<https://www.gnu.org/licenses/>. */
#include <stddef.h>
+#include <elf-initfini.h>
/* These magic symbols are provided by the linker. */
extern void (*__fini_array_end []) (void) attribute_hidden;
-#ifndef NO_INITFINI
+#if ELF_INITFINI
/* These function symbols are provided for the .init/.fini section entry
points automagically by the linker. */
extern void _init (void);
}
#endif
-#ifndef NO_INITFINI
+#if ELF_INITFINI
_init ();
#endif
while (i-- > 0)
(*__fini_array_start [i]) ();
-# ifndef NO_INITFINI
+# if ELF_INITFINI
_fini ();
# endif
#endif
#include <sys/gmon.h>
#include <stdlib.h>
#include <unistd.h>
+#include <elf-initfini.h>
#define __ASSEMBLY__
#include <entry.h>
# endif
#endif
+#if !ELF_INITFINI
+/* 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"
+#endif
+
#ifdef GMON_START_ARRAY_SECTION
static void __gmon_start__ (void);
static void (*const gmon_start_initializer) (void)
#include <assert.h>
#include <string.h>
#include <ldsodefs.h>
+#include <elf-initfini.h>
/* Type of the constructor functions. */
/* Is there a destructor function? */
if (l->l_info[DT_FINI_ARRAY] != NULL
- || l->l_info[DT_FINI] != NULL)
+ || (ELF_INITFINI && l->l_info[DT_FINI] != NULL))
{
/* When debugging print a message first. */
if (__builtin_expect (GLRO(dl_debug_mask)
}
/* Next try the old-style destructor. */
- if (l->l_info[DT_FINI] != NULL)
+ if (ELF_INITFINI && l->l_info[DT_FINI] != NULL)
DL_CALL_DT_FINI
(l, l->l_addr + l->l_info[DT_FINI]->d_un.d_ptr);
}
#include <stddef.h>
#include <ldsodefs.h>
+#include <elf-initfini.h>
/* Type of the initializer. */
&& l->l_type == lt_executable)
return;
- /* Are there any constructors? */
- if (l->l_info[DT_INIT] == NULL
- && __builtin_expect (l->l_info[DT_INIT_ARRAY] == NULL, 1))
- return;
-
/* Print a debug message if wanted. */
if (__glibc_unlikely (GLRO(dl_debug_mask) & DL_DEBUG_IMPCALLS))
_dl_debug_printf ("\ncalling init: %s\n\n",
- the one named by DT_INIT
- the others in the DT_INIT_ARRAY.
*/
- if (l->l_info[DT_INIT] != NULL)
+ if (ELF_INITFINI && l->l_info[DT_INIT] != NULL)
DL_CALL_DT_INIT(l, l->l_addr + l->l_info[DT_INIT]->d_un.d_ptr, argc, argv, env);
/* Next see whether there is an array with initialization functions. */
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
+#include <elf-initfini.h>
+
/* Arrange for __pthread_initialize_minimal_internal to be called at
libpthread startup, instead of conditionally calling
__gmon_start__. */
-#define PREINIT_FUNCTION __pthread_initialize_minimal_internal
-#define PREINIT_FUNCTION_WEAK 0
+#if ELF_INITFINI
+# define PREINIT_FUNCTION __pthread_initialize_minimal_internal
+# define PREINIT_FUNCTION_WEAK 0
-#include <crti.S>
+# include <crti.S>
+#else
+ .section .init_array,"a",%init_array
+ .dc.a __pthread_initialize_minimal_internal
+#endif
--- /dev/null
+/* Determine DT_INIT/DT_FINI support in the dynamic loader. AArch64 version.
+ Copyright (C) 2020 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.
+
+ 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/>. */
+
+/* Enable DT_INIT/DT_FINI support. */
+#define ELF_INITFINI 1
-/* Special initializer support for libpthread.
- Copyright (C) 2015-2020 Free Software Foundation, Inc.
+/* Determine DT_INIT/DT_FINI support in the dynamic loader. Alpha version.
+ Copyright (C) 2020 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
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
-/* This arranges for libpthread.so's special initializer to be called as
- soon as the library is loaded. */
-
- .section .init_array,"a",%init_array
- .dc.a __pthread_initialize_minimal_internal
+/* Enable DT_INIT/DT_FINI support. */
+#define ELF_INITFINI 1
--- /dev/null
+/* Determine DT_INIT/DT_FINI support in the dynamic loader. Arm version.
+ Copyright (C) 2020 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.
+
+ 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
+ <https://www.gnu.org/licenses/>. */
+
+/* Enable DT_INIT/DT_FINI support. */
+#define ELF_INITFINI 1
-init_array
wordsize-32
# C-SKY uses IEEE 754 floating point.
ieee754/flt-32
toolchains without .init_array support can use this to avoid the
superfluous .init and .fini boilerplate code. */
-#ifdef PREINIT_FUNCTION
+#include <elf-initfini.h>
-#if PREINIT_FUNCTION_WEAK
-# error PREINIT_FUNCTION_WEAK is unsupported
+#if ELF_INITFINI
+# error Cannot use default crti.S because it lacks _init code
#endif
+#ifdef PREINIT_FUNCTION
+
+# if PREINIT_FUNCTION_WEAK
+# error PREINIT_FUNCTION_WEAK is unsupported
+# endif
+
/* This arranges for PREINIT_FUNCTION to be called upon loading a library that
contains crti.o. */
But new configurations without compatibility concerns for
toolchains without .init_array support can use this to avoid the
superfluous .init and .fini boilerplate code. */
+
+#include <elf-initfini.h>
+
+#if ELF_INITFINI
+# error Cannot use genetric crtn.S because it lacks _fini code
+#endif
--- /dev/null
+/* Determine DT_INIT/DT_FINI support in the dynamic loader.
+ Copyright (C) 2020 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.
+
+ 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
+ <https://www.gnu.org/licenses/>. */
+
+/* Legacy platforms define this to 1. If 0, the dynamic linker
+ ignores the DT_INIT and DT_FINI tags, and static binaries will not
+ call the _init or _fini functions. If 1, the old constructor
+ mechanisms are used in addition to the initarray/finiarray
+ support. */
+#define ELF_INITFINI 0
--- /dev/null
+/* Determine DT_INIT/DT_FINI support in the dynamic loader. HPPA version.
+ Copyright (C) 2020 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.
+
+ 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
+ <https://www.gnu.org/licenses/>. */
+
+/* Enable DT_INIT/DT_FINI support. */
+#define ELF_INITFINI 1
--- /dev/null
+/* Determine DT_INIT/DT_FINI support in the dynamic loader. IA64 version.
+ Copyright (C) 2020 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.
+
+ 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
+ <https://www.gnu.org/licenses/>. */
+
+/* Enable DT_INIT/DT_FINI support. */
+#define ELF_INITFINI 1
+++ /dev/null
-/* Startup support for ELF initializers/finalizers in the main executable.
- Copyright (C) 2013-2020 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
- <https://www.gnu.org/licenses/>. */
-
-#define NO_INITFINI
-#include <csu/elf-init.c>
+++ /dev/null
-/* gmon startup hook using .preinit_array.
- Copyright (C) 2013-2020 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
- <https://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>
--- /dev/null
+/* Determine DT_INIT/DT_FINI support in the dynamic loader. m68k version.
+ Copyright (C) 2020 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.
+
+ 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
+ <https://www.gnu.org/licenses/>. */
+
+/* Enable DT_INIT/DT_FINI support. */
+#define ELF_INITFINI 1
--- /dev/null
+/* Determine DT_INIT/DT_FINI support in the dynamic loader, for Microblaze.
+ Copyright (C) 2020 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.
+
+ 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
+ <https://www.gnu.org/licenses/>. */
+
+/* Enable DT_INIT/DT_FINI support. */
+#define ELF_INITFINI 1
--- /dev/null
+/* Determine DT_INIT/DT_FINI support in the dynamic loader. MIPS version.
+ Copyright (C) 2020 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.
+
+ 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
+ <https://www.gnu.org/licenses/>. */
+
+/* Enable DT_INIT/DT_FINI support. */
+#define ELF_INITFINI 1
--- /dev/null
+/* Determine DT_INIT/DT_FINI support in the dynamic loader. nios2 version.
+ Copyright (C) 2020 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.
+
+ 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
+ <https://www.gnu.org/licenses/>. */
+
+/* Enable DT_INIT/DT_FINI support. */
+#define ELF_INITFINI 1
--- /dev/null
+/* Determine DT_INIT/DT_FINI support in the dynamic loader, for powerpc.
+ Copyright (C) 2020 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.
+
+ 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
+ <https://www.gnu.org/licenses/>. */
+
+/* Enable DT_INIT/DT_FINI support. */
+#define ELF_INITFINI 1
-init_array
-
ieee754/ldbl-128
ieee754/dbl-64
ieee754/flt-32
--- /dev/null
+/* Determine DT_INIT/DT_FINI support in the dynamic loader. S/390 version.
+ Copyright (C) 2020 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.
+
+ 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
+ <https://www.gnu.org/licenses/>. */
+
+/* Enable DT_INIT/DT_FINI support. */
+#define ELF_INITFINI 1
--- /dev/null
+/* Determine DT_INIT/DT_FINI support in the dynamic loader. SH version.
+ Copyright (C) 2020 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.
+
+ 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
+ <https://www.gnu.org/licenses/>. */
+
+/* Enable DT_INIT/DT_FINI support. */
+#define ELF_INITFINI 1
--- /dev/null
+/* Determine DT_INIT/DT_FINI support in the dynamic loader. SPARC version.
+ Copyright (C) 2020 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.
+
+ 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
+ <https://www.gnu.org/licenses/>. */
+
+/* Enable DT_INIT/DT_FINI support. */
+#define ELF_INITFINI 1
--- /dev/null
+/* Determine DT_INIT/DT_FINI support in the dynamic loader. x86 version.
+ Copyright (C) 2020 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.
+
+ 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
+ <https://www.gnu.org/licenses/>. */
+
+/* Enable DT_INIT/DT_FINI support. */
+#define ELF_INITFINI 1