diff options
| author | Felix Fietkau <nbd@openwrt.org> | 2015-05-10 13:16:35 +0000 |
|---|---|---|
| committer | Felix Fietkau <nbd@openwrt.org> | 2015-05-10 13:16:35 +0000 |
| commit | 64661de100da1ec1061ef3e5e400285dce115e6b (patch) | |
| tree | 5ec47c5faf5a4345b4cf5f53a273e48aec66a051 | |
| parent | cfb56b481131f601d5a587a8d89a752b1fd54d0b (diff) | |
| download | mtk-20170518-64661de100da1ec1061ef3e5e400285dce115e6b.zip mtk-20170518-64661de100da1ec1061ef3e5e400285dce115e6b.tar.gz mtk-20170518-64661de100da1ec1061ef3e5e400285dce115e6b.tar.bz2 | |
gcc: add some size optimization patches
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
SVN-Revision: 45664
4 files changed, 80 insertions, 0 deletions
diff --git a/toolchain/gcc/patches/4.8-linaro/020-no-plt-backport.patch b/toolchain/gcc/patches/4.8-linaro/020-no-plt-backport.patch new file mode 100644 index 0000000..b225376 --- /dev/null +++ b/toolchain/gcc/patches/4.8-linaro/020-no-plt-backport.patch @@ -0,0 +1,28 @@ +--- a/gcc/calls.c ++++ b/gcc/calls.c +@@ -176,6 +176,12 @@ prepare_call_address (tree fndecl, rtx f + && targetm.small_register_classes_for_mode_p (FUNCTION_MODE)) + ? force_not_mem (memory_address (FUNCTION_MODE, funexp)) + : memory_address (FUNCTION_MODE, funexp)); ++ else if (flag_pic && !flag_plt && fndecl ++ && TREE_CODE (fndecl) == FUNCTION_DECL ++ && !targetm.binds_local_p (fndecl)) ++ { ++ funexp = force_reg (Pmode, funexp); ++ } + else if (! sibcallp) + { + #ifndef NO_FUNCTION_CSE +--- a/gcc/common.opt ++++ b/gcc/common.opt +@@ -1617,6 +1617,10 @@ fpie + Common Report Var(flag_pie,1) Negative(fPIC) + Generate position-independent code for executables if possible (small mode) + ++fplt ++Common Report Var(flag_plt) Init(1) ++Use PLT for PIC calls (-fno-plt: load the address from GOT at call site) ++ + fplugin= + Common Joined RejectNegative Var(common_deferred_options) Defer + Specify a plugin to load diff --git a/toolchain/gcc/patches/4.8-linaro/851-libgcc_no_compat.patch b/toolchain/gcc/patches/4.8-linaro/851-libgcc_no_compat.patch new file mode 100644 index 0000000..80c3476 --- /dev/null +++ b/toolchain/gcc/patches/4.8-linaro/851-libgcc_no_compat.patch @@ -0,0 +1,12 @@ +--- a/libgcc/config/t-libunwind ++++ b/libgcc/config/t-libunwind +@@ -2,8 +2,7 @@ + + HOST_LIBGCC2_CFLAGS += -DUSE_GAS_SYMVER + +-LIB2ADDEH = $(srcdir)/unwind-sjlj.c $(srcdir)/unwind-c.c \ +- $(srcdir)/unwind-compat.c $(srcdir)/unwind-dw2-fde-compat.c ++LIB2ADDEH = $(srcdir)/unwind-sjlj.c $(srcdir)/unwind-c.c + LIB2ADDEHSTATIC = $(srcdir)/unwind-sjlj.c $(srcdir)/unwind-c.c + + # Override the default value from t-slibgcc-elf-ver and mention -lunwind diff --git a/toolchain/gcc/patches/4.9-linaro/020-no-plt-backport.patch b/toolchain/gcc/patches/4.9-linaro/020-no-plt-backport.patch new file mode 100644 index 0000000..10cf323 --- /dev/null +++ b/toolchain/gcc/patches/4.9-linaro/020-no-plt-backport.patch @@ -0,0 +1,28 @@ +--- a/gcc/calls.c ++++ b/gcc/calls.c +@@ -184,6 +184,12 @@ prepare_call_address (tree fndecl, rtx f + && targetm.small_register_classes_for_mode_p (FUNCTION_MODE)) + ? force_not_mem (memory_address (FUNCTION_MODE, funexp)) + : memory_address (FUNCTION_MODE, funexp)); ++ else if (flag_pic && !flag_plt && fndecl ++ && TREE_CODE (fndecl) == FUNCTION_DECL ++ && !targetm.binds_local_p (fndecl)) ++ { ++ funexp = force_reg (Pmode, funexp); ++ } + else if (! sibcallp) + { + #ifndef NO_FUNCTION_CSE +--- a/gcc/common.opt ++++ b/gcc/common.opt +@@ -1659,6 +1659,10 @@ fpie + Common Report Var(flag_pie,1) Negative(fPIC) + Generate position-independent code for executables if possible (small mode) + ++fplt ++Common Report Var(flag_plt) Init(1) ++Use PLT for PIC calls (-fno-plt: load the address from GOT at call site) ++ + fplugin= + Common Joined RejectNegative Var(common_deferred_options) Defer + Specify a plugin to load diff --git a/toolchain/gcc/patches/4.9-linaro/851-libgcc_no_compat.patch b/toolchain/gcc/patches/4.9-linaro/851-libgcc_no_compat.patch new file mode 100644 index 0000000..80c3476 --- /dev/null +++ b/toolchain/gcc/patches/4.9-linaro/851-libgcc_no_compat.patch @@ -0,0 +1,12 @@ +--- a/libgcc/config/t-libunwind ++++ b/libgcc/config/t-libunwind +@@ -2,8 +2,7 @@ + + HOST_LIBGCC2_CFLAGS += -DUSE_GAS_SYMVER + +-LIB2ADDEH = $(srcdir)/unwind-sjlj.c $(srcdir)/unwind-c.c \ +- $(srcdir)/unwind-compat.c $(srcdir)/unwind-dw2-fde-compat.c ++LIB2ADDEH = $(srcdir)/unwind-sjlj.c $(srcdir)/unwind-c.c + LIB2ADDEHSTATIC = $(srcdir)/unwind-sjlj.c $(srcdir)/unwind-c.c + + # Override the default value from t-slibgcc-elf-ver and mention -lunwind |