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| author | Thomas Huth | 2021-07-06 10:18:22 +0200 |
|---|---|---|
| committer | Laurent Vivier | 2021-07-09 18:42:46 +0200 |
| commit | 3b51b506686f41dba55a0e9567c4d9a7ffb8632c (patch) | |
| tree | 421c3ea13441a53b2e5eecb300f38b152fa8b75d /target/xtensa | |
| parent | hw/virtio: Document *_should_notify() are called within rcu_read_lock() (diff) | |
| download | qemu-3b51b506686f41dba55a0e9567c4d9a7ffb8632c.tar.gz qemu-3b51b506686f41dba55a0e9567c4d9a7ffb8632c.tar.xz qemu-3b51b506686f41dba55a0e9567c4d9a7ffb8632c.zip | |
target/xtensa/xtensa-semi: Fix compilation problem on Haiku
The errno numbers are very large on Haiku, so the linking currently
fails there with a "final link failed: memory exhausted" error
message. We should not use the errno number as array indexes here,
thus convert the code to a switch-case statement instead. A clever
compiler should be able to optimize this code in a similar way
anway.
Reported-by: Richard Zak <richard.j.zak@gmail.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210706081822.1316551-1-thuth@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Diffstat (limited to 'target/xtensa')
| -rw-r--r-- | target/xtensa/xtensa-semi.c | 84 |
1 files changed, 39 insertions, 45 deletions
diff --git a/target/xtensa/xtensa-semi.c b/target/xtensa/xtensa-semi.c index 79f2b043f2..fa21b7e11f 100644 --- a/target/xtensa/xtensa-semi.c +++ b/target/xtensa/xtensa-semi.c @@ -95,59 +95,53 @@ enum { 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, - [EBADF] = TARGET_EBADF, - [ECHILD] = TARGET_ECHILD, - [EAGAIN] = TARGET_EAGAIN, - [ENOMEM] = TARGET_ENOMEM, - [EACCES] = TARGET_EACCES, - [EFAULT] = TARGET_EFAULT, + switch (host_errno) { + case 0: return 0; + case EPERM: return TARGET_EPERM; + case ENOENT: return TARGET_ENOENT; + case ESRCH: return TARGET_ESRCH; + case EINTR: return TARGET_EINTR; + case EIO: return TARGET_EIO; + case ENXIO: return TARGET_ENXIO; + case E2BIG: return TARGET_E2BIG; + case ENOEXEC: return TARGET_ENOEXEC; + case EBADF: return TARGET_EBADF; + case ECHILD: return TARGET_ECHILD; + case EAGAIN: return TARGET_EAGAIN; + case ENOMEM: return TARGET_ENOMEM; + case EACCES: return TARGET_EACCES; + case EFAULT: return TARGET_EFAULT; #ifdef ENOTBLK - [ENOTBLK] = TARGET_ENOTBLK, + case ENOTBLK: return TARGET_ENOTBLK; #endif - [EBUSY] = TARGET_EBUSY, - [EEXIST] = TARGET_EEXIST, - [EXDEV] = TARGET_EXDEV, - [ENODEV] = TARGET_ENODEV, - [ENOTDIR] = TARGET_ENOTDIR, - [EISDIR] = TARGET_EISDIR, - [EINVAL] = TARGET_EINVAL, - [ENFILE] = TARGET_ENFILE, - [EMFILE] = TARGET_EMFILE, - [ENOTTY] = TARGET_ENOTTY, + case EBUSY: return TARGET_EBUSY; + case EEXIST: return TARGET_EEXIST; + case EXDEV: return TARGET_EXDEV; + case ENODEV: return TARGET_ENODEV; + case ENOTDIR: return TARGET_ENOTDIR; + case EISDIR: return TARGET_EISDIR; + case EINVAL: return TARGET_EINVAL; + case ENFILE: return TARGET_ENFILE; + case EMFILE: return TARGET_EMFILE; + case ENOTTY: return TARGET_ENOTTY; #ifdef ETXTBSY - [ETXTBSY] = TARGET_ETXTBSY, + case ETXTBSY: return TARGET_ETXTBSY; #endif - [EFBIG] = TARGET_EFBIG, - [ENOSPC] = TARGET_ENOSPC, - [ESPIPE] = TARGET_ESPIPE, - [EROFS] = TARGET_EROFS, - [EMLINK] = TARGET_EMLINK, - [EPIPE] = TARGET_EPIPE, - [EDOM] = TARGET_EDOM, - [ERANGE] = TARGET_ERANGE, - [ENOSYS] = TARGET_ENOSYS, + case EFBIG: return TARGET_EFBIG; + case ENOSPC: return TARGET_ENOSPC; + case ESPIPE: return TARGET_ESPIPE; + case EROFS: return TARGET_EROFS; + case EMLINK: return TARGET_EMLINK; + case EPIPE: return TARGET_EPIPE; + case EDOM: return TARGET_EDOM; + case ERANGE: return TARGET_ERANGE; + case ENOSYS: return TARGET_ENOSYS; #ifdef ELOOP - [ELOOP] = TARGET_ELOOP, + case ELOOP: return TARGET_ELOOP; #endif }; - if (host_errno == 0) { - return 0; - } else if (host_errno > 0 && host_errno < ARRAY_SIZE(guest_errno) && - guest_errno[host_errno]) { - return guest_errno[host_errno]; - } else { - return TARGET_EINVAL; - } + return TARGET_EINVAL; } typedef struct XtensaSimConsole { |