From c9c895b9666e33a2b910faf9c1b667ea665f00f1 Mon Sep 17 00:00:00 2001 From: Simon Marchi Date: Tue, 5 Dec 2017 16:30:24 -0500 Subject: [PATCH] Make tdesc_feature::registers an std::vector This patch makes tdesc_feature::registers an std::vector of unique_ptr to tdesc_reg. This way, we don't have to manually free the tdesc_reg objects and the vector in the tdesc_feature destructor. gdb/ChangeLog: * target-descriptions.c (tdesc_reg_p): Remove typedef. (DEF_VEC_P (tdesc_reg_p)): Remove. (struct tdesc_feature) : Change type to std::vector. <~tdesc_feature>: Don't manually free registers. : Adjust. : Adjust. (tdesc_has_registers): Adjust. (tdesc_find_register_early): Adjust. (tdesc_use_registers): Adjust. (tdesc_create_reg): Adjust. --- gdb/ChangeLog | 13 ++++++++ gdb/target-descriptions.c | 69 +++++++++++++-------------------------- 2 files changed, 35 insertions(+), 47 deletions(-) diff --git a/gdb/ChangeLog b/gdb/ChangeLog index e3c1cbfb286..f454c26033b 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,16 @@ +2017-12-05 Simon Marchi + + * target-descriptions.c (tdesc_reg_p): Remove typedef. + (DEF_VEC_P (tdesc_reg_p)): Remove. + (struct tdesc_feature) : Change type to std::vector. + <~tdesc_feature>: Don't manually free registers. + : Adjust. + : Adjust. + (tdesc_has_registers): Adjust. + (tdesc_find_register_early): Adjust. + (tdesc_use_registers): Adjust. + (tdesc_create_reg): Adjust. + 2017-12-05 Simon Marchi * target-descriptions.c (tdesc_feature) : Change type to diff --git a/gdb/target-descriptions.c b/gdb/target-descriptions.c index eda46a50aed..b35f184e997 100644 --- a/gdb/target-descriptions.c +++ b/gdb/target-descriptions.c @@ -73,7 +73,7 @@ struct property /* An individual register from a target description. */ -typedef struct tdesc_reg : tdesc_element +struct tdesc_reg : tdesc_element { tdesc_reg (struct tdesc_feature *feature, const char *name_, int regnum, int save_restore_, const char *group_, @@ -151,8 +151,9 @@ typedef struct tdesc_reg : tdesc_element { return !(*this == other); } -} *tdesc_reg_p; -DEF_VEC_P(tdesc_reg_p); +}; + +typedef std::unique_ptr tdesc_reg_up; /* A named type from a target description. */ @@ -287,14 +288,9 @@ struct tdesc_feature : tdesc_element virtual ~tdesc_feature () { - struct tdesc_reg *reg; struct tdesc_type *type; int ix; - for (ix = 0; VEC_iterate (tdesc_reg_p, registers, ix, reg); ix++) - delete reg; - VEC_free (tdesc_reg_p, registers); - for (ix = 0; VEC_iterate (tdesc_type_p, types, ix, type); ix++) delete type; VEC_free (tdesc_type_p, types); @@ -307,7 +303,7 @@ struct tdesc_feature : tdesc_element std::string name; /* The registers associated with this feature. */ - VEC(tdesc_reg_p) *registers = NULL; + std::vector> registers; /* The types associated with this feature. */ VEC(tdesc_type_p) *types = NULL; @@ -323,14 +319,9 @@ struct tdesc_feature : tdesc_element ix++) type->accept (v); - struct tdesc_reg *reg; - - for (int ix = 0; - VEC_iterate (tdesc_reg_p, registers, ix, reg); - ix++) + for (const tdesc_reg_up ® : registers) reg->accept (v); - v.visit_post (this); } @@ -339,20 +330,15 @@ struct tdesc_feature : tdesc_element if (name != other.name) return false; - if (VEC_length (tdesc_reg_p, registers) - != VEC_length (tdesc_reg_p, other.registers)) + if (registers.size () != other.registers.size ()) return false; - struct tdesc_reg *reg; - - for (int ix = 0; - VEC_iterate (tdesc_reg_p, registers, ix, reg); - ix++) + for (int ix = 0; ix < registers.size (); ix++) { - tdesc_reg *reg2 - = VEC_index (tdesc_reg_p, other.registers, ix); + const tdesc_reg_up ®1 = registers[ix]; + const tdesc_reg_up ®2 = other.registers[ix]; - if (reg != reg2 && *reg != *reg2) + if (reg1 != reg2 && *reg1 != *reg2) return false; } @@ -725,7 +711,7 @@ tdesc_has_registers (const struct target_desc *target_desc) return 0; for (const tdesc_feature_up &feature : target_desc->features) - if (! VEC_empty (tdesc_reg_p, feature->registers)) + if (!feature->registers.empty ()) return 1; return 0; @@ -1101,14 +1087,9 @@ static struct tdesc_reg * tdesc_find_register_early (const struct tdesc_feature *feature, const char *name) { - int ixr; - struct tdesc_reg *reg; - - for (ixr = 0; - VEC_iterate (tdesc_reg_p, feature->registers, ixr, reg); - ixr++) + for (const tdesc_reg_up ® : feature->registers) if (strcasecmp (reg->name, name) == 0) - return reg; + return reg.get (); return NULL; } @@ -1433,8 +1414,6 @@ tdesc_use_registers (struct gdbarch *gdbarch, struct tdesc_arch_data *early_data) { int num_regs = gdbarch_num_regs (gdbarch); - int ixr; - struct tdesc_reg *reg; struct tdesc_arch_data *data; struct tdesc_arch_reg *arch_reg, new_arch_reg = { 0 }; htab_t reg_hash; @@ -1454,18 +1433,16 @@ tdesc_use_registers (struct gdbarch *gdbarch, the initial size is arbitrary. */ reg_hash = htab_create (37, htab_hash_pointer, htab_eq_pointer, NULL); for (const tdesc_feature_up &feature : target_desc->features) - for (ixr = 0; - VEC_iterate (tdesc_reg_p, feature->registers, ixr, reg); - ixr++) + for (const tdesc_reg_up ® : feature->registers) { - void **slot = htab_find_slot (reg_hash, reg, INSERT); + void **slot = htab_find_slot (reg_hash, reg.get (), INSERT); - *slot = reg; + *slot = reg.get (); } /* Remove any registers which were assigned numbers by the architecture. */ - for (ixr = 0; + for (int ixr = 0; VEC_iterate (tdesc_arch_reg, data->arch_regs, ixr, arch_reg); ixr++) if (arch_reg->reg) @@ -1480,12 +1457,10 @@ tdesc_use_registers (struct gdbarch *gdbarch, while (VEC_length (tdesc_arch_reg, data->arch_regs) < num_regs) VEC_safe_push (tdesc_arch_reg, data->arch_regs, &new_arch_reg); for (const tdesc_feature_up &feature : target_desc->features) - for (ixr = 0; - VEC_iterate (tdesc_reg_p, feature->registers, ixr, reg); - ixr++) - if (htab_find (reg_hash, reg) != NULL) + for (const tdesc_reg_up ® : feature->registers) + if (htab_find (reg_hash, reg.get ()) != NULL) { - new_arch_reg.reg = reg; + new_arch_reg.reg = reg.get (); VEC_safe_push (tdesc_arch_reg, data->arch_regs, &new_arch_reg); num_regs++; } @@ -1512,7 +1487,7 @@ tdesc_create_reg (struct tdesc_feature *feature, const char *name, tdesc_reg *reg = new tdesc_reg (feature, name, regnum, save_restore, group, bitsize, type); - VEC_safe_push (tdesc_reg_p, feature->registers, reg); + feature->registers.emplace_back (reg); } /* See arch/tdesc.h. */ -- 2.30.2