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profile: Improve error messages on bad GCDA files

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llvm-svn: 215933
This commit is contained in:
Justin Bogner
2014-08-18 20:47:32 +00:00
parent 4834653872
commit 8da47ac82e
1 changed files with 12 additions and 4 deletions
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16
compiler-rt/lib/profile/GCDAProfiling.c
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@@ -389,13 +389,17 @@ void llvm_gcda_emit_arcs(uint32_t num_counters, uint64_t *counters) {
if (val != (uint32_t)-1) {
/* There are counters present in the file. Merge them. */
if (val != 0x01a10000) {
fprintf(stderr, "profiling:invalid arc tag (0x%08x)\n", val);
fprintf(stderr, "profiling: %s: cannot merge previous GCDA file: "
"corrupt arc tag (0x%08x)\n",
filename, val);
return;
}
val = read_32bit_value();
if (val == (uint32_t)-1 || val / 2 != num_counters) {
fprintf(stderr, "profiling:invalid number of counters (%d)\n", val);
fprintf(stderr, "profiling: %s: cannot merge previous GCDA file: "
"mismatched number of counters (%d)\n",
filename, val);
return;
}
@@ -437,13 +441,17 @@ void llvm_gcda_summary_info() {
if (val != (uint32_t)-1) {
/* There are counters present in the file. Merge them. */
if (val != 0xa1000000) {
fprintf(stderr, "profiling:invalid object tag (0x%08x)\n", val);
fprintf(stderr, "profiling: %s: cannot merge previous run count: "
"corrupt object tag (0x%08x)\n",
filename, val);
return;
}
val = read_32bit_value(); /* length */
if (val != obj_summary_len) {
fprintf(stderr, "profiling:invalid object length (%d)\n", val);
fprintf(stderr, "profiling: %s: cannot merge previous run count: "
"mismatched object length (%d)\n",
filename, val);
return;
}