scripts/sorttable: Rename 'sortextable' to 'sorttable'

Use a more generic name for additional table sorting usecases,
such as the upcoming ORC table sorting feature. This tool is
not tied to exception table sorting anymore.

No functional changes intended.

[ mingo: Rewrote the changelog. ]

Signed-off-by: Shile Zhang <shile.zhang@linux.alibaba.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Michal Marek <michal.lkml@markovi.net>
Cc: linux-kbuild@vger.kernel.org
Link: https://lkml.kernel.org/r/20191204004633.88660-6-shile.zhang@linux.alibaba.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 0 insertions, 210 deletions

diff --git a/scripts/sortextable.h b/scripts/sortextable.h
deleted file mode 100644
index 6485513f7cae..000000000000
--- a/scripts/sortextable.h
+++ /dev/null
@@ -1,210 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * sortextable.h
- *
- * Copyright 2011 - 2012 Cavium, Inc.
- *
- * Some of this code was taken out of recordmcount.h written by:
- *
- * Copyright 2009 John F. Reiser <jreiser@BitWagon.com>. All rights reserved.
- * Copyright 2010 Steven Rostedt <srostedt@redhat.com>, Red Hat Inc.
- */
-
-#undef extable_ent_size
-#undef compare_extable
-#undef do_sort
-#undef Elf_Addr
-#undef Elf_Ehdr
-#undef Elf_Shdr
-#undef Elf_Rel
-#undef Elf_Rela
-#undef Elf_Sym
-#undef ELF_R_SYM
-#undef Elf_r_sym
-#undef ELF_R_INFO
-#undef Elf_r_info
-#undef ELF_ST_BIND
-#undef ELF_ST_TYPE
-#undef fn_ELF_R_SYM
-#undef fn_ELF_R_INFO
-#undef uint_t
-#undef _r
-#undef _w
-
-#ifdef SORTEXTABLE_64
-# define extable_ent_size	16
-# define compare_extable	compare_extable_64
-# define do_sort		do_sort_64
-# define Elf_Addr		Elf64_Addr
-# define Elf_Ehdr		Elf64_Ehdr
-# define Elf_Shdr		Elf64_Shdr
-# define Elf_Rel		Elf64_Rel
-# define Elf_Rela		Elf64_Rela
-# define Elf_Sym		Elf64_Sym
-# define ELF_R_SYM		ELF64_R_SYM
-# define Elf_r_sym		Elf64_r_sym
-# define ELF_R_INFO		ELF64_R_INFO
-# define Elf_r_info		Elf64_r_info
-# define ELF_ST_BIND		ELF64_ST_BIND
-# define ELF_ST_TYPE		ELF64_ST_TYPE
-# define fn_ELF_R_SYM		fn_ELF64_R_SYM
-# define fn_ELF_R_INFO		fn_ELF64_R_INFO
-# define uint_t			uint64_t
-# define _r			r8
-# define _w			w8
-#else
-# define extable_ent_size	8
-# define compare_extable	compare_extable_32
-# define do_sort		do_sort_32
-# define Elf_Addr		Elf32_Addr
-# define Elf_Ehdr		Elf32_Ehdr
-# define Elf_Shdr		Elf32_Shdr
-# define Elf_Rel		Elf32_Rel
-# define Elf_Rela		Elf32_Rela
-# define Elf_Sym		Elf32_Sym
-# define ELF_R_SYM		ELF32_R_SYM
-# define Elf_r_sym		Elf32_r_sym
-# define ELF_R_INFO		ELF32_R_INFO
-# define Elf_r_info		Elf32_r_info
-# define ELF_ST_BIND		ELF32_ST_BIND
-# define ELF_ST_TYPE		ELF32_ST_TYPE
-# define fn_ELF_R_SYM		fn_ELF32_R_SYM
-# define fn_ELF_R_INFO		fn_ELF32_R_INFO
-# define uint_t			uint32_t
-# define _r			r
-# define _w			w
-#endif
-
-static int compare_extable(const void *a, const void *b)
-{
-	Elf_Addr av = _r(a);
-	Elf_Addr bv = _r(b);
-
-	if (av < bv)
-		return -1;
-	if (av > bv)
-		return 1;
-	return 0;
-}
-
-static int do_sort(Elf_Ehdr *ehdr,
-		   char const *const fname,
-		   table_sort_t custom_sort)
-{
-	Elf_Shdr *s, *shdr = (Elf_Shdr *)((char *)ehdr + _r(&ehdr->e_shoff));
-	Elf_Shdr *strtab_sec = NULL;
-	Elf_Shdr *symtab_sec = NULL;
-	Elf_Shdr *extab_sec = NULL;
-	Elf_Sym *sym;
-	const Elf_Sym *symtab;
-	Elf32_Word *symtab_shndx = NULL;
-	Elf_Sym *sort_needed_sym = NULL;
-	Elf_Shdr *sort_needed_sec;
-	Elf_Rel *relocs = NULL;
-	int relocs_size = 0;
-	uint32_t *sort_needed_loc;
-	const char *secstrings;
-	const char *strtab;
-	char *extab_image;
-	int extab_index = 0;
-	int i;
-	int idx;
-	unsigned int shnum;
-	unsigned int shstrndx;
-
-	shstrndx = r2(&ehdr->e_shstrndx);
-	if (shstrndx == SHN_XINDEX)
-		shstrndx = r(&shdr[0].sh_link);
-	secstrings = (const char *)ehdr + _r(&shdr[shstrndx].sh_offset);
-
-	shnum = r2(&ehdr->e_shnum);
-	if (shnum == SHN_UNDEF)
-		shnum = _r(&shdr[0].sh_size);
-
-	for (i = 0, s = shdr; s < shdr + shnum; i++, s++) {
-		idx = r(&s->sh_name);
-		if (!strcmp(secstrings + idx, "__ex_table")) {
-			extab_sec = s;
-			extab_index = i;
-		}
-		if (!strcmp(secstrings + idx, ".symtab"))
-			symtab_sec = s;
-		if (!strcmp(secstrings + idx, ".strtab"))
-			strtab_sec = s;
-
-		if ((r(&s->sh_type) == SHT_REL ||
-		     r(&s->sh_type) == SHT_RELA) &&
-		    r(&s->sh_info) == extab_index) {
-			relocs = (void *)ehdr + _r(&s->sh_offset);
-			relocs_size = _r(&s->sh_size);
-		}
-		if (r(&s->sh_type) == SHT_SYMTAB_SHNDX)
-			symtab_shndx = (Elf32_Word *)((const char *)ehdr +
-						      _r(&s->sh_offset));
-	}
-
-	if (!extab_sec) {
-		fprintf(stderr,	"no __ex_table in file: %s\n", fname);
-		return -1;
-	}
-
-	if (!symtab_sec) {
-		fprintf(stderr,	"no .symtab in file: %s\n", fname);
-		return -1;
-	}
-
-	if (!strtab_sec) {
-		fprintf(stderr,	"no .strtab in file: %s\n", fname);
-		return -1;
-	}
-
-	extab_image = (void *)ehdr + _r(&extab_sec->sh_offset);
-	strtab = (const char *)ehdr + _r(&strtab_sec->sh_offset);
-	symtab = (const Elf_Sym *)((const char *)ehdr +
-						  _r(&symtab_sec->sh_offset));
-
-	if (custom_sort) {
-		custom_sort(extab_image, _r(&extab_sec->sh_size));
-	} else {
-		int num_entries = _r(&extab_sec->sh_size) / extable_ent_size;
-		qsort(extab_image, num_entries,
-		      extable_ent_size, compare_extable);
-	}
-
-	/* If there were relocations, we no longer need them. */
-	if (relocs)
-		memset(relocs, 0, relocs_size);
-
-	/* find the flag main_extable_sort_needed */
-	for (sym = (void *)ehdr + _r(&symtab_sec->sh_offset);
-	     sym < sym + _r(&symtab_sec->sh_size) / sizeof(Elf_Sym);
-	     sym++) {
-		if (ELF_ST_TYPE(sym->st_info) != STT_OBJECT)
-			continue;
-		if (!strcmp(strtab + r(&sym->st_name),
-			    "main_extable_sort_needed")) {
-			sort_needed_sym = sym;
-			break;
-		}
-	}
-
-	if (!sort_needed_sym) {
-		fprintf(stderr,
-			"no main_extable_sort_needed symbol in file: %s\n",
-			fname);
-		return -1;
-	}
-
-	sort_needed_sec = &shdr[get_secindex(r2(&sym->st_shndx),
-					     sort_needed_sym - symtab,
-					     symtab_shndx)];
-	sort_needed_loc = (void *)ehdr +
-		_r(&sort_needed_sec->sh_offset) +
-		_r(&sort_needed_sym->st_value) -
-		_r(&sort_needed_sec->sh_addr);
-
-	/* extable has been sorted, clear the flag */
-	w(0, sort_needed_loc);
-
-	return 0;
-}