summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--arch/x86/include/asm/orc_types.h4
-rw-r--r--arch/x86/include/asm/unwind_hints.h10
-rw-r--r--arch/x86/kernel/unwind_orc.c5
-rw-r--r--include/linux/objtool.h11
-rw-r--r--tools/arch/x86/include/asm/orc_types.h4
-rw-r--r--tools/include/linux/objtool.h11
-rw-r--r--tools/objtool/orc_dump.c4
7 files changed, 29 insertions, 20 deletions
diff --git a/arch/x86/include/asm/orc_types.h b/arch/x86/include/asm/orc_types.h
index 5a2baf28a1dc..1343a62106de 100644
--- a/arch/x86/include/asm/orc_types.h
+++ b/arch/x86/include/asm/orc_types.h
@@ -57,12 +57,14 @@ struct orc_entry {
unsigned sp_reg:4;
unsigned bp_reg:4;
unsigned type:2;
+ unsigned signal:1;
unsigned end:1;
#elif defined(__BIG_ENDIAN_BITFIELD)
unsigned bp_reg:4;
unsigned sp_reg:4;
- unsigned unused:5;
+ unsigned unused:4;
unsigned end:1;
+ unsigned signal:1;
unsigned type:2;
#endif
} __packed;
diff --git a/arch/x86/include/asm/unwind_hints.h b/arch/x86/include/asm/unwind_hints.h
index f66fbe6537dd..e7c71750b309 100644
--- a/arch/x86/include/asm/unwind_hints.h
+++ b/arch/x86/include/asm/unwind_hints.h
@@ -15,7 +15,7 @@
UNWIND_HINT type=UNWIND_HINT_TYPE_ENTRY end=1
.endm
-.macro UNWIND_HINT_REGS base=%rsp offset=0 indirect=0 extra=1 partial=0
+.macro UNWIND_HINT_REGS base=%rsp offset=0 indirect=0 extra=1 partial=0 signal=1
.if \base == %rsp
.if \indirect
.set sp_reg, ORC_REG_SP_INDIRECT
@@ -45,11 +45,11 @@
.set type, UNWIND_HINT_TYPE_REGS
.endif
- UNWIND_HINT sp_reg=sp_reg sp_offset=sp_offset type=type
+ UNWIND_HINT sp_reg=sp_reg sp_offset=sp_offset type=type signal=\signal
.endm
-.macro UNWIND_HINT_IRET_REGS base=%rsp offset=0
- UNWIND_HINT_REGS base=\base offset=\offset partial=1
+.macro UNWIND_HINT_IRET_REGS base=%rsp offset=0 signal=1
+ UNWIND_HINT_REGS base=\base offset=\offset partial=1 signal=\signal
.endm
.macro UNWIND_HINT_FUNC
@@ -67,7 +67,7 @@
#else
#define UNWIND_HINT_FUNC \
- UNWIND_HINT(ORC_REG_SP, 8, UNWIND_HINT_TYPE_FUNC, 0)
+ UNWIND_HINT(ORC_REG_SP, 8, UNWIND_HINT_TYPE_FUNC, 0, 0)
#endif /* __ASSEMBLY__ */
diff --git a/arch/x86/kernel/unwind_orc.c b/arch/x86/kernel/unwind_orc.c
index cdf6c6060170..37307b40f8da 100644
--- a/arch/x86/kernel/unwind_orc.c
+++ b/arch/x86/kernel/unwind_orc.c
@@ -484,6 +484,8 @@ bool unwind_next_frame(struct unwind_state *state)
goto the_end;
}
+ state->signal = orc->signal;
+
/* Find the previous frame's stack: */
switch (orc->sp_reg) {
case ORC_REG_SP:
@@ -563,7 +565,6 @@ bool unwind_next_frame(struct unwind_state *state)
state->sp = sp;
state->regs = NULL;
state->prev_regs = NULL;
- state->signal = false;
break;
case UNWIND_HINT_TYPE_REGS:
@@ -587,7 +588,6 @@ bool unwind_next_frame(struct unwind_state *state)
state->regs = (struct pt_regs *)sp;
state->prev_regs = NULL;
state->full_regs = true;
- state->signal = true;
break;
case UNWIND_HINT_TYPE_REGS_PARTIAL:
@@ -604,7 +604,6 @@ bool unwind_next_frame(struct unwind_state *state)
state->prev_regs = state->regs;
state->regs = (void *)sp - IRET_FRAME_OFFSET;
state->full_regs = false;
- state->signal = true;
break;
default:
diff --git a/include/linux/objtool.h b/include/linux/objtool.h
index 62c54ffbeeaa..9ac3df3fccf0 100644
--- a/include/linux/objtool.h
+++ b/include/linux/objtool.h
@@ -15,6 +15,7 @@ struct unwind_hint {
s16 sp_offset;
u8 sp_reg;
u8 type;
+ u8 signal;
u8 end;
};
#endif
@@ -49,7 +50,7 @@ struct unwind_hint {
#ifndef __ASSEMBLY__
-#define UNWIND_HINT(sp_reg, sp_offset, type, end) \
+#define UNWIND_HINT(sp_reg, sp_offset, type, signal, end) \
"987: \n\t" \
".pushsection .discard.unwind_hints\n\t" \
/* struct unwind_hint */ \
@@ -57,6 +58,7 @@ struct unwind_hint {
".short " __stringify(sp_offset) "\n\t" \
".byte " __stringify(sp_reg) "\n\t" \
".byte " __stringify(type) "\n\t" \
+ ".byte " __stringify(signal) "\n\t" \
".byte " __stringify(end) "\n\t" \
".balign 4 \n\t" \
".popsection\n\t"
@@ -129,7 +131,7 @@ struct unwind_hint {
* the debuginfo as necessary. It will also warn if it sees any
* inconsistencies.
*/
-.macro UNWIND_HINT type:req sp_reg=0 sp_offset=0 end=0
+.macro UNWIND_HINT type:req sp_reg=0 sp_offset=0 signal=0 end=0
.Lunwind_hint_ip_\@:
.pushsection .discard.unwind_hints
/* struct unwind_hint */
@@ -137,6 +139,7 @@ struct unwind_hint {
.short \sp_offset
.byte \sp_reg
.byte \type
+ .byte \signal
.byte \end
.balign 4
.popsection
@@ -174,7 +177,7 @@ struct unwind_hint {
#ifndef __ASSEMBLY__
-#define UNWIND_HINT(sp_reg, sp_offset, type, end) \
+#define UNWIND_HINT(sp_reg, sp_offset, type, signal, end) \
"\n\t"
#define STACK_FRAME_NON_STANDARD(func)
#define STACK_FRAME_NON_STANDARD_FP(func)
@@ -182,7 +185,7 @@ struct unwind_hint {
#define ASM_REACHABLE
#else
#define ANNOTATE_INTRA_FUNCTION_CALL
-.macro UNWIND_HINT type:req sp_reg=0 sp_offset=0 end=0
+.macro UNWIND_HINT type:req sp_reg=0 sp_offset=0 signal=0 end=0
.endm
.macro STACK_FRAME_NON_STANDARD func:req
.endm
diff --git a/tools/arch/x86/include/asm/orc_types.h b/tools/arch/x86/include/asm/orc_types.h
index 5a2baf28a1dc..1343a62106de 100644
--- a/tools/arch/x86/include/asm/orc_types.h
+++ b/tools/arch/x86/include/asm/orc_types.h
@@ -57,12 +57,14 @@ struct orc_entry {
unsigned sp_reg:4;
unsigned bp_reg:4;
unsigned type:2;
+ unsigned signal:1;
unsigned end:1;
#elif defined(__BIG_ENDIAN_BITFIELD)
unsigned bp_reg:4;
unsigned sp_reg:4;
- unsigned unused:5;
+ unsigned unused:4;
unsigned end:1;
+ unsigned signal:1;
unsigned type:2;
#endif
} __packed;
diff --git a/tools/include/linux/objtool.h b/tools/include/linux/objtool.h
index 62c54ffbeeaa..9ac3df3fccf0 100644
--- a/tools/include/linux/objtool.h
+++ b/tools/include/linux/objtool.h
@@ -15,6 +15,7 @@ struct unwind_hint {
s16 sp_offset;
u8 sp_reg;
u8 type;
+ u8 signal;
u8 end;
};
#endif
@@ -49,7 +50,7 @@ struct unwind_hint {
#ifndef __ASSEMBLY__
-#define UNWIND_HINT(sp_reg, sp_offset, type, end) \
+#define UNWIND_HINT(sp_reg, sp_offset, type, signal, end) \
"987: \n\t" \
".pushsection .discard.unwind_hints\n\t" \
/* struct unwind_hint */ \
@@ -57,6 +58,7 @@ struct unwind_hint {
".short " __stringify(sp_offset) "\n\t" \
".byte " __stringify(sp_reg) "\n\t" \
".byte " __stringify(type) "\n\t" \
+ ".byte " __stringify(signal) "\n\t" \
".byte " __stringify(end) "\n\t" \
".balign 4 \n\t" \
".popsection\n\t"
@@ -129,7 +131,7 @@ struct unwind_hint {
* the debuginfo as necessary. It will also warn if it sees any
* inconsistencies.
*/
-.macro UNWIND_HINT type:req sp_reg=0 sp_offset=0 end=0
+.macro UNWIND_HINT type:req sp_reg=0 sp_offset=0 signal=0 end=0
.Lunwind_hint_ip_\@:
.pushsection .discard.unwind_hints
/* struct unwind_hint */
@@ -137,6 +139,7 @@ struct unwind_hint {
.short \sp_offset
.byte \sp_reg
.byte \type
+ .byte \signal
.byte \end
.balign 4
.popsection
@@ -174,7 +177,7 @@ struct unwind_hint {
#ifndef __ASSEMBLY__
-#define UNWIND_HINT(sp_reg, sp_offset, type, end) \
+#define UNWIND_HINT(sp_reg, sp_offset, type, signal, end) \
"\n\t"
#define STACK_FRAME_NON_STANDARD(func)
#define STACK_FRAME_NON_STANDARD_FP(func)
@@ -182,7 +185,7 @@ struct unwind_hint {
#define ASM_REACHABLE
#else
#define ANNOTATE_INTRA_FUNCTION_CALL
-.macro UNWIND_HINT type:req sp_reg=0 sp_offset=0 end=0
+.macro UNWIND_HINT type:req sp_reg=0 sp_offset=0 signal=0 end=0
.endm
.macro STACK_FRAME_NON_STANDARD func:req
.endm
diff --git a/tools/objtool/orc_dump.c b/tools/objtool/orc_dump.c
index 4f1211fec82c..2d8ebdcd1db3 100644
--- a/tools/objtool/orc_dump.c
+++ b/tools/objtool/orc_dump.c
@@ -211,8 +211,8 @@ int orc_dump(const char *_objname)
print_reg(orc[i].bp_reg, bswap_if_needed(&dummy_elf, orc[i].bp_offset));
- printf(" type:%s end:%d\n",
- orc_type_name(orc[i].type), orc[i].end);
+ printf(" type:%s signal:%d end:%d\n",
+ orc_type_name(orc[i].type), orc[i].signal, orc[i].end);
}
elf_end(elf);