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*: suppress ~60% of "aliased warnings" on gcc-4.4.1

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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2010-02-04 15:00:15 +01:00
parent 1821d188ca
commit 98a4c7cf3d
49 changed files with 65 additions and 58 deletions
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10
archival/libunarchive/get_header_tar.c
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@@ -14,6 +14,10 @@
#include "libbb.h"
#include "unarchive.h"
typedef uint32_t aliased_uint32_t FIX_ALIASING;
typedef off_t aliased_off_t FIX_ALIASING;
/*
* GNU tar uses "base-256 encoding" for very large numbers (>8 billion).
* Encoding is binary, with highest bit always set as a marker
@@ -68,10 +72,10 @@ static off_t getBase256_len12(const char *str)
* and fetch it in one go:
*/
if (sizeof(off_t) == 8) {
value = *(off_t*)str;
value = *(aliased_off_t*)str;
value = SWAP_BE64(value);
} else if (sizeof(off_t) == 4) {
value = *(off_t*)str;
value = *(aliased_off_t*)str;
value = SWAP_BE32(value);
} else {
value = 0;
@@ -156,7 +160,7 @@ char FAST_FUNC get_header_tar(archive_handle_t *archive_handle)
#if ENABLE_DESKTOP || ENABLE_FEATURE_TAR_AUTODETECT
/* to prevent misdetection of bz2 sig */
*(uint32_t*)(&tar) = 0;
*(aliased_uint32_t*)&tar = 0;
i = full_read(archive_handle->src_fd, &tar, 512);
/* If GNU tar sees EOF in above read, it says:
* "tar: A lone zero block at N", where N = kilobyte