Date: Mon, 6 May 2019 03:39:25 +0000 (UTC) From: Justin Hibbits <jhibbits@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-12@freebsd.org Subject: svn commit: r347177 - stable/12/sys/powerpc/powerpc Message-ID: <201905060339.x463dPJN008482@repo.freebsd.org>
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Author: jhibbits Date: Mon May 6 03:39:25 2019 New Revision: 347177 URL: https://svnweb.freebsd.org/changeset/base/347177 Log: MFC r344871: powerpc: Save stack pointer in savectx This allows 'show acttrace' to show backtrace on processes currently running on CPUs. Reported by: Brandon Bergren Modified: stable/12/sys/powerpc/powerpc/swtch32.S stable/12/sys/powerpc/powerpc/swtch64.S Directory Properties: stable/12/ (props changed) Modified: stable/12/sys/powerpc/powerpc/swtch32.S ============================================================================== --- stable/12/sys/powerpc/powerpc/swtch32.S Mon May 6 03:35:44 2019 (r347176) +++ stable/12/sys/powerpc/powerpc/swtch32.S Mon May 6 03:39:25 2019 (r347177) @@ -195,6 +195,7 @@ ENTRY(savectx) stmw %r12,PCB_CONTEXT(%r3) /* Save the non-volatile GP regs */ mfcr %r4 /* Save the condition register */ stw %r4,PCB_CR(%r3) + stw %r1,PCB_SP(%r3) /* Save the stack pointer */ mflr %r4 /* Save the link register */ stw %r4,PCB_LR(%r3) blr Modified: stable/12/sys/powerpc/powerpc/swtch64.S ============================================================================== --- stable/12/sys/powerpc/powerpc/swtch64.S Mon May 6 03:35:44 2019 (r347176) +++ stable/12/sys/powerpc/powerpc/swtch64.S Mon May 6 03:39:25 2019 (r347177) @@ -276,6 +276,7 @@ ENTRY(savectx) mfcr %r4 /* Save the condition register */ std %r4,PCB_CR(%r3) + std %r1,PCB_SP(%r3) /* Save the stack pointer */ std %r2,PCB_TOC(%r3) /* Save the TOC pointer */ mflr %r4 /* Save the link register */ std %r4,PCB_LR(%r3)
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