Changes in ldscript.powerpc

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-13.1/sys/conf/ldscript.powerpc

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-13.1/sys/conf/ldscript.powerpc

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-13.1/sys/conf/ldscript.powerpc

45eff3df - remove CONSTRUCTORS from kernel linker scripts

Thu, 28 Jul 2016 13:54:46 +0000

remove CONSTRUCTORS from kernel linker scriptsThe linker script CONSTRUCTORS keyword is only meaningful "when linkingobject file formats which do not support arbitrary sections, such asECOFF and XCOFF"[1] and is ignored for other object file formats.LLVM's lld does not yet accept (and ignore) CONSTRUCTORS, so just removeCONSTRUCTORS from the linker scripts as it has no effect.[1] https://sourceware.org/binutils/docs/ld/Output-Section-Keywords.htmlReviewed by: kibSponsored by: The FreeBSD FoundationDifferential Revision: https://reviews.freebsd.org/D7343 List of files: /freebsd-13.1/sys/conf/ldscript.powerpc

bb808254 - Refactor PowerPC (especially AIM) init sequence to be less baroque.

Sun, 18 Jan 2015 18:32:43 +0000

Refactor PowerPC (especially AIM) init sequence to be less baroque.MFC after: 2 months List of files: /freebsd-13.1/sys/conf/ldscript.powerpc

66c80959 - Rename elf-powerpc into elf-powerpc-freebsd in binutils

Fri, 10 Oct 2014 06:24:09 +0000

Rename elf*-powerpc into elf*-powerpc-freebsd in binutilsThe powerpc support was the only supported architecture not prepending the elf format namewith "-freebsd" in base this change makes it consistent with other architectures.On newer version of binutils the powerpc format is also prepended with "-freebsd".Also modify the kernel ldscripts in that regards.As a result it is now possible cross build the kernel on powerpc using newer binutilsDifferential Revision: https://reviews.freebsd.org/D926Differential Revision: https://reviews.freebsd.org/D928 List of files: /freebsd-13.1/sys/conf/ldscript.powerpc

6ba63f2d - In fact, we don't need any of these __DYNAMIC. it is a.out leftover and commented out.

Thu, 20 Jan 2011 19:24:50 +0000

In fact, we don't need any of these __DYNAMIC. it is a.out leftover and commented out. List of files: /freebsd-13.1/sys/conf/ldscript.powerpc

8678a430 - Avoid hardcoding the kernel link address in the linker script.

Wed, 27 Feb 2008 00:03:23 +0000

Avoid hardcoding the kernel link address in the linker script.Use KERNBASE instead. While here, move the text sectionsforward to the beginning of the text segment. List of files: /freebsd-13.1/sys/conf/ldscript.powerpc

f379be7a - Page align the data segment.

Mon, 08 Oct 2001 10:43:34 +0000

Page align the data segment. List of files: /freebsd-13.1/sys/conf/ldscript.powerpc

c585bae1 - The final commit for the first phase of PowerPC support.

Sun, 17 Jun 2001 09:39:44 +0000

The final commit for the first phase of PowerPC support.This adds the config stuff needed to build kernels.Reviewed by: obrien List of files: /freebsd-13.1/sys/conf/ldscript.powerpc

d0e12656 - Add $FreeBSD$

Tue, 11 Jan 2000 15:35:16 +0000

Add $FreeBSD$Make the alpha linker script more like the i386 version - delete the/usr/local and egcs directories List of files: /freebsd-13.1/sys/conf/ldscript.powerpc

8a7b9180 - Lots of changes, including:

Mon, 10 Aug 1998 07:53:59 +0000

Lots of changes, including:* Support for AlphaStation 200, 250, 255, 400* Untested support for UDB, Multia, AXPpci33 (Noname)* Support for Personal Workstation 433a/433au, 500a/500au, 600a/600au (Miata)* Some minor fixes and improvements to interrupt handling.Submitted by: Andrew Gallatin (AS200, Miata)Obtained from: NetBSD (some code for AS200, Miata, Noname) List of files: /freebsd-13.1/sys/conf/ldscript.powerpc

82153dc2 - Change load address to 0xfffffc0000300000 to help support AS200.

Thu, 30 Jul 1998 08:12:14 +0000

Change load address to 0xfffffc0000300000 to help support AS200. List of files: /freebsd-13.1/sys/conf/ldscript.powerpc

28c31322 - Linker script for alpha kernel.

Wed, 15 Jul 1998 19:19:24 +0000

Linker script for alpha kernel. List of files: /freebsd-13.1/sys/conf/ldscript.powerpc