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2015-08-03 Sandra Loosemore <sandra@codesourcery.com> gdb/ * nios2-tdep.h: Include opcode/nios2.h here. (NIOS2_CDX_OPCODE_SIZE): New. (struct gdbarch_tdep): Add OP parameter to syscall_next_pc. * nios2-tdep.c: Don't include opcode/nios2.h here. (nios2_fetch_insn): For R2, try reading 2-byte instruction if 4-byte read fails. (nios2_match_add, nios2_match_sub): Add cases for R2 encodings. (nios2_match_addi, nios2_match_orhi): Likewise. (nios2_match_stw, nios2_match_ldw): Likewise. (nios2_match_rdctl): Likewise. (nios2_match_stwm, nios2_match_ldwm): New. (nios2_match_branch): Add cases for R2 encodings. (nios2_match_jmpi, nios2_match_calli): Likewise. (nios2_match_jmpr, nios2_match_callr): Likewise. (nios2_match_break, nios2_match_trap): Likewise. (nios2_in_epilogue_p): Add R2 support. (nios2_analyze_prologue): Update comments. Recognize R2 CDX prologues. (nios2_breakpoint_from_pc): Handle R2 instructions. (nios2_get_next_pc): Likewise. Adjust call to tdep->syscall_next_pc. * nios2-linux-tdep.c (nios2_r1_linux_rt_sigreturn_tramp_frame): Renamed from nios2_linux_rt_sigreturn_tramp_frame. Use instruction field macros instead of literal hex values. (nios2_r2_linux_rt_sigreturn_tramp_frame): New. (nios2_linux_syscall_next_pc): Adjust signature to pass OP. Use size field from OP instead of assuming all instructions are the same size. (nios2_linux_init_abi): Register appropriate unwinder for mach. gdb/gdbserver/ * linux-nios2-low.c (NIOS2_BREAKPOINT): Conditionalize for arch variant. (CDX_BREAKPOINT): Define for R2. (nios2_breakpoint_at): Check for CDX_BREAKPOINT when R2. (the_low_target): Add comments.
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.