perf disasm: Add e_machine/e_flags to struct arch

Currently functions like get_dwarf_regnum only work with the host
architecture. Carry the elf machine and flags in struct arch so that
in disassembly these can be used to allow cross platform disassembly.

Reviewed-by: Masami Hiramatsu (Google) <[e-mail]>
Signed-off-by: Ian Rogers <[e-mail]>
Cc: Anup Patel <[e-mail]>
Cc: Yang Jihong <[e-mail]>
Cc: Palmer Dabbelt <[e-mail]>
Cc: David S. Miller <[e-mail]>
Cc: Albert Ou <[e-mail]>
Cc: Shenlin Liang <[e-mail]>
Cc: Nick Terrell <[e-mail]>
Cc: Guilherme Amadio <[e-mail]>
Cc: Steinar H. Gunderson <[e-mail]>
Cc: Changbin Du <[e-mail]>
Cc: Alexander Lobakin <[e-mail]>
Cc: Przemek Kitszel <[e-mail]>
Cc: Huacai Chen <[e-mail]>
Cc: Guo Ren <[e-mail]>
Cc: Masahiro Yamada <[e-mail]>
Cc: Will Deacon <[e-mail]>
Cc: James Clark <[e-mail]>
Cc: Mike Leach <[e-mail]>
Cc: Chen Pei <[e-mail]>
Cc: Leo Yan <[e-mail]>
Cc: Oliver Upton <[e-mail]>
Cc: Aditya Gupta <[e-mail]>
Cc: Kajol Jain <[e-mail]>
Cc: Athira Rajeev <[e-mail]>
Cc: [e-mail]
Cc: [e-mail]
Cc: Bibo Mao <[e-mail]>
Cc: John Garry <[e-mail]>
Cc: Atish Patra <[e-mail]>
Cc: Dima Kogan <[e-mail]>
Cc: Paul Walmsley <[e-mail]>
Cc: Dr. David Alan Gilbert <[e-mail]>
Cc: [e-mail]
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Namhyung Kim <[e-mail]>

tools/perf/arch/arc/annotate/instructions.c

···
 {
 	arch->initialized = true;
 	arch->objdump.comment_char = ';';
+	arch->e_machine = EM_ARC;
+	arch->e_flags = 0;
 	return 0;
 }

tools/perf/arch/arm/annotate/instructions.c

···
 	arch->associate_instruction_ops   = arm__associate_instruction_ops;
 	arch->objdump.comment_char	  = ';';
 	arch->objdump.skip_functions_char = '+';
+	arch->e_machine = EM_ARM;
+	arch->e_flags = 0;
 	return 0;
 
 out_free_call:

tools/perf/arch/arm64/annotate/instructions.c

···
 	arch->associate_instruction_ops   = arm64__associate_instruction_ops;
 	arch->objdump.comment_char	  = '/';
 	arch->objdump.skip_functions_char = '+';
+	arch->e_machine = EM_AARCH64;
+	arch->e_flags = 0;
 	return 0;
 
 out_free_call:

tools/perf/arch/csky/annotate/instructions.c

···
 	arch->initialized = true;
 	arch->objdump.comment_char = '/';
 	arch->associate_instruction_ops = csky__associate_ins_ops;
-
+	arch->e_machine = EM_CSKY;
+#if defined(__CSKYABIV2__)
+	arch->e_flags = EF_CSKY_ABIV2;
+#else
+	arch->e_flags = EF_CSKY_ABIV1;
+#endif
 	return 0;
 }

tools/perf/arch/loongarch/annotate/instructions.c

···
 		arch->associate_instruction_ops = loongarch__associate_ins_ops;
 		arch->initialized = true;
 		arch->objdump.comment_char = '#';
+		arch->e_machine = EM_LOONGARCH;
+		arch->e_flags = 0;
 	}
 
 	return 0;

tools/perf/arch/mips/annotate/instructions.c

···
 		arch->associate_instruction_ops = mips__associate_ins_ops;
 		arch->initialized = true;
 		arch->objdump.comment_char = '#';
+		arch->e_machine = EM_MIPS;
+		arch->e_flags = 0;
 	}
 
 	return 0;

tools/perf/arch/powerpc/annotate/instructions.c

···
 		arch->associate_instruction_ops = powerpc__associate_instruction_ops;
 		arch->objdump.comment_char      = '#';
 		annotate_opts.show_asm_raw = true;
+		arch->e_machine = EM_PPC;
+		arch->e_flags = 0;
 	}
 
 	return 0;

tools/perf/arch/riscv64/annotate/instructions.c

···
 		arch->associate_instruction_ops = riscv64__associate_ins_ops;
 		arch->initialized = true;
 		arch->objdump.comment_char = '#';
+		arch->e_machine = EM_RISCV;
+		arch->e_flags = 0;
 	}
 
 	return 0;

tools/perf/arch/s390/annotate/instructions.c

···
 			if (s390__cpuid_parse(arch, cpuid))
 				err = SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_CPUID_PARSING;
 		}
+		arch->e_machine = EM_S390;
+		arch->e_flags = 0;
 	}
 
 	return err;

tools/perf/arch/sparc/annotate/instructions.c

···
 		arch->initialized = true;
 		arch->associate_instruction_ops = sparc__associate_instruction_ops;
 		arch->objdump.comment_char = '#';
+		arch->e_machine = EM_SPARC;
+		arch->e_flags = 0;
 	}
 
 	return 0;

tools/perf/arch/x86/annotate/instructions.c

···
 		if (x86__cpuid_parse(arch, cpuid))
 			err = SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_CPUID_PARSING;
 	}
-
+	arch->e_machine = EM_X86_64;
+	arch->e_flags = 0;
 	arch->initialized = true;
 	return err;
 }

tools/perf/util/disasm.h

···
 				struct data_loc_info *dloc, Dwarf_Die *cu_die,
 				struct disasm_line *dl);
 #endif
+	/** @e_machine: ELF machine associated with arch. */
+	unsigned int e_machine;
+	/** @e_flags: Optional ELF flags associated with arch. */
+	unsigned int e_flags;
 };
 
 struct ins {