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828a54287c
When using clang as HOSTCC, the following warnings appear:
In file included from arch/mips/boot/tools/relocs_64.c:27:0:
arch/mips/boot/tools/relocs.c: In function ‘read_relocs’:
arch/mips/boot/tools/relocs.c:397:4: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
ELF_R_SYM(rel->r_info) = elf32_to_cpu(ELF_R_SYM(rel->r_info));
^~~~~~~~~
arch/mips/boot/tools/relocs.c:397:4: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
arch/mips/boot/tools/relocs.c: In function ‘walk_relocs’:
arch/mips/boot/tools/relocs.c:491:4: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
Elf_Sym *sym = &sh_symtab[ELF_R_SYM(rel->r_info)];
^~~~~~~
arch/mips/boot/tools/relocs.c: In function ‘do_reloc’:
arch/mips/boot/tools/relocs.c:502:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
unsigned r_type = ELF_R_TYPE(rel->r_info);
^~~~~~~~
arch/mips/boot/tools/relocs.c: In function ‘do_reloc_info’:
arch/mips/boot/tools/relocs.c:641:3: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
rel_type(ELF_R_TYPE(rel->r_info)),
^~~~~~~~
Fix them by making Elf64_Mips_Rela a union
Signed-off-by: Harvey Hunt <harvey.hunt@imgtec.com>
Acked-by: Matt Redfearn <matt.redfearn@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/13683/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
30 lines
911 B
C
30 lines
911 B
C
#include "relocs.h"
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#define ELF_BITS 64
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#define ELF_MACHINE EM_MIPS
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#define ELF_MACHINE_NAME "MIPS64"
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#define SHT_REL_TYPE SHT_RELA
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#define Elf_Rel Elf64_Rela
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typedef uint8_t Elf64_Byte;
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typedef union {
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struct {
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Elf64_Word r_sym; /* Symbol index. */
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Elf64_Byte r_ssym; /* Special symbol. */
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Elf64_Byte r_type3; /* Third relocation. */
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Elf64_Byte r_type2; /* Second relocation. */
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Elf64_Byte r_type; /* First relocation. */
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} fields;
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Elf64_Xword unused;
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} Elf64_Mips_Rela;
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#define ELF_CLASS ELFCLASS64
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#define ELF_R_SYM(val) (((Elf64_Mips_Rela *)(&val))->fields.r_sym)
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#define ELF_R_TYPE(val) (((Elf64_Mips_Rela *)(&val))->fields.r_type)
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#define ELF_ST_TYPE(o) ELF64_ST_TYPE(o)
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#define ELF_ST_BIND(o) ELF64_ST_BIND(o)
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#define ELF_ST_VISIBILITY(o) ELF64_ST_VISIBILITY(o)
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#include "relocs.c"
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