db7c82231c
This amends commit 00be3578e0 to demangle symbol
names in global descriptors. We keep the mangled name for the `__odr_gen_asan_*`
variables and the runtime __cxa_demangle call site change (which fixed possible
leaks for other scenarios: non-fatal diagnostics).
compiler-rt/lib/sanitizer_common/sanitizer_symbolizer_posix_libcdep.cpp uses
an undefined weak `__cxa_demangle` which does not pull in an archive definition.
A -static-libstdc++ executable link does not get demangled names.
Unfortunately this means we cannot rely on runtime demangling.
See compiler-rt/test/asan/TestCases/global-demangle.cpp
27 lines
1.0 KiB
C++
27 lines
1.0 KiB
C++
// RUN: %clangxx_asan -fno-sanitize-address-use-odr-indicator -fPIC %s -o %t
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// RUN: %env_asan_opts=report_globals=2 %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK,INDICATOR0
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// RUN: %clangxx_asan -fsanitize-address-use-odr-indicator -fPIC %s -o %t
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// RUN: %env_asan_opts=report_globals=2 %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK,INDICATOR1
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#include <stdio.h>
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int test_global_1;
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// INDICATOR0-DAG: Added Global{{.*}} name=test_global_1{{.*}} odr_indicator={{0x0+$}}
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// INDICATOR1-DAG: Added Global{{.*}} name=test_global_1{{.*}} odr_indicator={{0x0*[^0]+.*$}}
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static int test_global_2;
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// CHECK-DAG: Added Global{{.*}} name=test_global_2{{.*}} odr_indicator={{0xf+$}}
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namespace {
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static int test_global_3;
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// CHECK-DAG: Added Global{{.*}} name={{.*}}::test_global_3{{.*}} odr_indicator={{0xf+$}}
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} // namespace
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int main() {
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const char f[] = "%d %d %d\n";
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// CHECK-DAG: Added Global{{.*}} name=__const.main.f{{.*}} odr_indicator={{0xf+$}}
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printf(f, test_global_1, test_global_2, test_global_3);
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return 0;
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}
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