From: Elena Zannoni Date: Wed, 23 Jan 2002 04:00:55 +0000 (+0000) Subject: 2002-01-22 Elena Zannoni X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=7bd872fe055d9a878f3e8a40abf1ff619419da8f;p=binutils-gdb.git 2002-01-22 Elena Zannoni * sh-tdep.c (sh_pseudo_register_read): New function. Renamed and modified version of obsolete sh_fetch_pseudo_register. (sh_fetch_pseudo_register): Rename to sh_pseudo_register_read. (sh4_register_read): New function. (sh_pseudo_register_write): New function. Renamed and modified version of obsolete sh_store_pseudo_register. (sh_store_pseudo_register): Rename to sh_pseudo_register_write. (sh4_register_write): New function. (sh_gdbarch_init): Remove setting of gdbarch function fetch_pseudo_register and store_pseudo_register. Remove setting of register_convert_to_raw, register_convert_to_virtual, register_convertible. (sh_sh4_register_convertible): Delete. No longer needed. All is taken care by architecture specific functions register_read/register_write. (sh_sh4_register_convert_to_virtual): Make static. (sh_sh4_register_convert_to_raw): Ditto. --- diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 5243c91dedc..d43b5fa3d0f 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,23 @@ +2002-01-22 Elena Zannoni + + * sh-tdep.c (sh_pseudo_register_read): New function. Renamed and + modified version of obsolete sh_fetch_pseudo_register. + (sh_fetch_pseudo_register): Rename to sh_pseudo_register_read. + (sh4_register_read): New function. + (sh_pseudo_register_write): New function. Renamed and modified + version of obsolete sh_store_pseudo_register. + (sh_store_pseudo_register): Rename to sh_pseudo_register_write. + (sh4_register_write): New function. + (sh_gdbarch_init): Remove setting of gdbarch function + fetch_pseudo_register and store_pseudo_register. Remove setting of + register_convert_to_raw, register_convert_to_virtual, + register_convertible. + (sh_sh4_register_convertible): Delete. No longer needed. All is + taken care by architecture specific functions + register_read/register_write. + (sh_sh4_register_convert_to_virtual): Make static. + (sh_sh4_register_convert_to_raw): Ditto. + 2002-01-22 Andrew Cagney * doublest.c (floatformat_is_negative): Assert FMT is non NULL. diff --git a/gdb/sh-tdep.c b/gdb/sh-tdep.c index cb646caea8f..bc35d2df145 100644 --- a/gdb/sh-tdep.c +++ b/gdb/sh-tdep.c @@ -1555,19 +1555,7 @@ sh_default_register_virtual_type (int reg_nr) The other pseudo registers (the FVs) also don't pose a problem because they are stored as 4 individual FP elements. */ -int -sh_sh4_register_convertible (int nr) -{ - struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch); - - if (TARGET_BYTE_ORDER == BFD_ENDIAN_LITTLE) - return (tdep->DR0_REGNUM <= nr - && nr <= tdep->DR_LAST_REGNUM); - else - return 0; -} - -void +static void sh_sh4_register_convert_to_virtual (int regnum, struct type *type, char *from, char *to) { @@ -1584,9 +1572,9 @@ sh_sh4_register_convert_to_virtual (int regnum, struct type *type, error ("sh_register_convert_to_virtual called with non DR register number"); } -void +static void sh_sh4_register_convert_to_raw (struct type *type, int regnum, - char *from, char *to) + char *from, char *to) { struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch); @@ -1601,41 +1589,56 @@ sh_sh4_register_convert_to_raw (struct type *type, int regnum, } void -sh_fetch_pseudo_register (int reg_nr) +sh_pseudo_register_read (int reg_nr, char *buffer) { int base_regnum, portion; + char *temp_buffer = (char*) alloca (MAX_REGISTER_RAW_SIZE); struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch); - if (!register_cached (reg_nr)) + if (reg_nr >= tdep->DR0_REGNUM + && reg_nr <= tdep->DR_LAST_REGNUM) + { + base_regnum = dr_reg_base_num (reg_nr); + + /* Build the value in the provided buffer. */ + /* Read the real regs for which this one is an alias. */ + for (portion = 0; portion < 2; portion++) + regcache_read (base_regnum + portion, + temp_buffer + + REGISTER_RAW_SIZE (base_regnum) * portion); + /* We must pay attention to the endiannes. */ + sh_sh4_register_convert_to_virtual (reg_nr, + REGISTER_VIRTUAL_TYPE (reg_nr), + temp_buffer, buffer); + } + else if (reg_nr >= tdep->FV0_REGNUM + && reg_nr <= tdep->FV_LAST_REGNUM) { - if (reg_nr >= tdep->DR0_REGNUM - && reg_nr <= tdep->DR_LAST_REGNUM) - { - base_regnum = dr_reg_base_num (reg_nr); - - /* Read the real regs for which this one is an alias. */ - for (portion = 0; portion < 2; portion++) - if (!register_cached (base_regnum + portion)) - target_fetch_registers (base_regnum + portion); - } - else if (reg_nr >= tdep->FV0_REGNUM - && reg_nr <= tdep->FV_LAST_REGNUM) - { - base_regnum = fv_reg_base_num (reg_nr); - - /* Read the real regs for which this one is an alias. */ - for (portion = 0; portion < 4; portion++) - if (!register_cached (base_regnum + portion)) - target_fetch_registers (base_regnum + portion); - } - register_valid [reg_nr] = 1; + base_regnum = fv_reg_base_num (reg_nr); + + /* Read the real regs for which this one is an alias. */ + for (portion = 0; portion < 4; portion++) + regcache_read (base_regnum + portion, + buffer + REGISTER_RAW_SIZE (base_regnum) * portion); } } +static void +sh4_register_read (struct gdbarch *gdbarch, int reg_nr, char *buffer) +{ + if (reg_nr >= 0 && reg_nr < gdbarch_tdep (current_gdbarch)->DR0_REGNUM) + /* It is a regular register. */ + regcache_read (reg_nr, buffer); + else + /* It is a pseudo register and we need to construct its value */ + sh_pseudo_register_read (reg_nr, buffer); +} + void -sh_store_pseudo_register (int reg_nr) +sh_pseudo_register_write (int reg_nr, char *buffer) { int base_regnum, portion; + char *temp_buffer = (char*) alloca (MAX_REGISTER_RAW_SIZE); struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch); if (reg_nr >= tdep->DR0_REGNUM @@ -1643,12 +1646,14 @@ sh_store_pseudo_register (int reg_nr) { base_regnum = dr_reg_base_num (reg_nr); + /* We must pay attention to the endiannes. */ + sh_sh4_register_convert_to_raw (REGISTER_VIRTUAL_TYPE (reg_nr), reg_nr, + buffer, temp_buffer); + /* Write the real regs for which this one is an alias. */ for (portion = 0; portion < 2; portion++) - { - register_valid[base_regnum + portion] = 1; - target_store_registers (base_regnum + portion); - } + regcache_write (base_regnum + portion, + temp_buffer + REGISTER_RAW_SIZE (base_regnum) * portion); } else if (reg_nr >= tdep->FV0_REGNUM && reg_nr <= tdep->FV_LAST_REGNUM) @@ -1657,13 +1662,22 @@ sh_store_pseudo_register (int reg_nr) /* Write the real regs for which this one is an alias. */ for (portion = 0; portion < 4; portion++) - { - register_valid[base_regnum + portion] = 1; - target_store_registers (base_regnum + portion); - } + regcache_write (base_regnum + portion, + buffer + REGISTER_RAW_SIZE (base_regnum) * portion); } } +static void +sh4_register_write (struct gdbarch *gdbarch, int reg_nr, char *buffer) +{ + if (reg_nr >= 0 && reg_nr < gdbarch_tdep (current_gdbarch)->DR0_REGNUM) + /* It is a regular register. */ + regcache_write (reg_nr, buffer); + else + /* It is a pseudo register and we need to construct its value */ + sh_pseudo_register_write (reg_nr, buffer); +} + /* Floating point vector of 4 float registers. */ static void do_fv_register_info (int fv_regnum) @@ -1947,8 +1961,6 @@ sh_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) set_gdbarch_pc_regnum (gdbarch, 16); set_gdbarch_register_size (gdbarch, 4); set_gdbarch_register_bytes (gdbarch, SH_DEFAULT_NUM_REGS * 4); - set_gdbarch_fetch_pseudo_register (gdbarch, sh_fetch_pseudo_register); - set_gdbarch_store_pseudo_register (gdbarch, sh_store_pseudo_register); set_gdbarch_do_registers_info (gdbarch, sh_do_registers_info); set_gdbarch_breakpoint_from_pc (gdbarch, sh_breakpoint_from_pc); set_gdbarch_frame_chain (gdbarch, sh_frame_chain); @@ -2079,9 +2091,8 @@ sh_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) set_gdbarch_num_pseudo_regs (gdbarch, 12); set_gdbarch_max_register_raw_size (gdbarch, 4 * 4); set_gdbarch_max_register_virtual_size (gdbarch, 4 * 4); - set_gdbarch_register_convert_to_raw (gdbarch, sh_sh4_register_convert_to_raw); - set_gdbarch_register_convert_to_virtual (gdbarch, sh_sh4_register_convert_to_virtual); - set_gdbarch_register_convertible (gdbarch, sh_sh4_register_convertible); + set_gdbarch_register_read (gdbarch, sh4_register_read); + set_gdbarch_register_write (gdbarch, sh4_register_write); tdep->FPUL_REGNUM = 23; tdep->FPSCR_REGNUM = 24; tdep->FP_LAST_REGNUM = 40;