From d6d89608ac8cf2b37c75debad1fff653f6939f90 Mon Sep 17 00:00:00 2001 From: Adhemerval Zanella Date: Wed, 13 Oct 2021 09:49:34 -0300 Subject: elf: Fix dynamic-link.h usage on rtld.c The 4af6982e4c fix does not fully handle RTLD_BOOTSTRAP usage on rtld.c due two issues: 1. RTLD_BOOTSTRAP is also used on dl-machine.h on various architectures and it changes the semantics of various machine relocation functions. 2. The elf_get_dynamic_info() change was done sideways, previously to 490e6c62aa get-dynamic-info.h was included by the first dynamic-link.h include *without* RTLD_BOOTSTRAP being defined. It means that the code within elf_get_dynamic_info() that uses RTLD_BOOTSTRAP is in fact unused. To fix 1. this patch now includes dynamic-link.h only once with RTLD_BOOTSTRAP defined. The ELF_DYNAMIC_RELOCATE call will now have the relocation fnctions with the expected semantics for the loader. And to fix 2. part of 4af6982e4c is reverted (the check argument elf_get_dynamic_info() is not required) and the RTLD_BOOTSTRAP pieces are removed. To reorganize the includes the static TLS definition is moved to its own header to avoid a circular dependency (it is defined on dynamic-link.h and dl-machine.h requires it at same time other dynamic-link.h definition requires dl-machine.h defitions). Also ELF_MACHINE_NO_REL, ELF_MACHINE_NO_RELA, and ELF_MACHINE_PLT_REL are moved to its own header. Only ancient ABIs need special values (arm, i386, and mips), so a generic one is used as default. The powerpc Elf64_FuncDesc is also moved to its own header, since csu code required its definition (which would require either include elf/ folder or add a full path with elf/). Checked on x86_64, i686, aarch64, armhf, powerpc64, powerpc32, and powerpc64le. Reviewed-by: Szabolcs Nagy --- sysdeps/aarch64/dl-machine.h | 8 +++---- sysdeps/alpha/dl-machine.h | 6 ++--- sysdeps/arc/dl-machine.h | 10 ++++----- sysdeps/arm/dl-machine-rel.h | 31 ++++++++++++++++++++++++++ sysdeps/arm/dl-machine.h | 11 ++-------- sysdeps/csky/dl-machine.h | 6 ++--- sysdeps/generic/dl-machine-rel.h | 27 +++++++++++++++++++++++ sysdeps/generic/dl-machine.h | 2 ++ sysdeps/hppa/dl-machine.h | 6 ++--- sysdeps/i386/dl-machine-rel.h | 31 ++++++++++++++++++++++++++ sysdeps/i386/dl-machine.h | 11 ++-------- sysdeps/ia64/dl-machine.h | 6 ++--- sysdeps/m68k/dl-machine.h | 6 ++--- sysdeps/microblaze/dl-machine.h | 6 ++--- sysdeps/mips/dl-machine-rel.h | 26 ++++++++++++++++++++++ sysdeps/mips/dl-machine.h | 6 ++--- sysdeps/nios2/dl-machine.h | 6 ++--- sysdeps/powerpc/powerpc32/dl-machine.h | 6 ++--- sysdeps/powerpc/powerpc64/dl-funcdesc.h | 34 +++++++++++++++++++++++++++++ sysdeps/powerpc/powerpc64/dl-irel.h | 2 +- sysdeps/powerpc/powerpc64/dl-machine.h | 19 +++------------- sysdeps/riscv/dl-machine.h | 5 ++--- sysdeps/s390/s390-32/dl-machine.h | 6 ++--- sysdeps/s390/s390-64/dl-machine.h | 6 ++--- sysdeps/sh/dl-machine.h | 6 ++--- sysdeps/sparc/sparc32/dl-machine.h | 6 ++--- sysdeps/sparc/sparc64/dl-machine.h | 6 ++--- sysdeps/unix/sysv/linux/powerpc/libc-vdso.h | 2 +- sysdeps/x86_64/dl-machine.h | 6 ++--- 29 files changed, 199 insertions(+), 110 deletions(-) create mode 100644 sysdeps/arm/dl-machine-rel.h create mode 100644 sysdeps/generic/dl-machine-rel.h create mode 100644 sysdeps/i386/dl-machine-rel.h create mode 100644 sysdeps/mips/dl-machine-rel.h create mode 100644 sysdeps/powerpc/powerpc64/dl-funcdesc.h (limited to 'sysdeps') diff --git a/sysdeps/aarch64/dl-machine.h b/sysdeps/aarch64/dl-machine.h index e30e81c..0d5ad21 100644 --- a/sysdeps/aarch64/dl-machine.h +++ b/sysdeps/aarch64/dl-machine.h @@ -24,7 +24,9 @@ #include #include #include +#include #include +#include #include /* Translate a processor specific dynamic tag to the index in l_info array. */ @@ -190,10 +192,6 @@ _dl_start_user: \n\ #define ELF_MACHINE_JMP_SLOT AARCH64_R(JUMP_SLOT) -/* AArch64 uses RELA not REL */ -#define ELF_MACHINE_NO_REL 1 -#define ELF_MACHINE_NO_RELA 0 - #define DL_PLATFORM_INIT dl_platform_init () static inline void __attribute__ ((unused)) @@ -370,7 +368,7 @@ elf_machine_rela (struct link_map *map, struct r_scope_elem *scope[], } } -inline void +static inline void __attribute__ ((always_inline)) elf_machine_rela_relative (ElfW(Addr) l_addr, const ElfW(Rela) *reloc, diff --git a/sysdeps/alpha/dl-machine.h b/sysdeps/alpha/dl-machine.h index 4915413..7d6282e 100644 --- a/sysdeps/alpha/dl-machine.h +++ b/sysdeps/alpha/dl-machine.h @@ -25,6 +25,8 @@ #define ELF_MACHINE_NAME "alpha" #include +#include +#include /* Mask identifying addresses reserved for the user program, @@ -240,10 +242,6 @@ $fixup_stack: \n\ /* A reloc type used for ld.so cmdline arg lookups to reject PLT entries. */ #define ELF_MACHINE_JMP_SLOT R_ALPHA_JMP_SLOT -/* The alpha never uses Elf64_Rel relocations. */ -#define ELF_MACHINE_NO_REL 1 -#define ELF_MACHINE_NO_RELA 0 - /* We define an initialization functions. This is called very early in * _dl_sysdep_start. */ #define DL_PLATFORM_INIT dl_platform_init () diff --git a/sysdeps/arc/dl-machine.h b/sysdeps/arc/dl-machine.h index 4b64ffe..f843ed9 100644 --- a/sysdeps/arc/dl-machine.h +++ b/sysdeps/arc/dl-machine.h @@ -30,6 +30,8 @@ #include #include #include +#include +#include /* Dynamic Linking ABI for ARCv2 ISA. @@ -203,10 +205,6 @@ __start: \n\ /* A reloc type used for ld.so cmdline arg lookups to reject PLT entries. */ #define ELF_MACHINE_JMP_SLOT R_ARC_JUMP_SLOT -/* ARC uses Rela relocations. */ -#define ELF_MACHINE_NO_REL 1 -#define ELF_MACHINE_NO_RELA 0 - /* Fixup a PLT entry to bounce directly to the function at VALUE. */ static inline ElfW(Addr) @@ -318,7 +316,7 @@ elf_machine_rela (struct link_map *map, struct r_scope_elem *scope[], } } -inline void +static inline void __attribute__ ((always_inline)) elf_machine_rela_relative (ElfW(Addr) l_addr, const ElfW(Rela) *reloc, void *const reloc_addr_arg) @@ -327,7 +325,7 @@ elf_machine_rela_relative (ElfW(Addr) l_addr, const ElfW(Rela) *reloc, *reloc_addr += l_addr; } -inline void +static inline void __attribute__ ((always_inline)) elf_machine_lazy_rel (struct link_map *map, struct r_scope_elem *scope[], ElfW(Addr) l_addr, const ElfW(Rela) *reloc, diff --git a/sysdeps/arm/dl-machine-rel.h b/sysdeps/arm/dl-machine-rel.h new file mode 100644 index 0000000..bec1147 --- /dev/null +++ b/sysdeps/arm/dl-machine-rel.h @@ -0,0 +1,31 @@ +/* ELF dynamic relocation type supported by the architecture. ARM version. + Copyright (C) 2001-2021 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 + . */ + +#ifndef _DL_MACHINE_REL_H +#define _DL_MACHINE_REL_H + +/* ARM never uses Elf32_Rela relocations for the dynamic linker. + Prelinked libraries may use Elf32_Rela though. */ +#define ELF_MACHINE_NO_RELA defined RTLD_BOOTSTRAP +#define ELF_MACHINE_NO_REL 0 + +/* ARM never uses Elf32_Rela relocations for the dynamic linker. + Prelinked libraries may use Elf32_Rela though. */ +#define ELF_MACHINE_PLT_REL 1 + +#endif diff --git a/sysdeps/arm/dl-machine.h b/sysdeps/arm/dl-machine.h index dfa05ee..c758bba 100644 --- a/sysdeps/arm/dl-machine.h +++ b/sysdeps/arm/dl-machine.h @@ -26,6 +26,8 @@ #include #include #include +#include +#include #ifndef CLEAR_CACHE # error CLEAR_CACHE definition required to handle TEXTREL @@ -231,10 +233,6 @@ _dl_start_user:\n\ /* A reloc type used for ld.so cmdline arg lookups to reject PLT entries. */ #define ELF_MACHINE_JMP_SLOT R_ARM_JUMP_SLOT -/* ARM never uses Elf32_Rela relocations for the dynamic linker. - Prelinked libraries may use Elf32_Rela though. */ -#define ELF_MACHINE_PLT_REL 1 - /* We define an initialization functions. This is called very early in _dl_sysdep_start. */ #define DL_PLATFORM_INIT dl_platform_init () @@ -267,11 +265,6 @@ elf_machine_plt_value (struct link_map *map, const Elf32_Rel *reloc, #endif /* !dl_machine_h */ -/* ARM never uses Elf32_Rela relocations for the dynamic linker. - Prelinked libraries may use Elf32_Rela though. */ -#define ELF_MACHINE_NO_RELA defined RTLD_BOOTSTRAP -#define ELF_MACHINE_NO_REL 0 - /* Names of the architecture-specific auditing callback functions. */ #define ARCH_LA_PLTENTER arm_gnu_pltenter #define ARCH_LA_PLTEXIT arm_gnu_pltexit diff --git a/sysdeps/csky/dl-machine.h b/sysdeps/csky/dl-machine.h index ec22f87..4dfd957 100644 --- a/sysdeps/csky/dl-machine.h +++ b/sysdeps/csky/dl-machine.h @@ -24,6 +24,8 @@ #include #include #include +#include +#include /* Return nonzero if ELF header is compatible with the running host. */ static inline int @@ -172,10 +174,6 @@ _dl_start_user:\n\ /* A reloc type used for ld.so cmdline arg lookups to reject PLT entries. */ #define ELF_MACHINE_JMP_SLOT R_CKCORE_JUMP_SLOT -/* C-SKY never uses Elf32_Rel relocations. */ -#define ELF_MACHINE_NO_REL 1 -#define ELF_MACHINE_NO_RELA 0 - /* We define an initialization functions. This is called very early in _dl_sysdep_start. */ #define DL_PLATFORM_INIT dl_platform_init () diff --git a/sysdeps/generic/dl-machine-rel.h b/sysdeps/generic/dl-machine-rel.h new file mode 100644 index 0000000..9167a1d --- /dev/null +++ b/sysdeps/generic/dl-machine-rel.h @@ -0,0 +1,27 @@ +/* ELF dynamic relocation type supported by the architecture. + Copyright (C) 2001-2021 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 + . */ + +#ifndef _DL_MACHINE_REL_H +#define _DL_MACHINE_REL_H + +/* Defined if the architecture supports Elf{32,64}_Rel relocations. */ +#define ELF_MACHINE_NO_REL 1 +/* Defined if the architecture supports Elf{32,64}_Rela relocations. */ +#define ELF_MACHINE_NO_RELA 0 + +#endif diff --git a/sysdeps/generic/dl-machine.h b/sysdeps/generic/dl-machine.h index 4a4ab4f..7da695d 100644 --- a/sysdeps/generic/dl-machine.h +++ b/sysdeps/generic/dl-machine.h @@ -20,6 +20,8 @@ #include #include +#include +#include /* Return nonzero iff ELF header is compatible with the running host. */ diff --git a/sysdeps/hppa/dl-machine.h b/sysdeps/hppa/dl-machine.h index e6a4575..7c5d0e9 100644 --- a/sysdeps/hppa/dl-machine.h +++ b/sysdeps/hppa/dl-machine.h @@ -29,6 +29,8 @@ #include #include #include +#include +#include /* These two definitions must match the definition of the stub in bfd/elf32-hppa.c (see plt_stub[]). @@ -509,10 +511,6 @@ asm ( \ #define ELF_MACHINE_JMP_SLOT R_PARISC_IPLT #define ELF_MACHINE_SIZEOF_JMP_SLOT PLT_ENTRY_SIZE -/* We only use RELA. */ -#define ELF_MACHINE_NO_REL 1 -#define ELF_MACHINE_NO_RELA 0 - /* Return the address of the entry point. */ #define ELF_MACHINE_START_ADDRESS(map, start) \ ({ \ diff --git a/sysdeps/i386/dl-machine-rel.h b/sysdeps/i386/dl-machine-rel.h new file mode 100644 index 0000000..7ac46f7 --- /dev/null +++ b/sysdeps/i386/dl-machine-rel.h @@ -0,0 +1,31 @@ +/* ELF dynamic relocation type supported by the architecture. ARM version. + Copyright (C) 2001-2021 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 + . */ + +#ifndef _DL_MACHINE_REL_H +#define _DL_MACHINE_REL_H + +/* The i386 never uses Elf32_Rela relocations for the dynamic linker. + Prelinked libraries may use Elf32_Rela though. */ +#define ELF_MACHINE_NO_RELA defined RTLD_BOOTSTRAP +#define ELF_MACHINE_NO_REL 0 + +/* The i386 never uses Elf32_Rela relocations for the dynamic linker. + Prelinked libraries may use Elf32_Rela though. */ +#define ELF_MACHINE_PLT_REL 1 + +#endif diff --git a/sysdeps/i386/dl-machine.h b/sysdeps/i386/dl-machine.h index 78bed03..169bed5 100644 --- a/sysdeps/i386/dl-machine.h +++ b/sysdeps/i386/dl-machine.h @@ -26,6 +26,8 @@ #include #include #include +#include +#include /* Return nonzero iff ELF header is compatible with the running host. */ static inline int __attribute__ ((unused)) @@ -230,10 +232,6 @@ _dl_start_user:\n\ /* A reloc type used for ld.so cmdline arg lookups to reject PLT entries. */ #define ELF_MACHINE_JMP_SLOT R_386_JMP_SLOT -/* The i386 never uses Elf32_Rela relocations for the dynamic linker. - Prelinked libraries may use Elf32_Rela though. */ -#define ELF_MACHINE_PLT_REL 1 - /* We define an initialization functions. This is called very early in _dl_sysdep_start. */ #define DL_PLATFORM_INIT dl_platform_init () @@ -276,11 +274,6 @@ elf_machine_plt_value (struct link_map *map, const Elf32_Rel *reloc, #endif /* !dl_machine_h */ -/* The i386 never uses Elf32_Rela relocations for the dynamic linker. - Prelinked libraries may use Elf32_Rela though. */ -#define ELF_MACHINE_NO_RELA defined RTLD_BOOTSTRAP -#define ELF_MACHINE_NO_REL 0 - #ifdef RESOLVE_MAP /* Perform the relocation specified by RELOC and SYM (which is fully resolved). diff --git a/sysdeps/ia64/dl-machine.h b/sysdeps/ia64/dl-machine.h index 2217d0b..c9608a5 100644 --- a/sysdeps/ia64/dl-machine.h +++ b/sysdeps/ia64/dl-machine.h @@ -27,6 +27,8 @@ #include #include #include +#include +#include /* Translate a processor specific dynamic tag to the index in l_info array. */ @@ -319,10 +321,6 @@ elf_machine_runtime_setup (struct link_map *l, struct r_scope_elem *scope[], /* A reloc type used for ld.so cmdline arg lookups to reject PLT entries. */ #define ELF_MACHINE_JMP_SLOT R_IA64_IPLTLSB -/* According to the IA-64 specific documentation, Rela is always used. */ -#define ELF_MACHINE_NO_REL 1 -#define ELF_MACHINE_NO_RELA 0 - /* Return the address of the entry point. */ #define ELF_MACHINE_START_ADDRESS(map, start) \ ({ \ diff --git a/sysdeps/m68k/dl-machine.h b/sysdeps/m68k/dl-machine.h index 5e34c47..30323d6 100644 --- a/sysdeps/m68k/dl-machine.h +++ b/sysdeps/m68k/dl-machine.h @@ -24,6 +24,8 @@ #include #include #include +#include +#include /* Return nonzero iff ELF header is compatible with the running host. */ static inline int @@ -183,10 +185,6 @@ _dl_start_user:\n\ /* A reloc type used for ld.so cmdline arg lookups to reject PLT entries. */ #define ELF_MACHINE_JMP_SLOT R_68K_JMP_SLOT -/* The m68k never uses Elf32_Rel relocations. */ -#define ELF_MACHINE_NO_REL 1 -#define ELF_MACHINE_NO_RELA 0 - static inline Elf32_Addr elf_machine_fixup_plt (struct link_map *map, lookup_t t, const ElfW(Sym) *refsym, const ElfW(Sym) *sym, diff --git a/sysdeps/microblaze/dl-machine.h b/sysdeps/microblaze/dl-machine.h index 3fd4988..b8cc5a7 100644 --- a/sysdeps/microblaze/dl-machine.h +++ b/sysdeps/microblaze/dl-machine.h @@ -23,6 +23,8 @@ #include #include +#include +#include /* Return nonzero iff ELF header is compatible with the running host. */ static inline int @@ -169,10 +171,6 @@ _dl_start_user:\n\ /* A reloc type used for ld.so cmdline arg lookups to reject PLT entries. */ #define ELF_MACHINE_JMP_SLOT R_MICROBLAZE_JUMP_SLOT -/* The microblaze never uses Elf32_Rel relocations. */ -#define ELF_MACHINE_NO_REL 1 -#define ELF_MACHINE_NO_RELA 0 - static inline Elf32_Addr elf_machine_fixup_plt (struct link_map *map, lookup_t t, const ElfW(Sym) *refsym, const ElfW(Sym) *sym, diff --git a/sysdeps/mips/dl-machine-rel.h b/sysdeps/mips/dl-machine-rel.h new file mode 100644 index 0000000..ed39618 --- /dev/null +++ b/sysdeps/mips/dl-machine-rel.h @@ -0,0 +1,26 @@ +/* ELF dynamic relocation type supported by the architecture. ARM version. + Copyright (C) 2001-2021 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 + . */ + +#ifndef _DL_MACHINE_REL_H +#define _DL_MACHINE_REL_H + +#define ELF_MACHINE_PLT_REL 1 +#define ELF_MACHINE_NO_REL 0 +#define ELF_MACHINE_NO_RELA 0 + +#endif diff --git a/sysdeps/mips/dl-machine.h b/sysdeps/mips/dl-machine.h index f8d1298..d7b8341 100644 --- a/sysdeps/mips/dl-machine.h +++ b/sysdeps/mips/dl-machine.h @@ -32,6 +32,8 @@ #include #include #include +#include +#include /* The offset of gp from GOT might be system-dependent. It's set by ld. The same value is also */ @@ -59,10 +61,6 @@ ((((type) == ELF_MACHINE_JMP_SLOT) * ELF_RTYPE_CLASS_PLT) \ | (((type) == R_MIPS_COPY) * ELF_RTYPE_CLASS_COPY)) -#define ELF_MACHINE_PLT_REL 1 -#define ELF_MACHINE_NO_REL 0 -#define ELF_MACHINE_NO_RELA 0 - /* Translate a processor specific dynamic tag to the index in l_info array. */ #define DT_MIPS(x) (DT_MIPS_##x - DT_LOPROC + DT_NUM) diff --git a/sysdeps/nios2/dl-machine.h b/sysdeps/nios2/dl-machine.h index 4de602b..430ca5d 100644 --- a/sysdeps/nios2/dl-machine.h +++ b/sysdeps/nios2/dl-machine.h @@ -24,6 +24,8 @@ #include #include #include +#include +#include /* Return nonzero iff ELF header is compatible with the running host. */ static inline int @@ -200,10 +202,6 @@ _start:\n\ /* A reloc type used for ld.so cmdline arg lookups to reject PLT entries. */ #define ELF_MACHINE_JMP_SLOT R_NIOS2_JUMP_SLOT -/* The Nios II never uses Elf32_Rel relocations. */ -#define ELF_MACHINE_NO_REL 1 -#define ELF_MACHINE_NO_RELA 0 - /* Fixup a PLT entry to bounce directly to the function at VALUE. */ static inline Elf32_Addr diff --git a/sysdeps/powerpc/powerpc32/dl-machine.h b/sysdeps/powerpc/powerpc32/dl-machine.h index cda012d..8d06295 100644 --- a/sysdeps/powerpc/powerpc32/dl-machine.h +++ b/sysdeps/powerpc/powerpc32/dl-machine.h @@ -25,6 +25,8 @@ #include #include #include +#include +#include /* Translate a processor specific dynamic tag to the index in l_info array. */ @@ -145,10 +147,6 @@ __elf_preferred_address(struct link_map *loader, size_t maplength, /* A reloc type used for ld.so cmdline arg lookups to reject PLT entries. */ #define ELF_MACHINE_JMP_SLOT R_PPC_JMP_SLOT -/* The PowerPC never uses REL relocations. */ -#define ELF_MACHINE_NO_REL 1 -#define ELF_MACHINE_NO_RELA 0 - /* We define an initialization function to initialize HWCAP/HWCAP2 and platform data so it can be copied into the TCB later. This is called very early in _dl_sysdep_start for dynamically linked binaries. */ diff --git a/sysdeps/powerpc/powerpc64/dl-funcdesc.h b/sysdeps/powerpc/powerpc64/dl-funcdesc.h new file mode 100644 index 0000000..b2d1f76 --- /dev/null +++ b/sysdeps/powerpc/powerpc64/dl-funcdesc.h @@ -0,0 +1,34 @@ +/* PowerPC ELFv1 function descriptor definition. + Copyright (C) 2009-2021 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 + . */ + +#ifndef _DL_FUNCDESC_H +#define _DL_FUNCDESC_H + +#if _CALL_ELF != 2 +/* A PowerPC64 function descriptor. The .plt (procedure linkage + table) and .opd (official procedure descriptor) sections are + arrays of these. */ +typedef struct +{ + Elf64_Addr fd_func; + Elf64_Addr fd_toc; + Elf64_Addr fd_aux; +} Elf64_FuncDesc; +#endif + +#endif diff --git a/sysdeps/powerpc/powerpc64/dl-irel.h b/sysdeps/powerpc/powerpc64/dl-irel.h index 0e11b7f..aa9a2dc 100644 --- a/sysdeps/powerpc/powerpc64/dl-irel.h +++ b/sysdeps/powerpc/powerpc64/dl-irel.h @@ -23,7 +23,7 @@ #include #include #include -#include +#include #define ELF_MACHINE_IRELA 1 diff --git a/sysdeps/powerpc/powerpc64/dl-machine.h b/sysdeps/powerpc/powerpc64/dl-machine.h index 3f92fbb..3a4a21a 100644 --- a/sysdeps/powerpc/powerpc64/dl-machine.h +++ b/sysdeps/powerpc/powerpc64/dl-machine.h @@ -28,23 +28,14 @@ #include #include #include +#include +#include +#include /* Translate a processor specific dynamic tag to the index in l_info array. */ #define DT_PPC64(x) (DT_PPC64_##x - DT_LOPROC + DT_NUM) -#if _CALL_ELF != 2 -/* A PowerPC64 function descriptor. The .plt (procedure linkage - table) and .opd (official procedure descriptor) sections are - arrays of these. */ -typedef struct -{ - Elf64_Addr fd_func; - Elf64_Addr fd_toc; - Elf64_Addr fd_aux; -} Elf64_FuncDesc; -#endif - #define ELF_MULT_MACHINES_SUPPORTED /* Return nonzero iff ELF header is compatible with the running host. */ @@ -292,10 +283,6 @@ BODY_PREFIX "_dl_start_user:\n" \ /* A reloc type used for ld.so cmdline arg lookups to reject PLT entries. */ #define ELF_MACHINE_JMP_SLOT R_PPC64_JMP_SLOT -/* The PowerPC never uses REL relocations. */ -#define ELF_MACHINE_NO_REL 1 -#define ELF_MACHINE_NO_RELA 0 - /* We define an initialization function to initialize HWCAP/HWCAP2 and platform data so it can be copied into the TCB later. This is called very early in _dl_sysdep_start for dynamically linked binaries. */ diff --git a/sysdeps/riscv/dl-machine.h b/sysdeps/riscv/dl-machine.h index e7289d7..ce2b3c3 100644 --- a/sysdeps/riscv/dl-machine.h +++ b/sysdeps/riscv/dl-machine.h @@ -26,6 +26,8 @@ #include #include #include +#include +#include #ifndef _RTLD_PROLOGUE # define _RTLD_PROLOGUE(entry) \ @@ -51,9 +53,6 @@ || (__WORDSIZE == 64 && (type) == R_RISCV_TLS_TPREL64))) \ | (ELF_RTYPE_CLASS_COPY * ((type) == R_RISCV_COPY))) -#define ELF_MACHINE_NO_REL 1 -#define ELF_MACHINE_NO_RELA 0 - /* Return nonzero iff ELF header is compatible with the running host. */ static inline int __attribute_used__ elf_machine_matches_host (const ElfW(Ehdr) *ehdr) diff --git a/sysdeps/s390/s390-32/dl-machine.h b/sysdeps/s390/s390-32/dl-machine.h index cd16cc7..c1d9bb4 100644 --- a/sysdeps/s390/s390-32/dl-machine.h +++ b/sysdeps/s390/s390-32/dl-machine.h @@ -26,6 +26,8 @@ #include #include #include +#include +#include /* This is an older, now obsolete value. */ #define EM_S390_OLD 0xA390 @@ -276,10 +278,6 @@ _dl_start_user:\n\ /* A reloc type used for ld.so cmdline arg lookups to reject PLT entries. */ #define ELF_MACHINE_JMP_SLOT R_390_JMP_SLOT -/* The S390 never uses Elf32_Rel relocations. */ -#define ELF_MACHINE_NO_REL 1 -#define ELF_MACHINE_NO_RELA 0 - /* We define an initialization functions. This is called very early in _dl_sysdep_start. */ #define DL_PLATFORM_INIT dl_platform_init () diff --git a/sysdeps/s390/s390-64/dl-machine.h b/sysdeps/s390/s390-64/dl-machine.h index 0330a8d..d405f01 100644 --- a/sysdeps/s390/s390-64/dl-machine.h +++ b/sysdeps/s390/s390-64/dl-machine.h @@ -27,6 +27,8 @@ #include #include #include +#include +#include #define ELF_MACHINE_IRELATIVE R_390_IRELATIVE @@ -224,10 +226,6 @@ _dl_start_user:\n\ /* A reloc type used for ld.so cmdline arg lookups to reject PLT entries. */ #define ELF_MACHINE_JMP_SLOT R_390_JMP_SLOT -/* The 64 bit S/390 never uses Elf64_Rel relocations. */ -#define ELF_MACHINE_NO_REL 1 -#define ELF_MACHINE_NO_RELA 0 - /* We define an initialization functions. This is called very early in _dl_sysdep_start. */ #define DL_PLATFORM_INIT dl_platform_init () diff --git a/sysdeps/sh/dl-machine.h b/sysdeps/sh/dl-machine.h index 0c22dfd..d14023e 100644 --- a/sysdeps/sh/dl-machine.h +++ b/sysdeps/sh/dl-machine.h @@ -24,6 +24,8 @@ #include #include #include +#include +#include /* Return nonzero iff ELF header is compatible with the running host. */ static inline int __attribute__ ((unused)) @@ -251,10 +253,6 @@ elf_machine_plt_value (struct link_map *map, const Elf32_Rela *reloc, #endif /* !dl_machine_h */ -/* SH never uses Elf32_Rel relocations. */ -#define ELF_MACHINE_NO_REL 1 -#define ELF_MACHINE_NO_RELA 0 - #ifdef RESOLVE_MAP /* Perform the relocation specified by RELOC and SYM (which is fully resolved). diff --git a/sysdeps/sparc/sparc32/dl-machine.h b/sysdeps/sparc/sparc32/dl-machine.h index 6361cfa..78f53bc 100644 --- a/sysdeps/sparc/sparc32/dl-machine.h +++ b/sysdeps/sparc/sparc32/dl-machine.h @@ -28,6 +28,8 @@ #include #include #include +#include +#include /* Return nonzero iff ELF header is compatible with the running host. */ static inline int @@ -196,10 +198,6 @@ elf_machine_runtime_setup (struct link_map *l, struct r_scope_elem *scope[], /* A reloc type used for ld.so cmdline arg lookups to reject PLT entries. */ #define ELF_MACHINE_JMP_SLOT R_SPARC_JMP_SLOT -/* The SPARC never uses Elf32_Rel relocations. */ -#define ELF_MACHINE_NO_REL 1 -#define ELF_MACHINE_NO_RELA 0 - /* Undo the sub %sp, 6*4, %sp; add %sp, 22*4, %o0 below to get at the value we want in __libc_stack_end. */ #define DL_STACK_END(cookie) \ diff --git a/sysdeps/sparc/sparc64/dl-machine.h b/sysdeps/sparc/sparc64/dl-machine.h index 3fd18c6..3fa79d0 100644 --- a/sysdeps/sparc/sparc64/dl-machine.h +++ b/sysdeps/sparc/sparc64/dl-machine.h @@ -26,6 +26,8 @@ #include #include #include +#include +#include #define ELF64_R_TYPE_ID(info) ((info) & 0xff) #define ELF64_R_TYPE_DATA(info) ((info) >> 8) @@ -118,10 +120,6 @@ elf_machine_plt_value (struct link_map *map, const Elf64_Rela *reloc, /* A reloc type used for ld.so cmdline arg lookups to reject PLT entries. */ #define ELF_MACHINE_JMP_SLOT R_SPARC_JMP_SLOT -/* The SPARC never uses Elf64_Rel relocations. */ -#define ELF_MACHINE_NO_REL 1 -#define ELF_MACHINE_NO_RELA 0 - /* Set up the loaded object described by L so its unrelocated PLT entries will jump to the on-demand fixup code in dl-runtime.c. */ diff --git a/sysdeps/unix/sysv/linux/powerpc/libc-vdso.h b/sysdeps/unix/sysv/linux/powerpc/libc-vdso.h index db388a0..72b75d3 100644 --- a/sysdeps/unix/sysv/linux/powerpc/libc-vdso.h +++ b/sysdeps/unix/sysv/linux/powerpc/libc-vdso.h @@ -24,7 +24,7 @@ #include #if (defined(__PPC64__) || defined(__powerpc64__)) && _CALL_ELF != 2 -# include +# include /* The correct solution is for _dl_vdso_vsym to return the address of the OPD for the kernel VDSO function. That address would then be stored in the __vdso_* variables and returned as the result of the IFUNC resolver function. diff --git a/sysdeps/x86_64/dl-machine.h b/sysdeps/x86_64/dl-machine.h index 20afb0b..b1a5297 100644 --- a/sysdeps/x86_64/dl-machine.h +++ b/sysdeps/x86_64/dl-machine.h @@ -26,6 +26,8 @@ #include #include #include +#include +#include /* Return nonzero iff ELF header is compatible with the running host. */ static inline int __attribute__ ((unused)) @@ -200,10 +202,6 @@ _dl_start_user:\n\ // XXX This is a work-around for a broken linker. Remove! #define ELF_MACHINE_IRELATIVE R_X86_64_IRELATIVE -/* The x86-64 never uses Elf64_Rel/Elf32_Rel relocations. */ -#define ELF_MACHINE_NO_REL 1 -#define ELF_MACHINE_NO_RELA 0 - /* We define an initialization function. This is called very early in _dl_sysdep_start. */ #define DL_PLATFORM_INIT dl_platform_init () -- cgit v1.1