A "linux-user: " prefix for the subject would be nice, but let's wait
for other comments first.
Am 09.02.2012 20:05, schrieb Paul Brook:
> host_to_target_stat64 is used for both stat64 and newfstatat syscalls.
> In the latter case we don't actually have a struct stat64.
> The current TARGET_ABI_BITS test is wrong for some 64-bit ILP32 targets
> (in particular MIPS N32). Check for TARGET_NR_newfstatat instead.
>
> This will all break horribly if both newfstatat and stat64 are defined,
> so also add a check for that.
>
> Signed-off-by: Paul Brook <p...@codesourcery.com>
> ---
CC'ing Riku.
Andreas
> linux-user/syscall.c | 12 +++++++++++-
> 1 files changed, 11 insertions(+), 1 deletions(-)
>
> diff --git a/linux-user/syscall.c b/linux-user/syscall.c
> index ee32089..6e0999b 100644
> --- a/linux-user/syscall.c
> +++ b/linux-user/syscall.c
> @@ -4474,6 +4474,16 @@ static inline abi_long
> host_to_target_timespec(abi_ulong target_addr,
> return 0;
> }
>
> +/* The newfstatat syscall uses regular struct stat. However it never
> + occurs on targets with a struct stat64. This allows us to share
> + host_to_target_stat64 between newfstatat and fstatat64. */
> +
> +#if defined(TARGET_NR_newfstatat) && (defined(TARGET_NR_fstatat64) \
> + || defined(TARGET_NR_stat64) || defined(TARGET_NR_fstat64) \
> + || defined(TARGET_NR_lstat64))
> +#error mismatched stat syscalls.
> +#endif
> +
> #if defined(TARGET_NR_stat64) || defined(TARGET_NR_newfstatat)
> static inline abi_long host_to_target_stat64(void *cpu_env,
> abi_ulong target_addr,
> @@ -4506,7 +4516,7 @@ static inline abi_long host_to_target_stat64(void
> *cpu_env,
> } else
> #endif
> {
> -#if TARGET_ABI_BITS == 64 && !defined(TARGET_ALPHA)
> +#if defined(TARGET_NR_newfstatat)
> struct target_stat *target_st;
> #else
> struct target_stat64 *target_st;
--
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