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authorMax Filippov <jcmvbkbc@gmail.com>2020-04-19 19:04:41 -0700
committerMax Filippov <jcmvbkbc@gmail.com>2020-04-22 18:46:45 -0700
commit30ce8e47fad9b057b6d7af9e1d43061126d34d20 (patch)
treef1c9ab86407f5a80c78bdf436f2178d2aacc96dd /include
parente44f65e3c5c9473d0dd98efa8c142d361b1273d7 (diff)
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xtensa: fix PR ld/25861
Introduce new relaxations XTENSA_PDIFF{8,16,32} for positive differences (subtracted symbol precedes diminished symbol) and XTENSA_NDIFF{8,16,32} for negative differences (subtracted symbol follows diminished symbol). Don't generate XTENSA_DIFF relocations in the assembler, generate XTENSA_PDIFF or XTENSA_NDIFF based on relative symbol position. Handle XTENSA_DIFF in BFD for compatibility with old object files. Handle XTENSA_PDIFF and XTENSA_NDIFF in BFD, treating difference value as unsigned. 2020-04-22 Max Filippov <jcmvbkbc@gmail.com> bfd/ * bfd-in2.h: Regenerated. * elf32-xtensa.c (elf_howto_table): New entries for R_XTENSA_PDIFF{8,16,32} and R_XTENSA_NDIFF{8,16,32}. (elf_xtensa_reloc_type_lookup, elf_xtensa_do_reloc) (relax_section): Add cases for R_XTENSA_PDIFF{8,16,32} and R_XTENSA_NDIFF{8,16,32}. * libbfd.h (bfd_reloc_code_real_names): Add names for BFD_RELOC_XTENSA_PDIFF{8,16,32} and BFD_RELOC_XTENSA_NDIFF{8,16,32}. * reloc.c: Add documentation for BFD_RELOC_XTENSA_PDIFF{8,16,32} and BFD_RELOC_XTENSA_NDIFF{8,16,32}. binutils/ * readelf.c (is_none_reloc): Recognize BFD_RELOC_XTENSA_PDIFF{8,16,32} and BFD_RELOC_XTENSA_NDIFF{8,16,32}. gas/ * config/tc-xtensa.c (md_apply_fix): Replace BFD_RELOC_XTENSA_DIFF{8,16,32} generation with BFD_RELOC_XTENSA_PDIFF{8,16,32} and BFD_RELOC_XTENSA_NDIFF{8,16,32} generation. * testsuite/gas/xtensa/loc.d: Replace BFD_RELOC_XTENSA_DIFF16 with BFD_RELOC_XTENSA_PDIFF16 in the expected output. include/ * elf/xtensa.h (elf_xtensa_reloc_type): New entries for R_XTENSA_PDIFF{8,16,32} and R_XTENSA_NDIFF{8,16,32}. ld/ * testsuite/ld-xtensa/relax-loc.d: New test definition. * testsuite/ld-xtensa/relax-loc.s: New test source. * testsuite/ld-xtensa/xtensa.exp (relax-loc): New test.
Diffstat (limited to 'include')
-rw-r--r--include/ChangeLog6
-rw-r--r--include/elf/xtensa.h6
2 files changed, 12 insertions, 0 deletions
diff --git a/include/ChangeLog b/include/ChangeLog
index 1829ec5..bf379cc 100644
--- a/include/ChangeLog
+++ b/include/ChangeLog
@@ -1,3 +1,9 @@
+2020-04-22 Max Filippov <jcmvbkbc@gmail.com>
+
+ PR ld/25861
+ * elf/xtensa.h (elf_xtensa_reloc_type): New entries for
+ R_XTENSA_PDIFF{8,16,32} and R_XTENSA_NDIFF{8,16,32}.
+
2020-04-21 Alan Modra <amodra@gmail.com>
* elf/sh.h (STO_SH5_ISA32, SHF_SH5_ISA32, SHF_SH5_ISA32_MIXED),
diff --git a/include/elf/xtensa.h b/include/elf/xtensa.h
index 2eb5e4e..bd5c80d 100644
--- a/include/elf/xtensa.h
+++ b/include/elf/xtensa.h
@@ -87,6 +87,12 @@ START_RELOC_NUMBERS (elf_xtensa_reloc_type)
RELOC_NUMBER (R_XTENSA_TLS_FUNC, 54)
RELOC_NUMBER (R_XTENSA_TLS_ARG, 55)
RELOC_NUMBER (R_XTENSA_TLS_CALL, 56)
+ RELOC_NUMBER (R_XTENSA_PDIFF8, 57)
+ RELOC_NUMBER (R_XTENSA_PDIFF16, 58)
+ RELOC_NUMBER (R_XTENSA_PDIFF32, 59)
+ RELOC_NUMBER (R_XTENSA_NDIFF8, 60)
+ RELOC_NUMBER (R_XTENSA_NDIFF16, 61)
+ RELOC_NUMBER (R_XTENSA_NDIFF32, 62)
END_RELOC_NUMBERS (R_XTENSA_max)
/* Processor-specific flags for the ELF header e_flags field. */