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| author | Austin Foxley <austinf@cetoncorp.com> | 2009-10-17 13:23:11 -0700 |
|---|---|---|
| committer | Austin Foxley <austinf@cetoncorp.com> | 2009-10-17 13:23:11 -0700 |
| commit | e58798e107d652644629a1daaa95d76430808d53 (patch) | |
| tree | f02c3778cf6e3df14f1c0d499c9f660af476ed99 /libc/sysdeps/linux/arm/clone.S | |
| parent | b04c2ba52317dab5b2e4172d2f8678b1025780d8 (diff) | |
| download | uClibc-alpine-e58798e107d652644629a1daaa95d76430808d53.tar.bz2 uClibc-alpine-e58798e107d652644629a1daaa95d76430808d53.tar.xz | |
arm specific bits needed for nptl
* SAVE_PID, RESTORE_PID in vfork.S
* clone.S tweaks to allow for the pid to be reset
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
Diffstat (limited to 'libc/sysdeps/linux/arm/clone.S')
| -rw-r--r-- | libc/sysdeps/linux/arm/clone.S | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/libc/sysdeps/linux/arm/clone.S b/libc/sysdeps/linux/arm/clone.S index d9483735d..fdc05b88b 100644 --- a/libc/sysdeps/linux/arm/clone.S +++ b/libc/sysdeps/linux/arm/clone.S @@ -30,12 +30,12 @@ /* int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg); */ .text -.global clone -.type clone,%function +.global __clone +.type __clone,%function .align 2 #if defined(THUMB1_ONLY) .thumb_func -clone: +__clone: @ sanity check args cmp r0, #0 beq __einval @@ -52,9 +52,15 @@ clone: @ get flags mov r0, r2 @ new sp is already in r1 + @ load remaining arguments off the stack + stmfd sp!, {r4} + ldr r2, [sp, #4] + ldr r3, [sp, #8] + ldr r4, [sp, #12] DO_CALL (clone) movs a1, a1 blt __error + ldmnefd sp!, {r4} beq 1f bx lr 1: @@ -80,7 +86,7 @@ __error: POP_RET .pool #else -clone: +__clone: @ sanity check args cmp r0, #0 IT(te, ne) @@ -98,9 +104,15 @@ clone: @ get flags mov r0, r2 @ new sp is already in r1 + @ load remaining arguments off the stack + stmfd sp!, {r4} + ldr r2, [sp, #4] + ldr r3, [sp, #8] + ldr r4, [sp, #12] DO_CALL (clone) movs a1, a1 blt __error + ldmnefd sp!, {r4} IT(t, ne) #if defined(__USE_BX__) bxne lr @@ -120,6 +132,7 @@ __error: b __syscall_error #endif -.size clone,.-clone +.size __clone,.-__clone +weak_alias(__clone, clone) #endif |