From f0cc006e3b7f490ece36996dfbef46712cdaf36f Mon Sep 17 00:00:00 2001
From: wxiat <nijie@wxiat.com>
Date: Tue, 20 Jun 2023 14:20:50 +0800
Subject: [PATCH] add sw

Signed-off-by: wxiat <nijie@wxiat.com>
---
 build-aux/config.guess | 8 ++++++++
 build-aux/config.sub   | 1 +
 configure.ac           | 2 +-
 src/unexelf.c          | 8 +++++++-
 4 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/build-aux/config.guess b/build-aux/config.guess
index 457a63a..827cd81 100755
--- a/build-aux/config.guess
+++ b/build-aux/config.guess
@@ -926,6 +926,14 @@ EOF
 	UNAME_MACHINE=aarch64_be
 	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
 	exit ;;
+    sw_64:Linux:*:*)
+	case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in
+	  sw)   UNAME_MACHINE=sw_64 ;;
+	esac
+	objdump --private-headers /bin/sh | grep -q ld.so.1
+	if test "$?" = 0 ; then LIBC=gnulibc1 ; fi
+	echo "$UNAME_MACHINE"-sunway-linux-"$LIBC"
+	exit ;;
     alpha:Linux:*:*)
 	case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in
 	  EV5)   UNAME_MACHINE=alphaev5 ;;
diff --git a/build-aux/config.sub b/build-aux/config.sub
index 90f19bb..eb9e11d 100755
--- a/build-aux/config.sub
+++ b/build-aux/config.sub
@@ -1159,6 +1159,7 @@ case $cpu-$vendor in
 			| aarch64 | aarch64_be \
 			| loongarch32 | loongarch64 | loongarchx32 \
 			| abacus \
+			| sw_64 \
 			| alpha | alphaev[4-8] | alphaev56 | alphaev6[78] \
 			| alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] \
 			| alphapca5[67] | alpha64pca5[67] \
diff --git a/configure.ac b/configure.ac
index 0b34532..d4d637c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -703,7 +703,7 @@ case "${canonical}" in
   *-apple-darwin* )
     case "${canonical}" in
       *-apple-darwin[0-9].*) unported=yes ;;
-      i[3456]86-* | x86_64-* | arm-* | aarch64-* )  ;;
+      i[3456]86-* | x86_64-* | arm-* | aarch64-* | sw_64-* )  ;;
       * )            unported=yes ;;
     esac
     opsys=darwin
diff --git a/src/unexelf.c b/src/unexelf.c
index b5cded5..6c1e121 100644
--- a/src/unexelf.c
+++ b/src/unexelf.c
@@ -120,7 +120,7 @@ typedef struct {
 /*
  * NetBSD does not have normal-looking user-land ELF support.
  */
-# if defined __alpha__ || defined __sparc_v9__ || defined _LP64
+# if defined __alpha__ || defined __sparc_v9__ || defined _LP64 || defined __sw_64__
 #  define ELFSIZE	64
 # else
 #  define ELFSIZE	32
@@ -150,6 +150,12 @@ typedef struct {
 #  define pHDRR		HDRR *
 # endif /* __alpha__ */
 
+# ifdef __sw_64__
+#  include <sys/exec_ecoff.h>
+#  define HDRR		struct ecoff_symhdr
+#  define pHDRR		HDRR *
+# endif /* __sw_64__ */
+
 #ifdef __mips__			/* was in pkgsrc patches for 20.7 */
 # define SHT_MIPS_DEBUG	DT_MIPS_FLAGS
 # define HDRR		struct Elf_Shdr
-- 
2.31.1