[Crash-utility] [PATCH 2/3] vmware: vmss - beautify and extend debug log
The parser's debug log is missing a few line breaks as well as some
crucial information, like control register dumps.
Add them for read- and debugability.
Signed-off-by: Mathias Krause <minipli(a)grsecurity.net>
---
vmware_vmss.c | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/vmware_vmss.c b/vmware_vmss.c
index 11b7b72bf503..53745fd48527 100644
--- a/vmware_vmss.c
+++ b/vmware_vmss.c
@@ -175,8 +175,10 @@ vmware_vmss_init(char *filename, FILE *ofp)
}
DEBUG_PARSE_PRINT((ofp, "[%d]", idx[j]));
}
- if (nextgroup)
+ if (nextgroup) {
+ DEBUG_PARSE_PRINT((ofp, "\n"));
break;
+ }
if (IS_BLOCK_TAG(tag)) {
uint64_t nbytes;
@@ -232,16 +234,22 @@ vmware_vmss_init(char *filename, FILE *ofp)
filename, errno, strerror(errno));
break;
}
+ DEBUG_PARSE_PRINT((ofp, "\n"));
vmss.vcpu_regs[cpu] |= REGS_PRESENT_GPREGS;
} else if (strcmp(name, "CR64") == 0 &&
nbytes == VMW_CR64_SIZE &&
idx[0] < vmss.num_vcpus) {
int cpu = idx[0];
+ DEBUG_PARSE_PRINT((ofp, "\t=> "));
if (fread(&vmss.regs64[cpu]->cr[0], VMW_CR64_SIZE, 1, fp) != 1) {
error(INFO, LOGPRX"Failed to read '%s': [Error %d] %s\n",
filename, errno, strerror(errno));
break;
}
+ for (j = 0; j < VMW_CR64_SIZE / 8; j++) {
+ DEBUG_PARSE_PRINT((ofp, "%s%016llX", j ? " " : "",
vmss.regs64[cpu]->cr[j]));
+ }
+ DEBUG_PARSE_PRINT((ofp, "\n"));
vmss.vcpu_regs[cpu] |= REGS_PRESENT_CRS;
} else if (strcmp(name, "IDTR") == 0 &&
nbytes == VMW_IDTR_SIZE &&
@@ -258,6 +266,7 @@ vmware_vmss_init(char *filename, FILE *ofp)
filename, errno, strerror(errno));
break;
}
+ DEBUG_PARSE_PRINT((ofp, "\n"));
vmss.regs64[cpu]->idtr = idtr;
vmss.vcpu_regs[cpu] |= REGS_PRESENT_IDTR;
} else {
@@ -266,6 +275,7 @@ vmware_vmss_init(char *filename, FILE *ofp)
(ulonglong)(blockpos + nbytes));
break;
}
+ DEBUG_PARSE_PRINT((ofp, "\n"));
}
} else {
union {
--
2.20.1