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