https://bugs.kde.org/show_bug.cgi?id=398883
Bug ID: 398883
Summary: valgrind incorrectly assumes ABI on PowerPC based on
endianness
Product: valgrind
Version: 3.13.0
Platform: Other
OS: Linux
Status: REPORTED
Severity: crash
Priority: NOR
Component: general
Assignee: jsew...@acm.org
Reporter: awil...@adelielinux.org
Target Milestone: ---
valgrind (mainly coregrind, though there are a few misc bits in memcheck it
looks like) assumes ELFv1 ABI on big endian and ELFv2 ABI on little endian.
Neither of these assumptions are correct; the musl libc (used by Void, Adélie,
Alpine, Sabotage, and other Linux distros) uses ELFv2 ABI on big endian, and
older releases of OpenSuSE use ELFv1 ABI on little endian.
I plan on submitting a patch, either here or on Differential, in the coming
weeks. My change plan is:
* add definition, VGP_ppc64_linux_abi1 and VGP_ppc64_linux_abi2
* abi1 is defined if (defined(VGP_ppc64be_linux) && (!defined(_CALL_ELF) ||
_CALL_ELF == 1) || (defined(VGP_ppc64le_linux) && defined(_CALL_ELF) &&
_CALL_ELF == 1)
* abi2 is defined if (defined(VGP_ppc64le_linux) && (!defined(_CALL_ELF) ||
_CALL_ELF == 2) || (defined(VGP_ppc64be_linux) && defined(_CALL_ELF) &&
_CALL_ELF == 2)
* then, in the C code, defined(VGP_ppc64le_linux) becomes
defined(VGP_ppc64_linux_abi2)
* and defined(VGP_ppc64be_linux) becomes defined(VGP_ppc64_linux_abi1)
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