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Software for White Rabbit PTP Core
Commit 4e548d23 authored by Alessandro Rubini's avatar Alessandro Rubini
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tools: support endianness differences in wrpc-dump 

It's still suboptimal, we need to autodetect with a in-binary helper,
but by now I'm analyzing old logs so I'd better not change wrpc
itself.
Signed-off-by: Alessandro Rubini's avatarAlessandro Rubini <rubini@gnudd.com>
parent b607fb06
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Showing with 54 additions and 12 deletions
tools/wrpc-dump.c
View file @ 4e548d23
......@@ -14,6 +14,13 @@
#include <ppsi/ppsi.h>
#include "libsdbfs.h" /* ntohll */
/* We have a problem: ppsi is built for wrpc, so it has ntoh[sl] wrong */
#undef ntohl
#undef ntohs
#undef ntohll
#define ntohs(x) __do_not_use
#define ntohl(x) __do_not_use
#define ntohll(x) __do_not_use
/* be safe, in case some other header had them slightly differently */
#undef container_of
......@@ -27,6 +34,41 @@
#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
/*
* This picks items from memory, converting as needed. No ntohl any more.
* Next, we'll detect the byte order from the code itself.
*/
static long long wrpc_get_64(void *p)
{
uint64_t *p64 = p;
uint64_t result;
result = __bswap_32((uint32_t)(*p64 >> 32));
result <<= 32;
result |= __bswap_32((uint32_t)*p64);
return result;
}
/* printf complains for i/l mismatch, so get i32 and l32 separately */
static long wrpc_get_l32(void *p)
{
uint32_t *p32 = p;
return __bswap_32(*p32);
}
static int wrpc_get_i32(void *p)
{
return wrpc_get_l32(p);
}
static int wrpc_get_16(void *p)
{
uint16_t *p16 = p;
return __bswap_16(*p16);
}
/*
* To ease copying from header files, allow int, char and other known types.
* Please add more type as more structures are included here
......@@ -97,21 +139,21 @@ void dump_one_field(void *addr, struct dump_info *info)
i == info->size - 1 ? '\n' : ':');
break;
case dump_type_UInteger64:
printf("%lld\n", (long long)ntohll(*(unsigned long long *)p));
printf("%lld\n", wrpc_get_64(p));
break;
case dump_type_Integer64:
printf("%lld\n", (long long)ntohll(*(long long *)p));
printf("%lld\n", wrpc_get_64(p));
break;
case dump_type_uint32_t:
printf("0x%08lx\n", (long)ntohl(*(uint32_t *)p));
printf("0x%08lx\n", wrpc_get_l32(p));
break;
case dump_type_Integer32:
case dump_type_int:
printf("%i\n", ntohl(*(int *)p));
printf("%i\n", wrpc_get_i32(p));
break;
case dump_type_UInteger32:
case dump_type_unsigned_long:
printf("%li\n", (long)ntohl(*(unsigned long *)p));
printf("%li\n", wrpc_get_l32(p));
break;
case dump_type_unsigned_char:
case dump_type_UInteger8:
......@@ -123,7 +165,7 @@ void dump_one_field(void *addr, struct dump_info *info)
case dump_type_UInteger16:
case dump_type_uint16_t:
case dump_type_unsigned_short:
printf("%i\n", ntohs(*(unsigned short *)p));
printf("%i\n", wrpc_get_16(p));
break;
case dump_type_double:
printf("%lf\n", *(double *)p);
......@@ -132,17 +174,17 @@ void dump_one_field(void *addr, struct dump_info *info)
printf("%f\n", *(float *)p);
break;
case dump_type_pointer:
printf("%p\n", *(void **)p);
printf("%08lx\n", wrpc_get_l32(p));
break;
case dump_type_Integer16:
printf("%i\n", ntohs(*(short *)p));
printf("%i\n", wrpc_get_16(p));
break;
case dump_type_TimeInternal:
printf("correct %i: %10i.%09i:%04i\n",
ntohl(ti->correct),
ntohl(ti->seconds),
ntohl(ti->nanoseconds),
ntohl(ti->phase));
wrpc_get_i32(&ti->correct),
wrpc_get_i32(&ti->seconds),
wrpc_get_i32(&ti->nanoseconds),
wrpc_get_i32(&ti->phase));
break;
case dump_type_ip_address:
......
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