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Fix setjmp for RISC-V:

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o The correct value for _JB_SIGMASK is 27.
o The storage size for double-precision floating
  point register is 8 bytes.

Submitted by:	"James Clarke" <jrtc4@cam.ac.uk>
Reviewed by:	markj@
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D16344
This commit is contained in:
Ruslan Bukin 2018-07-23 09:54:28 +00:00
parent 79449a9a7f
commit 8eca6e4855
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=336633
3 changed files with 53 additions and 53 deletions
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52
lib/libc/riscv/gen/_setjmp.S
View File

@ -63,19 +63,19 @@ ENTRY(_setjmp)
#if !defined(_STANDALONE) && defined(__riscv_float_abi_double)
/* Store the fpe registers */
fsd fs0, (0 * 16)(a0)
fsd fs1, (1 * 16)(a0)
fsd fs2, (2 * 16)(a0)
fsd fs3, (3 * 16)(a0)
fsd fs4, (4 * 16)(a0)
fsd fs5, (5 * 16)(a0)
fsd fs6, (6 * 16)(a0)
fsd fs7, (7 * 16)(a0)
fsd fs8, (8 * 16)(a0)
fsd fs9, (9 * 16)(a0)
fsd fs10, (10 * 16)(a0)
fsd fs11, (11 * 16)(a0)
addi a0, a0, (12 * 16)
fsd fs0, (0 * 8)(a0)
fsd fs1, (1 * 8)(a0)
fsd fs2, (2 * 8)(a0)
fsd fs3, (3 * 8)(a0)
fsd fs4, (4 * 8)(a0)
fsd fs5, (5 * 8)(a0)
fsd fs6, (6 * 8)(a0)
fsd fs7, (7 * 8)(a0)
fsd fs8, (8 * 8)(a0)
fsd fs9, (9 * 8)(a0)
fsd fs10, (10 * 8)(a0)
fsd fs11, (11 * 8)(a0)
addi a0, a0, (12 * 8)
#endif
/* Return value */
@ -116,19 +116,19 @@ ENTRY(_longjmp)
#if !defined(_STANDALONE) && defined(__riscv_float_abi_double)
/* Restore the fpe registers */
fld fs0, (0 * 16)(a0)
fld fs1, (1 * 16)(a0)
fld fs2, (2 * 16)(a0)
fld fs3, (3 * 16)(a0)
fld fs4, (4 * 16)(a0)
fld fs5, (5 * 16)(a0)
fld fs6, (6 * 16)(a0)
fld fs7, (7 * 16)(a0)
fld fs8, (8 * 16)(a0)
fld fs9, (9 * 16)(a0)
fld fs10, (10 * 16)(a0)
fld fs11, (11 * 16)(a0)
addi a0, a0, (12 * 16)
fld fs0, (0 * 8)(a0)
fld fs1, (1 * 8)(a0)
fld fs2, (2 * 8)(a0)
fld fs3, (3 * 8)(a0)
fld fs4, (4 * 8)(a0)
fld fs5, (5 * 8)(a0)
fld fs6, (6 * 8)(a0)
fld fs7, (7 * 8)(a0)
fld fs8, (8 * 8)(a0)
fld fs9, (9 * 8)(a0)
fld fs10, (10 * 8)(a0)
fld fs11, (11 * 8)(a0)
addi a0, a0, (12 * 8)
#endif
/* Load the return value */

52
lib/libc/riscv/gen/setjmp.S
View File

@ -77,19 +77,19 @@ ENTRY(setjmp)
#ifdef __riscv_float_abi_double
/* Store the fpe registers */
fsd fs0, (0 * 16)(a0)
fsd fs1, (1 * 16)(a0)
fsd fs2, (2 * 16)(a0)
fsd fs3, (3 * 16)(a0)
fsd fs4, (4 * 16)(a0)
fsd fs5, (5 * 16)(a0)
fsd fs6, (6 * 16)(a0)
fsd fs7, (7 * 16)(a0)
fsd fs8, (8 * 16)(a0)
fsd fs9, (9 * 16)(a0)
fsd fs10, (10 * 16)(a0)
fsd fs11, (11 * 16)(a0)
addi a0, a0, (12 * 16)
fsd fs0, (0 * 8)(a0)
fsd fs1, (1 * 8)(a0)
fsd fs2, (2 * 8)(a0)
fsd fs3, (3 * 8)(a0)
fsd fs4, (4 * 8)(a0)
fsd fs5, (5 * 8)(a0)
fsd fs6, (6 * 8)(a0)
fsd fs7, (7 * 8)(a0)
fsd fs8, (8 * 8)(a0)
fsd fs9, (9 * 8)(a0)
fsd fs10, (10 * 8)(a0)
fsd fs11, (11 * 8)(a0)
addi a0, a0, (12 * 8)
#endif
/* Return value */
@ -146,19 +146,19 @@ ENTRY(longjmp)
#ifdef __riscv_float_abi_double
/* Restore the fpe registers */
fld fs0, (0 * 16)(a0)
fld fs1, (1 * 16)(a0)
fld fs2, (2 * 16)(a0)
fld fs3, (3 * 16)(a0)
fld fs4, (4 * 16)(a0)
fld fs5, (5 * 16)(a0)
fld fs6, (6 * 16)(a0)
fld fs7, (7 * 16)(a0)
fld fs8, (8 * 16)(a0)
fld fs9, (9 * 16)(a0)
fld fs10, (10 * 16)(a0)
fld fs11, (11 * 16)(a0)
addi a0, a0, (12 * 16)
fld fs0, (0 * 8)(a0)
fld fs1, (1 * 8)(a0)
fld fs2, (2 * 8)(a0)
fld fs3, (3 * 8)(a0)
fld fs4, (4 * 8)(a0)
fld fs5, (5 * 8)(a0)
fld fs6, (6 * 8)(a0)
fld fs7, (7 * 8)(a0)
fld fs8, (8 * 8)(a0)
fld fs9, (9 * 8)(a0)
fld fs10, (10 * 8)(a0)
fld fs11, (11 * 8)(a0)
addi a0, a0, (12 * 8)
#endif
/* Load the return value */

2
sys/riscv/include/setjmp.h
View File

@ -40,7 +40,7 @@
#include <sys/cdefs.h>
#define _JBLEN 63 /* sp, ra, [f]s0-11, magic val, sigmask */
#define _JB_SIGMASK 21
#define _JB_SIGMASK 27
#ifdef __ASSEMBLER__
#define _JB_MAGIC__SETJMP 0xbe87fd8a2910af00