Bug#1056007: 0ad: Please enable riscv64 build
Eric Long
i at hack3r.moe
Thu Nov 16 05:23:08 GMT 2023
Source: 0ad
Version: 0.0.26-4
Severity: normal
Tags: ftbfs patch upstream
User: debian-riscv at lists.debian.org
Usertags: riscv64
X-Debbugs-Cc: debian-riscv at lists.debian.org, i at hack3r.moe
Dear maintainer,
I've ported 0ad to riscv64, using patches for SpiderMonkey 78. The
debdiff is attached below.
The game has been tested and run on Milk-V Pioneer with SG2042 and AMD
GPU [1], using the packaged 0ad from Arch Linux RISC-V (which is also
submitted by me) [2]. The fix for GCC 13 double-word atomic is also
included [3].
Cheers,
Eric
[1]: https://twitter.com/Houge_Langley/status/1676369377967370240
[2]: https://github.com/felixonmars/archriscv-packages/pull/2782
[3]: https://github.com/felixonmars/archriscv-packages/pull/2962
-------------- next part --------------
diff -Nru 0ad-0.0.26/debian/changelog 0ad-0.0.26/debian/changelog
--- 0ad-0.0.26/debian/changelog 2023-07-16 15:13:32.000000000 +0800
+++ 0ad-0.0.26/debian/changelog 2023-11-15 20:32:21.000000000 +0800
@@ -1,3 +1,10 @@
+0ad (0.0.26-4.1) UNRELEASED; urgency=medium
+
+ * Non-maintainer upload.
+ * Add riscv64 support
+
+ -- Eric Long <i at hack3r.moe> Wed, 15 Nov 2023 20:32:21 +0800
+
0ad (0.0.26-4) unstable; urgency=medium
[ Vincent Cheng ]
diff -Nru 0ad-0.0.26/debian/control 0ad-0.0.26/debian/control
--- 0ad-0.0.26/debian/control 2023-07-16 15:13:04.000000000 +0800
+++ 0ad-0.0.26/debian/control 2023-11-15 20:32:21.000000000 +0800
@@ -47,7 +47,7 @@
Rules-Requires-Root: no
Package: 0ad
-Architecture: amd64 arm64 armhf i386 kfreebsd-amd64 kfreebsd-i386
+Architecture: amd64 arm64 armhf i386 kfreebsd-amd64 kfreebsd-i386 riscv64
Pre-Depends: dpkg (>= 1.15.6~)
Depends:
0ad-data (>= ${source:Upstream-Version}),
diff -Nru 0ad-0.0.26/debian/patches/add-riscv64-support.patch 0ad-0.0.26/debian/patches/add-riscv64-support.patch
--- 0ad-0.0.26/debian/patches/add-riscv64-support.patch 1970-01-01 08:00:00.000000000 +0800
+++ 0ad-0.0.26/debian/patches/add-riscv64-support.patch 2023-11-15 20:32:21.000000000 +0800
@@ -0,0 +1,414 @@
+Description: Enables riscv64 build
+Author: Eric Long <i at hack3r.moe>
+Forwarded: https://trac.wildfiregames.com/ticket/6834
+
+diff --git a/build/premake/premake5.lua b/build/premake/premake5.lua
+index 9539e2a..12dcd43 100644
+--- a/build/premake/premake5.lua
++++ b/build/premake/premake5.lua
+@@ -105,6 +105,8 @@ else
+ arch = "e2k"
+ elseif string.find(machine, "ppc64") == 1 or string.find(machine, "powerpc64") == 1 then
+ arch = "ppc64"
++ elseif string.find(machine, "riscv64") == 1 then
++ arch = "riscv64"
+ else
+ print("WARNING: Cannot determine architecture from GCC, assuming x86")
+ end
+@@ -896,6 +898,8 @@ function setup_all_libs ()
+ table.insert(source_dirs, "lib/sysdep/arch/e2k");
+ elseif arch == "ppc64" then
+ table.insert(source_dirs, "lib/sysdep/arch/ppc64");
++ elseif arch == "riscv64" then
++ table.insert(source_dirs, "lib/sysdep/arch/riscv64");
+ end
+
+ -- OS-specific
+diff --git a/libraries/source/nvtt/src/extern/poshlib/posh.h b/libraries/source/nvtt/src/extern/poshlib/posh.h
+index 5382294..dfbe635 100644
+--- a/libraries/source/nvtt/src/extern/poshlib/posh.h
++++ b/libraries/source/nvtt/src/extern/poshlib/posh.h
+@@ -540,6 +540,17 @@ LLVM:
+ # define POSH_CPU_STRING "PA-RISC"
+ #endif
+
++#if defined __riscv
++# define POSH_CPU_RISCV 1
++# if __riscv_xlen == 64
++# define POSH_CPU_RISCV64 1
++# define POSH_CPU_STRING "riscv64"
++# elif __riscv_xlen == 32
++# define POSH_CPU_RISCV32 1
++# define POSH_CPU_STRING "riscv32"
++# endif
++#endif
++
+ #if !defined POSH_CPU_STRING
+ # error POSH cannot determine target CPU
+ # define POSH_CPU_STRING "Unknown" /* this is here for Doxygen's benefit */
+diff --git a/libraries/source/nvtt/src/src/nvcore/Debug.cpp b/libraries/source/nvtt/src/src/nvcore/Debug.cpp
+index a211715..89ff150 100644
+--- a/libraries/source/nvtt/src/src/nvcore/Debug.cpp
++++ b/libraries/source/nvtt/src/src/nvcore/Debug.cpp
+@@ -674,6 +674,9 @@ namespace
+ # elif NV_CPU_AARCH64
+ ucontext_t * ucp = (ucontext_t *)secret;
+ return (void *) ucp->uc_mcontext.pc;
++# elif POSH_CPU_RISCV64
++ ucontext_t * ucp = (ucontext_t *)secret;
++ return (void *) ucp->uc_mcontext.__gregs[REG_PC];
+ # else
+ # error "Unknown CPU"
+ # endif
+diff --git a/libraries/source/nvtt/src/src/nvcore/Debug.h b/libraries/source/nvtt/src/src/nvcore/Debug.h
+index 75fb41c..37fc407 100644
+--- a/libraries/source/nvtt/src/src/nvcore/Debug.h
++++ b/libraries/source/nvtt/src/src/nvcore/Debug.h
+@@ -166,7 +166,7 @@ NVCORE_API void NV_CDECL nvDebugPrint( const char *msg, ... ) __attribute__((for
+ namespace nv
+ {
+ inline bool isValidPtr(const void * ptr) {
+- #if NV_CPU_X86_64 || POSH_CPU_PPC64 || NV_CPU_AARCH64
++ #if NV_CPU_X86_64 || POSH_CPU_PPC64 || NV_CPU_AARCH64 || POSH_CPU_RISCV64
+ if (ptr == NULL) return true;
+ if (reinterpret_cast<uint64>(ptr) < 0x10000ULL) return false;
+ if (reinterpret_cast<uint64>(ptr) >= 0x000007FFFFFEFFFFULL) return false;
+diff --git a/libraries/source/nvtt/src/src/nvcore/nvcore.h b/libraries/source/nvtt/src/src/nvcore/nvcore.h
+index 518e743..a14c348 100644
+--- a/libraries/source/nvtt/src/src/nvcore/nvcore.h
++++ b/libraries/source/nvtt/src/src/nvcore/nvcore.h
+@@ -111,6 +111,8 @@
+ # define NV_CPU_ARM 1
+ #elif defined POSH_CPU_AARCH64
+ # define NV_CPU_AARCH64 1
++#elif defined POSH_CPU_RISCV
++# define NV_CPU_RISCV 1
+ #else
+ # error "Unsupported CPU"
+ #endif
+diff --git a/libraries/source/nvtt/src/src/nvthread/Atomic.h b/libraries/source/nvtt/src/src/nvthread/Atomic.h
+index 3010a5f..b9fd72d 100644
+--- a/libraries/source/nvtt/src/src/nvthread/Atomic.h
++++ b/libraries/source/nvtt/src/src/nvthread/Atomic.h
+@@ -73,6 +73,16 @@ namespace nv {
+ // also utilizes a full barrier
+ // currently treating load like x86 - this could be wrong
+
++ // this is the easiest but slowest way to do this
++ nvCompilerReadWriteBarrier();
++ uint32 ret = *ptr; // replace with ldrex?
++ nvCompilerReadWriteBarrier();
++ return ret;
++#elif POSH_CPU_RISCV64
++ // need more specific cpu type for riscv64?
++ // also utilizes a full barrier
++ // currently treating load like x86 - this could be wrong
++
+ // this is the easiest but slowest way to do this
+ nvCompilerReadWriteBarrier();
+ uint32 ret = *ptr; // replace with ldrex?
+@@ -102,6 +112,11 @@ namespace nv {
+ nvCompilerReadWriteBarrier();
+ *ptr = value; //strex?
+ nvCompilerReadWriteBarrier();
++#elif POSH_CPU_RISCV64
++ // this is the easiest but slowest way to do this
++ nvCompilerReadWriteBarrier();
++ *ptr = value; //strex?
++ nvCompilerReadWriteBarrier();
+ #else
+ #error "Atomics not implemented."
+ #endif
+diff --git a/libraries/source/spidermonkey/0001-feature-riscv64-support-from-Debian-and-clang.patch b/libraries/source/spidermonkey/0001-feature-riscv64-support-from-Debian-and-clang.patch
+new file mode 100644
+index 0000000..be6f936
+--- /dev/null
++++ b/libraries/source/spidermonkey/0001-feature-riscv64-support-from-Debian-and-clang.patch
+@@ -0,0 +1,164 @@
++From: William Grant <wgrant at ubuntu.com>
++Date: Tue, 14 Apr 2020 02:18:28 +0200
++Subject: Add riscv64 support
++
++Bug-Debian: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=932893
++Bug-Mozilla: https://bugzilla.mozilla.org/show_bug.cgi?id=1661027
++
++From: Zenithal <i at zenithal.me>
++
++Add clang support
++---
++ build/moz.configure/init.configure | 3 +++
++ js/src/jit/AtomicOperations.h | 3 ++-
++ js/src/jit/shared/AtomicOperations-feeling-lucky-gcc.h | 5 +++++
++ mfbt/tests/TestPoisonArea.cpp | 3 +++
++ python/mozbuild/mozbuild/configure/constants.py | 2 ++
++ third_party/rust/cc/.cargo-checksum.json | 2 +-
++ third_party/rust/cc/src/lib.rs | 14 +++++++++-----
++ 7 files changed, 25 insertions(+), 7 deletions(-)
++
++diff --git a/build/moz.configure/init.configure b/build/moz.configure/init.configure
++index b887153..54615d8 100644
++--- a/build/moz.configure/init.configure
+++++ b/build/moz.configure/init.configure
++@@ -758,6 +758,9 @@ def split_triplet(triplet, allow_msvc=False):
++ elif cpu == 'sh4':
++ canonical_cpu = 'sh4'
++ endianness = 'little'
+++ elif cpu.startswith('riscv64'):
+++ canonical_cpu = 'riscv64'
+++ endianness = 'little'
++ else:
++ raise ValueError('Unknown CPU type: %s' % cpu)
++
++diff --git a/js/src/jit/AtomicOperations.h b/js/src/jit/AtomicOperations.h
++index 0486cba..d00e276 100644
++--- a/js/src/jit/AtomicOperations.h
+++++ b/js/src/jit/AtomicOperations.h
++@@ -391,7 +391,8 @@ inline bool AtomicOperations::isLockfreeJS(int32_t size) {
++ #elif defined(__ppc__) || defined(__PPC__) || defined(__sparc__) || \
++ defined(__ppc64__) || defined(__PPC64__) || defined(__ppc64le__) || \
++ defined(__PPC64LE__) || defined(__alpha__) || defined(__hppa__) || \
++- defined(__sh__) || defined(__s390__) || defined(__s390x__)
+++ defined(__sh__) || defined(__s390__) || defined(__s390x__) || \
+++ defined(__riscv)
++ # include "jit/shared/AtomicOperations-feeling-lucky.h"
++ #else
++ # error "No AtomicOperations support provided for this platform"
++diff --git a/js/src/jit/shared/AtomicOperations-feeling-lucky-gcc.h b/js/src/jit/shared/AtomicOperations-feeling-lucky-gcc.h
++index f002cd4..413591a 100644
++--- a/js/src/jit/shared/AtomicOperations-feeling-lucky-gcc.h
+++++ b/js/src/jit/shared/AtomicOperations-feeling-lucky-gcc.h
++@@ -70,6 +70,11 @@
++ # endif
++ #endif
++
+++#if defined(__riscv) && __riscv_xlen == 64
+++# define HAS_64BIT_ATOMICS
+++# define HAS_64BIT_LOCKFREE
+++#endif
+++
++ #ifdef JS_CODEGEN_NONE
++ # ifdef JS_64BIT
++ # define HAS_64BIT_ATOMICS
++diff --git a/mfbt/tests/TestPoisonArea.cpp b/mfbt/tests/TestPoisonArea.cpp
++index fbd3364..0a67e8c 100644
++--- a/mfbt/tests/TestPoisonArea.cpp
+++++ b/mfbt/tests/TestPoisonArea.cpp
++@@ -169,6 +169,9 @@ static const ia64_instr _return_instr = {
++ # define RETURN_INSTR _return_instr
++ # define RETURN_INSTR_TYPE ia64_instr
++
+++#elif defined(__riscv)
+++#define RETURN_INSTR 0x80828082 /* ret; ret */
+++
++ #else
++ # error "Need return instruction for this architecture"
++ #endif
++diff --git a/python/mozbuild/mozbuild/configure/constants.py b/python/mozbuild/mozbuild/configure/constants.py
++index 7542dcd..c9dd1bb 100644
++--- a/python/mozbuild/mozbuild/configure/constants.py
+++++ b/python/mozbuild/mozbuild/configure/constants.py
++@@ -49,6 +49,7 @@ CPU_bitness = {
++ 'mips64': 64,
++ 'ppc': 32,
++ 'ppc64': 64,
+++ 'riscv64': 64,
++ 's390': 32,
++ 's390x': 64,
++ 'sh4': 32,
++@@ -88,6 +89,7 @@ CPU_preprocessor_checks = OrderedDict((
++ ('mips64', '__mips64'),
++ ('mips32', '__mips__'),
++ ('sh4', '__sh__'),
+++ ('riscv64', '__riscv && __riscv_xlen == 64'),
++ ))
++
++ assert sorted(CPU_preprocessor_checks.keys()) == sorted(CPU.POSSIBLE_VALUES)
++diff --git a/third_party/rust/cc/src/lib.rs b/third_party/rust/cc/src/lib.rs
++index 621d31d..968d03a 100644
++--- a/third_party/rust/cc/src/lib.rs
+++++ b/third_party/rust/cc/src/lib.rs
++@@ -1365,10 +1365,10 @@ impl Build {
++ cmd.push_cc_arg("-ffunction-sections".into());
++ cmd.push_cc_arg("-fdata-sections".into());
++ }
++- // Disable generation of PIC on RISC-V for now: rust-lld doesn't support this yet
+++ // Disable generation of PIC on bare-metal for now: rust-lld doesn't support this yet
++ if self
++ .pic
++- .unwrap_or(!target.contains("windows-gnu") && !target.contains("riscv"))
+++ .unwrap_or(!target.contains("windows") && !target.contains("-none-"))
++ {
++ cmd.push_cc_arg("-fPIC".into());
++ // PLT only applies if code is compiled with PIC support,
++@@ -1397,7 +1397,11 @@ impl Build {
++ // Target flags
++ match cmd.family {
++ ToolFamily::Clang => {
++- cmd.args.push(format!("--target={}", target).into());
+++ if target.starts_with("riscv64gc-") {
+++ cmd.args.push(format!("--target={}", target.replace("riscv64gc", "riscv64")).into());
+++ } else {
+++ cmd.args.push(format!("--target={}", target).into());
+++ }
++ }
++ ToolFamily::Msvc { clang_cl } => {
++ // This is an undocumented flag from MSVC but helps with making
++@@ -1588,13 +1588,16 @@ impl Build {
++ if let Some(arch) = parts.next() {
++ let arch = &arch[5..];
++ cmd.args.push(("-march=rv".to_owned() + arch).into());
++- // ABI is always soft-float right now, update this when this is no longer the
++- // case:
++- if arch.starts_with("64") {
+++ if target.contains("linux") && arch.starts_with("64") {
+++ cmd.args.push("-mabi=lp64d".into());
+++ } else if target.contains("linux") && arch.starts_with("32") {
+++ cmd.args.push("-mabi=ilp32d".into());
+++ } else if arch.starts_with("64") {
++ cmd.args.push("-mabi=lp64".into());
++ } else {
++ cmd.args.push("-mabi=ilp32".into());
++ }
+++ cmd.args.push("-mcmodel=medany".into());
++ }
++ }
++ }
++@@ -2024,6 +2027,7 @@ impl Build {
++ "riscv32imac-unknown-none-elf" => Some("riscv32-unknown-elf"),
++ "riscv32imc-unknown-none-elf" => Some("riscv32-unknown-elf"),
++ "riscv64gc-unknown-none-elf" => Some("riscv64-unknown-elf"),
+++ "riscv64gc-unknown-linux-gnu" => Some("riscv64-linux-gnu"),
++ "riscv64imac-unknown-none-elf" => Some("riscv64-unknown-elf"),
++ "s390x-unknown-linux-gnu" => Some("s390x-linux-gnu"),
++ "sparc-unknown-linux-gnu" => Some("sparc-linux-gnu"),
++diff --git a/third_party/rust/cc/.cargo-checksum.json b/third_party/rust/cc/.cargo-checksum.json
++index 417fde7..ac7d18a 100644
++--- a/third_party/rust/cc/.cargo-checksum.json
+++++ b/third_party/rust/cc/.cargo-checksum.json
++@@ -1 +1 @@
++-{"files":{"Cargo.lock":"3aff5f8b0a7f4d72852b11b0526f0002e6bf55f19f1ebd6470d7f97fbd540e60","Cargo.toml":"6ab10d9b6a9c6f0909074e6698c90c6b6a7223661ec2e83174d2593117cbe7f2","LICENSE-APACHE":"a60eea817514531668d7e00765731449fe14d059d3249e0bc93b36de45f759f2","LICENSE-MIT":"378f5840b258e2779c39418f3f2d7b2ba96f1c7917dd6be0713f88305dbda397","README.md":"7184fbdf375a057e673257348f6d7584c0dd11b66318d98f3647f69eb610b097","src/bin/gcc-shim.rs":"b77907875029494b6288841c3aed2e4939ed40708c7f597fca5c9e2570490ca6","src/com.rs":"bcdaf1c28b71e6ef889c6b08d1ce9d7c0761344a677f523bc4c3cd297957f804","src/lib.rs":"bb2df0dc5fd2acf8c474bab64080bd374cca9b3568aaf16cfe8fc6b5253fdeb3","src/registry.rs":"3cc1b5a50879fa751572878ae1d0afbfc960c11665258492754b2c8bccb0ff5d","src/setup_config.rs":"7014103587d3382eac599cb76f016e2609b8140970861b2237982d1db24af265","src/winapi.rs":"ea8b7edbb9ff87957254f465c2334e714c5d6b3b19a8d757c48ea7ca0881c50c","src/windows_registry.rs":"388e79dcf3e84078ae0b086c6cdee9cf9eb7e3ffafdcbf3e2df26163661f5856","tests/cc_env.rs":"e02b3b0824ad039b47e4462c5ef6dbe6c824c28e7953af94a0f28f7b5158042e","tests/cflags.rs":"57f06eb5ce1557e5b4a032d0c4673e18fbe6f8d26c1deb153126e368b96b41b3","tests/cxxflags.rs":"c2c6c6d8a0d7146616fa1caed26876ee7bc9fcfffd525eb4743593cade5f3371","tests/support/mod.rs":"71620b178583b6e6e5e0d4cac14e2cef6afc62fb6841e0c72ed1784543abf8ac","tests/test.rs":"1605640c9b94a77f48fc92e1dc0485bdf1960da5626e2e00279e4703691656bc"},"package":"aa87058dce70a3ff5621797f1506cb837edd02ac4c0ae642b4542dce802908b8"}
++\ No newline at end of file
+++{"files":{"Cargo.lock":"3aff5f8b0a7f4d72852b11b0526f0002e6bf55f19f1ebd6470d7f97fbd540e60","Cargo.toml":"6ab10d9b6a9c6f0909074e6698c90c6b6a7223661ec2e83174d2593117cbe7f2","LICENSE-APACHE":"a60eea817514531668d7e00765731449fe14d059d3249e0bc93b36de45f759f2","LICENSE-MIT":"378f5840b258e2779c39418f3f2d7b2ba96f1c7917dd6be0713f88305dbda397","README.md":"7184fbdf375a057e673257348f6d7584c0dd11b66318d98f3647f69eb610b097","src/bin/gcc-shim.rs":"b77907875029494b6288841c3aed2e4939ed40708c7f597fca5c9e2570490ca6","src/com.rs":"bcdaf1c28b71e6ef889c6b08d1ce9d7c0761344a677f523bc4c3cd297957f804","src/lib.rs":"443787e1b10696d7dbe61e0027e44b367ac72be5ebe10317295107d1aa054cc8","src/registry.rs":"3cc1b5a50879fa751572878ae1d0afbfc960c11665258492754b2c8bccb0ff5d","src/setup_config.rs":"7014103587d3382eac599cb76f016e2609b8140970861b2237982d1db24af265","src/winapi.rs":"ea8b7edbb9ff87957254f465c2334e714c5d6b3b19a8d757c48ea7ca0881c50c","src/windows_registry.rs":"388e79dcf3e84078ae0b086c6cdee9cf9eb7e3ffafdcbf3e2df26163661f5856","tests/cc_env.rs":"e02b3b0824ad039b47e4462c5ef6dbe6c824c28e7953af94a0f28f7b5158042e","tests/cflags.rs":"57f06eb5ce1557e5b4a032d0c4673e18fbe6f8d26c1deb153126e368b96b41b3","tests/cxxflags.rs":"c2c6c6d8a0d7146616fa1caed26876ee7bc9fcfffd525eb4743593cade5f3371","tests/support/mod.rs":"71620b178583b6e6e5e0d4cac14e2cef6afc62fb6841e0c72ed1784543abf8ac","tests/test.rs":"1605640c9b94a77f48fc92e1dc0485bdf1960da5626e2e00279e4703691656bc"},"package":"aa87058dce70a3ff5621797f1506cb837edd02ac4c0ae642b4542dce802908b8"}
+diff --git a/libraries/source/spidermonkey/patch.sh b/libraries/source/spidermonkey/patch.sh
+index d16742c..9d08923 100644
+--- a/libraries/source/spidermonkey/patch.sh
++++ b/libraries/source/spidermonkey/patch.sh
+@@ -85,3 +85,9 @@ then
+ # https://svnweb.freebsd.org/ports/head/lang/spidermonkey78/files/patch-third__party_rust_cc_src_lib.rs?view=log
+ patch -p1 < ../FixFreeBSDRustThirdPartyOSDetection.diff
+ fi
++
++if [ "$(uname -m)" = "riscv64" ];
++then
++ patch -p1 < ../0001-feature-riscv64-support-from-Debian-and-clang.patch
++ patch -p1 < ../tests-skip-some-tests-on-rv64.patch
++fi
+diff --git a/libraries/source/spidermonkey/tests-skip-some-tests-on-rv64.patch b/libraries/source/spidermonkey/tests-skip-some-tests-on-rv64.patch
+new file mode 100644
+index 0000000..eb8e7db
+--- /dev/null
++++ b/libraries/source/spidermonkey/tests-skip-some-tests-on-rv64.patch
+@@ -0,0 +1,27 @@
++diff --unified --recursive --text a/js/src/tests/non262/Array/regress-157652.js b/js/src/tests/non262/Array/regress-157652.js
++--- a/js/src/tests/non262/Array/regress-157652.js 2022-02-16 20:45:04.795659521 +0800
+++++ b/js/src/tests/non262/Array/regress-157652.js 2022-02-16 21:58:08.905996653 +0800
++@@ -1,4 +1,4 @@
++-// |reftest| skip-if(xulRuntime.XPCOMABI.match(/x86_64|aarch64|ppc64|ppc64le|s390x|mips64/)||Android) -- No test results
+++// |reftest| skip-if(xulRuntime.XPCOMABI.match(/x86_64|aarch64|ppc64|ppc64le|s390x|mips64|riscv64/)||Android) -- No test results
++ /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
++ /* This Source Code Form is subject to the terms of the Mozilla Public
++ * License, v. 2.0. If a copy of the MPL was not distributed with this
++diff --unified --recursive --text a/js/src/tests/non262/Array/regress-330812.js b/js/src/tests/non262/Array/regress-330812.js
++--- a/js/src/tests/non262/Array/regress-330812.js 2022-02-16 20:45:04.798992836 +0800
+++++ b/js/src/tests/non262/Array/regress-330812.js 2022-02-16 21:58:54.699088464 +0800
++@@ -1,4 +1,4 @@
++-// |reftest| slow-if(xulRuntime.XPCOMABI.match(/x86_64|aarch64|ppc64|ppc64le|s390x|mips64/)||Android) -- No test results
+++// |reftest| skip-if(xulRuntime.XPCOMABI.match(/x86_64|aarch64|ppc64|ppc64le|s390x|mips64|riscv64/)||Android) -- No test results
++ /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
++ /* This Source Code Form is subject to the terms of the Mozilla Public
++ * License, v. 2.0. If a copy of the MPL was not distributed with this
++diff --unified --recursive --text a/js/src/tests/non262/regress/regress-422348.js b/js/src/tests/non262/regress/regress-422348.js
++--- a/js/src/tests/non262/regress/regress-422348.js 2022-02-16 20:45:04.715659964 +0800
+++++ b/js/src/tests/non262/regress/regress-422348.js 2022-02-16 21:59:55.658750431 +0800
++@@ -1,4 +1,4 @@
++-// |reftest| skip-if(xulRuntime.XPCOMABI.match(/x86_64|aarch64|ppc64|ppc64le|s390x|mips64/)) -- On 64-bit, takes forever rather than throwing
+++// |reftest| skip-if(xulRuntime.XPCOMABI.match(/x86_64|aarch64|ppc64|ppc64le|s390x|mips64|riscv64/)) -- On 64-bit, takes forever rather than throwing
++ /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
++ /* This Source Code Form is subject to the terms of the Mozilla Public
++ * License, v. 2.0. If a copy of the MPL was not distributed with this
+diff --git a/source/lib/sysdep/arch.h b/source/lib/sysdep/arch.h
+index 7455097..ef22403 100644
+--- a/source/lib/sysdep/arch.h
++++ b/source/lib/sysdep/arch.h
+@@ -82,9 +82,15 @@
+ #else
+ # define ARCH_E2K 0
+ #endif
++// .. riscv64
++#if defined(__riscv) && (__riscv_xlen == 64)
++# define ARCH_RISCV64 1
++#else
++# define ARCH_RISCV64 0
++#endif
+
+ // ensure exactly one architecture has been detected
+-#if (ARCH_IA32+ARCH_IA64+ARCH_AMD64+ARCH_ALPHA+ARCH_ARM+ARCH_AARCH64+ARCH_MIPS+ARCH_E2K+ARCH_PPC64) != 1
++#if (ARCH_IA32+ARCH_IA64+ARCH_AMD64+ARCH_ALPHA+ARCH_ARM+ARCH_AARCH64+ARCH_MIPS+ARCH_E2K+ARCH_PPC64+ARCH_RISCV64) != 1
+ # error "architecture not correctly detected (either none or multiple ARCH_* defined)"
+ #endif
+
+diff --git a/source/lib/sysdep/arch/riscv64/riscv64.cpp b/source/lib/sysdep/arch/riscv64/riscv64.cpp
+new file mode 100644
+index 0000000..9b72e74
+--- /dev/null
++++ b/source/lib/sysdep/arch/riscv64/riscv64.cpp
+@@ -0,0 +1,49 @@
++/* Copyright (C) 2015 Wildfire Games.
++ *
++ * Permission is hereby granted, free of charge, to any person obtaining
++ * a copy of this software and associated documentation files (the
++ * "Software"), to deal in the Software without restriction, including
++ * without limitation the rights to use, copy, modify, merge, publish,
++ * distribute, sublicense, and/or sell copies of the Software, and to
++ * permit persons to whom the Software is furnished to do so, subject to
++ * the following conditions:
++ *
++ * The above copyright notice and this permission notice shall be included
++ * in all copies or substantial portions of the Software.
++ *
++ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
++ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
++ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
++ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
++ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
++ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
++ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
++ */
++
++/*
++ * routines specific to riscv64
++ */
++
++#include "precompiled.h"
++
++#include "lib/sysdep/cpu.h"
++
++intptr_t cpu_AtomicAdd(volatile intptr_t* location, intptr_t increment)
++{
++ return __sync_fetch_and_add(location, increment);
++}
++
++bool cpu_CAS(volatile intptr_t* location, intptr_t expected, intptr_t newValue)
++{
++ return __sync_bool_compare_and_swap(location, expected, newValue);
++}
++
++bool cpu_CAS64(volatile i64* location, i64 expected, i64 newValue)
++{
++ return __sync_bool_compare_and_swap(location, expected, newValue);
++}
++
++const char* cpu_IdentifierString()
++{
++ return "unknown"; // TODO
++}
diff -Nru 0ad-0.0.26/debian/patches/riscv64-fix-atomic.patch 0ad-0.0.26/debian/patches/riscv64-fix-atomic.patch
--- 0ad-0.0.26/debian/patches/riscv64-fix-atomic.patch 1970-01-01 08:00:00.000000000 +0800
+++ 0ad-0.0.26/debian/patches/riscv64-fix-atomic.patch 2023-11-15 20:32:21.000000000 +0800
@@ -0,0 +1,34 @@
+Description: The newer version of GCC has changed spec related to
+ pthread, so libatomic is not automatically added when "-pthread" is
+ specified (see https://github.com/riscv-collab/riscv-gcc/issues/337).
+ For doubleword atomics, libatomic is still needed (implemented with
+ locks).
+Author: xctan <sterprim at outlook.com>
+Forwarded: https://code.wildfiregames.com/D5127
+
+--- a/build/premake/premake5.lua
++++ b/build/premake/premake5.lua
+@@ -1120,6 +1120,11 @@
+ linkoptions { "-pthread" }
+ end
+
++ -- DWCAS support on riscv64 platform
++ if arch == "riscv64" then
++ links { "atomic" }
++ end
++
+ -- For debug_resolve_symbol
+ filter "Debug"
+ linkoptions { "-rdynamic" }
+@@ -1505,6 +1510,11 @@
+ linkoptions { "-pthread" }
+ end
+
++ -- DWCAS support on riscv64 platform
++ if arch == "riscv64" then
++ links { "atomic" }
++ end
++
+ -- For debug_resolve_symbol
+ filter "Debug"
+ linkoptions { "-rdynamic" }
diff -Nru 0ad-0.0.26/debian/patches/series 0ad-0.0.26/debian/patches/series
--- 0ad-0.0.26/debian/patches/series 2023-07-16 15:13:32.000000000 +0800
+++ 0ad-0.0.26/debian/patches/series 2023-11-15 20:26:32.000000000 +0800
@@ -7,3 +7,5 @@
# Do NOT include mozjs_virtualenv.patch here, GNU patch cannot handle binary patches
# See fix_python_3.11_ftbfs.patch for more context
fix_gcc13_ftbfs.patch
+add-riscv64-support.patch
+riscv64-fix-atomic.patch
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