diff mbox series

[v3,1/2] configure: use pkg-config to find liburing

Message ID 20241219145608.3925261-1-maharmstone@fb.com (mailing list archive)
State New
Headers show
Series [v3,1/2] configure: use pkg-config to find liburing | expand

Commit Message

Mark Harmstone Dec. 19, 2024, 2:55 p.m. UTC 
Change our autoconf macros so that instead of checking for the presence
of liburing.h, we use pkg-config.

The benefit of this is that we can then check the version of liburing,
and do conditional compilation based on this. There's a macro
IO_URING_CHECK_VERSION already, but it's only in relatively recent
versions of liburing.h.

This replaces HAVE_URING_H, defined by AC_CHECK_HEADERS, with
HAVE_URING. I also had to rename PKG_{MAJOR,MINOR,REVISION,BUILD} to
start with PACKAGE_, to avoid "possibly undefined macro" errors; it
looks like pkg-config assumes that anything called PKG_* is for its own
use.

Signed-off-by: Mark Harmstone <maharmstone@fb.com>
---
 VERSION                         | 8 ++++----
 m4/package_globals.m4           | 4 ++--
 m4/package_liburing.m4          | 6 +++++-
 release.sh                      | 2 +-
 src/feature.c                   | 4 ++--
 src/vfs/idmapped-mounts.c       | 6 +++---
 src/vfs/idmapped-mounts.h       | 2 +-
 src/vfs/tmpfs-idmapped-mounts.c | 6 +++---
 src/vfs/utils.c                 | 4 ++--
 src/vfs/utils.h                 | 6 +++---
 src/vfs/vfstest.c               | 6 +++---
 11 files changed, 29 insertions(+), 25 deletions(-)
diff mbox series

Patch

diff --git a/VERSION b/VERSION
index 7294a002..afcab53e 100644
--- a/VERSION
+++ b/VERSION
@@ -1,7 +1,7 @@ 
 #
 # This file is used by configure to get version information
 #
-PKG_MAJOR=1
-PKG_MINOR=1
-PKG_REVISION=1
-PKG_BUILD=1
+PACKAGE_MAJOR=1
+PACKAGE_MINOR=1
+PACKAGE_REVISION=1
+PACKAGE_BUILD=1
diff --git a/m4/package_globals.m4 b/m4/package_globals.m4
index ce7a8c51..c8d5d124 100644
--- a/m4/package_globals.m4
+++ b/m4/package_globals.m4
@@ -9,9 +9,9 @@  AC_DEFUN([AC_PACKAGE_GLOBALS],
     AC_SUBST(pkg_name)
 
     . ./VERSION
-    pkg_version=${PKG_MAJOR}.${PKG_MINOR}.${PKG_REVISION}
+    pkg_version=${PACKAGE_MAJOR}.${PACKAGE_MINOR}.${PACKAGE_REVISION}
     AC_SUBST(pkg_version)
-    pkg_release=$PKG_BUILD
+    pkg_release=$PACKAGE_BUILD
     test -z "$BUILD_VERSION" || pkg_release="$BUILD_VERSION"
     AC_SUBST(pkg_release)
 
diff --git a/m4/package_liburing.m4 b/m4/package_liburing.m4
index c92cc02a..0553966d 100644
--- a/m4/package_liburing.m4
+++ b/m4/package_liburing.m4
@@ -1,4 +1,8 @@ 
 AC_DEFUN([AC_PACKAGE_WANT_URING],
-  [ AC_CHECK_HEADERS(liburing.h, [ have_uring=true ], [ have_uring=false ])
+  [ PKG_CHECK_MODULES([LIBURING], [liburing],
+    [ AC_DEFINE([HAVE_LIBURING], [1], [Use liburing])
+      have_uring=true
+    ],
+    [ have_uring=false ])
     AC_SUBST(have_uring)
   ])
diff --git a/release.sh b/release.sh
index 5b78ec79..70fbf47e 100644
--- a/release.sh
+++ b/release.sh
@@ -5,7 +5,7 @@ 
 
 . ./VERSION
 
-version=${PKG_MAJOR}.${PKG_MINOR}.${PKG_REVISION}
+version=${PACKAGE_MAJOR}.${PACKAGE_MINOR}.${PACKAGE_REVISION}
 date=`date +"%-d %B %Y"`
 
 echo "Cleaning up"
diff --git a/src/feature.c b/src/feature.c
index 7e474ce5..7df36acf 100644
--- a/src/feature.c
+++ b/src/feature.c
@@ -42,7 +42,7 @@ 
 #include <libaio.h>
 #endif
 
-#ifdef HAVE_LIBURING_H
+#ifdef HAVE_LIBURING
 #include <liburing.h>
 #endif
 
@@ -227,7 +227,7 @@  check_aio_support(void)
 static int
 check_uring_support(void)
 {
-#ifdef HAVE_LIBURING_H
+#ifdef HAVE_LIBURING
 	struct io_uring ring;
 	int err;
 
diff --git a/src/vfs/idmapped-mounts.c b/src/vfs/idmapped-mounts.c
index f4dfc3f3..ed9992f9 100644
--- a/src/vfs/idmapped-mounts.c
+++ b/src/vfs/idmapped-mounts.c
@@ -2206,7 +2206,7 @@  out:
 }
 
 
-#ifdef HAVE_LIBURING_H
+#ifdef HAVE_LIBURING
 int tcore_io_uring_idmapped(const struct vfstest_info *info)
 {
 	int fret = -1;
@@ -2743,7 +2743,7 @@  out_unmap:
 
 	return fret;
 }
-#endif /* HAVE_LIBURING_H */
+#endif /* HAVE_LIBURING */
 
 /* Validate that protected symlinks work correctly on idmapped mounts. */
 int tcore_protected_symlinks_idmapped_mounts(const struct vfstest_info *info)
@@ -8859,7 +8859,7 @@  static const struct test_struct t_idmapped_mounts[] = {
 	{ tcore_hardlink_crossing_idmapped_mounts,				true,	"cross idmapped mount hardlink",								},
 	{ tcore_hardlink_from_idmapped_mount,					true,	"hardlinks from idmapped mounts",								},
 	{ tcore_hardlink_from_idmapped_mount_in_userns,			true,	"hardlinks from idmapped mounts in user namespace",						},
-#ifdef HAVE_LIBURING_H
+#ifdef HAVE_LIBURING
 	{ tcore_io_uring_idmapped,						true,	"io_uring from idmapped mounts",								},
 	{ tcore_io_uring_idmapped_userns,					true,	"io_uring from idmapped mounts in user namespace",						},
 	{ tcore_io_uring_idmapped_unmapped,					true,	"io_uring from idmapped mounts with unmapped ids",						},
diff --git a/src/vfs/idmapped-mounts.h b/src/vfs/idmapped-mounts.h
index 4a2c7b39..688394c8 100644
--- a/src/vfs/idmapped-mounts.h
+++ b/src/vfs/idmapped-mounts.h
@@ -30,7 +30,7 @@  int tcore_fscaps_idmapped_mounts_in_userns_separate_userns(const struct vfstest_
 int tcore_hardlink_crossing_idmapped_mounts(const struct vfstest_info *info);
 int tcore_hardlink_from_idmapped_mount(const struct vfstest_info *info);
 int tcore_hardlink_from_idmapped_mount_in_userns(const struct vfstest_info *info);
-#ifdef HAVE_LIBURING_H
+#ifdef HAVE_LIBURING
 int tcore_io_uring_idmapped(const struct vfstest_info *info);
 int tcore_io_uring_idmapped_userns(const struct vfstest_info *info);
 int tcore_io_uring_idmapped_unmapped(const struct vfstest_info *info);
diff --git a/src/vfs/tmpfs-idmapped-mounts.c b/src/vfs/tmpfs-idmapped-mounts.c
index 0899aed9..d8212bce 100644
--- a/src/vfs/tmpfs-idmapped-mounts.c
+++ b/src/vfs/tmpfs-idmapped-mounts.c
@@ -167,7 +167,7 @@  static int tmpfs_hardlink_from_idmapped_mount_in_userns(const struct vfstest_inf
 	return tmpfs_nested_mount_setup(info, tcore_hardlink_from_idmapped_mount_in_userns);
 }
 
-#ifdef HAVE_LIBURING_H
+#ifdef HAVE_LIBURING
 static int tmpfs_io_uring_idmapped(const struct vfstest_info *info)
 {
 	return tmpfs_nested_mount_setup(info, tcore_io_uring_idmapped);
@@ -184,7 +184,7 @@  static int tmpfs_io_uring_idmapped_unmapped_userns(const struct vfstest_info *in
 {
 	return tmpfs_nested_mount_setup(info, tcore_io_uring_idmapped_unmapped_userns);
 }
-#endif /* HAVE_LIBURING_H */
+#endif /* HAVE_LIBURING */
 
 static int tmpfs_protected_symlinks_idmapped_mounts(const struct vfstest_info *info)
 {
@@ -272,7 +272,7 @@  static const struct test_struct t_tmpfs[] = {
 	{ tmpfs_hardlink_crossing_idmapped_mounts,				T_REQUIRE_USERNS | T_REQUIRE_IDMAPPED_MOUNTS,	"tmpfs cross idmapped mount hardlink",								},
 	{ tmpfs_hardlink_from_idmapped_mount,					T_REQUIRE_USERNS | T_REQUIRE_IDMAPPED_MOUNTS,	"tmpfs hardlinks from idmapped mounts",								},
 	{ tmpfs_hardlink_from_idmapped_mount_in_userns,				T_REQUIRE_USERNS | T_REQUIRE_IDMAPPED_MOUNTS,	"tmpfs hardlinks from idmapped mounts in user namespace",						},
-#ifdef HAVE_LIBURING_H
+#ifdef HAVE_LIBURING
 	{ tmpfs_io_uring_idmapped,						T_REQUIRE_USERNS | T_REQUIRE_IDMAPPED_MOUNTS,	"tmpfs io_uring from idmapped mounts",								      },
 	{ tmpfs_io_uring_idmapped_userns,					T_REQUIRE_USERNS | T_REQUIRE_IDMAPPED_MOUNTS,	"tmpfs io_uring from idmapped mounts in user namespace",					      },
 	{ tmpfs_io_uring_idmapped_unmapped,					T_REQUIRE_USERNS | T_REQUIRE_IDMAPPED_MOUNTS,	"tmpfs io_uring from idmapped mounts with unmapped ids",					      },
diff --git a/src/vfs/utils.c b/src/vfs/utils.c
index 0ab5de15..c1c7951c 100644
--- a/src/vfs/utils.c
+++ b/src/vfs/utils.c
@@ -502,7 +502,7 @@  out:
 	return fret;
 }
 
-#ifdef HAVE_LIBURING_H
+#ifdef HAVE_LIBURING
 int io_uring_openat_with_creds(struct io_uring *ring, int dfd, const char *path,
 			       int cred_id, bool with_link, int *ret_cqe)
 {
@@ -555,7 +555,7 @@  int io_uring_openat_with_creds(struct io_uring *ring, int dfd, const char *path,
 out:
 	return ret;
 }
-#endif /* HAVE_LIBURING_H */
+#endif /* HAVE_LIBURING */
 
 /* caps_up - raise all permitted caps */
 int caps_up(void)
diff --git a/src/vfs/utils.h b/src/vfs/utils.h
index 872fd96f..c086885a 100644
--- a/src/vfs/utils.h
+++ b/src/vfs/utils.h
@@ -25,7 +25,7 @@ 
 #include <sys/capability.h>
 #endif
 
-#ifdef HAVE_LIBURING_H
+#ifdef HAVE_LIBURING
 #include <liburing.h>
 #endif
 
@@ -349,11 +349,11 @@  static inline bool switch_fsids(uid_t fsuid, gid_t fsgid)
 	return true;
 }
 
-#ifdef HAVE_LIBURING_H
+#ifdef HAVE_LIBURING
 extern int io_uring_openat_with_creds(struct io_uring *ring, int dfd,
 				      const char *path, int cred_id,
 				      bool with_link, int *ret_cqe);
-#endif /* HAVE_LIBURING_H */
+#endif /* HAVE_LIBURING */
 
 extern int chown_r(int fd, const char *path, uid_t uid, gid_t gid);
 extern int rm_r(int fd, const char *path);
diff --git a/src/vfs/vfstest.c b/src/vfs/vfstest.c
index f842117d..e0c897bb 100644
--- a/src/vfs/vfstest.c
+++ b/src/vfs/vfstest.c
@@ -1222,7 +1222,7 @@  out:
 	return fret;
 }
 
-#ifdef HAVE_LIBURING_H
+#ifdef HAVE_LIBURING
 static int io_uring(const struct vfstest_info *info)
 {
 	int fret = -1;
@@ -1495,7 +1495,7 @@  out_unmap:
 
 	return fret;
 }
-#endif /* HAVE_LIBURING_H */
+#endif /* HAVE_LIBURING */
 
 /* The following tests are concerned with setgid inheritance. These can be
  * filesystem type specific. For xfs, if a new file or directory or node is
@@ -2349,7 +2349,7 @@  static const struct option longopts[] = {
 static const struct test_struct t_basic[] = {
 	{ fscaps,							T_REQUIRE_USERNS,	"fscaps on regular mounts",									},
 	{ hardlink_crossing_mounts,					0,			"cross mount hardlink",										},
-#ifdef HAVE_LIBURING_H
+#ifdef HAVE_LIBURING
 	{ io_uring,							0,			"io_uring",											},
 	{ io_uring_userns,						T_REQUIRE_USERNS,	"io_uring in user namespace",									},
 #endif