[Mesa-dev] [PATCH 6/7] ac/rtld: report better error messages for LDS overallocation

[Marek Olšák]

From: Nicolai Hähnle <nicolai.haehnle at amd.com>

---
 src/amd/common/ac_rtld.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/src/amd/common/ac_rtld.c b/src/amd/common/ac_rtld.c
index 18f198f8af2..57d6b0151b4 100644
--- a/src/amd/common/ac_rtld.c
+++ b/src/amd/common/ac_rtld.c
@@ -283,21 +283,26 @@ bool ac_rtld_open(struct ac_rtld_binary *binary,
 	unsigned max_lds_size = 64 * 1024;
 
 	if (i.info->chip_class == GFX6 ||
 	    (i.shader_type != MESA_SHADER_COMPUTE &&
 	     i.shader_type != MESA_SHADER_FRAGMENT))
 		max_lds_size = 32 * 1024;
 
 	uint64_t shared_lds_size = 0;
 	if (!layout_symbols(binary->lds_symbols.data, i.num_shared_lds_symbols, &shared_lds_size))
 		goto fail;
-	report_if(shared_lds_size > max_lds_size);
+
+	if (shared_lds_size > max_lds_size) {
+		fprintf(stderr, "ac_rtld error(1): too much LDS (used = %u, max = %u)\n",
+			(unsigned)shared_lds_size, max_lds_size);
+		goto fail;
+	}
 	binary->lds_size = shared_lds_size;
 
 	/* First pass over all parts: open ELFs, pre-determine the placement of
 	 * sections in the memory image, and collect and layout private LDS symbols. */
 	uint32_t lds_end_align = 0;
 
 	if (binary->options.halt_at_entry)
 		pasted_text_size += 4;
 
 	for (unsigned part_idx = 0; part_idx < i.num_parts; ++part_idx) {
@@ -384,21 +389,25 @@ bool ac_rtld_open(struct ac_rtld_binary *binary,
 
 		struct ac_rtld_symbol *lds_end =
 			util_dynarray_grow(&binary->lds_symbols, struct ac_rtld_symbol, 1);
 		lds_end->name = "__lds_end";
 		lds_end->size = 0;
 		lds_end->align = lds_end_align;
 		lds_end->offset = binary->lds_size;
 		lds_end->part_idx = ~0u;
 	}
 
-	report_elf_if(binary->lds_size > max_lds_size);
+	if (binary->lds_size > max_lds_size) {
+		fprintf(stderr, "ac_rtld error(2): too much LDS (used = %u, max = %u)\n",
+			(unsigned)binary->lds_size, max_lds_size);
+		goto fail;
+	}
 
 	/* Second pass: Adjust offsets of non-pasted text sections. */
 	binary->rx_size = pasted_text_size;
 	binary->rx_size = align(binary->rx_size, rx_align);
 
 	for (unsigned part_idx = 0; part_idx < i.num_parts; ++part_idx) {
 		struct ac_rtld_part *part = &binary->parts[part_idx];
 		size_t num_shdrs;
 		elf_getshdrnum(part->elf, &num_shdrs);
 
-- 
2.17.1