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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-6.8/] [gdb/] [testsuite/] [gdb.asm/] [s390x.inc] - Blame information for rev 157

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Line No. Rev Author Line
1 24 jeremybenn
### entry point code
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        .macro gdbasm_startup
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        # Align the stack pointer to an 8-byte boundary.
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        lghi %r0,-16
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        ngr %r15,%r0
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        # Reserve space for the standard stack frame:
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        # back chain, and space for the callee to save its registers.
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        aghi %r15,-168
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        # Zero this frame's back chain pointer.
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        xc 0(8,%r15),0(%r15)
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        .endm
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### Call a function.
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        .macro gdbasm_call subr
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        brasl %r14, \subr
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        .endm
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### Exit with a zero status.
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        .macro gdbasm_exit0
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        lghi %r2, 0
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        svc 1
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        .endm
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### Standard subroutine prologue.
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        .macro gdbasm_enter
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        # Save all the callee-saves registers.  What the heck.
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        stmg %r6,%r15,48(%r15)
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        # Allocate the stack frame, and write the back chain pointer.
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        # Keep the original SP in %r11.
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        lgr %r11,%r15
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        aghi %r15,-168
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        stg %r11,0(%r15)
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        .endm
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### Standard subroutine epilogue.
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        .macro gdbasm_leave
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        # Restore all our registers.  This also pops the frame, and
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        # restores our return address.
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        lmg %r6,%r15,216(%r15)
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        # Jump to the return address.
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        br %r14
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        .endm
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### Several nops.
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        .macro gdbasm_several_nops
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        lr %r0, %r0
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        lr %r0, %r0
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        lr %r0, %r0
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        lr %r0, %r0
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        .endm
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### Declare an `int' variable.
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        .purgem gdbasm_datavar
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        .macro gdbasm_datavar name value
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        .data
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\name:
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        .long \value
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        .endm

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