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Some programs like RTOS firmware may have a large number of symbols. The profile information in the profile data file includes histogram records, which capture low PC and high PC of program execution. If all histogram records come in the profile data file before any call-graph records and basic-block records, we can look up only the line numbers within low PC and high PC in histogram records, which reduces processing time for such a firmware from ~2 minutes to ~2 seconds. Add symbol table access function, get_symtab, get_symtab_direct and set_symtab to delay loading the symbol table until its first use. * aarch64.c (aarch64_find_call): Call get_symtab to get the symbol table pointer * alpha.c (alpha_find_call): Likewise. * basic_blocks.c (bb_read_rec): Likewise. (bb_write_blocks): Likewise. (print_exec_counts): Likewise. (print_annotated_source): Likewise. * call_graph.c (cg_tally): Likewise. (cg_write_arcs): Likewise. * cg_arcs.c (cycle_link): Likewise. (propagate_flags): Likewise. (cg_assemble): Likewise. * cg_print.c (cg_print): Likewise. (cg_print_index): Likewise. (cg_print_function_ordering): Likewise. * corefile.c: Include "gmon_io.h". (core_create_syms_from): Call get_symtab_direct to get the symbol table pointer. (core_create_function_syms): Likewise. (core_create_line_syms): Likewise. If all histogram records come in the profile data file before any call-graph records and basic-block records, we can look up only the line numbers within low PC and high PC in histogram records. * gmon_io.c (gmon_histograms_first): New. (gmon_out_read): Set gmon_histograms_first to true if all histogram records come first. (gmon_out_write): Call get_symtab to get the symbol table pointer. * hist.c (scale_and_align_entries): Likewise. (hist_assign_samples_1): Likewise. (hist_print): Likewise. * i386.c (i386_find_call): Likewise. * mips.c (mips_find_call): Likewise. * sparc.c (sparc_find_call): Likewise. * sym_ids.c (sym_id_parse): Likewise. * vax.c (vax_find_call): Likewise. * gmon_io.h (gmon_histograms_first): New. * gprof.c (man): Don't create profile info. (symtab_init): New. * gprof.h (symtab_init): New. * symtab.c (symtab): Changed to static. (get_symtab_direct): New. (get_symtab): Likewise. (set_symtab): Likewise. * symtab.h (symtab): Removed. (get_symtab_direct): New. (get_symtab): Likewise. (set_symtab): Likewise. Signed-off-by: Richard Allen <rsaxvc@gmail.com> Co-Authored-By: H.J. Lu <hjl.tools@gmail.com>
45 lines
1.6 KiB
C
45 lines
1.6 KiB
C
/* gmon_io.h
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Copyright (C) 2000-2025 Free Software Foundation, Inc.
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This file is part of GNU Binutils.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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#ifndef gmon_io_h
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#define gmon_io_h
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#define INPUT_HISTOGRAM (1 << 0)
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#define INPUT_CALL_GRAPH (1 << 1)
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#define INPUT_BB_COUNTS (1 << 2)
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extern int gmon_input; /* What input did we see? */
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extern int gmon_file_version; /* File version are we dealing with. */
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extern bool gmon_histograms_first;
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extern int gmon_io_read_vma (FILE *ifp, bfd_vma *valp);
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extern int gmon_io_read_32 (FILE *ifp, unsigned int *valp);
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extern int gmon_io_read (FILE *ifp, char *buf, size_t n);
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extern int gmon_io_write_vma (FILE *ifp, bfd_vma val);
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extern int gmon_io_write_32 (FILE *ifp, unsigned int val);
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extern int gmon_io_write_8 (FILE *ifp, unsigned int val);
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extern int gmon_io_write (FILE *ifp, char *buf, size_t n);
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extern void gmon_out_read (const char *);
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extern void gmon_out_write (const char *);
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#endif /* gmon_io_h */
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