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| author | John David Anglin <danglin@gcc.gnu.org> | 2023-04-05 14:44:54 +0000 |
|---|---|---|
| committer | John David Anglin <danglin@gcc.gnu.org> | 2023-04-05 14:44:54 +0000 |
| commit | ddb0f66e6c1e846bdc217075c9a770bfd0b01970 (patch) | |
| tree | ceb799eff1ddcc8225f9ca97d832f03d88461cbc | |
| parent | f0f372fab3e70622a4ea6fe4073991e1bb506e4e (diff) | |
| download | gcc-ddb0f66e6c1e846bdc217075c9a770bfd0b01970.zip gcc-ddb0f66e6c1e846bdc217075c9a770bfd0b01970.tar.gz gcc-ddb0f66e6c1e846bdc217075c9a770bfd0b01970.tar.bz2 | |
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.
| -rw-r--r-- | libgcc/config/pa/milli64.S | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/libgcc/config/pa/milli64.S b/libgcc/config/pa/milli64.S index 2316f79..e1c84f4 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 |