Re: [PATCH 1/2] Fix for Haiku

[Philippe Mathieu-Daudé]

On 7/4/21 11:03 AM, Philippe Mathieu-Daudé wrote:
> On 7/4/21 12:06 AM, Richard Zak wrote:
>> For MIPS (all sub-targets, 64-bit and EL) & xtensa(eb), the compiler
>> complains about running out of memory. Best I can see, that's not what
>> actually happens, but that's the error message. I was going to
>> investigate this later, but this was the error which was causing the
>> test with the Haiku VM with that corresponding make target. My desktop &
>> laptop have 64 GB, and I'm pretty sure it didn't get to that point.
>>
>>
/boot/system/develop/tools/bin/../lib/gcc/x86_64-unknown-haiku/8.3.0/../../../../x86_64-unknown-haiku/bin/ld:
>> final link failed: memory exhausted

> See how Haiku handles POSIX errno:
> 
> https://github.com/haiku/haiku/blob/master/headers/os/support/Errors.h
> 
> #define B_GENERAL_ERROR_BASE   INT_MIN
> 
> #define B_POSIX_ERROR_BASE     (B_GENERAL_ERROR_BASE + 0x7000)
> 
> #define B_POSIX_ENOMEM  B_TO_POSIX_ERROR(B_POSIX_ERROR_BASE + 0)
> #define E2BIG           B_TO_POSIX_ERROR(B_POSIX_ERROR_BASE + 1)
> #define ECHILD          B_TO_POSIX_ERROR(B_POSIX_ERROR_BASE + 2)
> ...
> 

Same problem with Xtensa:

static uint32_t errno_h2g(int host_errno)
{
    static const uint32_t guest_errno[] = {
        [EPERM]         = TARGET_EPERM,
        [ENOENT]        = TARGET_ENOENT,
        [ESRCH]         = TARGET_ESRCH,
        [EINTR]         = TARGET_EINTR,
        [EIO]           = TARGET_EIO,
        [ENXIO]         = TARGET_ENXIO,
        [E2BIG]         = TARGET_E2BIG,
        [ENOEXEC]       = TARGET_ENOEXEC,
...