39 lines
1.6 KiB
Diff
39 lines
1.6 KiB
Diff
commit 3a885c1f51b18852869a91cf59a1b39da1595c7a
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Author: Florian Weimer <fweimer@redhat.com>
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Date: Thu Jul 5 22:57:45 2018 +0200
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Build csu/elf-init.c and csu/static-reloc.c with stack protector
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This does not change generated code (with -fstack-protector-strong), but
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is important for formal compiler flags compliance.
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Reviewed-by: Carlos O'Donell <carlos@redhat.com>
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diff --git a/csu/Makefile b/csu/Makefile
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index f3498960f89e3b31..88fc77662ef83479 100644
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--- a/csu/Makefile
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+++ b/csu/Makefile
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@@ -50,6 +50,22 @@ CFLAGS-.o += $(no-stack-protector)
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CFLAGS-.op += $(no-stack-protector)
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CFLAGS-.os += $(no-stack-protector)
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+# Dummy object not actually used for anything. It is linked into
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+# crt1.o nevertheless, which in turn is statically linked into
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+# applications, so that build flags matter.
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+# See <https://sourceware.org/ml/libc-alpha/2018-07/msg00101.html>.
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+# NB: Using $(stack-protector) in this way causes a wrong definition
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+# STACK_PROTECTOR_LEVEL due to the preceding $(no-stack-protector),
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+# but it does not matter for this source file.
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+CFLAGS-static-reloc.os += $(stack-protector)
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+
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+# This file is not actually part of the startup code in the nonshared
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+# case and statically linked into applications. See
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+# <https://sourceware.org/bugzilla/show_bug.cgi?id=23323>,
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+# <https://sourceware.org/ml/libc-alpha/2018-06/msg00717.html>.
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+# Also see the note above regarding STACK_PROTECTOR_LEVEL.
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+CFLAGS-elf-init.oS += $(stack-protector)
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+
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ifeq (yes,$(build-shared))
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extra-objs += S$(start-installed-name) gmon-start.os
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ifneq ($(start-installed-name),$(static-start-installed-name))
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