From b001e6e7407cd7e07bad533445eee7f0224cb268 Mon Sep 17 00:00:00 2001 From: David Goldblatt Date: Fri, 4 May 2018 10:44:17 -0700 Subject: [PATCH] INSTALL.md: Clarify --with-lg-vaddr. The current wording can be taken to imply that we return tagged pointers to the user, or otherwise rely on architectural support for them. --- INSTALL.md | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/INSTALL.md b/INSTALL.md index cd05ccba..ef328c60 100644 --- a/INSTALL.md +++ b/INSTALL.md @@ -262,11 +262,10 @@ any of the following arguments (not a definitive list) to 'configure': * `--with-lg-vaddr=` - Specify the number of significant virtual address bits. jemalloc uses - pointer tagging if the pointer size is bigger than the required size for - virtual addresses. By default the configure script determines this via CPUID - information on x86_64 and uses default values for other architectures. This - option may be useful when cross compiling. + Specify the number of significant virtual address bits. By default, the + configure script attempts to detect virtual address size on those platforms + where it knows how, and picks a default otherwise. This option may be + useful when cross-compiling. * `--disable-initial-exec-tls`