X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gas%2Fconfig%2Ftc-avr.h;h=d58222ec7757b6e6c5fc14769e7f5b0c17c0609f;hb=3528c362d9471524cfe8a76c692081838b292d64;hp=ee36e65b5aa70a9aec6ec0fe620a2f736d4b0104;hpb=94d4433aa6a50ca4258164e33f6f46fdf4637346;p=deliverable%2Fbinutils-gdb.git diff --git a/gas/config/tc-avr.h b/gas/config/tc-avr.h index ee36e65b5a..d58222ec77 100644 --- a/gas/config/tc-avr.h +++ b/gas/config/tc-avr.h @@ -1,6 +1,5 @@ /* This file is tc-avr.h - Copyright 1999, 2000, 2001, 2002, 2005, 2006, 2007 - Free Software Foundation, Inc. + Copyright (C) 1999-2019 Free Software Foundation, Inc. Contributed by Denis Chertykov @@ -46,21 +45,43 @@ nonstandard escape sequences in a string. */ #define ONLY_STANDARD_ESCAPES +#define DIFF_EXPR_OK /* .-foo gets turned into PC relative relocs */ + /* GAS will call this function for any expression that can not be recognized. When the function is called, `input_line_pointer' will point to the start of the expression. */ #define md_operand(x) +typedef struct +{ + /* Name of the expression modifier allowed with .byte, .word, etc. */ + const char *name; + + /* Only allowed with n bytes of data. */ + int nbytes; + + /* Associated RELOC. */ + bfd_reloc_code_real_type reloc; + + /* Part of the error message. */ + const char *error; +} exp_mod_data_t; + +extern const exp_mod_data_t exp_mod_data[]; +#define TC_PARSE_CONS_RETURN_TYPE const exp_mod_data_t * +#define TC_PARSE_CONS_RETURN_NONE exp_mod_data + /* You may define this macro to parse an expression used in a data allocation pseudo-op such as `.word'. You can use this to recognize relocation directives that may appear in such directives. */ #define TC_PARSE_CONS_EXPRESSION(EXPR,N) avr_parse_cons_expression (EXPR, N) -extern void avr_parse_cons_expression (expressionS *, int); +extern const exp_mod_data_t *avr_parse_cons_expression (expressionS *, int); /* You may define this macro to generate a fixup for a data allocation pseudo-op. */ -#define TC_CONS_FIX_NEW(FRAG,WHERE,N,EXP) avr_cons_fix_new (FRAG, WHERE, N, EXP) -extern void avr_cons_fix_new (fragS *,int, int, expressionS *); +#define TC_CONS_FIX_NEW avr_cons_fix_new +extern void avr_cons_fix_new (fragS *,int, int, expressionS *, + const exp_mod_data_t *); /* This should just call either `number_to_chars_bigendian' or `number_to_chars_littleendian', whichever is appropriate. On @@ -93,6 +114,19 @@ extern void avr_cons_fix_new (fragS *,int, int, expressionS *); visible symbols can be overridden. */ #define EXTERN_FORCE_RELOC 0 +/* If defined, this macro allows control over whether fixups for a + given section will be processed when the linkrelax variable is + set. Define it to zero and handle things in md_apply_fix instead.*/ +#define TC_LINKRELAX_FIXUP(SEG) 0 + +/* If this macro returns non-zero, it guarantees that a relocation will be emitted + even when the value can be resolved locally. Do that if linkrelax is turned on */ +#define TC_FORCE_RELOCATION(fix) avr_force_relocation (fix) +#define TC_FORCE_RELOCATION_SUB_SAME(fix, seg) \ + (GENERIC_FORCE_RELOCATION_SUB_SAME (fix, seg) \ + || avr_force_relocation (fix)) +extern int avr_force_relocation (struct fix *); + /* Values passed to md_apply_fix don't include the symbol value. */ #define MD_APPLY_SYM_VALUE(FIX) 0 @@ -150,6 +184,12 @@ extern long md_pcrel_from_section (struct fix *, segT); goto SKIP; \ } +/* This macro is evaluated for any fixup with a fx_subsy that + fixup_segment cannot reduce to a number. If the macro returns + false an error will be reported. */ +#define TC_VALIDATE_FIX_SUB(fix, seg) avr_validate_fix_sub (fix) +extern int avr_validate_fix_sub (struct fix *); + /* This target is buggy, and sets fix size too large. */ #define TC_FX_SIZE_SLACK(FIX) 2 @@ -171,3 +211,37 @@ extern long md_pcrel_from_section (struct fix *, segT); /* Define a hook to setup initial CFI state. */ extern void tc_cfi_frame_initial_instructions (void); #define tc_cfi_frame_initial_instructions tc_cfi_frame_initial_instructions + +/* The difference between same-section symbols may be affected by linker + relaxation, so do not resolve such expressions in the assembler. */ +#define md_allow_local_subtract(l,r,s) avr_allow_local_subtract (l, r, s) +extern bfd_boolean avr_allow_local_subtract (expressionS *, expressionS *, segT); + +#define elf_tc_final_processing avr_elf_final_processing +extern void avr_elf_final_processing (void); + +#define md_pre_output_hook avr_pre_output_hook () +extern void avr_pre_output_hook (void); + +#define md_undefined_symbol avr_undefined_symbol +extern symbolS* avr_undefined_symbol (char*); + +#define md_post_relax_hook avr_post_relax_hook () +extern void avr_post_relax_hook (void); + +#define HANDLE_ALIGN(fragP) avr_handle_align (fragP) +extern void avr_handle_align (fragS *); + +struct avr_frag_data +{ + unsigned is_org : 1; + unsigned is_align : 1; + unsigned has_fill : 1; + + char fill; + offsetT alignment; + unsigned int prev_opcode; +}; +#define TC_FRAG_TYPE struct avr_frag_data +#define TC_FRAG_INIT(frag, max_bytes) avr_frag_init (frag) +extern void avr_frag_init (fragS *);