mirror of https://github.com/acidanthera/audk.git
ArmPkg/DefaultExceptionHandlerLib: walk call stack unconditionally
Currently, we only attempt to walk the call stack and print a backtrace if the program counter refers to a location covered by a PE/COFF image. However, regardless of the value of PC, the frame pointer may still have a meaningful value, and so we can still produce the remainder of the backtrace. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
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@ -181,37 +181,43 @@ DefaultExceptionHandler (
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DEBUG ((EFI_D_ERROR, "PC 0x%012lx (0x%012lx+0x%08x) [ 0] %a\n",
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SystemContext.SystemContextAArch64->ELR, ImageBase,
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SystemContext.SystemContextAArch64->ELR - ImageBase, BaseName (Pdb)));
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} else {
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DEBUG ((EFI_D_ERROR, "PC 0x%012lx\n", SystemContext.SystemContextAArch64->ELR));
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}
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if ((UINT64 *)SystemContext.SystemContextAArch64->FP != 0) {
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Idx = 0;
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if ((UINT64 *)SystemContext.SystemContextAArch64->FP != 0) {
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Idx = 0;
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RootFp[0] = ((UINT64 *)SystemContext.SystemContextAArch64->FP)[0];
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RootFp[1] = ((UINT64 *)SystemContext.SystemContextAArch64->FP)[1];
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if (RootFp[1] != SystemContext.SystemContextAArch64->LR) {
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RootFp[0] = SystemContext.SystemContextAArch64->FP;
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RootFp[1] = SystemContext.SystemContextAArch64->LR;
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}
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for (Fp = RootFp; Fp[0] != 0; Fp = (UINT64 *)Fp[0]) {
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Pdb = GetImageName (Fp[1], &ImageBase, &PeCoffSizeOfHeader);
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if (Pdb != NULL) {
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if (Pdb != PrevPdb) {
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Idx++;
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PrevPdb = Pdb;
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}
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DEBUG ((EFI_D_ERROR, "PC 0x%012lx (0x%012lx+0x%08x) [% 2d] %a\n",
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Fp[1], ImageBase, Fp[1] - ImageBase, Idx, BaseName (Pdb)));
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}
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}
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PrevPdb = Pdb = GetImageName (SystemContext.SystemContextAArch64->ELR, &ImageBase, &PeCoffSizeOfHeader);
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DEBUG ((EFI_D_ERROR, "\n[ 0] %a\n", Pdb));
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Idx = 0;
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for (Fp = RootFp; Fp[0] != 0; Fp = (UINT64 *)Fp[0]) {
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Pdb = GetImageName (Fp[1], &ImageBase, &PeCoffSizeOfHeader);
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if (Pdb != NULL && Pdb != PrevPdb) {
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DEBUG ((EFI_D_ERROR, "[% 2d] %a\n", ++Idx, Pdb));
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RootFp[0] = ((UINT64 *)SystemContext.SystemContextAArch64->FP)[0];
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RootFp[1] = ((UINT64 *)SystemContext.SystemContextAArch64->FP)[1];
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if (RootFp[1] != SystemContext.SystemContextAArch64->LR) {
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RootFp[0] = SystemContext.SystemContextAArch64->FP;
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RootFp[1] = SystemContext.SystemContextAArch64->LR;
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}
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for (Fp = RootFp; Fp[0] != 0; Fp = (UINT64 *)Fp[0]) {
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Pdb = GetImageName (Fp[1], &ImageBase, &PeCoffSizeOfHeader);
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if (Pdb != NULL) {
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if (Pdb != PrevPdb) {
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Idx++;
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PrevPdb = Pdb;
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}
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DEBUG ((EFI_D_ERROR, "PC 0x%012lx (0x%012lx+0x%08x) [% 2d] %a\n",
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Fp[1], ImageBase, Fp[1] - ImageBase, Idx, BaseName (Pdb)));
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} else {
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DEBUG ((EFI_D_ERROR, "PC 0x%012lx\n", Fp[1]));
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}
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}
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PrevPdb = Pdb = GetImageName (SystemContext.SystemContextAArch64->ELR, &ImageBase, &PeCoffSizeOfHeader);
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if (Pdb != NULL) {
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DEBUG ((EFI_D_ERROR, "\n[ 0] %a\n", Pdb));
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}
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Idx = 0;
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for (Fp = RootFp; Fp[0] != 0; Fp = (UINT64 *)Fp[0]) {
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Pdb = GetImageName (Fp[1], &ImageBase, &PeCoffSizeOfHeader);
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if (Pdb != NULL && Pdb != PrevPdb) {
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DEBUG ((EFI_D_ERROR, "[% 2d] %a\n", ++Idx, Pdb));
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PrevPdb = Pdb;
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}
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}
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}
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