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add back in the old NetBSD changes. Also, add in a PIC GOT

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offset fix from the snapshot.
This commit is contained in:
cgd 1998-04-19 01:05:27 +00:00
parent f502d8c9f4
commit fea06d4c21
3 changed files with 44 additions and 15 deletions
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6
gnu/dist/gcc/config/arm/arm.c vendored
View File

@ -305,12 +305,14 @@ arm_override_options ()
if (flag_pic && ! TARGET_APCS_STACK)
arm_pic_register = 10;
#if 0 /* XXX this warning + -Werror causes lossage with NetBSD. -- cgd */
/* Well, I'm about to have a go, but pic is NOT going to be compatible
with APCS reentrancy, since that requires too much support in the
assembler and linker, and the ARMASM assembler seems to lack some
required directives. */
if (flag_pic)
warning ("Position independent code not supported. Ignored");
#endif
if (TARGET_APCS_FLOAT)
warning ("Passing floating point arguments in fp regs not yet supported");
@ -1294,10 +1296,12 @@ arm_finalize_pic ()
l1 = gen_label_rtx ();
global_offset_table = gen_rtx (SYMBOL_REF, Pmode, "_GLOBAL_OFFSET_TABLE_");
/* The PC contains 'dot'+8, but the label L1 is on the next
instruction, so the offset is only 'dot'+4. */
pic_tmp = gen_rtx (CONST, VOIDmode,
gen_rtx (PLUS, Pmode,
gen_rtx (LABEL_REF, VOIDmode, l1),
GEN_INT (8)));
GEN_INT (4)));
pic_tmp2 = gen_rtx (CONST, VOIDmode,
gen_rtx (PLUS, Pmode,
global_offset_table,

2
gnu/dist/gcc/config/arm/arm.h vendored
View File

@ -2024,7 +2024,7 @@ char *output_mov_long_double_arm_from_fpu (/* struct rtx_def ** */);
char *output_mov_long_double_arm_from_arm (/* struct rtx_def ** */);
char *output_mov_double_fpu_from_arm (/* struct rtx_def ** */);
char *output_mov_double_arm_from_fpu (/* struct rtx_def ** */);
char *output_mov_double (/* struct rtx_def ** */);
char *output_move_double (/* struct rtx_def ** */);
char *output_mov_immediate (/* struct rtx_def ** */);
char *output_add_immediate (/* struct rtx_def ** */);
char *arithmetic_instr (/* struct rtx_def *, int */);

51
gnu/dist/gcc/config/arm/netbsd.h vendored
View File

@ -36,8 +36,12 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
/* ARM6 family default cpu. */
#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm6
/* Default is to use APCS-32 mode. */
#define TARGET_DEFAULT ARM_FLAG_APCS_32
/* Default is to use soft float and APCS-32 mode. */
#if 0 /* XXX soft float doesn't seem to work! */
#define TARGET_DEFAULT (ARM_FLAG_APCS_32 | ARM_FLAG_SOFT_FLOAT)
#else
#define TARGET_DEFAULT (ARM_FLAG_APCS_32)
#endif
#include "arm/aout.h"
@ -46,24 +50,44 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
#include <netbsd.h>
/* Some defines for CPP.
arm32 is the NetBSD port name, so we always define arm32 and __arm32__. */
/* On the ARM `@' introduces a comment, so we must use something else
for .type directives. */
#undef TYPE_OPERAND_FMT
/* XXX our arm assembler seems to really want # for type specs -- cgd */
#define TYPE_OPERAND_FMT "#%s"
/* The NetBSD/arm32 assembler (or, at least the one that I have) doesn't
seem to do the right thing with weak references, which causes libgcc
c++ function lossage. */
#undef ASM_WEAKEN_LABEL
/* Some defines for CPP. arm32 is the NetBSD port name, so we always (only)
define __arm32__ and __NetBSD__, and add __KPRINTF_ATTRIBUTE__ since
this compiler is hacked with the NetBSD kprintf attribute mods. */
#undef CPP_PREDEFINES
#define CPP_PREDEFINES "\
-Dunix -Driscbsd -Darm32 -D__arm32__ -D__NetBSD__ \
-Asystem(unix) -Asystem(NetBSD) -Acpu(arm) -Amachine(arm)"
#define CPP_PREDEFINES "-D__arm32__ -D__NetBSD__ -D__KPRINTF_ATTRIBUTE__"
/* Define _POSIX_SOURCE if necessary. */
#undef CPP_SPEC
#define CPP_SPEC "\
%(cpp_cpu_arch) %(cpp_apcs_pc) %(cpp_float) %(cpp_endian) \
%{posix:-D_POSIX_SOURCE} \
"
#undef SUBTARGET_CPP_SPEC
#define SUBTARGET_CPP_SPEC "%{posix:-D_POSIX_SOURCE}"
/* Because TARGET_DEFAULT sets ARM_FLAG_APCS_32 */
#undef CPP_APCS_PC_DEFAULT_SPEC
#define CPP_APCS_PC_DEFAULT_SPEC "-D__APCS_32__"
#if 0 /* XXX soft float doesn't seem to work! */
/* Because TARGET_DEFAULT sets ARM_FLAG_SOFT_FLOAT */
#undef CPP_FLOAT_DEFAULT_SPEC
#define CPP_FLOAT_DEFAULT_SPEC "-D__SOFTFP__"
#endif
/* Pass -X to the linker so that it will strip symbols starting with 'L' */
#undef LINK_SPEC
#define LINK_SPEC "\
-X %{!nostdlib:%{!r*:%{!e*:-e start}}} -dc -dp %{R*} \
%{static:-Bstatic} %{assert*} \
"
#undef SIZE_TYPE
#define SIZE_TYPE "unsigned int"
@ -133,5 +157,6 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
/* Until they use ELF or something that handles dwarf2 unwinds
and initialization stuff better. */
#define DWARF2_UNWIND_INFO 0
#undef DWARF2_UNWIND_INFO
/* #define DWARF2_UNWIND_INFO 0 */