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| 1 | +commit d3282d2512774dc5027c98930a3852b2b6e8407a |
| 2 | +Author: Shea Levy <shea@shealevy.com> |
| 3 | +Date: Sun Feb 18 13:50:11 2018 -0500 |
| 4 | + |
| 5 | + linux-user: Support f_flags in statfs when available. |
| 6 | + |
| 7 | + Signed-off-by: Shea Levy <shea@shealevy.com> |
| 8 | + |
| 9 | +diff --git a/configure b/configure |
| 10 | +index 913e14839d..52fe2bf941 100755 |
| 11 | +--- a/configure |
| 12 | ++++ b/configure |
| 13 | +@@ -5303,6 +5303,22 @@ if compile_prog "" "" ; then |
| 14 | + have_utmpx=yes |
| 15 | + fi |
| 16 | + |
| 17 | ++########################################## |
| 18 | ++# Check for newer fields of struct statfs on Linux |
| 19 | ++ |
| 20 | ++if test "$linux_user" = "yes"; then |
| 21 | ++ cat > $TMPC <<EOF |
| 22 | ++#include <sys/vfs.h> |
| 23 | ++ |
| 24 | ++int main(void) { |
| 25 | ++ struct statfs fs; |
| 26 | ++ fs.f_flags = 0; |
| 27 | ++} |
| 28 | ++EOF |
| 29 | ++ if compile_object ; then |
| 30 | ++ have_statfs_flags=yes |
| 31 | ++ fi |
| 32 | ++fi |
| 33 | + ########################################## |
| 34 | + # checks for sanitizers |
| 35 | + |
| 36 | +@@ -6518,6 +6534,10 @@ if test "$have_utmpx" = "yes" ; then |
| 37 | + echo "HAVE_UTMPX=y" >> $config_host_mak |
| 38 | + fi |
| 39 | + |
| 40 | ++if test "$have_statfs_flags" = "yes" ; then |
| 41 | ++ echo "HAVE_STATFS_FLAGS=y" >> $config_host_mak |
| 42 | ++fi |
| 43 | ++ |
| 44 | + if test "$ivshmem" = "yes" ; then |
| 45 | + echo "CONFIG_IVSHMEM=y" >> $config_host_mak |
| 46 | + fi |
| 47 | +diff --git a/linux-user/syscall.c b/linux-user/syscall.c |
| 48 | +index 82b35a6bdf..77481eca2c 100644 |
| 49 | +--- a/linux-user/syscall.c |
| 50 | ++++ b/linux-user/syscall.c |
| 51 | +@@ -9534,6 +9534,9 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1, |
| 52 | + __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]); |
| 53 | + __put_user(stfs.f_namelen, &target_stfs->f_namelen); |
| 54 | + __put_user(stfs.f_frsize, &target_stfs->f_frsize); |
| 55 | ++#ifdef HAVE_STATFS_FLAGS |
| 56 | ++ __put_user(stfs.f_flags, &target_stfs->f_flags); |
| 57 | ++#endif |
| 58 | + memset(target_stfs->f_spare, 0, sizeof(target_stfs->f_spare)); |
| 59 | + unlock_user_struct(target_stfs, arg2, 1); |
| 60 | + } |
| 61 | +diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h |
| 62 | +index a35c52a60a..9f90451caf 100644 |
| 63 | +--- a/linux-user/syscall_defs.h |
| 64 | ++++ b/linux-user/syscall_defs.h |
| 65 | +@@ -362,7 +362,14 @@ struct kernel_statfs { |
| 66 | + int f_ffree; |
| 67 | + kernel_fsid_t f_fsid; |
| 68 | + int f_namelen; |
| 69 | ++#ifdef HAVE_STATFS_FLAGS |
| 70 | ++ int f_frsize; |
| 71 | ++ int f_flags; |
| 72 | ++ int f_spare[4]; |
| 73 | ++#else |
| 74 | + int f_spare[6]; |
| 75 | ++#endif |
| 76 | ++ |
| 77 | + }; |
| 78 | + |
| 79 | + struct target_dirent { |
| 80 | +@@ -2223,7 +2230,13 @@ struct target_statfs { |
| 81 | + /* Linux specials */ |
| 82 | + target_fsid_t f_fsid; |
| 83 | + int32_t f_namelen; |
| 84 | ++#ifdef HAVE_STATFS_FLAGS |
| 85 | ++ int32_t f_frsize; |
| 86 | ++ int32_t f_flags; |
| 87 | ++ int32_t f_spare[4]; |
| 88 | ++#else |
| 89 | + int32_t f_spare[6]; |
| 90 | ++#endif |
| 91 | + }; |
| 92 | + #else |
| 93 | + struct target_statfs { |
| 94 | +@@ -2239,7 +2252,13 @@ struct target_statfs { |
| 95 | + /* Linux specials */ |
| 96 | + target_fsid_t f_fsid; |
| 97 | + abi_long f_namelen; |
| 98 | ++#ifdef HAVE_STATFS_FLAGS |
| 99 | ++ abi_long f_frsize; |
| 100 | ++ abi_long f_flags; |
| 101 | ++ abi_long f_spare[4]; |
| 102 | ++#else |
| 103 | + abi_long f_spare[6]; |
| 104 | ++#endif |
| 105 | + }; |
| 106 | + #endif |
| 107 | + |
| 108 | +@@ -2255,7 +2274,13 @@ struct target_statfs64 { |
| 109 | + uint64_t f_bavail; |
| 110 | + target_fsid_t f_fsid; |
| 111 | + uint32_t f_namelen; |
| 112 | ++#ifdef HAVE_STATFS_FLAGS |
| 113 | ++ uint32_t f_frsize; |
| 114 | ++ uint32_t f_flags; |
| 115 | ++ uint32_t f_spare[4]; |
| 116 | ++#else |
| 117 | + uint32_t f_spare[6]; |
| 118 | ++#endif |
| 119 | + }; |
| 120 | + #elif (defined(TARGET_PPC64) || defined(TARGET_X86_64) || \ |
| 121 | + defined(TARGET_SPARC64) || defined(TARGET_AARCH64)) && \ |
| 122 | +@@ -2271,7 +2296,12 @@ struct target_statfs { |
| 123 | + target_fsid_t f_fsid; |
| 124 | + abi_long f_namelen; |
| 125 | + abi_long f_frsize; |
| 126 | ++#ifdef HAVE_STATFS_FLAGS |
| 127 | ++ abi_long f_flags; |
| 128 | ++ abi_long f_spare[4]; |
| 129 | ++#else |
| 130 | + abi_long f_spare[5]; |
| 131 | ++#endif |
| 132 | + }; |
| 133 | + |
| 134 | + struct target_statfs64 { |
| 135 | +@@ -2285,7 +2315,12 @@ struct target_statfs64 { |
| 136 | + target_fsid_t f_fsid; |
| 137 | + abi_long f_namelen; |
| 138 | + abi_long f_frsize; |
| 139 | ++#ifdef HAVE_STATFS_FLAGS |
| 140 | ++ abi_long f_flags; |
| 141 | ++ abi_long f_spare[4]; |
| 142 | ++#else |
| 143 | + abi_long f_spare[5]; |
| 144 | ++#endif |
| 145 | + }; |
| 146 | + #elif defined(TARGET_S390X) |
| 147 | + struct target_statfs { |
| 148 | +@@ -2299,7 +2334,13 @@ struct target_statfs { |
| 149 | + kernel_fsid_t f_fsid; |
| 150 | + int32_t f_namelen; |
| 151 | + int32_t f_frsize; |
| 152 | ++#ifdef HAVE_STATFS_FLAGS |
| 153 | ++ int32_t f_flags; |
| 154 | ++ int32_t f_spare[4]; |
| 155 | ++#else |
| 156 | + int32_t f_spare[5]; |
| 157 | ++#endif |
| 158 | ++ |
| 159 | + }; |
| 160 | + |
| 161 | + struct target_statfs64 { |
| 162 | +@@ -2313,7 +2354,12 @@ struct target_statfs64 { |
| 163 | + kernel_fsid_t f_fsid; |
| 164 | + int32_t f_namelen; |
| 165 | + int32_t f_frsize; |
| 166 | ++#ifdef HAVE_STATFS_FLAGS |
| 167 | ++ int32_t f_flags; |
| 168 | ++ int32_t f_spare[4]; |
| 169 | ++#else |
| 170 | + int32_t f_spare[5]; |
| 171 | ++#endif |
| 172 | + }; |
| 173 | + #else |
| 174 | + struct target_statfs { |
| 175 | +@@ -2327,7 +2373,12 @@ struct target_statfs { |
| 176 | + target_fsid_t f_fsid; |
| 177 | + uint32_t f_namelen; |
| 178 | + uint32_t f_frsize; |
| 179 | ++#ifdef HAVE_STATFS_FLAGS |
| 180 | ++ uint32_t f_flags; |
| 181 | ++ uint32_t f_spare[4]; |
| 182 | ++#else |
| 183 | + uint32_t f_spare[5]; |
| 184 | ++#endif |
| 185 | + }; |
| 186 | + |
| 187 | + struct target_statfs64 { |
| 188 | +@@ -2341,7 +2392,12 @@ struct target_statfs64 { |
| 189 | + target_fsid_t f_fsid; |
| 190 | + uint32_t f_namelen; |
| 191 | + uint32_t f_frsize; |
| 192 | ++#ifdef HAVE_STATFS_FLAGS |
| 193 | ++ uint32_t f_flags; |
| 194 | ++ uint32_t f_spare[4]; |
| 195 | ++#else |
| 196 | + uint32_t f_spare[5]; |
| 197 | ++#endif |
| 198 | + }; |
| 199 | + #endif |
| 200 | + |
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