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create-diff-object have troubles with special ELF sections #187

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marmolak opened this issue May 15, 2014 · 0 comments
Closed

create-diff-object have troubles with special ELF sections #187

marmolak opened this issue May 15, 2014 · 0 comments

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@marmolak
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Hi.

When I try to compile my patch:

...
create-diff-object:
...
readdir.o: readdir.o: changed section .rela.altinstructions not selected for inclusion
readdir.o: readdir.o: changed section .fixup not selected for inclusion
readdir.o: readdir.o: changed section .rela.fixup not selected for inclusion
readdir.o: readdir.o: changed section .rela__ex_table not selected for inclusion
readdir.o: 4 unsupported section change(s)
/usr/local/libexec/kpatch/create-diff-object: unreconcilable difference

Solution from Josh:
To fix this we need to add support for 3 special sections:
.altinstructions, .fixup, __ex_table.

For full info, please read https://www.redhat.com/archives/kpatch/2014-May/msg00000.html.
@marmolak marmolak changed the title create-diff-object issue have troubles with special ELF sections create-diff-object have troubles with special ELF sections May 15, 2014
jpoimboe added a commit to jpoimboe/kpatch that referenced this issue May 23, 2014
@jpoimboe
create-diff-object: support fixup and related sections
a605299 
Fixes dynup#187.
jpoimboe added a commit to jpoimboe/kpatch that referenced this issue May 24, 2014
@jpoimboe
create-diff-object: support fixup and related sections
b1eaa47 
Fixes dynup#187.
jpoimboe added a commit to jpoimboe/kpatch that referenced this issue May 27, 2014
@jpoimboe
create-diff-object: support fixup and related sections
8c94e67 
Fixes dynup#187.
jpoimboe added a commit to jpoimboe/kpatch that referenced this issue May 27, 2014
@jpoimboe
create-diff-object: support fixup and related sections
b639fc0 
Add support for the following sections:

- .fixup
- __ex_table
- .altinstructions
- .altinstr_replacement

Fixes dynup#187.
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@marmolak