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| author | Pedro Alves <palves@redhat.com> | 2016-10-25 13:32:26 +0100 |
|---|---|---|
| committer | Pedro Alves <palves@redhat.com> | 2016-10-25 13:32:26 +0100 |
| commit | e4426cb42f082b0dc1298a173014f18ff0ff7ea7 (patch) | |
| tree | 8ddb30d4cc73509445877dd403a974fdffaca5ed /gdb | |
| parent | 28fe4f87e0b815f4c0d9b80e0a9f3e6a53c649b3 (diff) | |
| download | gdb-e4426cb42f082b0dc1298a173014f18ff0ff7ea7.zip gdb-e4426cb42f082b0dc1298a173014f18ff0ff7ea7.tar.gz gdb-e4426cb42f082b0dc1298a173014f18ff0ff7ea7.tar.bz2 | |
new-op.c: Add comment about -fsanitize=address
gdb/ChangeLog:
2016-10-25 Pedro Alves <palves@redhat.com>
* common/new-op.c: Add comment about -fsanitize=address.
Diffstat (limited to 'gdb')
| -rw-r--r-- | gdb/ChangeLog | 4 | ||||
| -rw-r--r-- | gdb/common/new-op.c | 6 |
2 files changed, 10 insertions, 0 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 40fab9b..c2a8579 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,5 +1,9 @@ 2016-10-25 Pedro Alves <palves@redhat.com> + * common/new-op.c: Add comment about -fsanitize=address. + +2016-10-25 Pedro Alves <palves@redhat.com> + * common/common-defs.h (__STDC_CONSTANT_MACROS) (__STDC_LIMIT_MACROS): Define. diff --git a/gdb/common/new-op.c b/gdb/common/new-op.c index f04c5cb..1eb4f94 100644 --- a/gdb/common/new-op.c +++ b/gdb/common/new-op.c @@ -33,6 +33,12 @@ new-handler function instead (std::set_new_handler) because we want to catch allocation errors from within global constructors too. + Skip overriding if building with -fsanitize=address though. + Address sanitizer wants to override operator new/delete too in + order to detect malloc+delete and new+free mismatches. Our + versions would mask out ASan's, with the result of losing that + useful mismatch detection. + Note that C++ implementations could either have their throw versions call the nothrow versions (libstdc++), or the other way around (clang/libc++). For that reason, we replace both throw and |