD64_UNWIND 0x70000001 /* unwind information */ +#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_REGINFO 0x70000006 +#define SHT_MIPS_OPTIONS 0x7000000d +#define SHT_MIPS_DWARF 0x7000001e /* MIPS gcc uses MIPS_DWARF */ +#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_MASKOS 0x0ff00000 /* OS-specific semantics. */ +#define SHF_MASKPROC 0xf0000000 /* Processor-specific semantics. */ + +/* 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_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_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_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_1 0x6ffffdfc /* feature holder */ +#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_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_DEPRECATED_SPARC_REGISTER 0x7000001 +#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 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. */ + +/* 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 /* Reserved range for operating system */ +#define STB_HIOS 12 /* specific semantics. */ +#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 /* reserved range for processor */ +#define STT_HIPROC 15 /* specific semantics. */ + +/* 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 + +/* + * 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_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_GOTHI16 21 /* GOT HI 16 bit */ +#define R_MIPS_GOTLO16 22 /* GOT LO 16 bit */ +#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_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 + +#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_IRELATIVE 37 + + +#endif /* !_SYS_ELF_COMMON_H_ */ diff --git a/sys/include/elf_generic.h b/sys/include/elf_generic.h new file mode 100644 index 0000000..12e537a --- /dev/null +++ b/sys/include/elf_generic.h @@ -0,0 +1,88 @@ +/*- + * 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: release/10.0.0/sys/sys/elf_generic.h 186667 2009-01-01 02:08:56Z obrien $ + */ + +#ifndef _SYS_ELF_GENERIC_H_ +#define _SYS_ELF_GENERIC_H_ 1 + +#include + +/* + * Definitions of generic ELF names which relieve applications from + * needing to know the word size. + */ + +#if __ELF_WORD_SIZE != 32 && __ELF_WORD_SIZE != 64 +#error "__ELF_WORD_SIZE must be defined as 32 or 64" +#endif + +#define ELF_CLASS __CONCAT(ELFCLASS,__ELF_WORD_SIZE) + +#if BYTE_ORDER == LITTLE_ENDIAN +#define ELF_DATA ELFDATA2LSB +#elif BYTE_ORDER == BIG_ENDIAN +#define ELF_DATA ELFDATA2MSB +#else +#error "Unknown byte order" +#endif + +#define __elfN(x) __CONCAT(__CONCAT(__CONCAT(elf,__ELF_WORD_SIZE),_),x) +#define __ElfN(x) __CONCAT(__CONCAT(__CONCAT(Elf,__ELF_WORD_SIZE),_),x) +#define __ELFN(x) __CONCAT(__CONCAT(__CONCAT(ELF,__ELF_WORD_SIZE),_),x) +#define __ElfType(x) typedef __ElfN(x) __CONCAT(Elf_,x) + +__ElfType(Addr); +__ElfType(Half); +__ElfType(Off); +__ElfType(Sword); +__ElfType(Word); +__ElfType(Ehdr); +__ElfType(Shdr); +__ElfType(Phdr); +__ElfType(Dyn); +__ElfType(Rel); +__ElfType(Rela); +__ElfType(Sym); +__ElfType(Verdef); +__ElfType(Verdaux); +__ElfType(Verneed); +__ElfType(Vernaux); +__ElfType(Versym); + +/* Non-standard ELF types. */ +__ElfType(Hashelt); +__ElfType(Size); +__ElfType(Ssize); + +#define ELF_R_SYM __ELFN(R_SYM) +#define ELF_R_TYPE __ELFN(R_TYPE) +#define ELF_R_INFO __ELFN(R_INFO) +#define ELF_ST_BIND __ELFN(ST_BIND) +#define ELF_ST_TYPE __ELFN(ST_TYPE) +#define ELF_ST_INFO __ELFN(ST_INFO) + +#endif /* !_SYS_ELF_GENERIC_H_ */ diff --git a/sys/include/kmem.h b/sys/include/kmem.h index efecc43..f5a662b 100644 --- a/sys/include/kmem.h +++ b/sys/include/kmem.h @@ -2,6 +2,13 @@ #ifndef __KMEM_H__ #define __KMEM_H__ +typedef struct Page { + uint32_t refcount; // Number of references + uint32_t pincount; // Pin count (HW, Software) + uint32_t flags; // Flags + uint32_t _unused; +} Page; + /* * Page Allocator */ diff --git a/sys/include/thread.h b/sys/include/thread.h index fcc71ed..e9d2c4d 100644 --- a/sys/include/thread.h +++ b/sys/include/thread.h @@ -31,6 +31,7 @@ typedef struct Thread { } Thread; void Thread_Init(); +Thread *Thread_Current(); Thread *Thread_Create(); Thread *Thread_KThreadCreate(void (*f)(void*), void *arg); void Thread_SetRunnable(Thread *thr); diff --git a/sys/kern/loader.c b/sys/kern/loader.c new file mode 100644 index 0000000..1345e0d --- /dev/null +++ b/sys/kern/loader.c @@ -0,0 +1,111 @@ + +#include +#include +#include + +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +bool +Loader_CheckHeader(const Elf64_Ehdr *ehdr) +{ + if (ehdr->e_ident[EI_MAG0] != ELFMAG0 || + ehdr->e_ident[EI_MAG1] != ELFMAG1 || + ehdr->e_ident[EI_MAG2] != ELFMAG2 || + ehdr->e_ident[EI_MAG3] != ELFMAG3) + return false; + + if (ehdr->e_ident[EI_CLASS] != ELFCLASS64) { + return false; + } + + if (ehdr->e_machine != EM_AMD64) { + return false; + } + + return true; +} + +bool +Loader_Load(Thread *thr, void *buf, uint64_t len) +{ + int i; + const Elf64_Ehdr *ehdr; + const Elf64_Phdr *phdr; + + ehdr = (const Elf64_Ehdr *)buf; + phdr = (const Elf64_Phdr *)(buf + ehdr->e_phoff); + + if (!Loader_CheckHeader(ehdr)) { + kprintf("Not a valid executable!\n"); + return false; + } + + + kprintf("%8s %16s %8s %8s\n", "Offset", "VAddr", "FileSize", "MemSize"); + for (i = 0; i < ehdr->e_phnum; i++) + { + kprintf("%08llx %016llx %08llx %08llx\n", phdr[i].p_offset, + phdr[i].p_vaddr, phdr[i].p_filesz, phdr[i].p_memsz); + } + + AS *as = thr->space; + void *stack = PAlloc_AllocPage(); + PMap_Map(as, (uint64_t)DMVA2PA(stack), 0x70000000, 1, 0); + PMap_Map(as, (uint64_t)DMVA2PA(buf), phdr[0].p_vaddr, 1, 0); + PMap_LoadAS(as); // Reload CR3 + //PMap_Dump(as); + + TrapFrame tf; + memset(&tf, 0, sizeof(tf)); + tf.rip = ehdr->e_entry; + tf.cs = SEL_UCS | 3; + tf.rsp = 0x70000000 + PGSIZE; + tf.ss = SEL_UDS | 3; + tf.rflags = RFLAGS_IF; + Trap_Dump(&tf); + Trap_Pop(&tf); + + return true; +} + +void +Loader_LoadInit() +{ + int status; + void *pg; + Disk *disk; + SGArray sga; + + pg = PAlloc_AllocPage(); + if (!pg) + Panic("Not enough memory!"); + + disk = Disk_GetByID(0, 0); + if (!disk) { + kprintf("Cannot find root disk\n"); + return; + } + + sga.len = 1; + sga.entries[0].offset = 0; + sga.entries[0].length = 1024; + + status = Disk_Read(disk, pg, &sga, NULL, NULL); + if (status < 0) { + kprintf("Error reading init process\n"); + return; + } + + Thread *thr = Thread_Current(); + Loader_Load(thr, pg, 1024); +} + diff --git a/sys/kern/thread.c b/sys/kern/thread.c index 6a7a6f8..262e346 100644 --- a/sys/kern/thread.c +++ b/sys/kern/thread.c @@ -29,6 +29,12 @@ Thread_Init() TAILQ_INIT(&threadQueue); } +Thread * +Thread_Current() +{ + return curProc; +} + Thread * Thread_Create() {