From 14ef97907211bb78ae8826b218e5a82cb29ae67b Mon Sep 17 00:00:00 2001
From: Joel Rosdahl <joel@rosdahl.net>
Date: Tue, 25 Oct 2022 21:28:04 +0200
Subject: [PATCH] fix: Use separate 32-bit and 64-bit inode cache files

The memory layout of the shared region differs between 32-bit and 64-bit
ccache binaries, so use different inode cache files.
---
 src/InodeCache.cpp           | 4 +++-
 test/suites/inode_cache.bash | 2 +-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/InodeCache.cpp b/src/InodeCache.cpp
index df928d4fd..5985cd5b6 100644
--- a/src/InodeCache.cpp
+++ b/src/InodeCache.cpp
@@ -498,7 +498,9 @@ InodeCache::drop()
 std::string
 InodeCache::get_file()
 {
-  return FMT("{}/inode-cache.v{}", m_config.temporary_dir(), k_version);
+  const uint8_t arch_bits = 8 * sizeof(void*);
+  return FMT(
+    "{}/inode-cache-{}.v{}", m_config.temporary_dir(), arch_bits, k_version);
 }
 
 int64_t
diff --git a/test/suites/inode_cache.bash b/test/suites/inode_cache.bash
index a09ac5d78..e53bf8b20 100644
--- a/test/suites/inode_cache.bash
+++ b/test/suites/inode_cache.bash
@@ -9,7 +9,7 @@ SUITE_inode_cache_PROBE() {
 
     touch test.c
     $CCACHE $COMPILER -c test.c
-    if [[ ! -f "${CCACHE_TEMPDIR}/inode-cache.v1" ]]; then
+    if [[ ! -f "${CCACHE_TEMPDIR}/inode-cache-32.v1" && ! -f "${CCACHE_TEMPDIR}/inode-cache-64.v1" ]]; then
         local fs_type=$(stat -fLc %T "${CCACHE_DIR}")
         echo "inode cache not supported on ${fs_type}"
     fi
-- 
2.47.2