Allow sigreturn syscall
Allow sigreturn syscall

This is used on some 32 bit architectures, eg x86

Signed-off-by: Justin Cormack <af64ee19f04db9509cb02b0e470e11e5402ef9b3@unikernel.com>

bearstech/moby,cyli/docker,yummypeng/docker,JMesser81/docker,containers/storage,sallyom/docker,13W/docker,msabansal/docker,dongjoon-hyun/docker,shin-/docker.github.io,cyphar/docker,TrumanLing/docker,sanjeo/docker,jzwlqx/denverdino.github.io,afein/docker,hustcat/docker,BrianBland/docker,konstruktoid/docker-1,resin-io/docker,troy0820/docker.github.io,thaJeztah/docker,Test-Betta-Inc/psychic-barnacle,mahak/docker,PatrickLang/moby,luxas/docker,tpounds/docker,msabansal/docker,laijs/docker,Ramzec/docker,denverdino/denverdino.github.io,phiroict/docker,BSWANG/denverdino.github.io,catinthesky/docker,diogomonica/docker,unclejack/docker,nghiant2710/docker,tonistiigi/docker,alexisbellido/docker.github.io,vincentwoo/docker,HuKeping/docker,moypray/docker,kolyshkin/docker,achanda/docker,jlhawn/docker,paralin/docker,bonczj/moby-json-file-logger,johnstep/docker.github.io,asbjornenge/docker,danix800/docker.github.io,sterchelen/docker,nghiant2710/docker,eskaaren/docker,containers/storage,denverdino/denverdino.github.io,medallia/docker,sfsmithcha/docker,hypriot/docker,mtanlee/docker,YujiOshima/docker,gigidwan/docker,ailispaw/docker,icaoweiwei/docker,dperny/docker,jzwlqx/denverdino.github.io,moypray/docker,lixiaobing1/docker,crosbymichael/docker,bearstech/moby,DoraALin/docker,sdurrheimer/docker,londoncalling/docker.github.io,jhorwit2/docker,sean-jc/docker,miminar/docker,konstruktoid/docker-upstream,docker/docker.github.io,dmcgowan/docker,anortef/docker,cnaize/docker,srust/docker,ColinHebert/docker,tagomoris/docker,shubheksha/docker.github.io,geekylucas/docker,denverdino/denverdino.github.io,allencloud/docker,HideoYamauchi/docker,docker/docker.github.io,KingEmet/docker,mahak/docker,konstruktoid/docker-1,danyalKhaliq10p/moby,laijs/moby,jecarey/docker,raja-sami-10p/moby,konstruktoid/docker-upstream,erikh/docker,brahmaroutu/docker,phiroict/docker,denverdino/denverdino.github.io,13W/docker,xiaods/docker,dccurtis/docker,sarnautov/moby,jongiddy/docker,sunyuan3/docker,docker/docker,yongtang/docker,imeoer/hypercli,johnstep/docker.github.io,BrianBland/docker,rillig/docker.github.io,tmp6154/docker,splunk/docker,prertik/docker,naveed-jamil-tenpearls/moby,projectatomic/docker,tmp6154/docker,HackToday/docker,endophage/docker,mikebrow/docker,menglingwei/denverdino.github.io,dims/docker,cnaize/docker,carolfh/docker,srust/docker,madhanrm/docker,stevvooe/docker,ZJUshuaizhou/docker,shubheksha/docker.github.io,maxamillion/docker,michael-holzheu/docker,hyperhq/hypercli,splunk/docker,haveatry/docker,alexisbellido/docker.github.io,sheimi/docker,rillig/docker.github.io,johnstep/moby-moby,shubheksha/docker.github.io,medallia/docker,thaJeztah/docker,14rcole/docker,jloehel/docker,ColinHebert/docker,jhorwit2/docker,joeuo/docker.github.io,upmio/docker,mbanikazemi/docker,tianon/docker,gdevillele/docker.github.io,q384566678/docker,swasd/baleno,djs55/docker,Mashimiao/docker,wenchma/docker,sfsmithcha/docker,twaugh/docker,JeffBellegarde/docker,hypriot/docker,JimGalasyn/docker.github.io,cmehay/docker-1,pradipd/moby,ibuildthecloud/docker,anweiss/docker.github.io,JeffBellegarde/docker,dsau/docker,jlebon/docker,hyperhq/hypercli,arun-gupta/docker,docker/docker.github.io,yongtang/docker,aduermael/docker.github.io,mkumatag/docker,yosifkit/docker,Morsicus/docker,msabansal/docker,fangyuan930917/docker,mssola/docker,nalind/docker,portworx/docker,coreos/docker,KarthikNayak/docker,swasd/baleno,JimGalasyn/docker.github.io,aidanhs/docker,haveatry/docker,joaofnfernandes/docker.github.io,mssola/docker,cmehay/docker-1,tophj-ibm/moby,Altiscale/docker,izarov/docker,docker/docker,yasiramin10p/moby,solganik/docker,x1022as/docker,kerneltime/docker,rhatdan/docker,danix800/docker.github.io,fangyuan930917/docker,mahak/docker,paralin/docker,shubheksha/docker.github.io,sanscontext/docker.github.io,londoncalling/docker.github.io,Altiscale/docker,achanda/docker,djs55/docker,mssola/docker,jc-m/docker,bluebreezecf/docker,yasiramin10p/moby,stainboy/docker,liaoqingwei/docker,gdevillele/docker.github.io,hqhq/moby,jvanz/docker,SaiedKazemi/docker,jc-m/docker,wenchma/docker,mbanikazemi/docker,resin-io/docker,Mashimiao/docker,dgageot/docker,kunalkushwaha/docker,prertik/docker,q384566678/docker,KingEmet/docker,q384566678/docker,HuKeping/docker,vdemeester/docker,ckeyer/docker,pradipd/moby,isubuz/docker,lixiaobing10051267/docker,tkopczynski/docker,twaugh/docker,BSWANG/denverdino.github.io,docker/docker,fsoppelsa/docker,jthelin/docker,alfred-landrum/docker,ibuildthecloud/docker,laijs/docker,darrenstahlmsft/moby,sanscontext/docker.github.io,containers/storage,YuPengZTE/docker,tophj-ibm/moby,icaoweiwei/docker,willmtemple/docker,michael-holzheu/docker,Tenk42/docker,denverdino/denverdino.github.io,erikstmartin/docker,sunyuan3/docker,brahmaroutu/docker,sarnautov/moby,cyli/docker,sheimi/docker,ffoysal/docker,yummypeng/docker,flavio/docker,cloudflare/docker,portworx/docker,errordeveloper/docker,YujiOshima/docker,kimh/docker,mtrmac/docker,xiekeyang/docker,BrianBland/docker,harche/docker,gschaetz/moby,estesp/docker,shhsu/docker,luxas/docker,crosbymichael/docker,whuwxl/docker,anweiss/docker.github.io,nalind/docker,yosifkit/docker,hqhq/moby,londoncalling/docker.github.io,x1022as/docker,haveatry/docker,michelvocks/docker,skatsuta/docker,dperny/docker,anortef/docker,BenHall/docker,yp-engineering/docker,shishir-a412ed/docker,shin-/docker.github.io,moul/docker,moul/docker,gjaskiewicz/moby,sdurrheimer/docker,hyperhq/hypercli,imkin/moby,gjaskiewicz/moby,Mokolea/docker,yosifkit/docker,Ramzec/docker,diogomonica/docker,akira-baruah/docker,Mokolea/docker,akira-baruah/docker,Ramzec/docker,xuxinkun/docker,gao-feng/docker,denverdino/docker.github.io,mtesselH/docker,Shopify/docker,anortef/docker,dccurtis/docker,endocode/docker,dgageot/docker,arun-gupta/docker,pramodhkp/moby,imeoer/hypercli,qudongfang/docker,sheimi/docker,gdevillele/docker.github.io,gdevillele/docker.github.io,mstanleyjones/docker,duglin/docker,endophage/docker,trebonian/docker,endophage/docker,shin-/docker.github.io,JeffBellegarde/docker,izarov/docker,moul/docker,pramodhkp/moby,Morsicus/docker,jwhonce/docker,zhangjianfnst/docker,gnailuy/docker,joaofnfernandes/docker.github.io,skatsuta/docker,isubuz/docker,sunyuan3/docker,ailispaw/docker,SaiedKazemi/docker,kolyshkin/moby,contiv/docker,ibuildthecloud/docker,davinashreddy/docker,cnaize/docker,docker-zh/docker.github.io,jimjag/docker,dims/docker,trebonian/docker,mike1729/docker,ZJU-SEL/docker,danyalKhaliq10p/moby,moby/moby,danix800/docker.github.io,Jimmy-Xu/hypercli,splunk/docker,yp-engineering/docker,imkin/moby,nalind/docker,charleswhchan/docker,moypray/docker,sdurrheimer/docker,kencochrane/docker,dims/docker,justyntemme/docker,mgoelzer/docker,lixiaobing1/docker,ndeloof/docker,nghiant2710/docker,konstruktoid/docker-1,hallyn/docker,willmtemple/docker,twaugh/docker,kolyshkin/moby,medallia/docker,cr7pt0gr4ph7/docker,Syntaxide/docker,resin-io/docker,thtanaka/docker,mixja/docker,cpuguy83/docker,jthelin/docker,14rcole/docker,gjaskiewicz/moby,gigidwan/docker,runcom/docker,izarov/docker,mtrmac/docker,13W/docker,Jimmy-Xu/hypercli,rillig/docker.github.io,rremer/moby,charleszheng44/moby,rhardih/docker,mohmost12/docker,madhanrm/docker,amatsus/docker,gschaetz/moby,arun-gupta/docker,rhatdan/storage,justincormack/docker,anweiss/docker.github.io,Syntaxide/docker,mikebrow/docker,ZJUshuaizhou/docker,diogomonica/docker,michael-holzheu/docker,jameszhan/docker,gnailuy/docker,abhinavdahiya/docker,ncdc/docker,projectatomic/docker,joeuo/docker.github.io,mkumatag/docker,Test-Betta-Inc/psychic-barnacle,michelvocks/docker,bdwill/docker.github.io,isubuz/docker,estesp/docker,supasate/docker,londoncalling/docker.github.io,noironetworks/docker,mtrmac/docker,toli/docker,joaofnfernandes/docker.github.io,harche/docker,scollier/docker,dnephin/docker,dccurtis/docker,vincentwoo/docker,scotttlin/docker,hallyn/docker,paralin/docker,HackToday/docker,dnephin/docker,YujiOshima/docker,KarthikNayak/docker,darrenstahlmsft/moby,icecrime/docker,OnePaaS/docker,JimGalasyn/docker.github.io,ncdc/docker,naveed-jamil-tenpearls/moby,jimjag/docker,TrumanLing/docker,docker/docker.github.io,AkihiroSuda/docker,pyotr777/docker,PatrickLang/moby,lixiaobing10051267/docker,asbjornenge/docker,thtanaka/docker,catinthesky/docker,erikstmartin/docker,phiroict/docker,michelvocks/docker,dsheets/moby,DoraALin/docker,LuisBosquez/docker.github.io,docker-zh/docker.github.io,dsau/docker,tklauser/docker,moby/moby,nguyentm83/docker,konstruktoid/docker-upstream,sean-jc/docker,sterchelen/docker,thaJeztah/docker.github.io,vdemeester/docker,zhuguihua/docker,nguyentm83/docker,BenHall/docker,kolyshkin/docker,moby/moby,BSWANG/denverdino.github.io,HackToday/docker,jecarey/docker,cyli/docker,dongjoon-hyun/docker,mstanleyjones/docker,inatatsu/docker,TheBigBear/docker,umerazad/docker,xiekeyang/docker,mstanleyjones/docker,denverdino/docker.github.io,menglingwei/denverdino.github.io,imkin/moby,bfirsh/docker,pecameron/docker,rremer/moby,rkazak/docker,AkihiroSuda/docker,whuwxl/docker,rancher/docker,jzwlqx/denverdino.github.io,stainboy/docker,miminar/docker,mtesselH/docker,duglin/docker,hustcat/docker,darrenstahlmsft/docker,sanjeo/docker,dmcgowan/docker,menglingwei/denverdino.github.io,unclejack/docker,aditirajagopal/docker,whuwxl/docker,cpuguy83/docker,johnstep/docker.github.io,nawawi/docker,darrenstahlmsft/moby,hqhq/moby,ajaymdesai/docker,HideoYamauchi/docker,errordeveloper/docker,bdwill/docker.github.io,imeoer/hypercli,YuPengZTE/docker,anweiss/docker.github.io,jzwlqx/denverdino.github.io,kojiromike/docker,upmio/docker,sanjeo/docker,sterchelen/docker,joeuo/docker.github.io,noironetworks/docker,jongiddy/docker,kyle-wang/docker,ivansaracino/docker,tkopczynski/docker,LuisBosquez/docker.github.io,jvanz/docker,sanscontext/docker.github.io,kojiromike/docker,jimjag/docker,tklauser/docker,raja-sami-10p/moby,gao-feng/docker,shishir-a412ed/docker,LuisBosquez/docker.github.io,SvenDowideit/docker,jloehel/docker,13W/docker,cyphar/docker,darrenstahlmsft/docker,shhsu/docker,troy0820/docker.github.io,eskaaren/docker,aduermael/docker.github.io,rremer/moby,miminar/docker,bfirsh/docker,laijs/docker,solganik/docker,amatsus/docker,fcrisciani/docker,Microsoft/docker,Shopify/docker,xiaods/docker,noxiouz/docker,KingEmet/docker,LaynePeng/docker,rkazak/docker,cloudflare/docker,charleswhchan/docker,mathewkoshy493/docker,kerneltime/docker,cyphar/docker,rancher/docker,maxamillion/docker,runcom/docker,LuisBosquez/docker.github.io,rhatdan/storage,ZJUshuaizhou/docker,paralin/docker,mike1729/docker,dsheets/moby,zhangjianfnst/docker,AkihiroSuda/docker,eskaaren/docker,ripcurld0/moby,achanda/docker,Collinux/docker,nawawi/docker,kencochrane/docker,aditirajagopal/docker,cr7pt0gr4ph7/docker,mathewkoshy493/docker,xiekeyang/docker,zhuguihua/docker,skatsuta/docker,liaoqingwei/docker,endocode/docker,AkihiroSuda/docker,johnstep/docker.github.io,pramodhkp/moby,ibuildthecloud/docker,mgoelzer/docker,HuKeping/docker,mgoelzer/docker,naveed-jamil-tenpearls/moby,alfred-landrum/docker,laijs/moby,jimjag/docker,alexisbellido/docker.github.io,justyntemme/docker,yosifkit/docker,BSWANG/denverdino.github.io,kencochrane/docker,nigelpoulton/docker,justincormack/docker,nigelpoulton/docker,projectatomic/docker,joaofnfernandes/docker.github.io,csfrancis/docker,POLJM242/docker,djs55/docker,catinthesky/docker,dongjoon-hyun/docker,yongtang/docker,flavio/docker,Microsoft/docker,troy0820/docker.github.io,LuisBosquez/docker.github.io,aidanhs/docker,danyalKhaliq10p/moby,ckeyer/docker,trebonian/docker,cloudflare/docker,ripcurld0/moby,TrumanLing/docker,mohmost12/docker,KarthikNayak/docker,gnailuy/docker,thtanaka/docker,ZJU-SEL/docker,harche/docker,Collinux/docker,mbanikazemi/docker,supasate/docker,stainboy/docker,alexisbellido/docker.github.io,charleszheng44/moby,estesp/docker,rillig/docker.github.io,allencloud/docker,dgageot/docker,noxiouz/docker,mtanlee/docker,gnailuy/docker,pecameron/docker,phiroict/docker,csfrancis/docker,kyle-wang/docker,abhinavdahiya/docker,SvenDowideit/docker,hallyn/docker,amatsus/docker,ndeloof/docker,noironetworks/docker,ailispaw/docker,stevvooe/docker,erikh/docker,docker-zh/docker.github.io,coolljt0725/docker,wenchma/docker,anweiss/docker.github.io,shin-/docker.github.io,sanscontext/docker.github.io,icaoweiwei/docker,toli/docker,DoraALin/docker,bonczj/moby-json-file-logger,shishir-a412ed/docker,YuPengZTE/docker,bearstech/moby,danix800/docker.github.io,alexisbellido/docker.github.io,davinashreddy/docker,Tenk42/docker,qudongfang/docker,Mokolea/docker,coolljt0725/docker,joeuo/docker.github.io,carolfh/docker,vijaykilari/docker,aduermael/docker.github.io,tonistiigi/docker,asbjornenge/docker,tpounds/docker,thaJeztah/docker.github.io,scotttlin/docker,jameszhan/docker,troy0820/docker.github.io,mkumatag/docker,johnstep/docker.github.io,ColinHebert/docker,kunalkushwaha/docker,maxamillion/docker,vincentwoo/docker,endocode/docker,willmtemple/docker,bdwill/docker.github.io,thaJeztah/docker,Tenk42/docker,yummypeng/docker,bluebreezecf/docker,Jimmy-Xu/hypercli,mikebrow/docker,joaofnfernandes/docker.github.io,yasiramin10p/moby,aaronlehmann/docker,flavio/docker,shin-/docker.github.io,jongiddy/docker,mikedougherty/docker,dperny/docker,ndeloof/docker,OnePaaS/docker,umerazad/docker,ncdc/docker,nigelpoulton/docker,konstruktoid/docker-upstream,thaJeztah/docker,nalind/docker,Syntaxide/docker,jwhonce/docker,gigidwan/docker,jc-m/docker,Altiscale/docker,ajaymdesai/docker,tophj-ibm/docker,tophj-ibm/docker,unclejack/docker,fsoppelsa/docker,scollier/docker,allencloud/docker,docker/docker.github.io,shhsu/docker,umerazad/docker,vijaykilari/docker,brahmaroutu/docker,docker-zh/docker.github.io,rhatdan/storage,Collinux/docker,PatrickLang/moby,stevvooe/docker,toli/docker,afein/docker,gschaetz/moby,LaynePeng/docker,contiv/docker,JimGalasyn/docker.github.io,Ramzec/docker,POLJM242/docker,moxiegirl/docker,duglin/docker,carolfh/docker,csfrancis/docker,ripcurld0/moby,moxiegirl/docker,jlebon/docker,denverdino/docker.github.io,tkopczynski/docker,docker-zh/docker.github.io,denverdino/docker.github.io,pyotr777/docker,ffoysal/docker,coreos/docker,trebonian/docker,lixiaobing10051267/docker,rancher/docker,BenHall/docker,thaJeztah/docker.github.io,sallyom/docker,menglingwei/denverdino.github.io,contiv/docker,anujbahuguna/docker,johnstep/moby-moby,ibuildthecloud/docker,coolljt0725/docker,geekylucas/docker,coreos/docker,raja-sami-10p/moby,laijs/moby,jwhonce/docker,kojiromike/docker,vijaykilari/docker,jlhawn/docker,thaJeztah/docker.github.io,cpuguy83/docker,x1022as/docker,phiroict/docker,pradipd/moby,cr7pt0gr4ph7/docker,sean-jc/docker,luxas/docker,hustcat/docker,aaronlehmann/docker,icecrime/docker,jlhawn/docker,cmehay/docker-1,charleszheng44/moby,tagomoris/docker,fcrisciani/docker,kerneltime/docker,ckeyer/docker,aidanhs/docker,bearstech/moby,prertik/docker,jlebon/docker,mike1729/docker,cpuguy83/docker,Mashimiao/docker,johnstep/moby-moby,upmio/docker,runcom/docker,tophj-ibm/docker,mixja/docker,sallyom/docker,aditirajagopal/docker,bdwill/docker.github.io,davinashreddy/docker,madhanrm/docker,zhuguihua/docker,vdemeester/docker,lixiaobing1/docker,mikedougherty/docker,jvanz/docker,13W/docker,HideoYamauchi/docker,JMesser81/docker,tophj-ibm/moby,LaynePeng/docker,rhatdan/docker,geekylucas/docker,sarnautov/moby,kunalkushwaha/docker,pyotr777/docker,solganik/docker,kimh/docker,dmcgowan/docker,ivansaracino/docker,inatatsu/docker,zhangjianfnst/docker,tianon/docker,Test-Betta-Inc/psychic-barnacle,kolyshkin/moby,bonczj/moby-json-file-logger,justincormack/docker,TheBigBear/docker,BSWANG/denverdino.github.io,bdwill/docker.github.io,denverdino/docker.github.io,anujbahuguna/docker,crosbymichael/docker,xuxinkun/docker,tpounds/docker,erikh/docker,icecrime/docker,xiaods/docker,jloehel/docker,scotttlin/docker,flavio/docker,qudongfang/docker,erikstmartin/docker,pecameron/docker,Microsoft/docker,Mokolea/docker,medallia/docker,errordeveloper/docker,mtesselH/docker,moby/moby,anujbahuguna/docker,nawawi/docker,xuxinkun/docker,afein/docker,mikedougherty/docker,inatatsu/docker,abhinavdahiya/docker,tagomoris/docker,mixja/docker,OnePaaS/docker,bfirsh/docker,joeuo/docker.github.io,SvenDowideit/docker,nawawi/docker,tmp6154/docker,tklauser/docker,noxiouz/docker,alfred-landrum/docker,tonistiigi/docker,srust/docker,gdevillele/docker.github.io,ivansaracino/docker,moxiegirl/docker,shubheksha/docker.github.io,mathewkoshy493/docker,portworx/docker,sanscontext/docker.github.io,fangyuan930917/docker,fsoppelsa/docker,charleswhchan/docker,JMesser81/docker,swasd/baleno,bluebreezecf/docker,supasate/docker,menglingwei/denverdino.github.io,rkazak/docker,dsau/docker,thaJeztah/docker.github.io,Morsicus/docker,fcrisciani/docker,londoncalling/docker.github.io,dnephin/docker,TheBigBear/docker,sfsmithcha/docker,ajaymdesai/docker,mahak/docker,ffoysal/docker,rhatdan/docker,gao-feng/docker,SaiedKazemi/docker,kimh/docker,liaoqingwei/docker,mohmost12/docker,rhardih/docker,aaronlehmann/docker,aduermael/docker.github.io,darrenstahlmsft/docker,jameszhan/docker,mtanlee/docker,yp-engineering/docker,hypriot/docker,dsheets/moby,jzwlqx/denverdino.github.io,kyle-wang/docker,JimGalasyn/docker.github.io,moul/docker,jhorwit2/docker,Shopify/docker,justyntemme/docker