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authorRich Felker <dalias@aerifal.cx>2019-07-18 19:38:12 -0400
committerRich Felker <dalias@aerifal.cx>2019-07-18 19:38:12 -0400
commit01ae3fc6d48f4a45535189b7a6db286535af08ca (patch)
tree5777ee3da734eb3b6a15dedc984bcd9934bf6fde /arch/aarch64
parent9493892021eac4edf1776d945bcdd3f7a96f6978 (diff)
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decouple struct stat from kernel type
presently, all archs/ABIs have struct stat matching the kernel
stat[64] type, except mips/mipsn32/mips64 which do conversion hacks in
syscall_arch.h to work around bugs in the kernel type. this patch
completely decouples them and adds a translation step to the success
path of fstatat. at present, this is just a gratuitous copying, but it
opens up multiple possibilities for future support for 64-bit time_t
on 32-bit archs and for cleaned-up/unified ABIs.

for clarity, the mips hacks are not yet removed in this commit, so the
mips kstat structs still correspond to the output of the hacks in
their syscall_arch.h files, not the raw kernel type. a subsequent
commit will fix this.
Diffstat (limited to 'arch/aarch64')
-rw-r--r--arch/aarch64/kstat.h21
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/aarch64/kstat.h b/arch/aarch64/kstat.h
new file mode 100644
index 00000000..92625f36
--- /dev/null
+++ b/arch/aarch64/kstat.h
@@ -0,0 +1,21 @@
+struct kstat {
+	dev_t st_dev;
+	ino_t st_ino;
+	mode_t st_mode;
+	nlink_t st_nlink;
+	uid_t st_uid;
+	gid_t st_gid;
+	dev_t st_rdev;
+	unsigned long __pad;
+	off_t st_size;
+	blksize_t st_blksize;
+	int __pad2;
+	blkcnt_t st_blocks;
+	long st_atime_sec;
+	long st_atime_nsec;
+	long st_mtime_sec;
+	long st_mtime_nsec;
+	long st_ctime_sec;
+	long st_ctime_nsec;
+	unsigned __unused[2];
+};