procfs: fix format of maps file

The commit ab6a9af replacing osv::fprintf() with osv::sprintf() introduced a bug in the /proc/self/maps content formatting that causes wrong limits to get printed: 0000000e1000-0000000e3000 r--p 00000000 652925e:ef2fe932 26 /cat 0000000e3000-0000000e7000 r-xp 00002000 652925e:ef2fe932 26 /cat vs 1000000e1000-1000000e3000 r--p 00000000 6182828:898a8198 26 /cat 1000000e3000-1000000e7000 r-xp 00002000 6182828:898a8198 26 /cat This patch fixes the problem by adjusting sprintf() format string. Signed-off-by: Waldemar Kozaczuk <[email protected]>
cloudius-systems · Nov 12, 2024 · c16f17b · c16f17b
1 parent c49fefe
commit c16f17b
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/core/mmu.cc b/core/mmu.cc
@@ -2094,7 +2094,7 @@ std::string procfs_maps()
             char write   = vma.perm() & perm_write ? 'w' : '-';
             char execute = vma.perm() & perm_exec  ? 'x' : '-';
             char priv    = 'p';
-            output += osv::sprintf("%012x-%012x %c%c%c%c ", vma.start(), vma.end(), read, write, execute, priv);
+            output += osv::sprintf("%lx-%lx %c%c%c%c ", vma.start(), vma.end(), read, write, execute, priv);
             if (vma.flags() & mmap_file) {
                 const file_vma &f_vma = static_cast<file_vma&>(vma);
                 unsigned dev_id_major = major(f_vma.file_dev_id());