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pa.c (pa_asm_output_aligned_bss, [...]): New functions.

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* pa.c (pa_asm_output_aligned_bss, pa_asm_output_aligned_common,
	pa_asm_output_aligned_local): New functions.
	* pa-protos.h: Add prototypes for pa_asm_output_aligned_bss,
	pa_asm_output_aligned_common and pa_asm_output_aligned_local.
	* pa-pro-end.h (ASM_OUTPUT_ALIGNED_COMMON): Use
	pa_asm_output_aligned_common.
	(ASM_OUTPUT_ALIGNED_LOCAL): Use pa_asm_output_aligned_local.
	* pa.h (ASM_OUTPUT_ALIGNED_BSS): New macro.
	(ASM_OUTPUT_ALIGNED_COMMON): Use pa_asm_output_aligned_common.
	(ASM_OUTPUT_ALIGNED_LOCAL): Use pa_asm_output_aligned_local.
	* pa64-hpux.h (MAX_OFILE_ALIGNMENT): New macro.
	(ASM_OUTPUT_ALIGNED_COMMON): Use pa_asm_output_aligned_common.
	(ASM_OUTPUT_ALIGNED_LOCAL): Use pa_asm_output_aligned_local.
	* som.h (MAX_OFILE_ALIGNMENT): Provide maximum alignment of global
	common data.

From-SVN: r85611
This commit is contained in:
John David Anglin 2004-08-05 20:57:06 +00:00 committed by John David Anglin
parent c34f5b333d
commit d448271569
7 changed files with 153 additions and 51 deletions
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18
gcc/ChangeLog
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@ -1,3 +1,21 @@
2004-08-05 John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
* pa.c (pa_asm_output_aligned_bss, pa_asm_output_aligned_common,
pa_asm_output_aligned_local): New functions.
* pa-protos.h: Add prototypes for pa_asm_output_aligned_bss,
pa_asm_output_aligned_common and pa_asm_output_aligned_local.
* pa-pro-end.h (ASM_OUTPUT_ALIGNED_COMMON): Use
pa_asm_output_aligned_common.
(ASM_OUTPUT_ALIGNED_LOCAL): Use pa_asm_output_aligned_local.
* pa.h (ASM_OUTPUT_ALIGNED_BSS): New macro.
(ASM_OUTPUT_ALIGNED_COMMON): Use pa_asm_output_aligned_common.
(ASM_OUTPUT_ALIGNED_LOCAL): Use pa_asm_output_aligned_local.
* pa64-hpux.h (MAX_OFILE_ALIGNMENT): New macro.
(ASM_OUTPUT_ALIGNED_COMMON): Use pa_asm_output_aligned_common.
(ASM_OUTPUT_ALIGNED_LOCAL): Use pa_asm_output_aligned_local.
* som.h (MAX_OFILE_ALIGNMENT): Provide maximum alignment of global
common data.
2004-08-05 Andrew Pinski <apinski@apple.com>
* objc/objc-act.c (build_objc_string_object): Mark the address

30
gcc/config/pa/pa-pro-end.h
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@ -1,5 +1,5 @@
/* Definitions of target machine for GNU compiler, for PRO.
Copyright (C) 1996, 1997, 2002, 2003 Free Software Foundation, Inc.
Copyright (C) 1996, 1997, 2002, 2003, 2004 Free Software Foundation, Inc.
This file is part of GCC.
@ -52,27 +52,13 @@ Boston, MA 02111-1307, USA. */
#undef STARTFILE_SPEC
#define STARTFILE_SPEC ""
/* The following two macros are identical to the ones in pa.h. We need
to override the macros in elfos.h on the rtems and pro ports. */
/* This says how to output an assembler line to define a global common symbol
with size SIZE (in bytes) and alignment ALIGN (in bits). */
/* We need to override the following two macros defined in elfos.h since
the .comm directive has a different syntax and it can't be used for
local common symbols. */
#undef ASM_OUTPUT_ALIGNED_COMMON
#define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGNED) \
{ bss_section (); \
assemble_name ((FILE), (NAME)); \
fprintf ((FILE), "\t.comm "HOST_WIDE_INT_PRINT_UNSIGNED"\n", \
MAX ((unsigned HOST_WIDE_INT)(SIZE), \
((unsigned HOST_WIDE_INT)(ALIGNED) / BITS_PER_UNIT)));}
/* This says how to output an assembler line to define a local common symbol
with size SIZE (in bytes) and alignment ALIGN (in bits). */
#define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN) \
pa_asm_output_aligned_common (FILE, NAME, SIZE, ALIGN)
#undef ASM_OUTPUT_ALIGNED_LOCAL
#define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGNED) \
{ bss_section (); \
fprintf ((FILE), "\t.align %d\n", ((ALIGNED) / BITS_PER_UNIT)); \
assemble_name ((FILE), (NAME)); \
fprintf ((FILE), "\n\t.block "HOST_WIDE_INT_PRINT_UNSIGNED"\n", \
(unsigned HOST_WIDE_INT)(SIZE));}
#define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \
pa_asm_output_aligned_local (FILE, NAME, SIZE, ALIGN)

11
gcc/config/pa/pa-protos.h
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@ -152,6 +152,7 @@ extern int cmpib_comparison_operator (rtx, enum machine_mode);
#endif
/* Miscellaneous functions in pa.c. */
#ifdef TREE_CODE
extern int reloc_needed (tree);
#ifdef RTX_CODE
@ -165,6 +166,16 @@ extern int function_arg_partial_nregs (CUMULATIVE_ARGS *,
extern bool pa_return_in_memory (tree, tree);
#endif /* TREE_CODE */
extern void pa_asm_output_aligned_bss (FILE *, const char *,
unsigned HOST_WIDE_INT,
unsigned int);
extern void pa_asm_output_aligned_common (FILE *, const char *,
unsigned HOST_WIDE_INT,
unsigned int);
extern void pa_asm_output_aligned_local (FILE *, const char *,
unsigned HOST_WIDE_INT,
unsigned int);
/* Functions in varasm.c used by pa.c. */
extern void readonly_data (void);
extern void one_only_readonly_data_section (void);

73
gcc/config/pa/pa.c
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@ -8169,6 +8169,79 @@ pa_asm_out_destructor (rtx symbol, int priority)
}
#endif
/* This function places uninitialized global data in the bss section.
The ASM_OUTPUT_ALIGNED_BSS macro needs to be defined to call this
function on the SOM port to prevent uninitialized global data from
being placed in the data section. */
void
pa_asm_output_aligned_bss (FILE *stream,
const char *name,
unsigned HOST_WIDE_INT size,
unsigned int align)
{
bss_section ();
fprintf (stream, "\t.align %u\n", align / BITS_PER_UNIT);
#ifdef ASM_OUTPUT_TYPE_DIRECTIVE
ASM_OUTPUT_TYPE_DIRECTIVE (stream, name, "object");
#endif
#ifdef ASM_OUTPUT_SIZE_DIRECTIVE
ASM_OUTPUT_SIZE_DIRECTIVE (stream, name, size);
#endif
fprintf (stream, "\t.align %u\n", align / BITS_PER_UNIT);
ASM_OUTPUT_LABEL (stream, name);
fprintf (stream, "\t.block "HOST_WIDE_INT_PRINT_UNSIGNED"\n", size);
}
/* Both the HP and GNU assemblers under HP-UX provide a .comm directive
that doesn't allow the alignment of global common storage to be directly
specified. The SOM linker aligns common storage based on the rounded
value of the NUM_BYTES parameter in the .comm directive. It's not
possible to use the .align directive as it doesn't affect the alignment
of the label associated with a .comm directive. */
void
pa_asm_output_aligned_common (FILE *stream,
const char *name,
unsigned HOST_WIDE_INT size,
unsigned int align)
{
bss_section ();
assemble_name (stream, name);
fprintf (stream, "\t.comm "HOST_WIDE_INT_PRINT_UNSIGNED"\n",
MAX (size, align / BITS_PER_UNIT));
}
/* We can't use .comm for local common storage as the SOM linker effectively
treats the symbol as universal and uses the same storage for local symbols
with the same name in different object files. The .block directive
reserves an uninitialized block of storage. However, it's not common
storage. Fortunately, GCC never requests common storage with the same
name in any given translation unit. */
void
pa_asm_output_aligned_local (FILE *stream,
const char *name,
unsigned HOST_WIDE_INT size,
unsigned int align)
{
bss_section ();
fprintf (stream, "\t.align %u\n", align / BITS_PER_UNIT);
#ifdef LOCAL_ASM_OP
fprintf (stream, "%s", LOCAL_ASM_OP);
assemble_name (stream, name);
fprintf (stream, "\n");
#endif
ASM_OUTPUT_LABEL (stream, name);
fprintf (stream, "\t.block "HOST_WIDE_INT_PRINT_UNSIGNED"\n", size);
}
/* Returns 1 if the 6 operands specified in OPERANDS are suitable for
use in fmpysub instructions. */
int

29
gcc/config/pa/pa.h
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@ -1902,25 +1902,28 @@ do { \
fprintf (FILE, "\t.blockz "HOST_WIDE_INT_PRINT_UNSIGNED"\n", \
(unsigned HOST_WIDE_INT)(SIZE))
/* This says how to output an assembler line to define an uninitialized
global variable with size SIZE (in bytes) and alignment ALIGN (in bits).
This macro exists to properly support languages like C++ which do not
have common data. */
#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
pa_asm_output_aligned_bss (FILE, NAME, SIZE, ALIGN)
/* This says how to output an assembler line to define a global common symbol
with size SIZE (in bytes) and alignment ALIGN (in bits). */
#define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGNED) \
{ bss_section (); \
assemble_name ((FILE), (NAME)); \
fprintf ((FILE), "\t.comm "HOST_WIDE_INT_PRINT_UNSIGNED"\n", \
MAX ((unsigned HOST_WIDE_INT)(SIZE), \
((unsigned HOST_WIDE_INT)(ALIGNED) / BITS_PER_UNIT)));}
#define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN) \
pa_asm_output_aligned_common (FILE, NAME, SIZE, ALIGN)
/* This says how to output an assembler line to define a local common symbol
with size SIZE (in bytes) and alignment ALIGN (in bits). */
with size SIZE (in bytes) and alignment ALIGN (in bits). This macro
controls how the assembler definitions of uninitialized static variables
are output. */
#define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGNED) \
{ bss_section (); \
fprintf ((FILE), "\t.align %d\n", ((ALIGNED) / BITS_PER_UNIT)); \
assemble_name ((FILE), (NAME)); \
fprintf ((FILE), "\n\t.block "HOST_WIDE_INT_PRINT_UNSIGNED"\n", \
(unsigned HOST_WIDE_INT)(SIZE));}
#define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \
pa_asm_output_aligned_local (FILE, NAME, SIZE, ALIGN)
#define ASM_PN_FORMAT "%s___%lu"

30
gcc/config/pa/pa64-hpux.h
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@ -109,6 +109,17 @@ Boston, MA 02111-1307, USA. */
#define MD_STARTFILE_PREFIX_1 "/opt/langtools/lib/pa20_64/"
#endif
/* This macro specifies the biggest alignment supported by the object
file format of this machine.
The .align directive in the HP assembler allows alignments up to
4096 bytes. However, the maximum alignment of a global common symbol
is 16 bytes using HP ld. For consistency, we use the same limit
with GNU ld. */
#undef MAX_OFILE_ALIGNMENT
#define MAX_OFILE_ALIGNMENT \
(TREE_PUBLIC (decl) && DECL_COMMON (decl) ? 128 : 32768)
/* Due to limitations in the target structure, it isn't currently possible
to dynamically switch between the GNU and HP assemblers. */
#undef TARGET_GAS
@ -137,25 +148,16 @@ Boston, MA 02111-1307, USA. */
#define HP_FINI_ARRAY_SECTION_ASM_OP "\t.section\t.fini"
#define GNU_FINI_ARRAY_SECTION_ASM_OP "\t.section\t.fini_array"
/* We need to override the following two macros defined in elfos.h since
the .comm directive has a different syntax and it can't be used for
local common symbols. */
#undef ASM_OUTPUT_ALIGNED_COMMON
#define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN) \
do { \
bss_section (); \
assemble_name ((FILE), (NAME)); \
fprintf ((FILE), "\t.comm "HOST_WIDE_INT_PRINT_UNSIGNED"\n", \
MAX ((unsigned HOST_WIDE_INT)(SIZE), \
((unsigned HOST_WIDE_INT)(ALIGN) / BITS_PER_UNIT))); \
} while (0)
pa_asm_output_aligned_common (FILE, NAME, SIZE, ALIGN)
#undef ASM_OUTPUT_ALIGNED_LOCAL
#define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \
do { \
bss_section (); \
fprintf ((FILE), "\t.align %d\n", ((ALIGN) / BITS_PER_UNIT)); \
assemble_name ((FILE), (NAME)); \
fprintf ((FILE), "\n\t.block "HOST_WIDE_INT_PRINT_UNSIGNED"\n", \
(unsigned HOST_WIDE_INT)(SIZE)); \
} while (0)
pa_asm_output_aligned_local (FILE, NAME, SIZE, ALIGN)
/* The define in pa.h doesn't work with the alias attribute. The
default is ok with the following define for GLOBAL_ASM_OP. */

13
gcc/config/pa/som.h
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@ -371,8 +371,17 @@ do { \
(*p++) (); \
} while (0)
/* The .align directive in the HP assembler allows up to a 32 alignment. */
#define MAX_OFILE_ALIGNMENT 32768
/* This macro specifies the biggest alignment supported by the object
file format of this machine.
The .align directive in the HP assembler allows alignments up to 4096
bytes. However, the maximum alignment of a global common symbol is 8
bytes for objects smaller than the page size (4096 bytes). For larger
objects, the linker provides an alignment of 32 bytes. */
#define MAX_OFILE_ALIGNMENT \
(TREE_PUBLIC (decl) && DECL_COMMON (decl) \
? (host_integerp (DECL_SIZE_UNIT (decl), 1) >= 4096 ? 256 : 64) \
: 32768)
/* The SOM linker hardcodes paths into binaries. As a result, dotdots
must be removed from library prefixes to prevent binaries from depending