From: christophe.lyon.oss@gmail.com
To: gdb-patches@sourceware.org
Cc: torbjorn.svensson@st.com, Christophe Lyon <christophe.lyon@foss.st.com>
Subject: [PATCH v3 3/5] gdb/arm: Introduce arm_cache_init
Date: Fri, 4 Feb 2022 09:41:49 +0100 [thread overview]
Message-ID: <20220204084151.14480-4-christophe.lyon@gmail.com> (raw)
In-Reply-To: <20220204084151.14480-1-christophe.lyon@gmail.com>
From: Christophe Lyon <christophe.lyon@foss.st.com>
This patch is a preparation for the rest of the series and adds two
arm_cache_init helper functions. It updates every place that updates
cache->saved_regs to call the helper instead.
Signed-off-by: Torbjorn Svensson <torbjorn.svensson@st.com>
Signed-off-by: Christophe Lyon <christophe.lyon@foss.st.com>
---
gdb/arm-tdep.c | 29 +++++++++++++++++++++++------
1 file changed, 23 insertions(+), 6 deletions(-)
diff --git a/gdb/arm-tdep.c b/gdb/arm-tdep.c
index 8533851eceb..18b7c18d3cc 100644
--- a/gdb/arm-tdep.c
+++ b/gdb/arm-tdep.c
@@ -290,6 +290,23 @@ struct arm_prologue_cache
trad_frame_saved_reg *saved_regs;
};
+static void
+arm_cache_init (struct arm_prologue_cache *cache, struct gdbarch *gdbarch)
+{
+ cache->framesize = 0;
+ cache->framereg = 0;
+ cache->saved_regs = trad_frame_alloc_saved_regs (gdbarch);
+}
+
+static void
+arm_cache_init (struct arm_prologue_cache *cache, struct frame_info *frame)
+{
+ struct gdbarch *gdbarch = get_frame_arch (frame);
+ cache->prev_sp = get_frame_register_unsigned (frame, ARM_SP_REGNUM);
+
+ arm_cache_init (cache, gdbarch);
+}
+
namespace {
/* Abstract class to read ARM instructions from memory. */
@@ -1926,7 +1943,7 @@ arm_make_prologue_cache (struct frame_info *this_frame)
CORE_ADDR unwound_fp;
cache = FRAME_OBSTACK_ZALLOC (struct arm_prologue_cache);
- cache->saved_regs = trad_frame_alloc_saved_regs (this_frame);
+ arm_cache_init (cache, this_frame);
arm_scan_prologue (this_frame, cache);
@@ -2392,7 +2409,7 @@ arm_exidx_fill_cache (struct frame_info *this_frame, gdb_byte *entry)
struct arm_prologue_cache *cache;
cache = FRAME_OBSTACK_ZALLOC (struct arm_prologue_cache);
- cache->saved_regs = trad_frame_alloc_saved_regs (this_frame);
+ arm_cache_init (cache, this_frame);
for (;;)
{
@@ -2786,7 +2803,7 @@ arm_make_epilogue_frame_cache (struct frame_info *this_frame)
int reg;
cache = FRAME_OBSTACK_ZALLOC (struct arm_prologue_cache);
- cache->saved_regs = trad_frame_alloc_saved_regs (this_frame);
+ arm_cache_init (cache, this_frame);
/* Still rely on the offset calculated from prologue. */
arm_scan_prologue (this_frame, cache);
@@ -2947,7 +2964,7 @@ arm_make_stub_cache (struct frame_info *this_frame)
struct arm_prologue_cache *cache;
cache = FRAME_OBSTACK_ZALLOC (struct arm_prologue_cache);
- cache->saved_regs = trad_frame_alloc_saved_regs (this_frame);
+ arm_cache_init (cache, this_frame);
cache->prev_sp = get_frame_register_unsigned (this_frame, ARM_SP_REGNUM);
@@ -3025,7 +3042,7 @@ arm_m_exception_cache (struct frame_info *this_frame)
uint32_t secure_stack_used;
cache = FRAME_OBSTACK_ZALLOC (struct arm_prologue_cache);
- cache->saved_regs = trad_frame_alloc_saved_regs (this_frame);
+ arm_cache_init (cache, this_frame);
/* ARMv7-M Architecture Reference "B1.5.6 Exception entry behavior"
describes which bits in LR that define which stack was used prior
@@ -13611,7 +13628,7 @@ arm_analyze_prologue_test ()
test_arm_instruction_reader mem_reader (insns);
arm_prologue_cache cache;
- cache.saved_regs = trad_frame_alloc_saved_regs (gdbarch);
+ arm_cache_init (&cache, gdbarch);
arm_analyze_prologue (gdbarch, 0, sizeof (insns) - 1, &cache, mem_reader);
}
--
2.25.1
next prev parent reply other threads:[~2022-02-04 8:42 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-04 8:41 [PATCH v3 0/5] arm: Add support for multiple stacks on Cortex-M christophe.lyon.oss
2022-02-04 8:41 ` [PATCH v3 1/5] gdb/arm: Fix prologue analysis to support vpush christophe.lyon.oss
2022-02-04 8:41 ` [PATCH v3 2/5] gdb/arm: Define MSP and PSP registers for M-Profile christophe.lyon.oss
2022-02-04 8:41 ` christophe.lyon.oss [this message]
2022-02-04 8:41 ` [PATCH v3 4/5] gdb/arm: Add support for multiple stack pointers on Cortex-M christophe.lyon.oss
2022-02-04 8:41 ` [PATCH v3 5/5] gdb/arm: Extend arm_m_addr_is_magic to support FNC_RETURN, add unwind-ns-to-s command christophe.lyon.oss
2022-02-25 9:54 ` [PATCH v3 0/5] arm: Add support for multiple stacks on Cortex-M Maxim Kuvyrkov
2022-02-27 11:35 ` Joel Brobecker
2022-02-28 10:38 ` Christophe Lyon
2022-03-06 10:48 ` Joel Brobecker
2022-03-06 21:19 ` Christophe Lyon
2022-03-11 9:40 ` Yvan Roux
2022-03-11 9:47 ` Christophe Lyon
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