Source: clamav
Version: 0.97.8+dfsg-1
Severity: wishlist
Tags: patch
User: [email protected]
Usertags: powerpcspe
Hi,
clamav FTBFS on powerpcspe like this:
...
CXX libllvmpowerpccodegen_la-PPCISelLowering.lo
llvm/lib/Target/PowerPC/PPCISelLowering.cpp: In function 'unsigned int
CalculateParameterAndLinkageAreaSize(llvm::SelectionDAG&, bool, bool, unsigned
int, const llvm::SmallVectorImpl<llvm::ISD::OutputArg>&, const
llvm::SmallVectorImpl<llvm::SDValue>&, unsigned int&)':
llvm/lib/Target/PowerPC/PPCISelLowering.cpp:2156:13: warning: variable 'Arg'
set but not used [-Wunused-but-set-variable]
CXX libllvmpowerpccodegen_la-PPCInstrInfo.lo
CXX libllvmpowerpccodegen_la-PPCJITInfo.lo
/tmp/ccKI8gPe.s: Assembler messages:
/tmp/ccKI8gPe.s:23: Error: unrecognized opcode: `stfd'
/tmp/ccKI8gPe.s:24: Error: unrecognized opcode: `stfd'
/tmp/ccKI8gPe.s:25: Error: unrecognized opcode: `stfd'
/tmp/ccKI8gPe.s:26: Error: unrecognized opcode: `stfd'
/tmp/ccKI8gPe.s:27: Error: unrecognized opcode: `stfd'
/tmp/ccKI8gPe.s:28: Error: unrecognized opcode: `stfd'
/tmp/ccKI8gPe.s:29: Error: unrecognized opcode: `stfd'
/tmp/ccKI8gPe.s:30: Error: unrecognized opcode: `stfd'
/tmp/ccKI8gPe.s:45: Error: unrecognized opcode: `lfd'
/tmp/ccKI8gPe.s:46: Error: unrecognized opcode: `lfd'
/tmp/ccKI8gPe.s:47: Error: unrecognized opcode: `lfd'
/tmp/ccKI8gPe.s:48: Error: unrecognized opcode: `lfd'
/tmp/ccKI8gPe.s:49: Error: unrecognized opcode: `lfd'
/tmp/ccKI8gPe.s:50: Error: unrecognized opcode: `lfd'
/tmp/ccKI8gPe.s:51: Error: unrecognized opcode: `lfd'
/tmp/ccKI8gPe.s:52: Error: unrecognized opcode: `lfd'
make[6]: *** [libllvmpowerpccodegen_la-PPCJITInfo.lo] Error 1
...
The attached patch fixes this by only conditionally assembling the stfd/lfd
instructions when they are available. On powerpcspe, there are no FP registers,
hence they simply don't need to be saved/restored.
Roland
-- System Information:
Debian Release: 7.0
APT prefers unreleased
APT policy: (500, 'unreleased'), (500, 'unstable')
Architecture: powerpcspe (ppc)
Kernel: Linux 3.9.0-dirty (SMP w/2 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8) (ignored: LC_ALL
set to en_GB.UTF-8)
Shell: /bin/sh linked to /bin/dash
--- libclamav/c++/llvm/lib/Target/PowerPC/PPCJITInfo.cpp.orig 2013-12-24 11:10:08.709115796 +0100
+++ libclamav/c++/llvm/lib/Target/PowerPC/PPCJITInfo.cpp 2013-12-24 11:19:23.056944034 +0100
@@ -164,12 +164,14 @@
"stw 8, 92(1)\n" "stw 7, 88(1)\n"
"stw 6, 84(1)\n" "stw 5, 80(1)\n"
"stw 4, 76(1)\n" "stw 3, 72(1)\n"
+#ifndef __NO_FPRS__
// Save all call-clobbered FP regs.
"stfd 8, 64(1)\n"
"stfd 7, 56(1)\n" "stfd 6, 48(1)\n"
"stfd 5, 40(1)\n" "stfd 4, 32(1)\n"
"stfd 3, 24(1)\n" "stfd 2, 16(1)\n"
"stfd 1, 8(1)\n"
+#endif
// Arguments to Compilation Callback:
// r3 - our lr (address of the call instruction in stub plus 4)
// r4 - stub's lr (address of instruction that called the stub plus 4)
@@ -185,12 +187,14 @@
"lwz 8, 92(1)\n" "lwz 7, 88(1)\n"
"lwz 6, 84(1)\n" "lwz 5, 80(1)\n"
"lwz 4, 76(1)\n" "lwz 3, 72(1)\n"
+#ifndef __NO_FPRS__
// Restore all FP arg registers
"lfd 8, 64(1)\n"
"lfd 7, 56(1)\n" "lfd 6, 48(1)\n"
"lfd 5, 40(1)\n" "lfd 4, 32(1)\n"
"lfd 3, 24(1)\n" "lfd 2, 16(1)\n"
"lfd 1, 8(1)\n"
+#endif
// Pop 3 frames off the stack and branch to target
"lwz 1, 104(1)\n"
"lwz 0, 4(1)\n"
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