Author: jhibbits
Date: Sat Mar 2 21:11:46 2019
New Revision: 344730
URL: https://svnweb.freebsd.org/changeset/base/344730
Log:
powerpc: fix 'show spr' for ELFv1 powerpc64
Update and flush the right cache range for the ELFv1 ABI.
MFC after: 1 week
Modified:
head/sys/powerpc/powerpc/machdep.c
Modified: head/sys/powerpc/powerpc/machdep.c
==============================================================================
--- head/sys/powerpc/powerpc/machdep.c Sat Mar 2 20:59:18 2019
(r344729)
+++ head/sys/powerpc/powerpc/machdep.c Sat Mar 2 21:11:46 2019
(r344730)
@@ -541,12 +541,16 @@ DB_SHOW_COMMAND(spr, db_show_spr)
saved_sprno = sprno = (intptr_t) addr;
sprno = ((sprno & 0x3e0) >> 5) | ((sprno & 0x1f) << 5);
p = (uint32_t *)(void *)&get_spr;
+#ifdef __powerpc64__
#if defined(_CALL_ELF) && _CALL_ELF == 2
/* Account for ELFv2 function prologue. */
p += 2;
+#else
+ p = *(volatile uint32_t * volatile *)p;
#endif
+#endif
*p = (*p & ~0x001ff800) | (sprno << 11);
- __syncicache(get_spr, cacheline_size);
+ __syncicache(__DEVOLATILE(uint32_t *, p), cacheline_size);
spr = get_spr(sprno);
db_printf("SPR %d(%x): %lx\n", saved_sprno, saved_sprno,
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