Commit 28b2ed86 authored by Nicholas Piggin's avatar Nicholas Piggin Committed by Michael Ellerman
Browse files

powerpc/ps3: Make real stack frames for LV1 hcalls 



The PS3 hcall assembly code makes ad-hoc stack frames that don't have
a back-chain pointer or meet other requirements like minimum frame size.
This probably confuses stack unwinders. Give all hcalls a real stack
frame.

Signed-off-by: default avatarNicholas Piggin <npiggin@gmail.com>
Tested-by: default avatarGeoff Levand <geoff@infradead.org>
[mpe: Add missing \ in LV1_2_IN_4_OUT]
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20231227072405.63751-4-npiggin@gmail.com
parent d901473c

arch/powerpc/platforms/ps3/hvcall.S

+94 −58
Original line number Diff line number Diff line
@@ -9,6 +9,7 @@ 


#include <asm/processor.h>

#include <asm/ppc_asm.h>

#include <asm/ptrace.h>



#define lv1call .long 0x44000022; extsw r3, r3
@@ -18,8 +19,10 @@ _GLOBAL(_##API_NAME) \ 
	mflr	r0;				\

	std	r0, LRSAVE(r1);			\

						\

	stdu    r1, -STACK_FRAME_MIN_SIZE(r1);	\

	li      r11, API_NUMBER;		\

	lv1call;				\

	addi	r1, r1, STACK_FRAME_MIN_SIZE;	\

						\

	ld	r0, LRSAVE(r1);			\

	mtlr	r0;				\
@@ -40,12 +43,13 @@ _GLOBAL(_##API_NAME) \ 
	mflr	r0;				\

	std	r0, LRSAVE(r1);			\

						\

	stdu    r3, -8(r1);			\

	std	r3, -8(r1);			\

	stdu    r1, -STACK_FRAME_MIN_SIZE-8(r1); \

						\

	li      r11, API_NUMBER;		\

	lv1call;				\

						\

	addi	r1, r1, 8;			\

	addi	r1, r1, STACK_FRAME_MIN_SIZE+8;	\

	ld	r11, -8(r1);			\

	std	r4, 0(r11);			\

						\
@@ -60,12 +64,13 @@ _GLOBAL(_##API_NAME) \ 
	std	r0, LRSAVE(r1);			\

						\

	std     r3, -8(r1);			\

	stdu	r4, -16(r1);			\

	std	r4, -16(r1);			\

	stdu    r1, -STACK_FRAME_MIN_SIZE-16(r1); \

						\

	li      r11, API_NUMBER;		\

	lv1call;				\

						\

	addi	r1, r1, 16;			\

	addi	r1, r1, STACK_FRAME_MIN_SIZE+16; \

	ld	r11, -8(r1);			\

	std	r4, 0(r11);			\

	ld	r11, -16(r1);			\
@@ -83,12 +88,13 @@ _GLOBAL(_##API_NAME) \ 
						\

	std     r3, -8(r1);			\

	std	r4, -16(r1);			\

	stdu	r5, -24(r1);			\

	std	r5, -24(r1);			\

	stdu    r1, -STACK_FRAME_MIN_SIZE-24(r1); \

						\

	li      r11, API_NUMBER;		\

	lv1call;				\

						\

	addi	r1, r1, 24;			\

	addi	r1, r1, STACK_FRAME_MIN_SIZE+24; \

	ld	r11, -8(r1);			\

	std	r4, 0(r11);			\

	ld	r11, -16(r1);			\
@@ -112,12 +118,13 @@ _GLOBAL(_##API_NAME) \ 
	std	r6, -32(r1);			\

	std	r7, -40(r1);			\

	std	r8, -48(r1);			\

	stdu	r9, -56(r1);			\

	std	r9, -56(r1);			\

	stdu    r1, -STACK_FRAME_MIN_SIZE-56(r1); \

						\

	li      r11, API_NUMBER;		\

	lv1call;				\

						\

	addi	r1, r1, 56;			\

	addi	r1, r1, STACK_FRAME_MIN_SIZE+56; \

	ld	r11, -8(r1);			\

	std	r4, 0(r11);			\

	ld	r11, -16(r1);			\
@@ -143,12 +150,13 @@ _GLOBAL(_##API_NAME) \ 
	mflr	r0;				\

	std	r0, LRSAVE(r1);			\

						\

	stdu    r4, -8(r1);			\

	std	r4, -8(r1);			\

	stdu    r1, -STACK_FRAME_MIN_SIZE-8(r1); \

						\

	li      r11, API_NUMBER;		\

	lv1call;				\

						\

	addi	r1, r1, 8;			\

	addi	r1, r1, STACK_FRAME_MIN_SIZE+8;	\

	ld	r11, -8(r1);			\

	std	r4, 0(r11);			\

						\
@@ -163,12 +171,13 @@ _GLOBAL(_##API_NAME) \ 
	std	r0, LRSAVE(r1);			\

						\

	std     r4, -8(r1);			\

	stdu	r5, -16(r1);			\

	std	r5, -16(r1);			\

	stdu    r1, -STACK_FRAME_MIN_SIZE-16(r1); \

						\

	li      r11, API_NUMBER;		\

	lv1call;				\

						\

	addi	r1, r1, 16;			\

	addi	r1, r1, STACK_FRAME_MIN_SIZE+16; \

	ld	r11, -8(r1);			\

	std	r4, 0(r11);			\

	ld	r11, -16(r1);			\
@@ -186,12 +195,13 @@ _GLOBAL(_##API_NAME) \ 
						\

	std     r4, -8(r1);			\

	std	r5, -16(r1);			\

	stdu	r6, -24(r1);			\

	std	r6, -24(r1);			\

	stdu    r1, -STACK_FRAME_MIN_SIZE-24(r1); \

						\

	li      r11, API_NUMBER;		\

	lv1call;				\

						\

	addi	r1, r1, 24;			\

	addi	r1, r1, STACK_FRAME_MIN_SIZE+24; \

	ld	r11, -8(r1);			\

	std	r4, 0(r11);			\

	ld	r11, -16(r1);			\
@@ -212,12 +222,13 @@ _GLOBAL(_##API_NAME) \ 
	std     r4, -8(r1);			\

	std	r5, -16(r1);			\

	std	r6, -24(r1);			\

	stdu	r7, -32(r1);			\

	std	r7, -32(r1);			\

	stdu    r1, -STACK_FRAME_MIN_SIZE-32(r1); \

						\

	li      r11, API_NUMBER;		\

	lv1call;				\

						\

	addi	r1, r1, 32;			\

	addi	r1, r1, STACK_FRAME_MIN_SIZE+32; \

	ld	r11, -8(r1);			\

	std	r4, 0(r11);			\

	ld	r11, -16(r1);			\
@@ -241,12 +252,13 @@ _GLOBAL(_##API_NAME) \ 
	std	r5, -16(r1);			\

	std	r6, -24(r1);			\

	std	r7, -32(r1);			\

	stdu	r8, -40(r1);			\

	std	r8, -40(r1);			\

	stdu    r1, -STACK_FRAME_MIN_SIZE-40(r1); \

						\

	li      r11, API_NUMBER;		\

	lv1call;				\

						\

	addi	r1, r1, 40;			\

	addi	r1, r1, STACK_FRAME_MIN_SIZE+40; \

	ld	r11, -8(r1);			\

	std	r4, 0(r11);			\

	ld	r11, -16(r1);			\
@@ -273,12 +285,13 @@ _GLOBAL(_##API_NAME) \ 
	std	r6, -24(r1);			\

	std	r7, -32(r1);			\

	std	r8, -40(r1);			\

	stdu	r9, -48(r1);			\

	std	r9, -48(r1);			\

	stdu    r1, -STACK_FRAME_MIN_SIZE-48(r1); \

						\

	li      r11, API_NUMBER;		\

	lv1call;				\

						\

	addi	r1, r1, 48;			\

	addi	r1, r1, STACK_FRAME_MIN_SIZE+48; \

	ld	r11, -8(r1);			\

	std	r4, 0(r11);			\

	ld	r11, -16(r1);			\
@@ -308,12 +321,13 @@ _GLOBAL(_##API_NAME) \ 
	std	r7, -32(r1);			\

	std	r8, -40(r1);			\

	std	r9, -48(r1);			\

	stdu	r10, -56(r1);			\

	std	r10, -56(r1);			\

	stdu    r1, -STACK_FRAME_MIN_SIZE-56(r1); \

						\

	li      r11, API_NUMBER;		\

	lv1call;				\

						\

	addi	r1, r1, 56;			\

	addi	r1, r1, STACK_FRAME_MIN_SIZE+56; \

	ld	r11, -8(r1);			\

	std	r4, 0(r11);			\

	ld	r11, -16(r1);			\
@@ -339,12 +353,13 @@ _GLOBAL(_##API_NAME) \ 
	mflr	r0;				\

	std	r0, LRSAVE(r1);			\

						\

	stdu	r5, -8(r1);			\

	std	r5, -8(r1);			\

	stdu    r1, -STACK_FRAME_MIN_SIZE-8(r1); \

						\

	li      r11, API_NUMBER;		\

	lv1call;				\

						\

	addi	r1, r1, 8;			\

	addi	r1, r1, STACK_FRAME_MIN_SIZE+8;	\

	ld	r11, -8(r1);			\

	std	r4, 0(r11);			\

						\
@@ -359,12 +374,13 @@ _GLOBAL(_##API_NAME) \ 
	std	r0, LRSAVE(r1);			\

						\

	std     r5, -8(r1);			\

	stdu	r6, -16(r1);			\

	std	r6, -16(r1);			\

	stdu    r1, -STACK_FRAME_MIN_SIZE-16(r1); \

						\

	li      r11, API_NUMBER;		\

	lv1call;				\

						\

	addi	r1, r1, 16;			\

	addi	r1, r1, STACK_FRAME_MIN_SIZE+16; \

	ld	r11, -8(r1);			\

	std	r4, 0(r11);			\

	ld	r11, -16(r1);			\
@@ -382,12 +398,13 @@ _GLOBAL(_##API_NAME) \ 
						\

	std     r5, -8(r1);			\

	std	r6, -16(r1);			\

	stdu	r7, -24(r1);			\

	std	r7, -24(r1);			\

	stdu    r1, -STACK_FRAME_MIN_SIZE-24(r1); \

						\

	li      r11, API_NUMBER;		\

	lv1call;				\

						\

	addi	r1, r1, 24;			\

	addi	r1, r1, STACK_FRAME_MIN_SIZE+24; \

	ld	r11, -8(r1);			\

	std	r4, 0(r11);			\

	ld	r11, -16(r1);			\
@@ -408,12 +425,13 @@ _GLOBAL(_##API_NAME) \ 
	std     r5, -8(r1);			\

	std	r6, -16(r1);			\

	std	r7, -24(r1);			\

	stdu	r8, -32(r1);			\

	std	r8, -32(r1);			\

	stdu    r1, -STACK_FRAME_MIN_SIZE-32(r1); \

						\

	li      r11, API_NUMBER;		\

	lv1call;				\

						\

	addi	r1, r1, 32;			\

	addi	r1, r1, STACK_FRAME_MIN_SIZE+32;\

	ld	r11, -8(r1);			\

	std	r4, 0(r11);			\

	ld	r11, -16(r1);			\
@@ -437,12 +455,13 @@ _GLOBAL(_##API_NAME) \ 
	std	r6, -16(r1);			\

	std	r7, -24(r1);			\

	std	r8, -32(r1);			\

	stdu	r9, -40(r1);			\

	std	r9, -40(r1);			\

	stdu    r1, -STACK_FRAME_MIN_SIZE-40(r1); \

						\

	li      r11, API_NUMBER;		\

	lv1call;				\

						\

	addi	r1, r1, 40;			\

	addi	r1, r1, STACK_FRAME_MIN_SIZE+40; \

	ld	r11, -8(r1);			\

	std	r4, 0(r11);			\

	ld	r11, -16(r1);			\
@@ -464,12 +483,13 @@ _GLOBAL(_##API_NAME) \ 
	mflr	r0;				\

	std	r0, LRSAVE(r1);			\

						\

	stdu	r6, -8(r1);			\

	std	r6, -8(r1);			\

	stdu    r1, -STACK_FRAME_MIN_SIZE-8(r1); \

						\

	li      r11, API_NUMBER;		\

	lv1call;				\

						\

	addi	r1, r1, 8;			\

	addi	r1, r1, STACK_FRAME_MIN_SIZE+8;	\

	ld	r11, -8(r1);			\

	std	r4, 0(r11);			\

						\
@@ -484,12 +504,13 @@ _GLOBAL(_##API_NAME) \ 
	std	r0, LRSAVE(r1);			\

						\

	std     r6, -8(r1);			\

	stdu	r7, -16(r1);			\

	std	r7, -16(r1);			\

	stdu    r1, -STACK_FRAME_MIN_SIZE-16(r1); \

						\

	li      r11, API_NUMBER;		\

	lv1call;				\

						\

	addi	r1, r1, 16;			\

	addi	r1, r1, STACK_FRAME_MIN_SIZE+16; \

	ld	r11, -8(r1);			\

	std	r4, 0(r11);			\

	ld	r11, -16(r1);			\
@@ -507,12 +528,13 @@ _GLOBAL(_##API_NAME) \ 
						\

	std     r6, -8(r1);			\

	std	r7, -16(r1);			\

	stdu	r8, -24(r1);			\

	std	r8, -24(r1);			\

	stdu    r1, -STACK_FRAME_MIN_SIZE-24(r1); \

						\

	li      r11, API_NUMBER;		\

	lv1call;				\

						\

	addi	r1, r1, 24;			\

	addi	r1, r1, STACK_FRAME_MIN_SIZE+24; \

	ld	r11, -8(r1);			\

	std	r4, 0(r11);			\

	ld	r11, -16(r1);			\
@@ -530,12 +552,13 @@ _GLOBAL(_##API_NAME) \ 
	mflr	r0;				\

	std	r0, LRSAVE(r1);			\

						\

	stdu    r7, -8(r1);			\

	std	r7, -8(r1);			\

	stdu    r1, -STACK_FRAME_MIN_SIZE-8(r1); \

						\

	li      r11, API_NUMBER;		\

	lv1call;				\

						\

	addi	r1, r1, 8;			\

	addi	r1, r1, STACK_FRAME_MIN_SIZE+8;	\

	ld	r11, -8(r1);			\

	std	r4, 0(r11);			\

						\
@@ -550,12 +573,13 @@ _GLOBAL(_##API_NAME) \ 
	std	r0, LRSAVE(r1);			\

						\

	std     r7, -8(r1);			\

	stdu	r8, -16(r1);			\

	std	r8, -16(r1);			\

	stdu    r1, -STACK_FRAME_MIN_SIZE-16(r1); \

						\

	li      r11, API_NUMBER;		\

	lv1call;				\

						\

	addi	r1, r1, 16;			\

	addi	r1, r1, STACK_FRAME_MIN_SIZE+16; \

	ld	r11, -8(r1);			\

	std	r4, 0(r11);			\

	ld	r11, -16(r1);			\
@@ -573,12 +597,13 @@ _GLOBAL(_##API_NAME) \ 
						\

	std     r7, -8(r1);			\

	std	r8, -16(r1);			\

	stdu	r9, -24(r1);			\

	std	r9, -24(r1);			\

	stdu    r1, -STACK_FRAME_MIN_SIZE-24(r1); \

						\

	li      r11, API_NUMBER;		\

	lv1call;				\

						\

	addi	r1, r1, 24;			\

	addi	r1, r1, STACK_FRAME_MIN_SIZE+24; \

	ld	r11, -8(r1);			\

	std	r4, 0(r11);			\

	ld	r11, -16(r1);			\
@@ -596,12 +621,13 @@ _GLOBAL(_##API_NAME) \ 
	mflr	r0;				\

	std	r0, LRSAVE(r1);			\

						\

	stdu    r8, -8(r1);			\

	std	r8, -8(r1);			\

	stdu    r1, -STACK_FRAME_MIN_SIZE-8(r1); \

						\

	li      r11, API_NUMBER;		\

	lv1call;				\

						\

	addi	r1, r1, 8;			\

	addi	r1, r1, STACK_FRAME_MIN_SIZE+8;	\

	ld	r11, -8(r1);			\

	std	r4, 0(r11);			\

						\
@@ -616,12 +642,13 @@ _GLOBAL(_##API_NAME) \ 
	std	r0, LRSAVE(r1);			\

						\

	std     r8, -8(r1);			\

	stdu	r9, -16(r1);			\

	std	r9, -16(r1);			\

	stdu    r1, -STACK_FRAME_MIN_SIZE-16(r1); \

						\

	li      r11, API_NUMBER;		\

	lv1call;				\

						\

	addi	r1, r1, 16;			\

	addi	r1, r1, STACK_FRAME_MIN_SIZE+16; \

	ld	r11, -8(r1);			\

	std	r4, 0(r11);			\

	ld	r11, -16(r1);			\
@@ -639,12 +666,13 @@ _GLOBAL(_##API_NAME) \ 
						\

	std     r8, -8(r1);			\

	std	r9, -16(r1);			\

	stdu	r10, -24(r1);			\

	std	r10, -24(r1);			\

	stdu    r1, -STACK_FRAME_MIN_SIZE-24(r1); \

						\

	li      r11, API_NUMBER;		\

	lv1call;				\

						\

	addi	r1, r1, 24;			\

	addi	r1, r1, STACK_FRAME_MIN_SIZE+24; \

	ld	r11, -8(r1);			\

	std	r4, 0(r11);			\

	ld	r11, -16(r1);			\
@@ -662,12 +690,13 @@ _GLOBAL(_##API_NAME) \ 
	mflr	r0;				\

	std	r0, LRSAVE(r1);			\

						\

	stdu    r9, -8(r1);			\

	std	r9, -8(r1);			\

	stdu    r1, -STACK_FRAME_MIN_SIZE-8(r1); \

						\

	li      r11, API_NUMBER;		\

	lv1call;				\

						\

	addi	r1, r1, 8;			\

	addi	r1, r1, STACK_FRAME_MIN_SIZE+8;	\

	ld	r11, -8(r1);			\

	std	r4, 0(r11);			\

						\
@@ -682,12 +711,13 @@ _GLOBAL(_##API_NAME) \ 
	std	r0, LRSAVE(r1);			\

						\

	std     r9, -8(r1);			\

	stdu    r10, -16(r1);			\

	std	r10, -16(r1);			\

	stdu    r1, -STACK_FRAME_MIN_SIZE-16(r1); \

						\

	li      r11, API_NUMBER;		\

	lv1call;				\

						\

	addi	r1, r1, 16;			\

	addi	r1, r1, STACK_FRAME_MIN_SIZE+16; \

	ld	r11, -8(r1);			\

	std	r4, 0(r11);			\

	ld	r11, -16(r1);			\
@@ -704,12 +734,13 @@ _GLOBAL(_##API_NAME) \ 
	std	r0, LRSAVE(r1);			\

						\

	std     r9, -8(r1);			\

	stdu    r10, -16(r1);			\

	std	r10, -16(r1);			\

	stdu    r1, -STACK_FRAME_MIN_SIZE-16(r1); \

						\

	li      r11, API_NUMBER;		\

	lv1call;				\

						\

	addi	r1, r1, 16;			\

	addi	r1, r1, STACK_FRAME_MIN_SIZE+16; \

	ld	r11, -8(r1);			\

	std	r4, 0(r11);			\

	ld	r11, -16(r1);			\
@@ -727,12 +758,13 @@ _GLOBAL(_##API_NAME) \ 
	mflr	r0;				\

	std	r0, LRSAVE(r1);			\

						\

	stdu    r10, -8(r1);			\

	std	r10, -8(r1);			\

	stdu    r1, -STACK_FRAME_MIN_SIZE-8(r1); \

						\

	li      r11, API_NUMBER;		\

	lv1call;				\

						\

	addi	r1, r1, 8;			\

	addi	r1, r1, STACK_FRAME_MIN_SIZE+8;	\

	ld	r11, -8(r1);			\

	std	r4, 0(r11);			\

						\
@@ -747,10 +779,12 @@ _GLOBAL(_##API_NAME) \ 
	std	r0, LRSAVE(r1);			\

						\

	std	r10, STK_PARAM_AREA+8*7(r1);	\

	stdu    r1, -STACK_FRAME_MIN_SIZE(r1);	\

						\

	li	r11, API_NUMBER;		\

	lv1call;				\

						\

	addi	r1, r1, STACK_FRAME_MIN_SIZE;	\

	ld	r11, STK_PARAM_AREA+8*7(r1);	\

	std	r4, 0(r11);			\

	ld	r11, STK_PARAM_AREA+8*8(r1);	\
@@ -773,10 +807,12 @@ _GLOBAL(_##API_NAME) \ 
						\

	mflr	r0;				\

	std	r0, LRSAVE(r1);			\

	stdu    r1, -STACK_FRAME_MIN_SIZE(r1);	\

						\

	li      r11, API_NUMBER;		\

	lv1call;				\

						\

	addi	r1, r1, STACK_FRAME_MIN_SIZE;	\

	ld	r11, STK_PARAM_AREA+8*8(r1);	\

	std	r4, 0(r11);			\

						\