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198 lines
4.5 KiB
Diff
198 lines
4.5 KiB
Diff
commit 909fe47c7009aa9a75fe9470c5f8d3dd5b50917a
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Author: Shea Levy <shea@shealevy.com>
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Date: Sun Feb 18 13:50:11 2018 -0500
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linux-user: Support f_flags in statfs when available.
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Signed-off-by: Shea Levy <shea@shealevy.com>
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diff --git a/configure b/configure
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index 913e14839d..52fe2bf941 100755
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--- a/configure
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+++ b/configure
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@@ -5303,6 +5303,22 @@ if compile_prog "" "" ; then
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have_utmpx=yes
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fi
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+##########################################
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+# Check for newer fields of struct statfs on Linux
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+
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+if test "$linux_user" = "yes"; then
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+ cat > $TMPC <<EOF
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+#include <sys/vfs.h>
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+
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+int main(void) {
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+ struct statfs fs;
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+ fs.f_flags = 0;
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+}
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+EOF
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+ if compile_object ; then
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+ have_statfs_flags=yes
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+ fi
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+fi
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##########################################
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# checks for sanitizers
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@@ -6518,6 +6534,10 @@ if test "$have_utmpx" = "yes" ; then
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echo "HAVE_UTMPX=y" >> $config_host_mak
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fi
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+if test "$have_statfs_flags" = "yes" ; then
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+ echo "HAVE_STATFS_FLAGS=y" >> $config_host_mak
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+fi
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+
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if test "$ivshmem" = "yes" ; then
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echo "CONFIG_IVSHMEM=y" >> $config_host_mak
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fi
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diff --git a/linux-user/syscall.c b/linux-user/syscall.c
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index 82b35a6bdf..77481eca2c 100644
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--- a/linux-user/syscall.c
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+++ b/linux-user/syscall.c
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@@ -9534,6 +9534,9 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
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__put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
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__put_user(stfs.f_namelen, &target_stfs->f_namelen);
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__put_user(stfs.f_frsize, &target_stfs->f_frsize);
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+#ifdef HAVE_STATFS_FLAGS
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+ __put_user(stfs.f_flags, &target_stfs->f_flags);
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+#endif
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memset(target_stfs->f_spare, 0, sizeof(target_stfs->f_spare));
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unlock_user_struct(target_stfs, arg2, 1);
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}
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diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h
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index a35c52a60a..64aa49d3c5 100644
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--- a/linux-user/syscall_defs.h
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+++ b/linux-user/syscall_defs.h
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@@ -362,7 +362,14 @@ struct kernel_statfs {
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int f_ffree;
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kernel_fsid_t f_fsid;
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int f_namelen;
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+#ifdef HAVE_STATFS_FLAGS
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+ int f_frsize;
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+ int f_flags;
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+ int f_spare[4];
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+#else
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int f_spare[6];
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+#endif
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+
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};
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struct target_dirent {
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@@ -2223,7 +2230,12 @@ struct target_statfs {
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/* Linux specials */
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target_fsid_t f_fsid;
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int32_t f_namelen;
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+#ifdef HAVE_STATFS_FLAGS
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+ int32_t f_flags;
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+ int32_t f_spare[5];
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+#else
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int32_t f_spare[6];
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+#endif
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};
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#else
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struct target_statfs {
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@@ -2239,7 +2251,12 @@ struct target_statfs {
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/* Linux specials */
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target_fsid_t f_fsid;
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abi_long f_namelen;
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+#ifdef HAVE_STATFS_FLAGS
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+ abi_long f_flags;
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+ abi_long f_spare[5];
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+#else
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abi_long f_spare[6];
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+#endif
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};
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#endif
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@@ -2255,7 +2272,12 @@ struct target_statfs64 {
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uint64_t f_bavail;
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target_fsid_t f_fsid;
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uint32_t f_namelen;
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+#ifdef HAVE_STATFS_FLAGS
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+ uint32_t f_flags;
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+ uint32_t f_spare[5];
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+#else
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uint32_t f_spare[6];
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+#endif
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};
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#elif (defined(TARGET_PPC64) || defined(TARGET_X86_64) || \
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defined(TARGET_SPARC64) || defined(TARGET_AARCH64)) && \
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@@ -2271,7 +2293,12 @@ struct target_statfs {
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target_fsid_t f_fsid;
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abi_long f_namelen;
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abi_long f_frsize;
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+#ifdef HAVE_STATFS_FLAGS
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+ abi_long f_flags;
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+ abi_long f_spare[4];
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+#else
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abi_long f_spare[5];
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+#endif
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};
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struct target_statfs64 {
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@@ -2285,7 +2312,12 @@ struct target_statfs64 {
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target_fsid_t f_fsid;
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abi_long f_namelen;
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abi_long f_frsize;
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+#ifdef HAVE_STATFS_FLAGS
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+ abi_long f_flags;
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+ abi_long f_spare[4];
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+#else
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abi_long f_spare[5];
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+#endif
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};
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#elif defined(TARGET_S390X)
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struct target_statfs {
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@@ -2299,7 +2331,13 @@ struct target_statfs {
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kernel_fsid_t f_fsid;
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int32_t f_namelen;
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int32_t f_frsize;
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+#ifdef HAVE_STATFS_FLAGS
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+ int32_t f_flags;
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+ int32_t f_spare[4];
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+#else
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int32_t f_spare[5];
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+#endif
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+
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};
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struct target_statfs64 {
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@@ -2313,7 +2351,12 @@ struct target_statfs64 {
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kernel_fsid_t f_fsid;
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int32_t f_namelen;
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int32_t f_frsize;
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+#ifdef HAVE_STATFS_FLAGS
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+ int32_t f_flags;
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+ int32_t f_spare[4];
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+#else
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int32_t f_spare[5];
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+#endif
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};
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#else
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struct target_statfs {
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@@ -2327,7 +2370,12 @@ struct target_statfs {
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target_fsid_t f_fsid;
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uint32_t f_namelen;
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uint32_t f_frsize;
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+#ifdef HAVE_STATFS_FLAGS
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+ uint32_t f_flags;
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+ uint32_t f_spare[4];
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+#else
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uint32_t f_spare[5];
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+#endif
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};
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struct target_statfs64 {
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@@ -2341,7 +2389,12 @@ struct target_statfs64 {
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target_fsid_t f_fsid;
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uint32_t f_namelen;
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uint32_t f_frsize;
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+#ifdef HAVE_STATFS_FLAGS
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+ uint32_t f_flags;
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+ uint32_t f_spare[4];
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+#else
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uint32_t f_spare[5];
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+#endif
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};
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#endif
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