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| author | Luca Boccassi <bluca@debian.org> | 2022-05-25 14:41:47 +0100 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2022-05-26 12:56:12 +0930 |
| commit | 9e2bb0cb5e74aed4158f08495534922d7108f928 (patch) | |
| tree | ed3ed33aef50a4bd5e0f16d3072340a81d0d0b4f /ld/configure.ac | |
| parent | d1a24139adfb2f029c9d52a9c43da44a617f90a4 (diff) | |
| download | gdb-9e2bb0cb5e74aed4158f08495534922d7108f928.zip gdb-9e2bb0cb5e74aed4158f08495534922d7108f928.tar.gz gdb-9e2bb0cb5e74aed4158f08495534922d7108f928.tar.bz2 | |
ld: add --package-metadata
Generate a .note.package FDO package metadata ELF note, following
the spec: https://systemd.io/ELF_PACKAGE_METADATA/
If the jansson library is available at build time (and it is explicitly
enabled), link ld to it, and use it to validate that the input is
correct JSON, to avoid writing garbage to the file. The
configure option --enable-jansson has to be used to explicitly enable
it (error out when not found). This allows bootstrappers (or others who
are not interested) to seamlessly skip it without issues.
Diffstat (limited to 'ld/configure.ac')
| -rw-r--r-- | ld/configure.ac | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/ld/configure.ac b/ld/configure.ac index 0112148..4331d6b 100644 --- a/ld/configure.ac +++ b/ld/configure.ac @@ -289,6 +289,32 @@ fi AM_CONDITIONAL(ENABLE_LIBCTF, test "${enable_libctf}" = yes) AC_SUBST(enable_libctf) +# Used to validate --package-metadata= input. Disabled by default. +AC_ARG_ENABLE([jansson], + [AS_HELP_STRING([--enable-jansson], + [enable jansson [default=no]])], + [enable_jansson=$enableval], + [enable_jansson="no"]) + +if test "x$enable_jansson" != "xno"; then + PKG_PROG_PKG_CONFIG + AS_IF([test -n "$PKG_CONFIG"], + [ + PKG_CHECK_MODULES(JANSSON, [jansson], + [ + AC_DEFINE(HAVE_JANSSON, 1, [The jansson library is to be used]) + AC_SUBST([JANSSON_CFLAGS]) + AC_SUBST([JANSSON_LIBS]) + ], + [ + AC_MSG_ERROR([Cannot find jansson library]) + ]) + ], + [ + AC_MSG_ERROR([Cannot find pkg-config]) + ]) +fi + AM_BINUTILS_WARNINGS AM_LC_MESSAGES |