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Commit FS#9170 by Dave Hooper. Adds support for profiling on ARM, and fixes various issues with compiling profile builds. Also, note that profile_reader.pl syntax has changed.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18142 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Michael Giacomelli 2008-07-28 22:43:41 +00:00
parent c323d533c2
commit 52bdcbae85
7 changed files with 52 additions and 28 deletions
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4
apps/codecs.c
View file

@ -138,8 +138,8 @@ struct codec_api ci = {
#ifdef RB_PROFILE #ifdef RB_PROFILE
profile_thread, profile_thread,
profstop, profstop,
profile_func_enter, __cyg_profile_func_enter,
profile_func_exit, __cyg_profile_func_exit,
#endif #endif
#if defined(HAVE_RECORDING) && !defined(SIMULATOR) #if defined(HAVE_RECORDING) && !defined(SIMULATOR)

2
apps/codecs/SOURCES
View file

@ -7,7 +7,9 @@ wav.c
a52.c a52.c
mpc.c mpc.c
wavpack.c wavpack.c
#ifndef RB_PROFILE
alac.c alac.c
#endif
wma.c wma.c
#if MEMORYSIZE > 1 #if MEMORYSIZE > 1
aac.c aac.c

4
apps/plugin.c
View file

@ -335,8 +335,8 @@ static const struct plugin_api rockbox_api = {
#ifdef RB_PROFILE #ifdef RB_PROFILE
profile_thread, profile_thread,
profstop, profstop,
profile_func_enter, __cyg_profile_func_enter,
profile_func_exit, __cyg_profile_func_exit,
#endif #endif
#ifdef SIMULATOR #ifdef SIMULATOR

4
apps/plugins/SUBDIRS
View file

@ -33,14 +33,18 @@ pacbox
/* For all the color targets */ /* For all the color targets */
#if defined(HAVE_LCD_COLOR) || defined(MROBE_100) || \ #if defined(HAVE_LCD_COLOR) || defined(MROBE_100) || \
(LCD_DEPTH == 2) && !defined(ARCHOS_AV300) (LCD_DEPTH == 2) && !defined(ARCHOS_AV300)
#ifndef RB_PROFILE
doom doom
#endif #endif
#endif
/* For all the swcodec targets */ /* For all the swcodec targets */
#if CONFIG_CODEC == SWCODEC #if CONFIG_CODEC == SWCODEC
midi midi
/* beatbox */ /* beatbox */
#ifndef RB_PROFILE
mpegplayer mpegplayer
#endif #endif
#endif
#endif /* IRIVER_IFP7XX_SERIES */ #endif /* IRIVER_IFP7XX_SERIES */

4
firmware/export/profile.h
View file

@ -39,9 +39,9 @@ void profile_thread_stopped(int current_thread)
void profile_thread_started(int current_thread) void profile_thread_started(int current_thread)
NO_PROF_ATTR; NO_PROF_ATTR;
void profile_func_exit(void *this_fn, void *call_site) void __cyg_profile_func_exit(void *this_fn, void *call_site)
NO_PROF_ATTR ICODE_ATTR; NO_PROF_ATTR ICODE_ATTR;
void profile_func_enter(void *this_fn, void *call_site) void __cyg_profile_func_enter(void *this_fn, void *call_site)
NO_PROF_ATTR ICODE_ATTR; NO_PROF_ATTR ICODE_ATTR;
#endif /*_SYS_PROFILE_H*/ #endif /*_SYS_PROFILE_H*/

21
firmware/profile.c
View file

@ -62,7 +62,6 @@
#include <sys/types.h> #include <sys/types.h>
#include "profile.h" #include "profile.h"
/* PFD is Profiled Function Data */ /* PFD is Profiled Function Data */
/* Indices are shorts which means that we use 4k of RAM */ /* Indices are shorts which means that we use 4k of RAM */
@ -75,7 +74,7 @@
* for profiling, and allows for profiling sections of code with up-to * for profiling, and allows for profiling sections of code with up-to
* 1024 function caller->callee pairs * 1024 function caller->callee pairs
*/ */
#define NUMPFDS 1024 #define NUMPFDS 512
struct pfd_struct { struct pfd_struct {
void *self_pc; void *self_pc;
@ -141,7 +140,7 @@ void profile_thread_started(int current_thread) {
if (profiling < PROF_ERROR) { if (profiling < PROF_ERROR) {
/* After we de-mask, if profiling is active, reactivate the timer */ /* After we de-mask, if profiling is active, reactivate the timer */
timer_register(0, profile_timer_unregister, timer_register(0, profile_timer_unregister,
TIMER_FREQ/10000, 0, profile_timer_tick); TIMER_FREQ/10000, 0, profile_timer_tick IF_COP(, 0 ) );
} }
} }
} }
@ -168,9 +167,9 @@ void profstart(int current_thread) {
last_pfd = (struct pfd_struct*)0; last_pfd = (struct pfd_struct*)0;
pfds[0].link = 0; pfds[0].link = 0;
pfds[0].self_pc = 0; pfds[0].self_pc = 0;
memset(&indices,0,INDEX_SIZE * sizeof(unsigned short)); memset(indices,0,INDEX_SIZE * sizeof(unsigned short));
timer_register( timer_register(
0, profile_timer_unregister, TIMER_FREQ/10000, 0, profile_timer_tick); 0, profile_timer_unregister, TIMER_FREQ/10000, 0, profile_timer_tick IF_COP(, 0 ) );
profiling = PROF_ON; profiling = PROF_ON;
} }
@ -179,7 +178,7 @@ static void write_function_recursive(int fd, struct pfd_struct *pfd, int depth){
fdprintf(fd,"0x%08lX\t%08ld\t%08ld\t%04d\n", (size_t)pfd->self_pc, fdprintf(fd,"0x%08lX\t%08ld\t%08ld\t%04d\n", (size_t)pfd->self_pc,
pfd->count, pfd->time, depth); pfd->count, pfd->time, depth);
if (link > 0 && link < NUMPFDS) { if (link > 0 && link < NUMPFDS) {
write_function_recursive(fd, &pfds[link], depth++); write_function_recursive(fd, &pfds[link], ++depth);
} }
} }
@ -206,7 +205,7 @@ void profstop() {
} }
} }
fdprintf(fd,"DEBUG PROFILE DATA FOLLOWS\n"); fdprintf(fd,"DEBUG PROFILE DATA FOLLOWS\n");
fdprintf(fd,"INDEX\tLOCATION\tSELF_PC\t\tCOUNT\t\tTIME\t\tLINK\tCALLER\n"); fdprintf(fd,"INDEX\tLOCATION\tSELF_PC\t\tCOUNT\t\tTIME\t\tLINK\tCALLER_IDX\n");
for (i = 0; i < NUMPFDS; i++) { for (i = 0; i < NUMPFDS; i++) {
struct pfd_struct *my_last_pfd = &pfds[i]; struct pfd_struct *my_last_pfd = &pfds[i];
if (my_last_pfd->self_pc != 0) { if (my_last_pfd->self_pc != 0) {
@ -224,7 +223,7 @@ void profstop() {
close(fd); close(fd);
} }
void profile_func_exit(void *self_pc, void *call_site) { void __cyg_profile_func_exit(void *self_pc, void *call_site) {
(void)call_site; (void)call_site;
(void)self_pc; (void)self_pc;
/* When we started timing, we set the time to the tick at that time /* When we started timing, we set the time to the tick at that time
@ -255,7 +254,7 @@ void profile_func_exit(void *self_pc, void *call_site) {
pfd = &pfds[temp];\ pfd = &pfds[temp];\
pfd->self_pc = self_pc; pfd->count = 1; pfd->time = 0 pfd->self_pc = self_pc; pfd->count = 1; pfd->time = 0
void profile_func_enter(void *self_pc, void *from_pc) { void __cyg_profile_func_enter(void *self_pc, void *from_pc) {
struct pfd_struct *pfd; struct pfd_struct *pfd;
struct pfd_struct *prev_pfd; struct pfd_struct *prev_pfd;
unsigned short *pfd_index_pointer; unsigned short *pfd_index_pointer;
@ -339,3 +338,7 @@ overflow:
profiling = PROF_ERROR; profiling = PROF_ERROR;
return; return;
} }

39
tools/profile_reader/profile_reader.pl
View file

@ -36,11 +36,11 @@ sub read_map {
return %retval; return %retval;
} }
# string (filename.[ao]), hash(string:number) # string (filename.(a|o|elf)), hash(number:string), string(objdump_tool)
# return hash(number:string) # return hash(number:string)
sub read_library { sub read_library {
open(OBJECT_FILE,"objdump -t $_[0] |") || open(OBJECT_FILE,"$_[2] -t $_[0] |") ||
error("Couldn't pipe objdump for $_[0]"); error("Couldn't pipe objdump for $_[0]\nCommand was: $_[2] -t $_[0]");
my $library = $_[1]; my $library = $_[1];
my %library = %$library; my %library = %$library;
my %retval; my %retval;
@ -62,7 +62,7 @@ sub read_library {
if ($parts[3] eq $parts[5]) { if ($parts[3] eq $parts[5]) {
next; next;
} }
if ($parts[3] =~ m/\.(text|data|rodata|bss|icode|idata|irodata|ibss)/) { if ($parts[3] =~ m/\.(text|data|rodata|bss|icode|idata|irodata|ibss|iram)/) {
my $region = $parts[3]; my $region = $parts[3];
my $symbolOffset = hex("0x" . $parts[0]); my $symbolOffset = hex("0x" . $parts[0]);
my $sectionOffset = hex($library{$object . $region}); my $sectionOffset = hex($library{$object . $region});
@ -139,8 +139,16 @@ sub print_sorted {
my $totalCalls = 0; my $totalCalls = 0;
my $totalTicks = 0; my $totalTicks = 0;
$pfds = 0; $pfds = 0;
# we use a key sort, which means numerical fields need to be
# numerically sortable by an alphanumeric sort - we can simply
# do this by giving the numeric keys trailing zeros. Note that
# simple string concatenation (what this used to do) would not do this
foreach $element(@pfds) { foreach $element(@pfds) {
$elements{@$element[$sort_index] . @$element[2]} = $element; $ne = $element;
@$ne[0] = sprintf( "%08d", @$element[0]);
@$ne[1] = sprintf( "%08d", @$element[1]);
$elements{@$ne[$sort_index] . @$element[2]} = $element;
$pfds++; $pfds++;
$totalCalls += @$element[0]; $totalCalls += @$element[0];
$totalTicks += @$element[1]; $totalTicks += @$element[1];
@ -174,13 +182,17 @@ sub usage {
print STDERR ("Error: @_\n"); print STDERR ("Error: @_\n");
} }
print STDERR ("USAGE:\n"); print STDERR ("USAGE:\n");
print STDERR ("$0 profile.out map obj[...] [map obj[...]...] sort[...]\n"); print STDERR ("$0 profile.out objdump_tool map obj[...] [map obj[...]...] sort[...]\n");
print STDERR print STDERR
("\tprofile.out output from the profiler, extension is .out\n"); ("\tprofile.out output from the profiler, extension is .out\n");
print STDERR
("\tobjdump_tool name of objdump executable for this platform\n");
print STDERR
("\t e.g. arm-elf-objdump\n");
print STDERR print STDERR
("\tmap map file, extension is .map\n"); ("\tmap map file, extension is .map\n");
print STDERR print STDERR
("\tobj library or object file, extension is .a or .o\n"); ("\tobj library or object file, extension is .a or .o or .elf\n");
print STDERR print STDERR
("\tformat 0-2[_p] 0: by calls, 1: by ticks, 2: by name\n"); ("\tformat 0-2[_p] 0: by calls, 1: by ticks, 2: by name\n");
print STDERR print STDERR
@ -195,13 +207,13 @@ sub usage {
if ($ARGV[0] =~ m/-(h|help|-help)/) { if ($ARGV[0] =~ m/-(h|help|-help)/) {
usage(); usage();
} }
if (@ARGV < 2) { if (@ARGV < 3) {
usage("Requires at least 2 arguments"); usage("Requires at least 3 arguments");
} }
if ($ARGV[0] !~ m/\.out$/) { if ($ARGV[0] !~ m/\.out$/) {
usage("Profile file must end in .out"); usage("Profile file must end in .out");
} }
my $i = 1; my $i = 2;
my %symbols; my %symbols;
{ {
my %map; my %map;
@ -209,12 +221,12 @@ my %symbols;
my $file = $ARGV[$i]; my $file = $ARGV[$i];
if ($file =~ m/\.map$/) { if ($file =~ m/\.map$/) {
%map = read_map($file); %map = read_map($file);
} elsif ($file =~ m/\.[ao]$/) { } elsif ($file =~ m/\.(a|o|elf)$/) {
if (!%map) { if (!%map) {
usage("No map file found before first object file"); usage("No map file found before first object file");
} }
my @parts = split(/\//,$file); my @parts = split(/\//,$file);
my %new_symbols = read_library($file,$map{$parts[$#parts]}); my %new_symbols = read_library($file,$map{$parts[$#parts]},$ARGV[1]);
%symbols = merge_hashes(\%symbols,\%new_symbols); %symbols = merge_hashes(\%symbols,\%new_symbols);
} else { } else {
last; last;
@ -224,6 +236,9 @@ my %symbols;
if (!%symbols) { if (!%symbols) {
warning("No symbols found"); warning("No symbols found");
} }
if ($i >= @ARGV) {
error("You forgot to specify any sort ordering on output (e.g. 0, 1_p, 2)");
}
my @pfds = create_list($ARGV[0],\%symbols); my @pfds = create_list($ARGV[0],\%symbols);
for (; $i < @ARGV; $i++) { for (; $i < @ARGV; $i++) {
print_sorted(\@pfds,split("_",$ARGV[$i])); print_sorted(\@pfds,split("_",$ARGV[$i]));