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authorXi Ruoyao <xry111@xry111.site>2024-01-23 15:59:12 +0000
committerNick Clifton <nickc@redhat.com>2024-01-23 15:59:12 +0000
commite92613559c0b9f934220d43f520d976421b24c61 (patch)
tree0006ac65f12fceb9630b5736c021031ba5554aac
parentc59f83461f407b6ad9e56e7f3391f7a0bade8549 (diff)
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[PATCH v2] gas/NEWS, ld/NEWS: Announce LoongArch changes in 2.42
-rw-r--r--gas/NEWS27
-rw-r--r--ld/NEWS11
2 files changed, 38 insertions, 0 deletions
diff --git a/gas/NEWS b/gas/NEWS
index cf4e8ff..d717a43 100644
--- a/gas/NEWS
+++ b/gas/NEWS
@@ -66,6 +66,33 @@ Changes in 2.42:
* The BPF assembler now allows using both hash (#) and double slash (//) to
begin line comments.
+* Add support for LoongArch v1.10 new instructions: estimated reciprocal
+ instructions, sub-word atomic instructions, atomic CAS instructions,
+ 16-byte store-conditional instruction, load-linked instructions with
+ acquire semantics, and store-conditional instructions with release
+ semantics.
+
+* The %call36 relocation operator, along with the pseudo-instructions
+ call36 and tail36, are now usable with the LoongArch "medium" code
+ model, allowing text sections up to 128 GiB.
+
+* TLS descriptors (TLSDESC) are now supported on LoongArch. This includes
+ the following new relocation operators: %desc_pc_hi20, %desc_pc_lo12,
+ %desc_ld, and %desc_call, and the la.tls.desc pseudo-instruction.
+
+* TLS LE relaxation is now supported on LoongArch. New relocation
+ operators %le_hi20_r, %le_lo12r, and %le_add_r are now available.
+
+* Add support for LoongArch branch relaxation: a conditional branch with
+ destination out of its immediate operand range, but still within
+ a "b"'s range, is now assembled as an inverted branch and a "b". This
+ works around the unreliable branch offset estimation of the compiler
+ when .align directive is encoded into a long NOP sequence with an
+ R_LARCH_RELAX by the assembler.
+
+* Symbol or label names in LoongArch assembly can now be spelled with
+ double-quotes.
+
Changes in 2.41:
* Add support for the KVX instruction set.
diff --git a/ld/NEWS b/ld/NEWS
index c3ebe32..a5a5b9f 100644
--- a/ld/NEWS
+++ b/ld/NEWS
@@ -29,6 +29,17 @@ Changes in 2.42:
--enable-error-rwx-segments=[yes|no] configure options to set the default for
converting warnings into errors.
+* On LoongArch, various linker relaxation bugs are fixed; the most notable
+ of which is BZ 30944 (incorrect .balign semantics).
+
+* On LoongArch, the LoongArch ABI v2.30 (LoongArch ELF psABI v20231219) is
+ now implemented. This includes new relocation types, and changed
+ semantics for PC-relative relocations handling the higher half of 64-bit
+ offsets.
+
+* On LoongArch, link-time TLS optimization and TLS relaxation are now
+ supported.
+
Changes in 2.41:
* The linker now accepts a command line option of --remap-inputs