diff options
| -rw-r--r-- | gdb/ChangeLog | 16 | ||||
| -rw-r--r-- | gdb/i386-linux-tdep.c | 16 | ||||
| -rw-r--r-- | gdb/i386-tdep.c | 58 | ||||
| -rw-r--r-- | gdb/i386-tdep.h | 4 |
4 files changed, 94 insertions, 0 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 8f8ad2c..1104a5a 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,19 @@ +2002-11-08 Andrew Cagney <ac131313@redhat.com> + + * i386-linux-tdep.c: Include "reggroups.h". + (i386_linux_register_reggroup_p): New function. + (i386_linux_init_abi): Set register_reggroup_p to + i386_linux_register_reggroup_p. + * i386-tdep.h (i386_register_reggroup_p): Declare. + * i386-tdep.c: Include "reggroups.h". + (i386_init_reggroups): New function. + (i386_add_reggroups): New function. + (i386_register_reggroup_p): New function. + (i386_sse_reggroup, i386_mmx_reggroup): New variables. + (_initialize_i386_tdep): Call i386_init_reggroups. + (i386_gdbarch_init): Set register_reggroup_p and add in the i386 + specific reggroups. + 2002-11-09 Mark Kettenis <kettenis@gnu.org> * infptrace.c (child_xfer_memory): Make use of the new PT_IO diff --git a/gdb/i386-linux-tdep.c b/gdb/i386-linux-tdep.c index 0d6ab40..f35c4ff 100644 --- a/gdb/i386-linux-tdep.c +++ b/gdb/i386-linux-tdep.c @@ -25,6 +25,7 @@ #include "value.h" #include "regcache.h" #include "inferior.h" +#include "reggroups.h" /* For i386_linux_skip_solib_resolver. */ #include "symtab.h" @@ -47,6 +48,20 @@ i386_linux_register_name (int reg) return i386_register_name (reg); } + +/* Return non-zero, when the register is in the corresponding register + group. Put the LINUX_ORIG_EAX register in the system group. */ +static int +i386_linux_register_reggroup_p (struct gdbarch *gdbarch, int regnum, + struct reggroup *group) +{ + if (regnum == I386_LINUX_ORIG_EAX_REGNUM) + return (group == system_reggroup + || group == save_reggroup + || group == restore_reggroup); + return i386_register_reggroup_p (gdbarch, regnum, group); +} + /* Recognizing signal handler frames. */ @@ -442,6 +457,7 @@ i386_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) set_gdbarch_write_pc (gdbarch, i386_linux_write_pc); set_gdbarch_num_regs (gdbarch, I386_SSE_NUM_REGS + 1); set_gdbarch_register_name (gdbarch, i386_linux_register_name); + set_gdbarch_register_reggroup_p (gdbarch, i386_linux_register_reggroup_p); set_gdbarch_register_bytes (gdbarch, I386_SSE_SIZEOF_REGS + 4); tdep->jb_pc_offset = 20; /* From <bits/setjmp.h>. */ diff --git a/gdb/i386-tdep.c b/gdb/i386-tdep.c index 3c12c70..d658e3a 100644 --- a/gdb/i386-tdep.c +++ b/gdb/i386-tdep.c @@ -37,6 +37,7 @@ #include "doublest.h" #include "value.h" #include "gdb_assert.h" +#include "reggroups.h" #include "i386-tdep.h" #include "i387-tdep.h" @@ -1443,6 +1444,56 @@ i386_nw_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) } +/* i386 register groups. In addition to the normal groups, add "mmx" + and "sse". */ + +static struct reggroup *i386_sse_reggroup; +static struct reggroup *i386_mmx_reggroup; + +static void +i386_init_reggroups (void) +{ + i386_sse_reggroup = reggroup_new ("sse", USER_REGGROUP); + i386_mmx_reggroup = reggroup_new ("mmx", USER_REGGROUP); +} + +static void +i386_add_reggroups (struct gdbarch *gdbarch) +{ + reggroup_add (gdbarch, i386_sse_reggroup); + reggroup_add (gdbarch, i386_mmx_reggroup); + reggroup_add (gdbarch, general_reggroup); + reggroup_add (gdbarch, float_reggroup); + reggroup_add (gdbarch, all_reggroup); + reggroup_add (gdbarch, save_reggroup); + reggroup_add (gdbarch, restore_reggroup); + reggroup_add (gdbarch, vector_reggroup); + reggroup_add (gdbarch, system_reggroup); +} + +int +i386_register_reggroup_p (struct gdbarch *gdbarch, int regnum, + struct reggroup *group) +{ + int sse_regnum_p = (i386_sse_regnum_p (regnum) + || i386_mxcsr_regnum_p (regnum)); + int fp_regnum_p = (i386_fp_regnum_p (regnum) + || i386_fpc_regnum_p (regnum)); + int mmx_regnum_p = (i386_mmx_regnum_p (regnum)); + if (group == i386_mmx_reggroup) + return mmx_regnum_p; + if (group == i386_sse_reggroup) + return sse_regnum_p; + if (group == vector_reggroup) + return (mmx_regnum_p || sse_regnum_p); + if (group == float_reggroup) + return fp_regnum_p; + if (group == general_reggroup) + return (!fp_regnum_p && !mmx_regnum_p && !sse_regnum_p); + return default_register_reggroup_p (gdbarch, regnum, group); +} + + static struct gdbarch * i386_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) { @@ -1601,6 +1652,10 @@ i386_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) set_gdbarch_print_insn (gdbarch, i386_print_insn); + /* Add the i386 register groups. */ + i386_add_reggroups (gdbarch); + set_gdbarch_register_reggroup_p (gdbarch, i386_register_reggroup_p); + /* Hook in ABI-specific overrides, if they have been registered. */ gdbarch_init_osabi (info, gdbarch, osabi); @@ -1671,4 +1726,7 @@ are \"default\", \"pcc\" and \"reg\", and the default value is \"default\".", i386_go32_init_abi); gdbarch_register_osabi (bfd_arch_i386, GDB_OSABI_NETWARE, i386_nw_init_abi); + + /* Initialize the i386 specific register groups. */ + i386_init_reggroups (); } diff --git a/gdb/i386-tdep.h b/gdb/i386-tdep.h index 5980617..627cb0a 100644 --- a/gdb/i386-tdep.h +++ b/gdb/i386-tdep.h @@ -167,6 +167,10 @@ extern int i386_frameless_signal_p (struct frame_info *frame); /* Return the name of register REG. */ extern char const *i386_register_name (int reg); +/* Return non-zero if REGNUM is a member of the specified group. */ +extern int i386_register_reggroup_p (struct gdbarch *gdbarch, int regnum, + struct reggroup *group); + /* Initialize a basic ELF architecture variant. */ extern void i386_elf_init_abi (struct gdbarch_info, struct gdbarch *); |