gcc: rip out transactional memory related bloat from crtbegin

Slightly improves compression for each executable, saving about 4k from
the default ar71xx rootfs

Signed-off-by: Felix Fietkau <nbd@nbd.name>

diff --git a/toolchain/gcc/patches/5.4.0/881-no_tm_section.patch b/toolchain/gcc/patches/5.4.0/881-no_tm_section.patch
new file mode 100644 (file)
index 0000000..fab5db3
--- /dev/null
+++ b/toolchain/gcc/patches/5.4.0/881-no_tm_section.patch
@@ -0,0 +1,11 @@
+--- a/libgcc/crtstuff.c
++++ b/libgcc/crtstuff.c
+@@ -152,7 +152,7 @@ call_ ## FUNC (void)                                       \
+ #endif
+ 
+ #if !defined(USE_TM_CLONE_REGISTRY) && defined(OBJECT_FORMAT_ELF)
+-# define USE_TM_CLONE_REGISTRY 1
++# define USE_TM_CLONE_REGISTRY 0
+ #endif
+ 
+ /* We do not want to add the weak attribute to the declarations of these

diff --git a/toolchain/gcc/patches/6.2.0/881-no_tm_section.patch b/toolchain/gcc/patches/6.2.0/881-no_tm_section.patch
new file mode 100644 (file)
index 0000000..fab5db3
--- /dev/null
+++ b/toolchain/gcc/patches/6.2.0/881-no_tm_section.patch
@@ -0,0 +1,11 @@
+--- a/libgcc/crtstuff.c
++++ b/libgcc/crtstuff.c
+@@ -152,7 +152,7 @@ call_ ## FUNC (void)                                       \
+ #endif
+ 
+ #if !defined(USE_TM_CLONE_REGISTRY) && defined(OBJECT_FORMAT_ELF)
+-# define USE_TM_CLONE_REGISTRY 1
++# define USE_TM_CLONE_REGISTRY 0
+ #endif
+ 
+ /* We do not want to add the weak attribute to the declarations of these