Catch up with other Alpha-ELF changes. This will get cleaned up
even more somtime soon.
This commit is contained in:
thorpej
parent
80ed7d6a42
commit
72a263b8f7
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@ -47,6 +47,30 @@ Boston, MA 02111-1307, USA. */
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#undef ASM_FINAL_SPEC
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#undef CC1_SPEC
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#define CC1_SPEC "%{G*}"
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#undef ASM_SPEC
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#define ASM_SPEC "%{G*} %{relax:-relax} %{gdwarf*:-no-mdebug}"
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/* Provide a LINK_SPEC appropriate for a NetBSD/alpha ELF target. Only
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the linker emulation and -O options are Alpha-specific. The rest are
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common to all ELF targets, except for the name of the start function. */
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#undef LINK_SPEC
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#define LINK_SPEC \
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"-m elf64alpha \
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%{O*:-O3} %{!O*:-O1} \
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%{assert*} %{R*} \
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%{shared:-shared} \
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%{!shared: \
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-dc -dp \
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%{!nostdlib:%{!r*:%{!e*:-e __start}}} \
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%{!static: \
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%{rdynamic:-export-dynamic} \
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%{!dynamic-linker:-dynamic-linker /usr/libexec/ld.elf_so}} \
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%{static:-static}}"
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/* Names to predefine in the preprocessor for this target machine.
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XXX NetBSD, by convention, shouldn't do __alpha, but lots of applications
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expect it because that's what OSF/1 does. */
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@ -83,43 +107,6 @@ Boston, MA 02111-1307, USA. */
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#define bsd4_4
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#undef HAS_INIT_SECTION
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/* Provide an ASM_SPEC appropriate for a NetBSD/alpha target. This differs
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from the generic NetBSD ASM_SPEC in that no special handling of PIC is
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necessary on the Alpha. */
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#undef ASM_SPEC
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#define ASM_SPEC " %| \
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%{mcpu=ev4:-mev4} \
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%{mcpu=21064:-m21064} \
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%{mcpu=ev5:-mev5} \
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%{mcpu=21164:-m21164} \
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%{mcpu=ev56:-mev56} \
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%{mcpu=21164a:-m21164a} \
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%{mcpu=pca56:-mpca56} \
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%{mcpu=21164pc|mcpu=21164PC:-m21164pc} \
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%{mcpu=ev6:-mev6} \
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%{mcpu=21264:-m21264} \
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%{mcpu=ev67:-mev6} \
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%{mcpu=21264a:-m21264}"
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/* Provide a LINK_SPEC appropriate for a NetBSD/alpha ELF target. Only
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the linker emulation and -O options are Alpha-specific. The rest are
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common to all ELF targets, except for the name of the start function. */
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#undef LINK_SPEC
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#define LINK_SPEC \
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"-m elf64alpha \
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%{O*:-O3} %{!O*:-O1} \
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%{assert*} %{R*} \
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%{shared:-shared} \
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%{!shared: \
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-dc -dp \
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%{!nostdlib:%{!r*:%{!e*:-e __start}}} \
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%{!static: \
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%{rdynamic:-export-dynamic} \
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%{!dynamic-linker:-dynamic-linker /usr/libexec/ld.elf_so}} \
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%{static:-static}}"
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#undef DEFAULT_VTABLE_THUNKS
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#define DEFAULT_VTABLE_THUNKS 1
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@ -127,12 +114,21 @@ Boston, MA 02111-1307, USA. */
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#undef ASM_FILE_START
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#define ASM_FILE_START(FILE) \
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{ \
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alpha_write_verstamp (FILE); \
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output_file_directive (FILE, main_input_filename); \
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fprintf (FILE, "\t.version\t\"01.01\"\n"); \
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do { \
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if (write_symbols != DWARF2_DEBUG) \
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{ \
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alpha_write_verstamp (FILE); \
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output_file_directive (FILE, main_input_filename); \
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} \
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fprintf (FILE, "\t.set noat\n"); \
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}
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fprintf (FILE, "\t.set noreorder\n"); \
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if (TARGET_BWX | TARGET_MAX | TARGET_FIX | TARGET_CIX) \
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{ \
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fprintf (FILE, "\t.arch %s\n", \
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(alpha_cpu == PROCESSOR_EV6 ? "ev6" \
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: TARGET_MAX ? "pca56" : "ev56")); \
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} \
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} while (0)
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#define ASM_OUTPUT_SOURCE_LINE(STREAM, LINE) \
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alpha_output_lineno (STREAM, LINE)
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@ -155,8 +151,9 @@ extern void output_file_directive ();
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#else
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#define ASM_FILE_END(FILE) \
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do { \
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fprintf ((FILE), "\t%s\t\"GCC: (GNU) %s\"\n", \
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IDENT_ASM_OP, version_string); \
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if (!flag_no_ident) \
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fprintf ((FILE), "\t%s\t\"GCC: (GNU) %s\"\n", \
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IDENT_ASM_OP, version_string); \
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} while (0)
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#endif
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@ -227,15 +224,27 @@ do { \
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the linker seems to want the alignment of data objects
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to depend on their types. We do exactly that here. */
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#define LOCAL_ASM_OP ".local"
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#undef ASM_OUTPUT_ALIGNED_LOCAL
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#define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \
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do { \
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fprintf ((FILE), "\t%s\t", LOCAL_ASM_OP); \
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assemble_name ((FILE), (NAME)); \
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fprintf ((FILE), "\n"); \
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ASM_OUTPUT_ALIGNED_COMMON (FILE, NAME, SIZE, ALIGN); \
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if ((SIZE) <= g_switch_value) \
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sbss_section(); \
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else \
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bss_section(); \
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fprintf (FILE, "\t%s\t ", TYPE_ASM_OP); \
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assemble_name (FILE, NAME); \
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putc (',', FILE); \
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fprintf (FILE, TYPE_OPERAND_FMT, "object"); \
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putc ('\n', FILE); \
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if (!flag_inhibit_size_directive) \
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{ \
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fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \
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assemble_name (FILE, NAME); \
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fprintf (FILE, ",%d\n", (SIZE)); \
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} \
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ASM_OUTPUT_ALIGN ((FILE), exact_log2((ALIGN) / BITS_PER_UNIT)); \
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ASM_OUTPUT_LABEL(FILE, NAME); \
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ASM_OUTPUT_SKIP((FILE), (SIZE)); \
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} while (0)
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/* This is the pseudo-op used to generate a 64-bit word of data with a
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@ -243,6 +252,18 @@ do { \
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#define INT_ASM_OP ".quad"
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/* Biggest alignment supported by the object file format of this
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machine. Use this macro to limit the alignment which can be
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specified using the `__attribute__ ((aligned (N)))' construct. If
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not defined, the default value is `BIGGEST_ALIGNMENT'.
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This value is really 2^63. Since gcc figures the alignment in bits,
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we could only potentially get to 2^60 on suitible hosts. Due to other
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considerations in varasm, we must restrict this to what fits in an int. */
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#define MAX_OFILE_ALIGNMENT \
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(1 << (HOST_BITS_PER_INT < 64 ? HOST_BITS_PER_INT - 2 : 62))
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/* This is the pseudo-op used to generate a contiguous sequence of byte
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values from a double-quoted string WITHOUT HAVING A TERMINATING NUL
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AUTOMATICALLY APPENDED. This is the same for most svr4 assemblers. */
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@ -280,6 +301,11 @@ do { \
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#define CTORS_SECTION_ASM_OP ".section\t.ctors,\"aw\""
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#define DTORS_SECTION_ASM_OP ".section\t.dtors,\"aw\""
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/* Handle the small data sections. */
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#define BSS_SECTION_ASM_OP ".section\t.bss"
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#define SBSS_SECTION_ASM_OP ".section\t.sbss,\"aw\""
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#define SDATA_SECTION_ASM_OP ".section\t.sdata,\"aw\""
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/* On svr4, we *do* have support for the .init and .fini sections, and we
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can put stuff in there to be executed before and after `main'. We let
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crtstuff.c and other files know this by defining the following symbols.
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@ -295,7 +321,7 @@ do { \
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includes this file. */
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#undef EXTRA_SECTIONS
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#define EXTRA_SECTIONS in_const, in_ctors, in_dtors
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#define EXTRA_SECTIONS in_const, in_ctors, in_dtors, in_sbss, in_sdata
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/* A default list of extra section function definitions. For targets
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that use additional sections (e.g. .tdesc) you should override this
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@ -304,8 +330,10 @@ do { \
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#undef EXTRA_SECTION_FUNCTIONS
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#define EXTRA_SECTION_FUNCTIONS \
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CONST_SECTION_FUNCTION \
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CTORS_SECTION_FUNCTION \
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DTORS_SECTION_FUNCTION
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SECTION_FUNCTION_TEMPLATE(ctors_section, in_ctors, CTORS_SECTION_ASM_OP) \
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SECTION_FUNCTION_TEMPLATE(dtors_section, in_dtors, DTORS_SECTION_ASM_OP) \
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SECTION_FUNCTION_TEMPLATE(sbss_section, in_sbss, SBSS_SECTION_ASM_OP) \
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SECTION_FUNCTION_TEMPLATE(sdata_section, in_sdata, SDATA_SECTION_ASM_OP)
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#undef READONLY_DATA_SECTION
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#define READONLY_DATA_SECTION() const_section ()
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@ -325,27 +353,16 @@ const_section () \
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} \
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}
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#define CTORS_SECTION_FUNCTION \
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void \
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ctors_section () \
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#define SECTION_FUNCTION_TEMPLATE(FN, ENUM, OP) \
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void FN () \
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{ \
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if (in_section != in_ctors) \
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if (in_section != ENUM) \
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{ \
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fprintf (asm_out_file, "%s\n", CTORS_SECTION_ASM_OP); \
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in_section = in_ctors; \
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fprintf (asm_out_file, "%s\n", OP); \
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in_section = ENUM; \
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} \
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}
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#define DTORS_SECTION_FUNCTION \
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void \
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dtors_section () \
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{ \
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if (in_section != in_dtors) \
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{ \
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fprintf (asm_out_file, "%s\n", DTORS_SECTION_ASM_OP); \
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in_section = in_dtors; \
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} \
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}
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/* Switch into a generic section.
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This is currently only used to support section attributes.
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@ -399,7 +416,13 @@ dtors_section () \
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|| !DECL_INITIAL (DECL) \
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|| (DECL_INITIAL (DECL) != error_mark_node \
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&& !TREE_CONSTANT (DECL_INITIAL (DECL)))) \
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data_section (); \
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{ \
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int size = int_size_in_bytes (TREE_TYPE (DECL)); \
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if (size >= 0 && size <= g_switch_value) \
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sdata_section (); \
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else \
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data_section (); \
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} \
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else \
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const_section (); \
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} \
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@ -476,11 +499,15 @@ dtors_section () \
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#define STRING_ASM_OP ".string"
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/*
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* We always use gas here, so we don't worry about ECOFF assembler problems.
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*/
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/* GAS is the only Alpha/ELF assembler. */
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#undef TARGET_GAS
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#define TARGET_GAS (1)
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#undef PREFERRED_DEBUGGING_TYPE
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#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
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/* Undo the auto-alignment stuff from alpha.h. ELF has unaligned data
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pseudos natively. */
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#undef UNALIGNED_SHORT_ASM_OP
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#undef UNALIGNED_INT_ASM_OP
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#undef UNALIGNED_DOUBLE_INT_ASM_OP
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