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Revert "DWARF: convert error logs to _LIBUNWIND_LOG"

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This reverts SVN r292721.  Avoid the use of the GNU extension as the
preprocessor in C++11 mode requires at least one argument, and this
warning cannot be disabled, resulting in failing -Werror builds.

llvm-svn: 293257
This commit is contained in:
Saleem Abdulrasool 2017-01-27 02:26:52 +00:00
parent 0d299191d0
commit 2b2f4dadc4
2 changed files with 31 additions and 17 deletions
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46
libunwind/src/DwarfParser.hpp
View File

@ -416,7 +416,8 @@ bool CFI_Parser<A>::parseInstructions(A &addressSpace, pint_t instructions,
offset = (int64_t)addressSpace.getULEB128(p, instructionsEnd)
* cieInfo.dataAlignFactor;
if (reg > kMaxRegisterNumber) {
_LIBUNWIND_LOG("malformed DWARF DW_CFA_offset_extended, reg too big");
fprintf(stderr,
"malformed DW_CFA_offset_extended DWARF unwind, reg too big\n");
return false;
}
results->savedRegisters[reg].location = kRegisterInCFA;
@ -428,7 +429,9 @@ bool CFI_Parser<A>::parseInstructions(A &addressSpace, pint_t instructions,
case DW_CFA_restore_extended:
reg = addressSpace.getULEB128(p, instructionsEnd);
if (reg > kMaxRegisterNumber) {
_LIBUNWIND_LOG("malformed DWARF DW_CFA_restore_extended, reg too big");
fprintf(
stderr,
"malformed DW_CFA_restore_extended DWARF unwind, reg too big\n");
return false;
}
results->savedRegisters[reg] = initialState.savedRegisters[reg];
@ -437,7 +440,8 @@ bool CFI_Parser<A>::parseInstructions(A &addressSpace, pint_t instructions,
case DW_CFA_undefined:
reg = addressSpace.getULEB128(p, instructionsEnd);
if (reg > kMaxRegisterNumber) {
_LIBUNWIND_LOG("malformed DWARF DW_CFA_undefined, reg too big");
fprintf(stderr,
"malformed DW_CFA_undefined DWARF unwind, reg too big\n");
return false;
}
results->savedRegisters[reg].location = kRegisterUnused;
@ -446,7 +450,8 @@ bool CFI_Parser<A>::parseInstructions(A &addressSpace, pint_t instructions,
case DW_CFA_same_value:
reg = addressSpace.getULEB128(p, instructionsEnd);
if (reg > kMaxRegisterNumber) {
_LIBUNWIND_LOG("malformed DWARF DW_CFA_same_value, reg too big");
fprintf(stderr,
"malformed DW_CFA_same_value DWARF unwind, reg too big\n");
return false;
}
// <rdar://problem/8456377> DW_CFA_same_value unsupported
@ -462,11 +467,13 @@ bool CFI_Parser<A>::parseInstructions(A &addressSpace, pint_t instructions,
reg = addressSpace.getULEB128(p, instructionsEnd);
reg2 = addressSpace.getULEB128(p, instructionsEnd);
if (reg > kMaxRegisterNumber) {
_LIBUNWIND_LOG("malformed DWARF DW_CFA_register, reg too big");
fprintf(stderr,
"malformed DW_CFA_register DWARF unwind, reg too big\n");
return false;
}
if (reg2 > kMaxRegisterNumber) {
_LIBUNWIND_LOG("malformed DWARF DW_CFA_register, reg2 too big");
fprintf(stderr,
"malformed DW_CFA_register DWARF unwind, reg2 too big\n");
return false;
}
results->savedRegisters[reg].location = kRegisterInRegister;
@ -505,7 +512,7 @@ bool CFI_Parser<A>::parseInstructions(A &addressSpace, pint_t instructions,
reg = addressSpace.getULEB128(p, instructionsEnd);
offset = (int64_t)addressSpace.getULEB128(p, instructionsEnd);
if (reg > kMaxRegisterNumber) {
_LIBUNWIND_LOG("malformed DWARF DW_CFA_def_cfa, reg too big");
fprintf(stderr, "malformed DW_CFA_def_cfa DWARF unwind, reg too big\n");
return false;
}
results->cfaRegister = (uint32_t)reg;
@ -516,7 +523,9 @@ bool CFI_Parser<A>::parseInstructions(A &addressSpace, pint_t instructions,
case DW_CFA_def_cfa_register:
reg = addressSpace.getULEB128(p, instructionsEnd);
if (reg > kMaxRegisterNumber) {
_LIBUNWIND_LOG("malformed DWARF DW_CFA_def_cfa_register, reg too big");
fprintf(
stderr,
"malformed DW_CFA_def_cfa_register DWARF unwind, reg too big\n");
return false;
}
results->cfaRegister = (uint32_t)reg;
@ -541,7 +550,8 @@ bool CFI_Parser<A>::parseInstructions(A &addressSpace, pint_t instructions,
case DW_CFA_expression:
reg = addressSpace.getULEB128(p, instructionsEnd);
if (reg > kMaxRegisterNumber) {
_LIBUNWIND_LOG("malformed DWARF DW_CFA_expression, reg too big");
fprintf(stderr,
"malformed DW_CFA_expression DWARF unwind, reg too big\n");
return false;
}
results->savedRegisters[reg].location = kRegisterAtExpression;
@ -556,8 +566,9 @@ bool CFI_Parser<A>::parseInstructions(A &addressSpace, pint_t instructions,
case DW_CFA_offset_extended_sf:
reg = addressSpace.getULEB128(p, instructionsEnd);
if (reg > kMaxRegisterNumber) {
_LIBUNWIND_LOG(
"malformed DWARF DW_CFA_offset_extended_sf, reg too big");
fprintf(
stderr,
"malformed DW_CFA_offset_extended_sf DWARF unwind, reg too big\n");
return false;
}
offset =
@ -573,7 +584,8 @@ bool CFI_Parser<A>::parseInstructions(A &addressSpace, pint_t instructions,
offset =
addressSpace.getSLEB128(p, instructionsEnd) * cieInfo.dataAlignFactor;
if (reg > kMaxRegisterNumber) {
_LIBUNWIND_LOG("malformed DWARF DW_CFA_def_cfa_sf, reg too big");
fprintf(stderr,
"malformed DW_CFA_def_cfa_sf DWARF unwind, reg too big\n");
return false;
}
results->cfaRegister = (uint32_t)reg;
@ -602,7 +614,8 @@ bool CFI_Parser<A>::parseInstructions(A &addressSpace, pint_t instructions,
case DW_CFA_val_offset_sf:
reg = addressSpace.getULEB128(p, instructionsEnd);
if (reg > kMaxRegisterNumber) {
_LIBUNWIND_LOG("malformed DWARF DW_CFA_val_offset_sf, reg too big");
fprintf(stderr,
"malformed DW_CFA_val_offset_sf DWARF unwind, reg too big\n");
return false;
}
offset =
@ -616,7 +629,8 @@ bool CFI_Parser<A>::parseInstructions(A &addressSpace, pint_t instructions,
case DW_CFA_val_expression:
reg = addressSpace.getULEB128(p, instructionsEnd);
if (reg > kMaxRegisterNumber) {
_LIBUNWIND_LOG("malformed DWARF DW_CFA_val_expression, reg too big");
fprintf(stderr,
"malformed DW_CFA_val_expression DWARF unwind, reg too big\n");
return false;
}
results->savedRegisters[reg].location = kRegisterIsExpression;
@ -635,8 +649,8 @@ bool CFI_Parser<A>::parseInstructions(A &addressSpace, pint_t instructions,
case DW_CFA_GNU_negative_offset_extended:
reg = addressSpace.getULEB128(p, instructionsEnd);
if (reg > kMaxRegisterNumber) {
_LIBUNWIND_LOG(
"malformed DWARF DW_CFA_GNU_negative_offset_extended, reg too big");
fprintf(stderr, "malformed DW_CFA_GNU_negative_offset_extended DWARF "
"unwind, reg too big\n");
return false;
}
offset = (int64_t)addressSpace.getULEB128(p, instructionsEnd)

2
libunwind/src/config.h
View File

@ -87,7 +87,7 @@
} while (0)
#define _LIBUNWIND_LOG(msg, ...) \
fprintf(stderr, "libunwind: " msg "\n", ##__VA_ARGS__)
fprintf(stderr, "libunwind: " msg "\n", __VA_ARGS__)
#if defined(_LIBUNWIND_HAS_NO_THREADS)
// only used with pthread calls, not needed for the single-threaded builds