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* config/tc-i386.h (md_end): Define.

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(i386_elf_emit_arch_note): Declare.
	(CpuUnknown): Delete.
	* config/tc-i386.c (default_arch): Constify.
	(smallest_imm_type): Remove CpuUnknown test.
	(md_assemble): Don't bother checking cpu_arch_flags non-zero.
	(i386_elf_emit_arch_note): New function.
This commit is contained in:
Alan Modra 2001-11-15 13:19:46 +00:00
parent 0d3afcfcaa
commit a847613f74
3 changed files with 65 additions and 15 deletions
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8
gas/ChangeLog
View File

@ -1,5 +1,13 @@
2001-11-15 Alan Modra <amodra@bigpond.net.au>
* config/tc-i386.h (md_end): Define.
(i386_elf_emit_arch_note): Declare.
(CpuUnknown): Delete.
* config/tc-i386.c (default_arch): Constify.
(smallest_imm_type): Remove CpuUnknown test.
(md_assemble): Don't bother checking cpu_arch_flags non-zero.
(i386_elf_emit_arch_note): New function.
* po/POTFILES.in: Regenerate.
2001-11-15 Thiemo Seufer <seufer@csv.ica.uni-stuttgart.de>

66
gas/config/tc-i386.c
View File

@ -77,7 +77,7 @@ static bfd_reloc_code_real_type reloc
#ifndef DEFAULT_ARCH
#define DEFAULT_ARCH "i386"
#endif
static char *default_arch = DEFAULT_ARCH;
static const char *default_arch = DEFAULT_ARCH;
/* 'md_assemble ()' gathers together information and puts it into a
i386_insn. */
@ -539,8 +539,7 @@ static int
smallest_imm_type (num)
offsetT num;
{
if (cpu_arch_flags != (Cpu086 | Cpu186 | Cpu286 | Cpu386 | Cpu486 | CpuNo64)
&& !(cpu_arch_flags & (CpuUnknown)))
if (cpu_arch_flags != (Cpu086 | Cpu186 | Cpu286 | Cpu386 | Cpu486 | CpuNo64))
{
/* This code is disabled on the 486 because all the Imm1 forms
in the opcode table are slower on the i486. They're the
@ -1393,18 +1392,15 @@ md_assemble (line)
}
/* Check if instruction is supported on specified architecture. */
if (cpu_arch_flags != 0)
if ((current_templates->start->cpu_flags & ~(Cpu64 | CpuNo64))
& ~(cpu_arch_flags & ~(Cpu64 | CpuNo64)))
{
if ((current_templates->start->cpu_flags & ~(Cpu64 | CpuNo64))
& ~(cpu_arch_flags & ~(Cpu64 | CpuNo64)))
{
as_warn (_("`%s' is not supported on `%s'"),
current_templates->start->name, cpu_arch_name);
}
else if ((Cpu386 & ~cpu_arch_flags) && (flag_code != CODE_16BIT))
{
as_warn (_("use .code16 to ensure correct addressing mode"));
}
as_warn (_("`%s' is not supported on `%s'"),
current_templates->start->name, cpu_arch_name);
}
else if ((Cpu386 & ~cpu_arch_flags) && (flag_code != CODE_16BIT))
{
as_warn (_("use .code16 to ensure correct addressing mode"));
}
/* Check for rep/repne without a string instruction. */
@ -4661,6 +4657,48 @@ i386_target_format ()
}
#endif /* OBJ_MAYBE_ more than one */
#if (defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF))
void i386_elf_emit_arch_note ()
{
if (OUTPUT_FLAVOR == bfd_target_elf_flavour
&& cpu_arch_name != NULL)
{
char *p;
asection *seg = now_seg;
subsegT subseg = now_subseg;
Elf_Internal_Note i_note;
Elf_External_Note e_note;
asection *note_secp;
int len;
/* Create the .note section. */
note_secp = subseg_new (".note", 0);
bfd_set_section_flags (stdoutput,
note_secp,
SEC_HAS_CONTENTS | SEC_READONLY);
/* Process the arch string. */
len = strlen (cpu_arch_name);
i_note.namesz = len + 1;
i_note.descsz = 0;
i_note.type = NT_ARCH;
p = frag_more (sizeof (e_note.namesz));
md_number_to_chars (p, (valueT) i_note.namesz, sizeof (e_note.namesz));
p = frag_more (sizeof (e_note.descsz));
md_number_to_chars (p, (valueT) i_note.descsz, sizeof (e_note.descsz));
p = frag_more (sizeof (e_note.type));
md_number_to_chars (p, (valueT) i_note.type, sizeof (e_note.type));
p = frag_more (len + 1);
strcpy (p, cpu_arch_name);
frag_align (2, 0, 0);
subseg_set (seg, subseg);
}
}
#endif
#endif /* BFD_ASSEMBLER */
symbolS *

6
gas/config/tc-i386.h
View File

@ -111,6 +111,11 @@ extern const char *i386_target_format PARAMS ((void));
#endif
#endif
#if (defined (OBJ_MAYBE_ELF) || defined (OBJ_ELF))
#define md_end i386_elf_emit_arch_note
extern void i386_elf_emit_arch_note PARAMS ((void));
#endif
#else /* ! BFD_ASSEMBLER */
/* COFF STUFF */
@ -293,7 +298,6 @@ typedef struct
#define CpuSSE 0x1000 /* Streaming SIMD extensions required */
#define CpuSSE2 0x2000 /* Streaming SIMD extensions 2 required */
#define Cpu3dnow 0x4000 /* 3dnow! support required */
#define CpuUnknown 0x8000 /* The CPU is unknown, be on the safe side. */
/* These flags are set by gas depending on the flag_code. */
#define Cpu64 0x4000000 /* 64bit support required */