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Add RISC-V support
Upstream-Status: Submitted [https://bugzilla.mozilla.org/show_bug.cgi?id=1318905]
Signed-off-by: Ricardo Salveti <ricardo@foundries.io>
diff --git a/build/autoconf/config.guess b/build/autoconf/config.guess
index d5d667d..1277a86 100755
--- a/build/autoconf/config.guess
+++ b/build/autoconf/config.guess
@@ -1029,6 +1029,9 @@ EOF
ppcle:Linux:*:*)
echo powerpcle-unknown-linux-${LIBC}
exit ;;
+ riscv32:Linux:*:* | riscv64:Linux:*:*)
+ echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+ exit ;;
s390:Linux:*:* | s390x:Linux:*:*)
echo ${UNAME_MACHINE}-ibm-linux-${LIBC}
exit ;;
diff --git a/build/moz.configure/init.configure b/build/moz.configure/init.configure
index 6fe6591..56e6730 100644
--- a/build/moz.configure/init.configure
+++ b/build/moz.configure/init.configure
@@ -362,6 +362,9 @@ def split_triplet(triplet):
elif cpu.startswith('aarch64'):
canonical_cpu = 'aarch64'
endianness = 'little'
+ elif cpu in ('riscv32', 'riscv64'):
+ canonical_cpu = cpu
+ endianness = 'little'
else:
die('Unknown CPU type: %s' % cpu)
diff --git a/mfbt/double-conversion/utils.h b/mfbt/double-conversion/utils.h
index 15dd4bf..4f37218 100644
--- a/mfbt/double-conversion/utils.h
+++ b/mfbt/double-conversion/utils.h
@@ -60,7 +60,8 @@
defined(__sparc__) || defined(__sparc) || defined(__s390__) || \
defined(__SH4__) || defined(__alpha__) || \
defined(_MIPS_ARCH_MIPS32R2) || \
- defined(__AARCH64EL__) || defined(__aarch64__)
+ defined(__AARCH64EL__) || defined(__aarch64__) || \
+ defined(__riscv)
#define DOUBLE_CONVERSION_CORRECT_DOUBLE_OPERATIONS 1
#elif defined(_M_IX86) || defined(__i386__) || defined(__i386)
#if defined(_WIN32)
diff --git a/python/mozbuild/mozbuild/configure/constants.py b/python/mozbuild/mozbuild/configure/constants.py
index dfc7cf8..4f8d666 100644
--- a/python/mozbuild/mozbuild/configure/constants.py
+++ b/python/mozbuild/mozbuild/configure/constants.py
@@ -48,6 +48,8 @@ CPU_bitness = {
'mips64': 64,
'ppc': 32,
'ppc64': 64,
+ 'riscv32': 32,
+ 'riscv64': 64,
's390': 32,
's390x': 64,
'sparc': 32,
@@ -79,6 +81,8 @@ CPU_preprocessor_checks = OrderedDict((
('s390', '__s390__'),
('ppc64', '__powerpc64__'),
('ppc', '__powerpc__'),
+ ('riscv32', '__riscv && __SIZEOF_POINTER__ == 4'),
+ ('riscv64', '__riscv && __SIZEOF_POINTER__ == 8'),
('Alpha', '__alpha__'),
('hppa', '__hppa__'),
('sparc64', '__sparc__ && __arch64__'),
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