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Fix warnings seen on SDCC 4.6.0 due to missing const qualifiers

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Building with SDCC 4.6.0 emits tons of warnings e.g.:

	cmd_parser.c:31: warning 356: object in read-only code space should be const
	cmd_parser.c:36: warning 357: pointer to object in read-only code space should be pointer to const

These of course become fatal when building with --Werror.

Comparing resultant binaries, it seems that a single string is shifted
(deduplication?) but the numbers emitted at the end of the build are
otherwise identical.
This commit is contained in:
Matt Merhar committed 2026-09-20 18:25:17 -04:00
1 parent 55431b39f6
commit 1b5243714e
22 files changed
+57 -57
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rtlplayground.c
+8 -8
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@@ -79,9 +79,9 @@ void crc16_bank1(__xdata uint8_t *v) __naked;
__xdata uint8_t idle_ready;
__code uint8_t ownIP[] = { 192, 168, 2, 2 };
__code uint8_t gatewayIP[] = { 192, 168, 2, 22};
__code uint8_t netmask[] = { 255, 255, 255, 0};
__code const uint8_t ownIP[] = { 192, 168, 2, 2 };
__code const uint8_t gatewayIP[] = { 192, 168, 2, 22};
__code const uint8_t netmask[] = { 255, 255, 255, 0};
__xdata struct uip_eth_addr uip_ethaddr;
@@ -108,8 +108,8 @@ extern __xdata uint8_t gpio_last_value[8];
extern __xdata struct flash_region_t flash_region;
__code uint8_t * __code greeting = "\nA minimal prompt to explore the RTL8372:\n";
__code uint8_t * __code hex = "0123456789abcdef";
__code const uint8_t * __code const greeting = "\nA minimal prompt to explore the RTL8372:\n";
__code const uint8_t * __code const hex = "0123456789abcdef";
__xdata uint8_t flash_buf[FLASH_BUF_SIZE];
@@ -126,7 +126,7 @@ __xdata bool stp_enabled;
__xdata uint8_t igmpEnabled;
__xdata char hostname[24]; /* device hostname, default set at boot, see rtl837x_common.h */
__code uint16_t bit_mask[16] = {
__code const uint16_t bit_mask[16] = {
0x0001, 0x0002, 0x0004, 0x0008, 0x0010, 0x0020, 0x0040, 0x0080,
0x0100, 0x0200, 0x0400, 0x0800, 0x1000, 0x2000, 0x4000, 0x8000
};
@@ -349,7 +349,7 @@ int memcmp(__xdata const void *a, __xdata const void *b, uint16_t len)
return 0;
}
void memcpyc(__xdata uint8_t *dst, __code uint8_t *src, uint16_t len)
void memcpyc(__xdata uint8_t *dst, __code const uint8_t *src, uint16_t len)
{
while (len--)
*dst++ = *src++;
@@ -785,7 +785,7 @@ void nic_tx_packet(uint16_t ring_ptr)
* Note that the address in the flash memory is not simply 0xbbaddr, because
* the size of a bank is merely 0xc000.
*/
uint8_t read_flash(uint8_t bank, __code uint8_t *addr)
uint8_t read_flash(uint8_t bank, __code const uint8_t *addr)
{
uint8_t v;
uint8_t current_bank = PSBANK;