Fix warnings exposed by GCC8

gcc (GCC) 8.1.0 generates new warnings and thus fails the build.

The ARM disassembler warnings actually exposed a bug in SMALW, SMULW and
SMUL instructions decoding.

Reported by Eimers on IRC.

Change-Id: I200c70f75a9e07a1f13a592addc1c5fb37714440
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/4526
Tested-by: jenkins
Reviewed-by: Jiri Kastner <cz172638@gmail.com>
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>

diff --git a/src/flash/nor/kinetis.c b/src/flash/nor/kinetis.c
index 4d665d339ac872ceba9460739b20a723a443a647..86fad7215c5402c87666df8b774daed0a90ee6c2 100644 (file)
--- a/src/flash/nor/kinetis.c
+++ b/src/flash/nor/kinetis.c
@@ -937,7 +937,7 @@ static int kinetis_create_missing_banks(struct kinetis_chip *k_chip)
        unsigned num_blocks;
        struct kinetis_flash_bank *k_bank;
        struct flash_bank *bank;
-       char base_name[80], name[80], num[4];
+       char base_name[69], name[80], num[4];
        char *class, *p;
 
        num_blocks = k_chip->num_pflash_blocks + k_chip->num_nvm_blocks;
@@ -948,7 +948,8 @@ static int kinetis_create_missing_banks(struct kinetis_chip *k_chip)
 
        bank = k_chip->banks[0].bank;
        if (bank && bank->name) {
-               strncpy(base_name, bank->name, sizeof(base_name));
+               strncpy(base_name, bank->name, sizeof(base_name) - 1);
+               base_name[sizeof(base_name) - 1] = '\0';
                p = strstr(base_name, ".pflash");
                if (p) {
                        *p = '\0';
@@ -960,7 +961,8 @@ static int kinetis_create_missing_banks(struct kinetis_chip *k_chip)
                        }
                }
        } else {
-               strncpy(base_name, target_name(k_chip->target), sizeof(base_name));
+               strncpy(base_name, target_name(k_chip->target), sizeof(base_name) - 1);
+               base_name[sizeof(base_name) - 1] = '\0';
                p = strstr(base_name, ".cpu");
                if (p)
                        *p = '\0';
@@ -2012,7 +2014,7 @@ static int kinetis_probe_chip(struct kinetis_chip *k_chip)
        unsigned cpu_mhz = 120;
        unsigned idx;
        bool use_nvm_marking = false;
-       char flash_marking[11], nvm_marking[2];
+       char flash_marking[12], nvm_marking[2];
        char name[40];
 
        k_chip->probed = false;

diff --git a/src/jtag/drivers/kitprog.c b/src/jtag/drivers/kitprog.c
index 522eb17bb735e35fbd6c925ce7cf5b9eff3b2363..e3ad84d30c7c973bf2deb8a13720bf7801a51457 100644 (file)
--- a/src/jtag/drivers/kitprog.c
+++ b/src/jtag/drivers/kitprog.c
@@ -888,13 +888,11 @@ COMMAND_HANDLER(kitprog_handle_acquire_psoc_command)
 COMMAND_HANDLER(kitprog_handle_serial_command)
 {
        if (CMD_ARGC == 1) {
-               size_t len = strlen(CMD_ARGV[0]);
-               kitprog_serial = calloc(len + 1, sizeof(char));
+               kitprog_serial = strdup(CMD_ARGV[0]);
                if (kitprog_serial == NULL) {
                        LOG_ERROR("Failed to allocate memory for the serial number");
                        return ERROR_FAIL;
                }
-               strncpy(kitprog_serial, CMD_ARGV[0], len + 1);
        } else {
                LOG_ERROR("expected exactly one argument to kitprog_serial <serial-number>");
                return ERROR_FAIL;

diff --git a/src/target/arm_adi_v5.c b/src/target/arm_adi_v5.c
index e2d9b5e66873f2980f8aabbb44e6b15fe2b01555..d0a58bda0b9a3ecad8c8f5069702bb4c09783c66 100644 (file)
--- a/src/target/arm_adi_v5.c
+++ b/src/target/arm_adi_v5.c
@@ -152,6 +152,8 @@ static uint32_t mem_ap_get_tar_increment(struct adiv5_ap *ap)
                        return 2;
                case CSW_32BIT:
                        return 4;
+               default:
+                       return 0;
                }
        case CSW_ADDRINC_PACKED:
                return 4;

diff --git a/src/target/arm_disassembler.c b/src/target/arm_disassembler.c
index 8e783d3425f303b669c70fe178408cd4628f7b39..17948d6da49beecd893c997e544f8d9a0e9eebdd 100644 (file)
--- a/src/target/arm_disassembler.c
+++ b/src/target/arm_disassembler.c
@@ -1549,7 +1549,7 @@ static int evaluate_misc_instr(uint32_t opcode,
                }
 
                /* SMLAW < y> */
-               if (((opcode & 0x00600000) == 0x00100000) && (x == 0)) {
+               if (((opcode & 0x00600000) == 0x00200000) && (x == 0)) {
                        uint8_t Rd, Rm, Rs, Rn;
                        instruction->type = ARM_SMLAWy;
                        Rd = (opcode & 0xf0000) >> 16;
@@ -1571,7 +1571,7 @@ static int evaluate_misc_instr(uint32_t opcode,
                }
 
                /* SMUL < x><y> */
-               if ((opcode & 0x00600000) == 0x00300000) {
+               if ((opcode & 0x00600000) == 0x00600000) {
                        uint8_t Rd, Rm, Rs;
                        instruction->type = ARM_SMULxy;
                        Rd = (opcode & 0xf0000) >> 16;
@@ -1592,7 +1592,7 @@ static int evaluate_misc_instr(uint32_t opcode,
                }
 
                /* SMULW < y> */
-               if (((opcode & 0x00600000) == 0x00100000) && (x == 1)) {
+               if (((opcode & 0x00600000) == 0x00200000) && (x == 1)) {
                        uint8_t Rd, Rm, Rs;
                        instruction->type = ARM_SMULWy;
                        Rd = (opcode & 0xf0000) >> 16;