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commit 5325233313c66aea13e86f5dd59618e9dd74b510
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Author: Stefan Liebler <stli@linux.ibm.com>
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Date: Thu Apr 7 13:59:48 2022 +0200
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S390: Fix elf/tst-audit25[ab]
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If glibc is configured with --disable-default-pie and build on
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s390 with -O3, the tests elf/tst-audit25a and elf/tst-audit25b are
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failing as there are additional la_symbind lines for free and malloc.
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It turns out that those belong to the executable. In fact those are
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the PLT-stubs. Furthermore la_symbind is also called for calloc and
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realloc symbols, but those belong to libc.
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Those functions are not called at all, but dlsym'ed in
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elf/dl-minimal.c:
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__rtld_malloc_init_real (struct link_map *main_map)
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{
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...
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void *new_calloc = lookup_malloc_symbol (main_map, "calloc", &version);
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void *new_free = lookup_malloc_symbol (main_map, "free", &version);
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void *new_malloc = lookup_malloc_symbol (main_map, "malloc", &version);
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void *new_realloc = lookup_malloc_symbol (main_map, "realloc", &version);
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...
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}
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Therefore, this commit just ignored symbols with LA_SYMB_DLSYM flag.
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Reviewed-by: Adheemrval Zanella <adhemerval.zanella@linaro.org>
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diff --git a/elf/tst-auditmod25.c b/elf/tst-auditmod25.c
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index 20640a8daf346b5f..0524c5aab17fabba 100644
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--- a/elf/tst-auditmod25.c
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+++ b/elf/tst-auditmod25.c
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@@ -72,7 +72,8 @@ la_symbind32 (Elf32_Sym *sym, unsigned int ndx,
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unsigned int *flags, const char *symname)
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#endif
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{
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- if (*refcook != -1 && *defcook != -1 && symname[0] != '\0')
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+ if (*refcook != -1 && *defcook != -1 && symname[0] != '\0'
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+ && (*flags & LA_SYMB_DLSYM) == 0)
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fprintf (stderr, "la_symbind: %s %u\n", symname,
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*flags & (LA_SYMB_NOPLTENTER | LA_SYMB_NOPLTEXIT) ? 1 : 0);
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return sym->st_value;
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