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Diffstat (limited to 'mcon/U/d_dliterphdr.U')
| -rw-r--r-- | mcon/U/d_dliterphdr.U | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/mcon/U/d_dliterphdr.U b/mcon/U/d_dliterphdr.U new file mode 100644 index 0000000..fd6e2b7 --- /dev/null +++ b/mcon/U/d_dliterphdr.U @@ -0,0 +1,44 @@ +?RCS: $Id$ +?RCS: +?RCS: Copyright (c) 2012, Raphael Manfredi +?RCS: +?RCS: You may redistribute only under the terms of the Artistic License, +?RCS: as specified in the README file that comes with the distribution. +?RCS: You may reuse parts of this distribution only within the terms of +?RCS: that same Artistic License; a copy of which may be found at the root +?RCS: of the source tree for dist 4.0. +?RCS: +?MAKE:d_dliterphdr: Trylink cat +?MAKE: -pick add $@ %< +?S:d_dliterphdr: +?S: This variable conditionally defines HAS_DL_ITERATE_PHDR when +?S: dl_iterate_phdr() is available to walk through the list of shared +?S: objects. +?S:. +?C:HAS_DL_ITERATE_PHDR: +?C: This symbol, if defined, indicates that the dl_iterate_phdr() function is +?C: available to walk through the list of shared objects. One needs to +?C: define _GNU_SOURCE before including <link.h> to get the proper signature. +?C:. +?H:#$d_dliterphdr HAS_DL_ITERATE_PHDR /**/ +?H:. +?LINT:set d_dliterphdr +: see if dl_iterate_phdr exists +$cat >try.c <<EOC +#define _GNU_SOURCE +#include <link.h> +int cb(struct dl_phdr_info *info, size_t size, void *data) +{ + return NULL == info && NULL == data && size != 0 ? 0 : 1; +} +int main(void) +{ + int ret; + ret = dl_iterate_phdr(cb, NULL); + return ret ? 0 : 1; +} +EOC +cyn=dl_iterate_phdr +set d_dliterphdr +eval $trylink + |