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Support MIPS 64bits for loongson 3A4000/3B3000. v5.0.34

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winlin 2022-08-06 13:03:45 +08:00
parent aba6667357
commit 1589858cb0
16 changed files with 543 additions and 185 deletions
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80
trunk/3rdparty/st-srs/md_linux.S vendored
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@ -433,9 +433,87 @@
#elif defined(__mips64)
/****************************************************************/
/* For MIPS64, see https://s3-eu-west-1.amazonaws.com/downloads-mips/documents/MIPS_Architecture_MIPS64_InstructionSet_%20AFP_P_MD00087_06.05.pdf */
/*
* Internal __jmp_buf layout
*/
#define JB_SP 0 /* Stack pointer */
#define JB_RA 11 /* Return address */
#define JB_GP 1 /* Global pointer */
#define JB_S0 3 /* S0-S7, Saved temporaries */
#define JB_S1 4 /* S0-S7, Saved temporaries */
#define JB_S2 5 /* S0-S7, Saved temporaries */
#define JB_S3 6 /* S0-S7, Saved temporaries */
#define JB_S4 7 /* S0-S7, Saved temporaries */
#define JB_S5 8 /* S0-S7, Saved temporaries */
#define JB_S6 9 /* S0-S7, Saved temporaries */
#define JB_S7 10 /* S0-S7, Saved temporaries */
#define JB_FP 2 /* FP/S8 Frame pointer */
.file "md_linux.S"
.text
/* _st_md_cxt_save(__jmp_buf env) */ /* The env is $a0, https://en.wikipedia.org/wiki/MIPS_architecture#Calling_conventions */
.globl _st_md_cxt_save
.type _st_md_cxt_save, %function
.align 2
_st_md_cxt_save:
sd $sp, 0($a0) /* Save sp to env[0], *(long*)($a0+ 0) =sp */
sd $ra, 8($a0) /* Save ra to env[1], *(long*)($a0+ 8)=ra, the return address, https://chortle.ccsu.edu/AssemblyTutorial/Chapter-26/ass26_4.html */
sd $gp, 16($a0) /* Save gp to env[2], *(long*)($a0+16) =gp */
sd $s0, 24($a0) /* Save s0 to env[3], *(long*)($a0+24)=s0 */
sd $s1, 32($a0) /* Save s1 to env[4], *(long*)($a0+32)=s1 */
sd $s2, 40($a0) /* Save s2 to env[5], *(long*)($a0+40)=s2 */
sd $s3, 48($a0) /* Save s3 to env[6], *(long*)($a0+48)=s3 */
sd $s4, 56($a0) /* Save s4 to env[7], *(long*)($a0+56)=s4 */
sd $s5, 64($a0) /* Save s5 to env[8], *(long*)($a0+64)=s5 */
sd $s6, 72($a0) /* Save s6 to env[9], *(long*)($a0+72)=s6 */
sd $s7, 80($a0) /* Save s7 to env[10], *(long*)($a0+80)=s7 */
sd $fp, 88($a0) /* Save fp to env[11], *(long*)($a0+88) =fp */
li $v0, 0 /* Set return value to 0 */
jr $ra /* Return */
.size _st_md_cxt_save, .-_st_md_cxt_save
/****************************************************************/
/* _st_md_cxt_restore(__jmp_buf env, int val) */
.globl _st_md_cxt_restore
.type _st_md_cxt_restore, %function
.align 2
_st_md_cxt_restore:
ld $sp, 0($a0) /* Load sp from env[0], sp=*(long*)($a0+ 0) */
ld $ra, 8($a0) /* Load sp from env[1], ra=*(long*)($a0+ 8), the saved return address */
ld $gp, 16($a0) /* Load sp from env[2], gp=*(long*)($a0+16) */
ld $s0, 24($a0) /* Load sp from env[3], s0=*(long*)($a0+24) */
ld $s1, 32($a0) /* Load sp from env[4], s1=*(long*)($a0+32) */
ld $s2, 40($a0) /* Load sp from env[5], s2=*(long*)($a0+40) */
ld $s3, 48($a0) /* Load sp from env[6], s3=*(long*)($a0+48) */
ld $s4, 56($a0) /* Load sp from env[7], s4=*(long*)($a0+56) */
ld $s5, 64($a0) /* Load sp from env[8], s5=*(long*)($a0+64) */
ld $s6, 72($a0) /* Load sp from env[9], s6=*(long*)($a0+72) */
ld $s7, 80($a0) /* Load sp from env[10], s7=*(long*)($a0+80) */
ld $fp, 88($a0) /* Load sp from env[2], fp=*(long*)($a0+88) */
li $v0, 1 /* Set return value to 1 */
jr $ra /* Return to the saved return address */
.size _st_md_cxt_restore, .-_st_md_cxt_restore
/****************************************************************/
#elif defined(__mips__)
/****************************************************************/
/* For MIPS32, see https://s3-eu-west-1.amazonaws.com/downloads-mips/documents/MD00565-2B-MIPS32-QRC-01.01.pdf */
/*
* Internal __jmp_buf layout
@ -513,7 +591,7 @@
#elif defined(__loongarch__)
#elif defined(__loongarch64)
/****************************************************************/