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FRV Linux: Fill 'collect_regset' in regset structures.
This commit is contained in:
Andreas Arnez
Ulrich Weigand
parent
1d6e755515
commit
901e1b2377
@ -1,3 +1,19 @@
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2014-08-07 Andreas Arnez <arnez@linux.vnet.ibm.com>
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* frv-linux-tdep.c (FRV_PT_PSR, FRV_PT_ISR, FRV_PT_CCR)
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(FRV_PT_CCCR, FRV_PT_LR, FRV_PT_LCR, FRV_PT_PC, FRV_PT_GNER0)
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(FRV_PT_GNER1, FRV_PT_IACC0H, FRV_PT_IACC0L, FRV_PT_GR)
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(FRV_PT_TBR, FRV_PT_GR, FRV_PT_EXEC_FDPIC_LOADMAP)
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(FRV_PT_INTERP_FDPIC_LOADMAP): Delete macros.
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(frv_linux_gregmap, frv_linux_fpregmap): New register maps.
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(frv_linux_supply_gregset): Replace main logic by call to
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regcache_supply_regset, but keep clearing gr32-gr63.
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(frv_linux_supply_fpregset): Delete function.
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(frv_linux_gregset): Refer to appropriate register map and add
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regcache_collect_regset as the collect method.
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(frv_linux_fpregset): Likewise. Also exchange the supply method
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by regcache_supply_regset.
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2014-08-07 Andreas Arnez <arnez@linux.vnet.ibm.com>
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* alpha-linux-tdep.c (alpha_linux_supply_gregset): Replace logic
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@ -359,37 +359,52 @@ typedef struct
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frv_elf_fpreg_t fsr[1];
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} frv_elf_fpregset_t;
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/* Constants for accessing elements of frv_elf_gregset_t. */
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/* Register maps. */
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#define FRV_PT_PSR 0
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#define FRV_PT_ISR 1
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#define FRV_PT_CCR 2
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#define FRV_PT_CCCR 3
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#define FRV_PT_LR 4
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#define FRV_PT_LCR 5
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#define FRV_PT_PC 6
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#define FRV_PT_GNER0 10
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#define FRV_PT_GNER1 11
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#define FRV_PT_IACC0H 12
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#define FRV_PT_IACC0L 13
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static const struct regcache_map_entry frv_linux_gregmap[] =
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{
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{ 1, psr_regnum, 4 },
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{ 1, REGCACHE_MAP_SKIP, 4 }, /* isr */
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{ 1, ccr_regnum, 4 },
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{ 1, cccr_regnum, 4 },
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{ 1, lr_regnum, 4 },
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{ 1, lcr_regnum, 4 },
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{ 1, pc_regnum, 4 },
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{ 1, REGCACHE_MAP_SKIP, 4 }, /* __status */
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{ 1, REGCACHE_MAP_SKIP, 4 }, /* syscallno */
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{ 1, REGCACHE_MAP_SKIP, 4 }, /* orig_gr8 */
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{ 1, gner0_regnum, 4 },
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{ 1, gner1_regnum, 4 },
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{ 1, REGCACHE_MAP_SKIP, 8 }, /* iacc0 */
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{ 1, tbr_regnum, 4 },
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{ 31, first_gpr_regnum + 1, 4 }, /* gr1 ... gr31 */
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/* Note: Only 32 of the GRs will be found in the corefile. */
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#define FRV_PT_GR(j) ( 14 + (j)) /* GRj for 0<=j<=63. */
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/* Technically, the loadmap addresses are not part of `pr_reg' as
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found in the elf_prstatus struct. The fields which communicate
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the loadmap address appear (by design) immediately after
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`pr_reg' though, and the BFD function elf32_frv_grok_prstatus()
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has been implemented to include these fields in the register
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section that it extracts from the core file. So, for our
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purposes, they may be viewed as registers. */
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#define FRV_PT_TBR FRV_PT_GR(0) /* gr0 is always 0, so TBR is stuffed
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there. */
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/* Technically, the loadmap addresses are not part of `pr_reg' as
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found in the elf_prstatus struct. The fields which communicate the
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loadmap address appear (by design) immediately after `pr_reg'
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though, and the BFD function elf32_frv_grok_prstatus() has been
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implemented to include these fields in the register section that it
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extracts from the core file. So, for our purposes, they may be
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viewed as registers. */
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#define FRV_PT_EXEC_FDPIC_LOADMAP 46
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#define FRV_PT_INTERP_FDPIC_LOADMAP 47
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{ 1, fdpic_loadmap_exec_regnum, 4 },
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{ 1, fdpic_loadmap_interp_regnum, 4 },
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{ 0 }
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};
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static const struct regcache_map_entry frv_linux_fpregmap[] =
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{
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{ 64, first_fpr_regnum, 4 }, /* fr0 ... fr63 */
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{ 1, fner0_regnum, 4 },
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{ 1, fner1_regnum, 4 },
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{ 1, msr0_regnum, 4 },
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{ 1, msr1_regnum, 4 },
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{ 8, acc0_regnum, 4 }, /* acc0 ... acc7 */
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{ 1, accg0123_regnum, 4 },
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{ 1, accg4567_regnum, 4 },
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{ 1, fsr0_regnum, 4 },
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{ 0 }
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};
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/* Unpack an frv_elf_gregset_t into GDB's register cache. */
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@ -400,7 +415,6 @@ frv_linux_supply_gregset (const struct regset *regset,
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{
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int regi;
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char zerobuf[MAX_REGISTER_SIZE];
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const frv_elf_gregset_t *gregsetp = gregs;
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memset (zerobuf, 0, MAX_REGISTER_SIZE);
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@ -408,72 +422,25 @@ frv_linux_supply_gregset (const struct regset *regset,
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this slot. */
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regcache_raw_supply (regcache, first_gpr_regnum, zerobuf);
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for (regi = first_gpr_regnum + 1; regi <= last_gpr_regnum; regi++)
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{
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if (regi >= first_gpr_regnum + 32)
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regcache_raw_supply (regcache, regi, zerobuf);
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else
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regcache_raw_supply (regcache, regi,
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gregsetp->reg[FRV_PT_GR (regi
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- first_gpr_regnum)]);
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}
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/* Fill gr32, ..., gr63 with zeros. */
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for (regi = first_gpr_regnum + 32; regi <= last_gpr_regnum; regi++)
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regcache_raw_supply (regcache, regi, zerobuf);
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regcache_raw_supply (regcache, pc_regnum, gregsetp->reg[FRV_PT_PC]);
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regcache_raw_supply (regcache, psr_regnum, gregsetp->reg[FRV_PT_PSR]);
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regcache_raw_supply (regcache, ccr_regnum, gregsetp->reg[FRV_PT_CCR]);
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regcache_raw_supply (regcache, cccr_regnum, gregsetp->reg[FRV_PT_CCCR]);
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regcache_raw_supply (regcache, lr_regnum, gregsetp->reg[FRV_PT_LR]);
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regcache_raw_supply (regcache, lcr_regnum, gregsetp->reg[FRV_PT_LCR]);
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regcache_raw_supply (regcache, gner0_regnum, gregsetp->reg[FRV_PT_GNER0]);
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regcache_raw_supply (regcache, gner1_regnum, gregsetp->reg[FRV_PT_GNER1]);
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regcache_raw_supply (regcache, tbr_regnum, gregsetp->reg[FRV_PT_TBR]);
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regcache_raw_supply (regcache, fdpic_loadmap_exec_regnum,
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gregsetp->reg[FRV_PT_EXEC_FDPIC_LOADMAP]);
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regcache_raw_supply (regcache, fdpic_loadmap_interp_regnum,
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gregsetp->reg[FRV_PT_INTERP_FDPIC_LOADMAP]);
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}
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/* Unpack an frv_elf_fpregset_t into GDB's register cache. */
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static void
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frv_linux_supply_fpregset (const struct regset *regset,
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struct regcache *regcache,
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int regnum, const void *gregs, size_t len)
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{
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int regi;
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const frv_elf_fpregset_t *fpregsetp = gregs;
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for (regi = first_fpr_regnum; regi <= last_fpr_regnum; regi++)
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regcache_raw_supply (regcache, regi,
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fpregsetp->fr[regi - first_fpr_regnum]);
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regcache_raw_supply (regcache, fner0_regnum, fpregsetp->fner[0]);
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regcache_raw_supply (regcache, fner1_regnum, fpregsetp->fner[1]);
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regcache_raw_supply (regcache, msr0_regnum, fpregsetp->msr[0]);
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regcache_raw_supply (regcache, msr1_regnum, fpregsetp->msr[1]);
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for (regi = acc0_regnum; regi <= acc7_regnum; regi++)
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regcache_raw_supply (regcache, regi, fpregsetp->acc[regi - acc0_regnum]);
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regcache_raw_supply (regcache, accg0123_regnum, fpregsetp->accg);
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regcache_raw_supply (regcache, accg4567_regnum, fpregsetp->accg + 4);
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regcache_raw_supply (regcache, fsr0_regnum, fpregsetp->fsr[0]);
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regcache_supply_regset (regset, regcache, regnum, gregs, len);
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}
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/* FRV Linux kernel register sets. */
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static const struct regset frv_linux_gregset =
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{
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NULL,
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frv_linux_supply_gregset
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frv_linux_gregmap,
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frv_linux_supply_gregset, regcache_collect_regset
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};
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static const struct regset frv_linux_fpregset =
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{
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NULL,
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frv_linux_supply_fpregset
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frv_linux_fpregmap,
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regcache_supply_regset, regcache_collect_regset
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};
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static const struct regset *
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