forked from Imagelibrary/binutils-gdb
Add OpenBSD/powerpc support.
* NEWS (New native configurations): Mention OpenBSD/powerpc. * ppc-tdep.h (struct ppc_reg_offsets): New structure. (ppc_supply_gregset, ppc_supply_fpregset, ppc_collect_gregset) (ppc_collect_fpregset): New prototypes. * ppcobsd-nat.c: New file. * ppcobsd-tdep.c: New file. * ppcobsd-tdep.h: New file. * rs6000-tdep.c: Include "regset.h". (ppc_supply_reg, ppc_collect_reg, ppc_supply_gregset) (ppc_supply_fpregset, ppc_collect_gregset, ppc_collect_fpregset): New functions. * Makefile.in (ALLDEPFILES): Add pccobsd-nat.c and ppcobsd-tdep.c. (ppcobsd-nat.o, ppcobsd-tdep.o): New dependencies. (rs6000-tdep.o): Update dependencies. * configure.host: Add powerpc-*-openbsd. * configure.tgt: Add powerpc-*-openbsd. * config/powerpc/obsd.mh: New file. * config/powerpc/nm-obsd.h: New file. * config/powerpc/obsd.mt: New file.
This commit is contained in:
Mark Kettenis
@@ -31,6 +31,7 @@
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#include "objfiles.h"
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#include "arch-utils.h"
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#include "regcache.h"
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#include "regset.h"
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#include "doublest.h"
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#include "value.h"
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#include "parser-defs.h"
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@@ -150,6 +151,166 @@ ppc_floating_point_unit_p (struct gdbarch *gdbarch)
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return 1;
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return 0;
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}
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/* Register set support functions. */
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static void
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ppc_supply_reg (struct regcache *regcache, int regnum,
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const char *regs, size_t offset)
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{
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if (regnum != -1 && offset != -1)
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regcache_raw_supply (regcache, regnum, regs + offset);
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}
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static void
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ppc_collect_reg (const struct regcache *regcache, int regnum,
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char *regs, size_t offset)
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{
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if (regnum != -1 && offset != -1)
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regcache_raw_collect (regcache, regnum, regs + offset);
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}
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/* Supply register REGNUM in the general-purpose register set REGSET
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from the buffer specified by GREGS and LEN to register cache
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REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
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void
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ppc_supply_gregset (const struct regset *regset, struct regcache *regcache,
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int regnum, const void *gregs, size_t len)
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{
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struct gdbarch *gdbarch = get_regcache_arch (regcache);
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struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
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const struct ppc_reg_offsets *offsets = regset->descr;
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size_t offset;
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int i;
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for (i = 0, offset = offsets->r0_offset; i < 32; i++, offset += 4)
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{
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if (regnum == -1 || regnum == i)
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ppc_supply_reg (regcache, i, gregs, offset);
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}
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if (regnum == -1 || regnum == PC_REGNUM)
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ppc_supply_reg (regcache, PC_REGNUM, gregs, offsets->pc_offset);
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if (regnum == -1 || regnum == tdep->ppc_ps_regnum)
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ppc_supply_reg (regcache, tdep->ppc_ps_regnum,
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gregs, offsets->ps_offset);
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if (regnum == -1 || regnum == tdep->ppc_cr_regnum)
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ppc_supply_reg (regcache, tdep->ppc_cr_regnum,
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gregs, offsets->cr_offset);
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if (regnum == -1 || regnum == tdep->ppc_lr_regnum)
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ppc_supply_reg (regcache, tdep->ppc_lr_regnum,
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gregs, offsets->lr_offset);
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if (regnum == -1 || regnum == tdep->ppc_ctr_regnum)
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ppc_supply_reg (regcache, tdep->ppc_ctr_regnum,
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gregs, offsets->ctr_offset);
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if (regnum == -1 || regnum == tdep->ppc_xer_regnum)
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ppc_supply_reg (regcache, tdep->ppc_xer_regnum,
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gregs, offsets->cr_offset);
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if (regnum == -1 || regnum == tdep->ppc_mq_regnum)
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ppc_supply_reg (regcache, tdep->ppc_mq_regnum, gregs, offsets->mq_offset);
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}
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/* Supply register REGNUM in the floating-point register set REGSET
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from the buffer specified by FPREGS and LEN to register cache
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REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
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void
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ppc_supply_fpregset (const struct regset *regset, struct regcache *regcache,
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int regnum, const void *fpregs, size_t len)
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{
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struct gdbarch *gdbarch = get_regcache_arch (regcache);
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struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
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const struct ppc_reg_offsets *offsets = regset->descr;
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size_t offset;
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int i;
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offset = offsets->f0_offset;
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for (i = FP0_REGNUM; i < FP0_REGNUM + 32; i++, offset += 4)
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{
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if (regnum == -1 || regnum == i)
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ppc_supply_reg (regcache, i, fpregs, offset);
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}
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if (regnum == -1 || regnum == tdep->ppc_fpscr_regnum)
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ppc_supply_reg (regcache, tdep->ppc_fpscr_regnum,
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fpregs, offsets->fpscr_offset);
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}
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/* Collect register REGNUM in the general-purpose register set
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REGSET. from register cache REGCACHE into the buffer specified by
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GREGS and LEN. If REGNUM is -1, do this for all registers in
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REGSET. */
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void
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ppc_collect_gregset (const struct regset *regset,
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const struct regcache *regcache,
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int regnum, void *gregs, size_t len)
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{
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struct gdbarch *gdbarch = get_regcache_arch (regcache);
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struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
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const struct ppc_reg_offsets *offsets = regset->descr;
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size_t offset;
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int i;
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offset = offsets->r0_offset;
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for (i = 0; i <= 32; i++, offset += 4)
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{
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if (regnum == -1 || regnum == i)
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ppc_collect_reg (regcache, regnum, gregs, offset);
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}
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if (regnum == -1 || regnum == PC_REGNUM)
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ppc_collect_reg (regcache, PC_REGNUM, gregs, offsets->pc_offset);
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if (regnum == -1 || regnum == tdep->ppc_ps_regnum)
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ppc_collect_reg (regcache, tdep->ppc_ps_regnum,
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gregs, offsets->ps_offset);
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if (regnum == -1 || regnum == tdep->ppc_cr_regnum)
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ppc_collect_reg (regcache, tdep->ppc_cr_regnum,
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gregs, offsets->cr_offset);
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if (regnum == -1 || regnum == tdep->ppc_lr_regnum)
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ppc_collect_reg (regcache, tdep->ppc_lr_regnum,
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gregs, offsets->lr_offset);
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if (regnum == -1 || regnum == tdep->ppc_ctr_regnum)
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ppc_collect_reg (regcache, tdep->ppc_ctr_regnum,
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gregs, offsets->ctr_offset);
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if (regnum == -1 || regnum == tdep->ppc_xer_regnum)
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ppc_collect_reg (regcache, tdep->ppc_xer_regnum,
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gregs, offsets->xer_offset);
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if (regnum == -1 || regnum == tdep->ppc_mq_regnum)
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ppc_collect_reg (regcache, tdep->ppc_mq_regnum,
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gregs, offsets->mq_offset);
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}
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/* Collect register REGNUM in the floating-point register set
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REGSET. from register cache REGCACHE into the buffer specified by
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FPREGS and LEN. If REGNUM is -1, do this for all registers in
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REGSET. */
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void
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ppc_collect_fpregset (const struct regset *regset,
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const struct regcache *regcache,
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int regnum, void *fpregs, size_t len)
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{
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struct gdbarch *gdbarch = get_regcache_arch (regcache);
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struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
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const struct ppc_reg_offsets *offsets = regset->descr;
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size_t offset;
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int i;
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offset = offsets->f0_offset;
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for (i = FP0_REGNUM; i <= FP0_REGNUM + 32; i++, offset += 4)
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{
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if (regnum == -1 || regnum == i)
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ppc_collect_reg (regcache, regnum, fpregs, offset);
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}
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if (regnum == -1 || regnum == tdep->ppc_fpscr_regnum)
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ppc_collect_reg (regcache, tdep->ppc_fpscr_regnum,
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fpregs, offsets->fpscr_offset);
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}
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/* Read a LEN-byte address from debugged memory address MEMADDR. */
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