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authorTomoaki Kawada <kawada@kmckk.co.jp>2022-06-16 09:54:30 +0000
committerAlan Modra <amodra@gmail.com>2022-06-18 20:11:23 +0930
commitfba1ac87dcb76e61f270d236f1e7c8aaec80f9c4 (patch)
tree4122da4e90d8f5897cec0d8719132794548883de /ld/testsuite/ld-elf
parent3f52a09075e3c62f2150375bb7fca338e7db45e7 (diff)
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Fix the sorting algorithm for reloc entries
The optimized insertion sort algorithm in `elf_link_adjust_relocs` incorrectly assembled "runs" from unsorted entries and inserted them to an already-sorted prefix, breaking the loop invariants of insertion sort. This commit updates the run assembly loop to break upon encountering a non-monotonic change in the sort key. PR 29259 bfd/ * elflink.c (elf_link_adjust_relocs): Ensure run being inserted is sorted. ld/ * testsuite/ld-elf/pr29259.d, * testsuite/ld-elf/pr29259.s, * testsuite/ld-elf/pr29259.t: New test.
Diffstat (limited to 'ld/testsuite/ld-elf')
-rw-r--r--ld/testsuite/ld-elf/pr29259.d13
-rw-r--r--ld/testsuite/ld-elf/pr29259.s14
-rw-r--r--ld/testsuite/ld-elf/pr29259.t4
3 files changed, 31 insertions, 0 deletions
diff --git a/ld/testsuite/ld-elf/pr29259.d b/ld/testsuite/ld-elf/pr29259.d
new file mode 100644
index 0000000..c7eaa7a
--- /dev/null
+++ b/ld/testsuite/ld-elf/pr29259.d
@@ -0,0 +1,13 @@
+#ld: -r -T pr29259.t
+#readelf: -Wr
+
+Relocation section .*
+ +Offset +Info +Type .*
+0+00 .*
+#...
+0+20 .*
+#...
+0+40 .*
+#...
+0+60 .*
+#pass
diff --git a/ld/testsuite/ld-elf/pr29259.s b/ld/testsuite/ld-elf/pr29259.s
new file mode 100644
index 0000000..65fc73f
--- /dev/null
+++ b/ld/testsuite/ld-elf/pr29259.s
@@ -0,0 +1,14 @@
+ .data
+.L1:
+ .section ".data.1", "aw", %progbits
+ .p2align 5
+ .dc.a .L1
+ .section ".data.2", "aw", %progbits
+ .p2align 5
+ .dc.a .L1
+ .section ".data.3", "aw", %progbits
+ .p2align 5
+ .dc.a .L1
+ .section ".data.4", "aw", %progbits
+ .p2align 5
+ .dc.a .L1
diff --git a/ld/testsuite/ld-elf/pr29259.t b/ld/testsuite/ld-elf/pr29259.t
new file mode 100644
index 0000000..ed80f87
--- /dev/null
+++ b/ld/testsuite/ld-elf/pr29259.t
@@ -0,0 +1,4 @@
+SECTIONS
+{
+ .data : { *(.data.1) *(.data.4) *(.data.3) *(.data.2) *(.data) }
+}