From: Stefan Liebler <stli@linux.ibm.com>
To: libc-alpha@sourceware.org
Cc: Stefan Liebler <stli@linux.ibm.com>
Subject: [PATCH] string: Add hidden builtin definition for __strcpy_chk.
Date: Mon, 5 Feb 2024 14:22:06 +0100 [thread overview]
Message-ID: <20240205132206.1603576-1-stli@linux.ibm.com> (raw)
Otherwise on at least x86_64 and s390x there is an unwanted PLT entry
in libc.so when configured with --enable-fortify-source and build
with -Os.
This is observed in elf/check-localplt
Extra PLT reference: libc.so: __strcpy_chk
The call to PLT entry is in inet/ruserpass.c.
---
debug/strcpy_chk.c | 1 +
include/string.h | 1 +
2 files changed, 2 insertions(+)
diff --git a/debug/strcpy_chk.c b/debug/strcpy_chk.c
index e54780ddde..dd2c453417 100644
--- a/debug/strcpy_chk.c
+++ b/debug/strcpy_chk.c
@@ -31,3 +31,4 @@ __strcpy_chk (char *dest, const char *src, size_t destlen)
return memcpy (dest, src, len + 1);
}
+libc_hidden_builtin_def (__strcpy_chk)
diff --git a/include/string.h b/include/string.h
index 86d1fa4abe..3b4c6007d7 100644
--- a/include/string.h
+++ b/include/string.h
@@ -215,6 +215,7 @@ libc_hidden_builtin_proto (__mempcpy_chk)
libc_hidden_builtin_proto (__memset_chk)
libc_hidden_builtin_proto (__stpcpy_chk)
libc_hidden_builtin_proto (__strncpy_chk)
+libc_hidden_builtin_proto (__strcpy_chk)
#endif
--
2.43.0
next reply other threads:[~2024-02-05 13:22 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-05 13:22 Stefan Liebler [this message]
2024-02-05 18:12 ` Adhemerval Zanella Netto
2024-02-06 8:19 ` Stefan Liebler
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