Date: Thu, 21 May 2020 15:21:03 -0400 From: Rich Felker <dalias@...c.org> To: enh <enh@...gle.com> Cc: musl@...ts.openwall.com Subject: Re: remove SIGSTKFLT on mips? On Thu, May 21, 2020 at 09:51:29AM -0700, enh wrote: > (context: https://github.com/landley/toybox/issues/194) > > seems like musl defines SIGSTKFLT for mips as signal 7. the kernel > disagrees and says SIGEMT is 7, and that mips doesn't have a > SIGSTKFLT: > > arch/mips/include/uapi/asm/signal.h:#define SIGEMT 7 > > git blame says SIGSTKFLT was introduced in the original commit: > > commit 6315004f6102dca44c4ba50654a36967b8b9c2a6 > Author: Rich Felker <dalias@...ifal.cx> > Date: Wed Jul 11 04:22:13 2012 -0400 > > initial version of mips (o32) port, based on work by Richard > Pennington (rdp) > > basically, this version of the code was obtained by starting with > rdp's work from his ellcc source tree, adapting it to musl's build > system and coding style, auditing the bits headers for discrepencies > with kernel definitions or glibc/LSB ABI or large file issues, fixing > up incompatibility with the old binutils from aboriginal linux, and > adding some new special cases to deal with the oddities of sigaction > and pipe syscall interfaces on mips. > > at present, minimal test programs work, but some interfaces are broken > or missing. threaded programs probably will not link. I have the two attached patches pending push if there's no objection. Rich View attachment "0001-handle-possibility-that-SIGEMT-replaces-SIGSTKFLT-in.patch" of type "text/plain" (1109 bytes) View attachment "0002-fix-incorrect-SIGSTKFLT-on-all-mips-archs.patch" of type "text/plain" (1703 bytes)
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