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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 /ld
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 'ld')
-rw-r--r--ld/ChangeLog7
-rw-r--r--ld/testsuite/ld-xtensa/relax-loc.d7
-rw-r--r--ld/testsuite/ld-xtensa/relax-loc.s15
-rw-r--r--ld/testsuite/ld-xtensa/xtensa.exp1
4 files changed, 30 insertions, 0 deletions
diff --git a/ld/ChangeLog b/ld/ChangeLog
index 341ad1d..77551f0 100644
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,3 +1,10 @@
+2020-04-22 Max Filippov <jcmvbkbc@gmail.com>
+
+ PR ld/25861
+ * 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.
+
2020-04-22 Fangrui Song <maskray@google.com>
PR ld/25806
diff --git a/ld/testsuite/ld-xtensa/relax-loc.d b/ld/testsuite/ld-xtensa/relax-loc.d
new file mode 100644
index 0000000..3c8d673
--- /dev/null
+++ b/ld/testsuite/ld-xtensa/relax-loc.d
@@ -0,0 +1,7 @@
+#as: --text-section-literals
+#ld:
+#objdump: --dwarf=decodedline
+#...
+relax-loc.s[ ]+1[ ]+0x400054[ ]+.*
+relax-loc.s[ ]+2[ ]+0x40005c[ ]+.*
+#...
diff --git a/ld/testsuite/ld-xtensa/relax-loc.s b/ld/testsuite/ld-xtensa/relax-loc.s
new file mode 100644
index 0000000..d768470
--- /dev/null
+++ b/ld/testsuite/ld-xtensa/relax-loc.s
@@ -0,0 +1,15 @@
+ .file 1 "relax-loc.s"
+ .globl _start
+ .globl _ResetVector
+ .text
+_ResetVector:
+_start:
+ .loc 1 1
+ j 1f
+ .literal_position
+1:
+ .loc 1 2
+
+ .rep 10000
+ movi a2, 0x12345678
+ .endr
diff --git a/ld/testsuite/ld-xtensa/xtensa.exp b/ld/testsuite/ld-xtensa/xtensa.exp
index 9b2235b..de39887 100644
--- a/ld/testsuite/ld-xtensa/xtensa.exp
+++ b/ld/testsuite/ld-xtensa/xtensa.exp
@@ -27,6 +27,7 @@ run_dump_test "call_overflow"
run_dump_test "coalesce"
run_dump_test "diff_overflow"
run_dump_test "lcall"
+run_dump_test "relax-loc"
run_dump_test "relax-static-pie"
run_dump_test "relax-static-local-pie"