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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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httpd/page_impl.c
+4 -4
View File
@@ -30,7 +30,7 @@ extern __xdata uint16_t slen;
extern __xdata uint16_t management_vlan;
extern __xdata uint16_t cont_len;
extern __xdata uint32_t cont_addr;
extern __code uint8_t * __code hex;
extern __code const uint8_t * __code const hex;
extern __xdata uip_ipaddr_t uip_hostaddr, uip_draddr, uip_netmask;
extern __xdata uint8_t sfr_data[4];
@@ -47,8 +47,8 @@ extern __xdata char sfp_module_model[2][17];
extern __xdata char sfp_module_serial[2][17];
extern __xdata uint8_t sfp_options[2];
__code uint8_t * __code HTTP_RESPONCE_JSON = "HTTP/1.1 200 OK\r\nConnection: close\r\nContent-Type: application/json\r\n\r\n";
__code uint8_t * __code HTTP_RESPONCE_TXT = "HTTP/1.1 200 OK\r\nConnection: close\r\nContent-Type: text/plain\r\n\r\n";
__code const uint8_t * __code const HTTP_RESPONCE_JSON = "HTTP/1.1 200 OK\r\nConnection: close\r\nContent-Type: application/json\r\n\r\n";
__code const uint8_t * __code const HTTP_RESPONCE_TXT = "HTTP/1.1 200 OK\r\nConnection: close\r\nContent-Type: text/plain\r\n\r\n";
// Convert uint8_t to ascii HEX char push on html-buffer.
void charhex_to_html(char c)
@@ -127,7 +127,7 @@ void itoa16_html(uint16_t v) /* sufficient for VLAN IDs (max 4094) */
char_to_html('0' + (v % 10));
}
void string_to_html(__code char *s)
void string_to_html(__code const char *s)
{
while (*s) char_to_html(*s++);
}