Merge "Mterp/arm64: Add CFI directives."
diff --git a/runtime/arch/arm64/quick_entrypoints_arm64.S b/runtime/arch/arm64/quick_entrypoints_arm64.S
index 4372d45..b88515f 100644
--- a/runtime/arch/arm64/quick_entrypoints_arm64.S
+++ b/runtime/arch/arm64/quick_entrypoints_arm64.S
@@ -1317,6 +1317,7 @@
RESTORE_TWO_REGS_DECREASE_FRAME x0, x1, 32
ret
.cfi_restore_state // Reset unwind info so following code unwinds.
+ .cfi_def_cfa_offset 32 // workaround for clang bug: 31975598
.Lthrow_class_cast_exception:
// Restore
@@ -1484,6 +1485,7 @@
strb w3, [x3, x0]
ret
.cfi_restore_state // Reset unwind info so following code unwinds.
+ .cfi_def_cfa_offset 32 // workaround for clang bug: 31975598
.Lthrow_array_store_exception:
RESTORE_TWO_REGS x2, xLR, 16
RESTORE_TWO_REGS_DECREASE_FRAME x0, x1, 32
diff --git a/runtime/interpreter/mterp/arm64/entry.S b/runtime/interpreter/mterp/arm64/entry.S
index 9fbbbd3..441c1a1 100644
--- a/runtime/interpreter/mterp/arm64/entry.S
+++ b/runtime/interpreter/mterp/arm64/entry.S
@@ -31,11 +31,11 @@
ExecuteMterpImpl:
.cfi_startproc
- stp xPROFILE, x27, [sp, #-80]!
- stp xIBASE, xREFS, [sp, #16]
- stp xSELF, xINST, [sp, #32]
- stp xPC, xFP, [sp, #48]
- stp fp, lr, [sp, #64]
+ SAVE_TWO_REGS_INCREASE_FRAME xPROFILE, x27, 80
+ SAVE_TWO_REGS xIBASE, xREFS, 16
+ SAVE_TWO_REGS xSELF, xINST, 32
+ SAVE_TWO_REGS xPC, xFP, 48
+ SAVE_TWO_REGS fp, lr, 64
add fp, sp, #64
/* Remember the return register */
diff --git a/runtime/interpreter/mterp/arm64/footer.S b/runtime/interpreter/mterp/arm64/footer.S
index ada0326..6ffbd3f 100644
--- a/runtime/interpreter/mterp/arm64/footer.S
+++ b/runtime/interpreter/mterp/arm64/footer.S
@@ -285,12 +285,15 @@
*/
cmp wPROFILE, #0
bgt MterpProfileActive // if > 0, we may have some counts to report.
- ldp fp, lr, [sp, #64]
- ldp xPC, xFP, [sp, #48]
- ldp xSELF, xINST, [sp, #32]
- ldp xIBASE, xREFS, [sp, #16]
- ldp xPROFILE, x27, [sp], #80
+ .cfi_remember_state
+ RESTORE_TWO_REGS fp, lr, 64
+ RESTORE_TWO_REGS xPC, xFP, 48
+ RESTORE_TWO_REGS xSELF, xINST, 32
+ RESTORE_TWO_REGS xIBASE, xREFS, 16
+ RESTORE_TWO_REGS_DECREASE_FRAME xPROFILE, x27, 80
ret
+ .cfi_restore_state // Reset unwind info so following code unwinds.
+ .cfi_def_cfa_offset 80 // workaround for clang bug: 31975598
MterpProfileActive:
mov xINST, x0 // stash return value
@@ -301,11 +304,11 @@
strh wPROFILE, [x1, #SHADOWFRAME_HOTNESS_COUNTDOWN_OFFSET]
bl MterpAddHotnessBatch // (method, shadow_frame, self)
mov x0, xINST // restore return value
- ldp fp, lr, [sp, #64]
- ldp xPC, xFP, [sp, #48]
- ldp xSELF, xINST, [sp, #32]
- ldp xIBASE, xREFS, [sp, #16]
- ldp xPROFILE, x27, [sp], #80
+ RESTORE_TWO_REGS fp, lr, 64
+ RESTORE_TWO_REGS xPC, xFP, 48
+ RESTORE_TWO_REGS xSELF, xINST, 32
+ RESTORE_TWO_REGS xIBASE, xREFS, 16
+ RESTORE_TWO_REGS_DECREASE_FRAME xPROFILE, x27, 80
ret
.cfi_endproc
diff --git a/runtime/interpreter/mterp/arm64/header.S b/runtime/interpreter/mterp/arm64/header.S
index c791eb5..7125d5a 100644
--- a/runtime/interpreter/mterp/arm64/header.S
+++ b/runtime/interpreter/mterp/arm64/header.S
@@ -292,3 +292,41 @@
.macro REFRESH_IBASE
ldr xIBASE, [xSELF, #THREAD_CURRENT_IBASE_OFFSET]
.endm
+
+/*
+ * Save two registers to the stack.
+ */
+.macro SAVE_TWO_REGS reg1, reg2, offset
+ stp \reg1, \reg2, [sp, #(\offset)]
+ .cfi_rel_offset \reg1, (\offset)
+ .cfi_rel_offset \reg2, (\offset) + 8
+.endm
+
+/*
+ * Restore two registers from the stack.
+ */
+.macro RESTORE_TWO_REGS reg1, reg2, offset
+ ldp \reg1, \reg2, [sp, #(\offset)]
+ .cfi_restore \reg1
+ .cfi_restore \reg2
+.endm
+
+/*
+ * Increase frame size and save two registers to the bottom of the stack.
+ */
+.macro SAVE_TWO_REGS_INCREASE_FRAME reg1, reg2, frame_adjustment
+ stp \reg1, \reg2, [sp, #-(\frame_adjustment)]!
+ .cfi_adjust_cfa_offset (\frame_adjustment)
+ .cfi_rel_offset \reg1, 0
+ .cfi_rel_offset \reg2, 8
+.endm
+
+/*
+ * Restore two registers from the bottom of the stack and decrease frame size.
+ */
+.macro RESTORE_TWO_REGS_DECREASE_FRAME reg1, reg2, frame_adjustment
+ ldp \reg1, \reg2, [sp], #(\frame_adjustment)
+ .cfi_restore \reg1
+ .cfi_restore \reg2
+ .cfi_adjust_cfa_offset -(\frame_adjustment)
+.endm
diff --git a/runtime/interpreter/mterp/out/mterp_arm64.S b/runtime/interpreter/mterp/out/mterp_arm64.S
index 42f8c1b..34d99a8 100644
--- a/runtime/interpreter/mterp/out/mterp_arm64.S
+++ b/runtime/interpreter/mterp/out/mterp_arm64.S
@@ -300,6 +300,44 @@
ldr xIBASE, [xSELF, #THREAD_CURRENT_IBASE_OFFSET]
.endm
+/*
+ * Save two registers to the stack.
+ */
+.macro SAVE_TWO_REGS reg1, reg2, offset
+ stp \reg1, \reg2, [sp, #(\offset)]
+ .cfi_rel_offset \reg1, (\offset)
+ .cfi_rel_offset \reg2, (\offset) + 8
+.endm
+
+/*
+ * Restore two registers from the stack.
+ */
+.macro RESTORE_TWO_REGS reg1, reg2, offset
+ ldp \reg1, \reg2, [sp, #(\offset)]
+ .cfi_restore \reg1
+ .cfi_restore \reg2
+.endm
+
+/*
+ * Increase frame size and save two registers to the bottom of the stack.
+ */
+.macro SAVE_TWO_REGS_INCREASE_FRAME reg1, reg2, frame_adjustment
+ stp \reg1, \reg2, [sp, #-(\frame_adjustment)]!
+ .cfi_adjust_cfa_offset (\frame_adjustment)
+ .cfi_rel_offset \reg1, 0
+ .cfi_rel_offset \reg2, 8
+.endm
+
+/*
+ * Restore two registers from the bottom of the stack and decrease frame size.
+ */
+.macro RESTORE_TWO_REGS_DECREASE_FRAME reg1, reg2, frame_adjustment
+ ldp \reg1, \reg2, [sp], #(\frame_adjustment)
+ .cfi_restore \reg1
+ .cfi_restore \reg2
+ .cfi_adjust_cfa_offset -(\frame_adjustment)
+.endm
+
/* File: arm64/entry.S */
/*
* Copyright (C) 2016 The Android Open Source Project
@@ -334,11 +372,11 @@
ExecuteMterpImpl:
.cfi_startproc
- stp xPROFILE, x27, [sp, #-80]!
- stp xIBASE, xREFS, [sp, #16]
- stp xSELF, xINST, [sp, #32]
- stp xPC, xFP, [sp, #48]
- stp fp, lr, [sp, #64]
+ SAVE_TWO_REGS_INCREASE_FRAME xPROFILE, x27, 80
+ SAVE_TWO_REGS xIBASE, xREFS, 16
+ SAVE_TWO_REGS xSELF, xINST, 32
+ SAVE_TWO_REGS xPC, xFP, 48
+ SAVE_TWO_REGS fp, lr, 64
add fp, sp, #64
/* Remember the return register */
@@ -7226,12 +7264,15 @@
*/
cmp wPROFILE, #0
bgt MterpProfileActive // if > 0, we may have some counts to report.
- ldp fp, lr, [sp, #64]
- ldp xPC, xFP, [sp, #48]
- ldp xSELF, xINST, [sp, #32]
- ldp xIBASE, xREFS, [sp, #16]
- ldp xPROFILE, x27, [sp], #80
+ .cfi_remember_state
+ RESTORE_TWO_REGS fp, lr, 64
+ RESTORE_TWO_REGS xPC, xFP, 48
+ RESTORE_TWO_REGS xSELF, xINST, 32
+ RESTORE_TWO_REGS xIBASE, xREFS, 16
+ RESTORE_TWO_REGS_DECREASE_FRAME xPROFILE, x27, 80
ret
+ .cfi_restore_state // Reset unwind info so following code unwinds.
+ .cfi_def_cfa_offset 80 // workaround for clang bug: 31975598
MterpProfileActive:
mov xINST, x0 // stash return value
@@ -7242,11 +7283,11 @@
strh wPROFILE, [x1, #SHADOWFRAME_HOTNESS_COUNTDOWN_OFFSET]
bl MterpAddHotnessBatch // (method, shadow_frame, self)
mov x0, xINST // restore return value
- ldp fp, lr, [sp, #64]
- ldp xPC, xFP, [sp, #48]
- ldp xSELF, xINST, [sp, #32]
- ldp xIBASE, xREFS, [sp, #16]
- ldp xPROFILE, x27, [sp], #80
+ RESTORE_TWO_REGS fp, lr, 64
+ RESTORE_TWO_REGS xPC, xFP, 48
+ RESTORE_TWO_REGS xSELF, xINST, 32
+ RESTORE_TWO_REGS xIBASE, xREFS, 16
+ RESTORE_TWO_REGS_DECREASE_FRAME xPROFILE, x27, 80
ret
.cfi_endproc