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| author | Rich Felker <dalias@aerifal.cx> | 2016-04-18 05:19:13 +0000 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2016-04-18 05:19:13 +0000 |
| commit | 5972c4a4113e2a4de5edf519faf15296ae1eb3ed (patch) | |
| tree | 6e808f23bb96a9b8a82eb505e2a719f4f42a758d /src/thread/mipsn32 | |
| parent | 6d99ad91e869aab35a4d76d34c3c9eaf29482bad (diff) | |
| download | musl-5972c4a4113e2a4de5edf519faf15296ae1eb3ed.tar.gz musl-5972c4a4113e2a4de5edf519faf15296ae1eb3ed.tar.xz musl-5972c4a4113e2a4de5edf519faf15296ae1eb3ed.zip | |
add mips n32 port (ILP32 ABI for mips64)
based on patch submitted by Jaydeep Patil, with minor changes.
Diffstat (limited to 'src/thread/mipsn32')
| -rw-r--r-- | src/thread/mipsn32/__unmapself.s | 9 | ||||
| -rw-r--r-- | src/thread/mipsn32/clone.s | 30 | ||||
| -rw-r--r-- | src/thread/mipsn32/syscall_cp.s | 51 |
3 files changed, 90 insertions, 0 deletions
diff --git a/src/thread/mipsn32/__unmapself.s b/src/thread/mipsn32/__unmapself.s new file mode 100644 index 00000000..4b032e5e --- /dev/null +++ b/src/thread/mipsn32/__unmapself.s @@ -0,0 +1,9 @@ +.set noreorder +.global __unmapself +.type __unmapself,@function +__unmapself: + li $2, 6011 + syscall + li $4, 0 + li $2, 6058 + syscall diff --git a/src/thread/mipsn32/clone.s b/src/thread/mipsn32/clone.s new file mode 100644 index 00000000..51035852 --- /dev/null +++ b/src/thread/mipsn32/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 + subu $5, $5, 16 + sw $4, 0($5) # save function pointer + sw $7, 4($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, 6055 + syscall + beq $7, $0, 1f + nop + jr $ra + subu $2, $0, $2 +1: beq $2, $0, 1f + nop + jr $ra + nop +1: lw $25, 0($sp) # function pointer + lw $4, 4($sp) # argument pointer + jr $25 # call the user's function + nop diff --git a/src/thread/mipsn32/syscall_cp.s b/src/thread/mipsn32/syscall_cp.s new file mode 100644 index 00000000..e85615bc --- /dev/null +++ b/src/thread/mipsn32/syscall_cp.s @@ -0,0 +1,51 @@ +.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 + lw $10, 0($sp) + syscall +__cp_end: + beq $7, $0, 1f + nop + subu $2, $0, $2 +1: jr $ra + nop + + # if cancellation flag is 1 then call __cancel +__cp_cancel: + move $2, $ra + bal 1f + nop +__cp_cancel_data: + .gpword __cp_cancel_data + .gpword __cancel +1: lw $3, 0($ra) + subu $3, $ra, $3 + lw $25, 4($ra) + addu $25, $25, $3 + jr $25 + move $ra, $2 |