Modern distros (e.g. fedora30) are starting to use the new statx() syscall through the newly exposed glibc wrapper function in software like coreutils (e.g. the ls command). Add support to intercept this to pseudo.
Signed-off-by: Richard Purdie <[email protected]> --- ports/linux/guts/statx.c | 48 ++++++++++++++++++++++++++++++++++++++++ ports/linux/portdefs.h | 1 + ports/linux/wrapfuncs.in | 1 + 3 files changed, 50 insertions(+) create mode 100644 ports/linux/guts/statx.c diff --git a/ports/linux/statx/guts/statx.c b/ports/linux/statx/guts/statx.c new file mode 100644 index 0000000..a3259c4 --- /dev/null +++ b/ports/linux/statx/guts/statx.c @@ -0,0 +1,42 @@ +/* + * Copyright (c) 2019 Linux Foundation + * Author: Richard Purdie + * + * SPDX-License-Identifier: LGPL-2.1-only + * + * int + * statx(int dirfd, const char *pathname, int flags, unsigned int mask, struct statx *statxbuf) { + * int rc = -1; + */ + pseudo_msg_t *msg; + PSEUDO_STATBUF buf; + int save_errno; + + rc = real_statx(dirfd, pathname, flags, mask, statxbuf); + save_errno = errno; + if (rc == -1) { + return rc; + } + + buf.st_uid = statxbuf->stx_uid; + buf.st_gid = statxbuf->stx_gid; + buf.st_dev = makedev(statxbuf->stx_dev_major, statxbuf->stx_dev_minor); + buf.st_ino = statxbuf->stx_ino; + buf.st_mode = statxbuf->stx_mode; + buf.st_rdev = makedev(statxbuf->stx_rdev_major, statxbuf->stx_rdev_minor); + buf.st_nlink = statxbuf->stx_nlink; + msg = pseudo_client_op(OP_STAT, 0, -1, dirfd, pathname, &buf); + if (msg && msg->result == RESULT_SUCCEED) { + pseudo_debug(PDBGF_FILE, "statx(path %s), flags %o, stat rc %d, stat uid %o\n", pathname, flags, rc, statxbuf->stx_uid); + statxbuf->stx_uid = msg->uid; + statxbuf->stx_gid = msg->gid; + statxbuf->stx_mode = msg->mode; + statxbuf->stx_rdev_major = major(msg->rdev); + statxbuf->stx_rdev_minor = minor(msg->rdev); + } else { + pseudo_debug(PDBGF_FILE, "statx(path %s) failed, flags %o, stat rc %d, stat uid %o\n", pathname, flags, rc, statxbuf->stx_uid); + } + errno = save_errno; +/* return rc; + * } + */ diff --git a/ports/linux/statx/portdefs.h b/ports/linux/statx/portdefs.h new file mode 100644 index 0000000..bf934dc --- /dev/null +++ b/ports/linux/statx/portdefs.h @@ -0,0 +1,6 @@ +/* + * SPDX-License-Identifier: LGPL-2.1-only + * + */ +#include <sys/stat.h> +#include <sys/sysmacros.h> diff --git a/ports/linux/statx/wrapfuncs.in b/ports/linux/statx/wrapfuncs.in new file mode 100644 index 0000000..c9cd4c3 --- /dev/null +++ b/ports/linux/statx/wrapfuncs.in @@ -0,0 +1 @@ +int statx(int dirfd, const char *pathname, int flags, unsigned int mask, struct statx *statxbuf); diff --git a/ports/linux/subports b/ports/linux/subports index a29044a..49081bf 100755 --- a/ports/linux/subports +++ b/ports/linux/subports @@ -54,3 +54,13 @@ else fi rm -f dummy.c dummy.o +cat > dummy.c <<EOF +#define _GNU_SOURCE +#include <sys/stat.h> +struct statx x; +EOF +if ${CC} -c -o dummy.o dummy.c >/dev/null 2>&1; then + echo "linux/statx" +fi +rm -f dummy.c dummy.o + -- _______________________________________________ Openembedded-core mailing list [email protected] http://lists.openembedded.org/mailman/listinfo/openembedded-core
