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From: Nicolas Pitre <nicolas.pitre@linaro.org>
To: Michal Marek <mmarek@suse.com>
Cc: linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] kbuild: cmd_export_list: tighten the sed script
Date: Wed, 16 Nov 2016 19:28:39 -0500 (EST)	[thread overview]
Message-ID: <alpine.LFD.2.20.1611161924280.22196@knanqh.ubzr> (raw)


When LTO is used, some ___ksymtab_string sections are seen by this sed
script, creating lines containing a single ) such as:

EXPORT(foo)
)
)
EXPORT(bar)

Let's make it so the + character is also required for any line to be
printed.

Signed-off-by: Nicolas Pitre <nico@linaro.org>

diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 53b43f26bb..3066c8e61d 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -428,7 +428,7 @@ endif
 
 quiet_cmd_export_list = EXPORTS $@
 cmd_export_list = $(OBJDUMP) -h $< | \
-	sed -ne '/___ksymtab/{s/.*+/$(ref_prefix)/;s/ .*/)/;p}' >$(ksyms-lds);\
+	sed -ne '/___ksymtab/s/.*+\([^ ]*\).*/$(ref_prefix)\1)/p' >$(ksyms-lds);\
 	rm -f $(dummy-object);\
 	$(AR) rcs$(KBUILD_ARFLAGS) $(dummy-object);\
 	$(LD) $(ld_flags) -r -o $@ -T $(ksyms-lds) $(dummy-object);\

             reply	other threads:[~2016-11-17  0:28 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-11-17  0:28 Nicolas Pitre [this message]
2016-12-11 10:52 ` [PATCH] kbuild: cmd_export_list: tighten the sed script Michal Marek

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