diff options
Diffstat (limited to 'qemu/linux-user/qemu.h')
-rw-r--r-- | qemu/linux-user/qemu.h | 444 |
1 files changed, 0 insertions, 444 deletions
diff --git a/qemu/linux-user/qemu.h b/qemu/linux-user/qemu.h deleted file mode 100644 index 26b0ba273..000000000 --- a/qemu/linux-user/qemu.h +++ /dev/null @@ -1,444 +0,0 @@ -#ifndef QEMU_H -#define QEMU_H - - -#include "cpu.h" -#include "exec/cpu_ldst.h" - -#undef DEBUG_REMAP -#ifdef DEBUG_REMAP -#endif /* DEBUG_REMAP */ - -#include "exec/user/abitypes.h" - -#include "exec/user/thunk.h" -#include "syscall_defs.h" -#include "target_syscall.h" -#include "exec/gdbstub.h" -#include "qemu/queue.h" - -#define THREAD __thread - -/* This struct is used to hold certain information about the image. - * Basically, it replicates in user space what would be certain - * task_struct fields in the kernel - */ -struct image_info { - abi_ulong load_bias; - abi_ulong load_addr; - abi_ulong start_code; - abi_ulong end_code; - abi_ulong start_data; - abi_ulong end_data; - abi_ulong start_brk; - abi_ulong brk; - abi_ulong start_mmap; - abi_ulong start_stack; - abi_ulong stack_limit; - abi_ulong entry; - abi_ulong code_offset; - abi_ulong data_offset; - abi_ulong saved_auxv; - abi_ulong auxv_len; - abi_ulong arg_start; - abi_ulong arg_end; - uint32_t elf_flags; - int personality; -#ifdef CONFIG_USE_FDPIC - abi_ulong loadmap_addr; - uint16_t nsegs; - void *loadsegs; - abi_ulong pt_dynamic_addr; - struct image_info *other_info; -#endif -}; - -#ifdef TARGET_I386 -/* Information about the current linux thread */ -struct vm86_saved_state { - uint32_t eax; /* return code */ - uint32_t ebx; - uint32_t ecx; - uint32_t edx; - uint32_t esi; - uint32_t edi; - uint32_t ebp; - uint32_t esp; - uint32_t eflags; - uint32_t eip; - uint16_t cs, ss, ds, es, fs, gs; -}; -#endif - -#if defined(TARGET_ARM) && defined(TARGET_ABI32) -/* FPU emulator */ -#include "nwfpe/fpa11.h" -#endif - -#define MAX_SIGQUEUE_SIZE 1024 - -struct sigqueue { - struct sigqueue *next; - target_siginfo_t info; -}; - -struct emulated_sigtable { - int pending; /* true if signal is pending */ - struct sigqueue *first; - struct sigqueue info; /* in order to always have memory for the - first signal, we put it here */ -}; - -/* NOTE: we force a big alignment so that the stack stored after is - aligned too */ -typedef struct TaskState { - pid_t ts_tid; /* tid (or pid) of this task */ -#ifdef TARGET_ARM -# ifdef TARGET_ABI32 - /* FPA state */ - FPA11 fpa; -# endif - int swi_errno; -#endif -#ifdef TARGET_UNICORE32 - int swi_errno; -#endif -#if defined(TARGET_I386) && !defined(TARGET_X86_64) - abi_ulong target_v86; - struct vm86_saved_state vm86_saved_regs; - struct target_vm86plus_struct vm86plus; - uint32_t v86flags; - uint32_t v86mask; -#endif - abi_ulong child_tidptr; -#ifdef TARGET_M68K - int sim_syscalls; - abi_ulong tp_value; -#endif -#if defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_UNICORE32) - /* Extra fields for semihosted binaries. */ - uint32_t heap_base; - uint32_t heap_limit; -#endif - uint32_t stack_base; - int used; /* non zero if used */ - bool sigsegv_blocked; /* SIGSEGV blocked by guest */ - struct image_info *info; - struct linux_binprm *bprm; - - struct emulated_sigtable sigtab[TARGET_NSIG]; - struct sigqueue sigqueue_table[MAX_SIGQUEUE_SIZE]; /* siginfo queue */ - struct sigqueue *first_free; /* first free siginfo queue entry */ - int signal_pending; /* non zero if a signal may be pending */ -} __attribute__((aligned(16))) TaskState; - -extern char *exec_path; -void init_task_state(TaskState *ts); -void task_settid(TaskState *); -void stop_all_tasks(void); -extern const char *qemu_uname_release; -extern unsigned long mmap_min_addr; - -/* ??? See if we can avoid exposing so much of the loader internals. */ - -/* Read a good amount of data initially, to hopefully get all the - program headers loaded. */ -#define BPRM_BUF_SIZE 1024 - -/* - * This structure is used to hold the arguments that are - * used when loading binaries. - */ -struct linux_binprm { - char buf[BPRM_BUF_SIZE] __attribute__((aligned)); - abi_ulong p; - int fd; - int e_uid, e_gid; - int argc, envc; - char **argv; - char **envp; - char * filename; /* Name of binary */ - int (*core_dump)(int, const CPUArchState *); /* coredump routine */ -}; - -void do_init_thread(struct target_pt_regs *regs, struct image_info *infop); -abi_ulong loader_build_argptr(int envc, int argc, abi_ulong sp, - abi_ulong stringp, int push_ptr); -int loader_exec(int fdexec, const char *filename, char **argv, char **envp, - struct target_pt_regs * regs, struct image_info *infop, - struct linux_binprm *); - -int load_elf_binary(struct linux_binprm *bprm, struct image_info *info); -int load_flt_binary(struct linux_binprm *bprm, struct image_info *info); - -abi_long memcpy_to_target(abi_ulong dest, const void *src, - unsigned long len); -void target_set_brk(abi_ulong new_brk); -abi_long do_brk(abi_ulong new_brk); -void syscall_init(void); -abi_long do_syscall(void *cpu_env, int num, abi_long arg1, - abi_long arg2, abi_long arg3, abi_long arg4, - abi_long arg5, abi_long arg6, abi_long arg7, - abi_long arg8); -void gemu_log(const char *fmt, ...) GCC_FMT_ATTR(1, 2); -extern THREAD CPUState *thread_cpu; -void cpu_loop(CPUArchState *env); -char *target_strerror(int err); -int get_osversion(void); -void init_qemu_uname_release(void); -void fork_start(void); -void fork_end(int child); - -/* Creates the initial guest address space in the host memory space using - * the given host start address hint and size. The guest_start parameter - * specifies the start address of the guest space. guest_base will be the - * difference between the host start address computed by this function and - * guest_start. If fixed is specified, then the mapped address space must - * start at host_start. The real start address of the mapped memory space is - * returned or -1 if there was an error. - */ -unsigned long init_guest_space(unsigned long host_start, - unsigned long host_size, - unsigned long guest_start, - bool fixed); - -#include "qemu/log.h" - -/* syscall.c */ -int host_to_target_waitstatus(int status); - -/* strace.c */ -void print_syscall(int num, - abi_long arg1, abi_long arg2, abi_long arg3, - abi_long arg4, abi_long arg5, abi_long arg6); -void print_syscall_ret(int num, abi_long arg1); -extern int do_strace; - -/* signal.c */ -void process_pending_signals(CPUArchState *cpu_env); -void signal_init(void); -int queue_signal(CPUArchState *env, int sig, target_siginfo_t *info); -void host_to_target_siginfo(target_siginfo_t *tinfo, const siginfo_t *info); -void target_to_host_siginfo(siginfo_t *info, const target_siginfo_t *tinfo); -int target_to_host_signal(int sig); -int host_to_target_signal(int sig); -long do_sigreturn(CPUArchState *env); -long do_rt_sigreturn(CPUArchState *env); -abi_long do_sigaltstack(abi_ulong uss_addr, abi_ulong uoss_addr, abi_ulong sp); -int do_sigprocmask(int how, const sigset_t *set, sigset_t *oldset); - -#ifdef TARGET_I386 -/* vm86.c */ -void save_v86_state(CPUX86State *env); -void handle_vm86_trap(CPUX86State *env, int trapno); -void handle_vm86_fault(CPUX86State *env); -int do_vm86(CPUX86State *env, long subfunction, abi_ulong v86_addr); -#elif defined(TARGET_SPARC64) -void sparc64_set_context(CPUSPARCState *env); -void sparc64_get_context(CPUSPARCState *env); -#endif - -/* mmap.c */ -int target_mprotect(abi_ulong start, abi_ulong len, int prot); -abi_long target_mmap(abi_ulong start, abi_ulong len, int prot, - int flags, int fd, abi_ulong offset); -int target_munmap(abi_ulong start, abi_ulong len); -abi_long target_mremap(abi_ulong old_addr, abi_ulong old_size, - abi_ulong new_size, unsigned long flags, - abi_ulong new_addr); -int target_msync(abi_ulong start, abi_ulong len, int flags); -extern unsigned long last_brk; -extern abi_ulong mmap_next_start; -abi_ulong mmap_find_vma(abi_ulong, abi_ulong); -void cpu_list_lock(void); -void cpu_list_unlock(void); -void mmap_fork_start(void); -void mmap_fork_end(int child); - -/* main.c */ -extern unsigned long guest_stack_size; - -/* user access */ - -#define VERIFY_READ 0 -#define VERIFY_WRITE 1 /* implies read access */ - -static inline int access_ok(int type, abi_ulong addr, abi_ulong size) -{ - return page_check_range((target_ulong)addr, size, - (type == VERIFY_READ) ? PAGE_READ : (PAGE_READ | PAGE_WRITE)) == 0; -} - -/* NOTE __get_user and __put_user use host pointers and don't check access. - These are usually used to access struct data members once the struct has - been locked - usually with lock_user_struct. */ - -/* Tricky points: - - Use __builtin_choose_expr to avoid type promotion from ?:, - - Invalid sizes result in a compile time error stemming from - the fact that abort has no parameters. - - It's easier to use the endian-specific unaligned load/store - functions than host-endian unaligned load/store plus tswapN. */ - -#define __put_user_e(x, hptr, e) \ - (__builtin_choose_expr(sizeof(*(hptr)) == 1, stb_p, \ - __builtin_choose_expr(sizeof(*(hptr)) == 2, stw_##e##_p, \ - __builtin_choose_expr(sizeof(*(hptr)) == 4, stl_##e##_p, \ - __builtin_choose_expr(sizeof(*(hptr)) == 8, stq_##e##_p, abort)))) \ - ((hptr), (x)), (void)0) - -#define __get_user_e(x, hptr, e) \ - ((x) = (typeof(*hptr))( \ - __builtin_choose_expr(sizeof(*(hptr)) == 1, ldub_p, \ - __builtin_choose_expr(sizeof(*(hptr)) == 2, lduw_##e##_p, \ - __builtin_choose_expr(sizeof(*(hptr)) == 4, ldl_##e##_p, \ - __builtin_choose_expr(sizeof(*(hptr)) == 8, ldq_##e##_p, abort)))) \ - (hptr)), (void)0) - -#ifdef TARGET_WORDS_BIGENDIAN -# define __put_user(x, hptr) __put_user_e(x, hptr, be) -# define __get_user(x, hptr) __get_user_e(x, hptr, be) -#else -# define __put_user(x, hptr) __put_user_e(x, hptr, le) -# define __get_user(x, hptr) __get_user_e(x, hptr, le) -#endif - -/* put_user()/get_user() take a guest address and check access */ -/* These are usually used to access an atomic data type, such as an int, - * that has been passed by address. These internally perform locking - * and unlocking on the data type. - */ -#define put_user(x, gaddr, target_type) \ -({ \ - abi_ulong __gaddr = (gaddr); \ - target_type *__hptr; \ - abi_long __ret = 0; \ - if ((__hptr = lock_user(VERIFY_WRITE, __gaddr, sizeof(target_type), 0))) { \ - __put_user((x), __hptr); \ - unlock_user(__hptr, __gaddr, sizeof(target_type)); \ - } else \ - __ret = -TARGET_EFAULT; \ - __ret; \ -}) - -#define get_user(x, gaddr, target_type) \ -({ \ - abi_ulong __gaddr = (gaddr); \ - target_type *__hptr; \ - abi_long __ret = 0; \ - if ((__hptr = lock_user(VERIFY_READ, __gaddr, sizeof(target_type), 1))) { \ - __get_user((x), __hptr); \ - unlock_user(__hptr, __gaddr, 0); \ - } else { \ - /* avoid warning */ \ - (x) = 0; \ - __ret = -TARGET_EFAULT; \ - } \ - __ret; \ -}) - -#define put_user_ual(x, gaddr) put_user((x), (gaddr), abi_ulong) -#define put_user_sal(x, gaddr) put_user((x), (gaddr), abi_long) -#define put_user_u64(x, gaddr) put_user((x), (gaddr), uint64_t) -#define put_user_s64(x, gaddr) put_user((x), (gaddr), int64_t) -#define put_user_u32(x, gaddr) put_user((x), (gaddr), uint32_t) -#define put_user_s32(x, gaddr) put_user((x), (gaddr), int32_t) -#define put_user_u16(x, gaddr) put_user((x), (gaddr), uint16_t) -#define put_user_s16(x, gaddr) put_user((x), (gaddr), int16_t) -#define put_user_u8(x, gaddr) put_user((x), (gaddr), uint8_t) -#define put_user_s8(x, gaddr) put_user((x), (gaddr), int8_t) - -#define get_user_ual(x, gaddr) get_user((x), (gaddr), abi_ulong) -#define get_user_sal(x, gaddr) get_user((x), (gaddr), abi_long) -#define get_user_u64(x, gaddr) get_user((x), (gaddr), uint64_t) -#define get_user_s64(x, gaddr) get_user((x), (gaddr), int64_t) -#define get_user_u32(x, gaddr) get_user((x), (gaddr), uint32_t) -#define get_user_s32(x, gaddr) get_user((x), (gaddr), int32_t) -#define get_user_u16(x, gaddr) get_user((x), (gaddr), uint16_t) -#define get_user_s16(x, gaddr) get_user((x), (gaddr), int16_t) -#define get_user_u8(x, gaddr) get_user((x), (gaddr), uint8_t) -#define get_user_s8(x, gaddr) get_user((x), (gaddr), int8_t) - -/* copy_from_user() and copy_to_user() are usually used to copy data - * buffers between the target and host. These internally perform - * locking/unlocking of the memory. - */ -abi_long copy_from_user(void *hptr, abi_ulong gaddr, size_t len); -abi_long copy_to_user(abi_ulong gaddr, void *hptr, size_t len); - -/* Functions for accessing guest memory. The tget and tput functions - read/write single values, byteswapping as necessary. The lock_user function - gets a pointer to a contiguous area of guest memory, but does not perform - any byteswapping. lock_user may return either a pointer to the guest - memory, or a temporary buffer. */ - -/* Lock an area of guest memory into the host. If copy is true then the - host area will have the same contents as the guest. */ -static inline void *lock_user(int type, abi_ulong guest_addr, long len, int copy) -{ - if (!access_ok(type, guest_addr, len)) - return NULL; -#ifdef DEBUG_REMAP - { - void *addr; - addr = malloc(len); - if (copy) - memcpy(addr, g2h(guest_addr), len); - else - memset(addr, 0, len); - return addr; - } -#else - return g2h(guest_addr); -#endif -} - -/* Unlock an area of guest memory. The first LEN bytes must be - flushed back to guest memory. host_ptr = NULL is explicitly - allowed and does nothing. */ -static inline void unlock_user(void *host_ptr, abi_ulong guest_addr, - long len) -{ - -#ifdef DEBUG_REMAP - if (!host_ptr) - return; - if (host_ptr == g2h(guest_addr)) - return; - if (len > 0) - memcpy(g2h(guest_addr), host_ptr, len); - free(host_ptr); -#endif -} - -/* Return the length of a string in target memory or -TARGET_EFAULT if - access error. */ -abi_long target_strlen(abi_ulong gaddr); - -/* Like lock_user but for null terminated strings. */ -static inline void *lock_user_string(abi_ulong guest_addr) -{ - abi_long len; - len = target_strlen(guest_addr); - if (len < 0) - return NULL; - return lock_user(VERIFY_READ, guest_addr, (long)(len + 1), 1); -} - -/* Helper macros for locking/unlocking a target struct. */ -#define lock_user_struct(type, host_ptr, guest_addr, copy) \ - (host_ptr = lock_user(type, guest_addr, sizeof(*host_ptr), copy)) -#define unlock_user_struct(host_ptr, guest_addr, copy) \ - unlock_user(host_ptr, guest_addr, (copy) ? sizeof(*host_ptr) : 0) - -#include <pthread.h> - -/* Include target-specific struct and function definitions; - * they may need access to the target-independent structures - * above, so include them last. - */ -#include "target_cpu.h" -#include "target_signal.h" -#include "target_structs.h" - -#endif /* QEMU_H */ |