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ARM: Fix clone build for ARMv4

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ARMv4 does not have the blx instruction, so use the BLX macro which
handles abstracting this for us.

Build tested for armv7, armv4t and armv4.

ports/ChangeLog.arm:

2014-01-24  Will Newton  <will.newton@linaro.org>

	[BZ #16499]
	* sysdeps/unix/sysv/linux/arm/clone.S: Use BLX macro instead
	of blx instruction directly.
This commit is contained in:
Will Newton 2014-01-23 11:11:24 +00:00
parent 5d41dadf31
commit 47590bce28
2 changed files with 7 additions and 7 deletions
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6
ports/ChangeLog.arm
View File

@ -1,3 +1,9 @@
2014-01-24 Will Newton <will.newton@linaro.org>
[BZ #16499]
* sysdeps/unix/sysv/linux/arm/clone.S: Use BLX macro instead
of blx instruction directly.
2014-01-14 Will Newton <will.newton@linaro.org>
* sysdeps/arm/__longjmp.S: Don't apply pointer encryption

8
ports/sysdeps/unix/sysv/linux/arm/clone.S
View File

@ -88,14 +88,8 @@ PSEUDO_END (__clone)
#endif
@ pick the function arg and call address off the stack and execute
ldr r0, [sp, #4]
#if defined(__ARM_ARCH_4T__) && defined(__THUMB_INTERWORK__)
ldr ip, [sp], #8
mov lr, pc
bx ip
#else
ldr lr, [sp], #8
blx lr
#endif
BLX (ip)
@ and we are done, passing the return value through r0
b PLTJMP(HIDDEN_JUMPTARGET(_exit))