glibc

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Adhemerval Zanella e1766196b6 microblaze: Avoid clobbering register parameters in syscall The microblaze INTERNAL_SYSCALL macro might clobber the register parameter if the argument itself might clobber any register (a function call for instance). This patch fixes it by using temporary variables for the expressions between the register assignments (as indicated by GCC documentation, 6.47.5.2 Specifying Registers for Local Variables). It is similar to the fix done for MIPS (bug 25523). Checked with microblaze-linux-gnu and microblazeel-linux-gnu build. (cherry picked from commit `6cc8fc7c15`)	2020-02-16 15:16:10 +01:00
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linux	microblaze: Avoid clobbering register parameters in syscall	2020-02-16 15:16:10 +01:00

Adhemerval Zanella e1766196b6 microblaze: Avoid clobbering register parameters in syscall

The microblaze INTERNAL_SYSCALL macro might clobber the register
parameter if the argument itself might clobber any register (a function
call for instance).

This patch fixes it by using temporary variables for the expressions
between the register assignments (as indicated by GCC documentation,
6.47.5.2 Specifying Registers for Local Variables).

It is similar to the fix done for MIPS (bug 25523).

Checked with microblaze-linux-gnu and microblazeel-linux-gnu build.

(cherry picked from commit 6cc8fc7c15)

2020-02-16 15:16:10 +01:00

linux microblaze: Avoid clobbering register parameters in syscall 2020-02-16 15:16:10 +01:00