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x86: make TC_FRAG_INIT() resolve to a function call

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This way we can avoid making various global variables non-static. Their
set is to only ever grow, really.
This commit is contained in:
Jan Beulich
2025-09-08 11:10:55 +02:00
parent 5e3d14a179
commit 149e0b44f3
2 changed files with 25 additions and 37 deletions
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26
gas/config/tc-i386.c
View File

@@ -648,7 +648,7 @@ static int this_operand = -1;
/* Are we processing a .insn directive? */
#define dot_insn() (i.tm.mnem_off == MN__insn)
enum i386_flag_code i386_flag_code;
static enum i386_flag_code i386_flag_code;
#define flag_code i386_flag_code /* Permit to continue using original name. */
static unsigned int object_64bit;
static unsigned int disallow_64bit_reloc;
@@ -861,7 +861,7 @@ static const char *cpu_arch_name = NULL;
static char *cpu_sub_arch_name = NULL;
/* CPU feature flags. */
i386_cpu_flags cpu_arch_flags = CPU_UNKNOWN_FLAGS;
static i386_cpu_flags cpu_arch_flags = CPU_UNKNOWN_FLAGS;
/* ISA extensions available in 64-bit mode only. */
static const i386_cpu_flags cpu_64_flags = CPU_ANY_64_FLAGS;
@@ -870,13 +870,13 @@ static const i386_cpu_flags cpu_64_flags = CPU_ANY_64_FLAGS;
static int cpu_arch_tune_set = 0;
/* Cpu we are generating instructions for. */
enum processor_type cpu_arch_tune = PROCESSOR_UNKNOWN;
static enum processor_type cpu_arch_tune = PROCESSOR_UNKNOWN;
/* CPU instruction set architecture used. */
enum processor_type cpu_arch_isa = PROCESSOR_UNKNOWN;
static enum processor_type cpu_arch_isa = PROCESSOR_UNKNOWN;
/* CPU feature flags of instruction set architecture used. */
i386_cpu_flags cpu_arch_isa_flags;
static i386_cpu_flags cpu_arch_isa_flags;
/* If set, conditional jumps are not automatically promoted to handle
larger than a byte offset. */
@@ -15667,6 +15667,22 @@ i386_att_operand (char *operand_string)
return 1; /* Normal return. */
}
/* Initialize the tc_frag_data field of a fragment. */
void i386_frag_init (fragS *fragP, size_t max_bytes)
{
memset (&fragP->tc_frag_data, 0, sizeof (fragP->tc_frag_data));
fragP->tc_frag_data.isa = cpu_arch_isa;
fragP->tc_frag_data.tune = cpu_arch_tune;
fragP->tc_frag_data.cpunop = cpu_arch_flags.bitfield.cpunop;
fragP->tc_frag_data.isanop = cpu_arch_isa_flags.bitfield.cpunop;
fragP->tc_frag_data.code = i386_flag_code;
fragP->tc_frag_data.max_bytes = max_bytes;
fragP->tc_frag_data.last_insn_normal
= (seg_info(now_seg)->tc_segment_info_data.last_insn.kind
== last_insn_other);
}
/* Calculate the maximum variable size (i.e., excluding fr_fix)
that an rs_machine_dependent frag may reach. */

36
gas/config/tc-i386.h
View File

@@ -277,19 +277,14 @@ enum processor_type
PROCESSOR_NONE
};
extern i386_cpu_flags cpu_arch_flags;
extern enum processor_type cpu_arch_tune;
extern enum processor_type cpu_arch_isa;
extern i386_cpu_flags cpu_arch_isa_flags;
/* We support four different modes. I386_FLAG_CODE variable is used to
distinguish three of these. */
extern enum i386_flag_code {
enum i386_flag_code {
CODE_32BIT,
CODE_16BIT,
CODE_64BIT
} i386_flag_code;
};
struct i386_segment_info {
/* Type of previous "instruction", e.g. .byte or stand-alone prefix. */
@@ -341,31 +336,8 @@ struct i386_tc_frag_data
the isa/tune settings at the time the .align was assembled. */
#define TC_FRAG_TYPE struct i386_tc_frag_data
#define TC_FRAG_INIT(FRAGP, MAX_BYTES) \
do \
{ \
(FRAGP)->tc_frag_data.u.padding_fragP = NULL; \
(FRAGP)->tc_frag_data.padding_address = 0; \
(FRAGP)->tc_frag_data.isa = cpu_arch_isa; \
(FRAGP)->tc_frag_data.tune = cpu_arch_tune; \
(FRAGP)->tc_frag_data.cpunop = cpu_arch_flags.bitfield.cpunop; \
(FRAGP)->tc_frag_data.isanop = cpu_arch_isa_flags.bitfield.cpunop; \
(FRAGP)->tc_frag_data.code = i386_flag_code; \
(FRAGP)->tc_frag_data.max_bytes = (MAX_BYTES); \
(FRAGP)->tc_frag_data.length = 0; \
(FRAGP)->tc_frag_data.last_length = 0; \
(FRAGP)->tc_frag_data.max_prefix_length = 0; \
(FRAGP)->tc_frag_data.prefix_length = 0; \
(FRAGP)->tc_frag_data.default_prefix = 0; \
(FRAGP)->tc_frag_data.cmp_size = 0; \
(FRAGP)->tc_frag_data.classified = 0; \
(FRAGP)->tc_frag_data.branch_type = 0; \
(FRAGP)->tc_frag_data.mf_type = 0; \
(FRAGP)->tc_frag_data.last_insn_normal \
= (seg_info(now_seg)->tc_segment_info_data.last_insn.kind \
== last_insn_other); \
} \
while (0)
void i386_frag_init (fragS *, size_t);
#define TC_FRAG_INIT(fragP, max_bytes) i386_frag_init (fragP, max_bytes)
#define WORKING_DOT_WORD 1