diff options
Diffstat (limited to 'gdb/shnbsd-tdep.c')
| -rw-r--r-- | gdb/shnbsd-tdep.c | 166 |
1 files changed, 27 insertions, 139 deletions
diff --git a/gdb/shnbsd-tdep.c b/gdb/shnbsd-tdep.c index a0cddc5..18a2a73 100644 --- a/gdb/shnbsd-tdep.c +++ b/gdb/shnbsd-tdep.c @@ -22,163 +22,51 @@ #include "defs.h" #include "gdbcore.h" -#include "regcache.h" #include "regset.h" #include "value.h" #include "osabi.h" -#include "gdb_assert.h" #include "gdb_string.h" #include "sh-tdep.h" -#include "shnbsd-tdep.h" #include "solib-svr4.h" -/* Convert an r0-r15 register number into an offset into a ptrace +/* Convert a register number into an offset into a ptrace register structure. */ -static const int regmap[] = +static const struct sh_corefile_regmap regmap[] = { - (20 * 4), /* r0 */ - (19 * 4), /* r1 */ - (18 * 4), /* r2 */ - (17 * 4), /* r3 */ - (16 * 4), /* r4 */ - (15 * 4), /* r5 */ - (14 * 4), /* r6 */ - (13 * 4), /* r7 */ - (12 * 4), /* r8 */ - (11 * 4), /* r9 */ - (10 * 4), /* r10 */ - ( 9 * 4), /* r11 */ - ( 8 * 4), /* r12 */ - ( 7 * 4), /* r13 */ - ( 6 * 4), /* r14 */ - ( 5 * 4), /* r15 */ + {R0_REGNUM, 20 * 4}, + {R0_REGNUM + 1, 19 * 4}, + {R0_REGNUM + 2, 18 * 4}, + {R0_REGNUM + 3, 17 * 4}, + {R0_REGNUM + 4, 16 * 4}, + {R0_REGNUM + 5, 15 * 4}, + {R0_REGNUM + 6, 14 * 4}, + {R0_REGNUM + 7, 13 * 4}, + {R0_REGNUM + 8, 12 * 4}, + {R0_REGNUM + 9, 11 * 4}, + {R0_REGNUM + 10, 10 * 4}, + {R0_REGNUM + 11, 9 * 4}, + {R0_REGNUM + 12, 8 * 4}, + {R0_REGNUM + 13, 7 * 4}, + {R0_REGNUM + 14, 6 * 4}, + {R0_REGNUM + 15, 5 * 4}, + {PC_REGNUM, 0 * 4}, + {SR_REGNUM, 1 * 4}, + {PR_REGNUM, 2 * 4}, + {MACH_REGNUM, 3 * 4}, + {MACL_REGNUM, 4 * 4}, + {-1 /* Terminator. */, 0} }; - -/* Sizeof `struct reg' in <machine/reg.h>. */ -#define SHNBSD_SIZEOF_GREGS (21 * 4) - -/* Supply register REGNUM from the buffer specified by GREGS and LEN - in the general-purpose register set REGSET to register cache - REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */ - -static void -shnbsd_supply_gregset (const struct regset *regset, - struct regcache *regcache, - int regnum, const void *gregs, size_t len) -{ - struct gdbarch *gdbarch = get_regcache_arch (regcache); - const gdb_byte *regs = gregs; - int i; - - gdb_assert (len >= SHNBSD_SIZEOF_GREGS); - - if (regnum == gdbarch_pc_regnum (gdbarch) || regnum == -1) - regcache_raw_supply (regcache, gdbarch_pc_regnum (gdbarch), - regs + (0 * 4)); - - if (regnum == SR_REGNUM || regnum == -1) - regcache_raw_supply (regcache, SR_REGNUM, regs + (1 * 4)); - - if (regnum == PR_REGNUM || regnum == -1) - regcache_raw_supply (regcache, PR_REGNUM, regs + (2 * 4)); - - if (regnum == MACH_REGNUM || regnum == -1) - regcache_raw_supply (regcache, MACH_REGNUM, regs + (3 * 4)); - - if (regnum == MACL_REGNUM || regnum == -1) - regcache_raw_supply (regcache, MACL_REGNUM, regs + (4 * 4)); - - for (i = R0_REGNUM; i <= (R0_REGNUM + 15); i++) - { - if (regnum == i || regnum == -1) - regcache_raw_supply (regcache, i, regs + regmap[i - R0_REGNUM]); - } -} - -/* Collect register REGNUM in the general-purpose register set - REGSET. from register cache REGCACHE into the buffer specified by - GREGS and LEN. If REGNUM is -1, do this for all registers in - REGSET. */ - -static void -shnbsd_collect_gregset (const struct regset *regset, - const struct regcache *regcache, - int regnum, void *gregs, size_t len) -{ - struct gdbarch *gdbarch = get_regcache_arch (regcache); - gdb_byte *regs = gregs; - int i; - - gdb_assert (len >= SHNBSD_SIZEOF_GREGS); - - if (regnum == gdbarch_pc_regnum (gdbarch) || regnum == -1) - regcache_raw_collect (regcache, gdbarch_pc_regnum (gdbarch), - regs + (0 * 4)); - - if (regnum == SR_REGNUM || regnum == -1) - regcache_raw_collect (regcache, SR_REGNUM, regs + (1 * 4)); - - if (regnum == PR_REGNUM || regnum == -1) - regcache_raw_collect (regcache, PR_REGNUM, regs + (2 * 4)); - - if (regnum == MACH_REGNUM || regnum == -1) - regcache_raw_collect (regcache, MACH_REGNUM, regs + (3 * 4)); - - if (regnum == MACL_REGNUM || regnum == -1) - regcache_raw_collect (regcache, MACL_REGNUM, regs + (4 * 4)); - - for (i = R0_REGNUM; i <= (R0_REGNUM + 15); i++) - { - if (regnum == i || regnum == -1) - regcache_raw_collect (regcache, i, regs + regmap[i - R0_REGNUM]); - } -} - -/* SH register sets. */ - -static struct regset shnbsd_gregset = -{ - NULL, - shnbsd_supply_gregset, - shnbsd_collect_gregset -}; - -/* Return the appropriate register set for the core section identified - by SECT_NAME and SECT_SIZE. */ - -static const struct regset * -shnbsd_regset_from_core_section (struct gdbarch *gdbarch, - const char *sect_name, size_t sect_size) -{ - if (strcmp (sect_name, ".reg") == 0 && sect_size >= SHNBSD_SIZEOF_GREGS) - return &shnbsd_gregset; - - return NULL; -} - -void -shnbsd_supply_reg (struct regcache *regcache, const char *regs, int regnum) -{ - shnbsd_supply_gregset (&shnbsd_gregset, regcache, regnum, - regs, SHNBSD_SIZEOF_GREGS); -} - -void -shnbsd_fill_reg (const struct regcache *regcache, char *regs, int regnum) -{ - shnbsd_collect_gregset (&shnbsd_gregset, regcache, regnum, - regs, SHNBSD_SIZEOF_GREGS); -} static void shnbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) { - set_gdbarch_regset_from_core_section - (gdbarch, shnbsd_regset_from_core_section); + struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); + + tdep->core_gregmap = (struct sh_corefile_regmap *)regmap; set_solib_svr4_fetch_link_map_offsets (gdbarch, svr4_ilp32_fetch_link_map_offsets); |