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Diffstat (limited to 'libc/sysdeps/linux/common/posix_fadvise.c')
-rw-r--r--libc/sysdeps/linux/common/posix_fadvise.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/libc/sysdeps/linux/common/posix_fadvise.c b/libc/sysdeps/linux/common/posix_fadvise.c
index 14bbeeea1..74d8409c0 100644
--- a/libc/sysdeps/linux/common/posix_fadvise.c
+++ b/libc/sysdeps/linux/common/posix_fadvise.c
@@ -41,9 +41,17 @@ int posix_fadvise(int fd, off_t offset, off_t len, int advice)
# if __WORDSIZE == 64
ret = INTERNAL_SYSCALL(fadvise64_64, err, 4, fd, offset, len, advice);
# else
-# if defined(__UCLIBC_SYSCALL_ALIGN_64BIT__) || defined(__arm__)
+# if defined (__arm__) || \
+ (defined(__UCLIBC_SYSCALL_ALIGN_64BIT__) && (defined(__powerpc__) || defined(__xtensa__)))
+ /* arch with 64-bit data in even reg alignment #1: [powerpc/xtensa]
+ * custom syscall handler (rearranges @advice to avoid register hole punch) */
ret = INTERNAL_SYSCALL(fadvise64_64, err, 6, fd, advice,
OFF_HI_LO (offset), OFF_HI_LO (len));
+# elif defined(__UCLIBC_SYSCALL_ALIGN_64BIT__)
+ /* arch with 64-bit data in even reg alignment #2: [arcv2/others-in-future]
+ * stock syscall handler in kernel (reg hole punched) */
+ ret = INTERNAL_SYSCALL(fadvise64_64, err, 7, fd, 0,
+ OFF_HI_LO (offset), OFF_HI_LO (len), advice);
# else
ret = INTERNAL_SYSCALL(fadvise64_64, err, 6, fd,
OFF_HI_LO (offset), OFF_HI_LO (len), advice);