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[committed] hppa: Add assember CFI directives to millicode division and remainder routines

Message ID ZC2LJcmv8Gd2X0Q0@mx3210.localdomain
State Repeat Merge
Headers
Series [committed] hppa: Add assember CFI directives to millicode division and remainder routines |

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Commit Message

John David Anglin April 5, 2023, 2:52 p.m. UTC 
  Committed to trunk after testing on hppa-unknown-linux-gnu.

Dave
---

Add assember CFI directives to millicode division and remainder routines.

The millicode division and remainder routines trap division by zero.
The unwinder needs these directives to unwind divide by zero traps.

2023-04-05  John David Anglin  <danglin@gcc.gnu.org>

libgcc/ChangeLog:

	PR target/109374
	* config/pa/milli64.S (RETURN_COLUMN): Define.
	($$divI): Add CFI directives.
	($$divU): Likewise.
	($$remI): Likewise.
	($$remU): Likewise.
diff mbox series

Patch

diff --git a/libgcc/config/pa/milli64.S b/libgcc/config/pa/milli64.S
index 2316f797354..e1c84f48d25 100644
--- a/libgcc/config/pa/milli64.S
+++ b/libgcc/config/pa/milli64.S
@@ -105,8 +105,10 @@  sar:	.reg	%cr11	/* Shift Amount Register */
 rp:	.reg    r2	/* return pointer */
 #ifdef pa64
 mrp:	.reg	r2 	/* millicode return pointer */
+#define RETURN_COLUMN	2
 #else
 mrp:	.reg	r31	/* millicode return pointer */
+#define RETURN_COLUMN	31
 #endif
 ret0:	.reg    r28	/* return value */
 ret1:	.reg    r29	/* return value (high part of double) */
@@ -313,6 +315,8 @@  RDEFINE(temp1,arg0)
 	.import $$divI_15,millicode
 	.export $$divI,millicode
 	.export	$$divoI,millicode
+	.cfi_startproc
+	.cfi_return_column RETURN_COLUMN
 	.proc
 	.callinfo	millicode
 	.entry
@@ -484,6 +488,7 @@  LSYM(negative1)
 	addo	arg0,arg1,r0	/*  trap iff dividend==0x80000000 && divisor==-1 */
 	.exit
 	.procend
+	.cfi_endproc
 	.end
 #endif
 
@@ -543,6 +548,8 @@  RDEFINE(temp1,arg0)
 	.import $$divU_12,millicode
 	.import $$divU_14,millicode
 	.import $$divU_15,millicode
+	.cfi_startproc
+	.cfi_return_column RETURN_COLUMN
 	.proc
 	.callinfo	millicode
 	.entry
@@ -706,6 +713,7 @@  LSYM(big_divisor)
 	addc	r0,r0,retreg
 	.exit
 	.procend
+	.cfi_endproc
 	.end
 #endif
 
@@ -750,6 +758,8 @@  RDEFINE(retreg,ret1)
 
 	SUBSPA_MILLI
 	ATTR_MILLI
+	.cfi_startproc
+	.cfi_return_column RETURN_COLUMN
 	.proc
 	.callinfo millicode
 	.entry
@@ -875,6 +885,7 @@  LSYM(finish)
 	nop
 	.exit
 	.procend
+	.cfi_endproc
 #ifdef milliext
 	.origin 0x00000200
 #endif
@@ -922,6 +933,8 @@  RDEFINE(rmndr,ret1)	/*  r29 */
 	SUBSPA_MILLI
 	ATTR_MILLI
 	.export $$remU,millicode
+	.cfi_startproc
+	.cfi_return_column RETURN_COLUMN
 	.proc
 	.callinfo	millicode
 	.entry
@@ -1013,6 +1026,7 @@  LSYM(special_case)
 	nop
 	.exit
 	.procend
+	.cfi_endproc
 	.end
 #endif