https://bugs.llvm.org/show_bug.cgi?id=41710
Bug ID: 41710
Summary: Please support the [[gnu::leaf]] attribute
Product: clang
Version: unspecified
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: Frontend
Assignee: unassignedclangb...@nondot.org
Reporter: raf...@espindo.la
CC: llvm-bugs@lists.llvm.org, neeil...@live.com,
richard-l...@metafoo.co.uk
gcc 9 warn if an alias "specifies less restrictive attribute than its target".
This means that a declaration of an alias to malloc has to look like
extern "C"
[[gnu::alias("malloc")]]
[[gnu::malloc]]
[[gnu::alloc_size(1)]]
[[gnu::leaf]]
void* __libc_malloc(size_t n) throw ();
or gcc will warn.
Of the above attributes, only gnu::leaf is missing from clang.
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