[Buildroot] svn commit: trunk/buildroot: package
ninevoltz at uclibc.org
ninevoltz at uclibc.org
Wed Mar 12 13:07:14 UTC 2008
Author: ninevoltz
Date: 2008-03-12 06:07:10 -0700 (Wed, 12 Mar 2008)
New Revision: 21313
Log:
added more debugging options for packages
Modified:
trunk/buildroot/Config.in
trunk/buildroot/package/Makefile.in
Changeset:
Modified: trunk/buildroot/Config.in
===================================================================
--- trunk/buildroot/Config.in 2008-03-12 11:23:11 UTC (rev 21312)
+++ trunk/buildroot/Config.in 2008-03-12 13:07:10 UTC (rev 21313)
@@ -184,7 +184,44 @@
help
This option show recent versions of packages.
+config BR2_ENABLE_DEBUG
+ bool "build packages with debugging symbols"
+ default n
+ help
+ Build packages with debugging symbols
+ enabled
+
+if BR2_ENABLE_DEBUG
choice
+ prompt "gcc debug level"
+ default BR2_DEBUG_2
+ help
+ Set the debug level for gcc
+
+config BR2_DEBUG_1
+ bool "debug level 1"
+ help
+ Debug level 1 produces minimal information, enough
+ for making backtraces in parts of the program that
+ you don't plan to debug. This includes descriptions
+ of functions and external variables, but no information
+ about local variables and no line numbers.
+
+config BR2_DEBUG_2
+ bool "debug level 2"
+ help
+ The default gcc debug level is 2
+
+config BR2_DEBUG_3
+ bool "debug level 3"
+ help
+ Level 3 includes extra information, such as all the
+ macro definitions present in the program. Some debuggers
+ support macro expansion when you use -g3.
+endchoice
+endif
+
+choice
prompt "strip"
default BR2_STRIP_strip
help
@@ -196,12 +233,14 @@
config BR2_STRIP_strip
bool "strip"
+ depends !BR2_ENABLE_DEBUG
help
strip is the normal strip command
config BR2_STRIP_sstrip
bool "sstrip"
select BR2_PACKAGE_SSTRIP_HOST
+ depends !BR2_ENABLE_DEBUG
help
sstrip is a strip that discards more than the normal strip
@@ -211,15 +250,72 @@
none do not strip (only for debugging!)
endchoice
-if BR2_STRIP_none
-config BR2_ENABLE_DEBUG
- bool "build packages with debugging symbols"
- default n
+choice
+ prompt "gcc optimization level"
+ default BR2_OPTIMIZE_0
help
- Build packages with debugging symbols
- enabled
-endif
+ Set the optimization level for gcc
+config BR2_OPTIMIZE_0
+ bool "optimization level 0"
+ help
+ Do not optimize. This is the default.
+
+config BR2_OPTIMIZE_1
+ bool "optimization level 1"
+ help
+ Optimize. Optimizing compilation takes somewhat more time,
+ and a lot more memory for a large function. With -O, the
+ compiler tries to reduce code size and execution time,
+ without performing any optimizations that take a great deal
+ of compilation time. -O turns on the following optimization
+ flags: -fdefer-pop -fdelayed-branch -fguess-branch-probability
+ -fcprop-registers -floop-optimize -fif-conversion
+ -fif-conversion2 -ftree-ccp -ftree-dce -ftree-dominator-opts
+ -ftree-dse -ftree-ter -ftree-lrs -ftree-sra -ftree-copyrename
+ -ftree-fre -ftree-ch -funit-at-a-time -fmerge-constants
+ -O also turns on -fomit-frame-pointer on machines where doing
+ so does not interfere with debugging.
+
+config BR2_OPTIMIZE_2
+ bool "optimization level 2"
+ help
+ Optimize even more. GCC performs nearly all supported optimizations
+ that do not involve a space-speed tradeoff. The compiler does not
+ perform loop unrolling or function inlining when you specify -O2.
+ As compared to -O, this option increases both compilation time and
+ the performance of the generated code. -O2 turns on all optimization
+ flags specified by -O. It also turns on the following optimization
+ flags: -fthread-jumps -fcrossjumping -foptimize-sibling-calls
+ -fcse-follow-jumps -fcse-skip-blocks -fgcse -fgcse-lm
+ -fexpensive-optimizations -fstrength-reduce -frerun-cse-after-loop
+ -frerun-loop-opt -fcaller-saves -fpeephole2 -fschedule-insns
+ -fschedule-insns2 -fsched-interblock -fsched-spec -fregmove
+ -fstrict-aliasing -fdelete-null-pointer-checks -freorder-blocks
+ -freorder-functions -falign-functions -falign-jumps -falign-loops
+ -falign-labels -ftree-vrp -ftree-pre
+ Please note the warning under -fgcse about invoking -O2 on programs
+ that use computed gotos.
+
+config BR2_OPTIMIZE_3
+ bool "optimization level 3"
+ help
+ Optimize yet more. -O3 turns on all optimizations specified by -O2
+ and also turns on the -finline-functions, -funswitch-loops and
+ -fgcse-after-reload options.
+
+config BR2_OPTIMIZE_S
+ bool "optimize for size"
+ help
+ Optimize for size. -Os enables all -O2 optimizations that do not
+ typically increase code size. It also performs further optimizations
+ designed to reduce code size. -Os disables the following optimization
+ flags: -falign-functions -falign-jumps -falign-loops -falign-labels
+ -freorder-blocks -freorder-blocks-and-partition -fprefetch-loop-arrays
+ -ftree-vect-loop-version
+
+endchoice
+
config BR2_PREFER_STATIC_LIB
bool "prefer static libraries"
default n
Modified: trunk/buildroot/package/Makefile.in
===================================================================
--- trunk/buildroot/package/Makefile.in 2008-03-12 11:23:11 UTC (rev 21312)
+++ trunk/buildroot/package/Makefile.in 2008-03-12 13:07:10 UTC (rev 21313)
@@ -9,7 +9,32 @@
MAKE1:=$(HOSTMAKE) MAKE="$(firstword $(HOSTMAKE)) -j1"
MAKE:=$(HOSTMAKE) -j$(BR2_JLEVEL)
+ifeq ($(BR2_OPTIMIZE_0),y)
+TARGET_OPTIMIZATION=-O0
+endif
+ifeq ($(BR2_OPTIMIZE_1),y)
+TARGET_OPTIMIZATION=-O1
+endif
+ifeq ($(BR2_OPTIMIZE_2),y)
+TARGET_OPTIMIZATION=-O2
+endif
+ifeq ($(BR2_OPTIMIZE_3),y)
+TARGET_OPTIMIZATION=-O3
+endif
+ifeq ($(BR2_OPTIMIZE_S),y)
+TARGET_OPTIMIZATION=-Os
+endif
+ifeq ($(BR2_DEBUG_1),y)
+TARGET_DEBUGGING=-g1
+endif
+ifeq ($(BR2_DEBUG_2),y)
+TARGET_DEBUGGING=-g2
+endif
+ifeq ($(BR2_DEBUG_3),y)
+TARGET_DEBUGGING=-g3
+endif
+
#########################################################################
ifeq ($(BR2_TOOLCHAIN_SOURCE),y)
TARGET_CFLAGS=$(TARGET_OPTIMIZATION) $(TARGET_DEBUGGING) \
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