From 1ab2aea2489f34a05dabfe5bd91a76d89dd8c922 Mon Sep 17 00:00:00 2001 From: Leon Alrae Date: Fri, 30 Jan 2015 15:08:05 +0000 Subject: [PATCH] linux-user: correct stat structure in MIPS N32 Simple "hello world" MIPS N32 userland program crashes with segfault due to incorrectly defined stat structure in QEMU. Correct "target_stat" definition to match kernel's "stat64" as in MIPS N32 there are only plain "stat" syscalls using 64-bit structure. Reported-by: Daniel Sanders Signed-off-by: Leon Alrae Tested-by: Daniel Sanders Reviewed-by: James Hogan --- linux-user/syscall_defs.h | 86 +++++++++------------------------------ 1 file changed, 19 insertions(+), 67 deletions(-) diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h index 9ed6de88ec..edd5f3c80b 100644 --- a/linux-user/syscall_defs.h +++ b/linux-user/syscall_defs.h @@ -1607,73 +1607,25 @@ struct target_stat { #elif defined(TARGET_ABI_MIPSN32) struct target_stat { - unsigned st_dev; - int st_pad1[3]; /* Reserved for network id */ - unsigned int st_ino; - unsigned int st_mode; - unsigned int st_nlink; - int st_uid; - int st_gid; - unsigned st_rdev; - unsigned int st_pad2[2]; - unsigned int st_size; - unsigned int st_pad3; - /* - * Actually this should be timestruc_t st_atime, st_mtime and st_ctime - * but we don't have it under Linux. - */ - unsigned int target_st_atime; - unsigned int target_st_atime_nsec; - unsigned int target_st_mtime; - unsigned int target_st_mtime_nsec; - unsigned int target_st_ctime; - unsigned int target_st_ctime_nsec; - unsigned int st_blksize; - unsigned int st_blocks; - unsigned int st_pad4[14]; -}; - -/* - * This matches struct stat64 in glibc2.1, hence the absolutely insane - * amounts of padding around dev_t's. The memory layout is the same as of - * struct stat of the 64-bit kernel. - */ - -#define TARGET_HAS_STRUCT_STAT64 -struct target_stat64 { - unsigned int st_dev; - unsigned int st_pad0[3]; /* Reserved for st_dev expansion */ - - target_ulong st_ino; - - unsigned int st_mode; - unsigned int st_nlink; - - int st_uid; - int st_gid; - - unsigned int st_rdev; - unsigned int st_pad1[3]; /* Reserved for st_rdev expansion */ - - int st_size; - - /* - * Actually this should be timestruc_t st_atime, st_mtime and st_ctime - * but we don't have it under Linux. - */ - int target_st_atime; - unsigned int target_st_atime_nsec; /* Reserved for st_atime expansion */ - - int target_st_mtime; - unsigned int target_st_mtime_nsec; /* Reserved for st_mtime expansion */ - - int target_st_ctime; - unsigned int target_st_ctime_nsec; /* Reserved for st_ctime expansion */ - - unsigned int st_blksize; - unsigned int st_pad2; - - int st_blocks; + abi_ulong st_dev; + abi_ulong st_pad0[3]; /* Reserved for st_dev expansion */ + uint64_t st_ino; + unsigned int st_mode; + unsigned int st_nlink; + int st_uid; + int st_gid; + abi_ulong st_rdev; + abi_ulong st_pad1[3]; /* Reserved for st_rdev expansion */ + int64_t st_size; + abi_long target_st_atime; + abi_ulong target_st_atime_nsec; /* Reserved for st_atime expansion */ + abi_long target_st_mtime; + abi_ulong target_st_mtime_nsec; /* Reserved for st_mtime expansion */ + abi_long target_st_ctime; + abi_ulong target_st_ctime_nsec; /* Reserved for st_ctime expansion */ + abi_ulong st_blksize; + abi_ulong st_pad2; + int64_t st_blocks; }; #elif defined(TARGET_ABI_MIPSO32)