From a745c4bfc8a9b5db4e48387170da0dc1d39e3abe Mon Sep 17 00:00:00 2001
From: Waldemar Brodkorb <wbx@uclibc-ng.org>
Date: Tue, 7 Nov 2017 20:50:27 +0100
Subject: remove unused FORTIFY code fragments

---
 libc/string/x86_64/memcpy.S           |  6 ------
 libc/string/x86_64/memset.S           |  9 ---------
 libc/sysdeps/linux/common/Makefile.in |  2 +-
 libc/sysdeps/linux/common/ssp.c       | 20 --------------------
 4 files changed, 1 insertion(+), 36 deletions(-)

(limited to 'libc')

diff --git a/libc/string/x86_64/memcpy.S b/libc/string/x86_64/memcpy.S
index e164278df..af2f914ff 100644
--- a/libc/string/x86_64/memcpy.S
+++ b/libc/string/x86_64/memcpy.S
@@ -25,12 +25,6 @@
 #define MEMPCPY_P (defined memcpy)
 
         .text
-#if defined __PIC__ && !defined NOT_IN_libc && defined __UCLIBC_HAS_FORTIFY__
-ENTRY (__memcpy_chk)
-	cmpq	%rdx, %rcx
-	jb	HIDDEN_JUMPTARGET (__chk_fail)
-END (__memcpy_chk)
-#endif
 ENTRY (BP_SYM (memcpy))
 	/* Cutoff for the big loop is a size of 32 bytes since otherwise
 	   the loop will never be entered.  */
diff --git a/libc/string/x86_64/memset.S b/libc/string/x86_64/memset.S
index d6744129d..fa79275a7 100644
--- a/libc/string/x86_64/memset.S
+++ b/libc/string/x86_64/memset.S
@@ -28,11 +28,6 @@
 #define LARGE $120000
 
         .text
-#if defined __PIC__ && !defined NOT_IN_libc && defined __UCLIBC_HAS_FORTIFY__
-ENTRY (__memset_chk)
-	cmpq	%rdx, %rcx
-	jb	HIDDEN_JUMPTARGET (__chk_fail)
-END (__memset_chk)
 #endif
 ENTRY (memset)
 #if BZERO_P
@@ -140,7 +135,3 @@ END (memset)
 #if !BZERO_P
 libc_hidden_def(memset)
 #endif
-
-#if !BZERO_P && defined __PIC__ && !defined NOT_IN_libc && defined __UCLIBC_HAS_FORTIFY__
-strong_alias (__memset_chk, __memset_zero_constant_len_parameter)
-#endif
diff --git a/libc/sysdeps/linux/common/Makefile.in b/libc/sysdeps/linux/common/Makefile.in
index faed6fd5d..5ba1906d7 100644
--- a/libc/sysdeps/linux/common/Makefile.in
+++ b/libc/sysdeps/linux/common/Makefile.in
@@ -14,7 +14,7 @@ CSRC-  := ssp-local.c
 CSRC_LFS := $(notdir $(wildcard $(COMMON_DIR)/*64.c))
 CSRC-y := $(filter-out llseek.c $(CSRC_LFS),$(CSRC-y))
 CSRC-y += llseek.c $(CSRC_LFS)
-CSRC-$(findstring y,$(UCLIBC_HAS_SSP)$(UCLIBC_HAS_FORTIFY)) += ssp.c
+CSRC-$(findstring y,$(UCLIBC_HAS_SSP)) += ssp.c
 # we need these internally: fstatfs.c statfs.c
 CSRC-$(UCLIBC_LINUX_SPECIFIC) += \
 	bdflush.c \
diff --git a/libc/sysdeps/linux/common/ssp.c b/libc/sysdeps/linux/common/ssp.c
index 87e10c2da..2a98a4e2a 100644
--- a/libc/sysdeps/linux/common/ssp.c
+++ b/libc/sysdeps/linux/common/ssp.c
@@ -85,23 +85,3 @@ ssp_handler(void)
 }
 
 strong_alias(ssp_handler,__stack_chk_fail)
-
-#ifdef __UCLIBC_HAS_FORTIFY__
-/* should be redone when activated to use common code above.
- * for now, it works without debugging support */
-void __chk_fail(void)
-{
-	static const char msg_fail[] = "*** buffer overflow detected ***: ";
-	static const char msg_terminated[] = " terminated";
-	pid_t pid;
-
-	do_msg(msg_fail, __uclibc_progname, msg_terminated);
-
-	pid = getpid();
-	(void)kill(pid, SIGKILL);
-	/* The loop is added only to keep gcc happy. */
-	while(1)
-		_exit(127);
-}
-libc_hidden_def(__chk_fail)
-#endif
-- 
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