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The ptrace-gpr test includes some inline asm to load GPR and FPR registers. It then goes back to C to wait for the parent to trace it and then checks register contents. The split between inline asm and C is fragile, it relies on the compiler not using any non-volatile GPRs after the inline asm block. It also requires a very large and unwieldy inline asm block. So convert the logic to set registers, wait, and store registers to a single asm function, meaning there's no window for the compiler to intervene. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20220627140239.2464900-10-mpe@ellerman.id.au |
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| .. | ||
| basic_asm.h | ||
| fpu_asm.h | ||
| gpr_asm.h | ||
| instructions.h | ||
| pkeys.h | ||
| reg.h | ||
| subunit.h | ||
| utils.h | ||
| vmx_asm.h | ||
| vsx_asm.h | ||