692
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# HG changeset patch
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# Parent 5f1384375f10a5f0ee7c8288adef9593822e4e68
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# User Ulrich Weigand <uweigand@de.ibm.com>
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PPC64 LE support for XPCOM
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diff --git a/xpcom/reflect/xptcall/src/md/unix/Makefile.in b/xpcom/reflect/xptcall/src/md/unix/Makefile.in
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--- a/xpcom/reflect/xptcall/src/md/unix/Makefile.in
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+++ b/xpcom/reflect/xptcall/src/md/unix/Makefile.in
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@@ -161,17 +161,17 @@ endif
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ifneq (,$(filter Linuxpowerpc FreeBSDpowerpc,$(OS_ARCH)$(OS_TEST)))
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ASFILES := xptcinvoke_asm_ppc_linux.s xptcstubs_asm_ppc_linux.s
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AS := $(CC) -c -x assembler-with-cpp
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endif
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#
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# Linux/PPC64
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#
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-ifneq (,$(filter Linuxpowerpc64 FreeBSDpowerpc64,$(OS_ARCH)$(OS_TEST)))
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+ifneq (,$(filter Linuxpowerpc64 Linuxpowerpc64le FreeBSDpowerpc64,$(OS_ARCH)$(OS_TEST)))
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ASFILES := xptcinvoke_asm_ppc64_linux.s xptcstubs_asm_ppc64_linux.s
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AS := $(CC) -c -x assembler-with-cpp
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endif
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#
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# NetBSD/PPC
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#
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ifneq (,$(filter NetBSDmacppc NetBSDbebox NetBSDofppc NetBSDprep NetBSDamigappc,$(OS_ARCH)$(OS_TEST)))
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diff --git a/xpcom/reflect/xptcall/src/md/unix/moz.build b/xpcom/reflect/xptcall/src/md/unix/moz.build
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--- a/xpcom/reflect/xptcall/src/md/unix/moz.build
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+++ b/xpcom/reflect/xptcall/src/md/unix/moz.build
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@@ -186,16 +186,23 @@ if CONFIG['OS_TEST'] == 'powerpc':
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if CONFIG['OS_TEST'] == 'powerpc64':
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if CONFIG['OS_ARCH'] in ('Linux', 'FreeBSD'):
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SOURCES += [
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'xptcinvoke_ppc64_linux.cpp',
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'xptcstubs_ppc64_linux.cpp',
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]
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+if CONFIG['OS_TEST'] == 'powerpc64le':
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+ if CONFIG['OS_ARCH'] == 'Linux':
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+ CPP_SOURCES += [
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+ 'xptcinvoke_ppc64_linux.cpp',
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+ 'xptcstubs_ppc64_linux.cpp',
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+ ]
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+
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if CONFIG['OS_TEST'] in ('macppc', 'bebox', 'ofppc', 'prep', 'amigappc'):
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if CONFIG['OS_ARCH'] == 'NetBSD':
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SOURCES += [
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'xptcinvoke_ppc_netbsd.cpp',
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'xptcstubs_ppc_netbsd.cpp',
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]
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if CONFIG['OS_ARCH'] == 'OpenBSD' and CONFIG['OS_TEST'] == 'powerpc':
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diff --git a/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_asm_ppc64_linux.s b/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_asm_ppc64_linux.s
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--- a/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_asm_ppc64_linux.s
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+++ b/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_asm_ppc64_linux.s
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@@ -12,33 +12,51 @@
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.set f0,0; .set f1,1; .set f2,2; .set f3,3; .set f4,4
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.set f5,5; .set f6,6; .set f7,7; .set f8,8; .set f9,9
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.set f10,10; .set f11,11; .set f12,12; .set f13,13; .set f14,14
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.set f15,15; .set f16,16; .set f17,17; .set f18,18; .set f19,19
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.set f20,20; .set f21,21; .set f22,22; .set f23,23; .set f24,24
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.set f25,25; .set f26,26; .set f27,27; .set f28,28; .set f29,29
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.set f30,30; .set f31,31
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+#if _CALL_ELF == 2
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+#define STACK_TOC 28
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+#define STACK_PARAMS 96
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+#else
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+#define STACK_TOC 40
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+#define STACK_PARAMS 112
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+#endif
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#
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# NS_InvokeByIndex(nsISupports* that, uint32_t methodIndex,
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# uint32_t paramCount, nsXPTCVariant* params)
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#
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+#if _CALL_ELF == 2
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+ .section ".text"
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+ .type NS_InvokeByIndex,@function
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+ .globl NS_InvokeByIndex
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+ .align 2
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+NS_InvokeByIndex:
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+0: addis 2,12,(.TOC.-0b)@ha
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+ addi 2,2,(.TOC.-0b)@l
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+ .localentry NS_InvokeByIndex,.-NS_InvokeByIndex
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+#else
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.section ".toc","aw"
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.section ".text"
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.align 2
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.globl NS_InvokeByIndex
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.section ".opd","aw"
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.align 3
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NS_InvokeByIndex:
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.quad .NS_InvokeByIndex,.TOC.@tocbase
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.previous
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.type NS_InvokeByIndex,@function
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.NS_InvokeByIndex:
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+#endif
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mflr 0
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std 0,16(r1)
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std r29,-24(r1)
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std r30,-16(r1)
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std r31,-8(r1)
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mr r29,r3 # Save 'that' in r29
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@@ -51,51 +69,55 @@ NS_InvokeByIndex:
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# that the stack remains 16-byte aligned.
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#
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# | ..128-byte stack frame.. | | 7 GP | 13 FP | 3 NV |
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# | |(params)........| regs | regs | regs |
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# (r1)...........(+112)....(+128)
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# (-23*8).(-16*8).(-3*8)..(r31)
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# +stack frame, -unused stack params, +regs storage, +1 for alignment
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- addi r7,r5,((112/8)-7+7+13+3+1)
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+ addi r7,r5,((STACK_PARAMS/8)-7+7+13+3+1)
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rldicr r7,r7,3,59 # multiply by 8 and mask with ~15
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neg r7,r7
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stdux r1,r1,r7
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# Call invoke_copy_to_stack(uint64_t* gpregs, double* fpregs,
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# uint32_t paramCount, nsXPTCVariant* s,
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# uint64_t* d))
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# r5, r6 are passed through intact (paramCount, params)
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# r7 (d) has to be r1+112 -- where parameters are passed on the stack.
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# r3, r4 are above that, easier to address from r31 than from r1
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subi r3,r31,(23*8) # r3 --> GPRS
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subi r4,r31,(16*8) # r4 --> FPRS
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- addi r7,r1,112 # r7 --> params
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+ addi r7,r1,STACK_PARAMS # r7 --> params
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bl invoke_copy_to_stack
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nop
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# Set up to invoke function
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ld r9,0(r29) # vtable (r29 is 'that')
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mr r3,r29 # self is first arg, obviously
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sldi r30,r30,3 # Find function descriptor
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add r9,r9,r30
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- ld r9,0(r9)
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+ ld r12,0(r9)
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- ld r0,0(r9) # Actual address from fd.
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- std r2,40(r1) # Save r2 (TOC pointer)
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+ std r2,STACK_TOC(r1) # Save r2 (TOC pointer)
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+#if _CALL_ELF == 2
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+ mtctr r12
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+#else
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+ ld r0,0(r12) # Actual address from fd.
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mtctr 0
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- ld r11,16(r9) # Environment pointer from fd.
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- ld r2,8(r9) # TOC pointer from fd.
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+ ld r11,16(r12) # Environment pointer from fd.
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+ ld r2,8(r12) # TOC pointer from fd.
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+#endif
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# Load FP and GP registers as required
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ld r4, -(23*8)(r31)
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ld r5, -(22*8)(r31)
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ld r6, -(21*8)(r31)
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ld r7, -(20*8)(r31)
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ld r8, -(19*8)(r31)
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ld r9, -(18*8)(r31)
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@@ -112,21 +134,25 @@ NS_InvokeByIndex:
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lfd f9, -(8*8)(r31)
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lfd f10, -(7*8)(r31)
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lfd f11, -(6*8)(r31)
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lfd f12, -(5*8)(r31)
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lfd f13, -(4*8)(r31)
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bctrl # Do it
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- ld r2,40(r1) # Load our own TOC pointer
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+ ld r2,STACK_TOC(r1) # Load our own TOC pointer
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ld r1,0(r1) # Revert stack frame
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ld 0,16(r1) # Reload lr
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ld 29,-24(r1) # Restore NVGPRS
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ld 30,-16(r1)
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ld 31,-8(r1)
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mtlr 0
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blr
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+#if _CALL_ELF == 2
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+ .size NS_InvokeByIndex,.-NS_InvokeByIndex
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+#else
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.size NS_InvokeByIndex,.-.NS_InvokeByIndex
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+#endif
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# Magic indicating no need for an executable stack
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.section .note.GNU-stack, "", @progbits ; .previous
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diff --git a/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_ppc64_linux.cpp b/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_ppc64_linux.cpp
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--- a/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_ppc64_linux.cpp
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+++ b/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_ppc64_linux.cpp
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@@ -69,17 +69,19 @@ invoke_copy_to_stack(uint64_t* gpregs,
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else
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*(double *)d = s->val.d;
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}
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else if (!s->IsPtrData() && s->type == nsXPTType::T_FLOAT) {
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if (i < FPR_COUNT) {
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fpregs[i] = s->val.f; // if passed in registers, floats are promoted to doubles
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} else {
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float *p = (float *)d;
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+#ifndef __LITTLE_ENDIAN__
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p++;
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+#endif
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*p = s->val.f;
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}
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}
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else {
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if (i < GPR_COUNT)
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gpregs[i] = tempu64;
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else
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*d = tempu64;
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diff --git a/xpcom/reflect/xptcall/src/md/unix/xptcstubs_asm_ppc64_linux.s b/xpcom/reflect/xptcall/src/md/unix/xptcstubs_asm_ppc64_linux.s
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--- a/xpcom/reflect/xptcall/src/md/unix/xptcstubs_asm_ppc64_linux.s
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+++ b/xpcom/reflect/xptcall/src/md/unix/xptcstubs_asm_ppc64_linux.s
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@@ -12,28 +12,50 @@
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.set f0,0; .set f1,1; .set f2,2; .set f3,3; .set f4,4
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.set f5,5; .set f6,6; .set f7,7; .set f8,8; .set f9,9
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.set f10,10; .set f11,11; .set f12,12; .set f13,13; .set f14,14
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.set f15,15; .set f16,16; .set f17,17; .set f18,18; .set f19,19
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.set f20,20; .set f21,21; .set f22,22; .set f23,23; .set f24,24
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.set f25,25; .set f26,26; .set f27,27; .set f28,28; .set f29,29
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.set f30,30; .set f31,31
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234 |
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+#if _CALL_ELF == 2
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+#define STACK_PARAMS 96
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+#else
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+#define STACK_PARAMS 112
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+#endif
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+
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+#if _CALL_ELF == 2
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+ .section ".text"
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+ .type SharedStub,@function
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+ .globl SharedStub
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+ # Make the symbol hidden so that the branch from the stub does
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+ # not go via a PLT. This is not only better for performance,
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+ # but may be necessary to avoid linker errors since there is
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+ # no place to restore the TOC register in a sibling call.
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+ .hidden SharedStub
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+ .align 2
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+SharedStub:
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+0: addis 2,12,(.TOC.-0b)@ha
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+ addi 2,2,(.TOC.-0b)@l
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+ .localentry SharedStub,.-SharedStub
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+#else
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.section ".text"
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257 |
.align 2
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258 |
.globl SharedStub
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259 |
.section ".opd","aw"
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260 |
.align 3
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261 |
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262 |
SharedStub:
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.quad .SharedStub,.TOC.@tocbase
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264 |
.previous
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.type SharedStub,@function
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266 |
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267 |
.SharedStub:
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268 |
+#endif
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269 |
mflr r0
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270 |
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271 |
std r4, -56(r1) # Save all GPRS
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272 |
std r5, -48(r1)
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273 |
std r6, -40(r1)
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274 |
std r7, -32(r1)
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275 |
std r8, -24(r1)
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276 |
std r9, -16(r1)
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277 |
@@ -50,17 +72,17 @@ SharedStub:
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278 |
stfd f5, -128(r1)
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279 |
stfd f4, -136(r1)
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280 |
stfd f3, -144(r1)
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281 |
stfd f2, -152(r1)
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282 |
stfd f1, -160(r1)
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283 |
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284 |
subi r6,r1,56 # r6 --> gprData
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285 |
subi r7,r1,160 # r7 --> fprData
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286 |
- addi r5,r1,112 # r5 --> extra stack args
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287 |
+ addi r5,r1,STACK_PARAMS # r5 --> extra stack args
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288 |
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289 |
std r0, 16(r1)
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290 |
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291 |
stdu r1,-288(r1)
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292 |
# r3 has the 'self' pointer
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293 |
# already
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294 |
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295 |
mr r4,r11 # r4 is methodIndex selector,
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296 |
@@ -70,12 +92,16 @@ SharedStub:
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297 |
bl PrepareAndDispatch
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298 |
nop
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299 |
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300 |
ld 1,0(r1) # restore stack
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301 |
ld r0,16(r1) # restore LR
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302 |
mtlr r0
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303 |
blr
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304 |
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305 |
+#if _CALL_ELF == 2
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306 |
+ .size SharedStub,.-SharedStub
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307 |
+#else
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308 |
.size SharedStub,.-.SharedStub
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309 |
+#endif
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310 |
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311 |
# Magic indicating no need for an executable stack
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312 |
.section .note.GNU-stack, "", @progbits ; .previous
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313 |
diff --git a/xpcom/reflect/xptcall/src/md/unix/xptcstubs_ppc64_linux.cpp b/xpcom/reflect/xptcall/src/md/unix/xptcstubs_ppc64_linux.cpp
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314 |
--- a/xpcom/reflect/xptcall/src/md/unix/xptcstubs_ppc64_linux.cpp
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315 |
+++ b/xpcom/reflect/xptcall/src/md/unix/xptcstubs_ppc64_linux.cpp
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316 |
@@ -78,17 +78,19 @@ PrepareAndDispatch(nsXPTCStubBase* self,
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317 |
dp->val.d = fprData[i];
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318 |
else
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319 |
dp->val.d = *(double*) ap;
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320 |
} else if (!param.IsOut() && type == nsXPTType::T_FLOAT) {
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321 |
if (i < FPR_COUNT)
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322 |
dp->val.f = (float) fprData[i]; // in registers floats are passed as doubles
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323 |
else {
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324 |
float *p = (float *)ap;
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325 |
+#ifndef __LITTLE_ENDIAN__
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326 |
p++;
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327 |
+#endif
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328 |
dp->val.f = *p;
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329 |
}
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330 |
} else { /* integer type or pointer */
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331 |
if (i < GPR_COUNT)
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332 |
tempu64 = gprData[i];
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333 |
else
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334 |
tempu64 = *ap;
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335 |
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336 |
@@ -148,16 +150,53 @@ PrepareAndDispatch(nsXPTCStubBase* self,
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337 |
// Create names would be like:
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338 |
// _ZN14nsXPTCStubBase5Stub1Ev
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339 |
// _ZN14nsXPTCStubBase6Stub12Ev
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340 |
// _ZN14nsXPTCStubBase7Stub123Ev
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341 |
// _ZN14nsXPTCStubBase8Stub1234Ev
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342 |
// etc.
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343 |
// Use assembler directives to get the names right...
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344 |
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345 |
+#if _CALL_ELF == 2
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|
346 |
+# define STUB_ENTRY(n) \
|
|
347 |
+__asm__ ( \
|
|
348 |
+ ".section \".text\" \n\t" \
|
|
349 |
+ ".align 2 \n\t" \
|
|
350 |
+ ".if "#n" < 10 \n\t" \
|
|
351 |
+ ".globl _ZN14nsXPTCStubBase5Stub"#n"Ev \n\t" \
|
|
352 |
+ ".type _ZN14nsXPTCStubBase5Stub"#n"Ev,@function \n\n" \
|
|
353 |
+"_ZN14nsXPTCStubBase5Stub"#n"Ev: \n\t" \
|
|
354 |
+ "0: addis 2,12,.TOC.-0b@ha \n\t" \
|
|
355 |
+ "addi 2,2,.TOC.-0b@l \n\t" \
|
|
356 |
+ ".localentry _ZN14nsXPTCStubBase5Stub"#n"Ev,.-_ZN14nsXPTCStubBase5Stub"#n"Ev \n\t" \
|
|
357 |
+ \
|
|
358 |
+ ".elseif "#n" < 100 \n\t" \
|
|
359 |
+ ".globl _ZN14nsXPTCStubBase6Stub"#n"Ev \n\t" \
|
|
360 |
+ ".type _ZN14nsXPTCStubBase6Stub"#n"Ev,@function \n\n" \
|
|
361 |
+"_ZN14nsXPTCStubBase6Stub"#n"Ev: \n\t" \
|
|
362 |
+ "0: addis 2,12,.TOC.-0b@ha \n\t" \
|
|
363 |
+ "addi 2,2,.TOC.-0b@l \n\t" \
|
|
364 |
+ ".localentry _ZN14nsXPTCStubBase6Stub"#n"Ev,.-_ZN14nsXPTCStubBase6Stub"#n"Ev \n\t" \
|
|
365 |
+ \
|
|
366 |
+ ".elseif "#n" < 1000 \n\t" \
|
|
367 |
+ ".globl _ZN14nsXPTCStubBase7Stub"#n"Ev \n\t" \
|
|
368 |
+ ".type _ZN14nsXPTCStubBase7Stub"#n"Ev,@function \n\n" \
|
|
369 |
+"_ZN14nsXPTCStubBase7Stub"#n"Ev: \n\t" \
|
|
370 |
+ "0: addis 2,12,.TOC.-0b@ha \n\t" \
|
|
371 |
+ "addi 2,2,.TOC.-0b@l \n\t" \
|
|
372 |
+ ".localentry _ZN14nsXPTCStubBase7Stub"#n"Ev,.-_ZN14nsXPTCStubBase7Stub"#n"Ev \n\t" \
|
|
373 |
+ \
|
|
374 |
+ ".else \n\t" \
|
|
375 |
+ ".err \"stub number "#n" >= 1000 not yet supported\"\n" \
|
|
376 |
+ ".endif \n\t" \
|
|
377 |
+ \
|
|
378 |
+ "li 11,"#n" \n\t" \
|
|
379 |
+ "b SharedStub \n" \
|
|
380 |
+);
|
|
381 |
+#else
|
|
382 |
# define STUB_ENTRY(n) \
|
|
383 |
__asm__ ( \
|
|
384 |
".section \".toc\",\"aw\" \n\t" \
|
|
385 |
".section \".text\" \n\t" \
|
|
386 |
".align 2 \n\t" \
|
|
387 |
".if "#n" < 10 \n\t" \
|
|
388 |
".globl _ZN14nsXPTCStubBase5Stub"#n"Ev \n\t" \
|
|
389 |
".section \".opd\",\"aw\" \n\t" \
|
|
390 |
@@ -190,16 +229,17 @@ PrepareAndDispatch(nsXPTCStubBase* self,
|
|
391 |
\
|
|
392 |
".else \n\t" \
|
|
393 |
".err \"stub number "#n" >= 1000 not yet supported\"\n" \
|
|
394 |
".endif \n\t" \
|
|
395 |
\
|
|
396 |
"li 11,"#n" \n\t" \
|
|
397 |
"b SharedStub \n" \
|
|
398 |
);
|
|
399 |
+#endif
|
|
400 |
|
|
401 |
#define SENTINEL_ENTRY(n) \
|
|
402 |
nsresult nsXPTCStubBase::Sentinel##n() \
|
|
403 |
{ \
|
|
404 |
NS_ERROR("nsXPTCStubBase::Sentinel called"); \
|
|
405 |
return NS_ERROR_NOT_IMPLEMENTED; \
|
|
406 |
}
|
|
407 |
|