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From: Szabolcs Nagy <nsz@port70.net>
To: musl@lists.openwall.com
Cc: Rich Felker <dalias@libc.org>,
	Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Subject: Re: undefined reference to `raise' with musl static toolchain
Date: Wed, 9 May 2018 17:24:37 +0200	[thread overview]
Message-ID: <20180509152437.GY4418@port70.net> (raw)
In-Reply-To: <20180509154407.1164eb41@windsurf.home>

* Thomas Petazzoni <thomas.petazzoni@bootlin.com> [2018-05-09 15:44:07 +0200]:
> 
> So: why does a musl-based toolchain requires an explicit -static, while
> it isn't needed with uClibc-ng ?
> 

there can be many reasons.. 

e.g. if mktime in uclibc-ng happens to reference raise then it
would get linked in independently of libgcc.

or maybe uclibc-ng has its own __aeabi_*div implementation.

or the way libgcc was configured, the raise(SIGFPE) was disabled
(it is only enabled for linux targets, but who knows how
*-linux-uclibcgnueabihf is interpreted).

you can check these using nm/objdump/readelf on libc.a and libgcc.a


  reply	other threads:[~2018-05-09 15:24 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-08 12:44 Thomas Petazzoni
2018-05-08 13:28 ` Alexander Monakov
2018-05-08 16:22 ` Markus Wichmann
2018-05-08 16:34   ` Rich Felker
2018-05-09  9:29     ` Thomas Petazzoni
2018-05-09 13:44       ` Thomas Petazzoni
2018-05-09 15:24         ` Szabolcs Nagy [this message]
2018-05-09 17:28           ` Rich Felker
2018-05-11 15:59           ` Thomas Petazzoni
2018-05-11 16:05             ` Rich Felker
2018-05-11 21:28               ` Thomas Petazzoni

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