KBUILD_CFLAGS += -mbackchain -msoft-float $(cflags-y)
KBUILD_CFLAGS += -pipe -fno-strength-reduce -Wno-sign-compare
+KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
KBUILD_AFLAGS += $(aflags-y)
OBJCOPYFLAGS := -O binary
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_S390_DWARF_H
+#define _ASM_S390_DWARF_H
+
+#ifdef __ASSEMBLY__
+
+#ifndef BUILD_VDSO
+ /*
+ * Emit CFI data in .debug_frame sections and not in .eh_frame
+ * sections. The .eh_frame CFI is used for runtime unwind
+ * information that is not being used. Hence, vmlinux.lds.S
+ * can discard the .eh_frame sections.
+ */
+ .cfi_sections .debug_frame
+#else
+ /*
+ * For vDSO, emit CFI data in both, .eh_frame and .debug_frame
+ * sections.
+ */
+ .cfi_sections .eh_frame, .debug_frame
+#endif
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _ASM_S390_DWARF_H */
targets := $(obj-vdso32) vdso32.so vdso32.so.dbg
obj-vdso32 := $(addprefix $(obj)/, $(obj-vdso32))
+KBUILD_AFLAGS += -DBUILD_VDSO
+KBUILD_CFLAGS += -DBUILD_VDSO
+
KBUILD_AFLAGS_31 := $(filter-out -m64,$(KBUILD_AFLAGS))
KBUILD_AFLAGS_31 += -m31 -s
#include <asm/vdso.h>
#include <asm/asm-offsets.h>
#include <asm/unistd.h>
+#include <asm/dwarf.h>
.text
.align 4
#include <asm/vdso.h>
#include <asm/asm-offsets.h>
#include <asm/unistd.h>
+#include <asm/dwarf.h>
.text
.align 4
*/
#include <asm/vdso.h>
#include <asm/asm-offsets.h>
+#include <asm/dwarf.h>
.text
.align 4
#include <asm/vdso.h>
#include <asm/asm-offsets.h>
#include <asm/unistd.h>
+#include <asm/dwarf.h>
.text
.align 4
targets := $(obj-vdso64) vdso64.so vdso64.so.dbg
obj-vdso64 := $(addprefix $(obj)/, $(obj-vdso64))
+KBUILD_AFLAGS += -DBUILD_VDSO
+KBUILD_CFLAGS += -DBUILD_VDSO
+
KBUILD_AFLAGS_64 := $(filter-out -m64,$(KBUILD_AFLAGS))
KBUILD_AFLAGS_64 += -m64 -s
#include <asm/vdso.h>
#include <asm/asm-offsets.h>
#include <asm/unistd.h>
+#include <asm/dwarf.h>
.text
.align 4
#include <asm/vdso.h>
#include <asm/asm-offsets.h>
#include <asm/unistd.h>
+#include <asm/dwarf.h>
.text
.align 4
*/
#include <asm/vdso.h>
#include <asm/asm-offsets.h>
+#include <asm/dwarf.h>
.text
.align 4
#include <asm/vdso.h>
#include <asm/asm-offsets.h>
#include <asm/unistd.h>
+#include <asm/dwarf.h>
.text
.align 4
/* Sections to be discarded */
DISCARDS
+ /DISCARD/ : {
+ *(.eh_frame)
+ }
}