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ARM: Specify R7 as changed. 

* lib/linux/arm-mes-gcc/mini.c (_exit): Specify R7 as changed.
* lib/linux/arm-mes-gcc/syscall.c (_sys_call, _sys_call1, _sys_call2,
_sys_call3, _sys_call4): Specify R7 as changed.
This commit is contained in:
Danny Milosavljevic 2019-03-11 17:00:44 +01:00 committed by Jan Nieuwenhuizen
parent e5f326040d
commit 13fbd909d7
No known key found for this signature in database
GPG Key ID: F3C1A0D9C1D65273
2 changed files with 7 additions and 7 deletions
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2
lib/linux/arm-mes-gcc/mini.c
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@ -33,7 +33,7 @@ _exit (int code)
"swi $0\n\t"
: // no outputs "=" (r)
: "r" (code)
: "r0"//, "r7" // error: r7 cannot be used in asm here
: "r0", "r7"
);
// not reached
_exit (0);

12
lib/linux/arm-mes-gcc/syscall.c
View File

@ -32,7 +32,7 @@ _sys_call (long sys_call)
"mov %0, r0\n\t"
: "=r" (r)
: "r" (sys_call)
: "r0" // , "r7" // error: r7 cannot be used in asm here
: "r0", "r7"
);
if (r < 0)
{
@ -55,7 +55,7 @@ _sys_call1 (long sys_call, long one)
"mov %0, r0\n\t"
: "=r" (r)
: "r" (sys_call), "r" (one)
: "r0"
: "r0", "r7"
);
if (r < 0)
{
@ -79,7 +79,7 @@ _sys_call2 (long sys_call, long one, long two)
"mov %0, r0\n\t"
: "=r" (r)
: "r" (sys_call), "r" (one), "r" (two)
: "r0", "r1"
: "r0", "r1", "r7"
);
if (r < 0)
{
@ -104,7 +104,7 @@ _sys_call3 (long sys_call, long one, long two, long three)
"mov %0, r0\n\t"
: "=r" (r)
: "r" (sys_call), "r" (one), "r" (two), "r" (three)
: "r0", "r1", "r2"
: "r0", "r1", "r2", "r7"
);
if (r < 0)
{
@ -130,7 +130,7 @@ _sys_call4 (long sys_call, long one, long two, long three, long four)
"mov %0, r0\n\t"
: "=r" (r)
: "r" (sys_call), "r" (one), "r" (two), "r" (three), "r" (four)
: "r0", "r1", "r2", "r3"
: "r0", "r1", "r2", "r3", "r7"
);
if (r < 0)
{
@ -158,7 +158,7 @@ _sys_call6 (long sys_call, long one, long two, long three, long four, long five,
"mov %0, r0\n\t"
: "=r" (r)
: "r" (sys_call), "r" (one), "r" (two), "r" (three), "r" (four), "r" (five), "r" (six)
: "r0", "r1", "r2", "r3", "r4", "r5"
: "r0", "r1", "r2", "r3", "r4", "r5" //, "r7" FIXME
);
return r;
}