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Fix SWAP_8 and optimize it; print out the failing address if a signal is issued for non-gdb runs

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This commit is contained in:
Michael Meissner 1995-10-26 16:43:00 +00:00
parent 65f1be0633
commit 22ddef466e
3 changed files with 42 additions and 60 deletions
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11
sim/ppc/ChangeLog
View File

@ -1,3 +1,14 @@
Thu Oct 26 10:42:28 1995 Michael Meissner <meissner@tiktok.cygnus.com>
* ppc-endian.c (SWAP_n): Add SET argument to allow use of SWAP
macros for either assignment or return. Fix SWAP_8 to use a
union, and two SWAP_4's. Delete SWAP_N, since nobody uses it now.
(ENDIAN_N): Add SET argument to SWAP_n calls. Delete macro defs
that hardwired swapping on/off, let optimizer delete dead code.
* main.c (main): Add printf that we caught a signal and print out
the failing address.
Thu Oct 19 21:43:39 1995 Fred Fish <fnf@fishfood.amigalib.com>
* Makefile.in: Remove tabs from otherwise empty line.

30
sim/ppc/main.c
View File

@ -38,6 +38,7 @@ printf_filtered(const char *msg, ...)
va_list ap;
va_start(ap, msg);
vprintf(msg, ap);
va_end(ap);
}
void
@ -46,6 +47,7 @@ error (char *msg, ...)
va_list ap;
va_start(ap, msg);
vprintf(msg, ap);
va_end(ap);
exit (1);
}
@ -68,7 +70,7 @@ zfree(void *chunk)
static void
usage(void)
{
error ("Usage: psim [ -a -p -c -C -s -i -I -t ] <image> [ <image-args> ... ]\n");
error ("Usage: psim [ -a -p -c -C -s -i -I -t -g ] <image> [ <image-args> ... ]\n");
}
int
@ -85,39 +87,41 @@ main(int argc, char **argv)
/* check for arguments -- note sim_calls.c also contains argument processing
code for the simulator linked within gdb. */
while ((letter = getopt (argc, argv, "acCiIpst")) != EOF)
while ((letter = getopt (argc, argv, "acCiIpstg")) != EOF)
{
switch (letter) {
case 'a':
for (i = 0; i < nr_trace; i++)
trace[i] = 1;
ppc_trace[i] = 1;
break;
case 'p':
trace[trace_cpu] = trace[trace_semantics] = 1;
ppc_trace[trace_cpu] = ppc_trace[trace_semantics] = 1;
break;
case 'c':
trace[trace_core] = 1;
ppc_trace[trace_core] = 1;
break;
case 'C':
trace[trace_console_device] = 1;
ppc_trace[trace_console_device] = 1;
break;
case 's':
trace[trace_create_stack] = 1;
ppc_trace[trace_create_stack] = 1;
break;
case 'i':
trace[trace_icu_device] = 1;
ppc_trace[trace_icu_device] = 1;
break;
case 'I':
print_info = 1;
break;
case 't':
trace[trace_device_tree] = 1;
ppc_trace[trace_device_tree] = 1;
break;
case 'g':
ppc_trace[trace_gdb] = 1;
break;
default:
usage();
}
}
if (optind >= argc)
usage();
name_of_file = argv[optind];
@ -132,11 +136,12 @@ main(int argc, char **argv)
putenv(arg_);
/* initialize it */
psim_load(system);
psim_init(system);
psim_stack(system, &argv[optind], environ);
psim_run(system);
/* any final clean up */
if (print_info)
psim_print_info (system, 1);
@ -152,6 +157,9 @@ main(int argc, char **argv)
case was_exited:
return status.signal;
case was_signalled:
printf ("%s: Caught signal %d at address 0x%lx\n",
name_of_file, (int)status.signal,
(long)status.program_counter);
return status.signal;
default:
error("unknown halt condition\n");

61
sim/ppc/ppc-endian.c
View File

@ -33,78 +33,41 @@
#include "ppc-endian.h"
#include "sim_callbacks.h"
typedef union {
unsigned_1 val_1[8];
unsigned_2 val_2[4];
unsigned_4 val_4[2];
unsigned_8 val_8[1];
} endian_map;
#define SWAP_N(RAW,BYTE_SIZE) \
endian_map in; \
endian_map out; \
int byte_nr; \
in.val_##BYTE_SIZE[0] = RAW; \
for (byte_nr = 0; byte_nr < BYTE_SIZE; byte_nr++) { \
out.val_1[BYTE_SIZE-1-byte_nr] = in.val_1[byte_nr]; \
} \
return out.val_##BYTE_SIZE[0]; \
#if (WITH_HOST_BYTE_ORDER == LITTLE_ENDIAN) && WITH_NTOH
#define SWAP_2(RAW) return htons (RAW)
#define SWAP_2(SET,RAW) SET htons (RAW)
#endif
#ifndef SWAP_2
#define SWAP_2(RAW) return (((RAW) >> 8) | ((RAW) << 8))
#define SWAP_2(SET,RAW) SET (((RAW) >> 8) | ((RAW) << 8))
#endif
#if !defined(SWAP_4) && (WITH_HOST_BYTE_ORDER == LITTLE_ENDIAN) && WITH_NTOH
#define SWAP_4(RAW) return htonl (RAW)
#define SWAP_4(SET,RAW) SET htonl (RAW)
#endif
#ifndef SWAP_4
#define SWAP_4(RAW) return (((RAW) << 24) | (((RAW) & 0xff00) << 8) | (((RAW) & 0xff0000) >> 8) | ((RAW) >> 24))
#define SWAP_4(SET,RAW) SET (((RAW) << 24) | (((RAW) & 0xff00) << 8) | (((RAW) & 0xff0000) >> 8) | ((RAW) >> 24))
#endif
#ifndef SWAP_8
#define SWAP_8(RAW) SWAP_N(RAW,4)
#endif
/* no need to swap */
#if (WITH_HOST_BYTE_ORDER \
&& WITH_TARGET_BYTE_ORDER \
&& WITH_HOST_BYTE_ORDER == WITH_TARGET_BYTE_ORDER )
#define ENDIAN_N(NAME,BYTE_SIZE) \
unsigned_##BYTE_SIZE \
endian_##NAME##_##BYTE_SIZE(unsigned_##BYTE_SIZE raw_in) \
{ \
return raw_in; \
}
#endif
/* always need to swap */
#if (WITH_HOST_BYTE_ORDER \
&& WITH_TARGET_BYTE_ORDER \
&& WITH_HOST_BYTE_ORDER != WITH_TARGET_BYTE_ORDER )
#define ENDIAN_N(NAME,BYTE_SIZE) \
unsigned_##BYTE_SIZE \
endian_##NAME##_##BYTE_SIZE(unsigned_##BYTE_SIZE raw_in) \
{ \
SWAP_##BYTE_SIZE(raw_in); \
}
#define SWAP_8(SET,RAW) \
union { unsigned_8 dword; unsigned_4 words[2]; } in, out; \
in.dword = RAW; \
SWAP_4 (out.words[0] =, in.words[1]); \
SWAP_4 (out.words[1] =, in.words[0]); \
SET out.dword;
#endif
#ifndef ENDIAN_N
#define ENDIAN_N(NAME,BYTE_SIZE) \
unsigned_##BYTE_SIZE \
INLINE unsigned_##BYTE_SIZE \
endian_##NAME##_##BYTE_SIZE(unsigned_##BYTE_SIZE raw_in) \
{ \
if (CURRENT_TARGET_BYTE_ORDER == CURRENT_HOST_BYTE_ORDER) { \
return raw_in; \
} \
else { \
SWAP_##BYTE_SIZE(raw_in); \
SWAP_##BYTE_SIZE(return, raw_in); \
} \
}
#endif