diff options
Diffstat (limited to 'dlfcn')
| -rw-r--r-- | dlfcn/Makefile | 15 | ||||
| -rw-r--r-- | dlfcn/modatexit.c | 41 | ||||
| -rw-r--r-- | dlfcn/modcxaatexit.c | 39 | ||||
| -rw-r--r-- | dlfcn/tstatexit.c | 63 | ||||
| -rw-r--r-- | dlfcn/tstcxaatexit.c | 63 |
5 files changed, 218 insertions, 3 deletions
diff --git a/dlfcn/Makefile b/dlfcn/Makefile index 1bcce2f..87dc60a 100644 --- a/dlfcn/Makefile +++ b/dlfcn/Makefile @@ -21,7 +21,8 @@ headers := bits/dlfcn.h dlfcn.h extra-libs := libdl libdl-routines := dlopen dlclose dlsym dlvsym dlerror dladdr eval distribute := dlopenold.c glreflib1.c glreflib2.c failtestmod.c eval.c \ - defaultmod1.c defaultmod2.c errmsg1mod.c + defaultmod1.c defaultmod2.c errmsg1mod.c modatexit.c \ + modcxaatexit.c extra-libs-others := libdl @@ -34,10 +35,10 @@ endif libdl-shared-only-routines += eval ifeq (yes,$(build-shared)) -tests = glrefmain failtest tst-dladdr default errmsg1 +tests = glrefmain failtest tst-dladdr default errmsg1 tstatexit tstcxaatexit endif modules-names = glreflib1 glreflib2 failtestmod defaultmod1 defaultmod2 \ - errmsg1mod + errmsg1mod modatexit modcxaatexit extra-objs += $(modules-names:=.os) eval.os generated := $(modules-names:=.so) @@ -67,3 +68,11 @@ $(objpfx)defaultmod2.so: $(libdl) $(objpfx)errmsg1: $(libdl) $(objpfx)errmsg1.out: $(objpfx)errmsg1 $(objpfx)errmsg1mod.so + +$(objpfx)tstatexit: $(libdl) +$(objpfx)tstatexit.out: $(objpfx)tstatexit $(objpfx)modatexit.so + +$(objpfx)tstcxaatexit: $(libdl) +$(objpfx)tstcxaatexit.out: $(objpfx)tstcxaatexit $(objpfx)modcxaatexit.so + +$(objpfx)modatexit.so: $(common-objpfx)libc.so $(common-objpfx)libc_nonshared.a diff --git a/dlfcn/modatexit.c b/dlfcn/modatexit.c new file mode 100644 index 0000000..110fead --- /dev/null +++ b/dlfcn/modatexit.c @@ -0,0 +1,41 @@ +/* Copyright (C) 2001 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <stdio.h> +#include <stdlib.h> + +int global; +int *ip; + +void +dummy (void) +{ + printf ("This is %s\n", __FUNCTION__); + *ip = global = 1; +} + + +void +foo (void *p) +{ + extern void *__dso_handle __attribute__ ((__weak__)); + printf ("This is %s\n", __FUNCTION__); + atexit (dummy); + if (&__dso_handle) puts ("have dso handle"); else puts ("no dso handle"); + ip = p; +} diff --git a/dlfcn/modcxaatexit.c b/dlfcn/modcxaatexit.c new file mode 100644 index 0000000..1ff2d57 --- /dev/null +++ b/dlfcn/modcxaatexit.c @@ -0,0 +1,39 @@ +/* Copyright (C) 2001 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <stdio.h> +#include <stdlib.h> + +int global; + + +void +fluffy (void *p) +{ + printf ("This is %s\n", __FUNCTION__); + *(int *) p = global = 1; +} + + +void +bar (void *p) +{ + extern void *__dso_handle; + printf ("This is %s\n", __FUNCTION__); + __cxa_atexit (fluffy, p, __dso_handle); +} diff --git a/dlfcn/tstatexit.c b/dlfcn/tstatexit.c new file mode 100644 index 0000000..e3dfe4b --- /dev/null +++ b/dlfcn/tstatexit.c @@ -0,0 +1,63 @@ +/* Copyright (C) 2001 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <dlfcn.h> +#include <stdio.h> +#include <stdlib.h> + + +int +main (void) +{ + const char fname[] = "modatexit.so"; + void *h; + void (*fp) (void *); + int v = 0; + + h = dlopen (fname, RTLD_NOW); + if (h == NULL) + { + printf ("cannot open \"%s\": %s\n", fname, dlerror ()); + exit (1); + } + + fp = dlsym (h, "foo"); + if (fp == NULL) + { + printf ("cannot find \"foo\": %s\n", dlerror ()); + exit (1); + } + + fp (&v); + + if (dlclose (h) != 0) + { + printf ("cannot close \"%s\": %s\n", fname, dlerror ()); + exit (1); + } + + if (v != 1) + { + puts ("module unload didn't change `v'"); + exit (1); + } + + puts ("finishing now"); + + return 0; +} diff --git a/dlfcn/tstcxaatexit.c b/dlfcn/tstcxaatexit.c new file mode 100644 index 0000000..9ae86d0 --- /dev/null +++ b/dlfcn/tstcxaatexit.c @@ -0,0 +1,63 @@ +/* Copyright (C) 2001 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <dlfcn.h> +#include <stdio.h> +#include <stdlib.h> + + +int +main (void) +{ + const char fname[] = "modcxaatexit.so"; + void *h; + void (*fp) (void *); + int v = 0; + + h = dlopen (fname, RTLD_LAZY); + if (h == NULL) + { + printf ("cannot open \"%s\": %s\n", fname, dlerror ()); + exit (1); + } + + fp = dlsym (h, "bar"); + if (fp == NULL) + { + printf ("cannot find \"bar\": %s\n", dlerror ()); + exit (1); + } + + fp (&v); + + if (dlclose (h) != 0) + { + printf ("cannot close \"%s\": %s\n", fname, dlerror ()); + exit (1); + } + + if (v != 1) + { + puts ("module unload didn't change `v'"); + exit (1); + } + + puts ("finishing now"); + + return 0; +} |