From 50e8a0d53b037c640e313d57ddbe88db8eeea5bb Mon Sep 17 00:00:00 2001 From: Hui Zhu Date: Thu, 5 Aug 2010 03:03:36 +0000 Subject: [PATCH] 2010-08-05 Hui Zhu * mips-linux-tdep.c(regset.h): New include. (mips_supply_gregset_wrapper, mips_fill_gregset_wrapper, mips_supply_fpregset_wrapper, mips_fill_fpregset_wrapper, mips64_supply_gregset_wrapper, mips64_fill_gregset_wrapper, mips64_supply_fpregset_wrapper, mips64_fill_fpregset_wrapper, mips_linux_regset_from_core_section): New functions. (fetch_core_registers, regset_core_fns): Deleted. (mips_linux_init_abi): Add mips_linux_regset_from_core_section. Deleted regset_core_fns. * mips-tdep.c(mips_gdbarch_init): Initialize tdep->gregset, tdep->gregset64, tdep->fpregset and tdep->fpregset64. * mips-tdep.h(gdbarch_tdep): Add gregset, gregset64, fpregset and fpregset64. --- gdb/ChangeLog | 16 ++++++ gdb/mips-linux-tdep.c | 153 +++++++++++++++++++++++++++++++++++++------------- gdb/mips-tdep.c | 4 ++ gdb/mips-tdep.h | 8 +++ 4 files changed, 142 insertions(+), 39 deletions(-) diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 372ed58..0c42509 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,19 @@ +2010-08-05 Hui Zhu + + * mips-linux-tdep.c(regset.h): New include. + (mips_supply_gregset_wrapper, mips_fill_gregset_wrapper, + mips_supply_fpregset_wrapper, mips_fill_fpregset_wrapper, + mips64_supply_gregset_wrapper, mips64_fill_gregset_wrapper, + mips64_supply_fpregset_wrapper, mips64_fill_fpregset_wrapper, + mips_linux_regset_from_core_section): New functions. + (fetch_core_registers, regset_core_fns): Deleted. + (mips_linux_init_abi): Add mips_linux_regset_from_core_section. + Deleted regset_core_fns. + * mips-tdep.c(mips_gdbarch_init): Initialize tdep->gregset, + tdep->gregset64, tdep->fpregset and tdep->fpregset64. + * mips-tdep.h(gdbarch_tdep): Add gregset, gregset64, fpregset + and fpregset64. + 2010-08-04 Pedro Alves * s390-tdep.c: Include linux-tdep.h. diff --git a/gdb/mips-linux-tdep.c b/gdb/mips-linux-tdep.c index 6d0e7f6..8fe9a71 100644 --- a/gdb/mips-linux-tdep.c +++ b/gdb/mips-linux-tdep.c @@ -36,6 +36,7 @@ #include "solist.h" #include "symtab.h" #include "target-descriptions.h" +#include "regset.h" #include "mips-linux-tdep.h" #include "glibc-tdep.h" #include "linux-tdep.h" @@ -127,6 +128,16 @@ mips_supply_gregset (struct regcache *regcache, regcache_raw_supply (regcache, regi, zerobuf); } +static void +mips_supply_gregset_wrapper (const struct regset *regset, + struct regcache *regcache, + int regnum, const void *gregs, size_t len) +{ + gdb_assert (len == sizeof (mips_elf_gregset_t)); + + mips_supply_gregset (regcache, (const mips_elf_gregset_t *)gregs); +} + /* Pack our registers (or one register) into an elf_gregset_t. */ void @@ -185,6 +196,16 @@ mips_fill_gregset (const struct regcache *regcache, } } +static void +mips_fill_gregset_wrapper (const struct regset *regset, + const struct regcache *regcache, + int regnum, void *gregs, size_t len) +{ + gdb_assert (len == sizeof (mips_elf_gregset_t)); + + mips_fill_gregset (regcache, (mips_elf_gregset_t *)gregs, regnum); +} + /* Likewise, unpack an elf_fpregset_t. */ void @@ -212,6 +233,16 @@ mips_supply_fpregset (struct regcache *regcache, zerobuf); } +static void +mips_supply_fpregset_wrapper (const struct regset *regset, + struct regcache *regcache, + int regnum, const void *gregs, size_t len) +{ + gdb_assert (len == sizeof (mips_elf_fpregset_t)); + + mips_supply_fpregset (regcache, (const mips_elf_fpregset_t *)gregs); +} + /* Likewise, pack one or all floating point registers into an elf_fpregset_t. */ @@ -245,6 +276,16 @@ mips_fill_fpregset (const struct regcache *regcache, } } +static void +mips_fill_fpregset_wrapper (const struct regset *regset, + const struct regcache *regcache, + int regnum, void *gregs, size_t len) +{ + gdb_assert (len == sizeof (mips_elf_fpregset_t)); + + mips_fill_fpregset (regcache, (mips_elf_fpregset_t *)gregs, regnum); +} + /* Support for 64-bit ABIs. */ /* Figure out where the longjmp will land. @@ -342,6 +383,16 @@ mips64_supply_gregset (struct regcache *regcache, regcache_raw_supply (regcache, regi, zerobuf); } +static void +mips64_supply_gregset_wrapper (const struct regset *regset, + struct regcache *regcache, + int regnum, const void *gregs, size_t len) +{ + gdb_assert (len == sizeof (mips64_elf_gregset_t)); + + mips64_supply_gregset (regcache, (const mips64_elf_gregset_t *)gregs); +} + /* Pack our registers (or one register) into a 64-bit elf_gregset_t. */ void @@ -402,6 +453,16 @@ mips64_fill_gregset (const struct regcache *regcache, } } +static void +mips64_fill_gregset_wrapper (const struct regset *regset, + const struct regcache *regcache, + int regnum, void *gregs, size_t len) +{ + gdb_assert (len == sizeof (mips64_elf_gregset_t)); + + mips64_fill_gregset (regcache, (mips64_elf_gregset_t *)gregs, regnum); +} + /* Likewise, unpack an elf_fpregset_t. */ void @@ -440,6 +501,16 @@ mips64_supply_fpregset (struct regcache *regcache, (const gdb_byte *)(*fpregsetp + 32) + 4); } +static void +mips64_supply_fpregset_wrapper (const struct regset *regset, + struct regcache *regcache, + int regnum, const void *gregs, size_t len) +{ + gdb_assert (len == sizeof (mips64_elf_fpregset_t)); + + mips64_supply_fpregset (regcache, (const mips64_elf_fpregset_t *)gregs); +} + /* Likewise, pack one or all floating point registers into an elf_fpregset_t. */ @@ -508,72 +579,75 @@ mips64_fill_fpregset (const struct regcache *regcache, } } +static void +mips64_fill_fpregset_wrapper (const struct regset *regset, + const struct regcache *regcache, + int regnum, void *gregs, size_t len) +{ + gdb_assert (len == sizeof (mips64_elf_fpregset_t)); -/* Use a local version of this function to get the correct types for - regsets, until multi-arch core support is ready. */ + mips64_fill_fpregset (regcache, (mips64_elf_fpregset_t *)gregs, regnum); +} -static void -fetch_core_registers (struct regcache *regcache, - char *core_reg_sect, unsigned core_reg_size, - int which, CORE_ADDR reg_addr) +const struct regset * +mips_linux_regset_from_core_section (struct gdbarch *gdbarch, + const char *sect_name, size_t sect_size) { + struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); mips_elf_gregset_t gregset; mips_elf_fpregset_t fpregset; mips64_elf_gregset_t gregset64; mips64_elf_fpregset_t fpregset64; - if (which == 0) + if (strcmp (sect_name, ".reg") == 0) { - if (core_reg_size == sizeof (gregset)) + if (sect_size == sizeof (gregset)) { - memcpy ((char *) &gregset, core_reg_sect, sizeof (gregset)); - mips_supply_gregset (regcache, - (const mips_elf_gregset_t *) &gregset); + if (tdep->gregset == NULL) + tdep->gregset = regset_alloc (gdbarch, + mips_supply_gregset_wrapper, + mips_fill_gregset_wrapper); + return tdep->gregset; } - else if (core_reg_size == sizeof (gregset64)) + else if (sect_size == sizeof (gregset64)) { - memcpy ((char *) &gregset64, core_reg_sect, sizeof (gregset64)); - mips64_supply_gregset (regcache, - (const mips64_elf_gregset_t *) &gregset64); + if (tdep->gregset64 == NULL) + tdep->gregset64 = regset_alloc (gdbarch, + mips64_supply_gregset_wrapper, + mips64_fill_gregset_wrapper); + return tdep->gregset64; } else { warning (_("wrong size gregset struct in core file")); } } - else if (which == 2) + else if (strcmp (sect_name, ".reg2") == 0) { - if (core_reg_size == sizeof (fpregset)) + if (sect_size == sizeof (fpregset)) { - memcpy ((char *) &fpregset, core_reg_sect, sizeof (fpregset)); - mips_supply_fpregset (regcache, - (const mips_elf_fpregset_t *) &fpregset); + if (tdep->fpregset == NULL) + tdep->fpregset = regset_alloc (gdbarch, + mips_supply_fpregset_wrapper, + mips_fill_fpregset_wrapper); + return tdep->fpregset; } - else if (core_reg_size == sizeof (fpregset64)) + else if (sect_size == sizeof (fpregset64)) { - memcpy ((char *) &fpregset64, core_reg_sect, - sizeof (fpregset64)); - mips64_supply_fpregset (regcache, - (const mips64_elf_fpregset_t *) &fpregset64); + if (tdep->fpregset64 == NULL) + tdep->fpregset64 = regset_alloc (gdbarch, + mips64_supply_fpregset_wrapper, + mips64_fill_fpregset_wrapper); + return tdep->fpregset64; } else { warning (_("wrong size fpregset struct in core file")); } } -} - -/* Register that we are able to handle ELF file formats using standard - procfs "regset" structures. */ -static struct core_fns regset_core_fns = -{ - bfd_target_elf_flavour, /* core_flavour */ - default_check_format, /* check_format */ - default_core_sniffer, /* core_sniffer */ - fetch_core_registers, /* core_read_registers */ - NULL /* next */ -}; + return NULL; +} static const struct target_desc * mips_linux_core_read_description (struct gdbarch *gdbarch, @@ -1206,6 +1280,9 @@ mips_linux_init_abi (struct gdbarch_info info, set_gdbarch_core_read_description (gdbarch, mips_linux_core_read_description); + set_gdbarch_regset_from_core_section (gdbarch, + mips_linux_regset_from_core_section); + tdep->syscall_next_pc = mips_linux_syscall_next_pc; if (tdesc_data) @@ -1243,6 +1320,4 @@ _initialize_mips_linux_tdep (void) GDB_OSABI_LINUX, mips_linux_init_abi); } - - deprecated_add_core_fns (®set_core_fns); } diff --git a/gdb/mips-tdep.c b/gdb/mips-tdep.c index 7e15041..fccd279 100644 --- a/gdb/mips-tdep.c +++ b/gdb/mips-tdep.c @@ -5749,6 +5749,10 @@ mips_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) tdep->mips_fpu_type = fpu_type; tdep->register_size_valid_p = 0; tdep->register_size = 0; + tdep->gregset = NULL; + tdep->gregset64 = NULL; + tdep->fpregset = NULL; + tdep->fpregset64 = NULL; if (info.target_desc) { diff --git a/gdb/mips-tdep.h b/gdb/mips-tdep.h index e289818..48b6331 100644 --- a/gdb/mips-tdep.h +++ b/gdb/mips-tdep.h @@ -97,6 +97,14 @@ struct gdbarch_tdep int register_size_valid_p; int register_size; + /* General-purpose registers. */ + struct regset *gregset; + struct regset *gregset64; + + /* Floating-point registers. */ + struct regset *fpregset; + struct regset *fpregset64; + /* Return the expected next PC if FRAME is stopped at a syscall instruction. */ CORE_ADDR (*syscall_next_pc) (struct frame_info *frame); -- 2.7.4