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Makefile.inc
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reloc.c
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rtld_machdep.h
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rtld_start.S
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Editing: rtld_machdep.h
/*- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD * * Copyright (c) 1999, 2000 John D. Polstra. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD$ */ #ifndef RTLD_MACHDEP_H #define RTLD_MACHDEP_H 1 #include <sys/types.h> #include <machine/atomic.h> struct Struct_Obj_Entry; /* Return the address of the .dynamic section in the dynamic linker. */ #define rtld_dynamic(obj) (&_DYNAMIC) Elf_Addr reloc_jmpslot(Elf_Addr *where, Elf_Addr target, const struct Struct_Obj_Entry *defobj, const struct Struct_Obj_Entry *obj, const Elf_Rel *rel); void reloc_non_plt_self(Elf_Dyn *dynp, Elf_Addr relocbase); #define make_function_pointer(def, defobj) \ ((defobj)->relocbase + (def)->st_value) #define call_initfini_pointer(obj, target) \ (((InitFunc)(target))()) #define call_init_pointer(obj, target) \ (((InitArrFunc)(target))(main_argc, main_argv, environ)) extern u_long cpu_features; /* r3 */ extern u_long cpu_features2; /* r4 */ /* r5-r10: ifunc resolver parameters reserved for future assignment. */ #define call_ifunc_resolver(ptr) \ (((Elf_Addr (*)(uint32_t, uint32_t, uint64_t, uint64_t, uint64_t, \ uint64_t, uint64_t, uint64_t))ptr)((uint32_t)cpu_features, \ (uint32_t)cpu_features2, 0, 0, 0, 0, 0, 0)) /* * TLS */ #define TLS_TP_OFFSET 0x7000 #define TLS_DTV_OFFSET 0x8000 #define TLS_TCB_SIZE 16 #define round(size, align) \ (((size) + (align) - 1) & ~((align) - 1)) #define calculate_first_tls_offset(size, align, offset) \ TLS_TCB_SIZE #define calculate_tls_offset(prev_offset, prev_size, size, align, offset) \ round(prev_offset + prev_size, align) #define calculate_tls_end(off, size) ((off) + (size)) #define calculate_tls_post_size(align) 0 typedef struct { unsigned long ti_module; unsigned long ti_offset; } tls_index; extern void *__tls_get_addr(tls_index* ti); #define RTLD_DEFAULT_STACK_PF_EXEC PF_X #define RTLD_DEFAULT_STACK_EXEC PROT_EXEC extern void powerpc64_abi_variant_hook(Elf_Auxinfo **); #define md_abi_variant_hook(x) powerpc64_abi_variant_hook(x) #endif
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