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riscv-gcc-1
Commit c623ad33 by Michael Meissner
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*** empty log message *** 

From-SVN: r936
parent 130659a4
Showing with 142 additions and 27 deletions
gcc/config/i386/osfrose.h
......@@ -18,6 +18,7 @@ You should have received a copy of the GNU General Public License
along with GNU CC; see the file COPYING. If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "halfpic.h"
#include "i386gas.h"
#define OSF_OS
......@@ -29,6 +30,16 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
#define abort fancy_abort
#endif
#define MASK_HALF_PIC 0x00000100 /* Mask for half-pic code */
#define TARGET_HALF_PIC (target_flags & MASK_HALF_PIC)
#ifdef SUBTARGET_SWITCHES
#undef SUBTARGET_SWITCHES
#endif
#define SUBTARGET_SWITCHES \
{ "half-pic", MASK_HALF_PIC}, \
{ "no-half-pic", -MASK_HALF_PIC},
/* Prefix that appears before all global/static identifiers, except for
temporary labels. */
......@@ -59,7 +70,11 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
#ifdef CC1_SPEC
#undef CC1_SPEC
#endif
#define CC1_SPEC ""
#define CC1_SPEC \
"%{pic-none: -mno-half-pic} \
%{pic-lib: -mhalf-pic} \
%{pic-extern: -mhalf-pic} \
%{pic-calls: -mhalf-pic}"
#ifdef ASM_SPEC
#undef ASM_SPEC
......@@ -70,18 +85,14 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
#undef LINK_SPEC
#endif
#define LINK_SPEC "%{v*: -v} \
%{pic-none: -noshrlib} %{noshrlib} \
%{!pic-none: -warn_nopic} \
%{nostdlib} %{glue}"
%{!noshrlib: %{pic-none: -noshrlib} %{!pic-none: -warn_nopic}} \
%{nostdlib} %{noshrlib} %{glue}"
#ifdef LIB_SPEC
#undef LIB_SPEC
#endif
/* For now, force static libraries instead of shared, but do so that
does not use -noshrlib, since the old linker does not provide it. */
#define LIB_SPEC "%{!pic-none: %{!pic-lib: -L/usr/ccs/lib }} -lc"
#define LIB_SPEC "-lc"
#ifdef LIBG_SPEC
#undef LIBG_SPEC
......@@ -116,6 +127,123 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
#undef FUNCTION_PROFILER
#define FUNCTION_PROFILER(FILE, LABELNO) fprintf (FILE, "\tcall _mcount\n")
/* Some machines may desire to change what optimizations are
performed for various optimization levels. This macro, if
defined, is executed once just after the optimization level is
determined and before the remainder of the command options have
been parsed. Values set in this macro are used as the default
values for the other command line options.
LEVEL is the optimization level specified; 2 if -O2 is
specified, 1 if -O is specified, and 0 if neither is specified. */
#define OPTIMIZATION_OPTIONS(LEVEL) \
{ \
flag_gnu_linker = FALSE; \
\
if (LEVEL) \
{ \
flag_omit_frame_pointer = TRUE; \
flag_thread_jumps = TRUE; \
} \
\
if (LEVEL >= 2) \
{ \
flag_strength_reduce = TRUE; \
flag_cse_follow_jumps = TRUE; \
flag_expensive_optimizations = TRUE; \
flag_rerun_cse_after_loop = TRUE; \
} \
\
if (LEVEL >= 3) \
{ \
flag_inline_functions = TRUE; \
} \
}
/* A C expression that is 1 if the RTX X is a constant which is a
valid address. On most machines, this can be defined as
`CONSTANT_P (X)', but a few machines are more restrictive in
which constant addresses are supported.
`CONSTANT_P' accepts integer-values expressions whose values are
not explicitly known, such as `symbol_ref', `label_ref', and
`high' expressions and `const' arithmetic expressions, in
addition to `const_int' and `const_double' expressions. */
#ifdef CONSTANT_ADDRESS_P
#undef CONSTANT_ADDRESS_P
#endif
#define CONSTANT_ADDRESS_P(X) \
(CONSTANT_P (X) && (!HALF_PIC_P () || !HALF_PIC_ADDRESS_P (X)))
/* Define this macro if references to a symbol must be treated
differently depending on something about the variable or
function named by the symbol (such as what section it is in).
The macro definition, if any, is executed immediately after the
rtl for DECL has been created and stored in `DECL_RTL (DECL)'.
The value of the rtl will be a `mem' whose address is a
`symbol_ref'.
The usual thing for this macro to do is to a flag in the
`symbol_ref' (such as `SYMBOL_REF_FLAG') or to store a modified
name string in the `symbol_ref' (if one bit is not enough
information).
The best way to modify the name string is by adding text to the
beginning, with suitable punctuation to prevent any ambiguity.
Allocate the new name in `saveable_obstack'. You will have to
modify `ASM_OUTPUT_LABELREF' to remove and decode the added text
and output the name accordingly.
You can also check the information stored in the `symbol_ref' in
the definition of `GO_IF_LEGITIMATE_ADDRESS' or
`PRINT_OPERAND_ADDRESS'. */
#ifdef ENCODE_SECTION_INFO
#undef ENCODE_SECTION_INFO
#endif
#define ENCODE_SECTION_INFO(DECL) \
do \
{ \
if (HALF_PIC_P ()) \
HALF_PIC_ENCODE (DECL); \
} \
while (0)
/* A C statement (sans semicolon) to output to the stdio stream
STREAM any text necessary for declaring the name NAME of an
initialized variable which is being defined. This macro must
output the label definition (perhaps using `ASM_OUTPUT_LABEL').
The argument DECL is the `VAR_DECL' tree node representing the
variable.
If this macro is not defined, then the variable name is defined
in the usual manner as a label (by means of `ASM_OUTPUT_LABEL'). */
#ifdef ASM_DECLARE_OBJECT_NAME
#undef ASM_DECLARE_OBJECT_NAME
#endif
#define ASM_DECLARE_OBJECT_NAME(STREAM, NAME, DECL) \
do \
{ \
ASM_OUTPUT_LABEL(STREAM,NAME); \
HALF_PIC_DECLARE (NAME); \
} \
while (0)
/* This is how to declare a function name. */
#define ASM_DECLARE_FUNCTION_NAME(STREAM,NAME,DECL) \
do \
{ \
ASM_OUTPUT_LABEL(STREAM,NAME); \
HALF_PIC_DECLARE (NAME); \
} \
while (0)
/* Tell collect that the object format is OSF/rose. */
#define OBJECT_FORMAT_ROSE
......@@ -128,6 +256,11 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
to do the search */
#define LINK_LIBGCC_SPECIAL
/* A C statement to output assembler commands which will identify the object
file as having been compile with GNU CC. We don't need or want this for
OSF1. GDB doesn't need it and kdb doesn't like it */
#define ASM_IDENTIFY_GCC(FILE)
/* This is how to output an assembler line defining a `double' constant.
Use "word" pseudos to avoid printing NaNs, infinity, etc. */
......@@ -156,27 +289,9 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
fprintf (STREAM, "\t.long\t0x%08lx\t\t# %.12g\n", u2.l, u2.f); \
}
/* Generate calls to memcpy, etc., not bcopy, etc. */
/* Generate calls to memcpy, etc., not bcopy, etc. */
#define TARGET_MEM_FUNCTIONS
/* A C statement to output assembler commands which will identify
the object file as having been compiled with GNU CC (or another
GNU compiler).
If you don't define this macro, the string `gcc2_compiled.:' is
output. This string is calculated to define a symbol which, on
BSD systems, will never be defined for any other reason. GDB
checks for the presence of this symbol when reading the symbol
table of an executable.
On non-BSD systems, you must arrange communication with GDB in
some other fashion. If GDB is not used on your system, you can
define this macro with an empty body.
On OSF/1, gcc2_compiled. confuses the kernel debugger, so don't
put it out. */
#define ASM_IDENTIFY_GCC(STREAM)
/* Defines to be able to build libgcc.a with GCC. */
......
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