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632d895f3e
Add DL_ADDRESS_WITHOUT_RELOC to force an address into a general purpose register to prevent loading it into a vector register directly before run-time relocation. This is an updated fix for BZ #33088. Signed-off-by: H.J. Lu <hjl.tools@gmail.com> Reviewed-by: Florian Weimer <fweimer@redhat.com>
43 lines
1.3 KiB
C
43 lines
1.3 KiB
C
#ifndef _ELF_H
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#include <elf/elf.h>
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#ifndef _ISOMAC
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# include <libc-pointer-arith.h>
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/* Compute the offset of the note descriptor from size of note entry's
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owner string and note alignment. */
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# define ELF_NOTE_DESC_OFFSET(namesz, align) \
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ALIGN_UP (sizeof (ElfW(Nhdr)) + (namesz), (align))
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/* Compute the offset of the next note entry from size of note entry's
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owner string, size of the note descriptor and note alignment. */
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# define ELF_NOTE_NEXT_OFFSET(namesz, descsz, align) \
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ALIGN_UP (ELF_NOTE_DESC_OFFSET ((namesz), (align)) + (descsz), (align))
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# ifdef HIDDEN_VAR_NEEDS_DYNAMIC_RELOC
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# define DL_ADDRESS_WITHOUT_RELOC(expr) (expr)
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# else
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/* Evaluate EXPR without run-time relocation for it. EXPR should be an
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array, an address of an object, or a string literal. */
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# define DL_ADDRESS_WITHOUT_RELOC(expr) \
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({ \
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__auto_type _result = (expr); \
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asm ("" : "+r" (_result)); \
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_result; \
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})
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# endif
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/* Some information which is not meant for the public and therefore not
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in <elf.h>. */
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# include <dl-dtprocnum.h>
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# ifdef DT_1_SUPPORTED_MASK
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# error DT_1_SUPPORTED_MASK is defined!
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# endif
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# define DT_1_SUPPORTED_MASK \
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(DF_1_NOW | DF_1_NODELETE | DF_1_INITFIRST | DF_1_NOOPEN \
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| DF_1_ORIGIN | DF_1_NODEFLIB | DF_1_PIE)
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#endif /* !_ISOMAC */
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#endif /* elf.h */
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