diff options
Diffstat (limited to 'gprof/hist.c')
| -rw-r--r-- | gprof/hist.c | 829 |
1 files changed, 459 insertions, 370 deletions
diff --git a/gprof/hist.c b/gprof/hist.c index 0b2719b..2b015a4 100644 --- a/gprof/hist.c +++ b/gprof/hist.c @@ -13,7 +13,7 @@ #include "utils.h" /* declarations of automatically generated functions to output blurbs: */ -extern void flat_blurb PARAMS((FILE *fp)); +extern void flat_blurb PARAMS ((FILE * fp)); bfd_vma s_lowpc; /* lowest address in .text */ bfd_vma s_highpc = 0; /* highest address in .text */ @@ -21,8 +21,8 @@ bfd_vma lowpc, highpc; /* same, but expressed in UNITs */ int hist_num_bins = 0; /* number of histogram samples */ int *hist_sample = 0; /* histogram samples (shorts in the file!) */ double hist_scale; -char hist_dimension[sizeof(((struct gmon_hist_hdr*)0)->dimen) + 1] = - "seconds"; +char hist_dimension[sizeof (((struct gmon_hist_hdr *) 0)->dimen) + 1] = + "seconds"; char hist_dimension_abbrev = 's'; static double accum_time; /* accumulated time so far for print_line() */ @@ -31,21 +31,57 @@ static double total_time; /* total time for all routines */ * Table of SI prefixes for powers of 10 (used to automatically * scale some of the values in the flat profile). */ -const struct { +const struct + { char prefix; double scale; -} SItab[] = { - {'T', 1e-12}, /* tera */ - {'G', 1e-09}, /* giga */ - {'M', 1e-06}, /* mega */ - {'K', 1e-03}, /* kilo */ - {' ', 1e-00}, - {'m', 1e+03}, /* milli */ - {'u', 1e+06}, /* micro */ - {'n', 1e+09}, /* nano */ - {'p', 1e+12}, /* pico */ - {'f', 1e+15}, /* femto */ - {'a', 1e+18}, /* ato */ + } +SItab[] = +{ + { + 'T', 1e-12 + } + , /* tera */ + { + 'G', 1e-09 + } + , /* giga */ + { + 'M', 1e-06 + } + , /* mega */ + { + 'K', 1e-03 + } + , /* kilo */ + { + ' ', 1e-00 + } + , + { + 'm', 1e+03 + } + , /* milli */ + { + 'u', 1e+06 + } + , /* micro */ + { + 'n', 1e+09 + } + , /* nano */ + { + 'p', 1e+12 + } + , /* pico */ + { + 'f', 1e+15 + } + , /* femto */ + { + 'a', 1e+18 + } + , /* ato */ }; /* @@ -53,70 +89,75 @@ const struct { * is provided for formatting error messages only. */ void -DEFUN(hist_read_rec, (ifp, filename), FILE *ifp AND const char *filename) +DEFUN (hist_read_rec, (ifp, filename), FILE * ifp AND const char *filename) { - struct gmon_hist_hdr hdr; - bfd_vma n_lowpc, n_highpc; - int i, ncnt, profrate; - UNIT count; - - if (fread(&hdr, sizeof(hdr), 1, ifp) != 1) { - fprintf(stderr, "%s: %s: unexpected end of file\n", - whoami, filename); - done(1); - } /* if */ - - n_lowpc = (bfd_vma) get_vma(core_bfd, (bfd_byte *) hdr.low_pc); - n_highpc = (bfd_vma) get_vma(core_bfd, (bfd_byte *) hdr.high_pc); - ncnt = bfd_get_32(core_bfd, (bfd_byte *) hdr.hist_size); - profrate = bfd_get_32(core_bfd, (bfd_byte *) hdr.prof_rate); - strncpy(hist_dimension, hdr.dimen, sizeof(hdr.dimen)); - hist_dimension[sizeof(hdr.dimen)] = '\0'; - hist_dimension_abbrev = hdr.dimen_abbrev; - - if (!s_highpc) { - - /* this is the first histogram record: */ - - s_lowpc = n_lowpc; - s_highpc = n_highpc; - lowpc = (bfd_vma) n_lowpc / sizeof(UNIT); - highpc = (bfd_vma) n_highpc / sizeof(UNIT); - hist_num_bins = ncnt; - hz = profrate; - } /* if */ - - DBG(SAMPLEDEBUG, - printf("[hist_read_rec] n_lowpc 0x%lx n_highpc 0x%lx ncnt %d\n", + struct gmon_hist_hdr hdr; + bfd_vma n_lowpc, n_highpc; + int i, ncnt, profrate; + UNIT count; + + if (fread (&hdr, sizeof (hdr), 1, ifp) != 1) + { + fprintf (stderr, "%s: %s: unexpected end of file\n", + whoami, filename); + done (1); + } /* if */ + + n_lowpc = (bfd_vma) get_vma (core_bfd, (bfd_byte *) hdr.low_pc); + n_highpc = (bfd_vma) get_vma (core_bfd, (bfd_byte *) hdr.high_pc); + ncnt = bfd_get_32 (core_bfd, (bfd_byte *) hdr.hist_size); + profrate = bfd_get_32 (core_bfd, (bfd_byte *) hdr.prof_rate); + strncpy (hist_dimension, hdr.dimen, sizeof (hdr.dimen)); + hist_dimension[sizeof (hdr.dimen)] = '\0'; + hist_dimension_abbrev = hdr.dimen_abbrev; + + if (!s_highpc) + { + + /* this is the first histogram record: */ + + s_lowpc = n_lowpc; + s_highpc = n_highpc; + lowpc = (bfd_vma) n_lowpc / sizeof (UNIT); + highpc = (bfd_vma) n_highpc / sizeof (UNIT); + hist_num_bins = ncnt; + hz = profrate; + } /* if */ + + DBG (SAMPLEDEBUG, + printf ("[hist_read_rec] n_lowpc 0x%lx n_highpc 0x%lx ncnt %d\n", n_lowpc, n_highpc, ncnt); - printf("[hist_read_rec] s_lowpc 0x%lx s_highpc 0x%lx nsamples %d\n", + printf ("[hist_read_rec] s_lowpc 0x%lx s_highpc 0x%lx nsamples %d\n", s_lowpc, s_highpc, hist_num_bins); - printf("[hist_read_rec] lowpc 0x%lx highpc 0x%lx\n", + printf ("[hist_read_rec] lowpc 0x%lx highpc 0x%lx\n", lowpc, highpc)); - if (n_lowpc != s_lowpc || n_highpc != s_highpc - || ncnt != hist_num_bins || hz != profrate) + if (n_lowpc != s_lowpc || n_highpc != s_highpc + || ncnt != hist_num_bins || hz != profrate) { - fprintf(stderr, "%s: `%s' is incompatible with first gmon file\n", - whoami, filename); - done(1); - } /* if */ + fprintf (stderr, "%s: `%s' is incompatible with first gmon file\n", + whoami, filename); + done (1); + } /* 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 */ + 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(&count[0], sizeof(count), 1, ifp) != 1) { - fprintf(stderr, - "%s: %s: unexpected EOF after reading %d of %d samples\n", - whoami, filename, i, hist_num_bins); - done(1); - } /* if */ - hist_sample[i] += bfd_get_16(core_bfd, (bfd_byte*) &count[0]); - } /* for */ -} /* hist_read_rec */ + for (i = 0; i < hist_num_bins; ++i) + { + if (fread (&count[0], sizeof (count), 1, ifp) != 1) + { + fprintf (stderr, + "%s: %s: unexpected EOF after reading %d of %d samples\n", + whoami, filename, i, hist_num_bins); + done (1); + } /* if */ + hist_sample[i] += bfd_get_16 (core_bfd, (bfd_byte *) & count[0]); + } /* for */ +} /* hist_read_rec */ /* @@ -124,38 +165,40 @@ DEFUN(hist_read_rec, (ifp, filename), FILE *ifp AND const char *filename) * of OFP and is provided for formatting error-messages only. */ void -DEFUN(hist_write_hist, (ofp, filename), FILE *ofp AND const char *filename) +DEFUN (hist_write_hist, (ofp, filename), FILE * ofp AND const char *filename) { - struct gmon_hist_hdr hdr; - unsigned char tag; - UNIT count; - int i; - - /* write header: */ - - tag = GMON_TAG_TIME_HIST; - put_vma(core_bfd, s_lowpc, (bfd_byte*) hdr.low_pc); - put_vma(core_bfd, s_highpc, (bfd_byte*) hdr.high_pc); - bfd_put_32(core_bfd, hist_num_bins, (bfd_byte*) hdr.hist_size); - bfd_put_32(core_bfd, hz, (bfd_byte*) hdr.prof_rate); - strncpy(hdr.dimen, hist_dimension, sizeof(hdr.dimen)); - hdr.dimen_abbrev = hist_dimension_abbrev; - - if (fwrite(&tag, sizeof(tag), 1, ofp) != 1 - || fwrite(&hdr, sizeof(hdr), 1, ofp) != 1) - { - perror(filename); - done(1); - } /* if */ - - for (i = 0; i < hist_num_bins; ++i) { - bfd_put_16(core_bfd, hist_sample[i], (bfd_byte*) &count[0]); - if (fwrite(&count[0], sizeof(count), 1, ofp) != 1) { - perror(filename); - done(1); - } /* if */ - } /* for */ -} /* hist_write_hist */ + struct gmon_hist_hdr hdr; + unsigned char tag; + UNIT count; + int i; + + /* write header: */ + + tag = GMON_TAG_TIME_HIST; + put_vma (core_bfd, s_lowpc, (bfd_byte *) hdr.low_pc); + put_vma (core_bfd, s_highpc, (bfd_byte *) hdr.high_pc); + bfd_put_32 (core_bfd, hist_num_bins, (bfd_byte *) hdr.hist_size); + bfd_put_32 (core_bfd, hz, (bfd_byte *) hdr.prof_rate); + strncpy (hdr.dimen, hist_dimension, sizeof (hdr.dimen)); + hdr.dimen_abbrev = hist_dimension_abbrev; + + if (fwrite (&tag, sizeof (tag), 1, ofp) != 1 + || fwrite (&hdr, sizeof (hdr), 1, ofp) != 1) + { + perror (filename); + done (1); + } /* if */ + + for (i = 0; i < hist_num_bins; ++i) + { + bfd_put_16 (core_bfd, hist_sample[i], (bfd_byte *) & count[0]); + if (fwrite (&count[0], sizeof (count), 1, ofp) != 1) + { + perror (filename); + done (1); + } /* if */ + } /* for */ +} /* hist_write_hist */ /* @@ -167,28 +210,30 @@ DEFUN(hist_write_hist, (ofp, filename), FILE *ofp AND const char *filename) * next bin. */ static void -DEFUN_VOID(scale_and_align_entries) +DEFUN_VOID (scale_and_align_entries) { - Sym *sym; + Sym *sym; #if OFFSET_TO_CODE > 0 - bfd_vma bin_of_entry; - bfd_vma bin_of_code; + bfd_vma bin_of_entry; + bfd_vma bin_of_code; #endif - for (sym = symtab.base; sym < symtab.limit; sym++) { - sym->hist.scaled_addr = sym->addr / sizeof(UNIT); + for (sym = symtab.base; sym < symtab.limit; sym++) + { + sym->hist.scaled_addr = sym->addr / sizeof (UNIT); #if OFFSET_TO_CODE > 0 - bin_of_entry = (sym->hist.scaled_addr - lowpc) / hist_scale; - bin_of_code = (sym->hist.scaled_addr + UNITS_TO_CODE - lowpc) / hist_scale; - if (bin_of_entry < bin_of_code) { - DBG(SAMPLEDEBUG, - printf("[scale_and_align_entries] pushing 0x%lx to 0x%lx\n", - sym->hist.scaled_addr, sym->aligned_addr + UNITS_TO_CODE)); - sym->aligned_addr += UNITS_TO_CODE; - } /* if */ + bin_of_entry = (sym->hist.scaled_addr - lowpc) / hist_scale; + bin_of_code = (sym->hist.scaled_addr + UNITS_TO_CODE - lowpc) / hist_scale; + if (bin_of_entry < bin_of_code) + { + DBG (SAMPLEDEBUG, + printf ("[scale_and_align_entries] pushing 0x%lx to 0x%lx\n", + sym->hist.scaled_addr, sym->aligned_addr + UNITS_TO_CODE)); + sym->aligned_addr += UNITS_TO_CODE; + } /* if */ #endif /* OFFSET_TO_CODE > 0 */ - } /* for */ -} /* scale_and_align_entries */ + } /* for */ +} /* scale_and_align_entries */ /* @@ -206,18 +251,18 @@ DEFUN_VOID(scale_and_align_entries) * sample that is to be credited to the symbol which starts at * SYM_LOW_PC. * - * sym_low_pc sym_high_pc - * | | - * v v + * sym_low_pc sym_high_pc + * | | + * v v * - * +-----------------------------------------------+ - * | | - * | ->| |<- ->| |<- ->| |<- | - * | | | | | | - * +---------+ +---------+ +---------+ + * +-----------------------------------------------+ + * | | + * | ->| |<- ->| |<- ->| |<- | + * | | | | | | + * +---------+ +---------+ +---------+ * - * ^ ^ ^ ^ ^ ^ - * | | | | | | + * ^ ^ ^ ^ ^ ^ + * | | | | | | * bin_low_pc bin_high_pc bin_low_pc bin_high_pc bin_low_pc bin_high_pc * * For the VAX we assert that samples will never fall in the first two @@ -230,153 +275,176 @@ DEFUN_VOID(scale_and_align_entries) * cases, above). */ void -DEFUN_VOID(hist_assign_samples) +DEFUN_VOID (hist_assign_samples) { - bfd_vma bin_low_pc, bin_high_pc; - bfd_vma sym_low_pc, sym_high_pc; - bfd_vma overlap, addr; - int bin_count, i, j; - double time, credit; - - /* read samples and assign to symbols: */ - hist_scale = highpc - lowpc; - hist_scale /= hist_num_bins; - scale_and_align_entries(); - - /* iterate over all sample bins: */ - - for (i = 0, j = 1; i < hist_num_bins; ++i) { - bin_count = hist_sample[i]; - if (!bin_count) { - continue; - } /* if */ - bin_low_pc = lowpc + (bfd_vma)(hist_scale * i); - bin_high_pc = lowpc + (bfd_vma)(hist_scale * (i + 1)); - time = bin_count; - DBG(SAMPLEDEBUG, - printf( -"[assign_samples] bin_low_pc=0x%lx, bin_high_pc=0x%lx, bin_count=%d\n", - sizeof(UNIT) * bin_low_pc, sizeof(UNIT) * bin_high_pc, - bin_count)); - total_time += time; - - /* credit all symbols that are covered by bin I: */ - - for (j = j - 1; j < symtab.len; ++j) { - sym_low_pc = symtab.base[j].hist.scaled_addr; - sym_high_pc = symtab.base[j+1].hist.scaled_addr; - /* - * If high end of bin is below entry address, go for next - * bin: - */ - if (bin_high_pc < sym_low_pc) { - break; - } /* if */ - /* - * If low end of bin is above high end of symbol, go for - * next symbol. - */ - if (bin_low_pc >= sym_high_pc) { - continue; - } /* if */ - overlap = - MIN(bin_high_pc, sym_high_pc) - MAX(bin_low_pc, sym_low_pc); - if (overlap > 0) { - DBG(SAMPLEDEBUG, - printf( -"[assign_samples] [0x%lx,0x%lx) %s gets %f ticks %ld overlap\n", - symtab.base[j].addr, sizeof(UNIT) * sym_high_pc, - symtab.base[j].name, overlap * time / hist_scale, - overlap)); - addr = symtab.base[j].addr; - credit = overlap * time / hist_scale; - /* - * Credit symbol if it appears in INCL_FLAT or that - * table is empty and it does not appear it in - * EXCL_FLAT. - */ - if (sym_lookup(&syms[INCL_FLAT], addr) - || (syms[INCL_FLAT].len == 0 - && !sym_lookup(&syms[EXCL_FLAT], addr))) + bfd_vma bin_low_pc, bin_high_pc; + bfd_vma sym_low_pc, sym_high_pc; + bfd_vma overlap, addr; + int bin_count, i, j; + double time, credit; + + /* read samples and assign to symbols: */ + hist_scale = highpc - lowpc; + hist_scale /= hist_num_bins; + scale_and_align_entries (); + + /* iterate over all sample bins: */ + + for (i = 0, j = 1; i < hist_num_bins; ++i) + { + bin_count = hist_sample[i]; + if (!bin_count) + { + continue; + } /* if */ + bin_low_pc = lowpc + (bfd_vma) (hist_scale * i); + bin_high_pc = lowpc + (bfd_vma) (hist_scale * (i + 1)); + time = bin_count; + DBG (SAMPLEDEBUG, + printf ( + "[assign_samples] bin_low_pc=0x%lx, bin_high_pc=0x%lx, bin_count=%d\n", + sizeof (UNIT) * bin_low_pc, sizeof (UNIT) * bin_high_pc, + bin_count)); + total_time += time; + + /* credit all symbols that are covered by bin I: */ + + for (j = j - 1; j < symtab.len; ++j) + { + sym_low_pc = symtab.base[j].hist.scaled_addr; + sym_high_pc = symtab.base[j + 1].hist.scaled_addr; + /* + * If high end of bin is below entry address, go for next + * bin: + */ + if (bin_high_pc < sym_low_pc) + { + break; + } /* if */ + /* + * If low end of bin is above high end of symbol, go for + * next symbol. + */ + if (bin_low_pc >= sym_high_pc) + { + continue; + } /* if */ + overlap = + MIN (bin_high_pc, sym_high_pc) - MAX (bin_low_pc, sym_low_pc); + if (overlap > 0) + { + DBG (SAMPLEDEBUG, + printf ( + "[assign_samples] [0x%lx,0x%lx) %s gets %f ticks %ld overlap\n", + symtab.base[j].addr, sizeof (UNIT) * sym_high_pc, + symtab.base[j].name, overlap * time / hist_scale, + overlap)); + addr = symtab.base[j].addr; + credit = overlap * time / hist_scale; + /* + * Credit symbol if it appears in INCL_FLAT or that + * table is empty and it does not appear it in + * EXCL_FLAT. + */ + if (sym_lookup (&syms[INCL_FLAT], addr) + || (syms[INCL_FLAT].len == 0 + && !sym_lookup (&syms[EXCL_FLAT], addr))) { - symtab.base[j].hist.time += credit; - } else { - total_time -= credit; - } /* if */ - } /* if */ - } /* if */ - } /* for */ - DBG(SAMPLEDEBUG, printf("[assign_samples] total_time %f\n", + symtab.base[j].hist.time += credit; + } + else + { + total_time -= credit; + } /* if */ + } /* if */ + } /* if */ + } /* for */ + DBG (SAMPLEDEBUG, printf ("[assign_samples] total_time %f\n", total_time)); -} /* hist_assign_samples */ +} /* hist_assign_samples */ /* * Print header for flag histogram profile: */ static void -DEFUN(print_header, (prefix), const char prefix) +DEFUN (print_header, (prefix), const char prefix) { - char unit[64]; - - sprintf(unit, "%c%c/call", prefix, hist_dimension_abbrev); - - if (bsd_style_output) { - printf("\ngranularity: each sample hit covers %ld byte(s)", - (long) hist_scale * sizeof(UNIT)); - if (total_time > 0.0) { - printf(" for %.2f%% of %.2f %s\n\n", - 100.0/total_time, total_time/hz, hist_dimension); - } /* if */ - } else { - printf("\nEach sample counts as %g %s.\n", 1.0 / hz, hist_dimension); - } /* if */ - - if (total_time <= 0.0) { - printf(" no time accumulated\n\n"); - /* this doesn't hurt since all the numerators will be zero: */ - total_time = 1.0; - } /* if */ - - printf("%5.5s %10.10s %8.8s %8.8s %8.8s %8.8s %-8.8s\n", - "% ", "cumulative", "self ", "", "self ", "total ", ""); - printf("%5.5s %9.9s %8.8s %8.8s %8.8s %8.8s %-8.8s\n", - "time", hist_dimension, hist_dimension, "calls", unit, unit, - "name"); -} /* print_header */ + char unit[64]; + + sprintf (unit, "%c%c/call", prefix, hist_dimension_abbrev); + + if (bsd_style_output) + { + printf ("\ngranularity: each sample hit covers %ld byte(s)", + (long) hist_scale * sizeof (UNIT)); + if (total_time > 0.0) + { + printf (" for %.2f%% of %.2f %s\n\n", + 100.0 / total_time, total_time / hz, hist_dimension); + } /* if */ + } + else + { + printf ("\nEach sample counts as %g %s.\n", 1.0 / hz, hist_dimension); + } /* if */ + + if (total_time <= 0.0) + { + printf (" no time accumulated\n\n"); + /* this doesn't hurt since all the numerators will be zero: */ + total_time = 1.0; + } /* if */ + + printf ("%5.5s %10.10s %8.8s %8.8s %8.8s %8.8s %-8.8s\n", + "% ", "cumulative", "self ", "", "self ", "total ", ""); + printf ("%5.5s %9.9s %8.8s %8.8s %8.8s %8.8s %-8.8s\n", + "time", hist_dimension, hist_dimension, "calls", unit, unit, + "name"); +} /* print_header */ static void -DEFUN(print_line, (sym, scale), Sym *sym AND double scale) +DEFUN (print_line, (sym, scale), Sym * sym AND double scale) { - if (ignore_zeros && sym->ncalls == 0 && sym->hist.time == 0) { - return; - } /* if */ - - accum_time += sym->hist.time; - if (bsd_style_output) { - printf("%5.1f %10.2f %8.2f", - total_time > 0.0 ? 100 * sym->hist.time / total_time : 0.0, - accum_time / hz, sym->hist.time / hz); - } else { - printf("%6.2f %9.2f %8.2f", - total_time > 0.0 ? 100 * sym->hist.time / total_time : 0.0, - accum_time / hz, sym->hist.time / hz); - } /* if */ - if (sym->ncalls) { - printf(" %8d %8.2f %8.2f ", - sym->ncalls, scale*sym->hist.time/hz/sym->ncalls, - scale*(sym->hist.time + sym->cg.child_time)/hz/sym->ncalls); - } else { - printf(" %8.8s %8.8s %8.8s ", "", "", ""); - } /* if */ - if (bsd_style_output) { - print_name(sym); - } else { - print_name_only(sym); - } /* if */ - printf("\n"); -} /* print_line */ + if (ignore_zeros && sym->ncalls == 0 && sym->hist.time == 0) + { + return; + } /* if */ + + accum_time += sym->hist.time; + if (bsd_style_output) + { + printf ("%5.1f %10.2f %8.2f", + total_time > 0.0 ? 100 * sym->hist.time / total_time : 0.0, + accum_time / hz, sym->hist.time / hz); + } + else + { + printf ("%6.2f %9.2f %8.2f", + total_time > 0.0 ? 100 * sym->hist.time / total_time : 0.0, + accum_time / hz, sym->hist.time / hz); + } /* if */ + if (sym->ncalls) + { + printf (" %8d %8.2f %8.2f ", + sym->ncalls, scale * sym->hist.time / hz / sym->ncalls, + scale * (sym->hist.time + sym->cg.child_time) / hz / sym->ncalls); + } + else + { + printf (" %8.8s %8.8s %8.8s ", "", "", ""); + } /* if */ + if (bsd_style_output) + { + print_name (sym); + } + else + { + print_name_only (sym); + } /* if */ + printf ("\n"); +} /* print_line */ /* @@ -385,123 +453,144 @@ DEFUN(print_line, (sym, scale), Sym *sym AND double scale) * lexicographic order of the function names. */ static int -DEFUN(cmp_time, (lp, rp), const PTR lp AND const PTR rp) +DEFUN (cmp_time, (lp, rp), const PTR lp AND const PTR rp) { - const Sym *left = *(const Sym **)lp; - const Sym *right = *(const Sym **)rp; - double time_diff; - long call_diff; - - time_diff = right->hist.time - left->hist.time; - if (time_diff > 0.0) { - return 1; - } /* if */ - if (time_diff < 0.0) { - return -1; - } /* if */ - - call_diff = right->ncalls - left->ncalls; - if (call_diff > 0) { - return 1; - } /* if */ - if (call_diff < 0) { - return -1; - } /* if */ - - return strcmp(left->name, right->name); -} /* cmp_time */ + const Sym *left = *(const Sym **) lp; + const Sym *right = *(const Sym **) rp; + double time_diff; + long call_diff; + + time_diff = right->hist.time - left->hist.time; + if (time_diff > 0.0) + { + return 1; + } /* if */ + if (time_diff < 0.0) + { + return -1; + } /* if */ + + call_diff = right->ncalls - left->ncalls; + if (call_diff > 0) + { + return 1; + } /* if */ + if (call_diff < 0) + { + return -1; + } /* if */ + + return strcmp (left->name, right->name); +} /* cmp_time */ /* * Print the flat histogram profile. */ void -DEFUN_VOID(hist_print) +DEFUN_VOID (hist_print) { - Sym **time_sorted_syms, *top_dog, *sym; - int index, log_scale; - double top_time, time; - bfd_vma addr; - - if (first_output) { - first_output = FALSE; - } else { - printf("\f\n"); - } /* if */ - - accum_time = 0.0; - if (bsd_style_output) { - if (print_descriptions) { - printf("\n\n\nflat profile:\n"); - flat_blurb(stdout); - } /* if */ - } else { - printf ("Flat profile:\n"); - } /* if */ - /* - * Sort the symbol table by time (call-count and name as secondary - * and tertiary keys): - */ - time_sorted_syms = (Sym**)xmalloc(symtab.len * sizeof(Sym*)); - for (index = 0; index < symtab.len; ++index) { - time_sorted_syms[index] = &symtab.base[index]; - } /* for */ - qsort(time_sorted_syms, symtab.len, sizeof(Sym *), cmp_time); - - if (bsd_style_output) { - log_scale = 5; /* milli-seconds is BSD-default */ - } else { - /* - * Search for symbol with highest per-call execution time and - * scale accordingly: - */ - log_scale = 0; - top_dog = 0; - top_time = 0.0; - for (index = 0; index < symtab.len; ++index) { - sym = time_sorted_syms[index]; - if (sym->ncalls) { - time = (sym->hist.time + sym->cg.child_time) / sym->ncalls; - if (time > top_time) { - top_dog = sym; - top_time = time; - } /* if */ - } /* if */ - } /* for */ - if (top_dog && top_dog->ncalls && top_time > 0.0) { - top_time /= hz; - while (SItab[log_scale].scale * top_time < 1000.0 - && log_scale < sizeof(SItab)/sizeof(SItab[0]) - 1) + Sym **time_sorted_syms, *top_dog, *sym; + int index, log_scale; + double top_time, time; + bfd_vma addr; + + if (first_output) + { + first_output = FALSE; + } + else + { + printf ("\f\n"); + } /* if */ + + accum_time = 0.0; + if (bsd_style_output) + { + if (print_descriptions) + { + printf ("\n\n\nflat profile:\n"); + flat_blurb (stdout); + } /* if */ + } + else + { + printf ("Flat profile:\n"); + } /* if */ + /* + * Sort the symbol table by time (call-count and name as secondary + * and tertiary keys): + */ + time_sorted_syms = (Sym **) xmalloc (symtab.len * sizeof (Sym *)); + for (index = 0; index < symtab.len; ++index) + { + time_sorted_syms[index] = &symtab.base[index]; + } /* for */ + qsort (time_sorted_syms, symtab.len, sizeof (Sym *), cmp_time); + + if (bsd_style_output) + { + log_scale = 5; /* milli-seconds is BSD-default */ + } + else + { + /* + * Search for symbol with highest per-call execution time and + * scale accordingly: + */ + log_scale = 0; + top_dog = 0; + top_time = 0.0; + for (index = 0; index < symtab.len; ++index) + { + sym = time_sorted_syms[index]; + if (sym->ncalls) + { + time = (sym->hist.time + sym->cg.child_time) / sym->ncalls; + if (time > top_time) + { + top_dog = sym; + top_time = time; + } /* if */ + } /* if */ + } /* for */ + if (top_dog && top_dog->ncalls && top_time > 0.0) + { + top_time /= hz; + while (SItab[log_scale].scale * top_time < 1000.0 + && log_scale < sizeof (SItab) / sizeof (SItab[0]) - 1) { - ++log_scale; - } /* while */ - } /* if */ - } /* if */ - - /* - * For now, the dimension is always seconds. In the future, we - * may also want to support other (pseudo-)dimensions (such as - * I-cache misses etc.). - */ - print_header(SItab[log_scale].prefix); - for (index = 0; index < symtab.len; ++index) { - addr = time_sorted_syms[index]->addr; - /* - * Print symbol if its in INCL_FLAT table or that table - * is empty and the symbol is not in EXCL_FLAT. - */ - if (sym_lookup(&syms[INCL_FLAT], addr) - || (syms[INCL_FLAT].len == 0 - && !sym_lookup(&syms[EXCL_FLAT], addr))) + ++log_scale; + } /* while */ + } /* if */ + } /* if */ + + /* + * For now, the dimension is always seconds. In the future, we + * may also want to support other (pseudo-)dimensions (such as + * I-cache misses etc.). + */ + print_header (SItab[log_scale].prefix); + for (index = 0; index < symtab.len; ++index) + { + addr = time_sorted_syms[index]->addr; + /* + * Print symbol if its in INCL_FLAT table or that table + * is empty and the symbol is not in EXCL_FLAT. + */ + if (sym_lookup (&syms[INCL_FLAT], addr) + || (syms[INCL_FLAT].len == 0 + && !sym_lookup (&syms[EXCL_FLAT], addr))) { - print_line(time_sorted_syms[index], SItab[log_scale].scale); - } /* if */ - } /* for */ - free(time_sorted_syms); + print_line (time_sorted_syms[index], SItab[log_scale].scale); + } /* if */ + } /* for */ + free (time_sorted_syms); - if (print_descriptions && !bsd_style_output) { - flat_blurb(stdout); - } /* if */ -} /* hist_print */ + if (print_descriptions && !bsd_style_output) + { + flat_blurb (stdout); + } /* if */ +} /* hist_print */ - /*** end of hist.c ***/ +/*** end of hist.c ***/ |