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make powerpc64 vrregset_t logical layout match expected API

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between v2 and v3 of the powerpc64 port patch, the change was made
from a 32x4 array of 32-bit unsigned ints for vrregs[] to a 32-element
array of __int128. this mismatches the API applications working with
mcontext_t expect from glibc, and seems to have been motivated by a
misinterpretation of a comment on how aarch64 did things as a
suggestion to do the same on powerpc64.
This commit is contained in:
Rich Felker 2019-05-22 18:28:32 -04:00
parent 3c59a86895
commit ac304227bb
1 changed files with 4 additions and 1 deletions
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5
arch/powerpc64/bits/signal.h
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@ -16,7 +16,10 @@ typedef struct {
} fpregset_t;
typedef struct {
unsigned __int128 vrregs[32];
#ifdef __GNUC__
__attribute__((__aligned__(16)))
#endif
unsigned vrregs[32][4];
struct {
#if __BIG_ENDIAN__
unsigned _pad[3], vscr_word;