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target/xtensa: add linux-user support

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Import list of syscalls from the kernel source. Conditionalize code/data
that is only used with softmmu. Implement exception handlers. Implement
signal hander (only the core registers for now, no coprocessors or TIE).

Cc: Riku Voipio <riku.voipio@iki.fi>
Cc: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
This commit is contained in:
Max Filippov 2017-01-25 10:54:11 -08:00
parent bf9c3a5a96
commit ba7651fba5
22 changed files with 1705 additions and 44 deletions
Download patch file Download diff file Expand all files Collapse all files

65
linux-user/syscall_defs.h
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@ -71,7 +71,8 @@
|| defined(TARGET_M68K) || defined(TARGET_CRIS) \
|| defined(TARGET_UNICORE32) || defined(TARGET_S390X) \
|| defined(TARGET_OPENRISC) || defined(TARGET_TILEGX) \
|| defined(TARGET_NIOS2) || defined(TARGET_RISCV)
|| defined(TARGET_NIOS2) || defined(TARGET_RISCV) \
|| defined(TARGET_XTENSA)
#define TARGET_IOC_SIZEBITS 14
#define TARGET_IOC_DIRBITS 2
@ -436,7 +437,7 @@ int do_sigaction(int sig, const struct target_sigaction *act,
|| defined(TARGET_MICROBLAZE) || defined(TARGET_UNICORE32) \
|| defined(TARGET_S390X) || defined(TARGET_OPENRISC) \
|| defined(TARGET_TILEGX) || defined(TARGET_HPPA) || defined(TARGET_NIOS2) \
|| defined(TARGET_RISCV)
|| defined(TARGET_RISCV) || defined(TARGET_XTENSA)
#if defined(TARGET_SPARC)
#define TARGET_SA_NOCLDSTOP 8u
@ -1392,6 +1393,18 @@ struct target_winsize {
#define TARGET_MAP_NONBLOCK 0x20000 /* do not block on IO */
#define TARGET_MAP_STACK 0x40000 /* ignored */
#define TARGET_MAP_HUGETLB 0x80000 /* create a huge page mapping */
#elif defined(TARGET_XTENSA)
#define TARGET_MAP_FIXED 0x10 /* Interpret addr exactly */
#define TARGET_MAP_ANONYMOUS 0x0800 /* don't use a file */
#define TARGET_MAP_GROWSDOWN 0x1000 /* stack-like segment */
#define TARGET_MAP_DENYWRITE 0x2000 /* ETXTBSY */
#define TARGET_MAP_EXECUTABLE 0x4000 /* mark it as an executable */
#define TARGET_MAP_LOCKED 0x8000 /* pages are locked */
#define TARGET_MAP_NORESERVE 0x0400 /* don't check for reservations */
#define TARGET_MAP_POPULATE 0x10000 /* populate (prefault) pagetables */
#define TARGET_MAP_NONBLOCK 0x20000 /* do not block on IO */
#define TARGET_MAP_STACK 0x40000
#define TARGET_MAP_HUGETLB 0x80000 /* create a huge page mapping */
#else
#define TARGET_MAP_FIXED 0x10 /* Interpret addr exactly */
#define TARGET_MAP_ANONYMOUS 0x20 /* don't use a file */
@ -2093,6 +2106,51 @@ struct target_stat {
abi_ulong target_st_ctime_nsec;
unsigned int __unused[2];
};
#elif defined(TARGET_XTENSA)
struct target_stat {
abi_ulong st_dev;
abi_ulong st_ino;
unsigned int st_mode;
unsigned int st_nlink;
unsigned int st_uid;
unsigned int st_gid;
abi_ulong st_rdev;
abi_long st_size;
abi_ulong st_blksize;
abi_ulong st_blocks;
abi_ulong target_st_atime;
abi_ulong target_st_atime_nsec;
abi_ulong target_st_mtime;
abi_ulong target_st_mtime_nsec;
abi_ulong target_st_ctime;
abi_ulong target_st_ctime_nsec;
abi_ulong __unused4;
abi_ulong __unused5;
};
#define TARGET_HAS_STRUCT_STAT64
struct target_stat64 {
uint64_t st_dev; /* Device */
uint64_t st_ino; /* File serial number */
unsigned int st_mode; /* File mode. */
unsigned int st_nlink; /* Link count. */
unsigned int st_uid; /* User ID of the file's owner. */
unsigned int st_gid; /* Group ID of the file's group. */
uint64_t st_rdev; /* Device number, if device. */
int64_t st_size; /* Size of file, in bytes. */
abi_ulong st_blksize; /* Optimal block size for I/O. */
abi_ulong __unused2;
uint64_t st_blocks; /* Number 512-byte blocks allocated. */
abi_ulong target_st_atime; /* Time of last access. */
abi_ulong target_st_atime_nsec;
abi_ulong target_st_mtime; /* Time of last modification. */
abi_ulong target_st_mtime_nsec;
abi_ulong target_st_ctime; /* Time of last status change. */
abi_ulong target_st_ctime_nsec;
abi_ulong __unused4;
abi_ulong __unused5;
};
#elif defined(TARGET_OPENRISC) || defined(TARGET_TILEGX) || \
defined(TARGET_NIOS2) || defined(TARGET_RISCV)
@ -2593,7 +2651,8 @@ struct target_flock64 {
short l_whence;
#if defined(TARGET_PPC) || defined(TARGET_X86_64) || defined(TARGET_MIPS) \
|| defined(TARGET_SPARC) || defined(TARGET_HPPA) \
|| defined(TARGET_MICROBLAZE) || defined(TARGET_TILEGX)
|| defined(TARGET_MICROBLAZE) || defined(TARGET_TILEGX) \
|| defined(TARGET_XTENSA)
int __pad;
#endif
abi_llong l_start;