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Message-ID: <063D6719AE5E284EB5DD2968C1650D6D1CAE3325@AcuExch.aculab.com> Date: Fri, 13 Feb 2015 11:20:47 +0000 From: David Laight <David.Laight@...LAB.COM> To: 'Rasmus Villemoes' <linux@...musvillemoes.dk>, Mark Rustad <mrustad@...il.com> CC: "Rustad, Mark D" <mark.d.rustad@...el.com>, Stanislaw Gruszka <sgruszka@...hat.com>, Kalle Valo <kvalo@...eaurora.org>, "linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>, "netdev@...r.kernel.org" <netdev@...r.kernel.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org> Subject: RE: [PATCH] iwl4965: Enable checking of format strings From: Rasmus Villemoes > Well, probably the linker is allowed to overlap "anonymous" objects > (string literals) with whatever const char[] (or indeed any const) > object it finds containing the appropriate byte sequence. But I think > language lawyers would insist that for > > const char foo[] = "a string"; > const char bar[] = "a string"; A quick test shows those are separate strings. But 'const char *foo = "xxx";' will share. You also need -O1 to get the strings into .rodata.str.n so that the linker can merge them. David -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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