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0a64709eb4
* hppa-tdep.c (hppa_pop_frame): Do not restore the PC space
queue if NO_PC_SPACE_QUEUE_RESTORE is defined.
55 lines
1.7 KiB
C
55 lines
1.7 KiB
C
/* Parameters for execution on an HP PA-RISC machine running OSF1, for GDB.
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Contributed by the Center for Software Science at the
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University of Utah (pa-gdb-bugs@cs.utah.edu). */
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/* For OSF1 (Should be close if not identical to BSD, but I haven't
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tested it yet):
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The signal context structure pointer is always saved at the base
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of the frame + 0x4.
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We get the PC & SP directly from the sigcontext structure itself.
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For other registers we have to dive in a little deeper:
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The hardware save state pointer is at offset 0x10 within the
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signal context structure.
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Within the hardware save state, registers are found in the same order
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as the register numbers in GDB. */
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#define FRAME_SAVED_PC_IN_SIGTRAMP(FRAME, TMP) \
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{ \
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*(TMP) = read_memory_integer ((FRAME)->frame + 0x4, 4); \
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*(TMP) = read_memory_integer (*(TMP) + 0x18, 4); \
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}
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#define FRAME_BASE_BEFORE_SIGTRAMP(FRAME, TMP) \
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{ \
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*(TMP) = read_memory_integer ((FRAME)->frame + 0x4, 4); \
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*(TMP) = read_memory_integer (*(TMP) + 0x8, 4); \
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}
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#define FRAME_FIND_SAVED_REGS_IN_SIGTRAMP(FRAME, FSR) \
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{ \
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int i; \
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CORE_ADDR TMP; \
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TMP = read_memory_integer ((FRAME)->frame + 0x4, 4); \
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TMP = read_memory_integer (TMP + 0x10, 4); \
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for (i = 0; i < NUM_REGS; i++) \
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{ \
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if (i == SP_REGNUM) \
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(FSR)->regs[SP_REGNUM] = read_memory_integer (TMP + SP_REGNUM * 4, 4); \
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else \
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(FSR)->regs[i] = TMP + i * 4; \
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} \
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}
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/* OSF1 needs an extra trap. I assume for the emulator startup (?!?) */
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#define START_INFERIOR_TRAPS_EXPECTED 3
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/* OSF1 does not need the pc space queue restored. */
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#define NO_PC_SPACE_QUEUE_RESTORE
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/* It's mostly just the common stuff. */
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#include "pa/tm-hppa.h"
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