diff options
Diffstat (limited to 'libexec/rtld-elf/powerpc64/rtld_machdep.h')
| -rw-r--r-- | libexec/rtld-elf/powerpc64/rtld_machdep.h | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/libexec/rtld-elf/powerpc64/rtld_machdep.h b/libexec/rtld-elf/powerpc64/rtld_machdep.h new file mode 100644 index 000000000000..d628e776bae9 --- /dev/null +++ b/libexec/rtld-elf/powerpc64/rtld_machdep.h @@ -0,0 +1,93 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause + * + * 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. + */ + +#ifndef RTLD_MACHDEP_H +#define RTLD_MACHDEP_H 1 + +#include <sys/types.h> +#include <machine/atomic.h> +#include <machine/tls.h> + +struct Struct_Obj_Entry; + +#define MD_OBJ_ENTRY \ + Elf_Addr glink; /* GLINK PLT call stub section */ + +/* Return the address of the .dynamic section in the dynamic linker. */ +#define rtld_dynamic(obj) (&_DYNAMIC) + +bool arch_digest_dynamic(struct Struct_Obj_Entry *, const Elf_Dyn *); + +/* No architecture specific notes */ +#define arch_digest_note(obj, note) false + +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 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_post_size(align) 0 + +typedef struct { + unsigned long ti_module; + unsigned long ti_offset; +} tls_index; + +extern void *__tls_get_addr(tls_index* ti); + +extern void powerpc64_abi_variant_hook(Elf_Auxinfo **); +#define md_abi_variant_hook(x) powerpc64_abi_variant_hook(x) + +#endif |
