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No PT_INTERP when .interp is zero size

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Some targets don't set a default interpreter, resulting in an empty
.interp section unless --dynamic-linker is passed to ld.  A PT_INTERP
without a path is rather useless.

The testsuite change fixes a failure on microblaze-linux.

bfd/
	* elf.c (get_program_header_size): Don't count PT_INTERP if
	.interp is empty.
	(_bfd_elf_map_sections_to_segments): Don't create PT_INTERP if
	.interp is empty.
ld/
	* testsuite/ld-elf/pr22423.d: Pass --dynamic-linker to ld.
This commit is contained in:
Alan Modra
2018-10-06 00:05:51 +09:30
parent e0c3dfa2ee
commit 1b9e270b09
4 changed files with 14 additions and 3 deletions
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4
ld/ChangeLog
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@@ -1,3 +1,7 @@
2018-10-08 Alan Modra <amodra@gmail.com>
* testsuite/ld-elf/pr22423.d: Pass --dynamic-linker to ld.
2018-10-05 Richard Henderson <rth@twiddle.net>
* testsuite/ld-or1k/or1k.exp: Add test cases for plt generation.

2
ld/testsuite/ld-elf/pr22423.d
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@@ -1,6 +1,6 @@
#source: start.s
#readelf: -l -W
#ld: -pie
#ld: -pie --dynamic-linker=/usr/lib/ld.so.1
#target: *-*-linux* *-*-gnu* arm*-*-uclinuxfdpiceabi
#...