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powerpc/ps3: Make real stack frames for LV1 hcalls

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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: Nicholas Piggin <npiggin@gmail.com>
Tested-by: Geoff Levand <geoff@infradead.org>
[mpe: Add missing \ in LV1_2_IN_4_OUT]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20231227072405.63751-4-npiggin@gmail.com
This commit is contained in:
Nicholas Piggin
2023-12-27 17:24:05 +10:00
committed by Michael Ellerman
parent d901473c4d
commit 28b2ed8675
1 changed files with 94 additions and 58 deletions
Download Patch File Download Diff File Expand all files Collapse all files
arch/powerpc/platforms/ps3/hvcall.S
+94 -58
View File
@@ -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); \
\