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| author | Lennart Poettering <lennart@poettering.net> | 2018-12-03 17:33:28 +0100 |
|---|---|---|
| committer | Lennart Poettering <lennart@poettering.net> | 2018-12-03 17:35:50 +0100 |
| commit | 7fdf40d247361a510661915fbbddddb97b9aa8ff (patch) | |
| tree | d7d6f70e49458ba067dcfa9daef6ae309916f9cf /src/basic/static-destruct.h | |
| parent | macro: add macro for llvm no_sanitize_address attribute (diff) | |
| download | systemd-7fdf40d247361a510661915fbbddddb97b9aa8ff.tar.xz systemd-7fdf40d247361a510661915fbbddddb97b9aa8ff.zip | |
static-destruct: turn on new _variable_no_sanitize_address_ variable for STATIC_DESTRUCTOR_REGISTER
Diffstat (limited to 'src/basic/static-destruct.h')
| -rw-r--r-- | src/basic/static-destruct.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/basic/static-destruct.h b/src/basic/static-destruct.h index 5c0bea31a6..9f7392121d 100644 --- a/src/basic/static-destruct.h +++ b/src/basic/static-destruct.h @@ -21,10 +21,14 @@ typedef struct StaticDestructor { typeof(variable) *q = p; \ func(q); \ } \ - /* The actual destructor structure */ \ + /* The actual destructor structure we place in a special section to find it */ \ _section_("SYSTEMD_STATIC_DESTRUCT") \ + /* We pick pointer alignment, since that is apparently what gcc does for static variables */ \ _alignptr_ \ + /* Make sure this is not dropped from the image because not explicitly referenced */ \ _used_ \ + /* Make sure that AddressSanitizer doesn't pad this variable: we want everything in this section packed next to each other so that we can enumerate it. */ \ + _variable_no_sanitize_address_ \ static const StaticDestructor UNIQ_T(static_destructor_entry, uq) = { \ .data = &(variable), \ .destroy = UNIQ_T(static_destructor_wrapper, uq), \ |