#ifndef QEMU_H
#define QEMU_H
-#include "thunk.h"
-
#include <signal.h>
#include <string.h>
-#include "syscall_defs.h"
#include "cpu.h"
+
+#ifdef TARGET_ABI32
+typedef uint32_t abi_ulong;
+typedef int32_t abi_long;
+#define TARGET_ABI_FMT_lx "%08x"
+#define TARGET_ABI_FMT_ld "%d"
+#define TARGET_ABI_FMT_lu "%u"
+#define TARGET_ABI_BITS 32
+#else
+typedef target_ulong abi_ulong;
+typedef target_long abi_long;
+#define TARGET_ABI_FMT_lx TARGET_FMT_lx
+#define TARGET_ABI_FMT_ld TARGET_FMT_ld
+#define TARGET_ABI_FMT_lu TARGET_FMT_lu
+#define TARGET_ABI_BITS TARGET_LONG_BITS
+#endif
+
+#include "thunk.h"
+#include "syscall_defs.h"
#include "syscall.h"
+#include "target_signal.h"
#include "gdbstub.h"
/* This struct is used to hold certain information about the image.
* task_struct fields in the kernel
*/
struct image_info {
- 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;
+ 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 entry;
+ abi_ulong code_offset;
+ abi_ulong data_offset;
char **host_argv;
int personality;
};
#ifdef TARGET_ARM
/* FPA state */
FPA11 fpa;
- /* Extra fields for semihosted binaries. */
- uint32_t stack_base;
- uint32_t heap_base;
- uint32_t heap_limit;
int swi_errno;
#endif
-#ifdef TARGET_I386
- target_ulong target_v86;
+#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;
#endif
#ifdef TARGET_M68K
int sim_syscalls;
+#endif
+#if defined(TARGET_ARM) || defined(TARGET_M68K)
+ /* Extra fields for semihosted binaries. */
+ uint32_t stack_base;
+ uint32_t heap_base;
+ uint32_t heap_limit;
#endif
int used; /* non zero if used */
struct image_info *info;
#define MAX_ARG_PAGES 32
/*
- * This structure is used to hold the arguments that are
+ * This structure is used to hold the arguments that are
* used when loading binaries.
*/
struct linux_binprm {
char buf[128];
void *page[MAX_ARG_PAGES];
- unsigned long p;
+ abi_ulong p;
int fd;
int e_uid, e_gid;
int argc, envc;
};
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);
-int loader_exec(const char * filename, char ** argv, char ** envp,
+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);
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);
+#ifdef TARGET_HAS_ELFLOAD32
+int load_elf_binary_multi(struct linux_binprm *bprm,
+ struct target_pt_regs *regs,
+ struct image_info *info);
+#endif
-void memcpy_to_target(target_ulong dest, const void *src,
- unsigned long len);
-void target_set_brk(target_ulong new_brk);
-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);
-long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3,
- long arg4, long arg5, long arg6);
+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);
void gemu_log(const char *fmt, ...) __attribute__((format(printf,1,2)));
extern CPUState *global_env;
void cpu_loop(CPUState *env);
void init_paths(const char *prefix);
const char *path(const char *pathname);
+char *target_strerror(int err);
extern int loglevel;
extern FILE *logfile;
+/* strace.c */
+void print_syscall(int num,
+ target_long arg1, target_long arg2, target_long arg3,
+ target_long arg4, target_long arg5, target_long arg6);
+void print_syscall_ret(int num, target_long arg1);
+extern int do_strace;
+
/* signal.c */
void process_pending_signals(void *cpu_env);
void signal_init(void);
void target_to_host_siginfo(siginfo_t *info, const target_siginfo_t *tinfo);
long do_sigreturn(CPUState *env);
long do_rt_sigreturn(CPUState *env);
+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);
-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);
-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);
/* user access */
#define VERIFY_READ 0
-#define VERIFY_WRITE 1
+#define VERIFY_WRITE 1 /* implies read access */
-#define access_ok(type,addr,size) (1)
+#define access_ok(type,addr,size) \
+ (page_check_range((target_ulong)addr,size,(type==VERIFY_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);\
+ int size = sizeof(*hptr);\
switch(size) {\
case 1:\
- *(uint8_t *)(ptr) = (typeof(*ptr))(x);\
+ *(uint8_t *)(hptr) = (typeof(*hptr))(x);\
break;\
case 2:\
- *(uint16_t *)(ptr) = tswap16((typeof(*ptr))(x));\
+ *(uint16_t *)(hptr) = tswap16((typeof(*hptr))(x));\
break;\
case 4:\
- *(uint32_t *)(ptr) = tswap32((typeof(*ptr))(x));\
+ *(uint32_t *)(hptr) = tswap32((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);\
+ int size = sizeof(*hptr);\
switch(size) {\
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:\
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 \
+ __ret = -TARGET_EFAULT; \
+ __ret; \
})
+/* 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
gets a pointer to a contiguous area of guest memory, but does not perform
/* 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 explicitely
+ 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_ptr), 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 tput32(addr, val) stl(addr, val)
#define tget64(addr) ldq(addr)
#define tput64(addr, val) stq(addr, val)
-#if TARGET_LONG_BITS == 64
+#if TARGET_ABI_BITS == 64
#define tgetl(addr) ldq(addr)
#define tputl(addr, val) stq(addr, val)
#else
projects / qemu.git / blobdiff