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| author | Patrick Palka <patrick@parcs.ath.cx> | 2015-11-02 13:21:44 -0500 |
|---|---|---|
| committer | Patrick Palka <patrick@parcs.ath.cx> | 2015-12-28 11:17:57 -0500 |
| commit | 65da7f144f53f8af57ff8d4e337ceda49daacc21 (patch) | |
| tree | d69f4b34bf42fdafcbdc6f8a0a0c5f3be1bcb03f | |
| parent | c622ccedda0134f95751bf14d1daa6fce2365d45 (diff) | |
| download | gdb-65da7f144f53f8af57ff8d4e337ceda49daacc21.zip gdb-65da7f144f53f8af57ff8d4e337ceda49daacc21.tar.gz gdb-65da7f144f53f8af57ff8d4e337ceda49daacc21.tar.bz2 | |
Use libiberty's crc32 implementation in gdbserver
Tested on x86_64-pc-linux-gnu native-gdbserver, no new regressions.
gdb/gdbserver/ChangeLog:
* server.c (crc32_table): Delete.
(crc32): Use libiberty's xcrc32 function.
| -rw-r--r-- | gdb/gdbserver/ChangeLog | 5 | ||||
| -rw-r--r-- | gdb/gdbserver/server.c | 21 |
2 files changed, 6 insertions, 20 deletions
diff --git a/gdb/gdbserver/ChangeLog b/gdb/gdbserver/ChangeLog index dd19262..cbc7763 100644 --- a/gdb/gdbserver/ChangeLog +++ b/gdb/gdbserver/ChangeLog @@ -1,3 +1,8 @@ +2015-12-28 Patrick Palka <patrick@parcs.ath.cx> + + * server.c (crc32_table): Delete. + (crc32): Use libiberty's xcrc32 function. + 2015-12-22 Joel Brobecker <brobecker@adacore.com> * lynx-low.c (lynx_delete_thread_callback): New function. diff --git a/gdb/gdbserver/server.c b/gdb/gdbserver/server.c index b385afb..0e3ac4e 100644 --- a/gdb/gdbserver/server.c +++ b/gdb/gdbserver/server.c @@ -1911,11 +1911,6 @@ handle_qxfer (char *own_buf, int packet_len, int *new_packet_len_p) return 0; } -/* Table used by the crc32 function to calcuate the checksum. */ - -static unsigned int crc32_table[256] = -{0, 0}; - /* Compute 32 bit CRC from inferior memory. On success, return 32 bit CRC. @@ -1924,20 +1919,6 @@ static unsigned int crc32_table[256] = static unsigned long long crc32 (CORE_ADDR base, int len, unsigned int crc) { - if (!crc32_table[1]) - { - /* Initialize the CRC table and the decoding table. */ - int i, j; - unsigned int c; - - for (i = 0; i < 256; i++) - { - for (c = i << 24, j = 8; j > 0; --j) - c = c & 0x80000000 ? (c << 1) ^ 0x04c11db7 : (c << 1); - crc32_table[i] = c; - } - } - while (len--) { unsigned char byte = 0; @@ -1946,7 +1927,7 @@ crc32 (CORE_ADDR base, int len, unsigned int crc) if (read_inferior_memory (base, &byte, 1) != 0) return (unsigned long long) -1; - crc = (crc << 8) ^ crc32_table[((crc >> 24) ^ byte) & 255]; + crc = xcrc32 (&byte, 1, crc); base++; } return (unsigned long long) crc; |