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From: Markus Wichmann <nullplan@gmx.net>
To: musl@lists.openwall.com
Subject: Re: [musl] Can’t build musl with lto=thin
Date: Sun, 14 Feb 2021 06:59:35 +0100	[thread overview]
Message-ID: <20210214055935.GB15987@voyager> (raw)
In-Reply-To: <65ed0ffa-fd55-da6f-fa34-001939ed36ce@decentral.ch>

On Sat, Feb 13, 2021 at 06:54:24PM +0100, Tim Tassonis wrote:
> On 2/1/21 10:20 PM, Jiahao XU wrote:
> > And if I changed puts to printf and uses -fno-builtin, it also generates
> > a 16KB executable.
>
> Strange, I get 19k without -fno-builtin and 28K with it:
>

GCC detects the use of printf() with only a constant string ending in \n
and replaces it with a call to puts(). You can see that by looking at
the disassembly, or making GCC generate the assembly.

Ciao,
Markus

      reply	other threads:[~2021-02-14  5:59 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-29 12:19 Jiahao XU
2021-01-29 20:04 ` Szabolcs Nagy
2021-01-29 20:53   ` Fangrui Song
2021-01-30 20:12 ` Rich Felker
2021-01-30 20:59   ` Леонид Юрьев (Leonid Yuriev)
     [not found]   ` <SYBP282MB020277E08EB49C9AC9BF90888AB89@SYBP282MB0202.AUSP282.PROD.OUTLOOK.COM>
2021-01-30 23:30     ` Rich Felker
     [not found]       ` <SYBP282MB0202BF16DD08A2F1537FD5428AB89@SYBP282MB0202.AUSP282.PROD.OUTLOOK.COM>
2021-01-31  5:01         ` Rich Felker
2021-01-31  5:32           ` Jiahao XU
2021-01-31 21:01             ` Rich Felker
2021-01-31 22:29               ` Jiahao XU
2021-02-01  0:22               ` Jiahao XU
2021-02-01  0:31                 ` Jiahao XU
2021-02-01  0:44                   ` Jiahao XU
2021-02-01  0:50                     ` Jiahao XU
2021-02-01 13:20                       ` Jiahao XU
2021-02-01 16:55                         ` Nick Bray
2021-02-01 17:53                   ` Rich Felker
2021-02-01 18:06                     ` Fangrui Song
2021-02-01 21:20                       ` Jiahao XU
2021-02-13 17:54                         ` Tim Tassonis
2021-02-14  5:59                           ` Markus Wichmann [this message]

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