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| author | Bobby Bingham <koorogi@koorogi.info> | 2013-10-05 05:13:18 -0500 |
|---|---|---|
| committer | Bobby Bingham <koorogi@koorogi.info> | 2014-02-23 16:15:54 -0600 |
| commit | 3a3c813e08d808224c12fd0e9104aeff7c45c9a7 (patch) | |
| tree | 508b28c42438615d711afcb9b44d7b0e0842f28d /src/thread/superh | |
| parent | d05aaedaabd4f5472c233dbbd1ff4bb9c9c99794 (diff) | |
| download | musl-3a3c813e08d808224c12fd0e9104aeff7c45c9a7.tar.gz musl-3a3c813e08d808224c12fd0e9104aeff7c45c9a7.tar.xz musl-3a3c813e08d808224c12fd0e9104aeff7c45c9a7.zip | |
superh port
Diffstat (limited to 'src/thread/superh')
| -rw-r--r-- | src/thread/superh/__set_thread_area.s | 5 | ||||
| -rw-r--r-- | src/thread/superh/__unmapself.s | 22 | ||||
| -rw-r--r-- | src/thread/superh/clone.s | 47 | ||||
| -rw-r--r-- | src/thread/superh/syscall_cp.s | 39 |
4 files changed, 113 insertions, 0 deletions
diff --git a/src/thread/superh/__set_thread_area.s b/src/thread/superh/__set_thread_area.s new file mode 100644 index 00000000..53887e64 --- /dev/null +++ b/src/thread/superh/__set_thread_area.s @@ -0,0 +1,5 @@ +.global __set_thread_area +.type __set_thread_area, @function +__set_thread_area: + rts + ldc r4, gbr diff --git a/src/thread/superh/__unmapself.s b/src/thread/superh/__unmapself.s new file mode 100644 index 00000000..b34c3c80 --- /dev/null +++ b/src/thread/superh/__unmapself.s @@ -0,0 +1,22 @@ +.text +.global __unmapself +.type __unmapself, @function +__unmapself: + mov #91, r3 ! SYS_munmap + trapa #18 + + or r0, r0 + or r0, r0 + or r0, r0 + or r0, r0 + or r0, r0 + + mov #1, r3 ! SYS_exit + mov #0, r4 + trapa #17 + + or r0, r0 + or r0, r0 + or r0, r0 + or r0, r0 + or r0, r0 diff --git a/src/thread/superh/clone.s b/src/thread/superh/clone.s new file mode 100644 index 00000000..d6c9184d --- /dev/null +++ b/src/thread/superh/clone.s @@ -0,0 +1,47 @@ +.text +.global __clone +.type __clone, @function +__clone: +! incoming: fn stack flags arg ptid tls ctid +! r4 r5 r6 r7 @r15 @(4,r15) @(8,r15) + + mov #-16, r0 + and r0, r5 + + mov r4, r1 ! r1 = fn + mov r7, r2 ! r2 = arg + + mov #120, r3 ! r3 = __NR_clone + mov r6, r4 ! r4 = flags + !mov r5, r5 ! r5 = stack + mov.l @r15, r6 ! r6 = ptid + mov.l @(8,r15), r7 ! r7 = ctid + mov.l @(4,r15), r0 ! r0 = tls + trapa #21 + + or r0, r0 + or r0, r0 + or r0, r0 + or r0, r0 + or r0, r0 + + cmp/eq #0, r0 + bt 1f + + ! we are the parent, return + rts + nop + +1: ! we are the child, call fn(arg) + jsr @r1 + mov r2, r4 + + mov #1, r3 ! __NR_exit + mov r0, r4 + trapa #17 + + or r0, r0 + or r0, r0 + or r0, r0 + or r0, r0 + or r0, r0 diff --git a/src/thread/superh/syscall_cp.s b/src/thread/superh/syscall_cp.s new file mode 100644 index 00000000..5677b9c0 --- /dev/null +++ b/src/thread/superh/syscall_cp.s @@ -0,0 +1,39 @@ +.text +.global __syscall_cp_asm +.type __syscall_cp_asm, @function +__syscall_cp_asm: + +.global __cp_begin +__cp_begin: + mov.l @r4, r4 + tst r4, r4 + bt 2f + + mov.l L1, r0 + braf r0 + nop +1: + +.align 2 +L1: .long __cancel@PLT-(1b-.) + +2: mov r5, r3 + mov r6, r4 + mov r7, r5 + mov.l @r15, r6 + mov.l @(4,r15), r7 + mov.l @(8,r15), r0 + mov.l @(12,r15), r1 + trapa #22 + +.global __cp_end +__cp_end: + ! work around hardware bug + or r0, r0 + or r0, r0 + or r0, r0 + or r0, r0 + or r0, r0 + + rts + nop |