From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 21:33:14 +0200
Subject: Adding upstream version 115.7.0esr.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../reflect/xptcall/md/unix/xptcinvoke_asm_pa32.s  | 131 +++++++++++++++++++++
 1 file changed, 131 insertions(+)
 create mode 100644 xpcom/reflect/xptcall/md/unix/xptcinvoke_asm_pa32.s

(limited to 'xpcom/reflect/xptcall/md/unix/xptcinvoke_asm_pa32.s')

diff --git a/xpcom/reflect/xptcall/md/unix/xptcinvoke_asm_pa32.s b/xpcom/reflect/xptcall/md/unix/xptcinvoke_asm_pa32.s
new file mode 100644
index 0000000000..6fa9a86ba8
--- /dev/null
+++ b/xpcom/reflect/xptcall/md/unix/xptcinvoke_asm_pa32.s
@@ -0,0 +1,131 @@
+  .LEVEL  1.1
+framesz .EQU 128
+
+; XPTC_InvokeByIndex(nsISuppots* that, uint32_t methodIndex,
+;   uint32_t paramCount, nsXPTCVariant* params);
+
+; g++ need to compile everything with -fvtable-thunks !
+
+  .SPACE  $TEXT$,SORT=8
+  .SUBSPA $CODE$,QUAD=0,ALIGN=4,ACCESS=0x2c,CODE_ONLY,SORT=24
+XPTC_InvokeByIndex
+  .PROC
+  .CALLINFO CALLER,FRAME=72,ENTRY_GR=%r3,SAVE_RP,SAVE_SP,ARGS_SAVED,ALLOCA_FRAME
+
+ ; frame marker takes 48 bytes,
+ ; register spill area takes 8 bytes,
+ ; local stack area takes 72 bytes result in 128 bytes total
+
+  .ENTRY
+        STW          %rp,-20(%sp)
+        STW,MA       %r3,128(%sp)
+
+        LDO     -framesz(%r30),%r28
+        STW     %r28,-4(%r30)       ; save previous sp
+        STW     %r19,-32(%r30)
+
+        STW     %r26,-36-framesz(%r30)  ; save argument registers in
+        STW     %r25,-40-framesz(%r30)  ; in PREVIOUS frame
+        STW     %r24,-44-framesz(%r30)  ;
+        STW     %r23,-48-framesz(%r30)  ;
+
+        B,L     .+8,%r2
+        ADDIL   L'invoke_count_bytes-$PIC_pcrel$1+4,%r2,%r1
+        LDO     R'invoke_count_bytes-$PIC_pcrel$2+8(%r1),%r1
+$PIC_pcrel$1
+        LDSID   (%r1),%r31
+$PIC_pcrel$2
+        MTSP    %r31,%sr0
+        .CALL   ARGW0=GR,ARGW1=GR,ARGW2=GR ;in=24,25,26;out=28
+        BE,L    0(%sr0,%r1),%r31
+        COPY    %r31,%r2
+
+        CMPIB,>=        0,%r28, .+76
+        COPY    %r30,%r3            ; copy stack ptr to saved stack ptr
+        ADD     %r30,%r28,%r30      ; extend stack frame
+        LDW     -4(%r3),%r28        ; move frame
+        STW     %r28,-4(%r30)
+        LDW     -8(%r3),%r28
+        STW     %r28,-8(%r30)
+        LDW     -12(%r3),%r28
+        STW     %r28,-12(%r30)
+        LDW     -16(%r3),%r28
+        STW     %r28,-16(%r30)
+        LDW     -20(%r3),%r28
+        STW     %r28,-20(%r30)
+        LDW     -24(%r3),%r28
+        STW     %r28,-24(%r30)
+        LDW     -28(%r3),%r28
+        STW     %r28,-28(%r30)
+        LDW     -32(%r3),%r28
+        STW     %r28,-32(%r30)
+
+        LDO     -40(%r30),%r26         ; load copy address
+        LDW     -44-framesz(%r3),%r25  ; load rest of 2 arguments
+        LDW     -48-framesz(%r3),%r24  ;
+
+        LDW     -32(%r30),%r19 ; shared lib call destroys r19; reload
+        B,L     .+8,%r2
+        ADDIL   L'invoke_copy_to_stack-$PIC_pcrel$3+4,%r2,%r1
+        LDO     R'invoke_copy_to_stack-$PIC_pcrel$4+8(%r1),%r1
+$PIC_pcrel$3
+        LDSID   (%r1),%r31
+$PIC_pcrel$4
+        MTSP    %r31,%sr0
+        .CALL   ARGW0=GR,ARGW1=GR,ARGW2=GR ;in=24,25,26
+        BE,L    0(%sr0,%r1),%r31
+        COPY    %r31,%r2
+
+        LDO     -48(%r30),%r20
+        EXTRW,U,= %r28,31,1,%r22
+        FLDD    0(%r20),%fr7  ; load double arg 1
+        EXTRW,U,= %r28,30,1,%r22
+        FLDW    8(%r20),%fr5L ; load float arg 1
+        EXTRW,U,= %r28,29,1,%r22
+        FLDW    4(%r20),%fr6L ; load float arg 2
+        EXTRW,U,= %r28,28,1,%r22
+        FLDW    0(%r20),%fr7L ; load float arg 3
+
+        LDW     -36-framesz(%r3),%r26  ; load ptr to 'that'
+        LDW     -40(%r30),%r25  ; load the rest of dispatch argument registers
+        LDW     -44(%r30),%r24
+        LDW     -48(%r30),%r23
+
+        LDW     -36-framesz(%r3),%r20  ; load vtable addr
+        LDW     -40-framesz(%r3),%r28  ; load index
+        LDW     0(%r20),%r20    ; follow vtable
+        LDO     16(%r20),%r20   ; offset vtable by 16 bytes (g++: 8, aCC: 16)
+        SH2ADDL %r28,%r20,%r28  ; add 4*index to vtable entry
+        LDW     0(%r28),%r22    ; load vtable entry
+
+        B,L     .+8,%r2
+        ADDIL   L'$$dyncall_external-$PIC_pcrel$5+4,%r2,%r1
+        LDO     R'$$dyncall_external-$PIC_pcrel$6+8(%r1),%r1
+$PIC_pcrel$5
+        LDSID   (%r1),%r31
+$PIC_pcrel$6
+        MTSP    %r31,%sr0
+        .CALL ARGW0=GR,ARGW1=GR,ARGW2=GR,ARGW3=GR,RTNVAL=GR
+;in=22-26;out=28;
+        BE,L    0(%sr0,%r1),%r31
+        COPY    %r31,%r2
+
+        LDW     -32(%r30),%r19
+        COPY    %r3,%r30              ; restore saved stack ptr
+
+        LDW          -148(%sp),%rp
+        BVE             (%rp)
+  .EXIT
+        LDW,MB       -128(%sp),%r3
+
+  .PROCEND  ;in=23,24,25,26;
+
+  .ALIGN  8
+  .SPACE  $TEXT$
+  .SUBSPA $CODE$
+  .IMPORT $$dyncall_external,MILLICODE
+  .IMPORT invoke_count_bytes,CODE
+  .IMPORT invoke_copy_to_stack,CODE
+  .EXPORT XPTC_InvokeByIndex,ENTRY,PRIV_LEV=3,ARGW0=GR,ARGW1=GR,ARGW2=GR,ARGW3=GR,RTNVAL=GR,LONG_RETURN
+  .END
+
-- 
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