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Hide [[gnu::malloc(deallocator)]] in a macro

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Clang doesn't implement this attribute and reports an error.  Work
around it by hiding it in a macro that will be empty in clang.

Reported-by: Christian Göttsche <cgzones@googlemail.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
This commit is contained in:
Alejandro Colomar 2022-09-28 23:09:19 +02:00 committed by Iker Pedrosa
parent 554f86bafa
commit ab91ec10b4
2 changed files with 7 additions and 1 deletions
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6
lib/defines.h
View File

@ -330,6 +330,12 @@ extern char *strerror ();
/* Maximum length of passwd entry */
#define PASSWD_ENTRY_MAX_LENGTH 32768
#if (__GNUC__ >= 11) && !defined(__clang__)
# define ATTR_MALLOC(deallocator) [[gnu::malloc(deallocator)]]
#else
# define ATTR_MALLOC(deallocator)
#endif
#ifdef HAVE_SECURE_GETENV
# define shadow_getenv(name) secure_getenv(name)
# else

2
lib/prototypes.h
View File

@ -47,7 +47,7 @@ extern int expire (const struct passwd *, /*@null@*/const struct spwd *);
/* agetpass.c */
extern void erase_pass(char *pass);
[[gnu::malloc(erase_pass)]]
ATTR_MALLOC(erase_pass)
extern char *agetpass(const char *prompt);
/* isexpired.c */