Re: [PATCH 01/12] dl_iterate_phdr.3: Cast 'ElfN_Word' to 'uintmax_t' for printf()

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* Alejandro Colomar <colomar.6.4.3@xxxxxxxxx>, 2020-09-12, 01:14:
-        printf("    %2d: [%14p; memsz:%7lx] flags: %#x; ", j,
+        printf("    %2d: [%14p; memsz:%7jx] flags: %#jx; ", j,
                (void *) (info\->dlpi_addr + info\->dlpi_phdr[j].p_vaddr),
-                info\->dlpi_phdr[j].p_memsz,
-                info\->dlpi_phdr[j].p_flags);
+                (uintmax_t) info\->dlpi_phdr[j].p_memsz,
+                (uintmax_t) info\->dlpi_phdr[j].p_flags);

The commit message is misleading. ElfN_Word is always uint32_t, regardless of N. On the other hand, on 64-bit architectures the type of p_memsz is Elf64_Xword (i.e., uint64_t), not Elf64_Word.

--
Jakub Wilk



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