Changeset 9780584 in mainline for uspace/lib/c/arch/ia32/Makefile.common

Timestamp:

2017-06-05T16:21:21Z (7 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

a961619

Parents:

7a99507

Message:

Use -ffunction-sections and —gc-sections

This change results in vast reduction of binary image sizes. For example, the
amd64 ISO image was 38MiB before this change and is only 25MiB after the change.

Unfortunately the ia64 linker ignores —gc-sections for some reason so it cannot
be turned on globally.

File:

• uspace/lib/c/arch/ia32/Makefile.common (modified) (1 diff)

uspace/lib/c/arch/ia32/Makefile.common

@@ -28 +28 @@
 
 ifeq ($(PROCESSOR),i486)
-        GCC_CFLAGS += -march=i486 -mno-tls-direct-seg-refs -fno-omit-frame-pointer
+        GCC_CFLAGS += -march=i486 
 else
-        GCC_CFLAGS += -march=pentium -mno-tls-direct-seg-refs -fno-omit-frame-pointer
+        GCC_CFLAGS += -march=pentium
 endif
 
+GCC_CFLAGS += -mno-tls-direct-seg-refs -fno-omit-frame-pointer
 CLANG_CFLAGS += -fno-omit-frame-pointer
+LFLAGS += --gc-sections
 
 ENDIANESS = LE