ld: testsuite: xfail ld-elf/compress1a etc. on Solaris/sparcv9 [PR25802]

ld: testsuite: xfail ld-elf/compress1a etc. on Solaris/sparcv9 [PR25802]

A couple of tests FAIL on Solaris/sparcv9:

FAIL: ld-elf/compress1a
FAIL: ld-elf/compressed1a
FAIL: ld-elf/eh5
FAIL: --gc-sections with multiple debug sections for a function section

The symptom is always similar:

compress1.o:(.debug_info+0x10): relocation truncated to fit: R_SPARC_UA32 against `.text'
eh5.o:(.eh_frame+0x3e): relocation truncated to fit: R_SPARC_UA32 against symbol `my_personality_v0' defined in .text section in eh5.o
all-debug-sections.o: in function `debug_info_main':
(.debug_info.text.main+0x4): relocation truncated to fit: R_SPARC_32 against symbol `main' defined in .text.main section in all-debug-sections.o

With the default Solaris/sparcv9 text address of 0x100000000, the
relocations are out of the 32-bit range of R_SPARC_UA32 resp. R_SPARC_32,
so the "relocation truncated to fit" errors are benign.

One could avoid those by linking the affected tests with -Ttext=0x80000000,
matching Solaris /usr/lib/ld/map.below4G, but that doesn't reflect real
usage.  Therefore this patch xfail's those tests.

Tested on sparcv9-sun-solaris2.11, sparc-sun-solaris2.11, and
x86_64-pc-linux-gnu.

2025-07-30  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	ld:
	PR ld/25802
	* testsuite/ld-elf/compress1a.d: xfail on sparcv9-*-solaris2*.
	* testsuite/ld-elf/compressed1a.d: Likewise.
	* testsuite/ld-elf/eh5.d: Likewise.
	* testsuite/ld-gc/all-debug-sections.d: Likewise.