62 lines
2.5 KiB
Diff
62 lines
2.5 KiB
Diff
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ADAM G. LITKE <agl@us.ibm.com> -
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Libhugetlbfs ships a set of linker scripts which can be used to enable ELF
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segment remapping into huge pages. These linker scripts
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no longer work with the version of binutils shipped with SLES11.
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This has been a known problem. Linker scripts are essentially tied to specific
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versions of binutils but libhugetlbfs only ships a single
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set. To avoid maintaining and shipping an ever-growing number of linker
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scripts, a new method of linking binaries for use with huge
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pages was developed in libhugetlbfs-2.0. Unfortunately, some customers will
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likely continue to use the old method of linking
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binaries (with the shipped linker scripts) and will experience problems. The
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solution to this problem is either to fix the linker scripts
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for SLES11 by supplying a distro-specific patch, or strip out the deprecated
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linker scripts so they cannot be used at all. I would prefer
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to fix the linker scripts (if possible) to allow customers more time to switch
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to the new linking method.
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Fix for ppc32 BDT script
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The only linker script that is known to have problems is the script used to
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place text, data, and bss into huge pages on 32bit
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PowerPC. The attached patch fixes the issue by adding the 'SPECIAL' notation
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to the .plt and .got sections which is required for
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correct functioning of the dynamic linker.
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---
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ldscripts/elf32ppclinux.xBDT | 6 ++++--
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1 file changed, 4 insertions(+), 2 deletions(-)
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--- a/ldscripts/elf32ppclinux.xBDT
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+++ b/ldscripts/elf32ppclinux.xBDT
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@@ -163,8 +163,9 @@ SECTIONS
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.got1 : { *(.got1) } :hdata
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.got2 : { *(.got2) } :hdata
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.dynamic : { *(.dynamic) } :dynamic :hdata
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- .got : { *(.got.plt .got) } :hdata
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+ .got : SPECIAL { *(.got) } :hdata
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/* . = DATA_SEGMENT_RELRO_END (0, .); */
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+ .plt : SPECIAL { *(.plt) } :hdata
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.data :
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{
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*(.data .data.* .gnu.linkonce.d.*)
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@@ -172,6 +173,7 @@ SECTIONS
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SORT(CONSTRUCTORS)
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} :hdata
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.data1 : { *(.data1) } :hdata
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+ .got : SPECIAL { *(.got) } :hdata
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/* We want the small data sections together, so single-instruction offsets
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can access them all, and initialized data all before uninitialized, so
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we can shorten the on-disk segment size. */
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@@ -190,7 +192,7 @@ SECTIONS
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*(.scommon)
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PROVIDE (__sbss_end = .); PROVIDE (___sbss_end = .);
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} :hdata
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- .plt : { *(.plt) } :hdata
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+ .plt : SPECIAL { *(.plt) } :hdata
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.bss :
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{
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*(.dynbss)
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