From 862752ef988c637562196b802504ce5b3cafe9ea Mon Sep 17 00:00:00 2001
From: wuzx <wuzx1226@qq.com>
Date: Thu, 11 Aug 2022 14:58:42 +0000
Subject: [PATCH] e2fsprogs add sw64

Add code related to sw64 in file configure configure.ac aclocal.m4 lib/blkid/llseek.c lib/ext2fs/unix_io.c to support sw64 architecture.

Signed-off-by: wuzx <wuzx1226@qq.com>
---
 aclocal.m4           | 13 +++++++++++--
 configure            |  6 +++---
 configure.ac         |  2 +-
 lib/blkid/llseek.c   |  2 +-
 lib/ext2fs/unix_io.c |  2 +-
 5 files changed, 17 insertions(+), 8 deletions(-)

diff --git a/aclocal.m4 b/aclocal.m4
index 0f39d30..206d5b0 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -977,6 +977,12 @@ changequote([,])dnl
            [gl_cv_host_cpu_c_abi=i386])
          ;;
 
+changequote(,)dnl
+       sw_64* )
+changequote([,])dnl
+         gl_cv_host_cpu_c_abi=sw_64
+         ;;
+
 changequote(,)dnl
        alphaev[4-8] | alphaev56 | alphapca5[67] | alphaev6[78] )
 changequote([,])dnl
@@ -1242,6 +1248,9 @@ EOF
 #ifndef __x86_64__
 #undef __x86_64__
 #endif
+#ifndef __sw_64__
+#undef __sw_64__
+#endif
 #ifndef __alpha__
 #undef __alpha__
 #endif
@@ -1355,7 +1364,7 @@ AC_DEFUN([gl_HOST_CPU_C_ABI_32BIT],
        case "$gl_cv_host_cpu_c_abi" in
          i386 | x86_64-x32 | arm | armhf | arm64-ilp32 | hppa | ia64-ilp32 | mips | mipsn32 | powerpc | riscv*-ilp32* | s390 | sparc)
            gl_cv_host_cpu_c_abi_32bit=yes ;;
-         x86_64 | alpha | arm64 | hppa64 | ia64 | mips64 | powerpc64 | powerpc64-elfv2 | riscv*-lp64* | s390x | sparc64 )
+         x86_64 | sw_64 | alpha | arm64 | hppa64 | ia64 | mips64 | powerpc64 | powerpc64-elfv2 | riscv*-lp64* | s390x | sparc64 )
            gl_cv_host_cpu_c_abi_32bit=no ;;
          *)
            gl_cv_host_cpu_c_abi_32bit=unknown ;;
@@ -1385,7 +1394,7 @@ AC_DEFUN([gl_HOST_CPU_C_ABI_32BIT],
 
          # CPUs that only support a 64-bit ABI.
 changequote(,)dnl
-         alpha | alphaev[4-8] | alphaev56 | alphapca5[67] | alphaev6[78] \
+         sw_64* | alpha | alphaev[4-8] | alphaev56 | alphapca5[67] | alphaev6[78] \
          | mmix )
 changequote([,])dnl
            gl_cv_host_cpu_c_abi_32bit=no
diff --git a/configure b/configure
index 405b730..bc483dc 100755
--- a/configure
+++ b/configure
@@ -4462,7 +4462,7 @@ $as_echo_n "checking for additional special compiler flags... " >&6; }
 if test "$GCC" = yes
 then
     case "$host_cpu" in
-	alpha)		addcflags="-mieee" ;;
+	alpha | sw_64)		addcflags="-mieee" ;;
     esac
 fi
 if test "x$addcflags" != x
@@ -7552,7 +7552,7 @@ else
        case "$gl_cv_host_cpu_c_abi" in
          i386 | x86_64-x32 | arm | armhf | arm64-ilp32 | hppa | ia64-ilp32 | mips | mipsn32 | powerpc | riscv*-ilp32* | s390 | sparc)
            gl_cv_host_cpu_c_abi_32bit=yes ;;
-         x86_64 | alpha | arm64 | hppa64 | ia64 | mips64 | powerpc64 | powerpc64-elfv2 | riscv*-lp64* | s390x | sparc64 )
+         x86_64 | alpha | sw_64 | arm64 | hppa64 | ia64 | mips64 | powerpc64 | powerpc64-elfv2 | riscv*-lp64* | s390x | sparc64 )
            gl_cv_host_cpu_c_abi_32bit=no ;;
          *)
            gl_cv_host_cpu_c_abi_32bit=unknown ;;
@@ -7581,7 +7581,7 @@ else
            ;;
 
          # CPUs that only support a 64-bit ABI.
-         alpha | alphaev[4-8] | alphaev56 | alphapca5[67] | alphaev6[78] \
+         sw_64* | alpha | alphaev[4-8] | alphaev56 | alphapca5[67] | alphaev6[78] \
          | mmix )
            gl_cv_host_cpu_c_abi_32bit=no
            ;;
diff --git a/configure.ac b/configure.ac
index 824a93d..6f39955 100644
--- a/configure.ac
+++ b/configure.ac
@@ -113,7 +113,7 @@ AC_MSG_CHECKING(for additional special compiler flags)
 if test "$GCC" = yes
 then
     case "$host_cpu" in
-	alpha)		addcflags="-mieee" ;;
+	alpha | sw_64)		addcflags="-mieee" ;;
     esac
 fi
 if test "x$addcflags" != x
diff --git a/lib/blkid/llseek.c b/lib/blkid/llseek.c
index 5929864..25c613b 100644
--- a/lib/blkid/llseek.c
+++ b/lib/blkid/llseek.c
@@ -88,7 +88,7 @@ static blkid_loff_t my_llseek(int fd, blkid_loff_t offset, int origin)
 	return (retval == -1 ? (blkid_loff_t) retval : result);
 }
 
-#endif	/* __alpha__ || __ia64__ */
+#endif	/* __alpha__ || __sw_64__ || __ia64__ */
 
 #endif /* HAVE_LLSEEK */
 
diff --git a/lib/ext2fs/unix_io.c b/lib/ext2fs/unix_io.c
index d251c20..e7a2b4e 100644
--- a/lib/ext2fs/unix_io.c
+++ b/lib/ext2fs/unix_io.c
@@ -786,7 +786,7 @@ static errcode_t unix_open_channel(const char *name, int fd,
 
 #ifdef __linux__
 #undef RLIM_INFINITY
-#if (defined(__alpha__) || ((defined(__sparc__) || defined(__mips__)) && (SIZEOF_LONG == 4)))
+#if (defined(__alpha__) || defined(__sw_64__) || ((defined(__sparc__) || defined(__mips__)) && (SIZEOF_LONG == 4)))
 #define RLIM_INFINITY	((unsigned long)(~0UL>>1))
 #else
 #define RLIM_INFINITY  (~0UL)
-- 
2.33.0