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arm-gen.c:
- remove fr parameter from load_value

tccelf.c:
- update comment and remove check for sh_size

tests/boundtest.c:
- fix testcase 16/17
This commit is contained in:
herman ten brugge 2021-01-12 18:06:23 +01:00
parent 28646b559d
commit c74c6ed61a
3 changed files with 10 additions and 9 deletions
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10
arm-gen.c
View File

@ -538,11 +538,11 @@ static int negcc(int cc)
/* Load value into register r. /* Load value into register r.
Use relative/got addressing to avoid setting DT_TEXTREL */ Use relative/got addressing to avoid setting DT_TEXTREL */
static void load_value(SValue *sv, int fr, int r) static void load_value(SValue *sv, int r)
{ {
o(0xE59F0000|(intr(r)<<12)); o(0xE59F0000|(intr(r)<<12));
o(0xEA000000); o(0xEA000000);
if(fr & VT_SYM) { if(sv->r & VT_SYM) {
if (sv->sym->type.t & VT_STATIC) { if (sv->sym->type.t & VT_STATIC) {
greloc(cur_text_section, sv->sym, ind, R_ARM_REL32); greloc(cur_text_section, sv->sym, ind, R_ARM_REL32);
o(sv->c.i - 12); o(sv->c.i - 12);
@ -656,14 +656,14 @@ void load(int r, SValue *sv)
if (v == VT_CONST) { if (v == VT_CONST) {
op=stuff_const(0xE3A00000|(intr(r)<<12),sv->c.i); op=stuff_const(0xE3A00000|(intr(r)<<12),sv->c.i);
if (fr & VT_SYM || !op) if (fr & VT_SYM || !op)
load_value(sv, fr, r); load_value(sv, r);
else else
o(op); o(op);
return; return;
} else if (v == VT_LOCAL) { } else if (v == VT_LOCAL) {
op=stuff_const(0xE28B0000|(intr(r)<<12),sv->c.i); op=stuff_const(0xE28B0000|(intr(r)<<12),sv->c.i);
if (fr & VT_SYM || !op) { if (fr & VT_SYM || !op) {
load_value(sv, fr, r); load_value(sv, r);
o(0xE08B0000|(intr(r)<<12)|intr(r)); o(0xE08B0000|(intr(r)<<12)|intr(r));
} else } else
o(op); o(op);
@ -797,7 +797,7 @@ static void gcall_or_jmp(int is_jmp)
o(x|(is_jmp?0xE0000000:0xE1000000)); o(x|(is_jmp?0xE0000000:0xE1000000));
} else { } else {
r = TREG_LR; r = TREG_LR;
load_value(vtop, vtop->r, r); load_value(vtop, r);
if(is_jmp) if(is_jmp)
o(0xE1A0F000 | intr(r)); // mov pc, r o(0xE1A0F000 | intr(r)); // mov pc, r
else else

4
tccelf.c
View File

@ -2243,7 +2243,7 @@ static int final_sections_reloc(TCCState *s1)
These gaps are a result of final_sections_reloc. Here some relocs are removed. These gaps are a result of final_sections_reloc. Here some relocs are removed.
The gaps are then filled with 0 in tcc_output_elf. The 0 is intepreted as The gaps are then filled with 0 in tcc_output_elf. The 0 is intepreted as
R_...NONE reloc. This does work on most targets but on OpenBSD/arm64 this R_...NONE reloc. This does work on most targets but on OpenBSD/arm64 this
is illegal. */ is illegal. OpenBSD/arm64 does not support R_...NONE reloc. */
static void update_reloc_sections(TCCState *s1, struct dyn_inf *dyninf) static void update_reloc_sections(TCCState *s1, struct dyn_inf *dyninf)
{ {
int i; int i;
@ -2256,7 +2256,7 @@ static void update_reloc_sections(TCCState *s1, struct dyn_inf *dyninf)
for(i = 1; i < s1->nb_sections; i++) { for(i = 1; i < s1->nb_sections; i++) {
s = s1->sections[i]; s = s1->sections[i];
if (s->sh_type == SHT_RELX && s->sh_size && s != relocplt) { if (s->sh_type == SHT_RELX && s != relocplt) {
if (dyninf->rel_size == 0) { if (dyninf->rel_size == 0) {
dyninf->rel_addr = s->sh_addr; dyninf->rel_addr = s->sh_addr;
file_offset = s->sh_offset; file_offset = s->sh_offset;

5
tests/boundtest.c
View File

@ -172,6 +172,7 @@ int test13(void)
#if defined __i386__ || defined __x86_64__ #if defined __i386__ || defined __x86_64__
#define allocf(x) #define allocf(x)
#else #else
#undef alloca
#define alloca(x) malloc(x) #define alloca(x) malloc(x)
#define allocf(x) free(x) #define allocf(x) free(x)
#endif #endif
@ -207,10 +208,10 @@ int test16()
p = alloca(16); p = alloca(16);
strcpy(p,"12345678901234"); strcpy(p,"12345678901234");
allocf(p);
/* Test alloca embedded in a larger expression */ /* Test alloca embedded in a larger expression */
printf("alloca : %s : %s\n", p, strcpy(alloca(strlen(demo)+1),demo) ); printf("alloca : %s : %s\n", p, strcpy(alloca(strlen(demo)+1),demo) );
allocf(p);
return 0; return 0;
} }
@ -223,10 +224,10 @@ int test17()
p = alloca(16); p = alloca(16);
strcpy(p,"12345678901234"); strcpy(p,"12345678901234");
allocf(p);
/* Test alloca embedded in a larger expression */ /* Test alloca embedded in a larger expression */
printf("alloca : %s : %s\n", p, strcpy(alloca(strlen(demo)),demo) ); printf("alloca : %s : %s\n", p, strcpy(alloca(strlen(demo)),demo) );
allocf(p);
return 0; return 0;
} }