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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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21532b9e5b
bin2c is used to create a valid C file out of a binary file where two symbols will be globally defined: <name> and <name>_size. <name> is passed as the first parameter of the host binary. Building using goto-cc reported that the purgatory binary code (the only current user of this utility) declares kexec_purgatory_size as 'size_t' where bin2c generate <name>_size to be 'int' so in a 64-bit host where sizeof(size_t) > sizeof(int) this type mismatch will always yield the wrong value for big-endian architectures while for little-endian it will be wrong if the object laid in memory directly after kexec_purgatory_size contains non-zero value at the time of reading. This commit changes <name>_size to be size_t instead. Note: Another way to fix the problem is to change the type of kexec_purgatory_size to be 'int' as there's this check in code: (kexec_purgatory_size <= 0) Signed-off-by: Michael Tautschnig <tautschn@amazon.com> Cc: Vivek Goyal <vgoyal@redhat.com> Acked-by: Dave Young <dyoung@redhat.com> Signed-off-by: Michal Marek <mmarek@suse.com>
37 lines
743 B
C
37 lines
743 B
C
/*
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* Unloved program to convert a binary on stdin to a C include on stdout
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*
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* Jan 1999 Matt Mackall <mpm@selenic.com>
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*
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* This software may be used and distributed according to the terms
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* of the GNU General Public License, incorporated herein by reference.
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*/
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#include <stdio.h>
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int main(int argc, char *argv[])
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{
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int ch, total = 0;
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if (argc > 1)
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printf("const char %s[] %s=\n",
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argv[1], argc > 2 ? argv[2] : "");
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do {
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printf("\t\"");
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while ((ch = getchar()) != EOF) {
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total++;
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printf("\\x%02x", ch);
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if (total % 16 == 0)
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break;
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}
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printf("\"\n");
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} while (ch != EOF);
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if (argc > 1)
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printf("\t;\n\n#include <linux/types.h>\n\nconst size_t %s_size = %d;\n",
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argv[1], total);
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return 0;
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}
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