forked from OSchip/llvm-project
20de182246
Alternative to D74755. sectionWithinSegment() treats an empty section as having a size of 1. Due to the rule, an empty .tdata will not be attributed to an empty PT_TLS. (The empty p_align=64 PT_TLS is for Android Bionic's TCB compatibility (ELF-TLS). See https://reviews.llvm.org/D62055#1507426) Currently --only-keep-debug will not layout a segment with no section (layoutSegmentsForOnlyKeepDebug()), thus p_offset of PT_TLS can go past the end of the file. The strange p_offset can trigger validation errors for subsequent tools, e.g. llvm-objcopy errors when reading back the separate debug file (readProgramHeaders()). This patch places such an empty segment according to its parent segment. This special cases works for the empty PT_TLS used in Android. For a non-empty segment, it should have at least one non-empty section and will be handled by the normal code. Note, p_memsz PT_LOAD is rejected by both Linux and FreeBSD. Reviewed By: jhenderson Differential Revision: https://reviews.llvm.org/D90897 |
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| .. | ||
| COFF | ||
| ELF | ||
| Inputs | ||
| MachO | ||
| wasm | ||
| redefine-symbols.test | ||
| tool-help-message.test | ||
| tool-name.test | ||
| tool-version.test | ||