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Function for reading the Aarch64 SVE vector length

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Returns 0 for systems without SVE support.

Note the defines taken from Linux kernel headers
in aarch64-sve-linux-ptrace.h.

gdb/
	* Makefile.in: Add new header.
	* gdb/arch/aarch64.h (sve_vg_from_vl): New macro.
	(sve_vl_from_vg): Likewise.
	(sve_vq_from_vl): Likewise.
	(sve_vl_from_vq): Likewise.
	(sve_vq_from_vg): Likewise.
	(sve_vg_from_vq): Likewise.
	* configure.nat: Add new c file.
	* nat/aarch64-sve-linux-ptrace.c: New file.
	* nat/aarch64-sve-linux-ptrace.h: New file.

gdbserver/
	* configure.srv: Add new c/h file.
This commit is contained in:
Alan Hayward
2018-05-31 14:36:48 +01:00
parent 95228a0d79
commit 122394f147
8 changed files with 169 additions and 1 deletions
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3
gdb/configure.nat
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@ -228,7 +228,8 @@ case ${gdb_host} in
aarch64)
# Host: AArch64 based machine running GNU/Linux
NATDEPFILES="${NATDEPFILES} aarch64-linux-nat.o \
aarch32-linux-nat.o aarch64-linux-hw-point.o aarch64-linux.o"
aarch32-linux-nat.o aarch64-linux-hw-point.o aarch64-linux.o \
aarch64-sve-linux-ptrace.o"
;;
arm)
# Host: ARM based machine running GNU/Linux