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RISC-V: Fix _sbrk, it's failed only when return value is -1.

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Signed-off-by: Kito Cheng <kito.cheng@gmail.com>
This commit is contained in:
Denis Ivanov
2018-07-06 19:03:23 +03:00
committed by Corinna Vinschen
parent 258996b696
commit 9e032fd939
2 changed files with 12 additions and 7 deletions
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8
libgloss/riscv/sys_sbrk.c
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@@ -41,14 +41,14 @@ _sbrk(ptrdiff_t incr)
if (heap_end == 0)
{
long brk = syscall_errno (SYS_brk, 0, 0, 0, 0, 0, 0);
long brk = __internal_syscall (SYS_brk, 0, 0, 0, 0, 0, 0);
if (brk == -1)
return (void *)-1;
return (void *)__syscall_error (-ENOMEM);
heap_end = brk;
}
if (syscall_errno (SYS_brk, heap_end + incr, 0, 0, 0, 0, 0) != heap_end + incr)
return (void *)-1;
if (__internal_syscall (SYS_brk, heap_end + incr, 0, 0, 0, 0, 0) != heap_end + incr)
return (void *)__syscall_error (-ENOMEM);
heap_end += incr;
return (void *)(heap_end - incr);