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[PowerPC] Fix stack padding issue on ppc32.

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Four bytes of padding are needed in the regular powerpc case to bring the
stack frame size up to a multiple of 16 bytes to meet ABI requirements.

Fixes odd hangs I was encountering during testing.
This commit is contained in:
Brandon Bergren 2019-11-24 06:43:03 +00:00
parent e56d731b7d
commit e58d379587
1 changed files with 1 additions and 1 deletions
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2
libexec/rtld-elf/powerpc/rtld_start.S
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@ -111,7 +111,7 @@ _ENTRY(.rtld_start)
/* stack space for 30 GPRs + lr/cr */
#define NREGS 30
#define GPRWIDTH 4
#define FUDGE 0
#define FUDGE 4
#endif
/* Stack frame needs the 12-byte ABI frame plus fudge factor. */
#define STACK_SIZE (NREGS * GPRWIDTH + 4 * 2 + 12 + FUDGE)