External software wanting to use the functionality provided by the btrfs send ioctl has a hard time doing so without replicating tons of work. Of particular interest are functions like btrfs_read_and_process_send_stream() and subvol_uuid_search(). As that functionality requires a bit more than just send-stream.c and send-utils.c we have to pull in some other parts of the progs package.
This patch adds code to the Makefile and headers to create a library, libbtrfs which the btrfs command now links to. Signed-off-by: Mark Fasheh <mfas...@suse.de> --- Makefile | 85 +++++++++++++++++++++++++++++++++++--------------------- btrfs-list.h | 4 +++ crc32c.h | 4 +++ ctree.h | 9 ++++++ extent-cache.h | 6 ++++ extent_io.h | 7 +++++ radix-tree.h | 4 +++ rbtree.h | 4 +++ send-utils.h | 5 ++++ 9 files changed, 97 insertions(+), 31 deletions(-) diff --git a/Makefile b/Makefile index 4894903..c5f5aa0 100644 --- a/Makefile +++ b/Makefile @@ -1,14 +1,17 @@ CC = gcc -AM_CFLAGS = -Wall -D_FILE_OFFSET_BITS=64 -D_FORTIFY_SOURCE=2 -CFLAGS = -g -O1 +AM_CFLAGS = -Wall -D_FILE_OFFSET_BITS=64 -D_FORTIFY_SOURCE=2 -DBTRFS_FLAT_INCLUDES +CFLAGS = -g -O1 -fPIC objects = ctree.o disk-io.o radix-tree.o extent-tree.o print-tree.o \ - root-tree.o dir-item.o file-item.o inode-item.o \ - inode-map.o crc32c.o rbtree.o extent-cache.o extent_io.o \ - volumes.o utils.o btrfs-list.o btrfslabel.o repair.o \ - send-stream.o send-utils.o qgroup.o + root-tree.o dir-item.o file-item.o inode-item.o inode-map.o \ + extent-cache.o extent_io.o volumes.o utils.o btrfslabel.o repair.o \ + qgroup.o cmds_objects = cmds-subvolume.o cmds-filesystem.o cmds-device.o cmds-scrub.o \ cmds-inspect.o cmds-balance.o cmds-send.o cmds-receive.o \ cmds-quota.o cmds-qgroup.o +libbtrfs_objects = send-stream.o send-utils.o rbtree.o btrfs-list.o crc32c.o +libbtrfs_headers = send-stream.h send-utils.h send.h rbtree.h btrfs-list.h \ + crc32c.h list.h kerncompat.h radix-tree.h extent-cache.h \ + extent_io.h ioctl.h ctree.h CHECKFLAGS= -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ -Wbitwise \ -Wuninitialized -Wshadow -Wundef @@ -17,13 +20,20 @@ DEPFLAGS = -Wp,-MMD,$(@D)/.$(@F).d,-MT,$@ INSTALL = install prefix ?= /usr/local bindir = $(prefix)/bin -LIBS=-luuid -lm +libdir = $(prefix)/lib +incdir = $(prefix)/include/btrfs +lib_LIBS=-luuid -lm -L. +LIBS=$(lib_LIBS) -lbtrfs RESTORE_LIBS=-lz progs = btrfsctl mkfs.btrfs btrfs-debug-tree btrfs-show btrfs-vol btrfsck \ btrfs btrfs-map-logical btrfs-image btrfs-zero-log btrfs-convert \ btrfs-find-root btrfs-restore btrfstune +libs = libbtrfs.so.1.0 +lib_links = libbtrfs.so.1 libbtrfs.so +headers = $(libbtrfs_headers) + # make C=1 to enable sparse ifdef C check = sparse $(CHECKFLAGS) @@ -36,70 +46,77 @@ endif $(CC) $(DEPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c $< -all: version $(progs) manpages +all: version $(libs) $(progs) manpages version: bash version.sh -btrfs: $(objects) btrfs.o help.o common.o $(cmds_objects) +$(libs): $(libbtrfs_objects) $(lib_links) send.h + $(CC) $(CFLAGS) $(libbtrfs_objects) $(lib_LIBS) -shared -Wl,-soname,libbtrfs.so.1 -o libbtrfs.so.1.0 + +$(lib_links): + ln -sf libbtrfs.so.1.0 libbtrfs.so.1 + ln -sf libbtrfs.so.1.0 libbtrfs.so + +btrfs: $(objects) btrfs.o help.o common.o $(cmds_objects) $(libs) $(CC) $(CFLAGS) -o btrfs btrfs.o help.o common.o $(cmds_objects) \ $(objects) $(LDFLAGS) $(LIBS) -lpthread -calc-size: $(objects) calc-size.o +calc-size: $(objects) $(libs) calc-size.o $(CC) $(CFLAGS) -o calc-size calc-size.o $(objects) $(LDFLAGS) $(LIBS) -btrfs-find-root: $(objects) find-root.o +btrfs-find-root: $(objects) $(libs) find-root.o $(CC) $(CFLAGS) -o btrfs-find-root find-root.o $(objects) $(LDFLAGS) $(LIBS) -btrfs-restore: $(objects) restore.o +btrfs-restore: $(objects) $(libs) restore.o $(CC) $(CFLAGS) -o btrfs-restore restore.o $(objects) $(LDFLAGS) $(LIBS) $(RESTORE_LIBS) -btrfsctl: $(objects) btrfsctl.o +btrfsctl: $(objects) $(libs) btrfsctl.o $(CC) $(CFLAGS) -o btrfsctl btrfsctl.o $(objects) $(LDFLAGS) $(LIBS) -btrfs-vol: $(objects) btrfs-vol.o +btrfs-vol: $(objects) $(libs) btrfs-vol.o $(CC) $(CFLAGS) -o btrfs-vol btrfs-vol.o $(objects) $(LDFLAGS) $(LIBS) -btrfs-show: $(objects) btrfs-show.o +btrfs-show: $(objects) $(libs) btrfs-show.o $(CC) $(CFLAGS) -o btrfs-show btrfs-show.o $(objects) $(LDFLAGS) $(LIBS) -btrfsck: $(objects) btrfsck.o +btrfsck: $(objects) $(libs) btrfsck.o $(CC) $(CFLAGS) -o btrfsck btrfsck.o $(objects) $(LDFLAGS) $(LIBS) -mkfs.btrfs: $(objects) mkfs.o +mkfs.btrfs: $(objects) $(libs) mkfs.o $(CC) $(CFLAGS) -o mkfs.btrfs $(objects) mkfs.o $(LDFLAGS) $(LIBS) -btrfs-debug-tree: $(objects) debug-tree.o +btrfs-debug-tree: $(objects) $(libs) debug-tree.o $(CC) $(CFLAGS) -o btrfs-debug-tree $(objects) debug-tree.o $(LDFLAGS) $(LIBS) -btrfs-zero-log: $(objects) btrfs-zero-log.o +btrfs-zero-log: $(objects) $(libs) btrfs-zero-log.o $(CC) $(CFLAGS) -o btrfs-zero-log $(objects) btrfs-zero-log.o $(LDFLAGS) $(LIBS) -btrfs-select-super: $(objects) btrfs-select-super.o +btrfs-select-super: $(objects) $(libs) btrfs-select-super.o $(CC) $(CFLAGS) -o btrfs-select-super $(objects) btrfs-select-super.o $(LDFLAGS) $(LIBS) -btrfstune: $(objects) btrfstune.o +btrfstune: $(objects) $(libs) btrfstune.o $(CC) $(CFLAGS) -o btrfstune $(objects) btrfstune.o $(LDFLAGS) $(LIBS) -btrfs-map-logical: $(objects) btrfs-map-logical.o +btrfs-map-logical: $(objects) $(libs) btrfs-map-logical.o $(CC) $(CFLAGS) -o btrfs-map-logical $(objects) btrfs-map-logical.o $(LDFLAGS) $(LIBS) -btrfs-corrupt-block: $(objects) btrfs-corrupt-block.o +btrfs-corrupt-block: $(objects) $(libs) btrfs-corrupt-block.o $(CC) $(CFLAGS) -o btrfs-corrupt-block $(objects) btrfs-corrupt-block.o $(LDFLAGS) $(LIBS) -btrfs-image: $(objects) btrfs-image.o +btrfs-image: $(objects) $(libs) btrfs-image.o $(CC) $(CFLAGS) -o btrfs-image $(objects) btrfs-image.o -lpthread -lz $(LDFLAGS) $(LIBS) -dir-test: $(objects) dir-test.o +dir-test: $(objects) $(libs) dir-test.o $(CC) $(CFLAGS) -o dir-test $(objects) dir-test.o $(LDFLAGS) $(LIBS) -quick-test: $(objects) quick-test.o +quick-test: $(objects) $(libs) quick-test.o $(CC) $(CFLAGS) -o quick-test $(objects) quick-test.o $(LDFLAGS) $(LIBS) -btrfs-convert: $(objects) convert.o +btrfs-convert: $(objects) $(libs) convert.o $(CC) $(CFLAGS) -o btrfs-convert $(objects) convert.o -lext2fs -lcom_err $(LDFLAGS) $(LIBS) -ioctl-test: $(objects) ioctl-test.o +ioctl-test: $(objects) $(libs) ioctl-test.o $(CC) $(CFLAGS) -o ioctl-test $(objects) ioctl-test.o $(LDFLAGS) $(LIBS) manpages: @@ -109,12 +126,18 @@ install-man: cd man; $(MAKE) install clean : - rm -f $(progs) cscope.out *.o .*.d btrfs-convert btrfs-image btrfs-select-super \ - btrfs-zero-log btrfstune dir-test ioctl-test quick-test version.h + rm -f $(progs) $(libs) cscope.out *.o .*.d btrfs-convert btrfs-image \ + btrfs-select-super btrfs-zero-log btrfstune dir-test ioctl-test \ + quick-test version.h cd man; $(MAKE) clean -install: $(progs) install-man +install: $(libs) $(progs) install-man $(INSTALL) -m755 -d $(DESTDIR)$(bindir) $(INSTALL) $(progs) $(DESTDIR)$(bindir) + $(INSTALL) -m755 -d $(DESTDIR)$(libdir) + $(INSTALL) $(libs) $(DESTDIR)$(libdir) + cp -a $(lib_links) $(DESTDIR)$(libdir) + $(INSTALL) -m755 -d $(DESTDIR)$(incdir) + $(INSTALL) $(headers) $(DESTDIR)$(incdir) -include .*.d diff --git a/btrfs-list.h b/btrfs-list.h index cde4b3c..da6bf1c 100644 --- a/btrfs-list.h +++ b/btrfs-list.h @@ -16,7 +16,11 @@ * Boston, MA 021110-1307, USA. */ +#if BTRFS_FLAT_INCLUDES #include "kerncompat.h" +#else +#include <btrfs/kerncompat.h> +#endif /* BTRFS_FLAT_INCLUDES */ struct root_info; diff --git a/crc32c.h b/crc32c.h index 7f12e77..c552ef6 100644 --- a/crc32c.h +++ b/crc32c.h @@ -19,7 +19,11 @@ #ifndef __CRC32C__ #define __CRC32C__ +#if BTRFS_FLAT_INCLUDES #include "kerncompat.h" +#else +#include <btrfs/kerncompat.h> +#endif /* BTRFS_FLAT_INCLUDES */ u32 crc32c_le(u32 seed, unsigned char const *data, size_t length); void crc32c_optimization_init(void); diff --git a/ctree.h b/ctree.h index 293b24f..7a1ffce 100644 --- a/ctree.h +++ b/ctree.h @@ -19,12 +19,21 @@ #ifndef __BTRFS__ #define __BTRFS__ +#if BTRFS_FLAT_INCLUDES #include "list.h" #include "kerncompat.h" #include "radix-tree.h" #include "extent-cache.h" #include "extent_io.h" #include "ioctl.h" +#else +#include <btrfs/list.h> +#include <btrfs/kerncompat.h> +#include <btrfs/radix-tree.h> +#include <btrfs/extent-cache.h> +#include <btrfs/extent_io.h> +#include <btrfs/ioctl.h> +#endif /* BTRFS_FLAT_INCLUDES */ struct btrfs_root; struct btrfs_trans_handle; diff --git a/extent-cache.h b/extent-cache.h index 7f2f2a6..4cd0f79 100644 --- a/extent-cache.h +++ b/extent-cache.h @@ -18,8 +18,14 @@ #ifndef __PENDING_EXTENT__ #define __PENDING_EXTENT__ + +#if BTRFS_FLAT_INCLUDES #include "kerncompat.h" #include "rbtree.h" +#else +#include <btrfs/kerncompat.h> +#include <btrfs/rbtree.h> +#endif /* BTRFS_FLAT_INCLUDES */ struct cache_tree { struct rb_root root; diff --git a/extent_io.h b/extent_io.h index a5d6bf0..4553859 100644 --- a/extent_io.h +++ b/extent_io.h @@ -18,9 +18,16 @@ #ifndef __EXTENTMAP__ #define __EXTENTMAP__ + +#if BTRFS_FLAT_INCLUDES #include "kerncompat.h" #include "extent-cache.h" #include "list.h" +#else +#include <btrfs/kerncompat.h> +#include <btrfs/extent-cache.h> +#include <btrfs/list.h> +#endif /* BTRFS_FLAT_INCLUDES */ #define EXTENT_DIRTY 1 #define EXTENT_WRITEBACK (1 << 1) diff --git a/radix-tree.h b/radix-tree.h index d99ea7e..bf96d83 100644 --- a/radix-tree.h +++ b/radix-tree.h @@ -37,7 +37,11 @@ #ifndef _LINUX_RADIX_TREE_H #define _LINUX_RADIX_TREE_H +#if BTRFS_FLAT_INCLUDES #include "kerncompat.h" +#else +#include <btrfs/kerncompat.h> +#endif /* BTRFS_FLAT_INCLUDES */ #define RADIX_TREE_MAX_TAGS 2 diff --git a/rbtree.h b/rbtree.h index bed054d..b636ddd 100644 --- a/rbtree.h +++ b/rbtree.h @@ -93,7 +93,11 @@ static inline struct page * rb_insert_page_cache(struct inode * inode, #ifndef _LINUX_RBTREE_H #define _LINUX_RBTREE_H +#if BTRFS_FLAT_INCLUDES #include "kerncompat.h" +#else +#include <btrfs/kerncompat.h> +#endif /* BTRFS_FLAT_INCLUDES */ struct rb_node { unsigned long rb_parent_color; diff --git a/send-utils.h b/send-utils.h index da407eb..8040c50 100644 --- a/send-utils.h +++ b/send-utils.h @@ -18,8 +18,13 @@ #ifndef SEND_UTILS_H_ #define SEND_UTILS_H_ +#if BTRFS_FLAT_INCLUDES #include "ctree.h" #include "rbtree.h" +#else +#include <btrfs/ctree.h> +#include <btrfs/rbtree.h> +#endif /* BTRFS_FLAT_INCLUDES */ enum subvol_search_type { subvol_search_by_root_id, -- 1.7.10.4 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