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This patch adds support for the M-profile MVE extension, which includes the following: - New M-profile XML feature m-profile-mve - MVE vector predication status and control register (VPR) - p0 pseudo register (contained in the VPR) - q0 ~ q7 pseudo vector registers - New feature bits - Documentation update Pseudo register p0 is the least significant bits of vpr and can be accessed as $p0 or displayed through $vpr. For more information about the register layout, please refer to [1]. The q0 ~ q7 registers map back to the d0 ~ d15 registers, two d registers per q register. The register dump looks like this: (gdb) info reg all r0 0x0 0 r1 0x0 0 r2 0x0 0 r3 0x0 0 r4 0x0 0 r5 0x0 0 r6 0x0 0 r7 0x0 0 r8 0x0 0 r9 0x0 0 r10 0x0 0 r11 0x0 0 r12 0x0 0 sp 0x0 0x0 <__Vectors> lr 0xffffffff -1 pc 0xd0c 0xd0c <Reset_Handler> xpsr 0x1000000 16777216 d0 0 (raw 0x0000000000000000) d1 0 (raw 0x0000000000000000) d2 0 (raw 0x0000000000000000) d3 0 (raw 0x0000000000000000) d4 0 (raw 0x0000000000000000) d5 0 (raw 0x0000000000000000) d6 0 (raw 0x0000000000000000) d7 0 (raw 0x0000000000000000) d8 0 (raw 0x0000000000000000) d9 0 (raw 0x0000000000000000) d10 0 (raw 0x0000000000000000) d11 0 (raw 0x0000000000000000) d12 0 (raw 0x0000000000000000) d13 0 (raw 0x0000000000000000) d14 0 (raw 0x0000000000000000) d15 0 (raw 0x0000000000000000) fpscr 0x0 0 vpr 0x0 [ P0=0 MASK01=0 MASK23=0 ] s0 0 (raw 0x00000000) s1 0 (raw 0x00000000) s2 0 (raw 0x00000000) s3 0 (raw 0x00000000) s4 0 (raw 0x00000000) s5 0 (raw 0x00000000) s6 0 (raw 0x00000000) s7 0 (raw 0x00000000) s8 0 (raw 0x00000000) s9 0 (raw 0x00000000) s10 0 (raw 0x00000000) s11 0 (raw 0x00000000) s12 0 (raw 0x00000000) s13 0 (raw 0x00000000) s14 0 (raw 0x00000000) s15 0 (raw 0x00000000) s16 0 (raw 0x00000000) s17 0 (raw 0x00000000) s18 0 (raw 0x00000000) s19 0 (raw 0x00000000) s20 0 (raw 0x00000000) s21 0 (raw 0x00000000) s22 0 (raw 0x00000000) s23 0 (raw 0x00000000) s24 0 (raw 0x00000000) s25 0 (raw 0x00000000) s26 0 (raw 0x00000000) s27 0 (raw 0x00000000) s28 0 (raw 0x00000000) s29 0 (raw 0x00000000) s30 0 (raw 0x00000000) s31 0 (raw 0x00000000) q0 {u8 = {0x0 <repeats 16 times>}, u16 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, u32 = {0x0, 0x0, 0x0, 0x0}, u64 = {0x0, 0x0}, f32 = {0x0, 0x0, 0x0, 0x0}, f64 = {0x0, 0x0}} q1 {u8 = {0x0 <repeats 16 times>}, u16 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, u32 = {0x0, 0x0, 0x0, 0x0}, u64 = {0x0, 0x0}, f32 = {0x0, 0x0, 0x0, 0x0}, f64 = {0x0, 0x0}} q2 {u8 = {0x0 <repeats 16 times>}, u16 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, u32 = {0x0, 0x0, 0x0, 0x0}, u64 = {0x0, 0x0}, f32 = {0x0, 0x0, 0x0, 0x0}, f64 = {0x0, 0x0}} q3 {u8 = {0x0 <repeats 16 times>}, u16 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, u32 = {0x0, 0x0, 0x0, 0x0}, u64 = {0x0, 0x0}, f32 = {0x0, 0x0, 0x0, 0x0}, f64 = {0x0, 0x0}} q4 {u8 = {0x0 <repeats 16 times>}, u16 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, u32 = {0x0, 0x0, 0x0, 0x0}, u64 = {0x0, 0x0}, f32 = {0x0, 0x0, 0x0, 0x0}, f64 = {0x0, 0x0}} q5 {u8 = {0x0 <repeats 16 times>}, u16 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, u32 = {0x0, 0x0, 0x0, 0x0}, u64 = {0x0, 0x0}, f32 = {0x0, 0x0, 0x0, 0x0}, f64 = {0x0, 0x0}} q6 {u8 = {0x0 <repeats 16 times>}, u16 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, u32 = {0x0, 0x0, 0x0, 0x0}, u64 = {0x0, 0x0}, f32 = {0x0, 0x0, 0x0, 0x0}, f64 = {0x0, 0x0}} q7 {u8 = {0x0 <repeats 16 times>}, u16 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, u32 = {0x0, 0x0, 0x0, 0x0}, u64 = {0x0, 0x0}, f32 = {0x0, 0x0, 0x0, 0x0}, f64 = {0x0, 0x0}} p0 0x0 0 Built and regtested with a simulator. [1] https://developer.arm.com/documentation/ddi0553/bn Co-Authored-By: Luis Machado <luis.machado@linaro.org>
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README for GNU development tools This directory contains various GNU compilers, assemblers, linkers, debuggers, etc., plus their support routines, definitions, and documentation. If you are receiving this as part of a GDB release, see the file gdb/README. If with a binutils release, see binutils/README; if with a libg++ release, see libg++/README, etc. That'll give you info about this package -- supported targets, how to use it, how to report bugs, etc. It is now possible to automatically configure and build a variety of tools with one command. To build all of the tools contained herein, run the ``configure'' script here, e.g.: ./configure make To install them (by default in /usr/local/bin, /usr/local/lib, etc), then do: make install (If the configure script can't determine your type of computer, give it the name as an argument, for instance ``./configure sun4''. You can use the script ``config.sub'' to test whether a name is recognized; if it is, config.sub translates it to a triplet specifying CPU, vendor, and OS.) If you have more than one compiler on your system, it is often best to explicitly set CC in the environment before running configure, and to also set CC when running make. For example (assuming sh/bash/ksh): CC=gcc ./configure make A similar example using csh: setenv CC gcc ./configure make Much of the code and documentation enclosed is copyright by the Free Software Foundation, Inc. See the file COPYING or COPYING.LIB in the various directories, for a description of the GNU General Public License terms under which you can copy the files. REPORTING BUGS: Again, see gdb/README, binutils/README, etc., for info on where and how to report problems.
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