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qemu: restore 64-bit file lock handling for 32-bit guests
0002-linux-user-Replace-use-of-lfs64-related-functions-an.patch removes the TARGET_F_GETLK64, TARGET_F_SETLK64 and TARGET_F_SETLKW64 cases from target_to_host_fcntl_cmd(), along with the struct target_flock64 conversions. So every 32-bit guest calling fcntl64() to lock a file gets -TARGET_EINVAL. [YOCTO #16326] AI-Generated: Uses Claude (claude-fable-5-1) (From OE-Core rev: 81c4b64e499d4f90ed0d76ec9fbe05b75f9ec74d) Signed-off-by: Babanpreet Singh <bbnpreetsingh@gmail.com> Reviewed-by: Daniel R. Slater <daniel.slater@thermofisher.com> Tested-by: Daniel R. Slater <daniel.slater@thermofisher.com> Signed-off-by: Yoann Congal <yoann.congal@smile.fr> Signed-off-by: Paul Barker <paul@pbarker.dev>
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@@ -30,7 +30,8 @@ SRC_URI = "https://download.qemu.org/${BPN}-${PV}.tar.xz \
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file://0008-tests-meson.build-use-relative-path-to-refer-to-file.patch \
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file://0009-Define-MAP_SYNC-and-MAP_SHARED_VALIDATE-on-needed-li.patch \
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file://0010-hw-pvrdma-Protect-against-buggy-or-malicious-guest-d.patch \
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file://0002-linux-user-Replace-use-of-lfs64-related-functions-an.patch \
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file://0001-linux-user-syscall.c-drop-64-suffix-from-flock64-Co.patch \
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file://0002-linux-user-syscall.c-eliminate-other-explicit-LFS-usages.patch \
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file://fixedmeson.patch \
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file://no-pip.patch \
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file://4a8579ad8629b57a43daa62e46cc7af6e1078116.patch \
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+225
@@ -0,0 +1,225 @@
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From ac1bbe8ca46c550b3ad99c85744119a3ace7b4f4 Mon Sep 17 00:00:00 2001
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From: Michael Tokarev <mjt@tls.msk.ru>
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Date: Thu, 29 Aug 2024 09:39:50 +0300
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Subject: [PATCH] linux-user/syscall.c: drop 64 suffix from flock64 &Co
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Since we are always building with LFS enabled, in particular
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with -D_FILE_OFFSET_BITS=64, we should always have struct flock
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mapped to the 64bit variant (with off64_t), and F_GETLK mapped
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to F_GETLK64 etc, automatically.
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So there should be no need to explicitly use the "64" suffix
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for these things anymore.
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Also fix a misleading comment near safe_fcntl telling us to
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always use flock64 (since v2.6.0-1311-g435da5e7092a "linux-user:
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Use safe_syscall wrapper for fcntl").
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Reference: https://gitlab.com/qemu-project/qemu/-/issues/2215
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Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
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Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
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Upstream-Status: Backport [https://gitlab.com/qemu-project/qemu/-/commit/ac1bbe8ca46c550b3ad99c85744119a3ace7b4f4]
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---
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linux-user/syscall.c | 92 ++++++++++++++++++++--------------------------------
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1 file changed, 40 insertions(+), 52 deletions(-)
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--- a/linux-user/syscall.c
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+++ b/linux-user/syscall.c
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@@ -758,10 +758,8 @@
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* the libc function.
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*/
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#define safe_ioctl(...) safe_syscall(__NR_ioctl, __VA_ARGS__)
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-/* Similarly for fcntl. Note that callers must always:
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- * pass the F_GETLK64 etc constants rather than the unsuffixed F_GETLK
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- * use the flock64 struct rather than unsuffixed flock
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- * This will then work and use a 64-bit offset for both 32-bit and 64-bit hosts.
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+/* Similarly for fcntl. Since we always build with LFS enabled,
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+ * we should be using the 64-bit structures automatically.
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*/
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#ifdef __NR_fcntl64
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#define safe_fcntl(...) safe_syscall(__NR_fcntl64, __VA_ARGS__)
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@@ -6720,13 +6718,13 @@
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ret = cmd;
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break;
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case TARGET_F_GETLK:
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- ret = F_GETLK64;
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+ ret = F_GETLK;
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break;
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case TARGET_F_SETLK:
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- ret = F_SETLK64;
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+ ret = F_SETLK;
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break;
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case TARGET_F_SETLKW:
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- ret = F_SETLKW64;
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+ ret = F_SETLKW;
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break;
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case TARGET_F_GETOWN:
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ret = F_GETOWN;
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@@ -6742,13 +6740,13 @@
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break;
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#if TARGET_ABI_BITS == 32
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case TARGET_F_GETLK64:
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- ret = F_GETLK64;
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+ ret = F_GETLK;
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break;
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case TARGET_F_SETLK64:
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- ret = F_SETLK64;
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+ ret = F_SETLK;
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break;
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case TARGET_F_SETLKW64:
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- ret = F_SETLKW64;
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+ ret = F_SETLKW;
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break;
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#endif
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case TARGET_F_SETLEASE:
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@@ -6802,8 +6800,8 @@
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* them to 5, 6 and 7 before making the syscall(). Since we make the
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* syscall directly, adjust to what is supported by the kernel.
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*/
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- if (ret >= F_GETLK64 && ret <= F_SETLKW64) {
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- ret -= F_GETLK64 - 5;
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+ if (ret >= F_GETLK && ret <= F_SETLKW) {
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+ ret -= F_GETLK - 5;
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}
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#endif
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@@ -6836,7 +6834,7 @@
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return type;
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}
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-static inline abi_long copy_from_user_flock(struct flock64 *fl,
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+static inline abi_long copy_from_user_flock(struct flock *fl,
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abi_ulong target_flock_addr)
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{
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struct target_flock *target_fl;
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@@ -6861,7 +6859,7 @@
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}
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static inline abi_long copy_to_user_flock(abi_ulong target_flock_addr,
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- const struct flock64 *fl)
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+ const struct flock *fl)
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{
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struct target_flock *target_fl;
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short l_type;
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@@ -6880,8 +6878,8 @@
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return 0;
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}
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-typedef abi_long from_flock64_fn(struct flock64 *fl, abi_ulong target_addr);
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-typedef abi_long to_flock64_fn(abi_ulong target_addr, const struct flock64 *fl);
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+typedef abi_long from_flock64_fn(struct flock *fl, abi_ulong target_addr);
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+typedef abi_long to_flock64_fn(abi_ulong target_addr, const struct flock *fl);
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#if defined(TARGET_ARM) && TARGET_ABI_BITS == 32
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struct target_oabi_flock64 {
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@@ -6892,7 +6890,7 @@
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abi_int l_pid;
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} QEMU_PACKED;
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-static inline abi_long copy_from_user_oabi_flock64(struct flock64 *fl,
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+static inline abi_long copy_from_user_oabi_flock64(struct flock *fl,
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abi_ulong target_flock_addr)
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{
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struct target_oabi_flock64 *target_fl;
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@@ -6917,7 +6915,7 @@
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}
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static inline abi_long copy_to_user_oabi_flock64(abi_ulong target_flock_addr,
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- const struct flock64 *fl)
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+ const struct flock *fl)
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{
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struct target_oabi_flock64 *target_fl;
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short l_type;
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@@ -6937,7 +6935,7 @@
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}
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#endif
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-static inline abi_long copy_from_user_flock64(struct flock64 *fl,
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+static inline abi_long copy_from_user_flock64(struct flock *fl,
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abi_ulong target_flock_addr)
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{
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struct target_flock64 *target_fl;
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@@ -6962,7 +6960,7 @@
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}
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static inline abi_long copy_to_user_flock64(abi_ulong target_flock_addr,
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- const struct flock64 *fl)
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+ const struct flock *fl)
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{
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struct target_flock64 *target_fl;
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short l_type;
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@@ -6983,7 +6981,7 @@
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static abi_long do_fcntl(int fd, int cmd, abi_ulong arg)
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{
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- struct flock64 fl64;
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+ struct flock fl;
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#ifdef F_GETOWN_EX
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struct f_owner_ex fox;
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struct target_f_owner_ex *target_fox;
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@@ -6996,45 +6994,45 @@
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switch(cmd) {
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case TARGET_F_GETLK:
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- ret = copy_from_user_flock(&fl64, arg);
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+ ret = copy_from_user_flock(&fl, arg);
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if (ret) {
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return ret;
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}
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- ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
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+ ret = get_errno(safe_fcntl(fd, host_cmd, &fl));
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if (ret == 0) {
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- ret = copy_to_user_flock(arg, &fl64);
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+ ret = copy_to_user_flock(arg, &fl);
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}
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break;
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case TARGET_F_SETLK:
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case TARGET_F_SETLKW:
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- ret = copy_from_user_flock(&fl64, arg);
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+ ret = copy_from_user_flock(&fl, arg);
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if (ret) {
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return ret;
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}
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- ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
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+ ret = get_errno(safe_fcntl(fd, host_cmd, &fl));
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break;
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case TARGET_F_GETLK64:
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case TARGET_F_OFD_GETLK:
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- ret = copy_from_user_flock64(&fl64, arg);
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+ ret = copy_from_user_flock64(&fl, arg);
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if (ret) {
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return ret;
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}
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- ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
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+ ret = get_errno(safe_fcntl(fd, host_cmd, &fl));
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if (ret == 0) {
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- ret = copy_to_user_flock64(arg, &fl64);
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+ ret = copy_to_user_flock64(arg, &fl);
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}
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break;
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case TARGET_F_SETLK64:
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case TARGET_F_SETLKW64:
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case TARGET_F_OFD_SETLK:
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case TARGET_F_OFD_SETLKW:
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- ret = copy_from_user_flock64(&fl64, arg);
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+ ret = copy_from_user_flock64(&fl, arg);
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if (ret) {
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return ret;
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}
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- ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
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+ ret = get_errno(safe_fcntl(fd, host_cmd, &fl));
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break;
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case TARGET_F_GETFL:
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@@ -12301,7 +12299,7 @@
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case TARGET_NR_fcntl64:
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{
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int cmd;
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- struct flock64 fl;
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+ struct flock fl;
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from_flock64_fn *copyfrom = copy_from_user_flock64;
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to_flock64_fn *copyto = copy_to_user_flock64;
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-355
@@ -1,355 +0,0 @@
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From 71f14902256e3c3529710b713e1ea43100bf4c40 Mon Sep 17 00:00:00 2001
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From: Khem Raj <raj.khem@gmail.com>
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Date: Sat, 17 Dec 2022 08:37:46 -0800
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Subject: [PATCH 2/2] linux-user: Replace use of lfs64 related functions and
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macros
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Builds defines -D_FILE_OFFSET_BITS=64 which makes the original functions
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anf macros behave same as their 64 suffixed counterparts. This also
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helps in compiling with latest musl C library, where these macros and
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functions are no more available under _GNU_SOURCE feature macro
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Upstream-Status: Submitted [https://lists.gnu.org/archive/html/qemu-devel/2022-12/msg02841.html]
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Signed-off-by: Khem Raj <raj.khem@gmail.com>
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Cc: Laurent Vivier <laurent@vivier.eu>
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---
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linux-user/syscall.c | 153 +++++++++++--------------------------------
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1 file changed, 39 insertions(+), 114 deletions(-)
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Index: qemu-8.0.0/linux-user/syscall.c
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===================================================================
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--- qemu-8.0.0.orig/linux-user/syscall.c
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+++ qemu-8.0.0/linux-user/syscall.c
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@@ -761,8 +761,8 @@ safe_syscall6(ssize_t, copy_file_range,
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*/
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#define safe_ioctl(...) safe_syscall(__NR_ioctl, __VA_ARGS__)
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/* Similarly for fcntl. Note that callers must always:
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- * pass the F_GETLK64 etc constants rather than the unsuffixed F_GETLK
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- * use the flock64 struct rather than unsuffixed flock
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+ * pass the F_GETLK etc constants rather than the unsuffixed F_GETLK
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+ * use the flock struct rather than unsuffixed flock
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* This will then work and use a 64-bit offset for both 32-bit and 64-bit hosts.
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*/
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#ifdef __NR_fcntl64
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@@ -6813,13 +6813,13 @@ static int target_to_host_fcntl_cmd(int
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ret = cmd;
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break;
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case TARGET_F_GETLK:
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- ret = F_GETLK64;
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+ ret = F_GETLK;
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break;
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case TARGET_F_SETLK:
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- ret = F_SETLK64;
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+ ret = F_SETLK;
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break;
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case TARGET_F_SETLKW:
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- ret = F_SETLKW64;
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+ ret = F_SETLKW;
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break;
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case TARGET_F_GETOWN:
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ret = F_GETOWN;
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@@ -6833,17 +6833,6 @@ static int target_to_host_fcntl_cmd(int
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case TARGET_F_SETSIG:
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ret = F_SETSIG;
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break;
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-#if TARGET_ABI_BITS == 32
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- case TARGET_F_GETLK64:
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- ret = F_GETLK64;
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- break;
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- case TARGET_F_SETLK64:
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- ret = F_SETLK64;
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- break;
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- case TARGET_F_SETLKW64:
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- ret = F_SETLKW64;
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- break;
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-#endif
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case TARGET_F_SETLEASE:
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ret = F_SETLEASE;
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break;
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@@ -6895,8 +6884,8 @@ static int target_to_host_fcntl_cmd(int
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* them to 5, 6 and 7 before making the syscall(). Since we make the
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* syscall directly, adjust to what is supported by the kernel.
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*/
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- if (ret >= F_GETLK64 && ret <= F_SETLKW64) {
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- ret -= F_GETLK64 - 5;
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+ if (ret >= F_GETLK && ret <= F_SETLKW) {
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+ ret -= F_GETLK - 5;
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}
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#endif
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@@ -6929,55 +6918,11 @@ static int host_to_target_flock(int type
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return type;
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}
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-static inline abi_long copy_from_user_flock(struct flock64 *fl,
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- abi_ulong target_flock_addr)
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-{
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- struct target_flock *target_fl;
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- int l_type;
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-
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- if (!lock_user_struct(VERIFY_READ, target_fl, target_flock_addr, 1)) {
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- return -TARGET_EFAULT;
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- }
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-
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- __get_user(l_type, &target_fl->l_type);
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- l_type = target_to_host_flock(l_type);
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- if (l_type < 0) {
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- return l_type;
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- }
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- fl->l_type = l_type;
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- __get_user(fl->l_whence, &target_fl->l_whence);
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- __get_user(fl->l_start, &target_fl->l_start);
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- __get_user(fl->l_len, &target_fl->l_len);
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- __get_user(fl->l_pid, &target_fl->l_pid);
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- unlock_user_struct(target_fl, target_flock_addr, 0);
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- return 0;
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||||
-}
|
||||
-
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-static inline abi_long copy_to_user_flock(abi_ulong target_flock_addr,
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- const struct flock64 *fl)
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-{
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- struct target_flock *target_fl;
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- short l_type;
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||||
-
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- if (!lock_user_struct(VERIFY_WRITE, target_fl, target_flock_addr, 0)) {
|
||||
- return -TARGET_EFAULT;
|
||||
- }
|
||||
-
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||||
- l_type = host_to_target_flock(fl->l_type);
|
||||
- __put_user(l_type, &target_fl->l_type);
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- __put_user(fl->l_whence, &target_fl->l_whence);
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- __put_user(fl->l_start, &target_fl->l_start);
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- __put_user(fl->l_len, &target_fl->l_len);
|
||||
- __put_user(fl->l_pid, &target_fl->l_pid);
|
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- unlock_user_struct(target_fl, target_flock_addr, 1);
|
||||
- return 0;
|
||||
-}
|
||||
-
|
||||
-typedef abi_long from_flock64_fn(struct flock64 *fl, abi_ulong target_addr);
|
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-typedef abi_long to_flock64_fn(abi_ulong target_addr, const struct flock64 *fl);
|
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+typedef abi_long from_flock_fn(struct flock *fl, abi_ulong target_addr);
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+typedef abi_long to_flock_fn(abi_ulong target_addr, const struct flock *fl);
|
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|
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#if defined(TARGET_ARM) && TARGET_ABI_BITS == 32
|
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-struct target_oabi_flock64 {
|
||||
+struct target_oabi_flock {
|
||||
abi_short l_type;
|
||||
abi_short l_whence;
|
||||
abi_llong l_start;
|
||||
@@ -6985,10 +6930,10 @@ struct target_oabi_flock64 {
|
||||
abi_int l_pid;
|
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} QEMU_PACKED;
|
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|
||||
-static inline abi_long copy_from_user_oabi_flock64(struct flock64 *fl,
|
||||
+static inline abi_long copy_from_user_oabi_flock(struct flock *fl,
|
||||
abi_ulong target_flock_addr)
|
||||
{
|
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- struct target_oabi_flock64 *target_fl;
|
||||
+ struct target_oabi_flock *target_fl;
|
||||
int l_type;
|
||||
|
||||
if (!lock_user_struct(VERIFY_READ, target_fl, target_flock_addr, 1)) {
|
||||
@@ -7009,10 +6954,10 @@ static inline abi_long copy_from_user_oa
|
||||
return 0;
|
||||
}
|
||||
|
||||
-static inline abi_long copy_to_user_oabi_flock64(abi_ulong target_flock_addr,
|
||||
- const struct flock64 *fl)
|
||||
+static inline abi_long copy_to_user_oabi_flock(abi_ulong target_flock_addr,
|
||||
+ const struct flock *fl)
|
||||
{
|
||||
- struct target_oabi_flock64 *target_fl;
|
||||
+ struct target_oabi_flock *target_fl;
|
||||
short l_type;
|
||||
|
||||
if (!lock_user_struct(VERIFY_WRITE, target_fl, target_flock_addr, 0)) {
|
||||
@@ -7030,10 +6975,10 @@ static inline abi_long copy_to_user_oabi
|
||||
}
|
||||
#endif
|
||||
|
||||
-static inline abi_long copy_from_user_flock64(struct flock64 *fl,
|
||||
+static inline abi_long copy_from_user_flock(struct flock *fl,
|
||||
abi_ulong target_flock_addr)
|
||||
{
|
||||
- struct target_flock64 *target_fl;
|
||||
+ struct target_flock *target_fl;
|
||||
int l_type;
|
||||
|
||||
if (!lock_user_struct(VERIFY_READ, target_fl, target_flock_addr, 1)) {
|
||||
@@ -7054,10 +6999,10 @@ static inline abi_long copy_from_user_fl
|
||||
return 0;
|
||||
}
|
||||
|
||||
-static inline abi_long copy_to_user_flock64(abi_ulong target_flock_addr,
|
||||
- const struct flock64 *fl)
|
||||
+static inline abi_long copy_to_user_flock(abi_ulong target_flock_addr,
|
||||
+ const struct flock *fl)
|
||||
{
|
||||
- struct target_flock64 *target_fl;
|
||||
+ struct target_flock *target_fl;
|
||||
short l_type;
|
||||
|
||||
if (!lock_user_struct(VERIFY_WRITE, target_fl, target_flock_addr, 0)) {
|
||||
@@ -7076,7 +7021,7 @@ static inline abi_long copy_to_user_floc
|
||||
|
||||
static abi_long do_fcntl(int fd, int cmd, abi_ulong arg)
|
||||
{
|
||||
- struct flock64 fl64;
|
||||
+ struct flock fl64;
|
||||
#ifdef F_GETOWN_EX
|
||||
struct f_owner_ex fox;
|
||||
struct target_f_owner_ex *target_fox;
|
||||
@@ -7089,6 +7034,7 @@ static abi_long do_fcntl(int fd, int cmd
|
||||
|
||||
switch(cmd) {
|
||||
case TARGET_F_GETLK:
|
||||
+ case TARGET_F_OFD_GETLK:
|
||||
ret = copy_from_user_flock(&fl64, arg);
|
||||
if (ret) {
|
||||
return ret;
|
||||
@@ -7098,32 +7044,11 @@ static abi_long do_fcntl(int fd, int cmd
|
||||
ret = copy_to_user_flock(arg, &fl64);
|
||||
}
|
||||
break;
|
||||
-
|
||||
case TARGET_F_SETLK:
|
||||
case TARGET_F_SETLKW:
|
||||
- ret = copy_from_user_flock(&fl64, arg);
|
||||
- if (ret) {
|
||||
- return ret;
|
||||
- }
|
||||
- ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
|
||||
- break;
|
||||
-
|
||||
- case TARGET_F_GETLK64:
|
||||
- case TARGET_F_OFD_GETLK:
|
||||
- ret = copy_from_user_flock64(&fl64, arg);
|
||||
- if (ret) {
|
||||
- return ret;
|
||||
- }
|
||||
- ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
|
||||
- if (ret == 0) {
|
||||
- ret = copy_to_user_flock64(arg, &fl64);
|
||||
- }
|
||||
- break;
|
||||
- case TARGET_F_SETLK64:
|
||||
- case TARGET_F_SETLKW64:
|
||||
case TARGET_F_OFD_SETLK:
|
||||
case TARGET_F_OFD_SETLKW:
|
||||
- ret = copy_from_user_flock64(&fl64, arg);
|
||||
+ ret = copy_from_user_flock(&fl64, arg);
|
||||
if (ret) {
|
||||
return ret;
|
||||
}
|
||||
@@ -7348,7 +7273,7 @@ static inline abi_long target_truncate64
|
||||
arg2 = arg3;
|
||||
arg3 = arg4;
|
||||
}
|
||||
- return get_errno(truncate64(arg1, target_offset64(arg2, arg3)));
|
||||
+ return get_errno(truncate(arg1, target_offset64(arg2, arg3)));
|
||||
}
|
||||
#endif
|
||||
|
||||
@@ -7362,7 +7287,7 @@ static inline abi_long target_ftruncate6
|
||||
arg2 = arg3;
|
||||
arg3 = arg4;
|
||||
}
|
||||
- return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3)));
|
||||
+ return get_errno(ftruncate(arg1, target_offset64(arg2, arg3)));
|
||||
}
|
||||
#endif
|
||||
|
||||
@@ -8598,7 +8523,7 @@ static int do_getdents(abi_long dirfd, a
|
||||
void *tdirp;
|
||||
int hlen, hoff, toff;
|
||||
int hreclen, treclen;
|
||||
- off64_t prev_diroff = 0;
|
||||
+ off_t prev_diroff = 0;
|
||||
|
||||
hdirp = g_try_malloc(count);
|
||||
if (!hdirp) {
|
||||
@@ -8651,7 +8576,7 @@ static int do_getdents(abi_long dirfd, a
|
||||
* Return what we have, resetting the file pointer to the
|
||||
* location of the first record not returned.
|
||||
*/
|
||||
- lseek64(dirfd, prev_diroff, SEEK_SET);
|
||||
+ lseek(dirfd, prev_diroff, SEEK_SET);
|
||||
break;
|
||||
}
|
||||
|
||||
@@ -8685,7 +8610,7 @@ static int do_getdents64(abi_long dirfd,
|
||||
void *tdirp;
|
||||
int hlen, hoff, toff;
|
||||
int hreclen, treclen;
|
||||
- off64_t prev_diroff = 0;
|
||||
+ off_t prev_diroff = 0;
|
||||
|
||||
hdirp = g_try_malloc(count);
|
||||
if (!hdirp) {
|
||||
@@ -8727,7 +8652,7 @@ static int do_getdents64(abi_long dirfd,
|
||||
* Return what we have, resetting the file pointer to the
|
||||
* location of the first record not returned.
|
||||
*/
|
||||
- lseek64(dirfd, prev_diroff, SEEK_SET);
|
||||
+ lseek(dirfd, prev_diroff, SEEK_SET);
|
||||
break;
|
||||
}
|
||||
|
||||
@@ -11158,7 +11083,7 @@ static abi_long do_syscall1(CPUArchState
|
||||
return -TARGET_EFAULT;
|
||||
}
|
||||
}
|
||||
- ret = get_errno(pread64(arg1, p, arg3, target_offset64(arg4, arg5)));
|
||||
+ ret = get_errno(pread(arg1, p, arg3, target_offset64(arg4, arg5)));
|
||||
unlock_user(p, arg2, ret);
|
||||
return ret;
|
||||
case TARGET_NR_pwrite64:
|
||||
@@ -11175,7 +11100,7 @@ static abi_long do_syscall1(CPUArchState
|
||||
return -TARGET_EFAULT;
|
||||
}
|
||||
}
|
||||
- ret = get_errno(pwrite64(arg1, p, arg3, target_offset64(arg4, arg5)));
|
||||
+ ret = get_errno(pwrite(arg1, p, arg3, target_offset64(arg4, arg5)));
|
||||
unlock_user(p, arg2, 0);
|
||||
return ret;
|
||||
#endif
|
||||
@@ -11998,14 +11923,14 @@ static abi_long do_syscall1(CPUArchState
|
||||
case TARGET_NR_fcntl64:
|
||||
{
|
||||
int cmd;
|
||||
- struct flock64 fl;
|
||||
- from_flock64_fn *copyfrom = copy_from_user_flock64;
|
||||
- to_flock64_fn *copyto = copy_to_user_flock64;
|
||||
+ struct flock fl;
|
||||
+ from_flock_fn *copyfrom = copy_from_user_flock;
|
||||
+ to_flock_fn *copyto = copy_to_user_flock;
|
||||
|
||||
#ifdef TARGET_ARM
|
||||
if (!cpu_env->eabi) {
|
||||
- copyfrom = copy_from_user_oabi_flock64;
|
||||
- copyto = copy_to_user_oabi_flock64;
|
||||
+ copyfrom = copy_from_user_oabi_flock;
|
||||
+ copyto = copy_to_user_oabi_flock;
|
||||
}
|
||||
#endif
|
||||
|
||||
@@ -12015,7 +11940,7 @@ static abi_long do_syscall1(CPUArchState
|
||||
}
|
||||
|
||||
switch(arg2) {
|
||||
- case TARGET_F_GETLK64:
|
||||
+ case TARGET_F_GETLK:
|
||||
ret = copyfrom(&fl, arg3);
|
||||
if (ret) {
|
||||
break;
|
||||
@@ -12026,8 +11951,8 @@ static abi_long do_syscall1(CPUArchState
|
||||
}
|
||||
break;
|
||||
|
||||
- case TARGET_F_SETLK64:
|
||||
- case TARGET_F_SETLKW64:
|
||||
+ case TARGET_F_SETLK:
|
||||
+ case TARGET_F_SETLKW:
|
||||
ret = copyfrom(&fl, arg3);
|
||||
if (ret) {
|
||||
break;
|
||||
+107
@@ -0,0 +1,107 @@
|
||||
From 99174ce39e86ec6aea7bb7ce326b16e3eed9e3da Mon Sep 17 00:00:00 2001
|
||||
From: Michael Tokarev <mjt@tls.msk.ru>
|
||||
Date: Thu, 29 Aug 2024 09:59:51 +0300
|
||||
Subject: [PATCH] linux-user/syscall.c: eliminate other explicit LFS usages
|
||||
|
||||
Since we alwasy build with LFS enabled, and with -D_FILE_OFFSET_BITS=64
|
||||
in particular, there is no need to use 64bit versions of various system
|
||||
calls and constants, regular ones will do just fine. Eliminate a few
|
||||
last uses of the following constructs in linux-user/syscall.c:
|
||||
off64_t
|
||||
ftruncate64()
|
||||
lseek64()
|
||||
pread64()
|
||||
pwrite64()
|
||||
|
||||
This way it can be built on systems where the 64bit variants of
|
||||
everything is not defined (since the system always uses 64bit
|
||||
variants), such as on recent MUSL.
|
||||
|
||||
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2215
|
||||
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
|
||||
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
|
||||
|
||||
Upstream-Status: Backport [https://gitlab.com/qemu-project/qemu/-/commit/99174ce39e86ec6aea7bb7ce326b16e3eed9e3da]
|
||||
---
|
||||
linux-user/syscall.c | 16 ++++++++--------
|
||||
1 file changed, 8 insertions(+), 8 deletions(-)
|
||||
|
||||
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
|
||||
index 48c459e515..a666986189 100644
|
||||
--- a/linux-user/syscall.c
|
||||
+++ b/linux-user/syscall.c
|
||||
@@ -7265,7 +7265,7 @@ static inline abi_long target_truncate64(CPUArchState *cpu_env, const char *arg1
|
||||
arg2 = arg3;
|
||||
arg3 = arg4;
|
||||
}
|
||||
- return get_errno(truncate64(arg1, target_offset64(arg2, arg3)));
|
||||
+ return get_errno(truncate(arg1, target_offset64(arg2, arg3)));
|
||||
}
|
||||
#endif
|
||||
|
||||
@@ -7279,7 +7279,7 @@ static inline abi_long target_ftruncate64(CPUArchState *cpu_env, abi_long arg1,
|
||||
arg2 = arg3;
|
||||
arg3 = arg4;
|
||||
}
|
||||
- return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3)));
|
||||
+ return get_errno(ftruncate(arg1, target_offset64(arg2, arg3)));
|
||||
}
|
||||
#endif
|
||||
|
||||
@@ -8664,7 +8664,7 @@ static int do_getdents(abi_long dirfd, abi_long arg2, abi_long count)
|
||||
void *tdirp;
|
||||
int hlen, hoff, toff;
|
||||
int hreclen, treclen;
|
||||
- off64_t prev_diroff = 0;
|
||||
+ off_t prev_diroff = 0;
|
||||
|
||||
hdirp = g_try_malloc(count);
|
||||
if (!hdirp) {
|
||||
@@ -8717,7 +8717,7 @@ static int do_getdents(abi_long dirfd, abi_long arg2, abi_long count)
|
||||
* Return what we have, resetting the file pointer to the
|
||||
* location of the first record not returned.
|
||||
*/
|
||||
- lseek64(dirfd, prev_diroff, SEEK_SET);
|
||||
+ lseek(dirfd, prev_diroff, SEEK_SET);
|
||||
break;
|
||||
}
|
||||
|
||||
@@ -8751,7 +8751,7 @@ static int do_getdents64(abi_long dirfd, abi_long arg2, abi_long count)
|
||||
void *tdirp;
|
||||
int hlen, hoff, toff;
|
||||
int hreclen, treclen;
|
||||
- off64_t prev_diroff = 0;
|
||||
+ off_t prev_diroff = 0;
|
||||
|
||||
hdirp = g_try_malloc(count);
|
||||
if (!hdirp) {
|
||||
@@ -8793,7 +8793,7 @@ static int do_getdents64(abi_long dirfd, abi_long arg2, abi_long count)
|
||||
* Return what we have, resetting the file pointer to the
|
||||
* location of the first record not returned.
|
||||
*/
|
||||
- lseek64(dirfd, prev_diroff, SEEK_SET);
|
||||
+ lseek(dirfd, prev_diroff, SEEK_SET);
|
||||
break;
|
||||
}
|
||||
|
||||
@@ -11524,7 +11524,7 @@ static abi_long do_syscall1(CPUArchState *cpu_env, int num, abi_long arg1,
|
||||
return -TARGET_EFAULT;
|
||||
}
|
||||
}
|
||||
- ret = get_errno(pread64(arg1, p, arg3, target_offset64(arg4, arg5)));
|
||||
+ ret = get_errno(pread(arg1, p, arg3, target_offset64(arg4, arg5)));
|
||||
unlock_user(p, arg2, ret);
|
||||
return ret;
|
||||
case TARGET_NR_pwrite64:
|
||||
@@ -11541,7 +11541,7 @@ static abi_long do_syscall1(CPUArchState *cpu_env, int num, abi_long arg1,
|
||||
return -TARGET_EFAULT;
|
||||
}
|
||||
}
|
||||
- ret = get_errno(pwrite64(arg1, p, arg3, target_offset64(arg4, arg5)));
|
||||
+ ret = get_errno(pwrite(arg1, p, arg3, target_offset64(arg4, arg5)));
|
||||
unlock_user(p, arg2, 0);
|
||||
return ret;
|
||||
#endif
|
||||
--
|
||||
2.43.0
|
||||
|
||||
Reference in new issue
Block a user