pmap: make 32-bit version work better on 64-bit kernels

[oweals/busybox.git] / include / libbb.h

diff --git a/include/libbb.h b/include/libbb.h
index daa96728b2524744a6d59caf1d504ee6948947b8..d2563999a1bc8fbb9295250b96cf0dfc58756ab4 100644 (file)
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -1828,7 +1828,12 @@ struct smaprec {
        unsigned long stack;
        unsigned long smap_pss, smap_swap;
        unsigned long smap_size;
-       unsigned long smap_start;
+       // For mixed 32/64 userspace, 32-bit pmap still needs
+       // 64-bit field here to correctly show 64-bit processes:
+       unsigned long long smap_start;
+       // (strictly speaking, other fields need to be wider too,
+       // but they are in kbytes, not bytes, and they hold sizes,
+       // not start addresses, sizes tend to be less than 4 terabytes)
        char smap_mode[5];
        char *smap_name;
 };