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Do not create deep backtraces unless in ENABLE_DEBUG mode 

Signed-off-by: Clifford Wolf <clifford@clifford.at>
This commit is contained in:
Clifford Wolf 2018-02-03 15:04:39 +01:00
parent e4f0218907
commit 82c436587c
2 changed files with 6 additions and 2 deletions
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4
Makefile
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@ -264,9 +264,9 @@ endif
ifeq ($(ENABLE_DEBUG),1)
ifeq ($(CONFIG),clang)
CXXFLAGS := -O0 $(filter-out -Os,$(CXXFLAGS))
CXXFLAGS := -O0 -DDEBUG $(filter-out -Os,$(CXXFLAGS))
else
CXXFLAGS := -Og $(filter-out -Os,$(CXXFLAGS))
CXXFLAGS := -Og -DDEBUG $(filter-out -Os,$(CXXFLAGS))
endif
endif

4
kernel/log.cc
View File

@ -375,6 +375,9 @@ void log_backtrace(const char *prefix, int levels)
if (levels <= 1) return;
#ifndef DEBUG
log("%sframe #2: [build Yosys with ENABLE_DEBUG for deeper backtraces]\n", prefix);
#else
if ((p = __builtin_extract_return_addr(__builtin_return_address(1))) && dladdr(p, &dli)) {
log("%sframe #2: %p %s(%p) %s(%p)\n", prefix, p, dli.dli_fname, dli.dli_fbase, dli.dli_sname, dli.dli_saddr);
} else {
@ -446,6 +449,7 @@ void log_backtrace(const char *prefix, int levels)
}
if (levels <= 9) return;
#endif
}
#else
void log_backtrace(const char*, int) { }