#ifndef QEMU_H
#define QEMU_H
-#include "thunk.h"
-
#include <signal.h>
#include <string.h>
-#include "syscall_defs.h"
#include "cpu.h"
+
+#undef DEBUG_REMAP
+#ifdef DEBUG_REMAP
+#include <stdlib.h>
+#endif /* DEBUG_REMAP */
+
+#include "qemu-types.h"
+
+#include "thunk.h"
+#include "syscall_defs.h"
#include "syscall.h"
#include "target_signal.h"
#include "gdbstub.h"
+#include "qemu-queue.h"
+
+#if defined(CONFIG_USE_NPTL)
+#define THREAD __thread
+#else
+#define THREAD
+#endif
/* 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 {
- target_ulong load_addr;
- unsigned long start_code;
- unsigned long end_code;
- unsigned long start_data;
- unsigned long end_data;
- unsigned long start_brk;
- unsigned long brk;
- unsigned long start_mmap;
- unsigned long mmap;
- unsigned long rss;
- unsigned long start_stack;
- unsigned long entry;
- target_ulong code_offset;
- target_ulong data_offset;
- char **host_argv;
+ 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 mmap;
+ abi_ulong rss;
+ 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 arg_start;
+ abi_ulong arg_end;
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
#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 {
- struct TaskState *next;
+ pid_t ts_tid; /* tid (or pid) of this task */
#ifdef TARGET_ARM
/* FPA state */
FPA11 fpa;
int swi_errno;
#endif
+#ifdef TARGET_UNICORE32
+ int swi_errno;
+#endif
#if defined(TARGET_I386) && !defined(TARGET_X86_64)
- target_ulong target_v86;
+ abi_ulong target_v86;
struct vm86_saved_state vm86_saved_regs;
struct target_vm86plus_struct vm86plus;
uint32_t v86flags;
uint32_t v86mask;
#endif
+#ifdef CONFIG_USE_NPTL
+ abi_ulong child_tidptr;
+#endif
#ifdef TARGET_M68K
int sim_syscalls;
#endif
-#if defined(TARGET_ARM) || defined(TARGET_M68K)
+#if defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_UNICORE32)
/* Extra fields for semihosted binaries. */
uint32_t stack_base;
uint32_t heap_base;
#endif
int used; /* non zero if used */
struct image_info *info;
- uint8_t stack[0];
+ 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 TaskState *first_task_state;
+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. */
/*
* and envelope for the new program. 32 should suffice, this gives
* a maximum env+arg of 128kB w/4KB pages!
*/
-#define MAX_ARG_PAGES 32
+#define MAX_ARG_PAGES 33
+
+/* 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[128];
+ char buf[BPRM_BUF_SIZE] __attribute__((aligned));
void *page[MAX_ARG_PAGES];
- unsigned long p;
+ 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 CPUState *); /* coredump routine */
};
void do_init_thread(struct target_pt_regs *regs, struct image_info *infop);
-target_ulong loader_build_argptr(int envc, int argc, target_ulong sp,
- target_ulong stringp, int push_ptr);
+abi_ulong loader_build_argptr(int envc, int argc, abi_ulong sp,
+ abi_ulong stringp, int push_ptr);
int loader_exec(const char * filename, char ** argv, char ** envp,
- struct target_pt_regs * regs, struct image_info *infop);
+ struct target_pt_regs * regs, struct image_info *infop,
+ struct linux_binprm *);
int load_elf_binary(struct linux_binprm * bprm, struct target_pt_regs * regs,
struct image_info * info);
int load_flt_binary(struct linux_binprm * bprm, struct target_pt_regs * regs,
struct image_info * info);
-void memcpy_to_target(target_ulong dest, const void *src,
- unsigned long len);
-void target_set_brk(target_ulong new_brk);
-target_long do_brk(target_ulong new_brk);
+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);
-target_long do_syscall(void *cpu_env, int num, target_long arg1,
- target_long arg2, target_long arg3, target_long arg4,
- target_long arg5, target_long arg6);
-void gemu_log(const char *fmt, ...) __attribute__((format(printf,1,2)));
-extern CPUState *global_env;
+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_env;
void cpu_loop(CPUState *env);
-void init_paths(const char *prefix);
-const char *path(const char *pathname);
+char *target_strerror(int err);
+int get_osversion(void);
+void fork_start(void);
+void fork_end(int child);
-extern int loglevel;
-extern FILE *logfile;
+#include "qemu-log.h"
+
+/* 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(void *cpu_env);
+void process_pending_signals(CPUState *cpu_env);
void signal_init(void);
-int queue_signal(int sig, target_siginfo_t *info);
+int queue_signal(CPUState *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(CPUState *env);
long do_rt_sigreturn(CPUState *env);
-int do_sigaltstack(const struct target_sigaltstack *uss,
- struct target_sigaltstack *uoss,
- target_ulong sp);
+abi_long do_sigaltstack(abi_ulong uss_addr, abi_ulong uoss_addr, abi_ulong sp);
#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, target_ulong v86_addr);
+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(target_ulong start, target_ulong len, int prot);
-target_long target_mmap(target_ulong start, target_ulong len, int prot,
- int flags, int fd, target_ulong offset);
-int target_munmap(target_ulong start, target_ulong len);
-target_long target_mremap(target_ulong old_addr, target_ulong old_size,
- target_ulong new_size, unsigned long flags,
- target_ulong new_addr);
-int target_msync(target_ulong start, target_ulong len, int flags);
+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;
+void mmap_lock(void);
+void mmap_unlock(void);
+abi_ulong mmap_find_vma(abi_ulong, abi_ulong);
+void cpu_list_lock(void);
+void cpu_list_unlock(void);
+#if defined(CONFIG_USE_NPTL)
+void mmap_fork_start(void);
+void mmap_fork_end(int child);
+#endif
+
+/* main.c */
+extern unsigned long guest_stack_size;
/* user access */
#define VERIFY_READ 0
-#define VERIFY_WRITE 1
+#define VERIFY_WRITE 1 /* implies read access */
-#define access_ok(type,addr,size) (1)
+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 addresses. */
-#define __put_user(x,ptr)\
+/* 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().
+ */
+#define __put_user(x, hptr)\
({\
- int size = sizeof(*ptr);\
- switch(size) {\
+ switch(sizeof(*hptr)) {\
case 1:\
- *(uint8_t *)(ptr) = (typeof(*ptr))(x);\
+ *(uint8_t *)(hptr) = (uint8_t)(typeof(*hptr))(x);\
break;\
case 2:\
- *(uint16_t *)(ptr) = tswap16((typeof(*ptr))(x));\
+ *(uint16_t *)(hptr) = tswap16((uint16_t)(typeof(*hptr))(x));\
break;\
case 4:\
- *(uint32_t *)(ptr) = tswap32((typeof(*ptr))(x));\
+ *(uint32_t *)(hptr) = tswap32((uint32_t)(typeof(*hptr))(x));\
break;\
case 8:\
- *(uint64_t *)(ptr) = tswap64((typeof(*ptr))(x));\
+ *(uint64_t *)(hptr) = tswap64((typeof(*hptr))(x));\
break;\
default:\
abort();\
0;\
})
-#define __get_user(x, ptr) \
+#define __get_user(x, hptr) \
({\
- int size = sizeof(*ptr);\
- switch(size) {\
+ switch(sizeof(*hptr)) {\
case 1:\
- x = (typeof(*ptr))*(uint8_t *)(ptr);\
+ x = (typeof(*hptr))*(uint8_t *)(hptr);\
break;\
case 2:\
- x = (typeof(*ptr))tswap16(*(uint16_t *)(ptr));\
+ x = (typeof(*hptr))tswap16(*(uint16_t *)(hptr));\
break;\
case 4:\
- x = (typeof(*ptr))tswap32(*(uint32_t *)(ptr));\
+ x = (typeof(*hptr))tswap32(*(uint32_t *)(hptr));\
break;\
case 8:\
- x = (typeof(*ptr))tswap64(*(uint64_t *)(ptr));\
+ x = (typeof(*hptr))tswap64(*(uint64_t *)(hptr));\
break;\
default:\
+ /* avoid warning */\
+ x = 0;\
abort();\
}\
0;\
})
-#define put_user(x,ptr)\
-({\
- int __ret;\
- if (access_ok(VERIFY_WRITE, ptr, sizeof(*ptr)))\
- __ret = __put_user(x, ptr);\
- else\
- __ret = -EFAULT;\
- __ret;\
+/* 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; \
+ if ((__hptr = lock_user(VERIFY_WRITE, __gaddr, sizeof(target_type), 0))) { \
+ __ret = __put_user((x), __hptr); \
+ unlock_user(__hptr, __gaddr, sizeof(target_type)); \
+ } else \
+ __ret = -TARGET_EFAULT; \
+ __ret; \
})
-#define get_user(x,ptr)\
-({\
- int __ret;\
- if (access_ok(VERIFY_READ, ptr, sizeof(*ptr)))\
- __ret = __get_user(x, ptr);\
- else\
- __ret = -EFAULT;\
- __ret;\
+#define get_user(x, gaddr, target_type) \
+({ \
+ abi_ulong __gaddr = (gaddr); \
+ target_type *__hptr; \
+ abi_long __ret; \
+ if ((__hptr = lock_user(VERIFY_READ, __gaddr, sizeof(target_type), 1))) { \
+ __ret = __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 neccessary. The lock_user
+ read/write single values, byteswapping as necessary. The lock_user
gets a pointer to a contiguous area of guest memory, but does not perform
and 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(target_ulong guest_addr, long len, int copy)
+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;
+ {
+ 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. */
-static inline void unlock_user(void *host_addr, target_ulong guest_addr,
- long len)
+/* 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_addr == g2h(guest_addr))
+ if (!host_ptr)
+ return;
+ if (host_ptr == g2h(guest_addr))
return;
if (len > 0)
- memcpy(g2h(guest_addr), host_addr, len);
- free(host_addr);
+ memcpy(g2h(guest_addr), host_ptr, len);
+ free(host_ptr);
#endif
}
-/* Return the length of a string in target memory. */
-static inline int target_strlen(target_ulong ptr)
-{
- return strlen(g2h(ptr));
-}
+/* 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(target_ulong guest_addr)
+static inline void *lock_user_string(abi_ulong guest_addr)
{
- long len;
- len = target_strlen(guest_addr) + 1;
- return lock_user(guest_addr, len, 1);
+ 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/ulocking a target struct. */
-#define lock_user_struct(host_ptr, guest_addr, copy) \
- host_ptr = lock_user(guest_addr, sizeof(*host_ptr), copy)
-#define unlock_user_struct(host_ptr, guest_addr, copy) \
+#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)
-#define tget8(addr) ldub(addr)
-#define tput8(addr, val) stb(addr, val)
-#define tget16(addr) lduw(addr)
-#define tput16(addr, val) stw(addr, val)
-#define tget32(addr) ldl(addr)
-#define tput32(addr, val) stl(addr, val)
-#define tget64(addr) ldq(addr)
-#define tput64(addr, val) stq(addr, val)
-#if TARGET_LONG_BITS == 64
-#define tgetl(addr) ldq(addr)
-#define tputl(addr, val) stq(addr, val)
-#else
-#define tgetl(addr) ldl(addr)
-#define tputl(addr, val) stl(addr, val)
+#if defined(CONFIG_USE_NPTL)
+#include <pthread.h>
#endif
#endif /* QEMU_H */
projects / qemu.git / blobdiff