Changes in ldscript.powerpcspe

bb5f7016 - kernel: Add defination of .init_array and .fini_array for all other platforms

Mon, 02 Sep 2024 04:26:48 +0000

kernel: Add defination of .init_array and .fini_array for all other platformsCurrently these sections are not used but defined only for amd64 andi386. Added them for all other platforms to keep all platforms in sync.There should be no functional change.This change is extracted from a bigger patch [1] of hselasky, withadditional fix for the order of .fini_array section.1. https://reviews.freebsd.org/D40467Obtained from: hselaskyMFC after: 1 weekDifferential Revision: https://reviews.freebsd.org/D45214(cherry picked from commit 3e76d05231b0aa77d922bdbc9abf62d9747a91ab) List of files: /freebsd-14.2/sys/conf/ldscript.powerpcspe

71625ec9 - sys: Remove $FreeBSD$: one-line .c comment pattern

Wed, 16 Aug 2023 17:54:24 +0000

sys: Remove $FreeBSD$: one-line .c comment patternRemove /^/[*/]\s*\$FreeBSD\$.*\n/ List of files: /freebsd-14.2/sys/conf/ldscript.powerpcspe

9411e24d - [PowerPC] kernel ifunc support for powerpc*, fix ppc64 relocation oddities.

Thu, 07 May 2020 19:32:49 +0000

[PowerPC] kernel ifunc support for powerpc*, fix ppc64 relocation oddities.This is a general cleanup of the relocatable kernel support on powerpc,needed to enable kernel ifuncs. * Fix some relocatable issues in the kernel linker, and change to using a RELOCATABLE_KERNEL #define instead of #ifdef __powerpc__ for parts that other platforms can use in the future if they wish to have ET_DYN kernels. * Get rid of the DB_STOFFS hack now that the kernel is relocated to the DMAP properly across the board on powerpc64. * Add powerpc64 and powerpc32 ifunc functionality. * Allow AIM64 virtual mode OF kernels to run from the DMAP like other AIM64 by implementing a virtual mode restart. This fixes the runtime address on PowerMac G5. * Fix symbol relocation problems on post-relocation kernels by relocating the symbol table. * Add an undocumented method for supplying kernel symbols on powernv and other powerpc machines using linux-style kernel/initrd loading -- If you pass the kernel in as the initrd as well, the copy resident in initrd will be used as a source for symbols when initializing the debugger. This method is subject to removal once we have a better way of doing this.Approved by: jhibbitsRelnotes: yesSponsored by: Tag1 Consulting, Inc.Differential Revision: https://reviews.freebsd.org/D23156 List of files: /freebsd-14.2/sys/conf/ldscript.powerpcspe

6d515b0c - powerpc: Kernel fixes for ppc32 and powerpcspe w/ lld

Thu, 14 Nov 2019 04:34:17 +0000

powerpc: Kernel fixes for ppc32 and powerpcspe w/ lldFix wrong section ordering that was causing a ".got is not contiguous withother relro sections" lld error. This also brings ldscript.powerpc andldscript.powerpcspe closer to ldscript.powerpc64.Also, remove unnecessary text relocs from the ppc32 AIM trap code.Approved by: jhibbits (mentor)Differential Revision: https://reviews.freebsd.org/D22349 List of files: /freebsd-14.2/sys/conf/ldscript.powerpcspe

74cd06b4 - Expose the kernel's build-ID through sysctl

Tue, 04 Jun 2019 13:07:10 +0000

Expose the kernel's build-ID through sysctlAfter our migration (of certain architectures) to lld the kernel is builtwith a unique build-ID. Make it available via a sysctl and uname(1) toallow the user to identify their running kernel.Submitted by: Ali Mashtizadeh MFC after: 2 weeksRelnotes: YesEvent: Waterloo Hackathon 2019Differential Revision: https://reviews.freebsd.org/D20326 List of files: /freebsd-14.2/sys/conf/ldscript.powerpcspe

dc9b124d - Create a new MACHINE_ARCH for Freescale PowerPC e500v2

Sat, 22 Oct 2016 01:57:15 +0000

Create a new MACHINE_ARCH for Freescale PowerPC e500v2Summary:The Freescale e500v2 PowerPC core does not use a standard FPU.Instead, it uses a Signal Processing Engine (SPE)--a DSP-style vector processorunit, which doubles as a FPU. The PowerPC SPE ABI is incompatible with thestock powerpc ABI, so a new MACHINE_ARCH was created to deal with this.Additionaly, the SPE opcodes overlap with Altivec, so these are mutuallyexclusive. Taking advantage of this fact, a new file, powerpc/booke/spe.c, wascreated with the same function set as in powerpc/powerpc/altivec.c, so itbecomes effectively a drop-in replacement. setjmp/longjmp were modified to savethe upper 32-bits of the now-64-bit GPRs (upper 32-bits are only accessible bythe SPE).Note: This does _not_ support the SPE in the e500v1, as the e500v1 SPE does notsupport double-precision floating point.Also, without a new MACHINE_ARCH it would be impossible to provide binarypackages which utilize the SPE.Additionally, no work has been done to support ports, work is needed for this.This also means no newer gcc can yet be used. However, gcc's powerpc supporthas been refactored which would make adding a powerpcspe-freebsd target veryeasy.Test Plan:This was lightly tested on a RouterBoard RB800 and an AmigaOne A1222(P1022-based) board, compiled against the new ABI. Base system utilities(/bin/sh, /bin/ls, etc) still function appropriately, the system is able to bootmultiuser.Reviewed By: bdrewery, impRelnotes: yesDifferential Revision: https://reviews.freebsd.org/D5683 List of files: /freebsd-14.2/sys/conf/ldscript.powerpcspe