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Add a compile-time test for PR ld/22269

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This compile-time test requires a target C compiler to run.  It fails
on many targets where ELF backend linkers fail to check undefined weak
symbol in static PIE via UNDEFWEAK_NO_DYNAMIC_RELOC.

	PR ld/22269
	* testsuite/ld-elf/pr22269-1.rd: New file.
	* testsuite/ld-elf/pr22269-1.c: Likewise.
	* testsuite/ld-elf/shared.exp: Run pr22269-1.
This commit is contained in:
H.J. Lu 2017-10-20 09:47:08 -07:00
parent d5833c62d9
commit f3012016f0
4 changed files with 33 additions and 0 deletions
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7
ld/ChangeLog
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@ -1,3 +1,10 @@
2017-10-20 H.J. Lu <hongjiu.lu@intel.com>
PR ld/22269
* testsuite/ld-elf/pr22269-1.rd: New file.
* testsuite/ld-elf/pr22269-1.c: Likewise.
* testsuite/ld-elf/shared.exp: Run pr22269-1.
2017-10-19 Palmer Dabbelt <palmer@dabbelt.com>
* emultempl/riscvelf.em (riscv_elf_before_allocation): Add a

8
ld/testsuite/ld-elf/pr22269-1.c Normal file
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@ -0,0 +1,8 @@
extern int foo __attribute ((weak));
int
_start (void)
{
if (&foo)
return foo;
}

5
ld/testsuite/ld-elf/pr22269-1.rd Normal file
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@ -0,0 +1,5 @@
# NONE relocs are not needed in a PIE.
#failif
#...
[0-9a-f]+ +[0-9a-f]+ +R_.*_NONE.*
#pass

13
ld/testsuite/ld-elf/shared.exp
View File

@ -465,6 +465,19 @@ set build_tests {
run_cc_link_tests $build_tests
run_ld_link_tests [list \
[list \
"Build pr22269-1" \
"-pie -e _start --no-dynamic-linker -z text" \
"" \
"" \
{ pr22269-1.c } \
{{readelf -rW pr22269-1.rd}} \
"pr22269-1" \
"-fPIE -O2" \
] \
]
set run_tests [list \
[list "Run normal with libfoo.so" \
"-Wl,--no-as-needed tmpdir/begin.o tmpdir/libfoo.so tmpdir/end.o" "" \