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gdb/csky modify registers list for general_reggroup

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There are two modification points here:
1. For the debugging of csky architecture, after executing "info register",
   we hope to print out GPRs, PC and the registers related to exceptions.
2. With tdesc-xml, users can view the register groups described in XML.
This commit is contained in:
Jiangshuai Li
2022-07-22 10:33:14 +08:00
parent b5375c5da9
commit 4686f81068
1 changed files with 17 additions and 5 deletions
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22
gdb/csky-tdep.c
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@ -2518,7 +2518,11 @@ csky_register_reggroup_p (struct gdbarch *gdbarch, int regnum,
if (reggroup == save_reggroup || reggroup == restore_reggroup) if (reggroup == save_reggroup || reggroup == restore_reggroup)
return raw_p; return raw_p;
if (((regnum >= CSKY_R0_REGNUM) && (regnum <= CSKY_R0_REGNUM + 31)) if ((((regnum >= CSKY_R0_REGNUM) && (regnum <= CSKY_R0_REGNUM + 31))
|| (regnum == CSKY_PC_REGNUM)
|| (regnum == CSKY_EPC_REGNUM)
|| (regnum == CSKY_CR0_REGNUM)
|| (regnum == CSKY_EPSR_REGNUM))
&& (reggroup == general_reggroup)) && (reggroup == general_reggroup))
return 1; return 1;
@ -2548,6 +2552,12 @@ csky_register_reggroup_p (struct gdbarch *gdbarch, int regnum,
&& (reggroup == fr_reggroup)) && (reggroup == fr_reggroup))
return 6; return 6;
if (tdesc_has_registers (gdbarch_target_desc (gdbarch)))
{
if (tdesc_register_in_reggroup_p (gdbarch, regnum, reggroup) > 0)
return 7;
}
return 0; return 0;
} }
@ -2557,16 +2567,16 @@ static int
csky_dwarf_reg_to_regnum (struct gdbarch *gdbarch, int dw_reg) csky_dwarf_reg_to_regnum (struct gdbarch *gdbarch, int dw_reg)
{ {
/* For GPRs. */ /* For GPRs. */
if (dw_reg >= CSKY_R0_REGNUM && dw_reg <= (CSKY_R0_REGNUM + 31)) if (dw_reg >= CSKY_R0_REGNUM && dw_reg <= CSKY_R0_REGNUM + 31)
return dw_reg; return dw_reg;
/* For Hi, Lo, PC. */ /* For Hi, Lo, PC. */
if ((dw_reg == CSKY_HI_REGNUM) || (dw_reg == CSKY_LO_REGNUM) if (dw_reg == CSKY_HI_REGNUM || dw_reg == CSKY_LO_REGNUM
|| (dw_reg == CSKY_PC_REGNUM)) || dw_reg == CSKY_PC_REGNUM)
return dw_reg; return dw_reg;
/* For Float and Vector pseudo registers. */ /* For Float and Vector pseudo registers. */
if ((dw_reg >= FV_PSEUDO_REGNO_FIRST) && (dw_reg <= FV_PSEUDO_REGNO_LAST)) if (dw_reg >= FV_PSEUDO_REGNO_FIRST && dw_reg <= FV_PSEUDO_REGNO_LAST)
{ {
char name_buf[4]; char name_buf[4];
@ -3020,6 +3030,8 @@ csky_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
set_gdbarch_num_regs (gdbarch, (num_regs + 1)); set_gdbarch_num_regs (gdbarch, (num_regs + 1));
tdesc_use_registers (gdbarch, info.target_desc, std::move (tdesc_data)); tdesc_use_registers (gdbarch, info.target_desc, std::move (tdesc_data));
set_gdbarch_register_type (gdbarch, csky_register_type); set_gdbarch_register_type (gdbarch, csky_register_type);
set_gdbarch_register_reggroup_p (gdbarch,
csky_register_reggroup_p);
} }
if (tdep->fv_pseudo_registers_count) if (tdep->fv_pseudo_registers_count)