diff options
Diffstat (limited to 'gprof/gmon_io.c')
-rw-r--r-- | gprof/gmon_io.c | 648 |
1 files changed, 346 insertions, 302 deletions
diff --git a/gprof/gmon_io.c b/gprof/gmon_io.c index 45d1708..cec1973 100644 --- a/gprof/gmon_io.c +++ b/gprof/gmon_io.c @@ -8,7 +8,7 @@ #include "call_graph.h" #include "gmon_io.h" #include "gmon_out.h" -#include "gmon.h" /* fetch header for old format */ +#include "gmon.h" /* fetch header for old format */ #include "gprof.h" #include "hertz.h" #include "hist.h" @@ -21,334 +21,378 @@ int gmon_file_version = 0; /* 0 == old (non-versioned) file format */ * This probably ought to be in libbfd. */ bfd_vma -DEFUN(get_vma, (abfd, addr), bfd *abfd AND bfd_byte *addr) +DEFUN (get_vma, (abfd, addr), bfd * abfd AND bfd_byte * addr) { - switch (sizeof(bfd_vma)) { - case 4: return bfd_get_32(abfd, addr); - case 8: return bfd_get_64(abfd, addr); - default: - fprintf(stderr, "%s: bfd_vma has unexpected size of %ld bytes\n", - whoami, (long) sizeof(bfd_vma)); - done(1); - } /* switch */ -} /* get_vma */ + switch (sizeof (bfd_vma)) + { + case 4: + return bfd_get_32 (abfd, addr); + case 8: + return bfd_get_64 (abfd, addr); + default: + fprintf (stderr, "%s: bfd_vma has unexpected size of %ld bytes\n", + whoami, (long) sizeof (bfd_vma)); + done (1); + } /* switch */ +} /* get_vma */ /* * This probably ought to be in libbfd. */ void -DEFUN(put_vma, (abfd, val, addr), bfd *abfd AND bfd_vma val AND bfd_byte *addr) +DEFUN (put_vma, (abfd, val, addr), bfd * abfd AND bfd_vma val AND bfd_byte * addr) { - switch (sizeof(bfd_vma)) { - case 4: bfd_put_32(abfd, val, addr); break; - case 8: bfd_put_64(abfd, val, addr); break; - default: - fprintf(stderr, "%s: bfd_vma has unexpected size of %ld bytes\n", - whoami, (long) sizeof(bfd_vma)); - done(1); - } /* switch */ -} /* put_vma */ + switch (sizeof (bfd_vma)) + { + case 4: + bfd_put_32 (abfd, val, addr); + break; + case 8: + bfd_put_64 (abfd, val, addr); + break; + default: + fprintf (stderr, "%s: bfd_vma has unexpected size of %ld bytes\n", + whoami, (long) sizeof (bfd_vma)); + done (1); + } /* switch */ +} /* put_vma */ void -DEFUN(gmon_out_read, (filename), const char *filename) +DEFUN (gmon_out_read, (filename), const char *filename) { - FILE *ifp; - struct gmon_hdr ghdr; - unsigned char tag; - int nhist = 0, narcs = 0, nbbs = 0; - - /* open gmon.out file: */ - - if (strcmp(filename, "-") == 0) { - ifp = stdin; - } else { - ifp = fopen(filename, FOPEN_RB); - if (!ifp) { - perror(filename); - done(1); - } /* if */ - } /* if */ - if (fread(&ghdr, sizeof(struct gmon_hdr), 1, ifp) != 1) { - fprintf(stderr, "%s: file too short to be a gmon file\n", - filename); - done(1); - } /* if */ - - if ((file_format == FF_MAGIC) || - (file_format == FF_AUTO && !strncmp(&ghdr.cookie[0], GMON_MAGIC, 4))) + FILE *ifp; + struct gmon_hdr ghdr; + unsigned char tag; + int nhist = 0, narcs = 0, nbbs = 0; + + /* open gmon.out file: */ + + if (strcmp (filename, "-") == 0) + { + ifp = stdin; + } + else + { + ifp = fopen (filename, FOPEN_RB); + if (!ifp) + { + perror (filename); + done (1); + } /* if */ + } /* if */ + if (fread (&ghdr, sizeof (struct gmon_hdr), 1, ifp) != 1) + { + fprintf (stderr, "%s: file too short to be a gmon file\n", + filename); + done (1); + } /* if */ + + if ((file_format == FF_MAGIC) || + (file_format == FF_AUTO && !strncmp (&ghdr.cookie[0], GMON_MAGIC, 4))) + { + if (file_format == FF_MAGIC && strncmp (&ghdr.cookie[0], GMON_MAGIC, 4)) + { + fprintf (stderr, "%s: file `%s' has bad magic cookie\n", + whoami, filename); + done (1); + } /* if */ + + /* right magic, so it's probably really a new gmon.out file */ + + gmon_file_version = bfd_get_32 (core_bfd, (bfd_byte *) ghdr.version); + if (gmon_file_version != GMON_VERSION && gmon_file_version != 0) + { + fprintf (stderr, + "%s: file `%s' has unsupported version %d\n", + whoami, filename, gmon_file_version); + done (1); + } /* if */ + + /* read in all the records: */ + while (fread (&tag, sizeof (tag), 1, ifp) == 1) + { + switch (tag) + { + case GMON_TAG_TIME_HIST: + ++nhist; + gmon_input |= INPUT_HISTOGRAM; + hist_read_rec (ifp, filename); + break; + + case GMON_TAG_CG_ARC: + ++narcs; + gmon_input |= INPUT_CALL_GRAPH; + cg_read_rec (ifp, filename); + break; + + case GMON_TAG_BB_COUNT: + ++nbbs; + gmon_input |= INPUT_BB_COUNTS; + bb_read_rec (ifp, filename); + break; + + default: + fprintf (stderr, + "%s: %s: found bad tag %d (file corrupted?)\n", + whoami, filename, tag); + done (1); + } /* switch */ + } /* while */ + } + else if (file_format == FF_AUTO || file_format == FF_BSD) { - if (file_format == FF_MAGIC && strncmp(&ghdr.cookie[0], GMON_MAGIC, 4)) + struct hdr + { + bfd_vma low_pc; + bfd_vma high_pc; + int ncnt; + }; + int i, samp_bytes, count; + bfd_vma from_pc, self_pc; + struct raw_arc raw_arc; + struct raw_phdr raw; + static struct hdr h; + UNIT raw_bin_count; + struct hdr tmp; + + /* + * Information from a gmon.out file is in two parts: an array of + * sampling hits within pc ranges, and the arcs. + */ + gmon_input = INPUT_HISTOGRAM | INPUT_CALL_GRAPH; + + /* + * This fseek() ought to work even on stdin as long as it's + * not an interactive device (heck, is there anybody who would + * want to type in a gmon.out at the terminal?). + */ + if (fseek (ifp, 0, SEEK_SET) < 0) { - fprintf(stderr, "%s: file `%s' has bad magic cookie\n", - whoami, filename); - done(1); - } /* if */ - - /* right magic, so it's probably really a new gmon.out file */ - - gmon_file_version = bfd_get_32(core_bfd, (bfd_byte *) ghdr.version); - if (gmon_file_version != GMON_VERSION && gmon_file_version != 0) { - fprintf(stderr, - "%s: file `%s' has unsupported version %d\n", - whoami, filename, gmon_file_version); - done(1); - } /* if */ - - /* read in all the records: */ - while (fread(&tag, sizeof(tag), 1, ifp) == 1) { - switch (tag) { - case GMON_TAG_TIME_HIST: - ++nhist; - gmon_input |= INPUT_HISTOGRAM; - hist_read_rec(ifp, filename); - break; - - case GMON_TAG_CG_ARC: - ++narcs; - gmon_input |= INPUT_CALL_GRAPH; - cg_read_rec(ifp, filename); - break; - - case GMON_TAG_BB_COUNT: - ++nbbs; - gmon_input |= INPUT_BB_COUNTS; - bb_read_rec(ifp, filename); - break; - - default: - fprintf(stderr, - "%s: %s: found bad tag %d (file corrupted?)\n", - whoami, filename, tag); - done(1); - } /* switch */ - } /* while */ - } else if (file_format == FF_AUTO || file_format == FF_BSD) { - struct hdr { - bfd_vma low_pc; - bfd_vma high_pc; - int ncnt; - }; - int i, samp_bytes, count; - bfd_vma from_pc, self_pc; - struct raw_arc raw_arc; - struct raw_phdr raw; - static struct hdr h; - UNIT raw_bin_count; - struct hdr tmp; - - /* - * Information from a gmon.out file is in two parts: an array of - * sampling hits within pc ranges, and the arcs. - */ - gmon_input = INPUT_HISTOGRAM | INPUT_CALL_GRAPH; - - /* - * This fseek() ought to work even on stdin as long as it's - * not an interactive device (heck, is there anybody who would - * want to type in a gmon.out at the terminal?). - */ - if (fseek(ifp, 0, SEEK_SET) < 0) { - perror(filename); - done(1); - } /* if */ - if (fread(&raw, 1, sizeof(struct raw_phdr), ifp) - != sizeof(struct raw_phdr)) + perror (filename); + done (1); + } /* if */ + if (fread (&raw, 1, sizeof (struct raw_phdr), ifp) + != sizeof (struct raw_phdr)) { - fprintf(stderr, "%s: file too short to be a gmon file\n", - filename); - done(1); - } /* if */ - tmp.low_pc = get_vma(core_bfd, (bfd_byte *) &raw.low_pc[0]); - tmp.high_pc = get_vma(core_bfd, (bfd_byte *) &raw.high_pc[0]); - tmp.ncnt = bfd_get_32(core_bfd, (bfd_byte *) &raw.ncnt[0]); - if (s_highpc && (tmp.low_pc != h.low_pc || - tmp.high_pc != h.high_pc || tmp.ncnt != h.ncnt)) + fprintf (stderr, "%s: file too short to be a gmon file\n", + filename); + done (1); + } /* if */ + tmp.low_pc = get_vma (core_bfd, (bfd_byte *) & raw.low_pc[0]); + tmp.high_pc = get_vma (core_bfd, (bfd_byte *) & raw.high_pc[0]); + tmp.ncnt = bfd_get_32 (core_bfd, (bfd_byte *) & raw.ncnt[0]); + if (s_highpc && (tmp.low_pc != h.low_pc || + tmp.high_pc != h.high_pc || tmp.ncnt != h.ncnt)) { - fprintf(stderr, "%s: incompatible with first gmon file\n", - filename); - done(1); - } /* if */ - h = tmp; - s_lowpc = (bfd_vma) h.low_pc; - s_highpc = (bfd_vma) h.high_pc; - lowpc = (bfd_vma) h.low_pc / sizeof(UNIT); - highpc = (bfd_vma) h.high_pc / sizeof(UNIT); - samp_bytes = h.ncnt - sizeof(struct raw_phdr); - hist_num_bins = samp_bytes / sizeof (UNIT); - DBG(SAMPLEDEBUG, - printf("[gmon_out_read] lowpc 0x%lx highpc 0x%lx ncnt %d\n", + fprintf (stderr, "%s: incompatible with first gmon file\n", + filename); + done (1); + } /* if */ + h = tmp; + s_lowpc = (bfd_vma) h.low_pc; + s_highpc = (bfd_vma) h.high_pc; + lowpc = (bfd_vma) h.low_pc / sizeof (UNIT); + highpc = (bfd_vma) h.high_pc / sizeof (UNIT); + samp_bytes = h.ncnt - sizeof (struct raw_phdr); + hist_num_bins = samp_bytes / sizeof (UNIT); + DBG (SAMPLEDEBUG, + printf ("[gmon_out_read] lowpc 0x%lx highpc 0x%lx ncnt %d\n", h.low_pc, h.high_pc, h.ncnt); - printf("[gmon_out_read] s_lowpc 0x%lx s_highpc 0x%lx\n", + printf ("[gmon_out_read] s_lowpc 0x%lx s_highpc 0x%lx\n", s_lowpc, s_highpc); - printf("[gmon_out_read] lowpc 0x%lx highpc 0x%lx\n", + printf ("[gmon_out_read] lowpc 0x%lx highpc 0x%lx\n", lowpc, highpc); - printf("[gmon_out_read] samp_bytes %d hist_num_bins %d\n", + printf ("[gmon_out_read] samp_bytes %d hist_num_bins %d\n", samp_bytes, hist_num_bins)); - if (hist_num_bins) { - ++nhist; - } /* if */ - - if (!hist_sample) { - hist_sample = - (int*) xmalloc(hist_num_bins * sizeof(hist_sample[0])); - memset(hist_sample, 0, hist_num_bins * sizeof(hist_sample[0])); - } /* if */ - - for (i = 0; i < hist_num_bins; ++i) { - if (fread(raw_bin_count, sizeof(raw_bin_count), 1, ifp) != 1) { - fprintf(stderr, - "%s: unexpected EOF after reading %d/%d bins\n", - whoami, --i, hist_num_bins); - done(1); - } /* if */ - hist_sample[i] += bfd_get_16(core_bfd, (bfd_byte*) raw_bin_count); - } /* for */ - - /* - * The rest of the file consists of a bunch of <from,self,count> - * tuples: - */ - while (fread(&raw_arc, sizeof(raw_arc), 1, ifp) == 1) { - ++narcs; - from_pc = get_vma(core_bfd, (bfd_byte *) raw_arc.from_pc); - self_pc = get_vma(core_bfd, (bfd_byte *) raw_arc.self_pc); - count = bfd_get_32(core_bfd, (bfd_byte *) raw_arc.count); - DBG(SAMPLEDEBUG, - printf("[gmon_out_read] frompc 0x%lx selfpc 0x%lx count %d\n", - from_pc, self_pc, count)); - /* add this arc: */ - cg_tally(from_pc, self_pc, count); - } /* while */ - fclose(ifp); - - if (hz == HZ_WRONG) { - /* - * How many ticks per second? If we can't tell, report - * time in ticks. - */ - hz = hertz(); - if (hz == HZ_WRONG) { - hz = 1; - fprintf(stderr, "time is in ticks, not seconds\n"); - } /* if */ - } /* if */ - } else { - fprintf(stderr, "%s: don't know how to deal with file format %d\n", - whoami, file_format); - done(1); - } /* if */ - - if (output_style & STYLE_GMON_INFO) { - printf("File `%s' (version %d) contains:\n", - filename, gmon_file_version); - printf("\t%d histogram record%s\n", - nhist, nhist == 1 ? "" : "s"); - printf("\t%d call-graph record%s\n", - narcs, narcs == 1 ? "" : "s"); - printf("\t%d basic-block count record%s\n", - nbbs, nbbs == 1 ? "" : "s"); - first_output = FALSE; - } /* if */ -} /* gmon_out_read */ + if (hist_num_bins) + { + ++nhist; + } /* if */ + + if (!hist_sample) + { + hist_sample = + (int *) xmalloc (hist_num_bins * sizeof (hist_sample[0])); + memset (hist_sample, 0, hist_num_bins * sizeof (hist_sample[0])); + } /* if */ + + for (i = 0; i < hist_num_bins; ++i) + { + if (fread (raw_bin_count, sizeof (raw_bin_count), 1, ifp) != 1) + { + fprintf (stderr, + "%s: unexpected EOF after reading %d/%d bins\n", + whoami, --i, hist_num_bins); + done (1); + } /* if */ + hist_sample[i] += bfd_get_16 (core_bfd, (bfd_byte *) raw_bin_count); + } /* for */ + + /* + * The rest of the file consists of a bunch of <from,self,count> + * tuples: + */ + while (fread (&raw_arc, sizeof (raw_arc), 1, ifp) == 1) + { + ++narcs; + from_pc = get_vma (core_bfd, (bfd_byte *) raw_arc.from_pc); + self_pc = get_vma (core_bfd, (bfd_byte *) raw_arc.self_pc); + count = bfd_get_32 (core_bfd, (bfd_byte *) raw_arc.count); + DBG (SAMPLEDEBUG, + printf ("[gmon_out_read] frompc 0x%lx selfpc 0x%lx count %d\n", + from_pc, self_pc, count)); + /* add this arc: */ + cg_tally (from_pc, self_pc, count); + } /* while */ + fclose (ifp); + + if (hz == HZ_WRONG) + { + /* + * How many ticks per second? If we can't tell, report + * time in ticks. + */ + hz = hertz (); + if (hz == HZ_WRONG) + { + hz = 1; + fprintf (stderr, "time is in ticks, not seconds\n"); + } /* if */ + } /* if */ + } + else + { + fprintf (stderr, "%s: don't know how to deal with file format %d\n", + whoami, file_format); + done (1); + } /* if */ + + if (output_style & STYLE_GMON_INFO) + { + printf ("File `%s' (version %d) contains:\n", + filename, gmon_file_version); + printf ("\t%d histogram record%s\n", + nhist, nhist == 1 ? "" : "s"); + printf ("\t%d call-graph record%s\n", + narcs, narcs == 1 ? "" : "s"); + printf ("\t%d basic-block count record%s\n", + nbbs, nbbs == 1 ? "" : "s"); + first_output = FALSE; + } /* if */ +} /* gmon_out_read */ void -DEFUN(gmon_out_write, (filename), const char *filename) +DEFUN (gmon_out_write, (filename), const char *filename) { - FILE *ofp; - struct gmon_hdr ghdr; - - ofp = fopen(filename, FOPEN_WB); - if (!ofp) { - perror(filename); - done(1); - } /* if */ - - if (file_format == FF_AUTO || file_format == FF_MAGIC) { - /* write gmon header: */ - - memcpy(&ghdr.cookie[0], GMON_MAGIC, 4); - bfd_put_32(core_bfd, GMON_VERSION, (bfd_byte*) ghdr.version); - if (fwrite(&ghdr, sizeof(ghdr), 1, ofp) != 1) { - perror(filename); - done(1); - } /* if */ - - /* write execution time histogram if we have one: */ - if (gmon_input & INPUT_HISTOGRAM) { - hist_write_hist(ofp, filename); - } /* if */ - - /* write call graph arcs if we have any: */ - if (gmon_input & INPUT_CALL_GRAPH) { - cg_write_arcs(ofp, filename); - } /* if */ - - /* write basic-block info if we have it: */ - if (gmon_input & INPUT_BB_COUNTS) { - bb_write_blocks(ofp, filename); - } /* if */ - } else if (file_format == FF_BSD) { - struct raw_arc raw_arc; - UNIT raw_bin_count; - bfd_vma lpc, hpc; - int i, ncnt; - Arc *arc; - Sym *sym; - - put_vma(core_bfd, s_lowpc, (bfd_byte*) &lpc); - put_vma(core_bfd, s_highpc, (bfd_byte*) &hpc); - bfd_put_32(core_bfd, - hist_num_bins * sizeof(UNIT) + sizeof(struct raw_phdr), - (bfd_byte*) &ncnt); - - /* write header: */ - if (fwrite(&lpc, sizeof(lpc), 1, ofp) != 1 - || fwrite(&hpc, sizeof(hpc), 1, ofp) != 1 - || fwrite(&ncnt, sizeof(ncnt), 1, ofp) != 1) + FILE *ofp; + struct gmon_hdr ghdr; + + ofp = fopen (filename, FOPEN_WB); + if (!ofp) + { + perror (filename); + done (1); + } /* if */ + + if (file_format == FF_AUTO || file_format == FF_MAGIC) + { + /* write gmon header: */ + + memcpy (&ghdr.cookie[0], GMON_MAGIC, 4); + bfd_put_32 (core_bfd, GMON_VERSION, (bfd_byte *) ghdr.version); + if (fwrite (&ghdr, sizeof (ghdr), 1, ofp) != 1) + { + perror (filename); + done (1); + } /* if */ + + /* write execution time histogram if we have one: */ + if (gmon_input & INPUT_HISTOGRAM) + { + hist_write_hist (ofp, filename); + } /* if */ + + /* write call graph arcs if we have any: */ + if (gmon_input & INPUT_CALL_GRAPH) + { + cg_write_arcs (ofp, filename); + } /* if */ + + /* write basic-block info if we have it: */ + if (gmon_input & INPUT_BB_COUNTS) + { + bb_write_blocks (ofp, filename); + } /* if */ + } + else if (file_format == FF_BSD) + { + struct raw_arc raw_arc; + UNIT raw_bin_count; + bfd_vma lpc, hpc; + int i, ncnt; + Arc *arc; + Sym *sym; + + put_vma (core_bfd, s_lowpc, (bfd_byte *) & lpc); + put_vma (core_bfd, s_highpc, (bfd_byte *) & hpc); + bfd_put_32 (core_bfd, + hist_num_bins * sizeof (UNIT) + sizeof (struct raw_phdr), + (bfd_byte *) & ncnt); + + /* write header: */ + if (fwrite (&lpc, sizeof (lpc), 1, ofp) != 1 + || fwrite (&hpc, sizeof (hpc), 1, ofp) != 1 + || fwrite (&ncnt, sizeof (ncnt), 1, ofp) != 1) + { + perror (filename); + done (1); + } /* if */ + + /* dump the samples: */ + + for (i = 0; i < hist_num_bins; ++i) { - perror(filename); - done(1); - } /* if */ + bfd_put_16 (core_bfd, hist_sample[i], (bfd_byte *) & raw_bin_count[0]); + if (fwrite (&raw_bin_count[0], sizeof (raw_bin_count), 1, ofp) != 1) + { + perror (filename); + done (1); + } /* if */ + } /* for */ - /* dump the samples: */ + /* dump the normalized raw arc information: */ - for (i = 0; i < hist_num_bins; ++i) { - bfd_put_16(core_bfd, hist_sample[i], (bfd_byte*)&raw_bin_count[0]); - if (fwrite(&raw_bin_count[0], sizeof(raw_bin_count), 1, ofp) != 1) + for (sym = symtab.base; sym < symtab.limit; ++sym) + { + for (arc = sym->cg.children; arc; arc = arc->next_child) { - perror(filename); - done(1); - } /* if */ - } /* for */ - - /* dump the normalized raw arc information: */ - - for (sym = symtab.base; sym < symtab.limit; ++sym) { - for (arc = sym->cg.children; arc; arc = arc->next_child) { - put_vma(core_bfd, arc->parent->addr, - (bfd_byte*) raw_arc.from_pc); - put_vma(core_bfd, arc->child->addr, - (bfd_byte*) raw_arc.self_pc); - bfd_put_32(core_bfd, arc->count, (bfd_byte*) raw_arc.count); - if (fwrite(&raw_arc, sizeof(raw_arc), 1, ofp) != 1) { - perror(filename); - done(1); - } /* if */ - DBG(SAMPLEDEBUG, - printf("[dumpsum] frompc 0x%lx selfpc 0x%lx count %d\n", + put_vma (core_bfd, arc->parent->addr, + (bfd_byte *) raw_arc.from_pc); + put_vma (core_bfd, arc->child->addr, + (bfd_byte *) raw_arc.self_pc); + bfd_put_32 (core_bfd, arc->count, (bfd_byte *) raw_arc.count); + if (fwrite (&raw_arc, sizeof (raw_arc), 1, ofp) != 1) + { + perror (filename); + done (1); + } /* if */ + DBG (SAMPLEDEBUG, + printf ("[dumpsum] frompc 0x%lx selfpc 0x%lx count %d\n", arc->parent->addr, arc->child->addr, arc->count)); - } /* for */ - } /* for */ - fclose(ofp); - } else { - fprintf(stderr, "%s: don't know how to deal with file format %d\n", - whoami, file_format); - done(1); - } /* if */ -} /* gmon_out_write */ - - /*** gmon_out.c ***/ + } /* for */ + } /* for */ + fclose (ofp); + } + else + { + fprintf (stderr, "%s: don't know how to deal with file format %d\n", + whoami, file_format); + done (1); + } /* if */ +} /* gmon_out_write */ + +/*** gmon_out.c ***/ |