X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=gprof%2Fgmon_io.c;h=71ff604433b7d81b30fcaffbfcf3f70e8a28454a;hb=13a590ca65f744c8fa55d6e0748cb12f443493f0;hp=d7618894ce8a5bc275e1459951a2724d8c04fe94;hpb=0eee5820aa0f68b2283b40f5a3fb09aefcfb1575;p=deliverable%2Fbinutils-gdb.git diff --git a/gprof/gmon_io.c b/gprof/gmon_io.c index d7618894ce..71ff604433 100644 --- a/gprof/gmon_io.c +++ b/gprof/gmon_io.c @@ -1,12 +1,12 @@ /* gmon_io.c - Input and output from/to gmon.out files. - Copyright 2000, 2001 Free Software Foundation, Inc. + Copyright (C) 1999-2017 Free Software Foundation, Inc. This file is part of GNU Binutils. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or + the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, @@ -16,56 +16,90 @@ You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA - 02111-1307, USA. */ + Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA + 02110-1301, USA. */ +#include "gprof.h" +#include "binary-io.h" +#include "search_list.h" +#include "source.h" +#include "symtab.h" #include "cg_arcs.h" #include "basic_blocks.h" -#include "bfd.h" #include "corefile.h" #include "call_graph.h" #include "gmon_io.h" #include "gmon_out.h" #include "gmon.h" /* Fetch header for old format. */ -#include "gprof.h" #include "hertz.h" #include "hist.h" #include "libiberty.h" +enum gmon_ptr_size { + ptr_32bit, + ptr_64bit +}; + +enum gmon_ptr_signedness { + ptr_signed, + ptr_unsigned +}; + +static enum gmon_ptr_size gmon_get_ptr_size (void); +static enum gmon_ptr_signedness gmon_get_ptr_signedness (void); + +#ifdef BFD_HOST_U_64_BIT +static int gmon_io_read_64 (FILE *, BFD_HOST_U_64_BIT *); +static int gmon_io_write_64 (FILE *, BFD_HOST_U_64_BIT); +#endif +static int gmon_read_raw_arc + (FILE *, bfd_vma *, bfd_vma *, unsigned long *); +static int gmon_write_raw_arc + (FILE *, bfd_vma, bfd_vma, unsigned long); + int gmon_input = 0; int gmon_file_version = 0; /* 0 == old (non-versioned) file format. */ -int -DEFUN (gmon_io_read_vma, (ifp, valp), FILE * ifp AND bfd_vma *valp) +static enum gmon_ptr_size +gmon_get_ptr_size (void) { - char buf[8]; - bfd_vma val; + int size; - switch (GMON_PTR_SIZE) + /* Pick best size for pointers. Start with the ELF size, and if not + elf go with the architecture's address size. */ + size = bfd_get_arch_size (core_bfd); + if (size == -1) + size = bfd_arch_bits_per_address (core_bfd); + + switch (size) { - case 4: - if (fread (buf, 1, 4, ifp) != 4) - return 1; - val = bfd_get_32 (core_bfd, buf); - break; + case 32: + return ptr_32bit; - case 8: - if (fread (buf, 1, 8, ifp) != 8) - return 1; - val = bfd_get_64 (core_bfd, buf); - break; + case 64: + return ptr_64bit; default: - fprintf (stderr, _("%s: GMON_PTR_SIZE has unexpected value of %u\n"), - whoami, GMON_PTR_SIZE); + fprintf (stderr, _("%s: address size has unexpected value of %u\n"), + whoami, size); done (1); } - *valp = val; - return 0; +} + +static enum gmon_ptr_signedness +gmon_get_ptr_signedness (void) +{ + int sext; + + /* Figure out whether to sign extend. If BFD doesn't know, assume no. */ + sext = bfd_get_sign_extend_vma (core_bfd); + if (sext == -1) + return ptr_unsigned; + return (sext ? ptr_signed : ptr_unsigned); } int -DEFUN (gmon_io_read_32, (ifp, valp), FILE * ifp AND unsigned int *valp) +gmon_io_read_32 (FILE *ifp, unsigned int *valp) { char buf[4]; @@ -75,54 +109,109 @@ DEFUN (gmon_io_read_32, (ifp, valp), FILE * ifp AND unsigned int *valp) return 0; } -int -DEFUN (gmon_io_read, (ifp, valp), FILE * ifp AND char *buf AND size_t n) +#ifdef BFD_HOST_U_64_BIT +static int +gmon_io_read_64 (FILE *ifp, BFD_HOST_U_64_BIT *valp) { - if (fread (buf, 1, n, ifp) != n) + char buf[8]; + + if (fread (buf, 1, 8, ifp) != 8) return 1; + *valp = bfd_get_64 (core_bfd, buf); return 0; } +#endif int -DEFUN (gmon_io_write_vma, (ofp, valp), FILE * ofp AND bfd_vma val) +gmon_io_read_vma (FILE *ifp, bfd_vma *valp) { - char buf[8]; + unsigned int val32; +#ifdef BFD_HOST_U_64_BIT + BFD_HOST_U_64_BIT val64; +#endif - switch (GMON_PTR_SIZE) + switch (gmon_get_ptr_size ()) { - case 4: - bfd_put_32 (core_bfd, val, buf); - if (fwrite (buf, 1, 4, ofp) != 4) + case ptr_32bit: + if (gmon_io_read_32 (ifp, &val32)) return 1; + if (gmon_get_ptr_signedness () == ptr_signed) + *valp = (int) val32; + else + *valp = val32; break; - case 8: - bfd_put_64 (core_bfd, val, buf); - if (fwrite (buf, 1, 8, ofp) != 8) +#ifdef BFD_HOST_U_64_BIT + case ptr_64bit: + if (gmon_io_read_64 (ifp, &val64)) return 1; +#ifdef BFD_HOST_64_BIT + if (gmon_get_ptr_signedness () == ptr_signed) + *valp = (BFD_HOST_64_BIT) val64; + else +#endif + *valp = val64; break; - - default: - fprintf (stderr, _("%s: GMON_PTR_SIZE has unexpected value of %u\n"), - whoami, GMON_PTR_SIZE); - done (1); +#endif } return 0; } int -DEFUN (gmon_io_write_32, (ofp, valp), FILE * ofp AND unsigned int val) +gmon_io_read (FILE *ifp, char *buf, size_t n) +{ + if (fread (buf, 1, n, ifp) != n) + return 1; + return 0; +} + +int +gmon_io_write_32 (FILE *ofp, unsigned int val) { char buf[4]; - bfd_put_32 (core_bfd, val, buf); + bfd_put_32 (core_bfd, (bfd_vma) val, buf); if (fwrite (buf, 1, 4, ofp) != 4) return 1; return 0; } +#ifdef BFD_HOST_U_64_BIT +static int +gmon_io_write_64 (FILE *ofp, BFD_HOST_U_64_BIT val) +{ + char buf[8]; + + bfd_put_64 (core_bfd, (bfd_vma) val, buf); + if (fwrite (buf, 1, 8, ofp) != 8) + return 1; + return 0; +} +#endif + int -DEFUN (gmon_io_write_8, (ofp, valp), FILE * ofp AND unsigned char val) +gmon_io_write_vma (FILE *ofp, bfd_vma val) +{ + + switch (gmon_get_ptr_size ()) + { + case ptr_32bit: + if (gmon_io_write_32 (ofp, (unsigned int) val)) + return 1; + break; + +#ifdef BFD_HOST_U_64_BIT + case ptr_64bit: + if (gmon_io_write_64 (ofp, (BFD_HOST_U_64_BIT) val)) + return 1; + break; +#endif + } + return 0; +} + +int +gmon_io_write_8 (FILE *ofp, unsigned int val) { char buf[1]; @@ -133,50 +222,74 @@ DEFUN (gmon_io_write_8, (ofp, valp), FILE * ofp AND unsigned char val) } int -DEFUN (gmon_io_write, (ofp, valp), FILE * ofp AND char *buf AND size_t n) +gmon_io_write (FILE *ofp, char *buf, size_t n) { if (fwrite (buf, 1, n, ofp) != n) return 1; return 0; } -/* get_vma and put_vma are for backwards compatibility only */ -static bfd_vma -DEFUN (get_vma, (abfd, addr), bfd * abfd AND bfd_byte * addr) +static int +gmon_read_raw_arc (FILE *ifp, bfd_vma *fpc, bfd_vma *spc, unsigned long *cnt) { - switch (sizeof (char*)) +#ifdef BFD_HOST_U_64_BIT + BFD_HOST_U_64_BIT cnt64; +#endif + unsigned int cnt32; + + if (gmon_io_read_vma (ifp, fpc) + || gmon_io_read_vma (ifp, spc)) + return 1; + + switch (gmon_get_ptr_size ()) { - case 4: - return bfd_get_32 (abfd, addr); - case 8: - return bfd_get_64 (abfd, addr); + case ptr_32bit: + if (gmon_io_read_32 (ifp, &cnt32)) + return 1; + *cnt = cnt32; + break; + +#ifdef BFD_HOST_U_64_BIT + case ptr_64bit: + if (gmon_io_read_64 (ifp, &cnt64)) + return 1; + *cnt = cnt64; + break; +#endif + default: - fprintf (stderr, _("%s: bfd_vma has unexpected size of %ld bytes\n"), - whoami, (long) sizeof (char*)); - done (1); + return 1; } + return 0; } -static void -DEFUN (put_vma, (abfd, val, addr), bfd * abfd AND bfd_vma val AND bfd_byte * addr) +static int +gmon_write_raw_arc (FILE *ofp, bfd_vma fpc, bfd_vma spc, unsigned long cnt) { - switch (sizeof (char*)) + + if (gmon_io_write_vma (ofp, fpc) + || gmon_io_write_vma (ofp, spc)) + return 1; + + switch (gmon_get_ptr_size ()) { - case 4: - bfd_put_32 (abfd, val, addr); + case ptr_32bit: + if (gmon_io_write_32 (ofp, (unsigned int) cnt)) + return 1; break; - case 8: - bfd_put_64 (abfd, val, addr); + +#ifdef BFD_HOST_U_64_BIT + case ptr_64bit: + if (gmon_io_write_64 (ofp, (BFD_HOST_U_64_BIT) cnt)) + return 1; break; - default: - fprintf (stderr, _("%s: bfd_vma has unexpected size of %ld bytes\n"), - whoami, (long) sizeof (char*)); - done (1); +#endif } + return 0; } void -DEFUN (gmon_out_read, (filename), const char *filename) +gmon_out_read (const char *filename) { FILE *ifp; struct gmon_hdr ghdr; @@ -187,9 +300,7 @@ DEFUN (gmon_out_read, (filename), const char *filename) if (strcmp (filename, "-") == 0) { ifp = stdin; -#ifdef SET_BINARY SET_BINARY (fileno (stdin)); -#endif } else { @@ -269,16 +380,16 @@ DEFUN (gmon_out_read, (filename), const char *filename) { bfd_vma low_pc; bfd_vma high_pc; - int ncnt; + unsigned int ncnt; }; - int i, samp_bytes, header_size; + unsigned int i; + int samp_bytes, header_size = 0; unsigned long 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; + unsigned int version; + unsigned int hist_num_bins; /* Information from a gmon.out file is in two parts: an array of sampling hits within pc ranges, and the arcs. */ @@ -293,29 +404,33 @@ DEFUN (gmon_out_read, (filename), const char *filename) done (1); } - if (fread (&raw, 1, sizeof (struct raw_phdr), ifp) - != sizeof (struct raw_phdr)) + /* The beginning of the old BSD header and the 4.4BSD header + are the same: lowpc, highpc, ncnt */ + if (gmon_io_read_vma (ifp, &tmp.low_pc) + || gmon_io_read_vma (ifp, &tmp.high_pc) + || gmon_io_read_32 (ifp, &tmp.ncnt)) { - fprintf (stderr, _("%s: file too short to be a gmon file\n"), + bad_gmon_file: + fprintf (stderr, _("%s: file too short to be a gmon file\n"), filename); done (1); } - 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]); + /* Check to see if this a 4.4BSD-style header. */ + if (gmon_io_read_32 (ifp, &version)) + goto bad_gmon_file; - if (bfd_get_32 (core_bfd, (bfd_byte *) &raw.version[0]) - == GMONVERSION) + if (version == GMONVERSION) { - int profrate; + unsigned int profrate; /* 4.4BSD format header. */ - profrate = bfd_get_32 (core_bfd, (bfd_byte *) &raw.profrate[0]); + if (gmon_io_read_32 (ifp, &profrate)) + goto bad_gmon_file; - if (!s_highpc) + if (!histograms) hz = profrate; - else if (hz != profrate) + else if (hz != (int) profrate) { fprintf (stderr, _("%s: profiling rate incompatible with first gmon file\n"), @@ -323,7 +438,16 @@ DEFUN (gmon_out_read, (filename), const char *filename) done (1); } - header_size = sizeof (struct raw_phdr); + switch (gmon_get_ptr_size ()) + { + case ptr_32bit: + header_size = GMON_HDRSIZE_BSD44_32; + break; + + case ptr_64bit: + header_size = GMON_HDRSIZE_BSD44_64; + break; + } } else { @@ -335,44 +459,59 @@ DEFUN (gmon_out_read, (filename), const char *filename) done (1); } - if (fseek (ifp, sizeof (struct old_raw_phdr), SEEK_SET) < 0) + switch (gmon_get_ptr_size ()) { - perror (filename); - done (1); + case ptr_32bit: + header_size = GMON_HDRSIZE_OLDBSD_32; + break; + + case ptr_64bit: + header_size = GMON_HDRSIZE_OLDBSD_64; + break; } + } - header_size = sizeof (struct old_raw_phdr); + /* Position the file to after the header. */ + if (fseek (ifp, header_size, SEEK_SET) < 0) + { + perror (filename); + done (1); } - if (s_highpc && (tmp.low_pc != h.low_pc - || tmp.high_pc != h.high_pc || tmp.ncnt != h.ncnt)) + samp_bytes = tmp.ncnt - header_size; + hist_num_bins = samp_bytes / sizeof (UNIT); + if (histograms && (tmp.low_pc != histograms->lowpc + || tmp.high_pc != histograms->highpc + || (hist_num_bins != histograms->num_bins))) { fprintf (stderr, _("%s: incompatible with first gmon file\n"), filename); done (1); } - 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 - header_size; - hist_num_bins = samp_bytes / sizeof (UNIT); + if (!histograms) + { + num_histograms = 1; + histograms = (struct histogram *) xmalloc (sizeof (struct histogram)); + histograms->lowpc = tmp.low_pc; + histograms->highpc = tmp.high_pc; + histograms->num_bins = hist_num_bins; + hist_scale = (double)((tmp.high_pc - tmp.low_pc) / sizeof (UNIT)) + / hist_num_bins; + histograms->sample = (int *) xmalloc (hist_num_bins * sizeof (int)); + memset (histograms->sample, 0, + hist_num_bins * sizeof (int)); + } DBG (SAMPLEDEBUG, printf ("[gmon_out_read] lowpc 0x%lx highpc 0x%lx ncnt %d\n", - (unsigned long) h.low_pc, (unsigned long) h.high_pc, - h.ncnt); - printf ("[gmon_out_read] s_lowpc 0x%lx s_highpc 0x%lx\n", - (unsigned long) s_lowpc, (unsigned long) s_highpc); - printf ("[gmon_out_read] lowpc 0x%lx highpc 0x%lx\n", - (unsigned long) lowpc, (unsigned long) highpc); + (unsigned long) tmp.low_pc, (unsigned long) tmp.high_pc, + tmp.ncnt); printf ("[gmon_out_read] samp_bytes %d hist_num_bins %d\n", samp_bytes, hist_num_bins)); /* Make sure that we have sensible values. */ - if (samp_bytes < 0 || lowpc > highpc) + if (samp_bytes < 0 || histograms->lowpc > histograms->highpc) { fprintf (stderr, _("%s: file '%s' does not appear to be in gmon.out format\n"), @@ -383,14 +522,6 @@ DEFUN (gmon_out_read, (filename), const char *filename) if (hist_num_bins) ++nhist; - 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])); - } - for (i = 0; i < hist_num_bins; ++i) { if (fread (raw_bin_count, sizeof (raw_bin_count), 1, ifp) != 1) @@ -401,17 +532,15 @@ DEFUN (gmon_out_read, (filename), const char *filename) done (1); } - hist_sample[i] += bfd_get_16 (core_bfd, (bfd_byte *) raw_bin_count); + histograms->sample[i] + += bfd_get_16 (core_bfd, (bfd_byte *) raw_bin_count); } /* The rest of the file consists of a bunch of tuples. */ - while (fread (&raw_arc, sizeof (raw_arc), 1, ifp) == 1) + while (gmon_read_raw_arc (ifp, &from_pc, &self_pc, &count) == 0) { ++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 %lu\n", @@ -421,8 +550,6 @@ DEFUN (gmon_out_read, (filename), const char *filename) cg_tally (from_pc, self_pc, count); } - fclose (ifp); - if (hz == HZ_WRONG) { /* How many ticks per second? If we can't tell, report @@ -443,23 +570,29 @@ DEFUN (gmon_out_read, (filename), const char *filename) done (1); } + if (ifp != stdin) + fclose (ifp); + 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"); + printf (nhist == 1 ? + _("\t%d histogram record\n") : + _("\t%d histogram records\n"), nhist); + printf (narcs == 1 ? + _("\t%d call-graph record\n") : + _("\t%d call-graph records\n"), narcs); + printf (nbbs == 1 ? + _("\t%d basic-block count record\n") : + _("\t%d basic-block count records\n"), nbbs); first_output = FALSE; } } void -DEFUN (gmon_out_write, (filename), const char *filename) +gmon_out_write (const char *filename) { FILE *ofp; struct gmon_hdr ghdr; @@ -476,7 +609,7 @@ DEFUN (gmon_out_write, (filename), const char *filename) /* Write gmon header. */ memcpy (&ghdr.cookie[0], GMON_MAGIC, 4); - bfd_put_32 (core_bfd, GMON_VERSION, (bfd_byte *) ghdr.version); + bfd_put_32 (core_bfd, (bfd_vma) GMON_VERSION, (bfd_byte *) ghdr.version); if (fwrite (&ghdr, sizeof (ghdr), 1, ofp) != 1) { @@ -498,47 +631,91 @@ DEFUN (gmon_out_write, (filename), const char *filename) } else if (file_format == FF_BSD || file_format == FF_BSD44) { - struct raw_arc raw_arc; UNIT raw_bin_count; - struct raw_phdr h; - int i; + unsigned int i, hdrsize; + unsigned padsize; + char pad[3*4]; Arc *arc; Sym *sym; - memset (&h, 0, sizeof h); - put_vma (core_bfd, s_lowpc, (bfd_byte *) &h.low_pc); - put_vma (core_bfd, s_highpc, (bfd_byte *) &h.high_pc); - bfd_put_32 (core_bfd, - hist_num_bins * sizeof (UNIT) + sizeof (struct raw_phdr), - (bfd_byte *) &h.ncnt); + memset (pad, 0, sizeof (pad)); - /* Write header. Use new style BSD format is explicitly - specified, or if the profiling rate is non-standard; - otherwise, use the old BSD format. */ + hdrsize = 0; + /* Decide how large the header will be. Use the 4.4BSD format + header if explicitly specified, or if the profiling rate is + non-standard. Otherwise, use the old BSD format. */ if (file_format == FF_BSD44 - || hz != hertz ()) + || hz != hertz()) { - bfd_put_32 (core_bfd, GMONVERSION, (bfd_byte *) &h.version); - bfd_put_32 (core_bfd, hz, (bfd_byte *) &h.profrate); - if (fwrite (&h, sizeof (struct raw_phdr), 1, ofp) != 1) + padsize = 3*4; + switch (gmon_get_ptr_size ()) { - perror (filename); - done (1); + case ptr_32bit: + hdrsize = GMON_HDRSIZE_BSD44_32; + break; + + case ptr_64bit: + hdrsize = GMON_HDRSIZE_BSD44_64; + break; } } else { - if (fwrite (&h, sizeof (struct old_raw_phdr), 1, ofp) != 1) + padsize = 0; + switch (gmon_get_ptr_size ()) + { + case ptr_32bit: + hdrsize = GMON_HDRSIZE_OLDBSD_32; + break; + + case ptr_64bit: + hdrsize = GMON_HDRSIZE_OLDBSD_64; + /* FIXME: Checking host compiler defines here means that we can't + use a cross gprof alpha OSF. */ +#if defined(__alpha__) && defined (__osf__) + padsize = 4; +#endif + break; + } + } + + /* Write the parts of the headers that are common to both the + old BSD and 4.4BSD formats. */ + if (gmon_io_write_vma (ofp, histograms->lowpc) + || gmon_io_write_vma (ofp, histograms->highpc) + || gmon_io_write_32 (ofp, histograms->num_bins + * sizeof (UNIT) + hdrsize)) + { + perror (filename); + done (1); + } + + /* Write out the 4.4BSD header bits, if that's what we're using. */ + if (file_format == FF_BSD44 + || hz != hertz()) + { + if (gmon_io_write_32 (ofp, GMONVERSION) + || gmon_io_write_32 (ofp, (unsigned int) hz)) { perror (filename); done (1); } } + /* Now write out any necessary padding after the meaningful + header bits. */ + if (padsize != 0 + && fwrite (pad, 1, padsize, ofp) != padsize) + { + perror (filename); + done (1); + } + /* Dump the samples. */ - for (i = 0; i < hist_num_bins; ++i) + for (i = 0; i < histograms->num_bins; ++i) { - bfd_put_16 (core_bfd, hist_sample[i], (bfd_byte *) & raw_bin_count[0]); + bfd_put_16 (core_bfd, (bfd_vma) histograms->sample[i], + (bfd_byte *) &raw_bin_count[0]); if (fwrite (&raw_bin_count[0], sizeof (raw_bin_count), 1, ofp) != 1) { perror (filename); @@ -551,12 +728,8 @@ DEFUN (gmon_out_write, (filename), const char *filename) { 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) + if (gmon_write_raw_arc (ofp, arc->parent->addr, + arc->child->addr, arc->count)) { perror (filename); done (1);