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| 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 | 0a1daff4f2255e8444e0deedd5ce55aa42e79c76 (patch) | |
| tree | 150683b559e1de19aa7b8afbbcd88ff0036fa26c /toolchain/gcc | |
| parent | 11551d3e653cba1728517bc58b216d29a55b17e0 (diff) | |
| download | upstream-0a1daff4f2255e8444e0deedd5ce55aa42e79c76.tar.gz upstream-0a1daff4f2255e8444e0deedd5ce55aa42e79c76.tar.bz2 upstream-0a1daff4f2255e8444e0deedd5ce55aa42e79c76.zip | |
gcc: add some size optimization patches
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@45664 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'toolchain/gcc')
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 0000000000..b225376865 --- /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 0000000000..80c3476841 --- /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 0000000000..10cf323c08 --- /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 0000000000..80c3476841 --- /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 |