From 6d1159d25f171beeb80da31c719e4276e35c06a1 Mon Sep 17 00:00:00 2001 In-Reply-To: <1383928417-38009-1-git-send-email-sson@FreeBSD.org> References: <1383928417-38009-1-git-send-email-sson@FreeBSD.org> From: Stacey Son Date: Mon, 7 Oct 2013 08:38:16 -0500 Subject: [PATCH v3 08/19] bsd-user: move arch/OS dependent code out of elfload.c This change moves ELF and thread start up code from elfload.c to the host OS and arch dependent directories. This eliminates many of the #ifdef's in elfload.c and moves the target arch and OS dependent code into its own directories. --- bsd-user/arm/target_arch_elf.h | 54 ++ bsd-user/arm/target_arch_thread.h | 67 +++ bsd-user/elfload.c | 947 +++++++-------------------------- bsd-user/freebsd/target_os_elf.h | 145 +++++ bsd-user/freebsd/target_os_thread.h | 6 + bsd-user/i386/target_arch_elf.h | 62 +++ bsd-user/i386/target_arch_thread.h | 45 ++ bsd-user/mips/target_arch_elf.h | 36 ++ bsd-user/mips/target_arch_thread.h | 54 ++ bsd-user/mips64/target_arch_elf.h | 36 ++ bsd-user/mips64/target_arch_thread.h | 54 ++ bsd-user/netbsd/target_os_elf.h | 226 ++++++++ bsd-user/netbsd/target_os_thread.h | 6 + bsd-user/openbsd/target_os_elf.h | 226 ++++++++ bsd-user/openbsd/target_os_thread.h | 6 + bsd-user/sparc/target_arch_elf.h | 30 + bsd-user/sparc/target_arch_thread.h | 39 ++ bsd-user/sparc64/target_arch_elf.h | 34 ++ bsd-user/sparc64/target_arch_thread.h | 55 ++ bsd-user/syscall_defs.h | 64 +++ bsd-user/x86_64/target_arch_elf.h | 55 ++ bsd-user/x86_64/target_arch_thread.h | 40 ++ 22 files changed, 1530 insertions(+), 757 deletions(-) create mode 100644 bsd-user/arm/target_arch_elf.h create mode 100644 bsd-user/arm/target_arch_thread.h create mode 100644 bsd-user/freebsd/target_os_elf.h create mode 100644 bsd-user/freebsd/target_os_thread.h create mode 100644 bsd-user/i386/target_arch_elf.h create mode 100644 bsd-user/i386/target_arch_thread.h create mode 100644 bsd-user/mips/target_arch_elf.h create mode 100644 bsd-user/mips/target_arch_thread.h create mode 100644 bsd-user/mips64/target_arch_elf.h create mode 100644 bsd-user/mips64/target_arch_thread.h create mode 100644 bsd-user/netbsd/target_os_elf.h create mode 100644 bsd-user/netbsd/target_os_thread.h create mode 100644 bsd-user/openbsd/target_os_elf.h create mode 100644 bsd-user/openbsd/target_os_thread.h create mode 100644 bsd-user/sparc/target_arch_elf.h create mode 100644 bsd-user/sparc/target_arch_thread.h create mode 100644 bsd-user/sparc64/target_arch_elf.h create mode 100644 bsd-user/sparc64/target_arch_thread.h create mode 100644 bsd-user/x86_64/target_arch_elf.h create mode 100644 bsd-user/x86_64/target_arch_thread.h diff --git a/bsd-user/arm/target_arch_elf.h b/bsd-user/arm/target_arch_elf.h new file mode 100644 index 0000000..c408cea --- /dev/null +++ b/bsd-user/arm/target_arch_elf.h @@ -0,0 +1,54 @@ +/* + * arm ELF definitions + * + * Copyright (c) 2013 Stacey D. Son + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see . + */ +#ifndef _TARGET_ARCH_ELF_H_ +#define _TARGET_ARCH_ELF_H_ + +#define ELF_START_MMAP 0x80000000 + +#define elf_check_arch(x) ( (x) == EM_ARM ) + +#define ELF_CLASS ELFCLASS32 +#ifdef TARGET_WORDS_BIGENDIAN +#define ELF_DATA ELFDATA2MSB +#else +#define ELF_DATA ELFDATA2LSB +#endif +#define ELF_ARCH EM_ARM + +#define USE_ELF_CORE_DUMP +#define ELF_EXEC_PAGESIZE 4096 + +enum +{ + ARM_HWCAP_ARM_SWP = 1 << 0, + ARM_HWCAP_ARM_HALF = 1 << 1, + ARM_HWCAP_ARM_THUMB = 1 << 2, + ARM_HWCAP_ARM_26BIT = 1 << 3, + ARM_HWCAP_ARM_FAST_MULT = 1 << 4, + ARM_HWCAP_ARM_FPA = 1 << 5, + ARM_HWCAP_ARM_VFP = 1 << 6, + ARM_HWCAP_ARM_EDSP = 1 << 7, +}; + +#define ELF_HWCAP (ARM_HWCAP_ARM_SWP | ARM_HWCAP_ARM_HALF \ + | ARM_HWCAP_ARM_THUMB | ARM_HWCAP_ARM_FAST_MULT \ + | ARM_HWCAP_ARM_FPA | ARM_HWCAP_ARM_VFP) + + +#endif /* _TARGET_ARCH_ELF_H_ */ diff --git a/bsd-user/arm/target_arch_thread.h b/bsd-user/arm/target_arch_thread.h new file mode 100644 index 0000000..e69f612 --- /dev/null +++ b/bsd-user/arm/target_arch_thread.h @@ -0,0 +1,67 @@ +/* + * arm thread support + * + * Copyright (c) 2013 Stacey D. Son + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see . + */ +#ifndef _TARGET_ARCH_THREAD_H_ +#define _TARGET_ARCH_THREAD_H_ + +/* Compare to arm/arm/vm_machdep.c cpu_set_upcall_kse() */ +static inline void target_thread_set_upcall(CPUARMState *regs, abi_ulong entry, + abi_ulong arg, abi_ulong stack_base, abi_ulong stack_size) +{ + abi_ulong sp; + + /* + * Make sure the stack is properly aligned. + * arm/include/param.h (STACKLIGN() macro) + */ + sp = ((u_int)(stack_base + stack_size) & ~(8-1)) - + sizeof(struct target_trapframe); + + /* sp = stack base */ + regs->regs[13] = sp; + /* pc = start function entry */ + regs->regs[15] = entry & 0xfffffffe; + /* r0 = arg */ + regs->regs[0] = arg; + regs->spsr = ARM_CPU_MODE_USR; +} + +static inline void target_thread_init(struct target_pt_regs *regs, + struct image_info *infop) +{ + abi_long stack = infop->start_stack; + memset(regs, 0, sizeof(*regs)); + regs->ARM_cpsr = 0x10; + if (infop->entry & 1) + regs->ARM_cpsr |= CPSR_T; + regs->ARM_pc = infop->entry & 0xfffffffe; + regs->ARM_sp = infop->start_stack; + if (bsd_type == target_freebsd) { + regs->ARM_lr = infop->entry & 0xfffffffe; + } + /* FIXME - what to for failure of get_user()? */ + get_user_ual(regs->ARM_r2, stack + 8); /* envp */ + get_user_ual(regs->ARM_r1, stack + 4); /* envp */ + /* XXX: it seems that r0 is zeroed after ! */ + regs->ARM_r0 = 0; + /* For uClinux PIC binaries. */ + /* XXX: Linux does this only on ARM with no MMU (do we care ?) */ + regs->ARM_r10 = infop->start_data; +} + +#endif /* !_TARGET_ARCH_THREAD_H_ */ diff --git a/bsd-user/elfload.c b/bsd-user/elfload.c index 68d0209..ef96b8c 100644 --- a/bsd-user/elfload.c +++ b/bsd-user/elfload.c @@ -1,4 +1,20 @@ -/* This is the Linux kernel elf-loading code, ported into user space */ +/* + * ELF loading code + * + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see . + */ #include #include @@ -11,548 +27,13 @@ #include "qemu.h" #include "disas/disas.h" - -#ifdef _ARCH_PPC64 -#undef ARCH_DLINFO -#undef ELF_PLATFORM -#undef ELF_HWCAP -#undef ELF_CLASS -#undef ELF_DATA -#undef ELF_ARCH -#endif - -/* from personality.h */ - -/* - * Flags for bug emulation. - * - * These occupy the top three bytes. - */ -enum { - ADDR_NO_RANDOMIZE = 0x0040000, /* disable randomization of VA space */ - FDPIC_FUNCPTRS = 0x0080000, /* userspace function ptrs point to descriptors - * (signal handling) - */ - MMAP_PAGE_ZERO = 0x0100000, - ADDR_COMPAT_LAYOUT = 0x0200000, - READ_IMPLIES_EXEC = 0x0400000, - ADDR_LIMIT_32BIT = 0x0800000, - SHORT_INODE = 0x1000000, - WHOLE_SECONDS = 0x2000000, - STICKY_TIMEOUTS = 0x4000000, - ADDR_LIMIT_3GB = 0x8000000, -}; - -/* - * Personality types. - * - * These go in the low byte. Avoid using the top bit, it will - * conflict with error returns. - */ -enum { - PER_LINUX = 0x0000, - PER_LINUX_32BIT = 0x0000 | ADDR_LIMIT_32BIT, - PER_LINUX_FDPIC = 0x0000 | FDPIC_FUNCPTRS, - PER_SVR4 = 0x0001 | STICKY_TIMEOUTS | MMAP_PAGE_ZERO, - PER_SVR3 = 0x0002 | STICKY_TIMEOUTS | SHORT_INODE, - PER_SCOSVR3 = 0x0003 | STICKY_TIMEOUTS | - WHOLE_SECONDS | SHORT_INODE, - PER_OSR5 = 0x0003 | STICKY_TIMEOUTS | WHOLE_SECONDS, - PER_WYSEV386 = 0x0004 | STICKY_TIMEOUTS | SHORT_INODE, - PER_ISCR4 = 0x0005 | STICKY_TIMEOUTS, - PER_BSD = 0x0006, - PER_SUNOS = 0x0006 | STICKY_TIMEOUTS, - PER_XENIX = 0x0007 | STICKY_TIMEOUTS | SHORT_INODE, - PER_LINUX32 = 0x0008, - PER_LINUX32_3GB = 0x0008 | ADDR_LIMIT_3GB, - PER_IRIX32 = 0x0009 | STICKY_TIMEOUTS,/* IRIX5 32-bit */ - PER_IRIXN32 = 0x000a | STICKY_TIMEOUTS,/* IRIX6 new 32-bit */ - PER_IRIX64 = 0x000b | STICKY_TIMEOUTS,/* IRIX6 64-bit */ - PER_RISCOS = 0x000c, - PER_SOLARIS = 0x000d | STICKY_TIMEOUTS, - PER_UW7 = 0x000e | STICKY_TIMEOUTS | MMAP_PAGE_ZERO, - PER_OSF4 = 0x000f, /* OSF/1 v4 */ - PER_HPUX = 0x0010, - PER_MASK = 0x00ff, -}; - -/* - * Return the base personality without flags. - */ -#define personality(pers) (pers & PER_MASK) - -/* this flag is uneffective under linux too, should be deleted */ -#ifndef MAP_DENYWRITE -#define MAP_DENYWRITE 0 -#endif - -/* should probably go in elf.h */ -#ifndef ELIBBAD -#define ELIBBAD 80 -#endif +#include "target_os_elf.h" +#include "target_os_stack.h" +#include "target_os_thread.h" abi_ulong target_stksiz; abi_ulong target_stkbas; -#ifdef TARGET_I386 - -#define ELF_PLATFORM get_elf_platform() - -static const char *get_elf_platform(void) -{ - static char elf_platform[] = "i386"; - int family = object_property_get_int(OBJECT(thread_cpu), "family", NULL); - if (family > 6) - family = 6; - if (family >= 3) - elf_platform[1] = '0' + family; - return elf_platform; -} - -#define ELF_HWCAP get_elf_hwcap() - -static uint32_t get_elf_hwcap(void) -{ - X86CPU *cpu = X86_CPU(thread_cpu); - - return cpu->env.features[FEAT_1_EDX]; -} - -#ifdef TARGET_X86_64 -#define ELF_START_MMAP 0x2aaaaab000ULL -#define elf_check_arch(x) ( ((x) == ELF_ARCH) ) - -#define ELF_CLASS ELFCLASS64 -#define ELF_DATA ELFDATA2LSB -#define ELF_ARCH EM_X86_64 - -static inline void init_thread(struct target_pt_regs *regs, struct image_info *infop) -{ - regs->rax = 0; - regs->rsp = infop->start_stack; - regs->rip = infop->entry; - if (bsd_type == target_freebsd) { - regs->rdi = infop->start_stack; - } -} - -#else - -#define ELF_START_MMAP 0x80000000 - -/* - * This is used to ensure we don't load something for the wrong architecture. - */ -#define elf_check_arch(x) ( ((x) == EM_386) || ((x) == EM_486) ) - -/* - * These are used to set parameters in the core dumps. - */ -#define ELF_CLASS ELFCLASS32 -#define ELF_DATA ELFDATA2LSB -#define ELF_ARCH EM_386 - -static inline void init_thread(struct target_pt_regs *regs, struct image_info *infop) -{ - regs->esp = infop->start_stack; - regs->eip = infop->entry; - - /* SVR4/i386 ABI (pages 3-31, 3-32) says that when the program - starts %edx contains a pointer to a function which might be - registered using `atexit'. This provides a mean for the - dynamic linker to call DT_FINI functions for shared libraries - that have been loaded before the code runs. - - A value of 0 tells we have no such handler. */ - regs->edx = 0; -} -#endif - -#define USE_ELF_CORE_DUMP -#define ELF_EXEC_PAGESIZE 4096 - -#endif - -#ifdef TARGET_ARM - -#define ELF_START_MMAP 0x80000000 - -#define elf_check_arch(x) ( (x) == EM_ARM ) - -#define ELF_CLASS ELFCLASS32 -#ifdef TARGET_WORDS_BIGENDIAN -#define ELF_DATA ELFDATA2MSB -#else -#define ELF_DATA ELFDATA2LSB -#endif -#define ELF_ARCH EM_ARM - -static inline void init_thread(struct target_pt_regs *regs, struct image_info *infop) -{ - abi_long stack = infop->start_stack; - memset(regs, 0, sizeof(*regs)); - regs->ARM_cpsr = 0x10; - if (infop->entry & 1) - regs->ARM_cpsr |= CPSR_T; - regs->ARM_pc = infop->entry & 0xfffffffe; - regs->ARM_sp = infop->start_stack; - /* FIXME - what to for failure of get_user()? */ - get_user_ual(regs->ARM_r2, stack + 8); /* envp */ - get_user_ual(regs->ARM_r1, stack + 4); /* envp */ - /* XXX: it seems that r0 is zeroed after ! */ - regs->ARM_r0 = 0; - /* For uClinux PIC binaries. */ - /* XXX: Linux does this only on ARM with no MMU (do we care ?) */ - regs->ARM_r10 = infop->start_data; -} - -#define USE_ELF_CORE_DUMP -#define ELF_EXEC_PAGESIZE 4096 - -enum -{ - ARM_HWCAP_ARM_SWP = 1 << 0, - ARM_HWCAP_ARM_HALF = 1 << 1, - ARM_HWCAP_ARM_THUMB = 1 << 2, - ARM_HWCAP_ARM_26BIT = 1 << 3, - ARM_HWCAP_ARM_FAST_MULT = 1 << 4, - ARM_HWCAP_ARM_FPA = 1 << 5, - ARM_HWCAP_ARM_VFP = 1 << 6, - ARM_HWCAP_ARM_EDSP = 1 << 7, -}; - -#define ELF_HWCAP (ARM_HWCAP_ARM_SWP | ARM_HWCAP_ARM_HALF \ - | ARM_HWCAP_ARM_THUMB | ARM_HWCAP_ARM_FAST_MULT \ - | ARM_HWCAP_ARM_FPA | ARM_HWCAP_ARM_VFP) - -#endif - -#ifdef TARGET_SPARC -#ifdef TARGET_SPARC64 - -#define ELF_START_MMAP 0x80000000 - -#ifndef TARGET_ABI32 -#define elf_check_arch(x) ( (x) == EM_SPARCV9 || (x) == EM_SPARC32PLUS ) -#else -#define elf_check_arch(x) ( (x) == EM_SPARC32PLUS || (x) == EM_SPARC ) -#endif - -#define ELF_CLASS ELFCLASS64 -#define ELF_DATA ELFDATA2MSB -#define ELF_ARCH EM_SPARCV9 - -#define STACK_BIAS 2047 - -static inline void init_thread(struct target_pt_regs *regs, struct image_info *infop) -{ -#ifndef TARGET_ABI32 - regs->tstate = 0; -#endif - regs->pc = infop->entry; - regs->npc = regs->pc + 4; - regs->y = 0; -#ifdef TARGET_ABI32 - regs->u_regs[14] = infop->start_stack - 16 * 4; -#else - if (personality(infop->personality) == PER_LINUX32) - regs->u_regs[14] = infop->start_stack - 16 * 4; - else { - regs->u_regs[14] = infop->start_stack - 16 * 8 - STACK_BIAS; - if (bsd_type == target_freebsd) { - regs->u_regs[8] = infop->start_stack; - regs->u_regs[11] = infop->start_stack; - } - } -#endif -} - -#else -#define ELF_START_MMAP 0x80000000 - -#define elf_check_arch(x) ( (x) == EM_SPARC ) - -#define ELF_CLASS ELFCLASS32 -#define ELF_DATA ELFDATA2MSB -#define ELF_ARCH EM_SPARC - -static inline void init_thread(struct target_pt_regs *regs, struct image_info *infop) -{ - regs->psr = 0; - regs->pc = infop->entry; - regs->npc = regs->pc + 4; - regs->y = 0; - regs->u_regs[14] = infop->start_stack - 16 * 4; -} - -#endif -#endif - -#ifdef TARGET_PPC - -#define ELF_START_MMAP 0x80000000 - -#if defined(TARGET_PPC64) && !defined(TARGET_ABI32) - -#define elf_check_arch(x) ( (x) == EM_PPC64 ) - -#define ELF_CLASS ELFCLASS64 - -#else - -#define elf_check_arch(x) ( (x) == EM_PPC ) - -#define ELF_CLASS ELFCLASS32 - -#endif - -#ifdef TARGET_WORDS_BIGENDIAN -#define ELF_DATA ELFDATA2MSB -#else -#define ELF_DATA ELFDATA2LSB -#endif -#define ELF_ARCH EM_PPC - -/* - * We need to put in some extra aux table entries to tell glibc what - * the cache block size is, so it can use the dcbz instruction safely. - */ -#define AT_DCACHEBSIZE 19 -#define AT_ICACHEBSIZE 20 -#define AT_UCACHEBSIZE 21 -/* A special ignored type value for PPC, for glibc compatibility. */ -#define AT_IGNOREPPC 22 -/* - * The requirements here are: - * - keep the final alignment of sp (sp & 0xf) - * - make sure the 32-bit value at the first 16 byte aligned position of - * AUXV is greater than 16 for glibc compatibility. - * AT_IGNOREPPC is used for that. - * - for compatibility with glibc ARCH_DLINFO must always be defined on PPC, - * even if DLINFO_ARCH_ITEMS goes to zero or is undefined. - */ -#define DLINFO_ARCH_ITEMS 5 -#define ARCH_DLINFO \ -do { \ - NEW_AUX_ENT(AT_DCACHEBSIZE, 0x20); \ - NEW_AUX_ENT(AT_ICACHEBSIZE, 0x20); \ - NEW_AUX_ENT(AT_UCACHEBSIZE, 0); \ - /* \ - * Now handle glibc compatibility. \ - */ \ - NEW_AUX_ENT(AT_IGNOREPPC, AT_IGNOREPPC); \ - NEW_AUX_ENT(AT_IGNOREPPC, AT_IGNOREPPC); \ - } while (0) - -static inline void init_thread(struct target_pt_regs *_regs, struct image_info *infop) -{ - abi_ulong pos = infop->start_stack; - abi_ulong tmp; -#if defined(TARGET_PPC64) && !defined(TARGET_ABI32) - abi_ulong entry, toc; -#endif - - _regs->gpr[1] = infop->start_stack; -#if defined(TARGET_PPC64) && !defined(TARGET_ABI32) - entry = ldq_raw(infop->entry) + infop->load_addr; - toc = ldq_raw(infop->entry + 8) + infop->load_addr; - _regs->gpr[2] = toc; - infop->entry = entry; -#endif - _regs->nip = infop->entry; - /* Note that isn't exactly what regular kernel does - * but this is what the ABI wants and is needed to allow - * execution of PPC BSD programs. - */ - /* FIXME - what to for failure of get_user()? */ - get_user_ual(_regs->gpr[3], pos); - pos += sizeof(abi_ulong); - _regs->gpr[4] = pos; - for (tmp = 1; tmp != 0; pos += sizeof(abi_ulong)) - tmp = ldl(pos); - _regs->gpr[5] = pos; -} - -#define USE_ELF_CORE_DUMP -#define ELF_EXEC_PAGESIZE 4096 - -#endif - -#ifdef TARGET_MIPS - -#define ELF_START_MMAP 0x80000000 - -#define elf_check_arch(x) ( (x) == EM_MIPS ) - -#ifdef TARGET_MIPS64 -#define ELF_CLASS ELFCLASS64 -#else -#define ELF_CLASS ELFCLASS32 -#endif -#ifdef TARGET_WORDS_BIGENDIAN -#define ELF_DATA ELFDATA2MSB -#else -#define ELF_DATA ELFDATA2LSB -#endif -#define ELF_ARCH EM_MIPS - -static inline void init_thread(struct target_pt_regs *regs, struct image_info *infop) -{ - regs->cp0_status = 2 << CP0St_KSU; - regs->cp0_epc = infop->entry; - regs->regs[29] = infop->start_stack; -} - -#define USE_ELF_CORE_DUMP -#define ELF_EXEC_PAGESIZE 4096 - -#endif /* TARGET_MIPS */ - -#ifdef TARGET_SH4 - -#define ELF_START_MMAP 0x80000000 - -#define elf_check_arch(x) ( (x) == EM_SH ) - -#define ELF_CLASS ELFCLASS32 -#define ELF_DATA ELFDATA2LSB -#define ELF_ARCH EM_SH - -static inline void init_thread(struct target_pt_regs *regs, struct image_info *infop) -{ - /* Check other registers XXXXX */ - regs->pc = infop->entry; - regs->regs[15] = infop->start_stack; -} - -#define USE_ELF_CORE_DUMP -#define ELF_EXEC_PAGESIZE 4096 - -#endif - -#ifdef TARGET_CRIS - -#define ELF_START_MMAP 0x80000000 - -#define elf_check_arch(x) ( (x) == EM_CRIS ) - -#define ELF_CLASS ELFCLASS32 -#define ELF_DATA ELFDATA2LSB -#define ELF_ARCH EM_CRIS - -static inline void init_thread(struct target_pt_regs *regs, struct image_info *infop) -{ - regs->erp = infop->entry; -} - -#define USE_ELF_CORE_DUMP -#define ELF_EXEC_PAGESIZE 8192 - -#endif - -#ifdef TARGET_M68K - -#define ELF_START_MMAP 0x80000000 - -#define elf_check_arch(x) ( (x) == EM_68K ) - -#define ELF_CLASS ELFCLASS32 -#define ELF_DATA ELFDATA2MSB -#define ELF_ARCH EM_68K - -/* ??? Does this need to do anything? -#define ELF_PLAT_INIT(_r) */ - -static inline void init_thread(struct target_pt_regs *regs, struct image_info *infop) -{ - regs->usp = infop->start_stack; - regs->sr = 0; - regs->pc = infop->entry; -} - -#define USE_ELF_CORE_DUMP -#define ELF_EXEC_PAGESIZE 8192 - -#endif - -#ifdef TARGET_ALPHA - -#define ELF_START_MMAP (0x30000000000ULL) - -#define elf_check_arch(x) ( (x) == ELF_ARCH ) - -#define ELF_CLASS ELFCLASS64 -#define ELF_DATA ELFDATA2MSB -#define ELF_ARCH EM_ALPHA - -static inline void init_thread(struct target_pt_regs *regs, struct image_info *infop) -{ - regs->pc = infop->entry; - regs->ps = 8; - regs->usp = infop->start_stack; - regs->unique = infop->start_data; /* ? */ - printf("Set unique value to " TARGET_FMT_lx " (" TARGET_FMT_lx ")\n", - regs->unique, infop->start_data); -} - -#define USE_ELF_CORE_DUMP -#define ELF_EXEC_PAGESIZE 8192 - -#endif /* TARGET_ALPHA */ - -#ifndef ELF_PLATFORM -#define ELF_PLATFORM (NULL) -#endif - -#ifndef ELF_HWCAP -#define ELF_HWCAP 0 -#endif - -#ifdef TARGET_ABI32 -#undef ELF_CLASS -#define ELF_CLASS ELFCLASS32 -#undef bswaptls -#define bswaptls(ptr) bswap32s(ptr) -#endif - -#include "elf.h" - -struct exec -{ - unsigned int a_info; /* Use macros N_MAGIC, etc for access */ - unsigned int a_text; /* length of text, in bytes */ - unsigned int a_data; /* length of data, in bytes */ - unsigned int a_bss; /* length of uninitialized data area, in bytes */ - unsigned int a_syms; /* length of symbol table data in file, in bytes */ - unsigned int a_entry; /* start address */ - unsigned int a_trsize; /* length of relocation info for text, in bytes */ - unsigned int a_drsize; /* length of relocation info for data, in bytes */ -}; - - -#define N_MAGIC(exec) ((exec).a_info & 0xffff) -#define OMAGIC 0407 -#define NMAGIC 0410 -#define ZMAGIC 0413 -#define QMAGIC 0314 - -/* max code+data+bss space allocated to elf interpreter */ -#define INTERP_MAP_SIZE (32 * 1024 * 1024) - -/* max code+data+bss+brk space allocated to ET_DYN executables */ -#define ET_DYN_MAP_SIZE (128 * 1024 * 1024) - -/* Necessary parameters */ -#define TARGET_ELF_EXEC_PAGESIZE TARGET_PAGE_SIZE -#define TARGET_ELF_PAGESTART(_v) ((_v) & ~(unsigned long)(TARGET_ELF_EXEC_PAGESIZE-1)) -#define TARGET_ELF_PAGEOFFSET(_v) ((_v) & (TARGET_ELF_EXEC_PAGESIZE-1)) - -#define INTERPRETER_NONE 0 -#define INTERPRETER_AOUT 1 -#define INTERPRETER_ELF 2 - -#define DLINFO_ITEMS 12 - static inline void memcpy_fromfs(void * to, const void * from, unsigned long n) { memcpy(to, from, n); @@ -563,7 +44,7 @@ static int load_aout_interp(void * exptr, int interp_fd); #ifdef BSWAP_NEEDED static void bswap_ehdr(struct elfhdr *ehdr) { - bswap16s(&ehdr->e_type); /* Object file type */ + bswap16s(&ehdr->e_type); /* Object file type */ bswap16s(&ehdr->e_machine); /* Architecture */ bswap32s(&ehdr->e_version); /* Object file version */ bswaptls(&ehdr->e_entry); /* Entry point virtual address */ @@ -571,37 +52,45 @@ static void bswap_ehdr(struct elfhdr *ehdr) bswaptls(&ehdr->e_shoff); /* Section header table file offset */ bswap32s(&ehdr->e_flags); /* Processor-specific flags */ bswap16s(&ehdr->e_ehsize); /* ELF header size in bytes */ - bswap16s(&ehdr->e_phentsize); /* Program header table entry size */ + bswap16s(&ehdr->e_phentsize); /* Program header table entry size */ bswap16s(&ehdr->e_phnum); /* Program header table entry count */ - bswap16s(&ehdr->e_shentsize); /* Section header table entry size */ + bswap16s(&ehdr->e_shentsize); /* Section header table entry size */ bswap16s(&ehdr->e_shnum); /* Section header table entry count */ - bswap16s(&ehdr->e_shstrndx); /* Section header string table index */ + bswap16s(&ehdr->e_shstrndx); /* Section header string table index */ } -static void bswap_phdr(struct elf_phdr *phdr) +static void bswap_phdr(struct elf_phdr *phdr, int phnum) { - bswap32s(&phdr->p_type); /* Segment type */ - bswaptls(&phdr->p_offset); /* Segment file offset */ - bswaptls(&phdr->p_vaddr); /* Segment virtual address */ - bswaptls(&phdr->p_paddr); /* Segment physical address */ - bswaptls(&phdr->p_filesz); /* Segment size in file */ - bswaptls(&phdr->p_memsz); /* Segment size in memory */ - bswap32s(&phdr->p_flags); /* Segment flags */ - bswaptls(&phdr->p_align); /* Segment alignment */ + int i; + + for (i = 0; i < phnum; i++, phdr++) { + bswap32s(&phdr->p_type); /* Segment type */ + bswaptls(&phdr->p_offset); /* Segment file offset */ + bswaptls(&phdr->p_vaddr); /* Segment virtual address */ + bswaptls(&phdr->p_paddr); /* Segment physical address */ + bswaptls(&phdr->p_filesz); /* Segment size in file */ + bswaptls(&phdr->p_memsz); /* Segment size in memory */ + bswap32s(&phdr->p_flags); /* Segment flags */ + bswaptls(&phdr->p_align); /* Segment alignment */ + } } -static void bswap_shdr(struct elf_shdr *shdr) +static void bswap_shdr(struct elf_shdr *shdr, int shnum) { - bswap32s(&shdr->sh_name); - bswap32s(&shdr->sh_type); - bswaptls(&shdr->sh_flags); - bswaptls(&shdr->sh_addr); - bswaptls(&shdr->sh_offset); - bswaptls(&shdr->sh_size); - bswap32s(&shdr->sh_link); - bswap32s(&shdr->sh_info); - bswaptls(&shdr->sh_addralign); - bswaptls(&shdr->sh_entsize); + int i; + + for (i = 0; i < shnum; i++, shdr++) { + bswap32s(&shdr->sh_name); + bswap32s(&shdr->sh_type); + bswaptls(&shdr->sh_flags); + bswaptls(&shdr->sh_addr); + bswaptls(&shdr->sh_offset); + bswaptls(&shdr->sh_size); + bswap32s(&shdr->sh_link); + bswap32s(&shdr->sh_info); + bswaptls(&shdr->sh_addralign); + bswaptls(&shdr->sh_entsize); + } } static void bswap_sym(struct elf_sym *sym) @@ -611,7 +100,15 @@ static void bswap_sym(struct elf_sym *sym) bswaptls(&sym->st_size); bswap16s(&sym->st_shndx); } -#endif + +#else /* ! BSWAP_NEEDED */ + +static void bswap_ehdr(struct elfhdr *ehdr) { } +static void bswap_phdr(struct elf_phdr *phdr, int phnum) { } +static void bswap_shdr(struct elf_shdr *shdr, int shnum) { } +static void bswap_sym(struct elf_sym *sym) { } + +#endif /* ! BSWAP_NEEDED */ /* * 'copy_elf_strings()' copies argument/envelope strings from user @@ -671,39 +168,31 @@ static abi_ulong copy_elf_strings(int argc,char ** argv, void **page, static abi_ulong setup_arg_pages(abi_ulong p, struct bsd_binprm *bprm, struct image_info *info) { - abi_ulong stack_base, size, error; - int i; + abi_ulong stack_base, size; + abi_long addr; /* Create enough stack to hold everything. If we don't use * it for args, we'll use it for something else... */ size = target_dflssiz; - if (size < MAX_ARG_PAGES*TARGET_PAGE_SIZE) - size = MAX_ARG_PAGES*TARGET_PAGE_SIZE; - error = target_mmap(0, - size + qemu_host_page_size, - PROT_READ | PROT_WRITE, - MAP_PRIVATE | MAP_ANON, - -1, 0); - if (error == -1) { + stack_base = TARGET_USRSTACK - size; + addr = target_mmap(stack_base , size + qemu_host_page_size, + PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON, -1, 0); + if (addr == -1) { perror("stk mmap"); exit(-1); } /* we reserve one extra page at the top of the stack as guard */ - target_mprotect(error + size, qemu_host_page_size, PROT_NONE); + target_mprotect(addr + size, qemu_host_page_size, PROT_NONE); - stack_base = error + size - MAX_ARG_PAGES*TARGET_PAGE_SIZE; - p += stack_base; + target_stksiz = size; + target_stkbas = addr; - for (i = 0 ; i < MAX_ARG_PAGES ; i++) { - if (bprm->page[i]) { - info->rss++; - /* FIXME - check return value of memcpy_to_target() for failure */ - memcpy_to_target(stack_base, bprm->page[i], TARGET_PAGE_SIZE); - g_free(bprm->page[i]); - } - stack_base += TARGET_PAGE_SIZE; + if (setup_initial_stack(bprm, &p) != 0) { + perror("stk setup"); + exit(-1); } + return p; } @@ -761,86 +250,6 @@ static void padzero(abi_ulong elf_bss, abi_ulong last_bss) } } - -static abi_ulong create_elf_tables(abi_ulong p, int argc, int envc, - struct elfhdr * exec, - abi_ulong load_addr, - abi_ulong load_bias, - abi_ulong interp_load_addr, int ibcs, - struct image_info *info) -{ - abi_ulong sp; - int size; - abi_ulong u_platform; - const char *k_platform; - const int n = sizeof(elf_addr_t); - - sp = p; - u_platform = 0; - k_platform = ELF_PLATFORM; - if (k_platform) { - size_t len = strlen(k_platform) + 1; - sp -= (len + n - 1) & ~(n - 1); - u_platform = sp; - /* FIXME - check return value of memcpy_to_target() for failure */ - memcpy_to_target(sp, k_platform, len); - } - /* - * Force 16 byte _final_ alignment here for generality. - */ - sp = sp &~ (abi_ulong)15; - size = (DLINFO_ITEMS + 1) * 2; - if (k_platform) - size += 2; -#ifdef DLINFO_ARCH_ITEMS - size += DLINFO_ARCH_ITEMS * 2; -#endif - size += envc + argc + 2; - size += (!ibcs ? 3 : 1); /* argc itself */ - size *= n; - if (size & 15) - sp -= 16 - (size & 15); - - /* This is correct because Linux defines - * elf_addr_t as Elf32_Off / Elf64_Off - */ -#define NEW_AUX_ENT(id, val) do { \ - sp -= n; put_user_ual(val, sp); \ - sp -= n; put_user_ual(id, sp); \ - } while(0) - - NEW_AUX_ENT (AT_NULL, 0); - - /* There must be exactly DLINFO_ITEMS entries here. */ - NEW_AUX_ENT(AT_PHDR, (abi_ulong)(load_addr + exec->e_phoff)); - NEW_AUX_ENT(AT_PHENT, (abi_ulong)(sizeof (struct elf_phdr))); - NEW_AUX_ENT(AT_PHNUM, (abi_ulong)(exec->e_phnum)); - NEW_AUX_ENT(AT_PAGESZ, (abi_ulong)(TARGET_PAGE_SIZE)); - NEW_AUX_ENT(AT_BASE, (abi_ulong)(interp_load_addr)); - NEW_AUX_ENT(AT_FLAGS, (abi_ulong)0); - NEW_AUX_ENT(AT_ENTRY, load_bias + exec->e_entry); - NEW_AUX_ENT(AT_UID, (abi_ulong) getuid()); - NEW_AUX_ENT(AT_EUID, (abi_ulong) geteuid()); - NEW_AUX_ENT(AT_GID, (abi_ulong) getgid()); - NEW_AUX_ENT(AT_EGID, (abi_ulong) getegid()); - NEW_AUX_ENT(AT_HWCAP, (abi_ulong) ELF_HWCAP); - NEW_AUX_ENT(AT_CLKTCK, (abi_ulong) sysconf(_SC_CLK_TCK)); - if (k_platform) - NEW_AUX_ENT(AT_PLATFORM, u_platform); -#ifdef ARCH_DLINFO - /* - * ARCH_DLINFO must come last so platform specific code can enforce - * special alignment requirements on the AUXV if necessary (eg. PPC). - */ - ARCH_DLINFO; -#endif -#undef NEW_AUX_ENT - - sp = loader_build_argptr(envc, argc, sp, p, !ibcs); - return sp; -} - - static abi_ulong load_elf_interp(struct elfhdr * interp_elf_ex, int interpreter_fd, abi_ulong *interp_load_addr) @@ -858,9 +267,7 @@ static abi_ulong load_elf_interp(struct elfhdr * interp_elf_ex, last_bss = 0; error = 0; -#ifdef BSWAP_NEEDED bswap_ehdr(interp_elf_ex); -#endif /* First of all, some simple consistency checks */ if ((interp_elf_ex->e_type != ET_EXEC && interp_elf_ex->e_type != ET_DYN) || @@ -901,12 +308,7 @@ static abi_ulong load_elf_interp(struct elfhdr * interp_elf_ex, free (elf_phdata); return retval; } -#ifdef BSWAP_NEEDED - eppnt = elf_phdata; - for (i=0; ie_phnum; i++, eppnt++) { - bswap_phdr(eppnt); - } -#endif + bswap_phdr(elf_phdata, interp_elf_ex->e_phnum); if (interp_elf_ex->e_type == ET_DYN) { /* in order to avoid hardcoding the interpreter load @@ -923,54 +325,57 @@ static abi_ulong load_elf_interp(struct elfhdr * interp_elf_ex, } eppnt = elf_phdata; - for(i=0; ie_phnum; i++, eppnt++) - if (eppnt->p_type == PT_LOAD) { - int elf_type = MAP_PRIVATE | MAP_DENYWRITE; - int elf_prot = 0; - abi_ulong vaddr = 0; - abi_ulong k; - - if (eppnt->p_flags & PF_R) elf_prot = PROT_READ; - if (eppnt->p_flags & PF_W) elf_prot |= PROT_WRITE; - if (eppnt->p_flags & PF_X) elf_prot |= PROT_EXEC; - if (interp_elf_ex->e_type == ET_EXEC || load_addr_set) { - elf_type |= MAP_FIXED; - vaddr = eppnt->p_vaddr; - } - error = target_mmap(load_addr+TARGET_ELF_PAGESTART(vaddr), - eppnt->p_filesz + TARGET_ELF_PAGEOFFSET(eppnt->p_vaddr), - elf_prot, - elf_type, - interpreter_fd, - eppnt->p_offset - TARGET_ELF_PAGEOFFSET(eppnt->p_vaddr)); - - if (error == -1) { - /* Real error */ - close(interpreter_fd); - free(elf_phdata); - return ~((abi_ulong)0UL); - } - - if (!load_addr_set && interp_elf_ex->e_type == ET_DYN) { - load_addr = error; - load_addr_set = 1; + for (i = 0; i < interp_elf_ex->e_phnum; i++, eppnt++) + if (eppnt->p_type == PT_LOAD) { + int elf_type = MAP_PRIVATE | MAP_DENYWRITE; + int elf_prot = 0; + abi_ulong vaddr = 0; + abi_ulong k; + + if (eppnt->p_flags & PF_R) { + elf_prot = PROT_READ; + } + if (eppnt->p_flags & PF_W) { + elf_prot |= PROT_WRITE; + } + if (eppnt->p_flags & PF_X) { + elf_prot |= PROT_EXEC; + } + if (interp_elf_ex->e_type == ET_EXEC || load_addr_set) { + elf_type |= MAP_FIXED; + vaddr = eppnt->p_vaddr; + } + error = target_mmap(load_addr+TARGET_ELF_PAGESTART(vaddr), + eppnt->p_filesz + TARGET_ELF_PAGEOFFSET(eppnt->p_vaddr), + elf_prot, elf_type, interpreter_fd, eppnt->p_offset - + TARGET_ELF_PAGEOFFSET(eppnt->p_vaddr)); + if (error == -1) { + /* Real error */ + close(interpreter_fd); + free(elf_phdata); + return ~((abi_ulong)0UL); + } + if (!load_addr_set && interp_elf_ex->e_type == ET_DYN) { + load_addr = error; + load_addr_set = 1; + } + /* + * Find the end of the file mapping for this phdr, and keep + * track of the largest address we see for this. + */ + k = load_addr + eppnt->p_vaddr + eppnt->p_filesz; + if (k > elf_bss) { + elf_bss = k; + } + /* + * Do the same thing for the memory mapping - between + * elf_bss and last_bss is the bss section. + */ + k = load_addr + eppnt->p_memsz + eppnt->p_vaddr; + if (k > last_bss) { + last_bss = k; + } } - - /* - * Find the end of the file mapping for this phdr, and keep - * track of the largest address we see for this. - */ - k = load_addr + eppnt->p_vaddr + eppnt->p_filesz; - if (k > elf_bss) elf_bss = k; - - /* - * Do the same thing for the memory mapping - between - * elf_bss and last_bss is the bss section. - */ - k = load_addr + eppnt->p_memsz + eppnt->p_vaddr; - if (k > last_bss) last_bss = k; - } - /* Now use mmap to map the library into memory. */ close(interpreter_fd); @@ -982,7 +387,8 @@ static abi_ulong load_elf_interp(struct elfhdr * interp_elf_ex, * bss page. */ padzero(elf_bss, last_bss); - elf_bss = TARGET_ELF_PAGESTART(elf_bss + qemu_host_page_size - 1); /* What we have mapped so far */ + /* What we have mapped so far */ + elf_bss = TARGET_ELF_PAGESTART(elf_bss + qemu_host_page_size - 1); /* Map the last of the bss segment */ if (last_bss > elf_bss) { @@ -1051,9 +457,7 @@ static void load_symbols(struct elfhdr *hdr, int fd) for (i = 0; i < hdr->e_shnum; i++) { if (read(fd, &sechdr, sizeof(sechdr)) != sizeof(sechdr)) return; -#ifdef BSWAP_NEEDED - bswap_shdr(&sechdr); -#endif + bswap_shdr(&sechdr, 1); if (sechdr.sh_type == SHT_SYMTAB) { symtab = sechdr; lseek(fd, hdr->e_shoff @@ -1061,9 +465,7 @@ static void load_symbols(struct elfhdr *hdr, int fd) if (read(fd, &strtab, sizeof(strtab)) != sizeof(strtab)) return; -#ifdef BSWAP_NEEDED - bswap_shdr(&strtab); -#endif + bswap_shdr(&strtab, 1); goto found; } } @@ -1096,9 +498,7 @@ static void load_symbols(struct elfhdr *hdr, int fd) i = 0; while (i < nsyms) { -#ifdef BSWAP_NEEDED bswap_sym(syms + i); -#endif // Throw away entries which we do not need. if (syms[i].st_shndx == SHN_UNDEF || syms[i].st_shndx >= SHN_LORESERVE || @@ -1150,6 +550,30 @@ static void load_symbols(struct elfhdr *hdr, int fd) syminfos = s; } +/* Check the elf header and see if this a target elf binary. */ +int is_target_elf_binary(int fd) +{ + uint8_t buf[128]; + struct elfhdr elf_ex; + + if (lseek(fd, 0L, SEEK_SET) < 0) { + return 0; + } + if (read(fd, buf, sizeof(buf)) < 0) { + return 0; + } + + elf_ex = *((struct elfhdr *)buf); + bswap_ehdr(&elf_ex); + + if ((elf_ex.e_type != ET_EXEC && elf_ex.e_type != ET_DYN) || + (!elf_check_arch(elf_ex.e_machine))) { + return 0; + } else { + return 1; + } +} + int load_elf_binary(struct bsd_binprm *bprm, struct target_pt_regs *regs, struct image_info *info) { @@ -1169,20 +593,18 @@ int load_elf_binary(struct bsd_binprm *bprm, struct target_pt_regs *regs, int retval; char * elf_interpreter; abi_ulong elf_entry, interp_load_addr = 0; - int status; abi_ulong start_code, end_code, start_data, end_data; abi_ulong reloc_func_desc = 0; +#ifdef LOW_ELF_STACK abi_ulong elf_stack; +#endif char passed_fileno[6]; ibcs2_interpreter = 0; - status = 0; load_addr = 0; load_bias = 0; elf_ex = *((struct elfhdr *) bprm->buf); /* exec-header */ -#ifdef BSWAP_NEEDED bswap_ehdr(&elf_ex); -#endif /* First of all, some simple consistency checks */ if ((elf_ex.e_type != ET_EXEC && elf_ex.e_type != ET_DYN) || @@ -1190,12 +612,14 @@ int load_elf_binary(struct bsd_binprm *bprm, struct target_pt_regs *regs, return -ENOEXEC; } +#ifndef __FreeBSD__ bprm->p = copy_elf_strings(1, &bprm->filename, bprm->page, bprm->p); bprm->p = copy_elf_strings(bprm->envc,bprm->envp,bprm->page,bprm->p); bprm->p = copy_elf_strings(bprm->argc,bprm->argv,bprm->page,bprm->p); if (!bprm->p) { retval = -E2BIG; } +#endif /* ! __FreeBSD__ */ /* Now read in all of the header information */ elf_phdata = (struct elf_phdr *)malloc(elf_ex.e_phentsize*elf_ex.e_phnum); @@ -1216,19 +640,16 @@ int load_elf_binary(struct bsd_binprm *bprm, struct target_pt_regs *regs, return -errno; } -#ifdef BSWAP_NEEDED - elf_ppnt = elf_phdata; - for (i=0; ip_type == PT_INTERP) { if ( elf_interpreter != NULL ) { @@ -1274,9 +695,9 @@ int load_elf_binary(struct bsd_binprm *bprm, struct target_pt_regs *regs, /* JRP - Need to add X86 lib dir stuff here... */ - if (strcmp(elf_interpreter,"/usr/lib/libc.so.1") == 0 || - strcmp(elf_interpreter,"/usr/lib/ld.so.1") == 0) { - ibcs2_interpreter = 1; + if (strcmp(elf_interpreter, "/usr/lib/libc.so.1") == 0 || + strcmp(elf_interpreter, "/usr/lib/ld-elf.so.1") == 0) { + ibcs2_interpreter = 1; } #if 0 @@ -1406,7 +827,7 @@ int load_elf_binary(struct bsd_binprm *bprm, struct target_pt_regs *regs, * address. */ - for(i = 0, elf_ppnt = elf_phdata; i < elf_ex.e_phnum; i++, elf_ppnt++) { + for (i = 0, elf_ppnt = elf_phdata; i < elf_ex.e_phnum; i++, elf_ppnt++) { int elf_prot = 0; int elf_flags = 0; abi_ulong error; @@ -1423,7 +844,7 @@ int load_elf_binary(struct bsd_binprm *bprm, struct target_pt_regs *regs, } else if (elf_ex.e_type == ET_DYN) { /* Try and get dynamic programs out of the way of the default mmap base, as well as whatever program they might try to exec. This - is because the brk will follow the loader, and is not movable. */ + is because the brk will follow the loader, and is not movable. */ /* NOTE: for qemu, we do a big mmap to get enough space without hardcoding any address */ error = target_mmap(0, ET_DYN_MAP_SIZE, @@ -1520,7 +941,7 @@ int load_elf_binary(struct bsd_binprm *bprm, struct target_pt_regs *regs, #ifdef LOW_ELF_STACK info->start_stack = bprm->p = elf_stack - 4; #endif - bprm->p = create_elf_tables(bprm->p, + bprm->p = target_create_elf_tables(bprm->p, bprm->argc, bprm->envc, &elf_ex, @@ -1536,19 +957,22 @@ int load_elf_binary(struct bsd_binprm *bprm, struct target_pt_regs *regs, info->end_data = end_data; info->start_stack = bprm->p; - /* Calling set_brk effectively mmaps the pages that we need for the bss and break - sections */ + /* + * Calling set_brk effectively mmaps the pages that we need for the bss + * and break sections. + */ set_brk(elf_bss, elf_brk); padzero(elf_bss, elf_brk); #if 0 - printf("(start_brk) %x\n" , info->start_brk); - printf("(end_code) %x\n" , info->end_code); - printf("(start_code) %x\n" , info->start_code); - printf("(end_data) %x\n" , info->end_data); - printf("(start_stack) %x\n" , info->start_stack); - printf("(brk) %x\n" , info->brk); + printf("(start_brk) 0x" TARGET_FMT_lx "\n" , info->start_brk); + printf("(end_code) 0x" TARGET_FMT_lx "\n" , info->end_code); + printf("(start_code) 0x" TARGET_FMT_lx "\n" , info->start_code); + printf("(start_data) 0x" TARGET_FMT_lx "\n" , info->start_data); + printf("(end_data) 0x" TARGET_FMT_lx "\n" , info->end_data); + printf("(start_stack) 0x" TARGET_FMT_lx "\n" , info->start_stack); + printf("(brk) 0x" TARGET_FMT_lx "\n" , info->brk); #endif if ( info->personality == PER_SVR4 ) @@ -1557,12 +981,21 @@ int load_elf_binary(struct bsd_binprm *bprm, struct target_pt_regs *regs, and some applications "depend" upon this behavior. Since we do not have the power to recompile these, we emulate the SVr4 behavior. Sigh. */ - mapped_addr = target_mmap(0, qemu_host_page_size, PROT_READ | PROT_EXEC, - MAP_FIXED | MAP_PRIVATE, -1, 0); + mapped_addr = target_mmap(0, qemu_host_page_size, PROT_READ | + PROT_EXEC, MAP_FIXED | MAP_PRIVATE, -1, 0); + if (mapped_addr == -1) { + return -1; + } } info->entry = elf_entry; +#ifdef USE_ELF_CORE_DUMP + /* not yet */ + /* bprm->core_dump = &elf_core_dump; */ + bprm->core_dump = NULL; +#endif + return 0; } @@ -1574,5 +1007,5 @@ static int load_aout_interp(void * exptr, int interp_fd) void do_init_thread(struct target_pt_regs *regs, struct image_info *infop) { - init_thread(regs, infop); + target_thread_init(regs, infop); } diff --git a/bsd-user/freebsd/target_os_elf.h b/bsd-user/freebsd/target_os_elf.h new file mode 100644 index 0000000..67637a0 --- /dev/null +++ b/bsd-user/freebsd/target_os_elf.h @@ -0,0 +1,145 @@ +/* + * freebsd ELF definitions + * + * Copyright (c) 2013 Stacey D. Son + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see . + */ +#ifndef _TARGET_OS_ELF_H_ +#define _TARGET_OS_ELF_H_ + +#include "target_arch_elf.h" +#include "elf.h" + +/* this flag is uneffective under linux too, should be deleted */ +#ifndef MAP_DENYWRITE +#define MAP_DENYWRITE 0 +#endif + +/* should probably go in elf.h */ +#ifndef ELIBBAD +#define ELIBBAD 80 +#endif + +#ifndef ELF_PLATFORM +#define ELF_PLATFORM (NULL) +#endif + +#ifndef ELF_HWCAP +#define ELF_HWCAP 0 +#endif + +#ifdef TARGET_ABI32 +#undef ELF_CLASS +#define ELF_CLASS ELFCLASS32 +#undef bswaptls +#define bswaptls(ptr) bswap32s(ptr) +#endif + +struct exec +{ + unsigned int a_info; /* Use macros N_MAGIC, etc for access */ + unsigned int a_text; /* length of text, in bytes */ + unsigned int a_data; /* length of data, in bytes */ + unsigned int a_bss; /* length of uninitialized data area, in bytes */ + unsigned int a_syms; /* length of symbol table data in file, in bytes */ + unsigned int a_entry; /* start address */ + unsigned int a_trsize; /* length of relocation info for text, in bytes */ + unsigned int a_drsize; /* length of relocation info for data, in bytes */ +}; + + +#define N_MAGIC(exec) ((exec).a_info & 0xffff) +#define OMAGIC 0407 +#define NMAGIC 0410 +#define ZMAGIC 0413 +#define QMAGIC 0314 + +/* max code+data+bss space allocated to elf interpreter */ +#define INTERP_MAP_SIZE (32 * 1024 * 1024) + +/* max code+data+bss+brk space allocated to ET_DYN executables */ +#define ET_DYN_MAP_SIZE (128 * 1024 * 1024) + +/* Necessary parameters */ +#define TARGET_ELF_EXEC_PAGESIZE TARGET_PAGE_SIZE +#define TARGET_ELF_PAGESTART(_v) ((_v) & \ + ~(unsigned long)(TARGET_ELF_EXEC_PAGESIZE-1)) +#define TARGET_ELF_PAGEOFFSET(_v) ((_v) & (TARGET_ELF_EXEC_PAGESIZE-1)) + +#define INTERPRETER_NONE 0 +#define INTERPRETER_AOUT 1 +#define INTERPRETER_ELF 2 + +#define DLINFO_ITEMS 12 + +static abi_ulong target_create_elf_tables(abi_ulong p, int argc, int envc, + struct elfhdr * exec, + abi_ulong load_addr, + abi_ulong load_bias, + abi_ulong interp_load_addr, int ibcs, + struct image_info *info) +{ + abi_ulong sp; + int size; + const int n = sizeof(elf_addr_t); + + sp = p; + /* + * Force 16 byte _final_ alignment here for generality. + */ + sp = sp &~ (abi_ulong)15; + size = (DLINFO_ITEMS + 1) * 2; + size += envc + argc + 2; + size += (!ibcs ? 3 : 1); /* argc itself */ + size *= n; + if (size & 15) + sp -= 16 - (size & 15); + + /* This is correct because Linux defines + * elf_addr_t as Elf32_Off / Elf64_Off + */ +#define NEW_AUX_ENT(id, val) do { \ + sp -= n; put_user_ual(val, sp); \ + sp -= n; put_user_ual(id, sp); \ + } while(0) + + NEW_AUX_ENT (AT_NULL, 0); + + /* There must be exactly DLINFO_ITEMS entries here. */ + NEW_AUX_ENT(AT_PHDR, (abi_ulong)(load_addr + exec->e_phoff)); + NEW_AUX_ENT(AT_PHENT, (abi_ulong)(sizeof (struct elf_phdr))); + NEW_AUX_ENT(AT_PHNUM, (abi_ulong)(exec->e_phnum)); + NEW_AUX_ENT(AT_PAGESZ, (abi_ulong)(TARGET_PAGE_SIZE)); + NEW_AUX_ENT(AT_BASE, (abi_ulong)(interp_load_addr)); + NEW_AUX_ENT(AT_FLAGS, (abi_ulong)0); + NEW_AUX_ENT(AT_ENTRY, load_bias + exec->e_entry); + NEW_AUX_ENT(AT_UID, (abi_ulong) getuid()); + NEW_AUX_ENT(AT_EUID, (abi_ulong) geteuid()); + NEW_AUX_ENT(AT_GID, (abi_ulong) getgid()); + NEW_AUX_ENT(AT_EGID, (abi_ulong) getegid()); +#ifdef ARCH_DLINFO + /* + * ARCH_DLINFO must come last so platform specific code can enforce + * special alignment requirements on the AUXV if necessary (eg. PPC). + */ + ARCH_DLINFO; +#endif +#undef NEW_AUX_ENT + + sp = loader_build_argptr(envc, argc, sp, p, !ibcs); + return sp; +} + +#endif /* _TARGET_OS_ELF_H_ */ diff --git a/bsd-user/freebsd/target_os_thread.h b/bsd-user/freebsd/target_os_thread.h new file mode 100644 index 0000000..519aad8 --- /dev/null +++ b/bsd-user/freebsd/target_os_thread.h @@ -0,0 +1,6 @@ +#ifndef _TARGET_OS_THREAD_H_ +#define _TARGET_OS_THREAD_H_ + +#include "target_arch_thread.h" + +#endif /* !_TARGET_OS_THREAD_H_ */ diff --git a/bsd-user/i386/target_arch_elf.h b/bsd-user/i386/target_arch_elf.h new file mode 100644 index 0000000..83b2197 --- /dev/null +++ b/bsd-user/i386/target_arch_elf.h @@ -0,0 +1,62 @@ +/* + * i386 ELF definitions + * + * Copyright (c) 2013 Stacey D. Son + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see . + */ +#ifndef _TARGET_ARCH_ELF_H_ +#define _TARGET_ARCH_ELF_H_ + +#define ELF_START_MMAP 0x80000000 + +/* + * This is used to ensure we don't load something for the wrong architecture. + */ +#define elf_check_arch(x) ( ((x) == EM_386) || ((x) == EM_486) ) + +/* + * These are used to set parameters in the core dumps. + */ +#define ELF_CLASS ELFCLASS32 +#define ELF_DATA ELFDATA2LSB +#define ELF_ARCH EM_386 + +#define USE_ELF_CORE_DUMP +#define ELF_EXEC_PAGESIZE 4096 + +/* XXX */ +#ifndef __FreeBSD__ +#define ELF_PLATFORM target_elf_get_platform() + +static const char *target_elf_get_platform(void) +{ + static char elf_platform[] = "i386"; + int family = (thread_env->cpuid_version >> 8) & 0xff; + if (family > 6) + family = 6; + if (family >= 3) + elf_platform[1] = '0' + family; + return elf_platform; +} + +#define ELF_HWCAP target_elf_get_hwcap() + +static uint32_t target_elf_get_hwcap(void) +{ + return thread_env->features[FEAT_1_EDX]; +} +#endif /* ! __FreeBSD__ */ + +#endif /* _TARGET_ARCH_ELF_H_ */ diff --git a/bsd-user/i386/target_arch_thread.h b/bsd-user/i386/target_arch_thread.h new file mode 100644 index 0000000..407aa6c --- /dev/null +++ b/bsd-user/i386/target_arch_thread.h @@ -0,0 +1,45 @@ +/* + * i386 thread support + * + * Copyright (c) 2013 Stacey D. Son + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see . + */ +#ifndef _TARGET_ARCH_THREAD_H_ +#define _TARGET_ARCH_THREAD_H_ + +/* Compare to vm_machdep.c cpu_set_upcall_kse() */ +static inline void target_thread_set_upcall(CPUX86State *regs, abi_ulong entry, + abi_ulong arg, abi_ulong stack_base, abi_ulong stack_size) +{ + /* XXX */ +} + +static inline void target_thread_init(struct target_pt_regs *regs, + struct image_info *infop) +{ + regs->esp = infop->start_stack; + regs->eip = infop->entry; + + /* SVR4/i386 ABI (pages 3-31, 3-32) says that when the program + starts %edx contains a pointer to a function which might be + registered using `atexit'. This provides a mean for the + dynamic linker to call DT_FINI functions for shared libraries + that have been loaded before the code runs. + + A value of 0 tells we have no such handler. */ + regs->edx = 0; +} + +#endif /* !_TARGET_ARCH_THREAD_H_ */ diff --git a/bsd-user/mips/target_arch_elf.h b/bsd-user/mips/target_arch_elf.h new file mode 100644 index 0000000..8630f34 --- /dev/null +++ b/bsd-user/mips/target_arch_elf.h @@ -0,0 +1,36 @@ +/* + * mips ELF definitions + * + * Copyright (c) 2013 Stacey D. Son + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see . + */ +#ifndef _TARGET_ARCH_ELF_H_ +#define _TARGET_ARCH_ELF_H_ + +#define elf_check_arch(x) ( (x) == EM_MIPS ) +#define ELF_START_MMAP 0x80000000 +#define ELF_CLASS ELFCLASS32 + +#ifdef TARGET_WORDS_BIGENDIAN +#define ELF_DATA ELFDATA2MSB +#else +#define ELF_DATA ELFDATA2LSB +#endif +#define ELF_ARCH EM_MIPS + +#define USE_ELF_CORE_DUMP +#define ELF_EXEC_PAGESIZE 4096 + +#endif /* _TARGET_ARCH_ELF_H_ */ diff --git a/bsd-user/mips/target_arch_thread.h b/bsd-user/mips/target_arch_thread.h new file mode 100644 index 0000000..c76b0d6 --- /dev/null +++ b/bsd-user/mips/target_arch_thread.h @@ -0,0 +1,54 @@ +/* + * mips thread support + * + * Copyright (c) 2013 Stacey D. Son + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see . + */ +#ifndef _TARGET_ARCH_THREAD_H_ +#define _TARGET_ARCH_THREAD_H_ + +/* Compare to mips/mips/vm_machdep.c cpu_set_upcall_kse() */ +static inline void target_thread_set_upcall(CPUMIPSState *regs, abi_ulong entry, + abi_ulong arg, abi_ulong stack_base, abi_ulong stack_size) +{ + abi_ulong sp; + + /* + * At the point where a function is called, sp must be 8 + * byte aligned[for compatibility with 64-bit CPUs] + * in ``See MIPS Run'' by D. Sweetman, p. 269 + * align stack + */ + sp = ((stack_base + stack_size) & ~0x7) - TARGET_CALLFRAME_SIZ; + + /* t9 = pc = start function entry */ + regs->active_tc.gpr[25] = regs->active_tc.PC = entry; + /* a0 = arg */ + regs->active_tc.gpr[4] = arg; + /* sp = top of the stack */ + regs->active_tc.gpr[29] = sp; +} + +static inline void target_thread_init(struct target_pt_regs *regs, + struct image_info *infop) +{ + regs->cp0_status = 2 << CP0St_KSU; + regs->regs[25] = regs->cp0_epc = infop->entry & ~3; /* t9/pc = entry */ + regs->regs[4] = regs->regs[29] = infop->start_stack; /* a0/sp = stack */ + regs->regs[5] = regs->regs[6] = 0; /* a1/a2 = 0 */ + regs->regs[7] = TARGET_PS_STRINGS; /* a3 = ps_strings */ +} + +#endif /* !_TARGET_ARCH_THREAD_H_ */ diff --git a/bsd-user/mips64/target_arch_elf.h b/bsd-user/mips64/target_arch_elf.h new file mode 100644 index 0000000..ca0da03 --- /dev/null +++ b/bsd-user/mips64/target_arch_elf.h @@ -0,0 +1,36 @@ +/* + * mips64 ELF definitions + * + * Copyright (c) 2013 Stacey D. Son + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see . + */ +#ifndef _TARGET_ARCH_ELF_H_ +#define _TARGET_ARCH_ELF_H_ + +#define elf_check_arch(x) ( (x) == EM_MIPS ) +#define ELF_START_MMAP 0x2aaaaab000ULL +#define ELF_CLASS ELFCLASS64 + +#ifdef TARGET_WORDS_BIGENDIAN +#define ELF_DATA ELFDATA2MSB +#else +#define ELF_DATA ELFDATA2LSB +#endif +#define ELF_ARCH EM_MIPS + +#define USE_ELF_CORE_DUMP +#define ELF_EXEC_PAGESIZE 4096 + +#endif /* _TARGET_ARCH_ELF_H_ */ diff --git a/bsd-user/mips64/target_arch_thread.h b/bsd-user/mips64/target_arch_thread.h new file mode 100644 index 0000000..7fcd866 --- /dev/null +++ b/bsd-user/mips64/target_arch_thread.h @@ -0,0 +1,54 @@ +/* + * mips64 thread support + * + * Copyright (c) 2013 Stacey D. Son + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see . + */ +#ifndef _MIPS64_ARCH_THREAD_H_ +#define _MIPS64_ARCH_THREAD_H_ + +/* Compare to mips/mips/vm_machdep.c cpu_set_upcall_kse() */ +static inline void target_thread_set_upcall(CPUMIPSState *regs, abi_ulong entry, + abi_ulong arg, abi_ulong stack_base, abi_ulong stack_size) +{ + abi_ulong sp; + + /* + * At the point where a function is called, sp must be 8 + * byte aligned[for compatibility with 64-bit CPUs] + * in ``See MIPS Run'' by D. Sweetman, p. 269 + * align stack + */ + sp = ((stack_base + stack_size) & ~0x7) - TARGET_CALLFRAME_SIZ; + + /* t9 = pc = start function entry */ + regs->active_tc.gpr[25] = regs->active_tc.PC = entry; + /* a0 = arg */ + regs->active_tc.gpr[4] = arg; + /* sp = top of the stack */ + regs->active_tc.gpr[29] = sp; +} + +static inline void target_thread_init(struct target_pt_regs *regs, + struct image_info *infop) +{ + regs->cp0_status = 2 << CP0St_KSU; + regs->regs[25] = regs->cp0_epc = infop->entry & ~3; /* t9/pc = entry */ + regs->regs[4] = regs->regs[29] = infop->start_stack; /* a0/sp = stack */ + regs->regs[5] = regs->regs[6] = 0; /* a1/a2 = 0 */ + regs->regs[7] = TARGET_PS_STRINGS; /* a3 = ps_strings */ +} + +#endif /* !_MIPS64_ARCH_THREAD_H_ */ diff --git a/bsd-user/netbsd/target_os_elf.h b/bsd-user/netbsd/target_os_elf.h new file mode 100644 index 0000000..bf663d2 --- /dev/null +++ b/bsd-user/netbsd/target_os_elf.h @@ -0,0 +1,226 @@ +/* + * netbsd ELF definitions + * + * Copyright (c) 2013 Stacey D. Son + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see . + */ +#ifndef _TARGET_OS_ELF_H_ +#define _TARGET_OS_ELF_H_ + +#include "target_arch_elf.h" +#include "elf.h" + +/* from personality.h */ + +/* + * Flags for bug emulation. + * + * These occupy the top three bytes. + */ +enum { + ADDR_NO_RANDOMIZE = 0x0040000, /* disable randomization of VA + space */ + FDPIC_FUNCPTRS = 0x0080000, /* userspace function ptrs + point to descriptors + (signal handling) */ + MMAP_PAGE_ZERO = 0x0100000, + ADDR_COMPAT_LAYOUT = 0x0200000, + READ_IMPLIES_EXEC = 0x0400000, + ADDR_LIMIT_32BIT = 0x0800000, + SHORT_INODE = 0x1000000, + WHOLE_SECONDS = 0x2000000, + STICKY_TIMEOUTS = 0x4000000, + ADDR_LIMIT_3GB = 0x8000000, +}; + +/* + * Personality types. + * + * These go in the low byte. Avoid using the top bit, it will + * conflict with error returns. + */ +enum { + PER_LINUX = 0x0000, + PER_LINUX_32BIT = 0x0000 | ADDR_LIMIT_32BIT, + PER_LINUX_FDPIC = 0x0000 | FDPIC_FUNCPTRS, + PER_SVR4 = 0x0001 | STICKY_TIMEOUTS | MMAP_PAGE_ZERO, + PER_SVR3 = 0x0002 | STICKY_TIMEOUTS | SHORT_INODE, + PER_SCOSVR3 = 0x0003 | STICKY_TIMEOUTS | + WHOLE_SECONDS | SHORT_INODE, + PER_OSR5 = 0x0003 | STICKY_TIMEOUTS | WHOLE_SECONDS, + PER_WYSEV386 = 0x0004 | STICKY_TIMEOUTS | SHORT_INODE, + PER_ISCR4 = 0x0005 | STICKY_TIMEOUTS, + PER_BSD = 0x0006, + PER_SUNOS = 0x0006 | STICKY_TIMEOUTS, + PER_XENIX = 0x0007 | STICKY_TIMEOUTS | SHORT_INODE, + PER_LINUX32 = 0x0008, + PER_LINUX32_3GB = 0x0008 | ADDR_LIMIT_3GB, + PER_IRIX32 = 0x0009 | STICKY_TIMEOUTS,/* IRIX5 32-bit */ + PER_IRIXN32 = 0x000a | STICKY_TIMEOUTS,/* IRIX6 new 32-bit */ + PER_IRIX64 = 0x000b | STICKY_TIMEOUTS,/* IRIX6 64-bit */ + PER_RISCOS = 0x000c, + PER_SOLARIS = 0x000d | STICKY_TIMEOUTS, + PER_UW7 = 0x000e | STICKY_TIMEOUTS | MMAP_PAGE_ZERO, + PER_OSF4 = 0x000f, /* OSF/1 v4 */ + PER_HPUX = 0x0010, + PER_MASK = 0x00ff, +}; + +/* + * Return the base personality without flags. + */ +#define personality(pers) (pers & PER_MASK) + +/* this flag is uneffective under linux too, should be deleted */ +#ifndef MAP_DENYWRITE +#define MAP_DENYWRITE 0 +#endif + +/* should probably go in elf.h */ +#ifndef ELIBBAD +#define ELIBBAD 80 +#endif + +#ifndef ELF_PLATFORM +#define ELF_PLATFORM (NULL) +#endif + +#ifndef ELF_HWCAP +#define ELF_HWCAP 0 +#endif + +#ifdef TARGET_ABI32 +#undef ELF_CLASS +#define ELF_CLASS ELFCLASS32 +#undef bswaptls +#define bswaptls(ptr) bswap32s(ptr) +#endif + +struct exec +{ + unsigned int a_info; /* Use macros N_MAGIC, etc for access */ + unsigned int a_text; /* length of text, in bytes */ + unsigned int a_data; /* length of data, in bytes */ + unsigned int a_bss; /* length of uninitialized data area, in bytes */ + unsigned int a_syms; /* length of symbol table data in file, in bytes */ + unsigned int a_entry; /* start address */ + unsigned int a_trsize; /* length of relocation info for text, in bytes */ + unsigned int a_drsize; /* length of relocation info for data, in bytes */ +}; + + +#define N_MAGIC(exec) ((exec).a_info & 0xffff) +#define OMAGIC 0407 +#define NMAGIC 0410 +#define ZMAGIC 0413 +#define QMAGIC 0314 + +/* max code+data+bss space allocated to elf interpreter */ +#define INTERP_MAP_SIZE (32 * 1024 * 1024) + +/* max code+data+bss+brk space allocated to ET_DYN executables */ +#define ET_DYN_MAP_SIZE (128 * 1024 * 1024) + +/* Necessary parameters */ +#define TARGET_ELF_EXEC_PAGESIZE TARGET_PAGE_SIZE +#define TARGET_ELF_PAGESTART(_v) ((_v) & \ + ~(unsigned long)(TARGET_ELF_EXEC_PAGESIZE-1)) +#define TARGET_ELF_PAGEOFFSET(_v) ((_v) & (TARGET_ELF_EXEC_PAGESIZE-1)) + +#define INTERPRETER_NONE 0 +#define INTERPRETER_AOUT 1 +#define INTERPRETER_ELF 2 + +#define DLINFO_ITEMS 12 + +static abi_ulong target_create_elf_tables(abi_ulong p, int argc, int envc, + struct elfhdr * exec, + abi_ulong load_addr, + abi_ulong load_bias, + abi_ulong interp_load_addr, int ibcs, + struct image_info *info) +{ + abi_ulong sp; + int size; + abi_ulong u_platform; + const char *k_platform; + const int n = sizeof(elf_addr_t); + + sp = p; + u_platform = 0; + k_platform = ELF_PLATFORM; + if (k_platform) { + size_t len = strlen(k_platform) + 1; + sp -= (len + n - 1) & ~(n - 1); + u_platform = sp; + /* FIXME - check return value of memcpy_to_target() for failure */ + memcpy_to_target(sp, k_platform, len); + } + /* + * Force 16 byte _final_ alignment here for generality. + */ + sp = sp &~ (abi_ulong)15; + size = (DLINFO_ITEMS + 1) * 2; + if (k_platform) + size += 2; +#ifdef DLINFO_ARCH_ITEMS + size += DLINFO_ARCH_ITEMS * 2; +#endif + size += envc + argc + 2; + size += (!ibcs ? 3 : 1); /* argc itself */ + size *= n; + if (size & 15) + sp -= 16 - (size & 15); + + /* This is correct because Linux defines + * elf_addr_t as Elf32_Off / Elf64_Off + */ +#define NEW_AUX_ENT(id, val) do { \ + sp -= n; put_user_ual(val, sp); \ + sp -= n; put_user_ual(id, sp); \ + } while(0) + + NEW_AUX_ENT (AT_NULL, 0); + + /* There must be exactly DLINFO_ITEMS entries here. */ + NEW_AUX_ENT(AT_PHDR, (abi_ulong)(load_addr + exec->e_phoff)); + NEW_AUX_ENT(AT_PHENT, (abi_ulong)(sizeof (struct elf_phdr))); + NEW_AUX_ENT(AT_PHNUM, (abi_ulong)(exec->e_phnum)); + NEW_AUX_ENT(AT_PAGESZ, (abi_ulong)(TARGET_PAGE_SIZE)); + NEW_AUX_ENT(AT_BASE, (abi_ulong)(interp_load_addr)); + NEW_AUX_ENT(AT_FLAGS, (abi_ulong)0); + NEW_AUX_ENT(AT_ENTRY, load_bias + exec->e_entry); + NEW_AUX_ENT(AT_UID, (abi_ulong) getuid()); + NEW_AUX_ENT(AT_EUID, (abi_ulong) geteuid()); + NEW_AUX_ENT(AT_GID, (abi_ulong) getgid()); + NEW_AUX_ENT(AT_EGID, (abi_ulong) getegid()); + NEW_AUX_ENT(AT_HWCAP, (abi_ulong) ELF_HWCAP); + NEW_AUX_ENT(AT_CLKTCK, (abi_ulong) sysconf(_SC_CLK_TCK)); + if (k_platform) + NEW_AUX_ENT(AT_PLATFORM, u_platform); +#ifdef ARCH_DLINFO + /* + * ARCH_DLINFO must come last so platform specific code can enforce + * special alignment requirements on the AUXV if necessary (eg. PPC). + */ + ARCH_DLINFO; +#endif +#undef NEW_AUX_ENT + + sp = loader_build_argptr(envc, argc, sp, p, !ibcs); + return sp; +} + +#endif /* _TARGET_OS_ELF_H_ */ diff --git a/bsd-user/netbsd/target_os_thread.h b/bsd-user/netbsd/target_os_thread.h new file mode 100644 index 0000000..519aad8 --- /dev/null +++ b/bsd-user/netbsd/target_os_thread.h @@ -0,0 +1,6 @@ +#ifndef _TARGET_OS_THREAD_H_ +#define _TARGET_OS_THREAD_H_ + +#include "target_arch_thread.h" + +#endif /* !_TARGET_OS_THREAD_H_ */ diff --git a/bsd-user/openbsd/target_os_elf.h b/bsd-user/openbsd/target_os_elf.h new file mode 100644 index 0000000..978d944 --- /dev/null +++ b/bsd-user/openbsd/target_os_elf.h @@ -0,0 +1,226 @@ +/* + * openbsd ELF definitions + * + * Copyright (c) 2013 Stacey D. Son + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see . + */ +#ifndef _TARGET_OS_ELF_H_ +#define _TARGET_OS_ELF_H_ + +#include "target_arch_elf.h" +#include "elf.h" + +/* from personality.h */ + +/* + * Flags for bug emulation. + * + * These occupy the top three bytes. + */ +enum { + ADDR_NO_RANDOMIZE = 0x0040000, /* disable randomization of VA + space */ + FDPIC_FUNCPTRS = 0x0080000, /* userspace function ptrs + point to descriptors + (signal handling) */ + MMAP_PAGE_ZERO = 0x0100000, + ADDR_COMPAT_LAYOUT = 0x0200000, + READ_IMPLIES_EXEC = 0x0400000, + ADDR_LIMIT_32BIT = 0x0800000, + SHORT_INODE = 0x1000000, + WHOLE_SECONDS = 0x2000000, + STICKY_TIMEOUTS = 0x4000000, + ADDR_LIMIT_3GB = 0x8000000, +}; + +/* + * Personality types. + * + * These go in the low byte. Avoid using the top bit, it will + * conflict with error returns. + */ +enum { + PER_LINUX = 0x0000, + PER_LINUX_32BIT = 0x0000 | ADDR_LIMIT_32BIT, + PER_LINUX_FDPIC = 0x0000 | FDPIC_FUNCPTRS, + PER_SVR4 = 0x0001 | STICKY_TIMEOUTS | MMAP_PAGE_ZERO, + PER_SVR3 = 0x0002 | STICKY_TIMEOUTS | SHORT_INODE, + PER_SCOSVR3 = 0x0003 | STICKY_TIMEOUTS | + WHOLE_SECONDS | SHORT_INODE, + PER_OSR5 = 0x0003 | STICKY_TIMEOUTS | WHOLE_SECONDS, + PER_WYSEV386 = 0x0004 | STICKY_TIMEOUTS | SHORT_INODE, + PER_ISCR4 = 0x0005 | STICKY_TIMEOUTS, + PER_BSD = 0x0006, + PER_SUNOS = 0x0006 | STICKY_TIMEOUTS, + PER_XENIX = 0x0007 | STICKY_TIMEOUTS | SHORT_INODE, + PER_LINUX32 = 0x0008, + PER_LINUX32_3GB = 0x0008 | ADDR_LIMIT_3GB, + PER_IRIX32 = 0x0009 | STICKY_TIMEOUTS,/* IRIX5 32-bit */ + PER_IRIXN32 = 0x000a | STICKY_TIMEOUTS,/* IRIX6 new 32-bit */ + PER_IRIX64 = 0x000b | STICKY_TIMEOUTS,/* IRIX6 64-bit */ + PER_RISCOS = 0x000c, + PER_SOLARIS = 0x000d | STICKY_TIMEOUTS, + PER_UW7 = 0x000e | STICKY_TIMEOUTS | MMAP_PAGE_ZERO, + PER_OSF4 = 0x000f, /* OSF/1 v4 */ + PER_HPUX = 0x0010, + PER_MASK = 0x00ff, +}; + +/* + * Return the base personality without flags. + */ +#define personality(pers) (pers & PER_MASK) + +/* this flag is uneffective under linux too, should be deleted */ +#ifndef MAP_DENYWRITE +#define MAP_DENYWRITE 0 +#endif + +/* should probably go in elf.h */ +#ifndef ELIBBAD +#define ELIBBAD 80 +#endif + +#ifndef ELF_PLATFORM +#define ELF_PLATFORM (NULL) +#endif + +#ifndef ELF_HWCAP +#define ELF_HWCAP 0 +#endif + +#ifdef TARGET_ABI32 +#undef ELF_CLASS +#define ELF_CLASS ELFCLASS32 +#undef bswaptls +#define bswaptls(ptr) bswap32s(ptr) +#endif + +struct exec +{ + unsigned int a_info; /* Use macros N_MAGIC, etc for access */ + unsigned int a_text; /* length of text, in bytes */ + unsigned int a_data; /* length of data, in bytes */ + unsigned int a_bss; /* length of uninitialized data area, in bytes */ + unsigned int a_syms; /* length of symbol table data in file, in bytes */ + unsigned int a_entry; /* start address */ + unsigned int a_trsize; /* length of relocation info for text, in bytes */ + unsigned int a_drsize; /* length of relocation info for data, in bytes */ +}; + + +#define N_MAGIC(exec) ((exec).a_info & 0xffff) +#define OMAGIC 0407 +#define NMAGIC 0410 +#define ZMAGIC 0413 +#define QMAGIC 0314 + +/* max code+data+bss space allocated to elf interpreter */ +#define INTERP_MAP_SIZE (32 * 1024 * 1024) + +/* max code+data+bss+brk space allocated to ET_DYN executables */ +#define ET_DYN_MAP_SIZE (128 * 1024 * 1024) + +/* Necessary parameters */ +#define TARGET_ELF_EXEC_PAGESIZE TARGET_PAGE_SIZE +#define TARGET_ELF_PAGESTART(_v) ((_v) & \ + ~(unsigned long)(TARGET_ELF_EXEC_PAGESIZE-1)) +#define TARGET_ELF_PAGEOFFSET(_v) ((_v) & (TARGET_ELF_EXEC_PAGESIZE-1)) + +#define INTERPRETER_NONE 0 +#define INTERPRETER_AOUT 1 +#define INTERPRETER_ELF 2 + +#define DLINFO_ITEMS 12 + +static abi_ulong target_create_elf_tables(abi_ulong p, int argc, int envc, + struct elfhdr * exec, + abi_ulong load_addr, + abi_ulong load_bias, + abi_ulong interp_load_addr, int ibcs, + struct image_info *info) +{ + abi_ulong sp; + int size; + abi_ulong u_platform; + const char *k_platform; + const int n = sizeof(elf_addr_t); + + sp = p; + u_platform = 0; + k_platform = ELF_PLATFORM; + if (k_platform) { + size_t len = strlen(k_platform) + 1; + sp -= (len + n - 1) & ~(n - 1); + u_platform = sp; + /* FIXME - check return value of memcpy_to_target() for failure */ + memcpy_to_target(sp, k_platform, len); + } + /* + * Force 16 byte _final_ alignment here for generality. + */ + sp = sp &~ (abi_ulong)15; + size = (DLINFO_ITEMS + 1) * 2; + if (k_platform) + size += 2; +#ifdef DLINFO_ARCH_ITEMS + size += DLINFO_ARCH_ITEMS * 2; +#endif + size += envc + argc + 2; + size += (!ibcs ? 3 : 1); /* argc itself */ + size *= n; + if (size & 15) + sp -= 16 - (size & 15); + + /* This is correct because Linux defines + * elf_addr_t as Elf32_Off / Elf64_Off + */ +#define NEW_AUX_ENT(id, val) do { \ + sp -= n; put_user_ual(val, sp); \ + sp -= n; put_user_ual(id, sp); \ + } while(0) + + NEW_AUX_ENT (AT_NULL, 0); + + /* There must be exactly DLINFO_ITEMS entries here. */ + NEW_AUX_ENT(AT_PHDR, (abi_ulong)(load_addr + exec->e_phoff)); + NEW_AUX_ENT(AT_PHENT, (abi_ulong)(sizeof (struct elf_phdr))); + NEW_AUX_ENT(AT_PHNUM, (abi_ulong)(exec->e_phnum)); + NEW_AUX_ENT(AT_PAGESZ, (abi_ulong)(TARGET_PAGE_SIZE)); + NEW_AUX_ENT(AT_BASE, (abi_ulong)(interp_load_addr)); + NEW_AUX_ENT(AT_FLAGS, (abi_ulong)0); + NEW_AUX_ENT(AT_ENTRY, load_bias + exec->e_entry); + NEW_AUX_ENT(AT_UID, (abi_ulong) getuid()); + NEW_AUX_ENT(AT_EUID, (abi_ulong) geteuid()); + NEW_AUX_ENT(AT_GID, (abi_ulong) getgid()); + NEW_AUX_ENT(AT_EGID, (abi_ulong) getegid()); + NEW_AUX_ENT(AT_HWCAP, (abi_ulong) ELF_HWCAP); + NEW_AUX_ENT(AT_CLKTCK, (abi_ulong) sysconf(_SC_CLK_TCK)); + if (k_platform) + NEW_AUX_ENT(AT_PLATFORM, u_platform); +#ifdef ARCH_DLINFO + /* + * ARCH_DLINFO must come last so platform specific code can enforce + * special alignment requirements on the AUXV if necessary (eg. PPC). + */ + ARCH_DLINFO; +#endif +#undef NEW_AUX_ENT + + sp = loader_build_argptr(envc, argc, sp, p, !ibcs); + return sp; +} + +#endif /* _TARGET_OS_ELF_H_ */ diff --git a/bsd-user/openbsd/target_os_thread.h b/bsd-user/openbsd/target_os_thread.h new file mode 100644 index 0000000..519aad8 --- /dev/null +++ b/bsd-user/openbsd/target_os_thread.h @@ -0,0 +1,6 @@ +#ifndef _TARGET_OS_THREAD_H_ +#define _TARGET_OS_THREAD_H_ + +#include "target_arch_thread.h" + +#endif /* !_TARGET_OS_THREAD_H_ */ diff --git a/bsd-user/sparc/target_arch_elf.h b/bsd-user/sparc/target_arch_elf.h new file mode 100644 index 0000000..b93e2ed --- /dev/null +++ b/bsd-user/sparc/target_arch_elf.h @@ -0,0 +1,30 @@ +/* + * sparc ELF definitions + * + * Copyright (c) 2013 Stacey D. Son + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see . + */ +#ifndef _TARGET_ARCH_ELF_H_ +#define _TARGET_ARCH_ELF_H_ + +#define ELF_START_MMAP 0x80000000 + +#define elf_check_arch(x) ( (x) == EM_SPARC ) + +#define ELF_CLASS ELFCLASS32 +#define ELF_DATA ELFDATA2MSB +#define ELF_ARCH EM_SPARC + +#endif /* _TARGET_ARCH_ELF_H_ */ diff --git a/bsd-user/sparc/target_arch_thread.h b/bsd-user/sparc/target_arch_thread.h new file mode 100644 index 0000000..fe607be --- /dev/null +++ b/bsd-user/sparc/target_arch_thread.h @@ -0,0 +1,39 @@ +/* + * sparc thread support + * + * Copyright (c) 2013 Stacey D. Son + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see . + */ +#ifndef _TARGET_ARCH_THREAD_H_ +#define _TARGET_ARCH_THREAD_H_ + +/* Compare to vm_machdep.c cpu_set_upcall_kse() */ +static inline void target_thread_set_upcall(CPUSPARCState *regs, + abi_ulong entry, abi_ulong arg, abi_ulong stack_base, abi_ulong stack_size) +{ + /* XXX */ +} + +static inline void target_thread_init(struct target_pt_regs *regs, + struct image_info *infop) +{ + regs->psr = 0; + regs->pc = infop->entry; + regs->npc = regs->pc + 4; + regs->y = 0; + regs->u_regs[14] = infop->start_stack - 16 * 4; +} + +#endif /* !_TARGET_ARCH_THREAD_H_ */ diff --git a/bsd-user/sparc64/target_arch_elf.h b/bsd-user/sparc64/target_arch_elf.h new file mode 100644 index 0000000..f2b8e12 --- /dev/null +++ b/bsd-user/sparc64/target_arch_elf.h @@ -0,0 +1,34 @@ +/* + * sparc64 ELF definitions + * + * Copyright (c) 2013 Stacey D. Son + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see . + */ +#ifndef _TARGET_ARCH_ELF_H_ +#define _TARGET_ARCH_ELF_H_ + +#define ELF_START_MMAP 0x80000000 + +#ifndef TARGET_ABI32 +#define elf_check_arch(x) ( (x) == EM_SPARCV9 || (x) == EM_SPARC32PLUS ) +#else +#define elf_check_arch(x) ( (x) == EM_SPARC32PLUS || (x) == EM_SPARC ) +#endif + +#define ELF_CLASS ELFCLASS64 +#define ELF_DATA ELFDATA2MSB +#define ELF_ARCH EM_SPARCV9 + +#endif /* _TARGET_ARCH_ELF_H_ */ diff --git a/bsd-user/sparc64/target_arch_thread.h b/bsd-user/sparc64/target_arch_thread.h new file mode 100644 index 0000000..2e5585a --- /dev/null +++ b/bsd-user/sparc64/target_arch_thread.h @@ -0,0 +1,55 @@ +/* + * sparc64 thread support + * + * Copyright (c) 2013 Stacey D. Son + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see . + */ +#ifndef _TARGET_ARCH_THREAD_H_ +#define _TARGET_ARCH_THREAD_H_ + +#define STACK_BIAS 2047 + +/* Compare to vm_machdep.c cpu_set_upcall_kse() */ +static inline void target_thread_set_upcall(CPUSPARCState *regs, + abi_ulong entry, abi_ulong arg, abi_ulong stack_base, abi_ulong stack_size) +{ + /* XXX */ +} + +static inline void target_thread_init(struct target_pt_regs *regs, + struct image_info *infop) +{ +#ifndef TARGET_ABI32 + regs->tstate = 0; +#endif + regs->pc = infop->entry; + regs->npc = regs->pc + 4; + regs->y = 0; +#ifdef TARGET_ABI32 + regs->u_regs[14] = infop->start_stack - 16 * 4; +#else + if (personality(infop->personality) == PER_LINUX32) + regs->u_regs[14] = infop->start_stack - 16 * 4; + else { + regs->u_regs[14] = infop->start_stack - 16 * 8 - STACK_BIAS; + if (bsd_type == target_freebsd) { + regs->u_regs[8] = infop->start_stack; + regs->u_regs[11] = infop->start_stack; + } + } +#endif +} + +#endif /* !_TARGET_ARCH_THREAD_H_ */ diff --git a/bsd-user/syscall_defs.h b/bsd-user/syscall_defs.h index ad84d33..13678d4 100644 --- a/bsd-user/syscall_defs.h +++ b/bsd-user/syscall_defs.h @@ -703,4 +703,68 @@ struct target_uuid { uint8_t node[TARGET_UUID_NODE_LEN]; }; + +/* + * from personality.h + */ + +/* + * Flags for bug emulation. + * + * These occupy the top three bytes. + */ +enum { + ADDR_NO_RANDOMIZE = 0x0040000, /* disable randomization of VA + space */ + FDPIC_FUNCPTRS = 0x0080000, /* userspace function ptrs + point to descriptors + (signal handling) */ + MMAP_PAGE_ZERO = 0x0100000, + ADDR_COMPAT_LAYOUT = 0x0200000, + READ_IMPLIES_EXEC = 0x0400000, + ADDR_LIMIT_32BIT = 0x0800000, + SHORT_INODE = 0x1000000, + WHOLE_SECONDS = 0x2000000, + STICKY_TIMEOUTS = 0x4000000, + ADDR_LIMIT_3GB = 0x8000000, +}; + +/* + * Personality types. + * + * These go in the low byte. Avoid using the top bit, it will + * conflict with error returns. + */ +enum { + PER_LINUX = 0x0000, + PER_LINUX_32BIT = 0x0000 | ADDR_LIMIT_32BIT, + PER_LINUX_FDPIC = 0x0000 | FDPIC_FUNCPTRS, + PER_SVR4 = 0x0001 | STICKY_TIMEOUTS | MMAP_PAGE_ZERO, + PER_SVR3 = 0x0002 | STICKY_TIMEOUTS | SHORT_INODE, + PER_SCOSVR3 = 0x0003 | STICKY_TIMEOUTS | + WHOLE_SECONDS | SHORT_INODE, + PER_OSR5 = 0x0003 | STICKY_TIMEOUTS | WHOLE_SECONDS, + PER_WYSEV386 = 0x0004 | STICKY_TIMEOUTS | SHORT_INODE, + PER_ISCR4 = 0x0005 | STICKY_TIMEOUTS, + PER_BSD = 0x0006, + PER_SUNOS = 0x0006 | STICKY_TIMEOUTS, + PER_XENIX = 0x0007 | STICKY_TIMEOUTS | SHORT_INODE, + PER_LINUX32 = 0x0008, + PER_LINUX32_3GB = 0x0008 | ADDR_LIMIT_3GB, + PER_IRIX32 = 0x0009 | STICKY_TIMEOUTS,/* IRIX5 32-bit */ + PER_IRIXN32 = 0x000a | STICKY_TIMEOUTS,/* IRIX6 new 32-bit */ + PER_IRIX64 = 0x000b | STICKY_TIMEOUTS,/* IRIX6 64-bit */ + PER_RISCOS = 0x000c, + PER_SOLARIS = 0x000d | STICKY_TIMEOUTS, + PER_UW7 = 0x000e | STICKY_TIMEOUTS | MMAP_PAGE_ZERO, + PER_OSF4 = 0x000f, /* OSF/1 v4 */ + PER_HPUX = 0x0010, + PER_MASK = 0x00ff, +}; + +/* + * Return the base personality without flags. + */ +#define personality(pers) (pers & PER_MASK) + #endif /* ! _SYSCALL_DEFS_H_ */ diff --git a/bsd-user/x86_64/target_arch_elf.h b/bsd-user/x86_64/target_arch_elf.h new file mode 100644 index 0000000..bc7c6a1 --- /dev/null +++ b/bsd-user/x86_64/target_arch_elf.h @@ -0,0 +1,55 @@ +/* + * x86_64 ELF definitions + * + * Copyright (c) 2013 Stacey D. Son + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see . + */ +#ifndef _TARGET_ARCH_ELF_H_ +#define _TARGET_ARCH_ELF_H_ + +#define ELF_START_MMAP 0x2aaaaab000ULL +#define elf_check_arch(x) ( ((x) == ELF_ARCH) ) + +#define ELF_CLASS ELFCLASS64 +#define ELF_DATA ELFDATA2LSB +#define ELF_ARCH EM_X86_64 + +#define USE_ELF_CORE_DUMP +#define ELF_EXEC_PAGESIZE 4096 + +/* XXX */ +#ifndef __FreeBSD__ +#define ELF_PLATFORM target_elf_get_platform() + +static const char *target_elf_get_platform(void) +{ + static char elf_platform[] = "i386"; + int family = (thread_env->cpuid_version >> 8) & 0xff; + if (family > 6) + family = 6; + if (family >= 3) + elf_platform[1] = '0' + family; + return elf_platform; +} + +#define ELF_HWCAP target_elf_get_hwcap() + +static uint32_t target_elf_get_hwcap(void) +{ + return thread_env->features[FEAT_1_EDX]; +} +#endif /* ! __FreeBSD__ */ + +#endif /* _TARGET_ARCH_ELF_H_ */ diff --git a/bsd-user/x86_64/target_arch_thread.h b/bsd-user/x86_64/target_arch_thread.h new file mode 100644 index 0000000..d105e43 --- /dev/null +++ b/bsd-user/x86_64/target_arch_thread.h @@ -0,0 +1,40 @@ +/* + * x86_64 thread support + * + * Copyright (c) 2013 Stacey D. Son + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see . + */ +#ifndef _TARGET_ARCH_THREAD_H_ +#define _TARGET_ARCH_THREAD_H_ + +/* Compare to vm_machdep.c cpu_set_upcall_kse() */ +static inline void target_thread_set_upcall(CPUX86State *regs, abi_ulong entry, + abi_ulong arg, abi_ulong stack_base, abi_ulong stack_size) +{ + /* XXX */ +} + +static inline void target_thread_init(struct target_pt_regs *regs, + struct image_info *infop) +{ + regs->rax = 0; + regs->rsp = infop->start_stack; + regs->rip = infop->entry; + if (bsd_type == target_freebsd) { + regs->rdi = infop->start_stack; + } +} + +#endif /* !_TARGET_ARCH_THREAD_H_ */ -- 1.7.8