MSP430FR6043: MSP430-GCC: how to set multiple vectors to the same trap handler (C, linker or asm)?

In order to reduce FRAM consumption I'm trying to set a same common trap-handler to multiple interrupt vectors on MSP430FR6043.

With the TI compiler this is possible using "pragma vector":

#pragma vector=RTC_VECTOR, PORT2_VECTOR, …, UNMI_VECTOR
__interrupt void Dummy_ISR(void) { while (1) { } }

Is there an equivalent for MSP430 GCC compiler 9.3.1.11, which uses "__attribute__((interrupt(x)))"?

On MSP430 irq handlers and vectors with gcc there is a hint, but it fills the memory every 32-bit instead every 16-bit (the vector table has 16-bit elements!).

Example msp430fr6043.ld:

MEMORY {
…
  UNUSED_VECTS_1   : ORIGIN = 0xFF90, LENGTH = 0x004C  /* END=0xFFDB, 38 vectors, size 76 bytes*/
…
}

SECTIONS
{
…
  __unused_vectors_1      : { KEEP (*(__unused_vectors_1)) } > UNUSED_VECTS_1  /* 0 - 37 =  38 vectors */
…
}

traps.c:

static void __attribute((interrupt)) default_trap(void) {
    while (1) { }
}

__attribute__((section("__unused_vectors_1"), used))
static void (*vectors[19])(void) = {  // 1. compile ok, but elements are 32 not 16-bit!
//static const uintptr_t v[19] = {    // 2. compile ok, but elements are 32 not 16-bit!
//static const __int20 v[19] = {      // 3. compile ok, but elements are 32 not 16-bit!
//static const uint16_t v[38] = {     // 4. compile error: initializer element is not computable at load time
    default_trap,  // unused
    default_trap,  // unused
    default_trap,  // unused
    default_trap,  // unused
    0,             // intentionally left zero to check the result
    0,             // same as above
};

In the above traps.c snippet, the first 3 forms compile, but the result is wrong. For example if the resulting address of default_trap is 0x99FA, then the resulting memory content at 0xFF90 is: 99FA 0000, 99FA 0000, 99FA 0000, 99FA 0000, 0000 0000, 0000 0000, .... but what I expect is 99FA, 99FA, 99FA, 99FA, ....

If I try to force the table to be 16-bit (the form 4 in the above traps.c), then the code doesn't compile, failing with the "initializer element is not computable at load time" error!

Any suggestion how to achieve this with GCC using any C/ASM/Linker combination? Thanks!