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authorNick Alcock <nick.alcock@oracle.com>2019-07-20 14:45:12 +0100
committerNick Alcock <nick.alcock@oracle.com>2019-10-03 17:04:56 +0100
commit87279e3cef5b2c54f4a01962cf9dcea38664a336 (patch)
tree2f972035efea4b029156d1bcea5f37a4cdb8ef82 /include
parent1ff6de031241c59d0ff9fa01d3c0a4049b0e97c9 (diff)
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libctf: installable libctf as a shared library
This lets other programs read and write CTF-format data. Two versioned shared libraries are created: libctf.so and libctf-nobfd.so. They contain identical content except that libctf-nobfd.so contains no references to libbfd and does not implement ctf_open, ctf_fdopen, ctf_bfdopen or ctf_bfdopen_ctfsect, so it can be used by programs that cannot use BFD, like readelf. The soname major version is presently .0 until the linker API stabilizes, when it will flip to .1 and hopefully never change again. New in v3. v4: libtoolize and turn into a pair of shared libraries. Drop --enable-install-ctf: now controlled by --enable-shared and --enable-install-libbfd, like everything else. v5: Add ../bfd to ACLOCAL_AMFLAGS and AC_CONFIG_MACRO_DIR. Fix tabdamage. * Makefile.def (host_modules): libctf is no longer no_install. * Makefile.in: Regenerated. libctf/ * configure.ac (AC_DISABLE_SHARED): New, like opcodes/. (LT_INIT): Likewise. (AM_INSTALL_LIBBFD): Likewise. (dlopen): Note why this is necessary in a comment. (SHARED_LIBADD): Initialize for possibly-PIC libiberty: derived from opcodes/. (SHARED_LDFLAGS): Likewise. (BFD_LIBADD): Likewise, for libbfd. (BFD_DEPENDENCIES): Likewise. (VERSION_FLAGS): Initialize, using a version script if ld supports one, or libtool -export-symbols-regex otherwise. (AC_CONFIG_MACRO_DIR): Add ../BFD. * Makefile.am (ACLOCAL_AMFLAGS): Likewise. (INCDIR): New. (AM_CPPFLAGS): Use $(srcdir), not $(top_srcdir). (noinst_LIBRARIES): Replace with... [INSTALL_LIBBFD] (lib_LTLIBRARIES): This, or... [!INSTALL_LIBBFD] (noinst_LTLIBRARIES): ... this, mentioning new libctf-nobfd.la as well. [INSTALL_LIBCTF] (include_HEADERS): Add the CTF headers. [!INSTALL_LIBCTF] (include_HEADERS): New, empty. (libctf_a_SOURCES): Rename to... (libctf_nobfd_la_SOURCES): ... this, all of libctf other than ctf-open-bfd.c. (libctf_la_SOURCES): Now derived from libctf_nobfd_la_SOURCES, with ctf-open-bfd.c added. (libctf_nobfd_la_LIBADD): New, using @SHARED_LIBADD@. (libctf_la_LIBADD): New, using @BFD_LIBADD@ as well. (libctf_la_DEPENDENCIES): New, using @BFD_DEPENDENCIES@. * Makefile.am [INSTALL_LIBCTF]: Use it. * aclocal.m4: Add ../bfd/acinclude.m4, ../config/acx.m4, and the libtool macros. * libctf.ver: New, everything is version LIBCTF_1.0 currently (even the unstable components). * Makefile.in: Regenerated. * config.h.in: Likewise. * configure: Likewise. binutils/ * Makefile.am (LIBCTF): Mention the .la file. (LIBCTF_NOBFD): New. (readelf_DEPENDENCIES): Use it. (readelf_LDADD): Likewise. * Makefile.in: Regenerated. ld/ * configure.ac (TESTCTFLIB): Set to the .so or .a, like TESTBFDLIB. * Makefile.am (TESTCTFLIB): Use it. (LIBCTF): Use the .la file. (check-DEJAGNU): Use it. * Makefile.in: Regenerated. * configure: Likewise. include/ * ctf-api.h: Note the instability of the ctf_link interfaces.
Diffstat (limited to 'include')
-rw-r--r--include/ChangeLog4
-rw-r--r--include/ctf-api.h2
2 files changed, 6 insertions, 0 deletions
diff --git a/include/ChangeLog b/include/ChangeLog
index 184cbce..a0d3c10 100644
--- a/include/ChangeLog
+++ b/include/ChangeLog
@@ -1,3 +1,7 @@
+2019-09-23 Nick Alcock <nick.alcock@oracle.com>
+
+ * ctf-api.h: Note the instability of the ctf_link interfaces.
+
2019-07-13 Nick Alcock <nick.alcock@oracle.com>
* bfdlink.h (elf_strtab_hash): New forward.
diff --git a/include/ctf-api.h b/include/ctf-api.h
index f50bb0a..674860d 100644
--- a/include/ctf-api.h
+++ b/include/ctf-api.h
@@ -408,6 +408,8 @@ extern int ctf_gzwrite (ctf_file_t *fp, gzFile fd);
extern int ctf_compress_write (ctf_file_t * fp, int fd);
extern unsigned char *ctf_write_mem (ctf_file_t *, size_t *, size_t threshold);
+/* The ctf_link interfaces are not stable yet. No guarantees! */
+
extern int ctf_link_add_ctf (ctf_file_t *, ctf_archive_t *, const char *);
extern int ctf_link (ctf_file_t *, int share_mode);
typedef const char *ctf_link_strtab_string_f (uint32_t *offset, void *arg);