From c4427747e6e5890b65c70e8fad5b30309b2b0279 Mon Sep 17 00:00:00 2001 From: Michael Matz Date: Sat, 5 Apr 2014 22:54:11 +0200 Subject: arm: Provide alloca() This provides a simple implementation of alloca for ARM (and enables the associated testcase). As tcc for ARM doesn't contain an assembler, we'll have to resort using gcc for compiling it. --- lib/Makefile | 4 ++-- lib/alloca-arm.S | 11 +++++++++++ 2 files changed, 13 insertions(+), 2 deletions(-) create mode 100644 lib/alloca-arm.S (limited to 'lib') diff --git a/lib/Makefile b/lib/Makefile index 7ef267f..cf3cd71 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -45,7 +45,7 @@ cross : TCC = $(TOP)/$(TARGET)-tcc$(EXESUF) I386_O = libtcc1.o alloca86.o alloca86-bt.o $(BCHECK_O) X86_64_O = libtcc1.o alloca86_64.o -ARM_O = libtcc1.o armeabi.o +ARM_O = libtcc1.o armeabi.o alloca-arm.o WIN32_O = $(I386_O) crt1.o wincrt1.o dllcrt1.o dllmain.o chkstk.o WIN64_O = $(X86_64_O) crt1.o wincrt1.o dllcrt1.o dllmain.o chkstk.o @@ -104,7 +104,7 @@ $(DIR)/libtcc1.a ../libtcc1.a : $(OBJ) $(XAR) $(DIR)/%.o : %.c $(XCC) -c $< -o $@ $(XFLAGS) $(DIR)/%.o : %.S - $(XCC) -c $< -o $@ $(XFLAGS) + $(CC) -c $< -o $@ $(XFLAGS) $(DIR)/%$(EXESUF) : $(TOP)/win32/tools/%.c $(CC) -o $@ $< $(XFLAGS) $(LDFLAGS) diff --git a/lib/alloca-arm.S b/lib/alloca-arm.S new file mode 100644 index 0000000..9deae63 --- /dev/null +++ b/lib/alloca-arm.S @@ -0,0 +1,11 @@ + .text + .align 2 + .global alloca + .type alloca, %function +alloca: + rsb sp, r0, sp + bic sp, sp, #7 + mov r0, sp + mov pc, lr + .size alloca, .-alloca + .section .note.GNU-stack,"",%progbits -- cgit v1.3.1