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# HG changeset patch # User Richard Strand <richard.strand@icomera.com> # Date 1265028988 0 # Node ID f1dc942a12c2d84f2b62bc336627f2f540c4bbf7 # Parent 160fc94ed49f0e7697df6427d6a9e772ef94857f libc/eglibc: Add option to optimize for size Add an option to eglibc to optimize for size using -Os. Signed-off-by: Richard Strand <richard.strand@icomera.com> diff -r 160fc94ed49f -r f1dc942a12c2 config/libc/eglibc.in --- a/config/libc/eglibc.in Sun Jan 31 23:04:35 2010 +0100 +++ b/config/libc/eglibc.in Mon Feb 01 12:56:28 2010 +0000 @@ -95,6 +95,13 @@ Note that crosstool-NG will *not* update your working copy, you will have to do that yourself. +config EGLIBC_OPT_SIZE + bool + prompt "optimize eglibc for size (-Os)" + help + Optimize eglibc for size using -Os instead of -O2. This will make eglibc + smaller but may make it slower. + config EGLIBC_CUSTOM_CONFIG bool prompt "Use custom configuration file" diff -r 160fc94ed49f -r f1dc942a12c2 scripts/build/libc/eglibc.sh --- a/scripts/build/libc/eglibc.sh Sun Jan 31 23:04:35 2010 +0100 +++ b/scripts/build/libc/eglibc.sh Mon Feb 01 12:56:28 2010 +0000 @@ -259,6 +259,12 @@ CT_DoExecLog ALL cp "${CT_CONFIG_DIR}/eglibc.config" option-groups.config fi + if [ "${CT_EGLIBC_OPT_SIZE}" = "y" ]; then + OPTIMIZE=-Os + else + OPTIMIZE=-O2 + fi + # Add some default glibc config options if not given by user. # We don't need to be conditional on wether the user did set different # values, as they CT_LIBC_GLIBC_EXTRA_CONFIG is passed after extra_config @@ -301,7 +307,7 @@ CT_DoLog DEBUG "Extra CC args passed : '${extra_cc_args}'" BUILD_CC="${CT_BUILD}-gcc" \ - CFLAGS="${CT_TARGET_CFLAGS} ${CT_LIBC_GLIBC_EXTRA_CFLAGS} -O2" \ + CFLAGS="${CT_TARGET_CFLAGS} ${CT_LIBC_GLIBC_EXTRA_CFLAGS} ${OPTIMIZE}" \ CC="${CT_TARGET}-gcc ${CT_LIBC_EXTRA_CC_ARGS} ${extra_cc_args}" \ AR=${CT_TARGET}-ar \ RANLIB=${CT_TARGET}-ranlib \ -- For unsubscribe information see http://sourceware.org/lists.html#faq
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