diff options
Diffstat (limited to 'cddl/contrib/opensolaris/tools/ctf/cvt/ctfconvert.c')
-rw-r--r-- | cddl/contrib/opensolaris/tools/ctf/cvt/ctfconvert.c | 263 |
1 files changed, 263 insertions, 0 deletions
diff --git a/cddl/contrib/opensolaris/tools/ctf/cvt/ctfconvert.c b/cddl/contrib/opensolaris/tools/ctf/cvt/ctfconvert.c new file mode 100644 index 0000000..efe6c27 --- /dev/null +++ b/cddl/contrib/opensolaris/tools/ctf/cvt/ctfconvert.c @@ -0,0 +1,263 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * Copyright 2006 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +/* + * Given a file containing sections with stabs data, convert the stabs data to + * CTF data, and replace the stabs sections with a CTF section. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <signal.h> +#include <string.h> +#include <fcntl.h> +#include <libgen.h> +#include <errno.h> +#include <assert.h> + +#include "ctftools.h" +#include "memory.h" + +const char *progname; +int debug_level = DEBUG_LEVEL; + +static char *infile = NULL; +static const char *outfile = NULL; +static int dynsym; + +static void +usage(void) +{ + (void) fprintf(stderr, + "Usage: %s [-gis] -l label | -L labelenv [-o outfile] object_file\n" + "\n" + " Note: if -L labelenv is specified and labelenv is not set in\n" + " the environment, a default value is used.\n", + progname); +} + +static void +terminate_cleanup(void) +{ +#if !defined(__FreeBSD__) + if (!outfile) { + fprintf(stderr, "Removing %s\n", infile); + unlink(infile); + } +#endif +} + +static void +handle_sig(int sig) +{ + terminate("Caught signal %d - exiting\n", sig); +} + +static int +file_read(tdata_t *td, char *filename, int ignore_non_c) +{ + typedef int (*reader_f)(tdata_t *, Elf *, char *); + static reader_f readers[] = { + stabs_read, + dw_read, + NULL + }; + + source_types_t source_types; + Elf *elf; + int i, rc, fd; + + if ((fd = open(filename, O_RDONLY)) < 0) + terminate("failed to open %s", filename); + + (void) elf_version(EV_CURRENT); + + if ((elf = elf_begin(fd, ELF_C_READ, NULL)) == NULL) { + close(fd); + terminate("failed to read %s: %s\n", filename, + elf_errmsg(-1)); + } + + source_types = built_source_types(elf, filename); + + if ((source_types == SOURCE_NONE || (source_types & SOURCE_UNKNOWN)) && + ignore_non_c) { + debug(1, "Ignoring file %s from unknown sources\n", filename); + exit(0); + } + + for (i = 0; readers[i] != NULL; i++) { + if ((rc = readers[i](td, elf, filename)) == 0) + break; + + assert(rc < 0 && errno == ENOENT); + } + + if (readers[i] == NULL) { + /* + * None of the readers found compatible type data. + */ + + if (findelfsecidx(elf, filename, ".debug") >= 0) { + terminate("%s: DWARF version 1 is not supported\n", + filename); + } + + if (!(source_types & SOURCE_C) && ignore_non_c) { + debug(1, "Ignoring file %s not built from C sources\n", + filename); + exit(0); + } + + rc = 0; + } else { + rc = 1; + } + + (void) elf_end(elf); + (void) close(fd); + + return (rc); +} + +int +main(int argc, char **argv) +{ + tdata_t *filetd, *mstrtd; + const char *label = NULL; + int verbose = 0; + int ignore_non_c = 0; + int keep_stabs = 0; + int c; + +#if defined(sun) + sighold(SIGINT); + sighold(SIGQUIT); + sighold(SIGTERM); +#endif + + progname = basename(argv[0]); + + if (getenv("CTFCONVERT_DEBUG_LEVEL")) + debug_level = atoi(getenv("CTFCONVERT_DEBUG_LEVEL")); + if (getenv("CTFCONVERT_DEBUG_PARSE")) + debug_parse = atoi(getenv("CTFCONVERT_DEBUG_PARSE")); + + while ((c = getopt(argc, argv, ":l:L:o:givs")) != EOF) { + switch (c) { + case 'l': + label = optarg; + break; + case 'L': + if ((label = getenv(optarg)) == NULL) + label = CTF_DEFAULT_LABEL; + break; + case 'o': + outfile = optarg; + break; + case 's': + dynsym = CTF_USE_DYNSYM; + break; + case 'i': + ignore_non_c = 1; + break; + case 'g': + keep_stabs = CTF_KEEP_STABS; + break; + case 'v': + verbose = 1; + break; + default: + usage(); + exit(2); + } + } + + if (getenv("STRIPSTABS_KEEP_STABS") != NULL) + keep_stabs = CTF_KEEP_STABS; + + if (argc - optind != 1 || label == NULL) { + usage(); + exit(2); + } + + infile = argv[optind]; + if (access(infile, R_OK) != 0) + terminate("Can't access %s", infile); + + /* + * Upon receipt of a signal, we want to clean up and exit. Our + * primary goal during cleanup is to restore the system to a state + * such that a subsequent make will eventually cause this command to + * be re-run. If we remove the input file (which we do if we get a + * signal and the user didn't specify a separate output file), make + * will need to rebuild the input file, and will then need to re-run + * ctfconvert, which is what we want. + */ + set_terminate_cleanup(terminate_cleanup); + +#if defined(sun) + sigset(SIGINT, handle_sig); + sigset(SIGQUIT, handle_sig); + sigset(SIGTERM, handle_sig); +#else + signal(SIGINT, handle_sig); + signal(SIGQUIT, handle_sig); + signal(SIGTERM, handle_sig); +#endif + + filetd = tdata_new(); + + if (!file_read(filetd, infile, ignore_non_c)) + terminate("%s doesn't have type data to convert\n", infile); + + if (verbose) + iidesc_stats(filetd->td_iihash); + + mstrtd = tdata_new(); + merge_into_master(filetd, mstrtd, NULL, 1); + + tdata_label_add(mstrtd, label, CTF_LABEL_LASTIDX); + + /* + * If the user supplied an output file that is different from the + * input file, write directly to the output file. Otherwise, write + * to a temporary file, and replace the input file when we're done. + */ + if (outfile && strcmp(infile, outfile) != 0) { + write_ctf(mstrtd, infile, outfile, dynsym | keep_stabs); + } else { + char *tmpname = mktmpname(infile, ".ctf"); + write_ctf(mstrtd, infile, tmpname, dynsym | keep_stabs); + if (rename(tmpname, infile) != 0) + terminate("Couldn't rename temp file %s", tmpname); + free(tmpname); + } + + return (0); +} |