From: Pedro Alves Date: Fri, 19 Apr 2013 15:28:42 +0000 (+0000) Subject: -Wpointer-sign: remote-mips.c. X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=ce6ec7d8d0bdec44a432131dfacc27917965f29f;p=binutils-gdb.git -Wpointer-sign: remote-mips.c. remote-mips.c has a bunch of -Wpointer-sign warnings: ../../src/gdb/remote-mips.c: In function ‘mips_receive_packet’: ../../src/gdb/remote-mips.c:1128:7: error: pointer targets in passing argument 2 of ‘mips_cksum’ differ in signedness [-Werror=pointer-sign] ../../src/gdb/remote-mips.c:830:1: note: expected ‘const unsigned char *’ but argument is of type ‘char *’ ../../src/gdb/remote-mips.c:1135:7: error: pointer targets in passing argument 2 of ‘mips_cksum’ differ in signedness [-Werror=pointer-sign] ../../src/gdb/remote-mips.c:830:1: note: expected ‘const unsigned char *’ but argument is of type ‘char *’ ../../src/gdb/remote-mips.c: In function ‘mips_load_srec’: ../../src/gdb/remote-mips.c:2830:12: error: pointer targets in passing argument 4 of ‘mips_make_srec’ differ in signedness [-Werror=pointer-sign] ../../src/gdb/remote-mips.c:134:12: note: expected ‘unsigned char *’ but argument is of type ‘char *’ ../../src/gdb/remote-mips.c: In function ‘pmon_zeroset’: ../../src/gdb/remote-mips.c:3030:3: error: pointer targets in passing argument 4 of ‘pmon_makeb64’ differ in signedness [-Werror=pointer-sign] ../../src/gdb/remote-mips.c:2977:1: note: expected ‘int *’ but argument is of type ‘unsigned int *’ ../../src/gdb/remote-mips.c: In function ‘pmon_make_fastrec’: ../../src/gdb/remote-mips.c:3124:6: error: pointer targets in passing argument 3 of ‘pmon_zeroset’ differ in signedness [-Werror=pointer-sign] ../../src/gdb/remote-mips.c:3025:1: note: expected ‘int *’ but argument is of type ‘unsigned int *’ ../../src/gdb/remote-mips.c:3126:4: error: pointer targets in passing argument 4 of ‘pmon_makeb64’ differ in signedness [-Werror=pointer-sign] ../../src/gdb/remote-mips.c:2977:1: note: expected ‘int *’ but argument is of type ‘unsigned int *’ ../../src/gdb/remote-mips.c:3148:3: error: pointer targets in passing argument 3 of ‘pmon_zeroset’ differ in signedness [-Werror=pointer-sign] ../../src/gdb/remote-mips.c:3025:1: note: expected ‘int *’ but argument is of type ‘unsigned int *’ ../../src/gdb/remote-mips.c:3153:3: error: pointer targets in passing argument 3 of ‘pmon_zeroset’ differ in signedness [-Werror=pointer-sign] ../../src/gdb/remote-mips.c:3025:1: note: expected ‘int *’ but argument is of type ‘unsigned int *’ ../../src/gdb/remote-mips.c:3154:8: error: pointer targets in passing argument 4 of ‘pmon_makeb64’ differ in signedness [-Werror=pointer-sign] ../../src/gdb/remote-mips.c:2977:1: note: expected ‘int *’ but argument is of type ‘unsigned int *’ ../../src/gdb/remote-mips.c: In function ‘pmon_load_fast’: ../../src/gdb/remote-mips.c:3423:2: error: pointer targets in passing argument 4 of ‘pmon_makeb64’ differ in signedness [-Werror=pointer-sign] ../../src/gdb/remote-mips.c:2977:1: note: expected ‘int *’ but argument is of type ‘unsigned int *’ ../../src/gdb/remote-mips.c:3457:4: error: pointer targets in passing argument 3 of ‘pmon_checkset’ differ in signedness [-Werror=pointer-sign] ../../src/gdb/remote-mips.c:3051:1: note: expected ‘int *’ but argument is of type ‘unsigned int *’ ../../src/gdb/remote-mips.c:3484:8: error: pointer targets in passing argument 3 of ‘pmon_zeroset’ differ in signedness [-Werror=pointer-sign] ../../src/gdb/remote-mips.c:3025:1: note: expected ‘int *’ but argument is of type ‘unsigned int *’ ../../src/gdb/remote-mips.c:3489:3: error: pointer targets in passing argument 3 of ‘pmon_checkset’ differ in signedness [-Werror=pointer-sign] ../../src/gdb/remote-mips.c:3051:1: note: expected ‘int *’ but argument is of type ‘unsigned int *’ The mips packet payload is ASCII, so it makes sense for mips_send_packet and mips_receive_packet to expose 'char *'-based interfaces, as currently they do. But, mips packets have a binary header, so if you look at e.g., mips_receive_packet's implementation, you'll see "unsigned char" buffers in use. I find it the most natural to make the payload pointer passed to mips_cksum 'char *' too. The other changes are straightforward adjustments -- a checksum is naturally unsigned, and there's one point where we're reading a bfd section. gdb/ 2013-04-19 Pedro Alves * remote-mips.c (mips_cksum): Rename 'data' parameter to 'datastr' and change its type to 'const char *'. Adjust. (mips_send_packet): Add cast to 'char *', and remove cast to 'unsigned char *'. (mips_receive_packet): Remove cast to 'unsigned char *'. (mips_load_srec): Use bfd_byte. (pmon_makeb64, pmon_zeroset): Make 'chksum' parameter unsigned. (pmon_checkset): Make 'value' parameter unsigned. --- diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 7fd9460302f..ca172d1ffd9 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,14 @@ +2013-04-19 Pedro Alves + + * remote-mips.c (mips_cksum): Rename 'data' parameter to 'datastr' + and change its type to 'const char *'. Adjust. + (mips_send_packet): Add cast to 'char *', and remove cast to + 'unsigned char *'. + (mips_receive_packet): Remove cast to 'unsigned char *'. + (mips_load_srec): Use bfd_byte. + (pmon_makeb64, pmon_zeroset): Make 'chksum' parameter unsigned. + (pmon_checkset): Make 'value' parameter unsigned. + 2013-04-19 Pedro Alves * common/agent.c (agent_run_command): Add cast to gdb_byte *. diff --git a/gdb/remote-mips.c b/gdb/remote-mips.c index 85002ecc7d7..3b65b59f124 100644 --- a/gdb/remote-mips.c +++ b/gdb/remote-mips.c @@ -63,7 +63,7 @@ static int mips_receive_trailer (unsigned char *trlr, int *pgarbage, int *pch, int timeout); static int mips_cksum (const unsigned char *hdr, - const unsigned char *data, int len); + const char *data, int len); static void mips_send_packet (const char *s, int get_ack); @@ -108,12 +108,12 @@ static void mips_files_info (struct target_ops *ignore); static void mips_mourn_inferior (struct target_ops *ops); -static int pmon_makeb64 (unsigned long v, char *p, int n, int *chksum); +static int pmon_makeb64 (unsigned long v, char *p, int n, unsigned int *chksum); -static int pmon_zeroset (int recsize, char **buff, int *amount, +static int pmon_zeroset (int recsize, char **buff, unsigned int *amount, unsigned int *chksum); -static int pmon_checkset (int recsize, char **buff, int *value); +static int pmon_checkset (int recsize, char **buff, unsigned int *value); static void pmon_make_fastrec (char **outbuf, unsigned char *inbuf, int *inptr, int inamount, int *recsize, @@ -824,12 +824,13 @@ mips_receive_trailer (unsigned char *trlr, int *pgarbage, } /* Get the checksum of a packet. HDR points to the packet header. - DATA points to the packet data. LEN is the length of DATA. */ + DATASTR points to the packet data. LEN is the length of DATASTR. */ static int -mips_cksum (const unsigned char *hdr, const unsigned char *data, int len) +mips_cksum (const unsigned char *hdr, const char *datastr, int len) { const unsigned char *p; + const unsigned char *data = (const unsigned char *) datastr; int c; int cksum; @@ -872,7 +873,7 @@ mips_send_packet (const char *s, int get_ack) memcpy (packet + HDR_LENGTH, s, len); - cksum = mips_cksum (packet, packet + HDR_LENGTH, len); + cksum = mips_cksum (packet, (char *) packet + HDR_LENGTH, len); packet[HDR_LENGTH + len + TRLR_INDX_CSUM1] = TRLR_SET_CSUM1 (cksum); packet[HDR_LENGTH + len + TRLR_INDX_CSUM2] = TRLR_SET_CSUM2 (cksum); packet[HDR_LENGTH + len + TRLR_INDX_CSUM3] = TRLR_SET_CSUM3 (cksum); @@ -976,8 +977,7 @@ mips_send_packet (const char *s, int get_ack) /* If the checksum does not match the trailer checksum, this is a bad packet; ignore it. */ - if (mips_cksum (hdr, (unsigned char *) NULL, 0) - != TRLR_GET_CKSUM (trlr)) + if (mips_cksum (hdr, NULL, 0) != TRLR_GET_CKSUM (trlr)) continue; if (remote_debug > 0) @@ -1142,7 +1142,7 @@ mips_receive_packet (char *buff, int throw_error, int timeout) ack[HDR_INDX_LEN1] = HDR_SET_LEN1 (0, 0, mips_receive_seq); ack[HDR_INDX_SEQ] = HDR_SET_SEQ (0, 0, mips_receive_seq); - cksum = mips_cksum (ack, (unsigned char *) NULL, 0); + cksum = mips_cksum (ack, NULL, 0); ack[HDR_LENGTH + TRLR_INDX_CSUM1] = TRLR_SET_CSUM1 (cksum); ack[HDR_LENGTH + TRLR_INDX_CSUM2] = TRLR_SET_CSUM2 (cksum); @@ -1183,7 +1183,7 @@ mips_receive_packet (char *buff, int throw_error, int timeout) ack[HDR_INDX_LEN1] = HDR_SET_LEN1 (0, 0, mips_receive_seq); ack[HDR_INDX_SEQ] = HDR_SET_SEQ (0, 0, mips_receive_seq); - cksum = mips_cksum (ack, (unsigned char *) NULL, 0); + cksum = mips_cksum (ack, NULL, 0); ack[HDR_LENGTH + TRLR_INDX_CSUM1] = TRLR_SET_CSUM1 (cksum); ack[HDR_LENGTH + TRLR_INDX_CSUM2] = TRLR_SET_CSUM2 (cksum); @@ -2781,7 +2781,8 @@ mips_load_srec (char *args) { bfd *abfd; asection *s; - char *buffer, srec[1024]; + char srec[1024]; + bfd_byte *buffer; unsigned int i; unsigned int srec_frame = 200; int reclen; @@ -2974,7 +2975,7 @@ static char encoding[] = characters written into the buffer. */ static int -pmon_makeb64 (unsigned long v, char *p, int n, int *chksum) +pmon_makeb64 (unsigned long v, char *p, int n, unsigned int *chksum) { int count = (n / 6); @@ -3022,7 +3023,8 @@ pmon_makeb64 (unsigned long v, char *p, int n, int *chksum) escape sequence into the data stream. */ static int -pmon_zeroset (int recsize, char **buff, int *amount, unsigned int *chksum) +pmon_zeroset (int recsize, char **buff, + unsigned int *amount, unsigned int *chksum) { int count; @@ -3048,7 +3050,7 @@ pmon_zeroset (int recsize, char **buff, int *amount, unsigned int *chksum) the record elements added by this call. */ static int -pmon_checkset (int recsize, char **buff, int *value) +pmon_checkset (int recsize, char **buff, unsigned int *value) { int count;