diff options
| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2025-11-20 15:30:11 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2025-11-21 13:13:11 -0300 |
| commit | 8d26bed1ebcefd5d2059fd7d7462bdf6593d77fa (patch) | |
| tree | c48233a37c87ba56389fed5c6d2871a27e9318f4 /include/bits | |
| parent | 25de0771ecac240a54f03ab55247d92457e4c310 (diff) | |
Enable --enable-fortify-source with clang
clang generates internal calls for some _chk symbol, so add internal
aliases for them, and stub some with rtld-stubbed-symbols to avoid
ld.so linker issues.
Reviewed-by: Sam James <sam@gentoo.org>
Diffstat (limited to 'include/bits')
| -rw-r--r-- | include/bits/inet-fortified-decl.h | 5 | ||||
| -rw-r--r-- | include/bits/stdio2-decl.h | 7 | ||||
| -rw-r--r-- | include/bits/string_fortified.h | 15 | ||||
| -rw-r--r-- | include/bits/syslog-decl.h | 4 | ||||
| -rw-r--r-- | include/bits/unistd-decl.h | 6 | ||||
| -rw-r--r-- | include/bits/wchar2-decl.h | 5 |
6 files changed, 42 insertions, 0 deletions
diff --git a/include/bits/inet-fortified-decl.h b/include/bits/inet-fortified-decl.h index e6ad4d4663..1110ce49f2 100644 --- a/include/bits/inet-fortified-decl.h +++ b/include/bits/inet-fortified-decl.h @@ -1 +1,6 @@ #include <inet/bits/inet-fortified-decl.h> + +#ifndef _ISOMAC +libc_hidden_proto (__inet_ntop_chk) +libc_hidden_proto (__inet_pton_chk) +#endif diff --git a/include/bits/stdio2-decl.h b/include/bits/stdio2-decl.h index bbb052f192..9758bf4b55 100644 --- a/include/bits/stdio2-decl.h +++ b/include/bits/stdio2-decl.h @@ -1 +1,8 @@ #include <libio/bits/stdio2-decl.h> + +#ifndef _ISOMAC +libc_hidden_proto (__fgets_unlocked_chk) +libc_hidden_ldbl_proto (vfprintf) +libc_hidden_ldbl_proto (__vasprintf_chk) +libc_hidden_ldbl_proto (__vfprintf_chk) +#endif diff --git a/include/bits/string_fortified.h b/include/bits/string_fortified.h index 88bf073c9c..0cf0e76db1 100644 --- a/include/bits/string_fortified.h +++ b/include/bits/string_fortified.h @@ -1 +1,16 @@ +#ifndef _ISOMAC +# if IS_IN(libc) && defined SHARED +/* Redirect calls from __builtin_stpcpy_chk to internal __stpcpy when building + with fortify enable. */ +__asm__ ("stpcpy = __GI___stpcpy"); +# endif + +/* Add the internal aliass attribute to symbol before they first usage on the + fortify wrappers. */ +libc_hidden_builtin_proto (memcpy) +libc_hidden_builtin_proto (mempcpy) +libc_hidden_builtin_proto (memmove) +libc_hidden_builtin_proto (memset) +#endif + #include <string/bits/string_fortified.h> diff --git a/include/bits/syslog-decl.h b/include/bits/syslog-decl.h index 491a263777..762b289184 100644 --- a/include/bits/syslog-decl.h +++ b/include/bits/syslog-decl.h @@ -1 +1,5 @@ #include <misc/bits/syslog-decl.h> + +#ifndef _ISOMAC +libc_hidden_ldbl_proto (__vsyslog_chk) +#endif diff --git a/include/bits/unistd-decl.h b/include/bits/unistd-decl.h index 7fcbd272ac..dd6af7e4c8 100644 --- a/include/bits/unistd-decl.h +++ b/include/bits/unistd-decl.h @@ -1 +1,7 @@ #include <posix/bits/unistd-decl.h> + +#ifndef _ISOMAC +libc_hidden_proto (__read_chk) +libc_hidden_proto (__getdomainname_chk) +libc_hidden_proto (__getlogin_r_chk) +#endif diff --git a/include/bits/wchar2-decl.h b/include/bits/wchar2-decl.h index 00b1b93342..f3b8a8cf87 100644 --- a/include/bits/wchar2-decl.h +++ b/include/bits/wchar2-decl.h @@ -1 +1,6 @@ #include <wcsmbs/bits/wchar2-decl.h> + +#ifndef _ISOMAC +libc_hidden_builtin_proto (__wmemset_chk) +libc_hidden_proto (__wcrtomb_chk) +#endif |