diff options
Diffstat (limited to 'gcc/config/ia64/ia64.h')
| -rw-r--r-- | gcc/config/ia64/ia64.h | 85 |
1 files changed, 29 insertions, 56 deletions
diff --git a/gcc/config/ia64/ia64.h b/gcc/config/ia64/ia64.h index 396764be302..62cc4fb239c 100644 --- a/gcc/config/ia64/ia64.h +++ b/gcc/config/ia64/ia64.h @@ -2149,19 +2149,6 @@ do { \ } while (0) -/* Output EH data to the unwind segment. */ -#define ASM_OUTPUT_EH_CHAR(FILE, VALUE) \ - ASM_OUTPUT_XDATA_CHAR(FILE, ".IA_64.unwind_info", VALUE) - -#define ASM_OUTPUT_EH_SHORT(FILE, VALUE) \ - ASM_OUTPUT_XDATA_SHORT(FILE, ".IA_64.unwind_info", VALUE) - -#define ASM_OUTPUT_EH_INT(FILE, VALUE) \ - ASM_OUTPUT_XDATA_INT(FILE, ".IA_64.unwind_info", VALUE) - -#define ASM_OUTPUT_EH_DOUBLE_INT(FILE, VALUE) \ - ASM_OUTPUT_XDATA_DOUBLE_INT(FILE, ".IA_64.unwind_info", VALUE) - /* A C statement to output to the stdio stream STREAM an assembler instruction to assemble a single byte containing the number VALUE. */ @@ -2473,26 +2460,6 @@ do { \ /* Assembler Commands for Exception Regions. */ -/* ??? This entire section of ia64.h needs to be implemented and then cleaned - up. */ - -/* A C expression to output text to mark the start of an exception region. - - This macro need not be defined on most platforms. */ -/* #define ASM_OUTPUT_EH_REGION_BEG() */ - -/* A C expression to output text to mark the end of an exception region. - - This macro need not be defined on most platforms. */ -/* #define ASM_OUTPUT_EH_REGION_END() */ - -/* A C expression to switch to the section in which the main exception table is - to be placed. The default is a section named `.gcc_except_table' on machines - that support named sections via `ASM_OUTPUT_SECTION_NAME', otherwise if `-fpic' - or `-fPIC' is in effect, the `data_section', otherwise the - `readonly_data_section'. */ -/* #define EXCEPTION_SECTION() */ - /* If defined, a C string constant for the assembler operation to switch to the section for exception handling frame unwind information. If not defined, GNU CC will provide a default definition if the target supports named @@ -2503,26 +2470,34 @@ do { \ information and the default definition does not work. */ #define EH_FRAME_SECTION_ASM_OP "\t.section\t.IA_64.unwind,\"aw\"" -/* A C expression that is nonzero if the normal exception table output should - be omitted. - - This macro need not be defined on most platforms. */ -/* #define OMIT_EH_TABLE() */ - -/* Alternate runtime support for looking up an exception at runtime and finding - the associated handler, if the default method won't work. - - This macro need not be defined on most platforms. */ -/* #define EH_TABLE_LOOKUP() */ - -/* A C expression that decides whether or not the current function needs to - have a function unwinder generated for it. See the file `except.c' for - details on when to define this, and how. */ -/* #define DOESNT_NEED_UNWINDER */ +/* Select a format to encode pointers in exception handling data. CODE + is 0 for data, 1 for code labels, 2 for function pointers. GLOBAL is + true if the symbol may be affected by dynamic relocations. */ +#define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \ + (((CODE) == 1 ? DW_EH_PE_textrel : DW_EH_PE_datarel) \ + | ((GLOBAL) ? DW_EH_PE_indirect : 0) | DW_EH_PE_udata8) + +/* Handle special EH pointer encodings. Absolute, pc-relative, and + indirect are handled automatically. */ +#define ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX(FILE, ENCODING, SIZE, ADDR, DONE) \ + do { \ + const char *reltag = NULL; \ + if (((ENCODING) & 0xF0) == DW_EH_PE_textrel) \ + reltag = "@segrel("; \ + else if (((ENCODING) & 0xF0) == DW_EH_PE_datarel) \ + reltag = "@gprel("; \ + if (reltag) \ + { \ + fputs (((SIZE) == 4 ? UNALIGNED_INT_ASM_OP \ + : (SIZE) == 8 ? UNALIGNED_DOUBLE_INT_ASM_OP \ + : (abort (), "")), FILE); \ + fputs (reltag, FILE); \ + assemble_name (FILE, XSTR (ADDR, 0)); \ + fputc (')', FILE); \ + goto DONE; \ + } \ + } while (0) -/* An rtx used to mask the return address found via RETURN_ADDR_RTX, so that it - does not contain any extraneous set bits in it. */ -/* #define MASK_RETURN_ADDR */ /* Assembler Commands for Alignment. */ @@ -2846,13 +2821,11 @@ do { \ extern int ia64_final_schedule; -/* ??? Hack until frame-ia64.c is updated. #define IA64_UNWIND_INFO 1 -*/ - -#define HANDLER_SECTION fprintf (asm_out_file, "\t.personality\t__ia64_personality_v1\n\t.handlerdata\n"); #define IA64_UNWIND_EMIT(f,i) process_for_unwind_directive (f,i) +#define EH_RETURN_DATA_REGNO(N) ((N) < 4 ? (N) + 15 : INVALID_REGNUM) + /* This function contains machine specific function data. */ struct machine_function { |