From: Andreas Arnez Date: Mon, 5 May 2014 12:58:11 +0000 (+0000) Subject: X86: Replace regset_alloc() invocations by static regset structures. X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=ecc37a5acc8ff504d62487149f61955343d35fcf;p=deliverable%2Fbinutils-gdb.git X86: Replace regset_alloc() invocations by static regset structures. After removal of the regset_alloc invocations, the appropriate tdep fields become obsolete and are thus removed. --- diff --git a/gdb/ChangeLog b/gdb/ChangeLog index ea32205cf0..5eef2d71d4 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,33 @@ +2014-05-21 Andreas Arnez + + * amd64-tdep.c (amd64_fpregset, amd64_xstateregset): New static + regset structures. + (amd64_regset_from_core_section): Remove dynamic regset + allocations. + * amd64obsd-tdep.c (amd64obsd_combined_regset): New static regset + structure. + (amd64obsd_regset_from_core_section): Remove dynamic regset + allocation. + * i386-cygwin-tdep.c (i386_windows_regset_from_core_section): + Likewise. + * i386-nto-tdep.c (i386nto_supply_gregset): Adjust call to + x86-common regset supply function. + * i386-tdep.c (i386_collect_gregset): Make static. + (i386_gregset): New global regset structure. + (i386_fpregset, i386_xstateregset): New static regset structures. + (i386_regset_from_core_section): Remove dynamic regset + allocations. + (i386_gdbarch_init): Remove initialization of tdep fields + 'gregset', 'fpregset', and 'xstateregset'. + * i386-tdep.h (struct gdbarch_tdep): Remove fields 'gregset', + 'fpregset', and 'xstateregset'. + (i386_collect_gregset): Remove prototype. + (i386_gregset): New declaration. + * i386obsd-tdep.c (i386obsd_aout_gregset): New static regset + structure. + (i386obsd_aout_regset_from_core_section): Remove dynamic regset + allocation. + 2014-05-21 Andreas Arnez * arm-linux-tdep.c (arm_linux_gregset, arm_linux_fpregset) diff --git a/gdb/amd64-tdep.c b/gdb/amd64-tdep.c index 1b9797a29a..10bd31b269 100644 --- a/gdb/amd64-tdep.c +++ b/gdb/amd64-tdep.c @@ -2886,6 +2886,16 @@ amd64_collect_xstateregset (const struct regset *regset, amd64_collect_xsave (regcache, regnum, xstateregs, 1); } +static const struct regset amd64_fpregset = + { + NULL, amd64_supply_fpregset, amd64_collect_fpregset + }; + +static const struct regset amd64_xstateregset = + { + NULL, amd64_supply_xstateregset, amd64_collect_xstateregset + }; + /* Return the appropriate register set for the core section identified by SECT_NAME and SECT_SIZE. */ @@ -2896,23 +2906,10 @@ amd64_regset_from_core_section (struct gdbarch *gdbarch, struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); if (strcmp (sect_name, ".reg2") == 0 && sect_size == tdep->sizeof_fpregset) - { - if (tdep->fpregset == NULL) - tdep->fpregset = regset_alloc (gdbarch, amd64_supply_fpregset, - amd64_collect_fpregset); - - return tdep->fpregset; - } + return &amd64_fpregset; if (strcmp (sect_name, ".reg-xstate") == 0) - { - if (tdep->xstateregset == NULL) - tdep->xstateregset = regset_alloc (gdbarch, - amd64_supply_xstateregset, - amd64_collect_xstateregset); - - return tdep->xstateregset; - } + return &amd64_xstateregset; return i386_regset_from_core_section (gdbarch, sect_name, sect_size); } diff --git a/gdb/amd64obsd-tdep.c b/gdb/amd64obsd-tdep.c index 2cc0a0f254..5a5e209ac9 100644 --- a/gdb/amd64obsd-tdep.c +++ b/gdb/amd64obsd-tdep.c @@ -55,6 +55,11 @@ amd64obsd_supply_regset (const struct regset *regset, ((const gdb_byte *)regs) + tdep->sizeof_gregset); } +static const struct regset amd64obsd_combined_regset = + { + NULL, amd64obsd_supply_regset, NULL + }; + static const struct regset * amd64obsd_regset_from_core_section (struct gdbarch *gdbarch, const char *sect_name, size_t sect_size) @@ -66,11 +71,7 @@ amd64obsd_regset_from_core_section (struct gdbarch *gdbarch, if (strcmp (sect_name, ".reg") == 0 && sect_size >= tdep->sizeof_gregset + I387_SIZEOF_FXSAVE) - { - if (tdep->gregset == NULL) - tdep->gregset = regset_alloc (gdbarch, amd64obsd_supply_regset, NULL); - return tdep->gregset; - } + return &amd64obsd_combined_regset; return NULL; } diff --git a/gdb/i386-cygwin-tdep.c b/gdb/i386-cygwin-tdep.c index 7b7785a07e..a23f80e973 100644 --- a/gdb/i386-cygwin-tdep.c +++ b/gdb/i386-cygwin-tdep.c @@ -96,16 +96,9 @@ static const struct regset * i386_windows_regset_from_core_section (struct gdbarch *gdbarch, const char *sect_name, size_t sect_size) { - struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); - if (strcmp (sect_name, ".reg") == 0 && sect_size == I386_WINDOWS_SIZEOF_GREGSET) - { - if (tdep->gregset == NULL) - tdep->gregset = regset_alloc (gdbarch, i386_supply_gregset, - i386_collect_gregset); - return tdep->gregset; - } + return &i386_gregset; return NULL; } diff --git a/gdb/i386-nto-tdep.c b/gdb/i386-nto-tdep.c index 8d8ba10852..d005914ce3 100644 --- a/gdb/i386-nto-tdep.c +++ b/gdb/i386-nto-tdep.c @@ -82,13 +82,9 @@ i386nto_supply_gregset (struct regcache *regcache, char *gpregs) struct gdbarch *gdbarch = get_regcache_arch (regcache); struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); - if(tdep->gregset == NULL) - tdep->gregset = regset_alloc (gdbarch, i386_supply_gregset, - i386_collect_gregset); - gdb_assert (tdep->gregset_reg_offset == i386nto_gregset_reg_offset); - tdep->gregset->supply_regset (tdep->gregset, regcache, -1, - gpregs, NUM_GPREGS * 4); + i386_gregset.supply_regset (&i386_gregset, regcache, -1, + gpregs, NUM_GPREGS * 4); } static void diff --git a/gdb/i386-tdep.c b/gdb/i386-tdep.c index 7d2363fd9b..88fc31f2a2 100644 --- a/gdb/i386-tdep.c +++ b/gdb/i386-tdep.c @@ -3744,7 +3744,7 @@ i386_supply_gregset (const struct regset *regset, struct regcache *regcache, general-purpose register set REGSET. If REGNUM is -1, do this for all registers in REGSET. */ -void +static void i386_collect_gregset (const struct regset *regset, const struct regcache *regcache, int regnum, void *gregs, size_t len) @@ -3828,6 +3828,23 @@ i386_collect_xstateregset (const struct regset *regset, i387_collect_xsave (regcache, regnum, xstateregs, 1); } +/* Register set definitions. */ + +const struct regset i386_gregset = + { + NULL, i386_supply_gregset, i386_collect_gregset + }; + +static const struct regset i386_fpregset = + { + NULL, i386_supply_fpregset, i386_collect_fpregset + }; + +static const struct regset i386_xstateregset = + { + NULL, i386_supply_xstateregset, i386_collect_xstateregset + }; + /* Return the appropriate register set for the core section identified by SECT_NAME and SECT_SIZE. */ @@ -3838,32 +3855,15 @@ i386_regset_from_core_section (struct gdbarch *gdbarch, struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); if (strcmp (sect_name, ".reg") == 0 && sect_size == tdep->sizeof_gregset) - { - if (tdep->gregset == NULL) - tdep->gregset = regset_alloc (gdbarch, i386_supply_gregset, - i386_collect_gregset); - return tdep->gregset; - } + return &i386_gregset; if ((strcmp (sect_name, ".reg2") == 0 && sect_size == tdep->sizeof_fpregset) || (strcmp (sect_name, ".reg-xfp") == 0 && sect_size == I387_SIZEOF_FXSAVE)) - { - if (tdep->fpregset == NULL) - tdep->fpregset = regset_alloc (gdbarch, i386_supply_fpregset, - i386_collect_fpregset); - return tdep->fpregset; - } + return &i386_fpregset; if (strcmp (sect_name, ".reg-xstate") == 0) - { - if (tdep->xstateregset == NULL) - tdep->xstateregset = regset_alloc (gdbarch, - i386_supply_xstateregset, - i386_collect_xstateregset); - - return tdep->xstateregset; - } + return &i386_xstateregset; return NULL; } @@ -8287,17 +8287,13 @@ i386_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) gdbarch = gdbarch_alloc (&info, tdep); /* General-purpose registers. */ - tdep->gregset = NULL; tdep->gregset_reg_offset = NULL; tdep->gregset_num_regs = I386_NUM_GREGS; tdep->sizeof_gregset = 0; /* Floating-point registers. */ - tdep->fpregset = NULL; tdep->sizeof_fpregset = I387_SIZEOF_FSAVE; - tdep->xstateregset = NULL; - /* The default settings include the FPU registers, the MMX registers and the SSE registers. This can be overridden for a specific ABI by adjusting the members `st0_regnum', `mm0_regnum' and diff --git a/gdb/i386-tdep.h b/gdb/i386-tdep.h index 2ada2bd96d..e0950a3f27 100644 --- a/gdb/i386-tdep.h +++ b/gdb/i386-tdep.h @@ -56,18 +56,13 @@ enum struct_return struct gdbarch_tdep { /* General-purpose registers. */ - struct regset *gregset; int *gregset_reg_offset; int gregset_num_regs; size_t sizeof_gregset; /* Floating-point registers. */ - struct regset *fpregset; size_t sizeof_fpregset; - /* XSAVE extended state. */ - struct regset *xstateregset; - /* Register number for %st(0). The register numbers for the other registers follow from this one. Set this to -1 to indicate the absence of an FPU. */ @@ -389,13 +384,8 @@ extern void i386_supply_gregset (const struct regset *regset, struct regcache *regcache, int regnum, const void *gregs, size_t len); -/* Collect register REGNUM from the register cache REGCACHE and store - it in the buffer specified by GREGS and LEN as described by the - general-purpose register set REGSET. If REGNUM is -1, do this for - all registers in REGSET. */ -extern void i386_collect_gregset (const struct regset *regset, - const struct regcache *regcache, - int regnum, void *gregs, size_t len); +/* General-purpose register set. */ +extern const struct regset i386_gregset; /* Return the appropriate register set for the core section identified by SECT_NAME and SECT_SIZE. */ diff --git a/gdb/i386obsd-tdep.c b/gdb/i386obsd-tdep.c index 7d9ba930ec..8f76e436aa 100644 --- a/gdb/i386obsd-tdep.c +++ b/gdb/i386obsd-tdep.c @@ -152,6 +152,11 @@ i386obsd_aout_supply_regset (const struct regset *regset, i387_supply_fsave (regcache, regnum, gregs + tdep->sizeof_gregset); } +static const struct regset i386obsd_aout_gregset = + { + NULL, i386obsd_aout_supply_regset, NULL + }; + static const struct regset * i386obsd_aout_regset_from_core_section (struct gdbarch *gdbarch, const char *sect_name, @@ -164,12 +169,7 @@ i386obsd_aout_regset_from_core_section (struct gdbarch *gdbarch, if (strcmp (sect_name, ".reg") == 0 && sect_size >= tdep->sizeof_gregset + I387_SIZEOF_FSAVE) - { - if (tdep->gregset == NULL) - tdep->gregset = - regset_alloc (gdbarch, i386obsd_aout_supply_regset, NULL); - return tdep->gregset; - } + return &i386obsd_aout_gregset; return NULL; }