From 096aadcd1d6a91213b5305d5001b998d6f688f64 Mon Sep 17 00:00:00 2001
From: ZijianLi <zijian.oerv@isrc.iscas.ac.cn>
Date: Mon, 30 Jun 2025 12:31:42 +0800
Subject: [PATCH] fix cgo enable error on RISCV arch

---
 prometheus2.spec           | 14 +++++++++++++-
 set-riscv-cgo-enable.patch | 11 +++++++++++
 2 files changed, 24 insertions(+), 1 deletion(-)
 create mode 100644 set-riscv-cgo-enable.patch

diff --git a/prometheus2.spec b/prometheus2.spec
index 45eeb91..5a9d1a9 100644
--- a/prometheus2.spec
+++ b/prometheus2.spec
@@ -2,7 +2,7 @@
 
 Name:      prometheus2
 Version:   2.53.3
-Release:   1
+Release:   2
 Summary:   The Prometheus 2.x monitoring system and time series database.
 License:   Apache-2.0
 URL:       https://prometheus.io
@@ -17,6 +17,7 @@ Source5:   prometheus.yml
 Source6:   prometheus.logrotate
 
 Patch0:    Change-client_golang-dependency-version-to-v1.20.0.patch
+Patch1:    set-riscv-cgo-enable.patch
 
 BuildRequires: systemd
 BuildRequires: golang
@@ -37,12 +38,18 @@ results, and can trigger alerts if some condition is observed to be true.
 %setup -n prometheus-%{version}
 tar -xzvf %{SOURCE1}
 %patch 0 -p1
+%ifarch riscv64
+%patch 1 -p1
+%endif
 # Compile using the promu installed on the system, not the downloaded one
 sed -i 's|PROMU[[:space:]]*:=.*$(FIRST_GOPATH)/bin/promu|PROMU        := /bin/promu|' Makefile.common
 
 %build
 export GOFLAGS="-mod=vendor -buildmode=pie"
 export BUILDTAGS="netgo builtinassets"
+%ifarch riscv64
+export GOMAXPROCS=1
+%endif
 make build
 
 %install
@@ -91,6 +98,11 @@ exit 0
 %dir %attr(755, prometheus, prometheus)%{_sharedstatedir}/prometheus
 
 %changelog
+* Wed Jul 02 2025 ZijianLi <zijian.oerv@isrc.iscas.ac.cn> - 2.53.3-2
+- Fix cgo enable on RISCV arch
+  * set cgo enable on RISCV architecture
+  * On the RISCV architecture, set GOMAXPROCS to 1, otherwise the build will hang.
+
 * Wed Dec 04 2024 jiangxinyu <jiangxinyu@kylinos.cn> - 2.53.3-1
 - Update package to version 2.53.3
   * Fix metric name include histogram error
diff --git a/set-riscv-cgo-enable.patch b/set-riscv-cgo-enable.patch
new file mode 100644
index 0000000..19bb91b
--- /dev/null
+++ b/set-riscv-cgo-enable.patch
@@ -0,0 +1,11 @@
+diff -Naur prometheus-2.53.3.org/.promu.yml prometheus-2.53.3/.promu.yml
+--- prometheus-2.53.3.org/.promu.yml	2025-06-29 19:52:07.579569328 +0800
++++ prometheus-2.53.3/.promu.yml	2025-06-29 22:27:55.798131520 +0800
+@@ -2,6 +2,7 @@
+     # Whenever the Go version is updated here,
+     # .github/workflows should also be updated.
+     version: 1.22
++    cgo: true
+ repository:
+     path: github.com/prometheus/prometheus
+ build:
-- 
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