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Fixes from Peter Schauer: 

* config/mips/tm-mips.h (REGISTER_CONVERT_TO_TYPE,
	REGISTER_CONVERT_FROM_TYPE): Swap words if target, not host,
	is big-endian and if registers are 32 bits.
	* mips-tdep.c (mips_print_register, mips_extract_return_value,
	mips_store_return_value): Fix floating-point word-order problems on
	little-endian targets introduced by changes of Mar 21.
This commit is contained in:
Mark Alexander 1997-03-24 00:29:12 +00:00
parent a9b9b4071f
commit 87ee36023c
2 changed files with 22 additions and 8 deletions
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10
gdb/ChangeLog
View File

@ -1,3 +1,13 @@
Sun Mar 23 16:19:20 1997 Mark Alexander <marka@cygnus.com>
Fixes from Peter Schauer:
* config/mips/tm-mips.h (REGISTER_CONVERT_TO_TYPE,
REGISTER_CONVERT_FROM_TYPE): Swap words if target, not host,
is big-endian and if registers are 32 bits.
* mips-tdep.c (mips_print_register, mips_extract_return_value,
mips_store_return_value): Fix floating-point word-order problems on
little-endian targets introduced by changes of Mar 21.
Sun Mar 23 15:43:27 1997 Stan Shebs <shebs@andros.cygnus.com> Sun Mar 23 15:43:27 1997 Stan Shebs <shebs@andros.cygnus.com>
* remote.c (target_resume_hook, target_wait_loop_hook): New * remote.c (target_resume_hook, target_wait_loop_hook): New

20
gdb/config/mips/tm-mips.h
View File

@ -265,28 +265,32 @@ extern void mips_do_registers_info PARAMS ((int, int));
? builtin_type_float : builtin_type_int) ? builtin_type_float : builtin_type_int)
#endif #endif
#if HOST_BYTE_ORDER == BIG_ENDIAN
/* All mips targets store doubles in a register pair with the least /* All mips targets store doubles in a register pair with the least
significant register in the lower numbered register. significant register in the lower numbered register.
If the host is big endian, double register values need conversion between If the target is big endian, double register values need conversion
memory and register formats. */ between memory and register formats. */
#define REGISTER_CONVERT_TO_TYPE(n, type, buffer) \ #define REGISTER_CONVERT_TO_TYPE(n, type, buffer) \
do {if ((n) >= FP0_REGNUM && (n) < FP0_REGNUM + 32 && \ do {if (TARGET_BYTE_ORDER == BIG_ENDIAN \
TYPE_CODE(type) == TYPE_CODE_FLT && TYPE_LENGTH(type) == 8) { \ && REGISTER_RAW_SIZE (n) == 4 \
&& (n) >= FP0_REGNUM && (n) < FP0_REGNUM + 32 \
&& TYPE_CODE(type) == TYPE_CODE_FLT \
&& TYPE_LENGTH(type) == 8) { \
char __temp[4]; \ char __temp[4]; \
memcpy (__temp, ((char *)(buffer))+4, 4); \ memcpy (__temp, ((char *)(buffer))+4, 4); \
memcpy (((char *)(buffer))+4, (buffer), 4); \ memcpy (((char *)(buffer))+4, (buffer), 4); \
memcpy (((char *)(buffer)), __temp, 4); }} while (0) memcpy (((char *)(buffer)), __temp, 4); }} while (0)
#define REGISTER_CONVERT_FROM_TYPE(n, type, buffer) \ #define REGISTER_CONVERT_FROM_TYPE(n, type, buffer) \
do {if ((n) >= FP0_REGNUM && (n) < FP0_REGNUM + 32 && \ do {if (TARGET_BYTE_ORDER == BIG_ENDIAN \
TYPE_CODE(type) == TYPE_CODE_FLT && TYPE_LENGTH(type) == 8) { \ && REGISTER_RAW_SIZE (n) == 4 \
&& (n) >= FP0_REGNUM && (n) < FP0_REGNUM + 32 \
&& TYPE_CODE(type) == TYPE_CODE_FLT \
&& TYPE_LENGTH(type) == 8) { \
char __temp[4]; \ char __temp[4]; \
memcpy (__temp, ((char *)(buffer))+4, 4); \ memcpy (__temp, ((char *)(buffer))+4, 4); \
memcpy (((char *)(buffer))+4, (buffer), 4); \ memcpy (((char *)(buffer))+4, (buffer), 4); \
memcpy (((char *)(buffer)), __temp, 4); }} while (0) memcpy (((char *)(buffer)), __temp, 4); }} while (0)
#endif
/* Store the address of the place in which to copy the structure the /* Store the address of the place in which to copy the structure the
subroutine will return. Handled by mips_push_arguments. */ subroutine will return. Handled by mips_push_arguments. */