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gnu: gdb: Fix opcode table for Loongson fused multiply-add.

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* gnu/packages/patches/gdb-loongson-madd-fix.patch: New file.
* gnu/packages/gdb.scm (gdb): Add patch.
* gnu-system.am (dist_patch_DATA): Add patch.
This commit is contained in:
Mark H Weaver 2013-11-03 18:23:38 -05:00
parent 1602fcea18
commit b20441f228
3 changed files with 48 additions and 1 deletions
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1
gnu-system.am
View file

@ -220,6 +220,7 @@ dist_patch_DATA = \
gnu/packages/patches/flex-bison-tests.patch \
gnu/packages/patches/gawk-shell.patch \
gnu/packages/patches/gcc-cross-environment-variables.patch \
gnu/packages/patches/gdb-loongson-madd-fix.patch \
gnu/packages/patches/glib-tests-desktop.patch \
gnu/packages/patches/glib-tests-homedir.patch \
gnu/packages/patches/glib-tests-newnet.patch \

4
gnu/packages/gdb.scm
View file

@ -17,6 +17,7 @@
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (gnu packages gdb)
#:use-module (gnu packages)
#:use-module (gnu packages ncurses)
#:use-module (gnu packages readline)
#:use-module (gnu packages dejagnu)
@ -39,7 +40,8 @@ (define-public gdb
version ".tar.bz2"))
(sha256
(base32
"1r32s6vqgskw6pz9pmp41b8injd51c4bbxr6ifdpyid52j5a7pz3"))))
"1r32s6vqgskw6pz9pmp41b8injd51c4bbxr6ifdpyid52j5a7pz3"))
(patches (list (search-patch "gdb-loongson-madd-fix.patch")))))
(build-system gnu-build-system)
(arguments
'(#:phases (alist-cons-after

44
gnu/packages/patches/gdb-loongson-madd-fix.patch Normal file
View file

@ -0,0 +1,44 @@
Fix the Loongson 2F specific fused multiply-add instructions on paired singles to
use the encoding recognized by the processor, as opposed to the mistaken english
Loongson 2F documentation.
Patch by Mark H Weaver <mhw@netris.org>.
--- gdb/opcodes/mips-opc.c.orig 2013-02-09 05:24:18.000000000 -0500
+++ gdb/opcodes/mips-opc.c 2013-10-27 23:35:20.191997541 -0400
@@ -956,7 +956,7 @@
{"madd.s", "D,S,T", 0x4600001c, 0xffe0003f, RD_S|RD_T|WR_D|FP_S, 0, EE },
{"madd.ps", "D,R,S,T", 0x4c000026, 0xfc00003f, RD_R|RD_S|RD_T|WR_D|FP_D, 0, I5_33 },
{"madd.ps", "D,S,T", 0x45600018, 0xffe0003f, RD_S|RD_T|WR_D|FP_D, 0, IL2E },
-{"madd.ps", "D,S,T", 0x71600018, 0xffe0003f, RD_S|RD_T|WR_D|FP_D, 0, IL2F },
+{"madd.ps", "D,S,T", 0x72c00018, 0xffe0003f, RD_S|RD_T|WR_D|FP_D, 0, IL2F },
{"madd", "s,t", 0x0000001c, 0xfc00ffff, RD_s|RD_t|WR_HILO, 0, L1 },
{"madd", "s,t", 0x70000000, 0xfc00ffff, RD_s|RD_t|MOD_HILO, 0, I32|N55 },
{"madd", "s,t", 0x70000000, 0xfc00ffff, RD_s|RD_t|WR_HILO|IS_M, 0, G1 },
@@ -1084,7 +1084,7 @@
{"msub.s", "D,S,T", 0x4600001d, 0xffe0003f, RD_S|RD_T|WR_D|FP_S, 0, EE },
{"msub.ps", "D,R,S,T", 0x4c00002e, 0xfc00003f, RD_R|RD_S|RD_T|WR_D|FP_D, 0, I5_33 },
{"msub.ps", "D,S,T", 0x45600019, 0xffe0003f, RD_S|RD_T|WR_D|FP_D, 0, IL2E },
-{"msub.ps", "D,S,T", 0x71600019, 0xffe0003f, RD_S|RD_T|WR_D|FP_D, 0, IL2F },
+{"msub.ps", "D,S,T", 0x72c00019, 0xffe0003f, RD_S|RD_T|WR_D|FP_D, 0, IL2F },
{"msub", "s,t", 0x0000001e, 0xfc00ffff, RD_s|RD_t|WR_HILO, 0, L1 },
{"msub", "s,t", 0x70000004, 0xfc00ffff, RD_s|RD_t|MOD_HILO, 0, I32|N55 },
{"msub", "7,s,t", 0x70000004, 0xfc00e7ff, MOD_a|RD_s|RD_t, 0, D32 },
@@ -1218,7 +1218,7 @@
{"nmadd.s", "D,S,T", 0x7200001a, 0xffe0003f, RD_S|RD_T|WR_D|FP_S, 0, IL2F },
{"nmadd.ps","D,R,S,T", 0x4c000036, 0xfc00003f, RD_R|RD_S|RD_T|WR_D|FP_D, 0, I5_33 },
{"nmadd.ps", "D,S,T", 0x4560001a, 0xffe0003f, RD_S|RD_T|WR_D|FP_D, 0, IL2E },
-{"nmadd.ps", "D,S,T", 0x7160001a, 0xffe0003f, RD_S|RD_T|WR_D|FP_D, 0, IL2F },
+{"nmadd.ps", "D,S,T", 0x72c0001a, 0xffe0003f, RD_S|RD_T|WR_D|FP_D, 0, IL2F },
{"nmsub.d", "D,R,S,T", 0x4c000039, 0xfc00003f, RD_R|RD_S|RD_T|WR_D|FP_D, 0, I4_33 },
{"nmsub.d", "D,S,T", 0x4620001b, 0xffe0003f, RD_S|RD_T|WR_D|FP_D, 0, IL2E },
{"nmsub.d", "D,S,T", 0x7220001b, 0xffe0003f, RD_S|RD_T|WR_D|FP_D, 0, IL2F },
@@ -1227,7 +1227,7 @@
{"nmsub.s", "D,S,T", 0x7200001b, 0xffe0003f, RD_S|RD_T|WR_D|FP_S, 0, IL2F },
{"nmsub.ps","D,R,S,T", 0x4c00003e, 0xfc00003f, RD_R|RD_S|RD_T|WR_D|FP_D, 0, I5_33 },
{"nmsub.ps", "D,S,T", 0x4560001b, 0xffe0003f, RD_S|RD_T|WR_D|FP_D, 0, IL2E },
-{"nmsub.ps", "D,S,T", 0x7160001b, 0xffe0003f, RD_S|RD_T|WR_D|FP_D, 0, IL2F },
+{"nmsub.ps", "D,S,T", 0x72c0001b, 0xffe0003f, RD_S|RD_T|WR_D|FP_D, 0, IL2F },
/* nop is at the start of the table. */
{"nor", "d,v,t", 0x00000027, 0xfc0007ff, WR_d|RD_s|RD_t, 0, I1 },
{"nor", "t,r,I", 0, (int) M_NOR_I, INSN_MACRO, 0, I1 },