Moved, renamed, and deleted files

The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.

1 files changed, 0 insertions, 471 deletions

diff --git a/ANDROID_3.4.5/scripts/recordmcount.c b/ANDROID_3.4.5/scripts/recordmcount.c
deleted file mode 100644
index ee52cb8e..00000000
--- a/ANDROID_3.4.5/scripts/recordmcount.c
+++ /dev/null
@@ -1,471 +0,0 @@
-/*
- * recordmcount.c: construct a table of the locations of calls to 'mcount'
- * so that ftrace can find them quickly.
- * Copyright 2009 John F. Reiser <jreiser@BitWagon.com>.  All rights reserved.
- * Licensed under the GNU General Public License, version 2 (GPLv2).
- *
- * Restructured to fit Linux format, as well as other updates:
- *  Copyright 2010 Steven Rostedt <srostedt@redhat.com>, Red Hat Inc.
- */
-
-/*
- * Strategy: alter the .o file in-place.
- *
- * Append a new STRTAB that has the new section names, followed by a new array
- * ElfXX_Shdr[] that has the new section headers, followed by the section
- * contents for __mcount_loc and its relocations.  The old shstrtab strings,
- * and the old ElfXX_Shdr[] array, remain as "garbage" (commonly, a couple
- * kilobytes.)  Subsequent processing by /bin/ld (or the kernel module loader)
- * will ignore the garbage regions, because they are not designated by the
- * new .e_shoff nor the new ElfXX_Shdr[].  [In order to remove the garbage,
- * then use "ld -r" to create a new file that omits the garbage.]
- */
-
-#include <sys/types.h>
-#include <sys/mman.h>
-#include <sys/stat.h>
-#include <getopt.h>
-#include <elf.h>
-#include <fcntl.h>
-#include <setjmp.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-static int fd_map;	/* File descriptor for file being modified. */
-static int mmap_failed; /* Boolean flag. */
-static void *ehdr_curr; /* current ElfXX_Ehdr *  for resource cleanup */
-static char gpfx;	/* prefix for global symbol name (sometimes '_') */
-static struct stat sb;	/* Remember .st_size, etc. */
-static jmp_buf jmpenv;	/* setjmp/longjmp per-file error escape */
-static const char *altmcount;	/* alternate mcount symbol name */
-static int warn_on_notrace_sect; /* warn when section has mcount not being recorded */
-
-/* setjmp() return values */
-enum {
-	SJ_SETJMP = 0,  /* hardwired first return */
-	SJ_FAIL,
-	SJ_SUCCEED
-};
-
-/* Per-file resource cleanup when multiple files. */
-static void
-cleanup(void)
-{
-	if (!mmap_failed)
-		munmap(ehdr_curr, sb.st_size);
-	else
-		free(ehdr_curr);
-	close(fd_map);
-}
-
-static void __attribute__((noreturn))
-fail_file(void)
-{
-	cleanup();
-	longjmp(jmpenv, SJ_FAIL);
-}
-
-static void __attribute__((noreturn))
-succeed_file(void)
-{
-	cleanup();
-	longjmp(jmpenv, SJ_SUCCEED);
-}
-
-/* ulseek, uread, ...:  Check return value for errors. */
-
-static off_t
-ulseek(int const fd, off_t const offset, int const whence)
-{
-	off_t const w = lseek(fd, offset, whence);
-	if (w == (off_t)-1) {
-		perror("lseek");
-		fail_file();
-	}
-	return w;
-}
-
-static size_t
-uread(int const fd, void *const buf, size_t const count)
-{
-	size_t const n = read(fd, buf, count);
-	if (n != count) {
-		perror("read");
-		fail_file();
-	}
-	return n;
-}
-
-static size_t
-uwrite(int const fd, void const *const buf, size_t const count)
-{
-	size_t const n = write(fd, buf, count);
-	if (n != count) {
-		perror("write");
-		fail_file();
-	}
-	return n;
-}
-
-static void *
-umalloc(size_t size)
-{
-	void *const addr = malloc(size);
-	if (addr == 0) {
-		fprintf(stderr, "malloc failed: %zu bytes\n", size);
-		fail_file();
-	}
-	return addr;
-}
-
-static unsigned char ideal_nop5_x86_64[5] = { 0x0f, 0x1f, 0x44, 0x00, 0x00 };
-static unsigned char ideal_nop5_x86_32[5] = { 0x3e, 0x8d, 0x74, 0x26, 0x00 };
-static unsigned char *ideal_nop;
-
-static char rel_type_nop;
-
-static int (*make_nop)(void *map, size_t const offset);
-
-static int make_nop_x86(void *map, size_t const offset)
-{
-	uint32_t *ptr;
-	unsigned char *op;
-
-	/* Confirm we have 0xe8 0x0 0x0 0x0 0x0 */
-	ptr = map + offset;
-	if (*ptr != 0)
-		return -1;
-
-	op = map + offset - 1;
-	if (*op != 0xe8)
-		return -1;
-
-	/* convert to nop */
-	ulseek(fd_map, offset - 1, SEEK_SET);
-	uwrite(fd_map, ideal_nop, 5);
-	return 0;
-}
-
-/*
- * Get the whole file as a programming convenience in order to avoid
- * malloc+lseek+read+free of many pieces.  If successful, then mmap
- * avoids copying unused pieces; else just read the whole file.
- * Open for both read and write; new info will be appended to the file.
- * Use MAP_PRIVATE so that a few changes to the in-memory ElfXX_Ehdr
- * do not propagate to the file until an explicit overwrite at the last.
- * This preserves most aspects of consistency (all except .st_size)
- * for simultaneous readers of the file while we are appending to it.
- * However, multiple writers still are bad.  We choose not to use
- * locking because it is expensive and the use case of kernel build
- * makes multiple writers unlikely.
- */
-static void *mmap_file(char const *fname)
-{
-	void *addr;
-
-	fd_map = open(fname, O_RDWR);
-	if (fd_map < 0 || fstat(fd_map, &sb) < 0) {
-		perror(fname);
-		fail_file();
-	}
-	if (!S_ISREG(sb.st_mode)) {
-		fprintf(stderr, "not a regular file: %s\n", fname);
-		fail_file();
-	}
-	addr = mmap(0, sb.st_size, PROT_READ|PROT_WRITE, MAP_PRIVATE,
-		    fd_map, 0);
-	mmap_failed = 0;
-	if (addr == MAP_FAILED) {
-		mmap_failed = 1;
-		addr = umalloc(sb.st_size);
-		uread(fd_map, addr, sb.st_size);
-	}
-	return addr;
-}
-
-/* w8rev, w8nat, ...: Handle endianness. */
-
-static uint64_t w8rev(uint64_t const x)
-{
-	return   ((0xff & (x >> (0 * 8))) << (7 * 8))
-	       | ((0xff & (x >> (1 * 8))) << (6 * 8))
-	       | ((0xff & (x >> (2 * 8))) << (5 * 8))
-	       | ((0xff & (x >> (3 * 8))) << (4 * 8))
-	       | ((0xff & (x >> (4 * 8))) << (3 * 8))
-	       | ((0xff & (x >> (5 * 8))) << (2 * 8))
-	       | ((0xff & (x >> (6 * 8))) << (1 * 8))
-	       | ((0xff & (x >> (7 * 8))) << (0 * 8));
-}
-
-static uint32_t w4rev(uint32_t const x)
-{
-	return   ((0xff & (x >> (0 * 8))) << (3 * 8))
-	       | ((0xff & (x >> (1 * 8))) << (2 * 8))
-	       | ((0xff & (x >> (2 * 8))) << (1 * 8))
-	       | ((0xff & (x >> (3 * 8))) << (0 * 8));
-}
-
-static uint32_t w2rev(uint16_t const x)
-{
-	return   ((0xff & (x >> (0 * 8))) << (1 * 8))
-	       | ((0xff & (x >> (1 * 8))) << (0 * 8));
-}
-
-static uint64_t w8nat(uint64_t const x)
-{
-	return x;
-}
-
-static uint32_t w4nat(uint32_t const x)
-{
-	return x;
-}
-
-static uint32_t w2nat(uint16_t const x)
-{
-	return x;
-}
-
-static uint64_t (*w8)(uint64_t);
-static uint32_t (*w)(uint32_t);
-static uint32_t (*w2)(uint16_t);
-
-/* Names of the sections that could contain calls to mcount. */
-static int
-is_mcounted_section_name(char const *const txtname)
-{
-	return strcmp(".text",           txtname) == 0 ||
-		strcmp(".ref.text",      txtname) == 0 ||
-		strcmp(".sched.text",    txtname) == 0 ||
-		strcmp(".spinlock.text", txtname) == 0 ||
-		strcmp(".irqentry.text", txtname) == 0 ||
-		strcmp(".kprobes.text", txtname) == 0 ||
-		strcmp(".text.unlikely", txtname) == 0;
-}
-
-/* 32 bit and 64 bit are very similar */
-#include "recordmcount.h"
-#define RECORD_MCOUNT_64
-#include "recordmcount.h"
-
-/* 64-bit EM_MIPS has weird ELF64_Rela.r_info.
- * http://techpubs.sgi.com/library/manuals/4000/007-4658-001/pdf/007-4658-001.pdf
- * We interpret Table 29 Relocation Operation (Elf64_Rel, Elf64_Rela) [p.40]
- * to imply the order of the members; the spec does not say so.
- *	typedef unsigned char Elf64_Byte;
- * fails on MIPS64 because their <elf.h> already has it!
- */
-
-typedef uint8_t myElf64_Byte;		/* Type for a 8-bit quantity.  */
-
-union mips_r_info {
-	Elf64_Xword r_info;
-	struct {
-		Elf64_Word r_sym;		/* Symbol index.  */
-		myElf64_Byte r_ssym;		/* Special symbol.  */
-		myElf64_Byte r_type3;		/* Third relocation.  */
-		myElf64_Byte r_type2;		/* Second relocation.  */
-		myElf64_Byte r_type;		/* First relocation.  */
-	} r_mips;
-};
-
-static uint64_t MIPS64_r_sym(Elf64_Rel const *rp)
-{
-	return w(((union mips_r_info){ .r_info = rp->r_info }).r_mips.r_sym);
-}
-
-static void MIPS64_r_info(Elf64_Rel *const rp, unsigned sym, unsigned type)
-{
-	rp->r_info = ((union mips_r_info){
-		.r_mips = { .r_sym = w(sym), .r_type = type }
-	}).r_info;
-}
-
-static void
-do_file(char const *const fname)
-{
-	Elf32_Ehdr *const ehdr = mmap_file(fname);
-	unsigned int reltype = 0;
-
-	ehdr_curr = ehdr;
-	w = w4nat;
-	w2 = w2nat;
-	w8 = w8nat;
-	switch (ehdr->e_ident[EI_DATA]) {
-		static unsigned int const endian = 1;
-	default:
-		fprintf(stderr, "unrecognized ELF data encoding %d: %s\n",
-			ehdr->e_ident[EI_DATA], fname);
-		fail_file();
-		break;
-	case ELFDATA2LSB:
-		if (*(unsigned char const *)&endian != 1) {
-			/* main() is big endian, file.o is little endian. */
-			w = w4rev;
-			w2 = w2rev;
-			w8 = w8rev;
-		}
-		break;
-	case ELFDATA2MSB:
-		if (*(unsigned char const *)&endian != 0) {
-			/* main() is little endian, file.o is big endian. */
-			w = w4rev;
-			w2 = w2rev;
-			w8 = w8rev;
-		}
-		break;
-	}  /* end switch */
-	if (memcmp(ELFMAG, ehdr->e_ident, SELFMAG) != 0
-	||  w2(ehdr->e_type) != ET_REL
-	||  ehdr->e_ident[EI_VERSION] != EV_CURRENT) {
-		fprintf(stderr, "unrecognized ET_REL file %s\n", fname);
-		fail_file();
-	}
-
-	gpfx = 0;
-	switch (w2(ehdr->e_machine)) {
-	default:
-		fprintf(stderr, "unrecognized e_machine %d %s\n",
-			w2(ehdr->e_machine), fname);
-		fail_file();
-		break;
-	case EM_386:
-		reltype = R_386_32;
-		make_nop = make_nop_x86;
-		ideal_nop = ideal_nop5_x86_32;
-		mcount_adjust_32 = -1;
-		break;
-	case EM_ARM:	 reltype = R_ARM_ABS32;
-			 altmcount = "__gnu_mcount_nc";
-			 break;
-	case EM_IA_64:	 reltype = R_IA64_IMM64;   gpfx = '_'; break;
-	case EM_MIPS:	 /* reltype: e_class    */ gpfx = '_'; break;
-	case EM_PPC:	 reltype = R_PPC_ADDR32;   gpfx = '_'; break;
-	case EM_PPC64:	 reltype = R_PPC64_ADDR64; gpfx = '_'; break;
-	case EM_S390:    /* reltype: e_class    */ gpfx = '_'; break;
-	case EM_SH:	 reltype = R_SH_DIR32;                 break;
-	case EM_SPARCV9: reltype = R_SPARC_64;     gpfx = '_'; break;
-	case EM_X86_64:
-		make_nop = make_nop_x86;
-		ideal_nop = ideal_nop5_x86_64;
-		reltype = R_X86_64_64;
-		mcount_adjust_64 = -1;
-		break;
-	}  /* end switch */
-
-	switch (ehdr->e_ident[EI_CLASS]) {
-	default:
-		fprintf(stderr, "unrecognized ELF class %d %s\n",
-			ehdr->e_ident[EI_CLASS], fname);
-		fail_file();
-		break;
-	case ELFCLASS32:
-		if (w2(ehdr->e_ehsize) != sizeof(Elf32_Ehdr)
-		||  w2(ehdr->e_shentsize) != sizeof(Elf32_Shdr)) {
-			fprintf(stderr,
-				"unrecognized ET_REL file: %s\n", fname);
-			fail_file();
-		}
-		if (w2(ehdr->e_machine) == EM_S390) {
-			reltype = R_390_32;
-			mcount_adjust_32 = -4;
-		}
-		if (w2(ehdr->e_machine) == EM_MIPS) {
-			reltype = R_MIPS_32;
-			is_fake_mcount32 = MIPS32_is_fake_mcount;
-		}
-		do32(ehdr, fname, reltype);
-		break;
-	case ELFCLASS64: {
-		Elf64_Ehdr *const ghdr = (Elf64_Ehdr *)ehdr;
-		if (w2(ghdr->e_ehsize) != sizeof(Elf64_Ehdr)
-		||  w2(ghdr->e_shentsize) != sizeof(Elf64_Shdr)) {
-			fprintf(stderr,
-				"unrecognized ET_REL file: %s\n", fname);
-			fail_file();
-		}
-		if (w2(ghdr->e_machine) == EM_S390) {
-			reltype = R_390_64;
-			mcount_adjust_64 = -8;
-		}
-		if (w2(ghdr->e_machine) == EM_MIPS) {
-			reltype = R_MIPS_64;
-			Elf64_r_sym = MIPS64_r_sym;
-			Elf64_r_info = MIPS64_r_info;
-			is_fake_mcount64 = MIPS64_is_fake_mcount;
-		}
-		do64(ghdr, fname, reltype);
-		break;
-	}
-	}  /* end switch */
-
-	cleanup();
-}
-
-int
-main(int argc, char *argv[])
-{
-	const char ftrace[] = "/ftrace.o";
-	int ftrace_size = sizeof(ftrace) - 1;
-	int n_error = 0;  /* gcc-4.3.0 false positive complaint */
-	int c;
-	int i;
-
-	while ((c = getopt(argc, argv, "w")) >= 0) {
-		switch (c) {
-		case 'w':
-			warn_on_notrace_sect = 1;
-			break;
-		default:
-			fprintf(stderr, "usage: recordmcount [-w] file.o...\n");
-			return 0;
-		}
-	}
-
-	if ((argc - optind) < 1) {
-		fprintf(stderr, "usage: recordmcount [-w] file.o...\n");
-		return 0;
-	}
-
-	/* Process each file in turn, allowing deep failure. */
-	for (i = optind; i < argc; i++) {
-		char *file = argv[i];
-		int const sjval = setjmp(jmpenv);
-		int len;
-
-		/*
-		 * The file kernel/trace/ftrace.o references the mcount
-		 * function but does not call it. Since ftrace.o should
-		 * not be traced anyway, we just skip it.
-		 */
-		len = strlen(file);
-		if (len >= ftrace_size &&
-		    strcmp(file + (len - ftrace_size), ftrace) == 0)
-			continue;
-
-		switch (sjval) {
-		default:
-			fprintf(stderr, "internal error: %s\n", file);
-			exit(1);
-			break;
-		case SJ_SETJMP:    /* normal sequence */
-			/* Avoid problems if early cleanup() */
-			fd_map = -1;
-			ehdr_curr = NULL;
-			mmap_failed = 1;
-			do_file(file);
-			break;
-		case SJ_FAIL:    /* error in do_file or below */
-			++n_error;
-			break;
-		case SJ_SUCCEED:    /* premature success */
-			/* do nothing */
-			break;
-		}  /* end switch */
-	}
-	return !!n_error;
-}
-
-