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54 lines
1.6 KiB
Diff
54 lines
1.6 KiB
Diff
From 608bec51128008afb81c9e3f297283e9f830a146 Mon Sep 17 00:00:00 2001
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From: Vladimir Serbinenko <phcoder@gmail.com>
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Date: Mon, 23 Jan 2017 20:21:05 +0300
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Subject: [PATCH 006/192] Support lseek64.
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Android doesn't have 64-bit off_t, so use off64_t instead.
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---
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configure.ac | 5 ++++-
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grub-core/osdep/unix/hostdisk.c | 8 ++++++++
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2 files changed, 12 insertions(+), 1 deletion(-)
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diff --git a/configure.ac b/configure.ac
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index d10d8adac..e0262e159 100644
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--- a/configure.ac
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+++ b/configure.ac
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@@ -373,7 +373,10 @@ case "$host_os" in
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;;
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*)
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AC_CHECK_SIZEOF(off_t)
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- test x"$ac_cv_sizeof_off_t" = x8 || AC_MSG_ERROR([Large file support is required]);;
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+ if test x"$ac_cv_sizeof_off_t" != x8 ; then
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+ AC_CHECK_SIZEOF(off64_t)
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+ test x"$ac_cv_sizeof_off64_t" = x8 || AC_MSG_ERROR([Large file support is required])
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+ fi;;
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esac
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if test x$USE_NLS = xno; then
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diff --git a/grub-core/osdep/unix/hostdisk.c b/grub-core/osdep/unix/hostdisk.c
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index 2a8c5882e..5450cf416 100644
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--- a/grub-core/osdep/unix/hostdisk.c
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+++ b/grub-core/osdep/unix/hostdisk.c
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@@ -77,11 +77,19 @@ grub_util_get_fd_size (grub_util_fd_t fd, const char *name, unsigned *log_secsiz
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int
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grub_util_fd_seek (grub_util_fd_t fd, grub_uint64_t off)
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{
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+#if SIZEOF_OFF_T == 8
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off_t offset = (off_t) off;
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if (lseek (fd, offset, SEEK_SET) != offset)
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return -1;
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+#elif SIZEOF_OFF64_T == 8
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+ off64_t offset = (off64_t) off;
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+ if (lseek64 (fd, offset, SEEK_SET) != offset)
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+ return -1;
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+#else
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+#error "No large file support"
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+#endif
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return 0;
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}
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--
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2.13.4
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