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| author | Rich Felker <dalias@aerifal.cx> | 2016-03-06 17:41:56 +0000 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2016-03-06 17:41:56 +0000 |
| commit | 83933573aff71a5d178ab71912f177d2d844e63e (patch) | |
| tree | 3c7057d0c83c0030b8a6c0405f1b2797fbbcf450 /src/thread/mips64 | |
| parent | 71392a91c333d47b6b3c8f99c897e3b5a7eb6d58 (diff) | |
| download | musl-83933573aff71a5d178ab71912f177d2d844e63e.tar.gz musl-83933573aff71a5d178ab71912f177d2d844e63e.tar.xz musl-83933573aff71a5d178ab71912f177d2d844e63e.zip | |
add mips64 port
patch by Mahesh Bodapati and Jaydeep Patil of Imagination Technologies.
Diffstat (limited to 'src/thread/mips64')
| -rw-r--r-- | src/thread/mips64/__unmapself.s | 9 | ||||
| -rw-r--r-- | src/thread/mips64/clone.s | 30 | ||||
| -rw-r--r-- | src/thread/mips64/syscall_cp.s | 52 |
3 files changed, 91 insertions, 0 deletions
diff --git a/src/thread/mips64/__unmapself.s b/src/thread/mips64/__unmapself.s new file mode 100644 index 00000000..f6795cda --- /dev/null +++ b/src/thread/mips64/__unmapself.s @@ -0,0 +1,9 @@ +.set noreorder +.global __unmapself +.type __unmapself, @function +__unmapself: + li $2, 5011 + syscall + li $4, 0 + li $2, 5058 + syscall diff --git a/src/thread/mips64/clone.s b/src/thread/mips64/clone.s new file mode 100644 index 00000000..229d2677 --- /dev/null +++ b/src/thread/mips64/clone.s @@ -0,0 +1,30 @@ +.set noreorder +.global __clone +.type __clone,@function +__clone: + # Save function pointer and argument pointer on new thread stack + and $5, $5, -16 # aligning stack to double word + dsubu $5, $5, 16 + sd $4, 0($5) # save function pointer + sd $7, 8($5) # save argument pointer + + # Shuffle (fn,sp,fl,arg,ptid,tls,ctid) to (fl,sp,ptid,tls,ctid) + # sys_clone(u64 flags, u64 ustack_base, u64 parent_tidptr, u64 child_tidptr, u64 tls) + move $4, $6 + move $6, $8 + move $7, $9 + move $8, $10 + li $2, 5055 + syscall + beq $7, $0, 1f + nop + jr $ra + dsubu $2, $0, $2 +1: beq $2, $0, 1f + nop + jr $ra + nop +1: ld $25, 0($sp) # function pointer + ld $4, 8($sp) # argument pointer + jr $25 # call the user's function + nop diff --git a/src/thread/mips64/syscall_cp.s b/src/thread/mips64/syscall_cp.s new file mode 100644 index 00000000..0d4ede76 --- /dev/null +++ b/src/thread/mips64/syscall_cp.s @@ -0,0 +1,52 @@ +.set noreorder +.global __cp_begin +.hidden __cp_begin +.type __cp_begin,@function +.global __cp_end +.hidden __cp_end +.type __cp_end,@function +.global __cp_cancel +.hidden __cp_cancel +.type __cp_cancel,@function +.global __cp_cancel_data +.hidden __cp_cancel_data +.type __cp_cancel_data,@function +.hidden __cancel +.global __syscall_cp_asm +.hidden __syscall_cp_asm +.type __syscall_cp_asm,@function +__syscall_cp_asm: +__cp_begin: + lw $4, 0($4) + bne $4, $0, __cp_cancel + move $2, $5 + move $4, $6 + move $5, $7 + move $6, $8 + move $7, $9 + move $8, $10 + move $9, $11 + ld $10, 0($sp) + syscall +__cp_end: + beq $7, $0, 1f + nop + dsubu $2, $0, $2 +1: jr $ra + nop + + # if cancellation flag is 1 then call __cancel +__cp_cancel: + move $2, $ra +.align 8 + bal 1f + nop +__cp_cancel_data: + .gpdword __cp_cancel_data + .gpdword __cancel +1: ld $3, ($ra) + dsubu $3, $ra, $3 + ld $25, 8($ra) + daddu $25, $25, $3 + jr $25 + move $ra, $2 |