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| author | Brandon Bergren <bdragon@FreeBSD.org> | 2020-05-07 19:32:49 +0000 |
|---|---|---|
| committer | Brandon Bergren <bdragon@FreeBSD.org> | 2020-05-07 19:32:49 +0000 |
| commit | 9411e24df3c518227a10206ce2bae2e2f05a901c (patch) | |
| tree | ed809768c12b529cb0073b9a935c4a2d54cda5c4 /sys/conf/kern.pre.mk | |
| parent | f8519228d170730bac5dc3f95c38d044873d1ab2 (diff) | |
| download | src-9411e24df3c518227a10206ce2bae2e2f05a901c.tar.gz src-9411e24df3c518227a10206ce2bae2e2f05a901c.zip | |
[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: jhibbits
Relnotes: yes
Sponsored by: Tag1 Consulting, Inc.
Differential Revision: https://reviews.freebsd.org/D23156
Notes
Notes:
svn path=/head/; revision=360794
Diffstat (limited to 'sys/conf/kern.pre.mk')
| -rw-r--r-- | sys/conf/kern.pre.mk | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/conf/kern.pre.mk b/sys/conf/kern.pre.mk index 918a58b510b7..b1b01e3a2eb9 100644 --- a/sys/conf/kern.pre.mk +++ b/sys/conf/kern.pre.mk @@ -161,9 +161,9 @@ LDFLAGS+= --build-id=sha1 .endif .if (${MACHINE_CPUARCH} == "aarch64" || ${MACHINE_CPUARCH} == "amd64" || \ - ${MACHINE_CPUARCH} == "i386") && \ + ${MACHINE_CPUARCH} == "i386" || ${MACHINE} == "powerpc") && \ defined(LINKER_FEATURES) && ${LINKER_FEATURES:Mifunc} == "" -.error amd64/arm64/i386 kernel requires linker ifunc support +.error amd64/arm64/i386/ppc* kernel requires linker ifunc support .endif .if ${MACHINE_CPUARCH} == "amd64" LDFLAGS+= -z max-page-size=2097152 |