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cmds/alias: add relative base address support #347

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Sep 12, 2024
Merged

cmds/alias: add relative base address support #347

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15 changes: 10 additions & 5 deletions cmds/alias.c
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Original file line number Diff line number Diff line change
Expand Up @@ -26,7 +26,7 @@ static addr_t aliasBase = 0;

static void cmd_aliasInfo(void)
{
lib_printf("sets alias to file, usage: alias [-b <base> | [-r] <name> <offset> <size>]");
lib_printf("sets alias to file, usage: alias [-[r]b <base> | [-r] <name> <offset> <size>]");
}


Expand All @@ -36,7 +36,7 @@ static int cmd_alias(int argc, char *argv[])
size_t sz = 0;
addr_t addr = 0;
int c, relative = 0;
addr_t newBase;
long newBase;

if (argc == 1) {
if (aliasBase != 0) {
Expand Down Expand Up @@ -64,15 +64,20 @@ static int cmd_alias(int argc, char *argv[])
return CMD_EXIT_FAILURE;
}

newBase = lib_strtoul(optarg, &end, 0);
newBase = lib_strtol(optarg, &end, 0);
if (*end != '\0') {
log_error("\n%s: Invalid base.\n", argv[0]);
cmd_aliasInfo();
return CMD_EXIT_FAILURE;
}

aliasBase = newBase;
lib_printf("\n%s: Setting relative base address to 0x%p", argv[0], newBase);
if (relative) {
aliasBase += newBase;
}
else {
aliasBase = newBase;
}
lib_printf("\n%s: Setting relative base address to 0x%p", argv[0], aliasBase);

/* Ignore everything else, this is a separate function */
return CMD_EXIT_SUCCESS;
Expand Down
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