diff options
Diffstat (limited to 'sysdeps/init_array')
| -rw-r--r-- | sysdeps/init_array/crti.S | 13 | ||||
| -rw-r--r-- | sysdeps/init_array/crtn.S | 13 | ||||
| -rw-r--r-- | sysdeps/init_array/elf-init.c | 37 | ||||
| -rw-r--r-- | sysdeps/init_array/gmon-start.c | 41 |
4 files changed, 104 insertions, 0 deletions
diff --git a/sysdeps/init_array/crti.S b/sysdeps/init_array/crti.S new file mode 100644 index 0000000000..0a6e9fd953 --- /dev/null +++ b/sysdeps/init_array/crti.S @@ -0,0 +1,13 @@ +/* Dummy crti file. + + In this configuration, crti.o and crtn.o are both empty because the + .init_array/.fini_array sections are used exclusively. + + Older ports cannot use this because even if the linker used to + build libc itself has .init_array support, we don't want to produce + a crt[in].o that presume a linker that new will be used to link + other things later. + + But new configurations without compatibility concerns for + toolchains without .init_array support can use this to avoid the + superfluous .init and .fini boilerplate code. */ diff --git a/sysdeps/init_array/crtn.S b/sysdeps/init_array/crtn.S new file mode 100644 index 0000000000..6f70e77160 --- /dev/null +++ b/sysdeps/init_array/crtn.S @@ -0,0 +1,13 @@ +/* Dummy crtn file. + + In this configuration, crti.o and crtn.o are both empty because the + .init_array/.fini_array sections are used exclusively. + + Older ports cannot use this because even if the linker used to + build libc itself has .init_array support, we don't want to produce + a crt[in].o that presume a linker that new will be used to link + other things later. + + But new configurations without compatibility concerns for + toolchains without .init_array support can use this to avoid the + superfluous .init and .fini boilerplate code. */ diff --git a/sysdeps/init_array/elf-init.c b/sysdeps/init_array/elf-init.c new file mode 100644 index 0000000000..c6467aac87 --- /dev/null +++ b/sysdeps/init_array/elf-init.c @@ -0,0 +1,37 @@ +/* Startup support for ELF initializers/finalizers in the main executable. + Copyright (C) 2013 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 Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file with other + programs, and to distribute those programs without any restriction + coming from the use of this file. (The GNU Lesser General Public + License restrictions do apply in other respects; for example, they + cover modification of the file, and distribution when not linked + into another program.) + + Note that people who make modified versions of this file are not + obligated to grant this special exception for their modified + versions; it is their choice whether to do so. The GNU Lesser + General Public License gives permission to release a modified + version without this exception; this exception also makes it + possible to release a modified version which carries forward this + exception. + + 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#define NO_INITFINI +#include <csu/elf-init.c> diff --git a/sysdeps/init_array/gmon-start.c b/sysdeps/init_array/gmon-start.c new file mode 100644 index 0000000000..6f2d6dc8b9 --- /dev/null +++ b/sysdeps/init_array/gmon-start.c @@ -0,0 +1,41 @@ +/* gmon startup hook using .preinit_array. + Copyright (C) 2013 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 Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file with other + programs, and to distribute those programs without any restriction + coming from the use of this file. (The GNU Lesser General Public + License restrictions do apply in other respects; for example, they + cover modification of the file, and distribution when not linked + into another program.) + + Note that people who make modified versions of this file are not + obligated to grant this special exception for their modified + versions; it is their choice whether to do so. The GNU Lesser + General Public License gives permission to release a modified + version without this exception; this exception also makes it + possible to release a modified version which carries forward this + exception. + + 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +/* Instead of defining __gmon_start__ globally in gcrt1.o, we make it + static and just put a pointer to it into the .preinit_array section. */ + +#define GMON_START_ARRAY_SECTION ".preinit_array" + +#include <csu/gmon-start.c> |