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Make __mach_msg_destroy portable for x86_64

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We need to align on uintptr_t to make this work for x86_64,
otherwise things will go wrong when RPCs return errors.
Message-Id: <ZE3aPH7uCEDti47H@jupiter.tail36e24.ts.net>
This commit is contained in:
Flavio Cruz 2023-04-29 23:02:20 -04:00 committed by Samuel Thibault
parent 6639cc1002
commit 6b25b6ca4e
1 changed files with 5 additions and 4 deletions
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9
mach/msg-destroy.c
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@ -38,6 +38,7 @@
*
*/
#include <libc-pointer-arith.h>
#if 1
#include <mach.h>
#else
@ -162,9 +163,10 @@ __mach_msg_destroy (mach_msg_header_t *msg)
saddr += sizeof(mach_msg_type_t);
}
/* calculate length of data in bytes, rounding up */
length = (((((number * size) + 7) >> 3) + sizeof (int) - 1)
&~ (sizeof (int) - 1));
/* Calculate length of data in bytes... */
length = ((number * size) + 7) >> 3;
/* ... and round up using uintptr_t alignment */
length = ALIGN_UP (length, __alignof__ (uintptr_t));
addr = is_inline ? saddr : * (vm_offset_t *) saddr;
@ -177,7 +179,6 @@ __mach_msg_destroy (mach_msg_header_t *msg)
}
if (is_inline) {
/* inline data sizes round up to int boundaries */
saddr += length;
} else {
mach_msg_destroy_memory(addr, length);