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riscv-gcc-1
Commit 1c7e67ca by Michael Meissner
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-mlarge-align support; block profiling support 

From-SVN: r5208
parent 0a7dd6e7
Showing with 159 additions and 1 deletions
gcc/config/i386/osfrose.h
......@@ -38,6 +38,7 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
#define MASK_ELF 0x10000000 /* ELF not rose */
#define MASK_NO_IDENT 0x08000000 /* suppress .ident */
#define MASK_NO_UNDERSCORES 0x04000000 /* suppress leading _ */
#define MASK_LARGE_ALIGN 0x02000000 /* align to >word boundaries */
#define TARGET_HALF_PIC (target_flags & MASK_HALF_PIC)
#define TARGET_DEBUG (target_flags & MASK_HALF_PIC_DEBUG)
......@@ -46,6 +47,7 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
#define TARGET_ROSE ((target_flags & MASK_ELF) == 0)
#define TARGET_IDENT ((target_flags & MASK_NO_IDENT) == 0)
#define TARGET_UNDERSCORES ((target_flags & MASK_NO_UNDERSCORES) == 0)
#define TARGET_LARGE_ALIGN (target_flags & MASK_LARGE_ALIGN)
#undef SUBTARGET_SWITCHES
#define SUBTARGET_SWITCHES \
......@@ -58,7 +60,9 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
{ "ident", -MASK_NO_IDENT}, \
{ "no-ident", MASK_NO_IDENT}, \
{ "underscores", -MASK_NO_UNDERSCORES}, \
{ "no-underscores", MASK_NO_UNDERSCORES},
{ "no-underscores", MASK_NO_UNDERSCORES}, \
{ "no-large-align",-MASK_LARGE_ALIGN}, \
{ "large-align", MASK_LARGE_ALIGN},
/* OSF/rose uses stabs, not dwarf. */
#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
......@@ -173,6 +177,92 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
#undef FUNCTION_PROFILER
#define FUNCTION_PROFILER(FILE, LABELNO) fprintf (FILE, "\tcall _mcount\n")
/* A C statement or compound statement to output to FILE some
assembler code to initialize basic-block profiling for the current
object module. This code should call the subroutine
`__bb_init_func' once per object module, passing it as its sole
argument the address of a block allocated in the object module.
The name of the block is a local symbol made with this statement:
ASM_GENERATE_INTERNAL_LABEL (BUFFER, "LPBX", 0);
Of course, since you are writing the definition of
`ASM_GENERATE_INTERNAL_LABEL' as well as that of this macro, you
can take a short cut in the definition of this macro and use the
name that you know will result.
The first word of this block is a flag which will be nonzero if the
object module has already been initialized. So test this word
first, and do not call `__bb_init_func' if the flag is nonzero. */
#undef FUNCTION_BLOCK_PROFILER
#define FUNCTION_BLOCK_PROFILER(STREAM, LABELNO) \
do \
{ \
if (!flag_pic) \
{ \
fprintf (STREAM, "\tcmpl $0,%sPBX0\n", LPREFIX); \
fprintf (STREAM, "\tjne 0f\n"); \
fprintf (STREAM, "\tpushl $%sPBX0\n", LPREFIX); \
fprintf (STREAM, "\tcall %s__bb_init_func\n", \
(TARGET_UNDERSCORES) ? "_" : ""); \
fprintf (STREAM, "0:\n"); \
} \
else \
{ \
fprintf (STREAM, "\tpushl %eax\n"); \
fprintf (STREAM, "\tmovl %sPBX0@GOT(%ebx),%eax\n"); \
fprintf (STREAM, "\tcmpl $0,(%eax)\n"); \
fprintf (STREAM, "\tjne 0f\n"); \
fprintf (STREAM, "\tpushl %eax\n"); \
fprintf (STREAM, "\tcall %s__bb_init_func@PLT\n", \
(TARGET_UNDERSCORES) ? "_" : ""); \
fprintf (STREAM, "0:\n"); \
fprintf (STREAM, "\tpopl %eax\n"); \
} \
} \
while (0)
/* A C statement or compound statement to increment the count
associated with the basic block number BLOCKNO. Basic blocks are
numbered separately from zero within each compilation. The count
associated with block number BLOCKNO is at index BLOCKNO in a
vector of words; the name of this array is a local symbol made
with this statement:
ASM_GENERATE_INTERNAL_LABEL (BUFFER, "LPBX", 2);
Of course, since you are writing the definition of
`ASM_GENERATE_INTERNAL_LABEL' as well as that of this macro, you
can take a short cut in the definition of this macro and use the
name that you know will result. */
#undef BLOCK_PROFILER
#define BLOCK_PROFILER(STREAM, BLOCKNO) \
do \
{ \
if (!flag_pic) \
fprintf (STREAM, "\tincl %sPBX2+%d\n", LPREFIX, (BLOCKNO)*4); \
else \
{ \
fprintf (STREAM, "\tpushl %eax\n"); \
fprintf (STREAM, "\tmovl %sPBX2@GOT(%ebx),%eax\n", LPREFIX); \
fprintf (STREAM, "\tincl %d(%eax)\n", (BLOCKNO)*4); \
fprintf (STREAM, "\tpopl %eax\n"); \
} \
} \
while (0)
/* A C function or functions which are needed in the library to
support block profiling. When support goes into libc, undo
the #if 0. */
#if 0
#undef BLOCK_PROFILING_CODE
#define BLOCK_PROFILING_CODE
#endif
/* Prefix for internally generated assembler labels. If we aren't using
underscores, we are using prefix `.'s to identify labels that should
be ignored, as in `i386/gas.h' --karl@cs.umb.edu */
......@@ -203,6 +293,39 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
#define ASM_OUTPUT_LABELREF(FILE,NAME) \
fprintf (FILE, "%s%s", (TARGET_UNDERSCORES) ? "_" : "", NAME)
/* A C expression to output text to align the location counter in the
way that is desirable at a point in the code that is reached only
by jumping.
This macro need not be defined if you don't want any special
alignment to be done at such a time. Most machine descriptions do
not currently define the macro. */
#undef ASM_OUTPUT_ALIGN_CODE
#define ASM_OUTPUT_ALIGN_CODE(STREAM) \
fprintf (STREAM, "\t.align\t%d\n", \
(TARGET_486 && TARGET_LARGE_ALIGN) ? 4 : 2)
/* A C expression to output text to align the location counter in the
way that is desirable at the beginning of a loop.
This macro need not be defined if you don't want any special
alignment to be done at such a time. Most machine descriptions do
not currently define the macro. */
#undef ASM_OUTPUT_LOOP_ALIGN
#define ASM_OUTPUT_LOOP_ALIGN(STREAM) \
fprintf (STREAM, "\t.align\t2\n")
/* A C statement to output to the stdio stream STREAM an assembler
command to advance the location counter to a multiple of 2 to the
POWER bytes. POWER will be a C expression of type `int'. */
#undef ASM_OUTPUT_ALIGN
#define ASM_OUTPUT_ALIGN(STREAM, POWER) \
fprintf (STREAM, "\t.align\t%d\n", \
(!TARGET_LARGE_ALIGN && (POWER) > 2) ? 2 : (POWER))
/* 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
......@@ -347,6 +470,41 @@ do \
while (0)
/* On most machines, read-only variables, constants, and jump tables
are placed in the text section. If this is not the case on your
machine, this macro should be defined to be the name of a function
(either `data_section' or a function defined in `EXTRA_SECTIONS')
that switches to the section to be used for read-only items.
If these items should be placed in the text section, this macro
should not be defined. */
#if 0
#undef READONLY_DATA_SECTION
#define READONLY_DATA_SECTION() \
do \
{ \
if (TARGET_ELF) \
{ \
if (in_section != in_rodata) \
{ \
fprintf (asm_out_file, "\t.section \"rodata\"\n"); \
in_section = in_rodata; \
} \
} \
else \
text_section (); \
} \
while (0)
#endif
/* A list of names for sections other than the standard two, which are
`in_text' and `in_data'. You need not define this macro on a
system with no other sections (that GCC needs to use). */
#undef EXTRA_SECTIONS
#define EXTRA_SECTIONS in_rodata, in_data1
/* Given a decl node or constant node, choose the section to output it in
and select that section. */
......
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