Mercurial > gnulib
view lib/c-stack.h @ 40206:770a5696761e
relocatable-prog: Use wrapper-free installation on Mac OS X, take 2.
This approach supports relocatable installation of shared libraries
which depend on other shared libraries from the same package.
* m4/relocatable.m4 (gl_RELOCATABLE_BODY): Determine use_macos_tools.
If use_macos_tools is true, use reloc-ldflags and set LIBTOOL to be a
wrapper around the original LIBTOOL.
* build-aux/reloc-ldflags: Add support for Mac OS X, which uses the
token '@loader_path' instead of '$ORIGIN'.
* build-aux/libtool-reloc: New file.
* modules/relocatable-prog (Files): Add it.
* doc/relocatable-maint.texi (Supporting Relocation): Update to match
the recent changes. Document the need to set the *_LDFLAGS of libraries.
RELOCATABLE_LIBRARY_PATH and RELOCATABLE_CONFIG_H_DIR should be set in
Makefile.am, not in configure.ac.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Mon, 04 Mar 2019 17:25:09 +0100 |
parents | b06060465f09 |
children |
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/* Stack overflow handling. Copyright (C) 2002, 2004, 2008-2019 Free Software Foundation, Inc. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>. */ /* Set up ACTION so that it is invoked on C stack overflow and on other, stack-unrelated, segmentation violation. Return -1 (setting errno) if this cannot be done. When a stack overflow or segmentation violation occurs: 1) ACTION is called. It is passed an argument equal to - 0, for a stack overflow, - SIGSEGV, for a segmentation violation that does not appear related to stack overflow. On many platforms the two cases are hard to distinguish; when in doubt, zero is passed. 2) If ACTION returns, a message is written to standard error, and the program is terminated: in the case of stack overflow, with exit code exit_failure (see "exitfail.h"), otherwise through a signal SIGSEGV. A null ACTION acts like an action that does nothing. ACTION must be async-signal-safe. ACTION together with its callees must not require more than SIGSTKSZ bytes of stack space. Also, ACTION should not call longjmp, because this implementation does not guarantee that it is safe to return to the original stack. This function may install a handler for the SIGSEGV signal or for the SIGBUS signal or exercise other system dependent exception handling APIs. */ extern int c_stack_action (void (* /*action*/) (int));