gcc-4.3.1/README.android

This is a customized gcc-4.3.1 for the Android platform.  It is based on the
FSF gcc-4.3.1 release with the following modification listed in reversed
chronological order.

2009-04-21  Doug Kwan  <dougkwan@google.com>

	Patch arm.md for gcc bug 40153.

	http://gcc.gnu.org/viewcvs?view=rev&revision=147613

	Changed File:

	gcc/config/arm/arm.md

2009-04-02  Doug Kwan  <dougkwan@google.com>

	Bring 4.3.1 to the same set of patches as 4.2.1 and shave
	1 instruction off aeabi_lmul.

	Changed Files:

	gcc/config/arm/eabi.h: Add -Bdynamic in linker spec.
	Make "-fno-exceptions -fpic -fno-short-enums -mthumb-interwork"
	default C flags.
	gcc/config/arm/eabi.opt: Allow -mno-android.
	gcc/config/arm/t-arm-elf: Add -mthumb-interwork and -mandroid
	multilib options.
	gcc/doc/invoke.texi: Document -mandroid.
	gcc/gcc.c: Remove automatic -mandroid.
	gcc/tree-ssa-structalias.c: Fix qsort instability.
	gcc/lib1funcs.asm: Reduce one instruction from aeabi_lmul
	and also handle cases for THUMB2 and older ARMs.
	
2009-02-20  Doug Kwan  <dougkwan@google.com>

	Use -mandroid by default for arm-eabi.

	Changed Files:

	gcc/gcc.c

2009-02-16  Doug Kwan  <dougkwan@google.com>

	Port 2 patches from gcc-patches mailing list to fix NEON breakage.

	http://gcc.gnu.org/ml/gcc-patches/2008-06/msg00085.html
	http://gcc.gnu.org/ml/gcc-patches/2008-07/msg00134.html

	Changed Files:

	gcc/config/arm/arm.c

2008-07-14  Doug Kwan  <dougkwan@google.com>

	Port this patch from gcc-patches mailing list.

	http://gcc.gnu.org/ml/gcc-patches/2008-07/msg01051.html

	to implement Android specific behaviours in gcc, controllable
	using a single -mandroid option of the arm*-*-eabi* targets.
	The -mandroid option controls:

	- names of startfile and endfile.
	- list of standard C libraries (libc and, for dynamic
	  executables, libdl)
	- name of run-time linker (/system/bin/linker)
	- Default C option (-fno-excetpions)
	- Default C++ option (-fno-rtti)
	- Standand define (__ANDROID__)
	- Low level linker flags for -shared, -dynamic, -static and -rdynamic.

	Changed Files:

	gcc/config.gcc
	gcc/config/arm/bpabi.h
	gcc/config/arm/eabi.h
	gcc/config/arm/eabi.opt
	gcc/config/arm/elf.h
	gcc/config/arm/unknown-elf.h

2008-07-01  Doug Kwan  <dougkwan@google.com>

	Port __aeabi_umul optimization patch from trunk.

	http://gcc.gnu.org/ml/gcc-patches/2008-07/msg00057.html

	The patch implements __aeabi_lmul in hand-optimized ARM assembly.

	Changed file:

	gcc/config/arm/lib1funcs.asm
	gcc/config/arm/t-arm-coff
	gcc/config/arm/t-arm-elf
	gcc/config/arm/t-linux
	gcc/config/arm/t-pe
	gcc/config/arm/t-strongarm-elf
	gcc/config/arm/t-symbian
	gcc/config/arm/t-vxworks
	gcc/config/arm/t-wince-pe

2008-06-22  Doug Kwan  <dougkwan@google.com>

	Back-port clz optimization patch

	http://gcc.gnu.org/ml/gcc-patches/2008-06/msg00799.html

	from trunk.  This is similar to the clz optimization patch in Android
	gcc-4.2.1 but the patch has been modified by one of the ARM port
	maintainers.  The back-ported patch has been slightly modified due to
	difference between gcc-4.3.1 and trunk.

2008-06-21  Doug Kwan  <dougkwan@google.com>

	Fix code generation bug when both -fPIC and -fstack-fstack-protector
	are given.  The is an associated gcc bug 36480 but the problem is
	still not resolved in trunk.

	Changed file:
	
	gcc/config/arm/arm.c

2008-06-20  Doug Kwan  <dougkwan@google.com>

	Apply the second patch in
	http://gcc.gnu.org/ml/gcc-patches/2008-04/msg01577.html
	to fix ICE in register renamer.

	Changed file:

	gcc/regrename.c

2008-06-20  Doug Kwan  <dougkwan@google.com>

	Apply part of the fix in bug 37156.

	Changed file:

	gcc/pretty-print.c