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-rw-r--r--tools/4.11/gdb/sparc/7.9/0006-sim-erc32-Fix-incorrect-simulator-performance-report.patch174
1 files changed, 174 insertions, 0 deletions
diff --git a/tools/4.11/gdb/sparc/7.9/0006-sim-erc32-Fix-incorrect-simulator-performance-report.patch b/tools/4.11/gdb/sparc/7.9/0006-sim-erc32-Fix-incorrect-simulator-performance-report.patch
new file mode 100644
index 0000000..4244172
--- /dev/null
+++ b/tools/4.11/gdb/sparc/7.9/0006-sim-erc32-Fix-incorrect-simulator-performance-report.patch
@@ -0,0 +1,174 @@
+From 623a6089a6202cc9fb40c0a7235fb7398ea3dfbe Mon Sep 17 00:00:00 2001
+From: Jiri Gaisler <jiri@gaisler.se>
+Date: Sat, 30 Aug 2014 23:00:05 +0200
+Subject: [PATCH 06/23] sim/erc32: Fix incorrect simulator performance report
+
+ * func.c (reset_stat, show_stat) switch to double in time keeping
+ (get_time) new function to get system time
+ * sis.h Likewise
+ * interf.c (run_sim) use get_time() for system time
+ * sis.c (run_sim) Likewise
+---
+ sim/erc32/func.c | 35 ++++++++++++++++++++++++++---------
+ sim/erc32/interf.c | 5 ++---
+ sim/erc32/sis.c | 5 ++---
+ sim/erc32/sis.h | 5 +++--
+ 4 files changed, 33 insertions(+), 17 deletions(-)
+
+diff --git a/sim/erc32/func.c b/sim/erc32/func.c
+index 6526085..06c00b4 100644
+--- a/sim/erc32/func.c
++++ b/sim/erc32/func.c
+@@ -613,7 +613,7 @@ void
+ reset_stat(sregs)
+ struct pstate *sregs;
+ {
+- sregs->tottime = 0;
++ sregs->tottime = 0.0;
+ sregs->pwdtime = 0;
+ sregs->ninst = 0;
+ sregs->fholdt = 0;
+@@ -632,9 +632,10 @@ show_stat(sregs)
+ struct pstate *sregs;
+ {
+ uint32 iinst;
+- uint32 stime, tottime;
++ uint32 stime;
+
+- if (sregs->tottime == 0) tottime = 1; else tottime = sregs->tottime;
++ if (sregs->tottime == 0.0)
++ sregs->tottime += 1E-6;
+ stime = ebase.simtime - sregs->simstart; /* Total simulated time */
+ #ifdef STAT
+
+@@ -669,12 +670,15 @@ show_stat(sregs)
+ sregs->freq * (float) (sregs->ninst - sregs->finst) /
+ (float) (stime - sregs->pwdtime),
+ sregs->freq * (float) sregs->finst / (float) (stime - sregs->pwdtime));
+- printf(" Simulated ERC32 time : %5.2f ms\n", (float) (ebase.simtime - sregs->simstart) / 1000.0 / sregs->freq);
+- printf(" Processor utilisation : %5.2f %%\n", 100.0 * (1.0 - ((float) sregs->pwdtime / (float) stime)));
+- printf(" Real-time / simulator-time : 1/%.2f \n",
+- ((float) sregs->tottime) / ((float) (stime) / (sregs->freq * 1.0E6)));
+- printf(" Simulator performance : %d KIPS\n",sregs->ninst/tottime/1000);
+- printf(" Used time (sys + user) : %3d s\n\n", sregs->tottime);
++ printf(" Simulated ERC32 time : %.2f s\n",
++ (float) (ebase.simtime - sregs->simstart) / 1000000.0 / sregs->freq);
++ printf(" Processor utilisation : %.2f %%\n",
++ 100.0 * (1.0 - ((float) sregs->pwdtime / (float) stime)));
++ printf(" Real-time performance : %.2f %%\n",
++ 100.0 / (sregs->tottime / ((double) (stime) / (sregs->freq * 1.0E6))));
++ printf(" Simulator performance : %.2f MIPS\n",
++ (double)(sregs->ninst) / sregs->tottime / 1E6);
++ printf(" Used time (sys + user) : %.2f s\n\n", sregs->tottime);
+ }
+
+
+@@ -1128,3 +1132,16 @@ bfd_load(fname)
+
+ return(bfd_get_start_address (pbfd));
+ }
++
++
++double get_time (void)
++{
++ double usec;
++
++ struct timeval tm;
++
++ gettimeofday (&tm, NULL);
++ usec = ((double) tm.tv_sec) * 1E6 + ((double) tm.tv_usec);
++ return (usec / 1E6);
++
++}
+diff --git a/sim/erc32/interf.c b/sim/erc32/interf.c
+index 9ac455f..38a2a0d 100644
+--- a/sim/erc32/interf.c
++++ b/sim/erc32/interf.c
+@@ -24,7 +24,6 @@
+ #include <string.h>
+ #include <stdio.h>
+ #include <stdlib.h>
+-#include <time.h>
+ #include <sys/fcntl.h>
+ #include "sis.h"
+ #include "libiberty.h"
+@@ -76,7 +75,7 @@ run_sim(sregs, icount, dis)
+ (*sim_callback->printf_filtered) (sim_callback, "resuming at %x\n",
+ sregs->pc);
+ init_stdio();
+- sregs->starttime = time(NULL);
++ sregs->starttime = get_time();
+ irq = 0;
+ if ((sregs->pc != 0) && (ebase.simtime == 0)) boot_init();
+ while (!sregs->err_mode & (icount > 0)) {
+@@ -142,7 +141,7 @@ run_sim(sregs, icount, dis)
+ }
+ }
+ sim_halt();
+- sregs->tottime += time(NULL) - sregs->starttime;
++ sregs->tottime += get_time() - sregs->starttime;
+ restore_stdio();
+ clearerr(stdin);
+ if (sregs->err_mode)
+diff --git a/sim/erc32/sis.c b/sim/erc32/sis.c
+index 89e6f02..f2aed78 100644
+--- a/sim/erc32/sis.c
++++ b/sim/erc32/sis.c
+@@ -26,7 +26,6 @@
+ #include <stdlib.h>
+ #endif
+ #include <stdio.h>
+-#include <time.h>
+ #include <sys/fcntl.h>
+ #include "sis.h"
+ #include <dis-asm.h>
+@@ -86,7 +85,7 @@ run_sim(sregs, icount, dis)
+ {
+ int irq, mexc, deb, asi;
+
+- sregs->starttime = time(NULL);
++ sregs->starttime = get_time();
+ init_stdio();
+ if (sregs->err_mode) icount = 0;
+ deb = dis || sregs->histlen || sregs->bptnum;
+@@ -146,7 +145,7 @@ run_sim(sregs, icount, dis)
+ if (sregs->tlimit <= ebase.simtime) sregs->tlimit = -1;
+ }
+ }
+- sregs->tottime += time(NULL) - sregs->starttime;
++ sregs->tottime += get_time() - sregs->starttime;
+ restore_stdio();
+ if (sregs->err_mode)
+ return (ERROR);
+diff --git a/sim/erc32/sis.h b/sim/erc32/sis.h
+index f49d45d..dc02c65 100644
+--- a/sim/erc32/sis.h
++++ b/sim/erc32/sis.h
+@@ -110,14 +110,14 @@ struct pstate {
+ float32 freq; /* Simulated processor frequency */
+
+
+- uint64 tottime;
++ double tottime;
+ uint64 ninst;
+ uint64 fholdt;
+ uint64 holdt;
+ uint64 icntt;
+ uint64 finst;
+ uint64 simstart;
+- uint64 starttime;
++ double starttime;
+ uint64 tlimit; /* Simulation time limit */
+ uint64 pwdtime; /* Cycles in power-down mode */
+ uint64 nstore; /* Number of load instructions */
+@@ -198,6 +198,7 @@ extern void reset_all (void);
+ extern void sys_reset (void);
+ extern void sys_halt (void);
+ extern int bfd_load (char *fname);
++extern double get_time (void);
+
+ /* exec.c */
+ extern int dispatch_instruction (struct pstate *sregs);
+--
+1.9.1
+
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